1
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Ji J, Wang Y, Li C, Xu F, Jiang M. Safe detoxification on acid-washed activated carbon combined with chitosan for aflatoxins from contaminated peanut oil. Mycotoxin Res 2024; 40:667-679. [PMID: 39256275 DOI: 10.1007/s12550-024-00559-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 08/26/2024] [Accepted: 09/03/2024] [Indexed: 09/12/2024]
Abstract
Aflatoxins are one of the most toxic mycotoxins and can cause serious harm to humans and animals. Adsorption is a practical decontamination technique favored by the industry because of its advantages of low cost, speed and simplicity, and environmental friendliness. In this work, the adsorption features of activated carbon and chitosan were fabricated in a composite through chemical co-precipitation to improve its properties for adsorption. Furthermore, the capacity of the synthesized chitosan and acid-washed activated carbon composite (CS-AAC) to attenuate the aflatoxins in contaminated peanut oil and the adsorption capacity at different initial aflatoxins content, contact duration, and temperature were evaluated. The results showed a higher adsorption capacity (removal efficiency to 93.45% of AFB1, 94.05% of AFB2, 89.16% of AFG1, 83.26% of AFG2). The Freundlich isothermal and D-R model and the pseudo-second-order rate expression both implied a good correlation with the test data and explained the adsorption mechanism well. The adsorption mechanism was found to be accomplished primarily via ion exchange and chelation. According to thermodynamic results (△G < 0, △H > 0, △S > 0), the adsorption process was endothermic and spontaneous. Compared to acid-washed activated carbon, CS-AAC enhanced the retention of VE and sterols (especially VE by 23%), and the safety of CS-AAC adsorbent was explored by cellular experiments. In conclusion, CS-AAC is a promising adsorbent material for the removal of aflatoxins from edible oils.
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Affiliation(s)
- Junmin Ji
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou, 450001, P. R. China.
| | - Yan Wang
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou, 450001, P. R. China
| | - Changjiang Li
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou, 450001, P. R. China
| | - Fengyao Xu
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou, 450001, P. R. China
| | - Miaomiao Jiang
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou, 450001, P. R. China
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2
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Cao Y, Zhong X, Tan M, Ma D, Li K. Preparation of chitosan/cellulose nanofibril composite aerogel and its adsorption performance for Cu(II)-MO binary pollutant. Int J Biol Macromol 2024:136418. [PMID: 39393725 DOI: 10.1016/j.ijbiomac.2024.136418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 06/25/2024] [Accepted: 10/06/2024] [Indexed: 10/13/2024]
Abstract
Heavy metals and organic dyes commonly coexist in water, which pose a serious threat to human health. Herein, a functional aerogel for adsorption of Cu(II)-methyl orange binary-polluted system was prepared. Cellulose nanofibril (CNF) was prepared by 2,2,6,6-tetramethylpiperidinyloxy (TEMPO)-NaBr-NaClO system using abandoned pineapple leaves as the main raw material, and chitosan/cellulose nanofibril (CS/CNF) composite aerogel was constructed by sol-gel method combined with freeze-drying. The structure of composite aerogel was characterized by XRD, FTIR, TG and SEM. The fabricated aerogels were ultra-lightweight and exhibited a highly porous 3D network structure. The effects of adsorbent dosage, ionic strength, solution pH, adsorbent concentration, adsorption time, and temperature on the adsorption of Cu(II) and methyl orange (MO) by composite aerogel were studied. The adsorption of composite aerogel towards mono-polluted of Cu(II) and MO reached equilibrium after 100 min with a maximum adsorption capacity of 116.69 and 295.86 mg/g, respectively. The adsorption of Cu(II) and MO by CS/CNF aerogel was mainly achieved through electrostatic attraction, metal chelation and hydrogen bonding interactions. More importantly, the adsorption of Cu(II) by CS/CNF aerogel has an inhibitory effect on its adsorption of MO in Cu(II)-MO binary-polluted system.
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Affiliation(s)
- Yinyin Cao
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Province Engineering Laboratory for Marine Biological Products, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang 524088, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Xinping Zhong
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Province Engineering Laboratory for Marine Biological Products, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang 524088, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Minghui Tan
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Province Engineering Laboratory for Marine Biological Products, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang 524088, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China.
| | - Donglin Ma
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Province Engineering Laboratory for Marine Biological Products, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang 524088, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Kuntai Li
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Province Engineering Laboratory for Marine Biological Products, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang 524088, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China.
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3
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Yahya R, Elshaarawy RFM. Adsorptive removal of Pb(II) ions from aqueous effluents using O-carboxymethyl chitosan Schiff base-sugarcane bagasse microbeads. Int J Biol Macromol 2024; 277:134350. [PMID: 39094877 DOI: 10.1016/j.ijbiomac.2024.134350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Revised: 06/10/2024] [Accepted: 07/29/2024] [Indexed: 08/04/2024]
Abstract
In this study, a novel and cost-effective approach was employed to prepare an effective Pb(II) adsorbent. We synthesized highly porous CMCSB-SCB microbeads with multiple active binding sites by combining carboxymethylated chitosan Schiff base (CMCSB) and sugarcane bagasse (SCB). These microbeads were structurally and morphologically characterized using various physical, analytical, and microscopic techniques. The SEM image and N2-adsorption analysis of CMCSB-SCB revealed a highly porous structure with irregularly shaped voids and interconnected pores. The CMCSB-SCB microbeads demonstrated an impressive aqueous Pb(II) adsorption capacity, reaching a maximum of 318.21 mg/g, under identified optimal conditions: pH 4.5, 15 mg microbeads dosage, 30 min contact time, and Pb(II) initial concentration (350 mg/L). The successful adsorption of Pb(II) onto CMCSB-SCB beads was validated using FTIR, EDX, and XPS techniques. Furthermore, the experimental data fitting indicated a good agreement with the Langmuir model (R2 = 0.99633), whereas the adsorption kinetics aligned well with the pseudo-second-order model (R2 = 0.99978). The study also identified the Pb(II) adsorption mechanism by CMCSB-SCB microbeads as monolayer chemisorption.
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Affiliation(s)
- Rana Yahya
- University of Jeddah, College of Science, Department of Chemistry, Jeddah, Saudi Arabia.
| | - Reda F M Elshaarawy
- Chemistry Department, Faculty of Science, Suez University, Suez, Egypt; Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine Universität Düsseldorf, Düsseldorf, Germany.
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4
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Xu Z, Duan X, Chen Y, Chen D, Lu H, Zhan J, Ren X, Pan X. Great truths are always simple: A millimeter-sized macroscopic lanthanum-calcium dual crosslinked carboxymethyl chitosan aerogel bead as a promising adsorbent for scavenging oxytetracycline from wastewater. Int J Biol Macromol 2024; 278:134499. [PMID: 39217038 DOI: 10.1016/j.ijbiomac.2024.134499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 07/29/2024] [Accepted: 08/03/2024] [Indexed: 09/04/2024]
Abstract
Given their increasing environmental and health harms, it is crucial to develop green and sustainable techniques for scavenging antibiotics represented by oxytetracycline (OTC) from wastewater. In the present work, a structurally simple lanthanum-calcium dual crosslinked carboxymethyl chitosan (CMCS-La3+-Ca2+) aerogel was innovatively synthesized for adsorptive removal of OTC. It was found that CMCS and La3+ sites collaboratively participated in OTC elimination, and OTC removal peaked over the wide pH range of 4-7. The process of OTC sorption was better described by the pseudo-second-order kinetic model and Redlich-Peterson model, and the saturated uptake amount toward OTC was up to 580.91 mg/g at 303 K, which was comparable to the bulk of previous records. The as-fabricated composite also exerted exceptional capture capacity toward OTC in consecutive adsorption-desorption runs and high-salinity wastewater. Amazingly, its packed column continuously ran for over 60 h with a dynamic uptake amount of 215.21 mg/g until the adsorption was saturated, illustrating its great potential in scale-up applications. Mechanism studies demonstrated that multifarious spatially-isolated reactive sites of CMCS-La3+-Ca2+ cooperatively involved in OTC capture via multi-mechanisms, such as n-π EDA interaction, H-bonding, La3+-complexation, and cation-π bonding. All the above superiorities endow it as a promising adsorbent for OTC-containing wastewater decontamination.
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Affiliation(s)
- Zhixiang Xu
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China..
| | - Xingyu Duan
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Yuning Chen
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Dongshan Chen
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Hao Lu
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Juhong Zhan
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Xiaomin Ren
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Xuejun Pan
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China..
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5
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Singh A, Kumar V, Anand S, Phukan D, Pandey N. Fungi-derived Chitosan-CTAB composite-based electrode for electrochemical simultaneous detection of Cd (II) and Pb (II). Int J Biol Macromol 2024; 280:136113. [PMID: 39343271 DOI: 10.1016/j.ijbiomac.2024.136113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2024] [Revised: 09/08/2024] [Accepted: 09/26/2024] [Indexed: 10/01/2024]
Abstract
Organic polymers have found diverse applications in the industrial and scientific world. One such application is using chitosan-based electrochemical sensors, which have gained rapid popularity due to their unique properties. To further enhance the material's porosity and adsorption capacity, the incorporation of a surfactant into the film has been explored. This study focuses on a rarely investigated combination of fungi-derived chitosan and cationic surfactant N-Cetyl-N, N, N-trimethyl-ammonium bromide (CTAB). The resultant composite was transformed into a thin film on the surface of a graphite electrode, by drop casting method, followed by curing at 65 °C hot air. The low-cost sensor thus obtained was characterized by electrochemical studies, and surface study techniques including AFM, SEM, and XPS. The results showed the properties of the film were strongly governed by the ratio of components in the composite. Under optimal conditions, the affinity for composite film increased 3 to 4 folds for Pb and Cd. The developed electrochemical sensors had a limit of detection of 0.317 μM and 0.572 μM for Pb and Cd respectively. The linear range of detection was found to be 1 × 10-6 M to 1.2 × 10-4 M for Pb (II) and 2 × 10-6 M to 1.4 × 10-4 M for Cd (II).
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Affiliation(s)
- Ankur Singh
- Laboratory of Applied Microbiology, Department of Environmental Science & Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand 826 004, India
| | - Vipin Kumar
- Laboratory of Applied Microbiology, Department of Environmental Science & Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand 826 004, India.
| | - Saumya Anand
- Laboratory of Applied Microbiology, Department of Environmental Science & Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand 826 004, India
| | - Dixita Phukan
- Laboratory of Applied Microbiology, Department of Environmental Science & Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand 826 004, India
| | - Nishant Pandey
- Laboratory of Applied Microbiology, Department of Environmental Science & Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand 826 004, India
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6
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Sirajudheen P, Vigneshwaran S, Thomas N, Selvaraj M, Assiri MA, Park CM. Critical assessment of recent advancements in chitosan-functionalized iron and geopolymer-based adsorbents for the selective removal of arsenic from water. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:946. [PMID: 39289191 DOI: 10.1007/s10661-024-13087-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 08/31/2024] [Indexed: 09/19/2024]
Abstract
Inorganic arsenic (As), a known carcinogen and major contaminant in drinking water, affects over 140 million people globally, with levels exceeding the World Health Organization's (WHO) guidelines of 10 μg L-1. Developing innovative technologies for effluent handling and decontaminating polluted water is critical. This paper summarizes the fundamental characteristics of chitosan-embedded composites for As adsorption from water. The primary challenge in selectively removing As ions is the presence of phosphate, which is chemically similar to As(V). This study evaluates and summarizes innovative As adsorbents based on chitosan and its composite modifications, focusing on factors influencing their adsorption affinity. The kinetics, isotherms, column models, and thermodynamic aspects of the sorption processes were also explored. Finally, the adsorption process and implications of functionalized chitosan for wastewater treatment were analyzed. There have been minimal developments in water disinfection using metal-biopolymer composites for environmental purposes. This field of study offers numerous research opportunities to expand the use of biopolymer composites as detoxifying materials and to gain deeper insights into the foundations of biopolymer composite adsorbents, which merit further investigation to enhance adsorbent stability.
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Affiliation(s)
- P Sirajudheen
- Department of Chemistry, Pocker Sahib Memorial Orphanage College, Tirurangadi, Malappuram, Kerala, 676306, India.
| | - S Vigneshwaran
- Environmental System Laboratory, Department of Civil Engineering, Kyung Hee University Global Campus, Seoul, 1732 Deogyong-daero, Giheung-Gu, Yongin-Si, Gyeonggi-Do, 16705, Republic of Korea
| | - Nygil Thomas
- Department of Chemistry, Nirmalagiri College, Kuthuparamba, Nirmalagiri P.O, Kannur, Kerala, 670701, India
| | - Manickam Selvaraj
- Department of Chemistry, Faculty of Science, King Khalid University, 61413, Abha, Saudi Arabia
- Research Centre for Advanced Materials Science (RCAMS), King Khalid University, PO Box 9004, Abha, 61413, Saudi Arabia
| | - Mohammed A Assiri
- Department of Chemistry, Faculty of Science, King Khalid University, 61413, Abha, Saudi Arabia
- Research Centre for Advanced Materials Science (RCAMS), King Khalid University, PO Box 9004, Abha, 61413, Saudi Arabia
| | - Chang Min Park
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-Ro, Buk-Gu, Daegu, 41566, Republic of Korea.
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7
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Fekete E, Csiszár E. Chitosan-Alginate Gels for Sorption of Hazardous Materials: The Effect of Chemical Composition and Physical State. Int J Mol Sci 2024; 25:8406. [PMID: 39125991 PMCID: PMC11312824 DOI: 10.3390/ijms25158406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2024] [Revised: 07/22/2024] [Accepted: 07/24/2024] [Indexed: 08/12/2024] Open
Abstract
Chitosan, alginate, and chitosan-alginate (50:50) mixed hydrogels were prepared by freeze casting, freeze-drying, and subsequent physical cross-linking. Chitosan was cross-linked with citrate and alginate with calcium ions, while the mixed gels were cross-linked with both cross-linking agents. Both cryogels and xerogels were obtained by lyophilization and drying of the hydrogels. We investigated the effect of the chemical composition and the physical state of gels on the gel structure and sorption of model dyes. Alginate and mixed gels cross-linked with Ca2+ ions sorbed 80-95% of cationic dye from the solutions. The chitosan gels are primarily capable of adsorbing anionic dyes, but at near-neutral pH, their capacity is lower than that of alginate gels, showing 50-60% dye sorption. In the case of alginate gels, the dye sorption capacity of xerogels, cryogels, and hydrogels was the same, but for chitosan gels, the hydrogels adsorbed slightly less dye than the dried gels.
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Affiliation(s)
- Erika Fekete
- Polymer Chemistry and Physics Research Group, Institute of Materials and Environmental Chemistry, HUN-REN Research Centre for Natural Sciences, Magyar Tudósok Körútja 2, H-1117 Budapest, Hungary
- Department of Physical Chemistry and Materials Science, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary;
| | - Emília Csiszár
- Department of Physical Chemistry and Materials Science, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary;
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8
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Goswami R, Mishra A, Mishra PK, Rajput A. Linear and nonlinear regression modelling of industrial dye adsorption using nanocellulose@chitosan nanocomposite beads. Int J Biol Macromol 2024; 274:133512. [PMID: 38944080 DOI: 10.1016/j.ijbiomac.2024.133512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 05/10/2024] [Accepted: 06/26/2024] [Indexed: 07/01/2024]
Abstract
Nanocellulose@chitosan (nc@ch) composite beads were prepared via coagulation technique for the elimination of malachite green dye from aqueous solution. As malachite green dye is highly used in textile industries for dyeing purpose which after usage shows fatal effects to the ecosystems and human beings also. In this study the formulated nanocellulose@chitosan composite beads were characterized by Particle size analysis (PSA), Field emission scanning electron microscopy (FESEM), Fourier-transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) analysis were done to evaluate nanoparticles size distribution, morphological behaviour, functional group entities and degree of crystallinity of prepared beads. The nanocomposite beads adsorption performance was investigated for malachite green (MG) dye and BET analysis were also recorded to know about porous behaviour of the nanocomposite beads. Maximum removal of malachite green (MG) dye was found to be 72.0 mg/g for 100 ppm initial dye concentration. For accurate observations linear and non-linear modelling was done to know about the best-fitted adsorption model during the removal mechanism of dye molecules, on evaluating it has been observed that Langmuir isotherm and Freundlich isotherm show best-fitted observation in the case of linear and non-linear isotherm respectively (R2 = 0.96 & R2 = 0.957). In the case of kinetic linear models, the data was well fitted with pseudo-second-order showing chemosorption mechanism (R2 = 0.999), and in the case of non-linear kinetic model pseudo first order showed good fit showing physisorption mechanism during adsorption (R2 = 0.999). The thermodynamic study showed positive values for ΔH° and ΔS° throughout the adsorption process respectively, implying an endothermic behaviour. In view of cost effectiveness, desorption or regeneration study was done and it was showed that after the 5th cycle, the removal tendency had decreased from 48 to 38 % for 20-100 ppm dye solution accordingly. Thus, nanocomposite beads prepared by the coagulation method seem to be a suitable candidate for dye removal from synthetic wastewater and may have potential to be used in small scale textile industries for real wastewater treatment.
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Affiliation(s)
- Rekha Goswami
- Department of Environmental Science, Graphic Era Hill University, Dehradun, Uttarakhand, India
| | - Abhilasha Mishra
- Department of Chemistry, Graphic Era (Deemed to be) University, Dehradun, Uttarakhand, India.
| | - Pawan Kumar Mishra
- Department of Computer Science and Engineering, Graphic Era (Deemed to be) University, Dehradun, Uttarakhand, India
| | - Akanksha Rajput
- Department of Chemistry, Graphic Era (Deemed to be) University, Dehradun, Uttarakhand, India
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9
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Saud A, Gupta S, Allal A, Preud’homme H, Shomar B, Zaidi SJ. Progress in the Sustainable Development of Biobased (Nano)materials for Application in Water Treatment Technologies. ACS OMEGA 2024; 9:29088-29113. [PMID: 39005778 PMCID: PMC11238215 DOI: 10.1021/acsomega.3c08883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 03/14/2024] [Accepted: 03/21/2024] [Indexed: 07/16/2024]
Abstract
Water pollution remains a widespread problem, affecting the health and wellbeing of people around the globe. While current advancements in wastewater treatment and desalination show promise, there are still challenges that need to be overcome to make these technologies commercially viable. Nanotechnology plays a pivotal role in water purification and desalination processes today. However, the release of nanoparticles (NPs) into the environment without proper safeguards can lead to both physical and chemical toxicity. Moreover, many methods of NP synthesis are expensive and not environmentally sustainable. The utilization of biomass as a source for the production of NPs has the potential to mitigate issues pertaining to cost, sustainability, and pollution. The utilization of biobased nanomaterials (bio-NMs) sourced from biomass has garnered attention in the field of water purification due to their cost-effectiveness, biocompatibility, and biodegradability. Several research studies have been conducted to efficiently produce NPs (both inorganic and organic) from biomass for applications in wastewater treatment. Biosynthesized materials such as zinc oxide NPs, phytogenic magnetic NPs, biopolymer-coated metal NPs, cellulose nanocrystals, and silver NPs, among others, have demonstrated efficacy in enhancing the process of water purification. The utilization of environmentally friendly NPs presents a viable option for enhancing the efficiency and sustainability of water pollution eradication. The present review delves into the topic of biomass, its origins, and the methods by which it can be transformed into NPs utilizing an environmentally sustainable approach. The present study will examine the utilization of greener NPs in contemporary wastewater and desalination technologies.
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Affiliation(s)
- Asif Saud
- Center
for Advanced Materials, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Soumya Gupta
- Center
for Advanced Materials, Qatar University, P.O. Box 2713, Doha, Qatar
- IPREM-UMR5254,
E2S UPPA, CNRS, 2 avenue Angot, 64053 Pau cedex, France
| | - Ahmed Allal
- IPREM-UMR5254,
E2S UPPA, CNRS, 2 avenue Angot, 64053 Pau cedex, France
| | | | - Basem Shomar
- Environmental
Science Center, Qatar University, , P.O. Box 2713, Doha, Qatar
| | - Syed Javaid Zaidi
- UNESCO
Chair on Desalination and Water Treatment, Center for Advanced Materials
(CAM), Qatar University, Doha, Qatar
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10
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Chauhan K, Singh P, Sen K, Singhal RK, Thakur VK. Recent Advancements in the Field of Chitosan/Cellulose-Based Nanocomposites for Maximizing Arsenic Removal from Aqueous Environment. ACS OMEGA 2024; 9:27766-27788. [PMID: 38973859 PMCID: PMC11223156 DOI: 10.1021/acsomega.3c09713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 05/27/2024] [Accepted: 06/05/2024] [Indexed: 07/09/2024]
Abstract
Water remediation, acknowledged as a significant scientific topic, guarantees the safety of drinking water, considering the diverse range of pollutants that can contaminate it. Among these pollutants, arsenic stands out as a particularly severe threat to human health, significantly compromising the overall quality of life. Despite widespread awareness of the harmful effects of arsenic poisoning, there remains a scarcity of literature on the utilization of biobased polymers as sustainable alternatives for comprehensive arsenic removal in practical concern. Cellulose and chitosan, two of the most prevalent biopolymers in nature, provide a wide range of potential benefits in cutting-edge industries, including water remediation. Nanocomposites derived from cellulose and chitosan offer numerous advantages over their larger equivalents, including high chelating properties, cost-effective production, strength, integrity during usage, and the potential to close the recycling loop. Within the sphere of arsenic remediation, this Review outlines the selection criteria for novel cellulose/chitosan-nanocomposites, such as scalability in synthesis, complete arsenic removal, and recyclability for technical significance. Especially, it aims to give an overview of the historical development of research in cellulose and chitosan, techniques for enhancing their performance, the current state of the art of the field, and the mechanisms underlying the adsorption of arsenic using cellulose/chitosan nanocomposites. Additionally, it extensively discusses the impact of shape and size on adsorbent efficiency, highlighting the crucial role of physical characteristics in optimizing performance for practical applications. Furthermore, this Review addresses regeneration, reuse, and future prospects for chitosan/cellulose-nanocomposites, which bear practical relevance. Therefore, this Review underscores the significant research gap and offers insights into refining the structural features of adsorbents to improve total inorganic arsenic removal, thereby facilitating the transition of green-material-based technology into operational use.
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Affiliation(s)
- Kalpana Chauhan
- Chemistry
under School of Engineering and Technology, Central University of Haryana, Mahendragarh, Haryana 123031, India
| | - Prem Singh
- Shoolini
University, Solan, Himachal Pradesh 173229, India
| | - Kshipra Sen
- Shoolini
University, Solan, Himachal Pradesh 173229, India
| | - Rakesh Kumar Singhal
- Analytical
Chemistry Division, Bhabha Atomic Research
Centre, Mumbai 400085, India
| | - Vijay Kumar Thakur
- Biorefining
and Advanced Materials Research Centre, Scotland’s Rural College (SRUC), Kings Buildings, West Mains Road, Edinburgh EH9 3JG, United Kingdom
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11
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Nagaraja B, Janga JK, Hossain S, Verma G, Palomino AM, Reddy KR. Novel chitosan-based barrier materials for environmental containment: Synthesis, characterization, and contaminant removal capacities and mechanisms. CHEMOSPHERE 2024; 359:142285. [PMID: 38723684 DOI: 10.1016/j.chemosphere.2024.142285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Revised: 05/05/2024] [Accepted: 05/06/2024] [Indexed: 06/05/2024]
Abstract
This study critically appraises employing chitosan as a composite with bentonite, biochar, or both materials as an alternative to conventional barrier materials. A comprehensive literature review was conducted to identify the studies reporting chitosan-bentonite composite (CBC), chitosan amended biochar (CAB), and chitosan-bentonite-biochar composite (CBBC) for effective removal of various contaminants. The study aims to review the synthesis of these composites, identify fundamental properties affecting their adsorption capacities, and examine how these properties affect or enhance the removal abilities of other materials within the composite. Notably, CBC composites have the advantage of adsorbing both cationic and anionic species, such as heavy metals and dyes, due to the cationic nature of chitosan and the anionic nature of montmorillonite, along with the increased accessible surface area due to the clay. CAB composites have the unique advantage of being low-cost sorbents with high specific surface area, affinity for a wide range of contaminants owing to the high surface area and microporosity of biochar, and abundant available functional groups from the chitosan. Limited studies have reported the utilization of CBBC composites to remove various contaminants. These composites can be prepared by combining the steps employed in preparing CBC and CAB composites. They can benefit from the favorable adsorption properties of all three materials while also satisfying the mechanical requirements of a barrier material. This study serves as a knowledge base for future research to develop novel composite barrier materials by incorporating chitosan and biochar as amendments to bentonite.
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Affiliation(s)
- Banuchandra Nagaraja
- Department of Civil, Materials, and Environmental Engineering, University of Illinois Chicago, 842 West Taylor Street, Chicago, IL, 60607, USA.
| | - Jagadeesh Kumar Janga
- Department of Civil, Materials, and Environmental Engineering, University of Illinois Chicago, 842 West Taylor Street, Chicago, IL, 60607, USA.
| | - Sadam Hossain
- Department of Civil and Environmental Engineering, University of Tennessee Knoxville, 423 John D. Tickle Building, Knoxville, TN, 37996, USA.
| | - Gaurav Verma
- Department of Civil, Materials, and Environmental Engineering, University of Illinois Chicago, 842 West Taylor Street, Chicago, IL, 60607, USA.
| | - Angelica M Palomino
- Department of Civil and Environmental Engineering, University of Tennessee Knoxville, 423 John D. Tickle Building, Knoxville, TN, 37996, USA.
| | - Krishna R Reddy
- Department of Civil, Materials, and Environmental Engineering, University of Illinois Chicago, 842 West Taylor Street, Chicago, IL, 60607, USA.
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Hui Y, Liu R, Lan J, Sun T, Xu A. Recyclable chitosan adsorbent: Facile functionalization strategy, excellent removal capacity of dyes and adsorption mechanism. CHEMOSPHERE 2024; 359:142291. [PMID: 38750728 DOI: 10.1016/j.chemosphere.2024.142291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/18/2024] [Accepted: 05/07/2024] [Indexed: 05/19/2024]
Abstract
The development of chitosan-based adsorbents with facile preparation, high adsorption performance and reusability for the removal of contaminant dyes remains a persistent challenge. To overcome this challenge, herein, we have developed a novel and extremely facile one-step strategy by which a new high-performance chitosan/polyethyleneimine/polyethylene glycol diglycidyl ether adsorbent (named as CC/PEI/PGDE) has been successfully fabricated via direct functionalization of CC by PEI at ambient temperature followed by subsequent freeze-drying. The Box-Behnken Design was employed to optimize the concentrations of adsorbent components. Attractively, this adsorbent exhibit outstanding adsorption performances to congo red (RED), acid blue-25 (BLUE) and amino black-10B (BLACK) with 2901 mg g-1 (90.9 %), 3434 mg g-1 (90.9 %), and 1438 mg g-1 (90.1 %) of adsorption capacities (removal efficiencies), respectively, and maintains nearly the same adsorption behaviors to original adsorbent even after 6 cycles of adsorption-desorption processes. Meanwhile, three kinetic models, three isothermal models, and the Vant Hoff model are employed to further investigate the adsorption behaviors of RED, BLUE, and BLACK dyes by CC/PEI/PGDE. The results from SEM, EDS, BET, FT-IR, pHZPC and XPS confirm that hydrogen bond interactions and electrostatic attractions play crucial roles in facilitating dyes adsorption by CC/PEI/PGDE. It is expected that this work can bring forward a new perspective for the facile design of high-performance adsorbent for removing anionic dyes from wastewater.
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Affiliation(s)
- Yao Hui
- School of Chemistry and Chemical Engineering, Henan University of Science and Technology, Luoyang, Henan, 471003, PR China
| | - Rukuan Liu
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha, Hunan, 410004, PR China
| | - Jingwen Lan
- School of Chemistry and Chemical Engineering, Henan University of Science and Technology, Luoyang, Henan, 471003, PR China
| | - Tiantian Sun
- School of Chemistry and Chemical Engineering, Henan University of Science and Technology, Luoyang, Henan, 471003, PR China
| | - Airong Xu
- School of Chemistry and Chemical Engineering, Henan University of Science and Technology, Luoyang, Henan, 471003, PR China.
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Ayach J, Duma L, Badran A, Hijazi A, Martinez A, Bechelany M, Baydoun E, Hamad H. Enhancing Wastewater Depollution: Sustainable Biosorption Using Chemically Modified Chitosan Derivatives for Efficient Removal of Heavy Metals and Dyes. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2724. [PMID: 38893988 PMCID: PMC11173971 DOI: 10.3390/ma17112724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 05/10/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024]
Abstract
Driven by concerns over polluted industrial wastewater, particularly heavy metals and dyes, this study explores biosorption using chemically cross-link chitosan derivatives as a sustainable and cost-effective depollution method. Chitosan cross-linking employs either water-soluble polymers and agents like glutaraldehyde or copolymerization of hydrophilic monomers with a cross-linker. Chemical cross-linking of polymers has emerged as a promising approach to enhance the wet-strength properties of materials. The chitosan thus extracted, as powder or gel, was used to adsorb heavy metals (lead (Pb2+) and copper (Cu2+)) and dyes (methylene blue (MB) and crystal violet (CV)). Extensive analysis of the physicochemical properties of both the powder and hydrogel adsorbents was conducted using a range of analytical techniques, including Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), and scanning electron microscopy (SEM), as well as 1H and 13C nuclear magnetic resonance (NMR). To gain a comprehensive understanding of the sorption process, the effect of contact time, pH, concentration, and temperature was investigated. The adsorption capacity of chitosan powder for Cu(II), Pb(II), methylene blue (MB), and crystal violet (CV) was subsequently determined as follows: 99, 75, 98, and 80%, respectively. In addition, the adsorption capacity of chitosan hydrogel for Cu(II), Pb(II), MB, and CV was as follows: 85, 95, 85, and 98%, respectively. The experimental data obtained were analyzed using the Langmuir, Freundlich, and Dubinin-Radushkevich isotherm models. The isotherm study revealed that the adsorption equilibrium is well fitted to the Freundlich isotherm (R2 = 0.998), and the sorption capacity of both chitosan powder and hydrogel was found to be exceptionally high (approximately 98%) with the adsorbent favoring multilayer adsorption. Besides, Dubinin has given an indication that the sorption process was dominated by Van der Waals physical forces at all studied temperatures.
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Affiliation(s)
- Jana Ayach
- Research Platform for Environmental Science (PRASE), Doctoral School of Science and Technology, Lebanese University, Beirut P.O. Box 657314, Lebanon; (J.A.); (A.H.); (H.H.)
- CNRS, ICMR UMR 7312, University of Reims Champagne-Ardenne, 51687 Reims, France;
| | - Luminita Duma
- CNRS, ICMR UMR 7312, University of Reims Champagne-Ardenne, 51687 Reims, France;
| | - Adnan Badran
- Department of Nutrition, University of Petra, Amman P.O Box 961343, Jordan;
| | - Akram Hijazi
- Research Platform for Environmental Science (PRASE), Doctoral School of Science and Technology, Lebanese University, Beirut P.O. Box 657314, Lebanon; (J.A.); (A.H.); (H.H.)
| | - Agathe Martinez
- CNRS, ICMR UMR 7312, University of Reims Champagne-Ardenne, 51687 Reims, France;
| | - Mikhael Bechelany
- Institut Européen des Membranes (IEM), UMR-5635, University of Montpellier, Centre National de la Recherche Scientifique (CNRS), École Nationale Supérieure de Chimie de Montpellier (ENSCM), Place Eugène Bataillon, 34095 Montpellier, France
- Functional Materials Group, Gulf University for Science and Technology (GUST), Mubarak Al-Abdullah 32093, Kuwait
| | - Elias Baydoun
- Department of Biology, American University of Beirut, Beirut P.O. Box 110236, Lebanon;
| | - Hussein Hamad
- Research Platform for Environmental Science (PRASE), Doctoral School of Science and Technology, Lebanese University, Beirut P.O. Box 657314, Lebanon; (J.A.); (A.H.); (H.H.)
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Rostami MS, Khodaei MM. Recent advances in chitosan-based nanocomposites for adsorption and removal of heavy metal ions. Int J Biol Macromol 2024; 270:132386. [PMID: 38754671 DOI: 10.1016/j.ijbiomac.2024.132386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 04/25/2024] [Accepted: 05/13/2024] [Indexed: 05/18/2024]
Abstract
Due to the high concentration of various toxic and dangerous pollutants, industrial effluents have imposed increasing threats. Among the various processes for wastewater treatment, adsorption is widely used due to its simplicity, good treatment efficiency, availability of a wide range of adsorbents, and cost-effectiveness. Chitosan (CS) has received great attention as a pollutant adsorbent due to its low cost and many -OH and -NH2 functional groups that can bind heavy metal ions. However, weaknesses such as sensitivity to pH, low thermal stability and low mechanical strength, limit the application of CS in wastewater treatment. The modification of these functional groups can improve its performance via cross-linking and grafting agents. The porosity and specific surface area of CS in powder form are not ideal, so physical modification of CS via integration with other materials (e.g., metal oxide, zeolite, clay, etc.) leads to the creation of composite materials with improved absorption performance. This review provides reports on the application of CS and its nanocomposites (NCs) for the removal of various heavy metal ions. Synthesis strategy, adsorption mechanism and influencing factors on sorbents for heavy metals are discussed in detail.
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Affiliation(s)
| | - Mohammad Mehdi Khodaei
- Department of Organic Chemistry, Razi University, 67149-67346 Kermanshah, Iran; Nanoscience and Nanotechnology Research Center, Razi University, 67149-67346 Kermanshah, Iran.
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Malbenia John M, Benettayeb A, Belkacem M, Ruvimbo Mitchel C, Hadj Brahim M, Benettayeb I, Haddou B, Al-Farraj S, Alkahtane AA, Ghosh S, Chia CH, Sillanpaa M, Baigenzhenov O, Hosseini-Bandegharaei A. An overview on the key advantages and limitations of batch and dynamic modes of biosorption of metal ions. CHEMOSPHERE 2024; 357:142051. [PMID: 38648988 DOI: 10.1016/j.chemosphere.2024.142051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 04/08/2024] [Accepted: 04/13/2024] [Indexed: 04/25/2024]
Abstract
Water purification using adsorption is a crucial process for maintaining human life and preserving the environment. Batch and dynamic adsorption modes are two types of water purification processes that are commonly used in various countries due to their simplicity and feasibility on an industrial scale. However, it is important to understand the advantages and limitations of these two adsorption modes in industrial applications. Also, the possibility of using batch mode in industrial scale was scrutinized, along with the necessity of using dynamic mode in such applications. In addition, the reasons for the necessity of performing batch adsorption studies before starting the treatment on an industrial scale were mentioned and discussed. In fact, this review article attempts to throw light on these subjects by comparing the biosorption efficiency of some metals on utilized biosorbents, using both batch and fixed-bed (column) adsorption modes. The comparison is based on the effectiveness of the two processes and the mechanisms involved in the treatment. Parameters such as biosorption capacity, percentage removal, and isotherm models for both batch and column (fixed bed) studies are compared. The article also explains thermodynamic and kinetic models for batch adsorption and discusses breakthrough evaluations in adsorptive column systems. The review highlights the benefits of using convenient batch-wise biosorption in lab-scale studies and the key advantages of column biosorption in industrial applications.
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Affiliation(s)
- Masamvu Malbenia John
- Laboratoire de Génie Chimique et de Catalyse Hétérogène, département de Génie Chimique, Université de Sciences et de la Technologie -Mohamed Boudiaf, USTO-MB, BP 1505, EL-M'NAOUAR, 31000, Oran, Algeria
| | - Asmaa Benettayeb
- Laboratoire de Génie Chimique et de Catalyse Hétérogène, département de Génie Chimique, Université de Sciences et de la Technologie -Mohamed Boudiaf, USTO-MB, BP 1505, EL-M'NAOUAR, 31000, Oran, Algeria.
| | - Mohamed Belkacem
- Laboratoire de Génie Chimique et de Catalyse Hétérogène, département de Génie Chimique, Université de Sciences et de la Technologie -Mohamed Boudiaf, USTO-MB, BP 1505, EL-M'NAOUAR, 31000, Oran, Algeria; Laboratoire Physico-Chimie des Matériaux - Catalyse et Environnement - LPCM-CE, Université des Sciences et de la Technologie d'Oran Mohamed Boudiaf (USTO-MB), BP 1505, El M'naouer, 31000, Oran, Algeria
| | - Chitepo Ruvimbo Mitchel
- Laboratoire de Génie Chimique et de Catalyse Hétérogène, département de Génie Chimique, Université de Sciences et de la Technologie -Mohamed Boudiaf, USTO-MB, BP 1505, EL-M'NAOUAR, 31000, Oran, Algeria
| | - Mustapha Hadj Brahim
- Laboratoire de Génie Chimique et de Catalyse Hétérogène, département de Génie Chimique, Université de Sciences et de la Technologie -Mohamed Boudiaf, USTO-MB, BP 1505, EL-M'NAOUAR, 31000, Oran, Algeria; Laboratoire Physico-Chimie des Matériaux - Catalyse et Environnement - LPCM-CE, Université des Sciences et de la Technologie d'Oran Mohamed Boudiaf (USTO-MB), BP 1505, El M'naouer, 31000, Oran, Algeria
| | - Imene Benettayeb
- Département d'automatique et Informatique Industrielle, Université de Sciences et de la Technologie -Mohamed Boudiaf, USTO-MB, BP 1505, EL-M'NAOUAR, 31000, Oran, Algeria
| | - Boumediene Haddou
- Laboratoire Physico-Chimie des Matériaux - Catalyse et Environnement - LPCM-CE, Université des Sciences et de la Technologie d'Oran Mohamed Boudiaf (USTO-MB), BP 1505, El M'naouer, 31000, Oran, Algeria
| | - Saleh Al-Farraj
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | | | - Soumya Ghosh
- Natural & Medical Sciences Research Center, University of Nizwa, Nizwa, 616, Oman; Department of Genetics, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein 9301, South Africa.
| | - C H Chia
- Department of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Mika Sillanpaa
- Functional Materials Group, Gulf University for Science and Technology, Mubarak Al-Abdullah, 32093, Kuwait, Kuwait; Centre of Research Impact and Outcome, Chitkara University Institute of Engineering and Technology, Chitkara University, Rajpura, 140401, Punjab, India; Division of Research & Development, Lovely Professional University, Phagwara, 144411, Punjab, India; Department of Chemical Engineering, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg, P. O. Box 17011, Doornfontein, 2028, South Africa
| | - Omirserik Baigenzhenov
- Department of Metallurgical Engineering, Satbayev University, Almaty, 050013, Kazakhstan
| | - Ahmad Hosseini-Bandegharaei
- Faculty of Chemistry, Semnan University, Semnan, Iran; Department of Sustainable Engineering, Saveetha School of Engineering, SIMATS, Chennai, 602105, Tamil Nadu, India; Chitkara Centre for Research and Development, Chitkara University, Himachal Pradesh, 174103, India.
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Sun HN, Wang M, Tan HS, Liu HP, Liu M, Li SS. Ratiometric electrochemical immunoassay based on 2D Co/Fe MOF decorated with toluidine blue and Fc-labeled Schiff base for accurate assay of alpha-fetoprotein in clinical serum. Talanta 2024; 273:125876. [PMID: 38458082 DOI: 10.1016/j.talanta.2024.125876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 02/28/2024] [Accepted: 03/03/2024] [Indexed: 03/10/2024]
Abstract
The high level of alpha-fetoprotein (AFP) expression is closely related to hepatocellular carcinoma (HCC). Herein, a dual signal ratiometric electrochemical immunosensor based on chitosan-ferrocenecarboxaldehyde-spindle gold (Chit-Fc-SAu) and Co/Fe metal-organic framework-toluidine blue/polydopamine (Co/Fe MOF-TB/PDA) was proposed for quantitative analysis of AFP. Specifically, Chit-Fc-SAu worked as a substrate to trap more primary antibodies (Ab1) generating the first electrochemical signal from Fc. Thanks to the large specific surface area, the synergistic and electronic effects of Co/Fe MOF nanosheets, and the rich functional groups of PDA, Co/Fe MOF-TB/PDA could load more secondary antibodies (Ab2) and signal molecules (TB) providing another amplified electrochemical signal. In the presence of AFP, Ab1-AFP-Ab2 formed a sandwich structure, and as the AFP concentration increased, the peak current ratio of TB to Fc (ITB/IFc) also increased. The dual signal ratiometric strategy can avoid environmental signal interference and achieve signal self-calibration, thereby improving the accuracy and reproducibility of detection. After a series of exploration, this self-calibrated ratiometric immunosensor exhibited a wide linear range (0.001-200 ng mL-1), a low detection limit (0.34 pg mL-1), and good repeatability. When applied to the assay of clinical serum samples, the detection results of ratiometric sensor were consistent with that of commercial electrochemiluminescence (ECL) immunoassay, significantly superior to that of non-ratiometric sensor. The self-calibrated strategy based on ratiometric sensor helps to improve the accuracy of AFP in clinical diagnosis.
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Affiliation(s)
- He-Nan Sun
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
| | - Miao Wang
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
| | - Hong-Sheng Tan
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
| | - Hui-Ping Liu
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
| | - Mingjun Liu
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao 266003, China
| | - Shan-Shan Li
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao 266071, China.
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Zhang W, Shen L, Xu R, Dong X, Luo S, Gu H, Qin F, Liu H. Effect of biopolymer chitosan on manganese immobilization improvement by microbial‑induced carbonate precipitation. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 279:116496. [PMID: 38816322 DOI: 10.1016/j.ecoenv.2024.116496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 05/18/2024] [Accepted: 05/21/2024] [Indexed: 06/01/2024]
Abstract
Microbially induced carbonate precipitation (MICP), as an eco-friendly and promising technology that can transform free metal ions into stable precipitation, has been extensively used in remediation of heavy metal contamination. However, its depressed efficiency of heavy metal elimination remains in question due to the inhibition effect of heavy metal toxicity on bacterial activity. In this work, an efficient, low-cost manganese (Mn) elimination strategy by coupling MICP with chitosan biopolymer as an additive with reduced treatment time was suggested, optimized, and implemented. The influences of chitosan at different concentrations (0.01, 0.05, 0.10, 0.15 and 0.30 %, w/v) on bacterial growth, enzyme activity, Mn removal efficiency and microstructure properties of the resulting precipitation were investigated. Results showed that Mn content was reduced by 94.5 % within 12 h with 0.15 % chitosan addition through adsorption and biomineralization as MnCO3 (at an initial Mn concentration of 3 mM), demonstrating a two-thirds decrease in remediation time compared to the chitosan-absent system, whereas maximum urease activity increased by ∼50 %. Microstructure analyses indicated that the mineralized precipitates were spherical-shaped MnCO3, and a smaller size and more uniform distribution of MnCO3 is obtained by the regulation of abundant amino and hydroxyl groups in chitosan. These results demonstrate that chitosan accelerates nucleation and tunes the growth of MnCO3 by providing nucleation sites for mineral formation and alleviating the toxicity of metal ions, which has the potential to upgrade MICP process in a sustainable and effective manner. This work provides a reference for further understanding of the biomineralization regulation mechanism, and gives a new perspective into the application of biopolymer-intensified strategies of MICP technology in heavy metal contamination.
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Affiliation(s)
- Wenchao Zhang
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, Jiangsu 215009, China.
| | - Lu Shen
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, Jiangsu 215009, China
| | - Ruyue Xu
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, Jiangsu 215009, China
| | - Xue Dong
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, Jiangsu 215009, China
| | - Shurui Luo
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, Jiangsu 215009, China
| | - Huajie Gu
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, Jiangsu 215009, China
| | - Fenju Qin
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, Jiangsu 215009, China
| | - Hengwei Liu
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, Jiangsu 215009, China.
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18
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Sopanrao KS, Sreedhar I. Sustainable Zn 2+ removal using highly efficient, novel, and cost-effective chitosan-magnetic biochar composite. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-33727-7. [PMID: 38771536 DOI: 10.1007/s11356-024-33727-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 05/15/2024] [Indexed: 05/22/2024]
Abstract
This study focused on the development of a sustainable and low-cost adsorbent derived from the chitosan-biochar composite for the removal of Zn2+ from an aqueous solution. Biochar was prepared from cotton stalk residue by pyrolysis at 600 °C for 2 h, modified with FeCl3, and composed with chitosan in various ratios (1:3, 1:1, 3:1), leading to the formation of an efficient, thermally stable, and rich with functional groups chitosan-biochar composite denoted as CHB-Fe-CS. Functional groups (hydroxyl, carboxyl, and amine) were identified as key contributors to the adsorption mechanism. Langmuir isotherm (R2 = 0.99) and Pseudo-Second order (R2 = 0.99) were best fitted models with the experimental results indicating chemisorption-driven monolayer adsorption. The results revealed CHB-Fe-CS (3:1) composite obtained the highest adsorption capacity of 117.50 mg/g for Zn2+ under optimal conditions viz., 180 min batch time, 500 mg/l metal concentration, 4 g/l adsorbent dosage, 40 °C solution temperature, and 5.0 pH. Regeneration of the used adsorbent was performed using 0.2 mol/l HCl and obtained desorption efficiency of 67.48% and 51.48% after the 4th and 8th cycles. The adsorption mechanisms were dominated by ion exchange, surface complexation, and electrostatic attraction compared to intra-particle diffusion and physisorption. The CHB-Fe-CS demonstrated an economical, environment friendly, and good performing adsorbent for water decontamination.
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Affiliation(s)
- Khandgave Santosh Sopanrao
- Department of Chemical Engineering, Birla Institute of Technology & Science, Pilani Hyderabad Campus, Hyderabad, 500078, India
| | - Inkollu Sreedhar
- Department of Chemical Engineering, Birla Institute of Technology & Science, Pilani Hyderabad Campus, Hyderabad, 500078, India.
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Delgado MZ, Aranda FL, Hernandez-Tenorio F, Garrido-Miranda KA, Meléndrez MF, Palacio DA. Polyelectrolytes for Environmental, Agricultural, and Medical Applications. Polymers (Basel) 2024; 16:1434. [PMID: 38794627 PMCID: PMC11124962 DOI: 10.3390/polym16101434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/25/2024] [Accepted: 04/26/2024] [Indexed: 05/26/2024] Open
Abstract
In recent decades, polyelectrolytes (PELs) have attracted significant interest owing to a surge in research dedicated to the development of new technologies and applications at the biological level. Polyelectrolytes are macromolecules of which a substantial portion of the constituent units contains ionizable or ionic groups. These macromolecules demonstrate varied behaviors across different pH ranges, ionic strengths, and concentrations, making them fascinating subjects within the scientific community. The aim of this review is to present a comprehensive survey of the progress in the application studies of polyelectrolytes and their derivatives in various fields that are vital for the advancement, conservation, and technological progress of the planet, including agriculture, environmental science, and medicine. Through this bibliographic review, we seek to highlight the significance of these materials and their extensive range of applications in modern times.
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Affiliation(s)
- Martina Zuñiga Delgado
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Edmundo Larenas 129, Casilla 160-C, Concepción 4070409, Chile (F.L.A.)
| | - Francisca L. Aranda
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Edmundo Larenas 129, Casilla 160-C, Concepción 4070409, Chile (F.L.A.)
- Department of Materials Engineering (DIMAT), Faculty of Engineering, University of Concepcion, 270 Edmundo Larenas, Box 160-C, Concepcion 4070409, Chile
| | - Fabian Hernandez-Tenorio
- Environmental Processes Research Group, School of Applied Sciences and Engineering, Universidad EAFIT, Medellin 050022, Colombia;
| | - Karla A. Garrido-Miranda
- Scientific and Technological Bioresource Nucleus (BIOREN-UFRO), Universidad de La Frontera, Temuco 4780000, Chile;
| | - Manuel F. Meléndrez
- Facultad de Ciencias para el Cuidado de la Salud, Universidad San Sebastián, Campus Las Tres Pascuales, Lientur 1457, Concepción 4060000, Chile
| | - Daniel A. Palacio
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Edmundo Larenas 129, Casilla 160-C, Concepción 4070409, Chile (F.L.A.)
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20
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Guerrero JD, Arias ER, Gutierrez LB. Enhancing copper and lead adsorption in water by in-situ generation of calcium carbonate on alginate/chitosan biocomposite surfaces. Int J Biol Macromol 2024; 266:131110. [PMID: 38522694 DOI: 10.1016/j.ijbiomac.2024.131110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 02/29/2024] [Accepted: 03/21/2024] [Indexed: 03/26/2024]
Abstract
Chitosan (CS) and sodium alginate (SA)-based biocomposites (CSA) were prepared with the in-situ generation of Calcium Carbonate (CSAX_Ca) through a simple, straightforward, economical, and eco-friendly procedure. Different drying conditions (X) were tested to achieve suitable structural and surface characteristics to enhance adsorption capacity: freeze-dried (L), vacuum-dried with methanol (M), and freeze-dried + vacuum-dried with methanol (LM). Temperature and adsorbent dosage effects on the adsorption capacity of Cu2+ or Pb2+ were examined. Results showed that the higher-yielding biocomposite (CSALM_Ca) exhibited rapid adsorption and good diffusion properties, achieving removal above 90 % within contaminant initial concentration ranges of 10-100 mg/L. At 35 °C, a pseudo-second-order kinetic and the Langmuir model effectively described kinetics and isotherms, revealing maximum adsorption (qe, max) of 429 mgCu2+/L and 1742 mgPb2+/g. Characterization through FTIR, XRD, and SEM of the as-prepared adsorbents confirmed the presence of CaCO3 in vaterite and calcite forms and the influence of drying conditions on the material morphology. Post-adsorption material characterization, in combination with adsorption findings, revealed chemisorption processes involving Ca2+ ion exchange for Cu2+ or Pb2+, resulting in surface-insoluble compounds. The best-performing material showed that after three reuse cycles, the removal of Cu2+ and Pb2+ decreased to 75 % and 62 %, respectively.
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Affiliation(s)
- Jhonnys D Guerrero
- Instituto de Investigaciones en Catálisis y Petroquímica, INCAPE, (FIQ, UNL-CONICET), Santiago del Estero 2829, S3000 Santa Fe, Argentina
| | - Eduardo Rada Arias
- Instituto de Investigaciones en Catálisis y Petroquímica, INCAPE, (FIQ, UNL-CONICET), Santiago del Estero 2829, S3000 Santa Fe, Argentina
| | - Laura B Gutierrez
- Instituto de Investigaciones en Catálisis y Petroquímica, INCAPE, (FIQ, UNL-CONICET), Santiago del Estero 2829, S3000 Santa Fe, Argentina.
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21
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Ibrahim BM, Fakhre NA, Jalhoom MG, Qader IN, Shareef HY, Jalal AF. Removal of lead ions from aqueous solutions by modified cellulose. ENVIRONMENTAL TECHNOLOGY 2024; 45:2335-2347. [PMID: 35306975 DOI: 10.1080/09593330.2022.2056086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 03/09/2022] [Indexed: 06/14/2023]
Abstract
The new adsorbent was prepared by mixing cellulose with dicyclohexyl-18- crown-6 via microwave irradiation method and it was used to remove lead ions from aqueous solution. In contrast to the traditional way (in which grafted polymers are produced by using chemical-free radical producers), this method is rapid, reproducible, and gives a high-quality product. Different physicochemical techniques such as FTIR, SEM, and XRD and TGA were used for the characterization of the produced adsorbent. Based on the ANOVA statistical value, the adsorption of Pb2+ ion onto grafted cellulose has been found to be significant, with very low probability (p) values (<0.001). The pH and initial concentration were observed to be the most significant factors that affected the Pb2+ ion removal from the analysis of variance. Pseudo-second-order and Langmuir equations were applied to the adsorption of Pb2+ ion and under the optimized conditions, the maximum absorption capacity in modified cellulose of Pb2+ was 58.3 mg/g. Various factors which affect metal ion adsorption, including temperature, power of hydrogen, shaking time, adsorbent quantity, and metal ions concentration were studied. More importantly, the adsorbent could be reused by using 0.1 M nitric acid.
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Affiliation(s)
- Bnar M Ibrahim
- Department of Chemistry, College of Science, University of Raparin, Sulaymaneyah, Iraq
| | - Nabil A Fakhre
- Department of Chemistry, College of Education, Salahaddin University, Erbil, Iraq
| | - Moayyed G Jalhoom
- Department of Production Engineering and Minerals, University of Technology, Baghdad, Iraq
| | - Ibrahim Nazem Qader
- Department of Physics, College of Science, University of Raparin, Sulaymaneyah, Iraq
| | - Huda Y Shareef
- Department of Chemistry, College of Education, Salahaddin University, Erbil, Iraq
| | - Aveen F Jalal
- Department of Chemistry, College of Education, Salahaddin University, Erbil, Iraq
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22
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Han J, Zhang H, Fan Y, Zhou L, Zhang Z, Li P, Li Z, Du Y, Meng Q. Progressive Insights into Metal-Organic Frameworks and Metal-Organic Framework-Membrane Composite Systems for Wastewater Management. Molecules 2024; 29:1615. [PMID: 38611894 PMCID: PMC11013246 DOI: 10.3390/molecules29071615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/20/2024] [Accepted: 03/30/2024] [Indexed: 04/14/2024] Open
Abstract
The sustainable management of wastewater through recycling and utilization stands as a pressing concern in the trajectory of societal advancement. Prioritizing the elimination of diverse organic contaminants is paramount in wastewater treatment, garnering significant attention from researchers worldwide. Emerging metal-organic framework materials (MOFs), bridging organic and inorganic attributes, have surfaced as novel adsorbents, showcasing pivotal potential in wastewater remediation. Nevertheless, challenges like limited water stability, elevated dissolution rates, and inadequate hydrophobicity persist in the context of wastewater treatment. To enhance the performance of MOFs, they can be modified through chemical or physical methods, and combined with membrane materials as additives to create membrane composite materials. These membrane composites, derived from MOFs, exhibit remarkable characteristics including enhanced porosity, adjustable pore dimensions, superior permeability, optimal conductivity, and robust water stability. Their ability to effectively sequester organic compounds has spurred significant research in this field. This paper introduces methods for enhancing the performance of MOFs and explores their potential applications in water treatment. It delves into the detailed design, synthesis strategies, and fabrication of composite membranes using MOFs. Furthermore, it focuses on the application prospects, challenges, and opportunities associated with MOF composite membranes in water treatment.
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Affiliation(s)
- Jilong Han
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; (J.H.); (H.Z.); (Y.F.); (L.Z.); (Z.Z.); (P.L.)
| | - Hanya Zhang
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; (J.H.); (H.Z.); (Y.F.); (L.Z.); (Z.Z.); (P.L.)
| | - Yuheng Fan
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; (J.H.); (H.Z.); (Y.F.); (L.Z.); (Z.Z.); (P.L.)
| | - Lilong Zhou
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; (J.H.); (H.Z.); (Y.F.); (L.Z.); (Z.Z.); (P.L.)
| | - Zhikun Zhang
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; (J.H.); (H.Z.); (Y.F.); (L.Z.); (Z.Z.); (P.L.)
| | - Pengfei Li
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; (J.H.); (H.Z.); (Y.F.); (L.Z.); (Z.Z.); (P.L.)
| | - Zhengjie Li
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; (J.H.); (H.Z.); (Y.F.); (L.Z.); (Z.Z.); (P.L.)
| | - Yongsheng Du
- Qinghai Provincial Key Laboratory of Geology and Environment of Salt Lakes, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, China
| | - Qingfen Meng
- Qinghai Qaeidam Xinghua Lithium Salt Co., Ltd., Golmud 817000, China;
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23
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Malik SA, Dar AA, Banday JA. Kinetic and adsorption isotherm studies of Malachite Green dye onto surfactant-tailored alginate hydrogel beads: An influence of surfactant hydrophobicity. Int J Biol Macromol 2024; 263:130318. [PMID: 38408581 DOI: 10.1016/j.ijbiomac.2024.130318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/04/2024] [Accepted: 02/18/2024] [Indexed: 02/28/2024]
Abstract
This study details the synthesis and characterization of surfactant-modified sodium alginate hydrogel beads crosslinked with Ba2+ ions through ionotropic gelation. Cationic surfactants such as, dodecyltrimethylammonium bromide (DTAB), didodecyldimethylammonium bromide (DDAB), and butanediyl-α,ω-bis-(dimethyldodecylammonium bromide) (GEM), were employed in the modification process. The surfactant-modified ALG-DTAB, ALG-DDAB, and ALG-GEM beads were investigated for the removal of cationic dye Malachite Green (MG) to elucidate the impact of hydrophobicity of amphiphiles on the adsorption process. The characterizations were carried out using Rheometry, Field Emission Scanning Electron Microscopy (FESEM), Infrared Spectroscopy (IR), and Energy Dispersive X-ray Spectroscopy (EDX). Under optimized conditions, ALG-GEM and ALG-DDAB demonstrated highest maximum adsorption capacity (Qmax > 700 mgg-1). The adsorption data fitted well to pseudo-second order kinetic and Langmuir adsorption models, suggesting the involvement of chemisorption phenomena with notable contributions from pore diffusion. The effects of pH, initial dye concentration, adsorbent dose, temperature, and competing ions on the removal of MG were investigated. Interestingly, ALG-GEM beads exhibited an increase in adsorption capacity with rising pH and a subsequent decrease with increasing temperature, showcasing optimal adsorption at pH 7.0 and 25 °C. The study proposes that ALG beads modified with cationic surfactants with higher hydrophobicity could offer a promising avenue in wastewater treatment processes.
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Affiliation(s)
- Sohail Amin Malik
- Department of Chemistry, National Institute of Technology, Hazratbal, Srinagar 190006, J&K, India; Soft matter Research Group, Physical Chemistry Section, Department of Chemistry, University of Kashmir, Hazratbal, Srinagar 190006, J&K, India
| | - Aijaz Ahmad Dar
- Soft matter Research Group, Physical Chemistry Section, Department of Chemistry, University of Kashmir, Hazratbal, Srinagar 190006, J&K, India.
| | - Javid Ahmad Banday
- Department of Chemistry, National Institute of Technology, Hazratbal, Srinagar 190006, J&K, India.
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24
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Liu X, Wang Y, Wu X, Wang Y, Fan G, Huang Y, Zhang L. Preparation of magnetic DTPA-modified chitosan composite microspheres for enhanced adsorption of Pb(II) from aqueous solution. Int J Biol Macromol 2024; 264:130410. [PMID: 38417751 DOI: 10.1016/j.ijbiomac.2024.130410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/06/2024] [Accepted: 02/21/2024] [Indexed: 03/01/2024]
Abstract
In this study, magnetic DTPA-modified chitosan composite microspheres (MDCM) were prepared by reverse emulsion-double crosslinking method (carbodiimide followed by glutaraldehyde) for removal of Pb(II) from aqueous solution. The obtained magnetic adsorbents were characterized by FTIR, SEM, XRD, VSM, BET, and 13C NMR. The effects of the pH, contact time, initial concentration, and competitive metal cations (Na(I), Ca(II), or Mg(II)) on Pb(II) adsorption were investigated. The results revealed that MDCM exhibited high removal performance over a wide pH range and in the presence of competitive metal cations. The maximum adsorption capacity of MDCM for Pb(II) is 214.63 mg g-1 at pH 3, which is higher than most recently reported magnetic adsorbents. Adsorption kinetics and isotherms can be described by the pseudo-second-order model and Langmuir model, respectively. In addition, MDCM is easy to regenerate and can be reused five cycles with high adsorption capacity. Finally, the adsorption mechanism was further revealed by FTIR and XPS analysis. Overall, MDCM has practical application potential in removing Pb(II) from contaminated wastewater due to its high adsorption efficiency, good reusability, and convenient magnetic separation.
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Affiliation(s)
- Xueling Liu
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
| | - Yajing Wang
- Hubei Provincial Academy of Eco-environmental Sciences, Wuhan 430072, PR China
| | - Xiaofen Wu
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
| | - Yi Wang
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
| | - Guozhi Fan
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
| | - Yanjun Huang
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China.
| | - Lei Zhang
- School of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China.
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25
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Venkatrajan G, Venkatesan J, Madankumar N, Nirmala, Pushparaju S. Effective chromium removal of metal anchored alginate-chitosan binary bio-composites. Int J Biol Macromol 2024; 264:130408. [PMID: 38417764 DOI: 10.1016/j.ijbiomac.2024.130408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 02/07/2024] [Accepted: 02/21/2024] [Indexed: 03/01/2024]
Abstract
Water is the most essential resource for the biotic and abiotic components of an ecosystem. Any change in the quality of this water may cause adverse impact on the ecosystem. Hexavalent chromium is one such important pollutant that gets exposed in the water mainly through anthropogenic processes. Adsorption is considered to be an effective, economic and easiest method for remediation of such pollutants. Amongst the innumerable adsorbents available, biopolymers fetch the interest due to its cost effectiveness, efficiency and biocompatibility. But, the mechanical strength and workability of such biopolymers makes it unfit to use as an adsorbent. To improve these drawbacks, synthesis of biopolymeric composites become the need of the hour. So, an attempt was made here to synthesize metal cross-linked binary bio-composites using Alginate and Chitosan polymer matrix. Synthesized bio-composites were characterised with the aid of FTIR, XPS, Thermal analysis, SEM with EDAX and subjected for hexavalent chromium removal from water. Analysis of variance (ANOVA) with 95 % confidence intervals was used to assess the significance of independent variables and their interactions. Adsorption studies were done using batch process and to achieve greater sorption, various influencing parameters were optimized one by one. While investigating one parameter, other parameters were kept unaltered. Optimization was done for the parameters like contact time, dosage of the adsorbent, pH of the medium and presence of co-ions. Contact time and dosage for all the composites was 30 mins and 0.1 g respectively. Amongst the composites, Zirconium loaded binary composite possess high sorption capacity of around 14.8 mg/g. While Calcium and Iron loaded composites exhibit sorption capacity of around 9.8 mg/g and 10.4 mg/g respectively. Presence of other co-ions in the medium doesn't affect the sorption process. Isothermal studies infer the adsorption follows Langmuir model and thermodynamic parameters concludes the endothermic and randomness of the adsorption. The bio-composites can be recycled and used upto three cycles. Field trial was conducted and the composites work well in such conditions.
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Affiliation(s)
- Gopalakannan Venkatrajan
- PG & Research department of Chemistry, J.K.K. Nataraja College of Arts and Science, Komarapalayam, Namakkal, Tamil Nadu, India.
| | - Janarthanan Venkatesan
- PG & Research department of Chemistry, J.K.K. Nataraja College of Arts and Science, Komarapalayam, Namakkal, Tamil Nadu, India
| | - Natarajan Madankumar
- PG & Research department of Chemistry, J.K.K. Nataraja College of Arts and Science, Komarapalayam, Namakkal, Tamil Nadu, India
| | - Nirmala
- PG & Research department of Chemistry, J.K.K. Nataraja College of Arts and Science, Komarapalayam, Namakkal, Tamil Nadu, India
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26
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Bruno de Oliveira Silva M, Barcelos da Costa T, Camani PH, Dos Santos Rosa D. Chitosan-based foam composites for hexavalent chromium remediation: Effect of microcellulose and crosslinking agent content. Int J Biol Macromol 2024; 264:130446. [PMID: 38423428 DOI: 10.1016/j.ijbiomac.2024.130446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 01/18/2024] [Accepted: 02/23/2024] [Indexed: 03/02/2024]
Abstract
Potentially toxic metal ions, such as hexavalent chromium (Cr6+), present in water concern the population's health due to their persistence, bioaccumulation potential, and high toxicity. Highly porous materials based on polysaccharides are promising technologies for metal removal due to their high surface area, biodegradability, and low toxicity. This study evaluated the effect of concentrations of microcellulose (0.5, 1, and 1.5 %) and glutaraldehyde (1, 2, and 3 %) in the adsorption capacity and mechanical properties of chitosan foams. The developed foams exhibited a three-dimensional structure with interconnected pores. Compared to foams without microcellulose, adding 1.5 % microcellulose increased up to 180 % in maximum stress supported by the foams and up to 135 % in Young's modulus. However, Cr6+ sorption capacity decreased with increasing microcellulose and crosslinking agent content due to the occupation of amino groups. Still, the foams exhibited a highly favorable sorption behavior, and the Sips isotherm model provided the best fit to the experimental data. The maximum sorption capacity reached approximately 1.4 mmol·g-1 at pH 4.0 and 25 °C. The foam structural integrity, enhanced mechanical properties, and efficient sorption capacity make them viable alternatives for environmentally friendly and cost-effective treatment of water contaminated with Cr6+ ions.
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Affiliation(s)
- Marcelo Bruno de Oliveira Silva
- Center for Engineering, Modelling and Applied Social Sciences (CECS), Federal University of ABC (UFABC), Santo André, São Paulo, Brazil.
| | - Talles Barcelos da Costa
- Center for Engineering, Modelling and Applied Social Sciences (CECS), Federal University of ABC (UFABC), Santo André, São Paulo, Brazil
| | - Paulo Henrique Camani
- Center for Engineering, Modelling and Applied Social Sciences (CECS), Federal University of ABC (UFABC), Santo André, São Paulo, Brazil
| | - Derval Dos Santos Rosa
- Center for Engineering, Modelling and Applied Social Sciences (CECS), Federal University of ABC (UFABC), Santo André, São Paulo, Brazil.
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27
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Shao Z, Jiang X, Lin Q, Wu S, Zhao S, Sun X, Cheng Y, Fang Y, Li P. Nano‑selenium functionalized chitosan gel beads for Hg(II) removal from apple juice. Int J Biol Macromol 2024; 261:129900. [PMID: 38316329 DOI: 10.1016/j.ijbiomac.2024.129900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 01/07/2024] [Accepted: 01/30/2024] [Indexed: 02/07/2024]
Abstract
The presence of potentially toxic elements and compounds poses threats to the quality and safety of fruit juices. Among these, Hg(II) is considered as one of the most poisonous heavy metals to human health. Traditional chitosan-based and selenide-based adsorbents face challenges such as poor adsorption capacity and inconvenient separation in juice applications. In this study, we prepared nano‑selenium functionalized chitosan gel beads (nanoSe@CBs) and illustrated the synergistic promotions between chitosan and nanoSe in removing Hg(II) from apple juice. The preparation conditions, adsorption behaviors, and adsorption mechanism of nanoSe@CBs were systematically investigated. The results revealed that the adsorption process was primarily controlled by chemical adsorption. At the 0.1 % dosage, the adsorbent exhibited high uptake, and the maximum adsorption capacity from the Langmuir isotherm model could reach 376.5 mg/g at room temperature. The adsorbent maintained high adsorption efficiency (> 90 %) across a wide range of Hg(II) concentrations (0.01 to 10 mg/L) and was unaffected by organic acids present in apple juice. Additionally, nanoSe@CBs showed negligible effects on the quality of apple juice. Overall, nanoSe@CBs open up possibilities to be used as a safe, low-cost and highly-efficient adsorbent for the removal of Hg(II) from juices and other liquid foods.
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Affiliation(s)
- Zhiying Shao
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, China; Key Laboratory of Modern Agriculture Equipment and Technology, School of Agricultural Engineering, Jiangsu University, Zhenjiang, China
| | - Xiaoyi Jiang
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, China
| | - Qinlu Lin
- College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, China
| | - Simiao Wu
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, China
| | - Siming Zhao
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Xinyang Sun
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, China
| | - Yunhui Cheng
- College of Chemistry and Food Engineering, Changsha University of Science & Technology, Changsha, China
| | - Yong Fang
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, China
| | - Peng Li
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, China.
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28
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Jiang C, Zhang S, Zhang T. Static and dynamic adsorption of arsenate from water by Fe 3+ complexed with 3-aminopropyltriethoxysilane-modified carboxymethyl chitosan. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:21430-21441. [PMID: 38393569 DOI: 10.1007/s11356-024-32524-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Accepted: 02/14/2024] [Indexed: 02/25/2024]
Abstract
Fe3+ complexed with 3-aminopropyltriethoxysilane (APTES)-modified carboxymethyl chitosan (CMC) named Fe-ACMC was synthesized by a one-step method at room temperature and pressure. The surface morphology and chemical structure of Fe-ACMC were characterized by SEM-EDS, XRD, BET, FT-IR, XPS, and ζ-potential. In batch adsorption, the optimum pH for arsenate [As(V)] adsorption onto Fe-ACMC was 3-9 with removal efficiency > 99%. The adsorption of As(V) could reach equilibrium within 25 min and the maximum adsorption capacity was 84.18 mg g-1. The pseudo-second-order model fitted well the kinetic data (R2 = 0.995), while the Freundlich model well described the adsorption isotherm of As(V) on Fe-ACMC (R2 = 0.979). The co-existing anions (NO3-, CO32-, and SO42-) exhibited a slight impact on the As(V) adsorption efficiency, whereas PO43- inhibited As(V) adsorption on Fe-ACMC. The real applicability of Fe-ACMC was achieved to remove ca. 10.0 mg L-1 of As(V) from natural waters to below 0.05 mg L-1. The regeneration and reuse of Fe-ACMC for As(V) adsorption were achieved by adding 0.2 mol L-1 HCl. The main adsorption mechanism of As(V) on Fe-ACMC was attributed to electrostatic attraction and inner-sphere complexation between -NH2···Fe3+ and As(V). In fixed-bed column adsorption, the Thomas model was the most suitable model to elucidate the dynamic adsorption behavior of As(V). The loading capacity of the Fe-ACMC packed column for As(V) was 47.04 mg g-1 at pH 7 with an initial concentration of 60 mg L-1, flow rate of 3 mL min-1, and bed height of 0.6 cm.
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Affiliation(s)
- Changjin Jiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan, People's Republic of China
| | - Shuang Zhang
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan, People's Republic of China
| | - Ting Zhang
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan, People's Republic of China.
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29
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Su Y, Yang D, Wang Y, Ding J, Ding L, Song D. The construction of highly selective surface molecularly imprinted polymers based on Cu(II) coordination for the detection of bisphenol A. Talanta 2024; 269:125441. [PMID: 38029605 DOI: 10.1016/j.talanta.2023.125441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 11/15/2023] [Accepted: 11/18/2023] [Indexed: 12/01/2023]
Abstract
Herein, we designed and constructed a highly selective MIPs for bisphenol A (BPA) named Cu-MIPs@CS based on Cu(II) coordination. The synthesis of Cu-MIPs@CS employed a dummy template strategy and surface imprinting technology, with chitosan (CS) as the substrate linked to imprinted layers via Cu2+ bridging. 4-vinylpyridine acted as the functional monomer, capable of forming a complex with the template ketoprofen, while ethylene glycol dimethacrylate served as the cross linker. Cu-MIPs@CS exhibited a significantly enhanced imprinting factor of 14.78 for BPA, which was approximately 6.6 times higher than that of imprinted materials without Cu2+ (MIPs@CS). Cu-MIPs@CS exhibited a selective factor of 12.74 towards resorcinol, which possessed identical functional groups but a smaller size than BPA, representing an enhancement of selectivity by 12.25-fold compared to MIPs@CS. More importantly, Cu-MIPs@CS exhibited a superior discrimination ability between BPA and its structural analogue, diphenolic acid, with an excellent selective factor of 2.93, highlighting its significance in distinguish the structural analogue of BPA. In contrast, MIPs@CS lack sufficient selectivity to differentiate between them. Through exploration of adsorption mechanism of Cu-MIPs@CS, it was demonstrated that the incorporation of Cu2+ significantly reduced nonspecific adsorption, but also facilitated the creation of more selective imprinted cavities by introducing metal coordination, thereby notably enhancing the selectivity of Cu-MIPs@CS. Finally, the developed Cu-MIPs@CS were applied as the solid phase extraction adsorbent and combined with HPLC-DAD detection to establish an analytical method towards BPA in drinking water samples. The limit of detection of the method was 0.14 μg L-1 and recoveries ranged from 95.6 % to 101 %. This work provided broad prospects for construction of highly selective MIPs and accurate quantification of trace amounts of BPA.
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Affiliation(s)
- Yu Su
- College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, China
| | - Dandan Yang
- College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, China
| | - Yanjie Wang
- College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, China
| | - Jie Ding
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Lan Ding
- College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, China; College of Chemistry, Jilin Province Research Center for Engineering and Technology of Spectral Analytical Instruments, Jilin University, Qianjin Street 2699, Changchun 130012, China.
| | - Daqian Song
- College of Chemistry, Jilin Province Research Center for Engineering and Technology of Spectral Analytical Instruments, Jilin University, Qianjin Street 2699, Changchun 130012, China
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30
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Zhu D, Zhu J, Li P, Lan S. Effects of magnesium hydroxide morphology on Pb(ii) removal from aqueous solutions. RSC Adv 2024; 14:7329-7337. [PMID: 38433932 PMCID: PMC10905668 DOI: 10.1039/d3ra08040d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 02/28/2024] [Indexed: 03/05/2024] Open
Abstract
In this study, magnesium hydroxide (MH) particles with distinct morphologies were obtained through direct precipitation and subsequent hydrothermal treatment with various magnesium salts. The synthesized products were systematically characterized and utilized for the removal of Pb(ii) ions from aqueous solutions. The adsorption process of Pb(ii) by two different MH structures, namely flower globular magnesium hydroxide (FGMH) and hexagonal plate magnesium hydroxide (HPMH), adhered to the Langmuir isotherm and pseudo-second-order model. FGMH exhibited higher Pb(ii) removal capacity (2612 mg g-1) than HPMH (1431 mg g-1), attributable to the unique three-dimensional layered structures of FGMH that provide a larger surface area and abundant active sites. Additionally, metallic Pb was obtained by recycling the adsorbed Pb(ii) through acid dissolution-electrolysis. Furthermore, Pb(ii) removal mechanisms were investigated by analyzing adsorption kinetics and isotherms, and the adsorbed products were characterized. Based on the findings, the removal process occurs in two key stages. First, Pb(ii) ions bind with OH- ions on the surface upon diffusing to the MH surface, resulting in Pb(OH)2 deposits in situ. Concurrently, Mg(ii) ions diffuse into the solution, substituting Pb(ii) ions in the MH lattice. Second, the resultant Pb(OH)2, which is unstable, reacts with CO2 dissolved in water to yield Pb3(CO3)2(OH)2. Therefore, owing to its outstanding Pb(ii) adsorption performance and simple preparation method, FGMH is a promising solution for Pb(ii) pollution.
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Affiliation(s)
- Donghai Zhu
- State Key Laboratory of Plateau Ecology and Agriculture, School of Chemical Engineering, Qinghai University Xining 810016 PR China
| | - Jiachen Zhu
- State Key Laboratory of Plateau Ecology and Agriculture, School of Chemical Engineering, Qinghai University Xining 810016 PR China
| | - Ping Li
- State Key Laboratory of Plateau Ecology and Agriculture, School of Chemical Engineering, Qinghai University Xining 810016 PR China
| | - Shengjie Lan
- State Key Laboratory of Plateau Ecology and Agriculture, School of Chemical Engineering, Qinghai University Xining 810016 PR China
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Miron A, Iordache TV, Valente AJM, Durães LMR, Sarbu A, Ivan GR, Zaharia A, Sandu T, Iovu H, Chiriac AL. Chitosan-Based Beads Incorporating Inorganic-Organic Composites for Copper Ion Retention in Aqueous Solutions. Int J Mol Sci 2024; 25:2411. [PMID: 38397088 PMCID: PMC10889537 DOI: 10.3390/ijms25042411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 02/12/2024] [Accepted: 02/14/2024] [Indexed: 02/25/2024] Open
Abstract
In recent years, there has been a challenging interest in developing low-cost biopolymeric materials for wastewater treatment. In the present work, new adsorbents, based on different types of chitosan (commercial, commercial chitin-derived chitosan and chitosan synthesized from shrimp shell waste) and inorganic-organic composites have been evaluated for copper ions removal. The efficacy of the synthesis of chitosan-based composite beads has been determined by studying various characteristics using several techniques, including FTIR spectroscopy, X-ray diffraction, porosimetry (N2 adsorption), and scanning electron microscopy (SEM). Adsorption kinetics was performed using different adsorption models to determine the adsorption behavior of the materials in the aqueous media. For all composite beads, regardless of the type of chitosan used, good capacity to remove copper ions from simulated waters was observed (up to 17 mg/g), which proves that the new materials hold potential for heavy metal retention. However, the adsorption efficiency was influenced by the type of chitosan used. Thus, for the series where commercial chitosan (CC) was used, the removal efficiency was approximately 29%; for the series with chitosan obtained from commercial chitin (SC), the removal efficiency was approximately 34%; for the series with chitosan enriched with CaCO3 (SH), the removal efficiency was approximately 52%.
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Affiliation(s)
- Andreea Miron
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania; (A.M.); (T.-V.I.); (A.S.); (G.R.I.); (A.Z.); (T.S.)
- Advanced Polymer Materials Group, National University of Science and Technology Politehnica Bucharest, 1–7 Gh. Polizu Street, 011061 Bucharest, Romania;
| | - Tanta-Verona Iordache
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania; (A.M.); (T.-V.I.); (A.S.); (G.R.I.); (A.Z.); (T.S.)
| | - Artur J. M. Valente
- CQC-IMS, Department of Chemistry, University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal;
| | - Luisa Maria Rocha Durães
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima, 3030-790 Coimbra, Portugal;
| | - Andrei Sarbu
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania; (A.M.); (T.-V.I.); (A.S.); (G.R.I.); (A.Z.); (T.S.)
| | - Georgeta Ramona Ivan
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania; (A.M.); (T.-V.I.); (A.S.); (G.R.I.); (A.Z.); (T.S.)
| | - Anamaria Zaharia
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania; (A.M.); (T.-V.I.); (A.S.); (G.R.I.); (A.Z.); (T.S.)
| | - Teodor Sandu
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania; (A.M.); (T.-V.I.); (A.S.); (G.R.I.); (A.Z.); (T.S.)
| | - Horia Iovu
- Advanced Polymer Materials Group, National University of Science and Technology Politehnica Bucharest, 1–7 Gh. Polizu Street, 011061 Bucharest, Romania;
| | - Anita-Laura Chiriac
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania; (A.M.); (T.-V.I.); (A.S.); (G.R.I.); (A.Z.); (T.S.)
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Lujanienė G, Novikau R, Karalevičiūtė K, Pakštas V, Talaikis M, Levinskaitė L, Selskienė A, Selskis A, Mažeika J, Jokšas K. Chitosan-minerals-based composites for adsorption of caesium, cobalt and europium. JOURNAL OF HAZARDOUS MATERIALS 2024; 462:132747. [PMID: 37837775 DOI: 10.1016/j.jhazmat.2023.132747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/18/2023] [Accepted: 10/07/2023] [Indexed: 10/16/2023]
Abstract
Currently, there is a growing interest in the use of natural materials in various fields of science, technology and environmental protection due to their availability, low-cost, non-toxicity and biodegradability. Chitosan, natural clay of local origin, montmorillonite, zeolite, cross-linking agents (epichlorohydrin, sodium tripolyphosphate, glutaraldehyde) and plasticisers (glycerol) were used to synthesise composites. The composites were characterised by attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), X-ray diffraction analysis (XRD) and scanning electron microscope (SEM), tested for their antibacterial activity and used in batch experiments to study the adsorption of caesium, cobalt and europium ions. The maximum capacities for adsorption of caesium, cobalt and europium on the composites were 1400 mg/g, 900 mg/g and 18 mg/g, respectively. The experimental data fit better the Langmuir isotherm model and indicate favourable monolayer adsorption of Cs+, Co2+ and Eu3+ at homogeneous sites of the composites. The experimental data were in better agreement with the pseudo-second-order non-linear kinetic model for most elements and adsorbents. Adaptive neuro-fuzzy inference system proved to be a practical tool with good performance and generalisation capability for predicting the adsorption capacity of composites for caesium, cobalt, and europium ions. It was found that the predicted data were very close to the experimental data.
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Affiliation(s)
- Galina Lujanienė
- Center for Physical Sciences and Technology (FTMC), Savanorių Str. 231, LT-02300 Vilnius, Lithuania.
| | - Raman Novikau
- Center for Physical Sciences and Technology (FTMC), Savanorių Str. 231, LT-02300 Vilnius, Lithuania
| | - Karolina Karalevičiūtė
- Center for Physical Sciences and Technology (FTMC), Savanorių Str. 231, LT-02300 Vilnius, Lithuania
| | - Vidas Pakštas
- Center for Physical Sciences and Technology (FTMC), Savanorių Str. 231, LT-02300 Vilnius, Lithuania
| | - Martynas Talaikis
- Center for Physical Sciences and Technology (FTMC), Savanorių Str. 231, LT-02300 Vilnius, Lithuania
| | | | - Aušra Selskienė
- Center for Physical Sciences and Technology (FTMC), Savanorių Str. 231, LT-02300 Vilnius, Lithuania
| | - Algirdas Selskis
- Center for Physical Sciences and Technology (FTMC), Savanorių Str. 231, LT-02300 Vilnius, Lithuania
| | - Jonas Mažeika
- Nature Research Centre, Akademijos Str. 2, LT-08412 Vilnius, Lithuania
| | - Kęstutis Jokšas
- Nature Research Centre, Akademijos Str. 2, LT-08412 Vilnius, Lithuania
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Rehman A, Naeem A, Ahmad I, Fozia F, Almutairi MH, Aslam M, Israr M, Almutairi BO, Ullah Z. Synthesis of Plant-Mediated Iron Oxide Nanoparticles and Optimization of Chemically Modified Activated Carbon Adsorbents for Removal of As, Pb, and Cd Ions from Wastewater. ACS OMEGA 2024; 9:317-329. [PMID: 38222602 PMCID: PMC10785089 DOI: 10.1021/acsomega.3c05299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 11/15/2023] [Accepted: 11/16/2023] [Indexed: 01/16/2024]
Abstract
This research study was designed with the aim to prepare plant extract-mediated iron oxide nanoparticles (IONPs) and different chemically modified carbon adsorbents from the Parthenium hysterophorus plant and then optimize the carbon adsorbents by evaluating their adsorption applications in wastewater for the selected metal ions like arsenic (As3+), lead (Pb2+), and cadmium (Cd2+). The Fourier transform infrared spectroscopy (FTIR) technique was used to highlight functional groups in plant-mediated IONPs and chemically modified carbon adsorbents. A scanning electron microscopy study was conducted to explain the surface morphology of the adsorbents. Energy-dispersive X-rays was used for elemental analysis and X-ray diffraction for particle size and crystallinity of the adsorbents. From the study, it was found that the best optimum conditions were pH = 5-6, initial concentration of adsorbate of 10 mg/L, dose of adsorbent of 0.01 g, contact time of 90-120 min of adsorbent and adsorbate, and temperature of 25 °C. At optimum conditions, the adsorption capacities of IONPs for arsenic (As) 144.7 mg/g, lead (Pb) 128.01 mg/g, and cadmium (Cd) ions 122.1 mg/g were recorded. The activated carbon at optimum conditions showed adsorption capacities of 46.35 mg/g for As, 121.95 mg/g for Pb, and 113.25 mg/g for Cd ion. At equilibrium, Langmuir, Freundlich Temkin, and Dubinin-Radushkevich isotherms were applied on the experimental adsorption data having the best R2 values (0.973-0.999) by the Langmuir isotherm. High-correlation coefficient R2 values (0.996-0.999) were obtained from the pseudo-second-order for all cases, showing that the adsorption process proceeds through pseudo second-order kinetics. The apparent adsorption energy E value was in the range of 0.24-2.36 kJ/mol. The adsorption capacity of regenerated IONPs for As gradually decreased from 144.8 to 45.67 mg/g, for lead 128.15 to 41.65 mg/g, and cadmium from 122.10 to 31.20 mg/g in 5 consecutive cycles. The study showed that the synthesized IONPs and acid-activated carbon adsorbent were successfully used to remove selected metal ions from wastewater.
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Affiliation(s)
- Ali Rehman
- Department
of Chemistry, Kohat University of Science
& Technology, Kohat 26000, Pakistan
| | - Abdul Naeem
- National
Center of Excellence in Physical Chemistry, University of Peshawar, Peshawar 25120, Pakistan
| | - Ijaz Ahmad
- Department
of Chemistry, Kohat University of Science
& Technology, Kohat 26000, Pakistan
| | - Fozia Fozia
- Biochemistry
Department, Khyber Medical University Institute
of Dental Sciences, Kohat 26000, Pakistan
| | - Mikhlid H. Almutairi
- Zoology
Department, College of Science, King Saud
University, P.O. Box: 2455, Riyadh 11451, Saudi Arabia
| | - Madeeha Aslam
- Department
of Chemistry, Kohat University of Science
& Technology, Kohat 26000, Pakistan
| | - Muhammad Israr
- Department
of Chemistry, Kohat University of Science
& Technology, Kohat 26000, Pakistan
| | - Bader O. Almutairi
- Zoology
Department, College of Science, King Saud
University, P.O. Box: 2455, Riyadh 11451, Saudi Arabia
| | - Zia Ullah
- College
of Professional Studies, Northeastern University, Boston, Massachusetts 02115, United States
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Vishnupriya C, Mohamedrizwan K, Arya PR, Vijayakumar S, Kavitha R. Evaluation of heavy metal removal and antibiofilm efficiency of biologically synthesized chitosan- silver Nano-bio composite by a soil actinobacterium Glutamicibacter uratoxydans VRAK 24. Int J Biol Macromol 2024; 255:128032. [PMID: 37977462 DOI: 10.1016/j.ijbiomac.2023.128032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 11/02/2023] [Accepted: 11/09/2023] [Indexed: 11/19/2023]
Abstract
Biological synthesis of nanoparticles is cost-effective as well as safer than physical and chemical methods. This study focuses on the biological synthesis of silver nanoparticles using Glutamicibacter uratoxydans which remains still unexplored. The synthesized silver nanoparticles are encapsulated with chitosan to prepare nanobiocomposite. Actinobacteria were isolated from mesophilic soil and screened for heavy metal resistance. The potent heavy metal resistant isolate was identified by 16SrRNA sequencing and used for the biological synthesis of silver particles. The characterization of chitosan- silver nano-bio composite was carried out by UV-Vis spectroscopy, FTIR spectroscopy, and XRD. Morphology was analyzed by scanning electron microscopy. The particle size and stability were studied using Dynamic light scattering and Zeta potential analysis. The nano-bio composite was tested for lead removal efficiency and antibiofilm activity. The potent isolate was identified as Glutamicibacter uratoxydans and it was named as Glutamicibacter uratoxydans VRAK 24. The UV spectra showed maximum absorbance at 410 nm. The FTIR spectra and XRD confirmed chitosan encapsulation with silver nanoparticle. The size of nanobiocomposite was found to be 0.376. The stability of nanobiocomposite recorded a zeta potential value of -5.37 mV. The lead removal efficiency was found to be 87.69 %. In addition, the nanobiocomposite exhibited highest anti-biofilm activity against S.aureus when compared to E.coli. The research findings, concluded that the synthesized nanobiocomposite showed better anti-biofilm activity. Also, nanobiocomposite was found to be a good adsorbent for the removal of heavy metal lead.
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Affiliation(s)
- Chandrasekaran Vishnupriya
- Biomedical and Microbial Research Laboratory, Department of Biochemistry, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India
| | - Kadersulthan Mohamedrizwan
- Biomedical and Microbial Research Laboratory, Department of Biochemistry, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India
| | - P R Arya
- Biomedical and Microbial Research Laboratory, Department of Biochemistry, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India
| | | | - Rangasamy Kavitha
- Biomedical and Microbial Research Laboratory, Department of Biochemistry, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India.
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Meetam P, Phonlakan K, Nijpanich S, Budsombat S. Chitosan-grafted hydrogels for heavy metal ion adsorption and catalytic reduction of nitroaromatic pollutants and dyes. Int J Biol Macromol 2024; 255:128261. [PMID: 37992945 DOI: 10.1016/j.ijbiomac.2023.128261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/20/2023] [Accepted: 11/17/2023] [Indexed: 11/24/2023]
Abstract
Chitosan-grafted-poly(acrylic acid) (CS-g-PAA) and chitosan-grafted- poly(2-acrylamido-2-methyl-1-propanesulfonic acid) (CS-g-P(AA-co-AMPS)) hydrogels were synthesized and then employed as adsorbents for the effective removal of Cu2+ and other heavy metal ions. The effect of hydrogel's composition on the Cu2+ adsorption was explored. The CS-g-PAA hydrogel demonstrated a superior adsorption capacity compared to pristine CS, PAA hydrogel, and CS-g-P(AA-co-AMPS) hydrogels. The adsorption followed the Langmuir isotherm model, and the pseudo-second order kinetic model. Additionally, the CS-g-PAA hydrogel exhibited relatively high adsorption performances toward Cr3+, Co2+, Ni2+, Pb2+, and Zn2+. Metal ions adsorbed within CS-g-PAA hydrogels underwent reduction to their corresponding metallic states and were reutilized as catalysts for the reduction of 4-nitrophenol. The comparative catalytic performances of the metal species in the hydrogel were in the order of Cu > Ni > Co > Zn. The reduction efficiency of Cu-CS-g-PAA increased with increased catalyst dosage, NaBH4 concentration, and temperature. A very low activation energy of 3.7 kJ/mol was observed. The catalyst maintained high catalytic performance even when subjected to real water samples and proved its reusability for up to three cycles. Moreover, the catalyst could effectively reduce 2-nitrophenol and methyl orange.
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Affiliation(s)
- Panjalak Meetam
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Materials Chemistry Research Center, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Kunlarat Phonlakan
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Materials Chemistry Research Center, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Supinya Nijpanich
- Synchrotron Light Research Institute (Public organization), Nakhon Ratchasima 30000, Thailand
| | - Surangkhana Budsombat
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Materials Chemistry Research Center, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.
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Jiang R, Zhu HY, Zang X, Fu YQ, Jiang ST, Li JB, Wang Q. A review on chitosan/metal oxide nanocomposites for applications in environmental remediation. Int J Biol Macromol 2024; 254:127887. [PMID: 37935288 DOI: 10.1016/j.ijbiomac.2023.127887] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 10/28/2023] [Accepted: 11/02/2023] [Indexed: 11/09/2023]
Abstract
A cleaner and safer environment is one of the most important requirements in the future. It has become increasingly urgent and important to fabricate novel environmentally-friendly materials to remove various hazardous pollutants. Compared with traditional materials, chitosan is a more environmentally friendly material due to its abundance, biocompatibility, biodegradability, film-forming ability and hydrophilicity. As an abundant of -NH2 and -OH groups on chitosan molecular chain could chelate with all kinds of metal ions efficiently, chitosan-based materials hold great potential as a versatile supporting matrix for metal oxide nanomaterials (MONMs) (TiO2, ZnO, SnO2, Fe3O4, etc.). Recently, many chitosan/metal oxide nanomaterials (CS/MONMs) have been reported as adsorbents, photocatalysts, heterogeneous Fenton-like agents, and sensors for potential and practical applications in environmental remediation and monitoring. This review analyzed and summarized the recent advances in CS/MONMs composites, which will provide plentiful and meaningful information on the preparation and application of CS/MONMs composites for wastewater treatment and help researchers to better understand the potential of CS/MONMs composites for environmental remediation and monitoring. In addition, the challenges of CS/MONM have been proposed.
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Affiliation(s)
- Ru Jiang
- Institute of Environmental Engineering Technology, Taizhou University, Taizhou, Zhejiang 318000, PR China; Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, Zhejiang 318000, PR China; Taizhou Key Laboratory of Biomass Functional Materials Development and Application, Taizhou University, Taizhou, Zhejiang 318000, PR China
| | - Hua-Yue Zhu
- Institute of Environmental Engineering Technology, Taizhou University, Taizhou, Zhejiang 318000, PR China; Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, Zhejiang 318000, PR China; Taizhou Key Laboratory of Biomass Functional Materials Development and Application, Taizhou University, Taizhou, Zhejiang 318000, PR China.
| | - Xiao Zang
- Institute of Environmental Engineering Technology, Taizhou University, Taizhou, Zhejiang 318000, PR China
| | - Yong-Qian Fu
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, Zhejiang 318000, PR China; Taizhou Key Laboratory of Biomass Functional Materials Development and Application, Taizhou University, Taizhou, Zhejiang 318000, PR China
| | - Sheng-Tao Jiang
- Institute of Environmental Engineering Technology, Taizhou University, Taizhou, Zhejiang 318000, PR China; Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, Zhejiang 318000, PR China
| | - Jian-Bing Li
- Environmental Engineering Program, University of Northern British Columbia, Prince George, British Columbia V2N 4Z9, Canada
| | - Qi Wang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, Zhejiang 310018, PR China.
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Rahmatpour A, Alijani N, Alizadeh AH. Preparation of chitosan-based ternary nanocomposite hydrogel film by loading graphene oxide nanosheets as adsorbent for enhanced methylene blue dye removal. Int J Biol Macromol 2023; 253:126585. [PMID: 37659481 DOI: 10.1016/j.ijbiomac.2023.126585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 08/13/2023] [Accepted: 08/27/2023] [Indexed: 09/04/2023]
Abstract
Our objective in this study is to fabricate a novel chitosan-based ternary nanocomposite hydrogel film by incorporating graphene oxide (GO) nanosheets into a chitosan/partially hydrolyzed polyacrylamide (PHPA) network to boost adsorption efficiency through one step self-assembly process in water. Basically, H-bonding interactions drive the formation of a crosslinking network structure. The Batch adsorption experiments evaluated the hydrogel nanocomposite's MB adsorption performance. By loading GO, surface roughness, swelling percentage (from 21,200 % to 35,800 %), elastic modulus of up to 73.7 Pa, and adsorption characteristics (from 282 mg/g to 468 mg/g) were enhanced. The nanocomposite displayed outstanding thermally/pH responsiveness properties. MB adsorption equilibrium was reached after 45 min and the adsorption capacity was 476.19 mg.g-1 when the initial concentration was 100 mg/L. The MB adsorption kinetics and isotherms by the nanocomposite were well correlated by the PSO and the Langmuir models (R2 > 0.99), respectively. The loaded nanocomposite was shown to be regenerative for five cycles through desorption studies. Thermodynamic analysis indicated that MB adsorption occurred spontaneously (ΔG°: -16.47 kJ/mol, 303 K) and exothermically (ΔH°: -79.49 kJ/mol). A plausible adsorption mechanism was proposed for the nanocomposite developed for MB removal. Our results can contribute to the design and fabrication of nanocomposite adsorbents to treat wastewater.
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Affiliation(s)
- Ali Rahmatpour
- Polymer Chemistry Research Laboratory, Faculty of Chemistry and Petroleum Science, Shahid Beheshti University, P. O. Box: 1983969411, Tehran, Iran.
| | - Naser Alijani
- Polymer Chemistry Research Laboratory, Faculty of Chemistry and Petroleum Science, Shahid Beheshti University, P. O. Box: 1983969411, Tehran, Iran
| | - Amir Hossein Alizadeh
- Polymer Chemistry Research Laboratory, Faculty of Chemistry and Petroleum Science, Shahid Beheshti University, P. O. Box: 1983969411, Tehran, Iran
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Guerrero JD, Marchesini FA, Ulla MA, Gutierrez LB. Effect of biocomposite production factors on the development of an eco-friendly chitosan/alginate-based adsorbent with enhanced copper removal efficiency. Int J Biol Macromol 2023; 253:126416. [PMID: 37633556 DOI: 10.1016/j.ijbiomac.2023.126416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/21/2023] [Accepted: 08/17/2023] [Indexed: 08/28/2023]
Abstract
Nowadays, wastewater treatment is a critical concern, particularly regarding the removal of heavy metals through adsorption methods. Extensive research has been conducted on obtaining high-yield and environmentally friendly adsorbents. Natural polymer adsorbents especially have shown promise in ion and organic molecule adsorption. To enhance the practical applicability of adsorbents, the combination of biopolymers to form biocomposites is a promising alternative. In this study, adsorbents based on a 1:1 wt./wt. of chitosan (CS) and alginate (SA) were prepared. The influence of the regeneration route and drying conditions on the copper adsorption capacity was investigated, along with reaction parameters such as contact time, adsorbent particle size, and pH. The highest adsorption capacity was observed in the composite material obtained through a one-pot regeneration process and freeze-dried. The CSAR3L sample exhibited a remarkable adsorption capacity of 288 mg Cu(II)/g after 360 min at 25 °C. The synergistic effect between the CS and SA precursors was confirmed by analyzing the individual precursors and their mechanical mixture. The initial adsorption rates at pH 6 followed the order: CSAR3-L > Bk-CSR3L > Bk-SAR3L + Bk-CSR3L > Bk-SAR3L. The physicochemical and morphological properties of the materials were studied by FTIR, XRD, DLS, XPS, optical microscopy, EDS-SEM, elemental chemical analysis, and TGA-DTG. The utilization of different drying methods resulted in the formation of calcium carbonate crystalline phases in the as-prepared materials, thus creating substantial adsorption active sites. After the adsorption process, hydroxylated copper sulfate phases and a significant decrease in calcium concentration were observed, indicating that an ion exchange adsorption mechanism occurred. The analysis of adsorption kinetics and the shape of the adsorption isotherms, in agreement with the characterization results, suggested the presence of multiple active sites and the formation of a chemisorption monolayer.
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Affiliation(s)
- Jhonnys D Guerrero
- Instituto de Investigaciones en Catálisis y Petroquímica, INCAPE, (FIQ, UNL-CONICET), Santiago del Estero 2829, S3000 Santa Fe, Argentina
| | - Fernanda A Marchesini
- Instituto de Investigaciones en Catálisis y Petroquímica, INCAPE, (FIQ, UNL-CONICET), Santiago del Estero 2829, S3000 Santa Fe, Argentina
| | - María A Ulla
- Instituto de Investigaciones en Catálisis y Petroquímica, INCAPE, (FIQ, UNL-CONICET), Santiago del Estero 2829, S3000 Santa Fe, Argentina
| | - Laura B Gutierrez
- Instituto de Investigaciones en Catálisis y Petroquímica, INCAPE, (FIQ, UNL-CONICET), Santiago del Estero 2829, S3000 Santa Fe, Argentina.
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Zhu J, Li P, Yang B, Lan S, Chen W, Zhu D. Facile fabrication of Fe 3O 4@Mg(OH) 2 magnetic composites and their application in Cu(ii) ion removal. RSC Adv 2023; 13:33403-33412. [PMID: 38025863 PMCID: PMC10644123 DOI: 10.1039/d3ra05961h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 11/08/2023] [Indexed: 12/01/2023] Open
Abstract
In this study, we fabricated magnetic Fe3O4@Mg(OH)2 composites through the seed deposition technique to achieve Cu(ii) ion removal from aqueous solutions. As indicated by the characterization results, three-dimensional flower-like spheres composed of external Mg(OH)2 were formed, with nano-Fe3O4 particles uniformly embedded in the "flower petals" of the spheres. The efficacy of Fe3O4@Mg(OH)2-3 in Cu(ii) ion removal was examined through batch experiments. The impact of solution pH on removal efficiency was examined, and the pseudo-second-order model and the Langmuir model provided good fits to the adsorption kinetics and isotherm data, respectively. Remarkably, Fe3O4@Mg(OH)2-3 exhibited a significant removal capacity of 1051.65 mg g-1 for Cu(ii) ions. Additionally, the composite displayed a notable saturation magnetization value of 17.3 emu g-1, facilitating isolation from sample solutions through external magnetic fields after Cu(ii) ion absorption. At the solid-liquid interface, a mechanism involving ion exchange between Mg(ii) and Cu(ii) cations was realized as the mode of Cu(ii) ion removal. The composites' effective adsorption properties and rapid magnetic separation highlighted their suitability for use in treating copper-contaminated water.
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Affiliation(s)
- Jiachen Zhu
- State Key Laboratory of Plateau Ecology and Agriculture, School of Chemical Engineering, Qinghai University Xining 810016 PR China
| | - Ping Li
- State Key Laboratory of Plateau Ecology and Agriculture, School of Chemical Engineering, Qinghai University Xining 810016 PR China
| | - Bowen Yang
- State Key Laboratory of Plateau Ecology and Agriculture, School of Chemical Engineering, Qinghai University Xining 810016 PR China
| | - Shengjie Lan
- State Key Laboratory of Plateau Ecology and Agriculture, School of Chemical Engineering, Qinghai University Xining 810016 PR China
| | - Weiyuan Chen
- State Key Laboratory of Plateau Ecology and Agriculture, School of Chemical Engineering, Qinghai University Xining 810016 PR China
| | - Donghai Zhu
- State Key Laboratory of Plateau Ecology and Agriculture, School of Chemical Engineering, Qinghai University Xining 810016 PR China
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Sun H, Xu Q, Ren M, Kong F. A water-soluble and biocompatible chitosan-based fluorescent probe for real-time monitoring formaldehyde in living cells and zebrafish. Int J Biol Macromol 2023; 250:126157. [PMID: 37549768 DOI: 10.1016/j.ijbiomac.2023.126157] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 07/24/2023] [Accepted: 08/04/2023] [Indexed: 08/09/2023]
Abstract
Formaldehyde (HCHO) is a common environmental toxicant that can harm the human respiratory tract and nervous system when exposed for long period of time. As a carcinogen, HCHO also increases the risk of cancer in humans. HCHO can be produced endogenously in living systems and plays an essential role in physiological and biochemical reactions and pathogenesis. Therefore, monitoring the level of HCHO in vivo and in vitro has become the focus of attention. The designed naphthalene fluorophore was introduced onto modified chitosan to prepare a chitosan-based fluorescent probe (CS-FA) for HCHO detection. Compared to other small-molecule probe analogs for the detection of HCHO, the randomly coiled polymer chain of chitosan enabled CS-FA to "enrich" HCHO using the synergistic binding of hydrazino-naphthalimide recognition sites. Thus, the reaction of the analyte with the recognition site was accelerated, resulting in a faster equilibrium fluorescence response (2-3 min) and high sensitivity. In addition, the introduction of biomass material chitosan also improved the biocompatibility of the probe. Then a series of composite materials (test strips and hydrogel) were prepared based on the probe to expand the application form of the probe.
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Affiliation(s)
- Hui Sun
- State Key Laboratory of Biobased Material and Green Papermaking, Key Laboratory of Pulp & Paper Science and Technology of Shandong Province, Ministry of Education, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, PR China
| | - Qingyu Xu
- State Key Laboratory of Biobased Material and Green Papermaking, Key Laboratory of Pulp & Paper Science and Technology of Shandong Province, Ministry of Education, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, PR China
| | - Mingguang Ren
- State Key Laboratory of Biobased Material and Green Papermaking, Key Laboratory of Pulp & Paper Science and Technology of Shandong Province, Ministry of Education, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, PR China.
| | - Fangong Kong
- State Key Laboratory of Biobased Material and Green Papermaking, Key Laboratory of Pulp & Paper Science and Technology of Shandong Province, Ministry of Education, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, PR China.
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41
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Xiao L, Shan H, Wu Y. Chitosan cross-linked and grafted with epichlorohydrin and 2,4-dichlorobenzaldehyde as an efficient adsorbent for removal of Pb(II) ions from aqueous solution. Int J Biol Macromol 2023; 247:125503. [PMID: 37348580 DOI: 10.1016/j.ijbiomac.2023.125503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 05/01/2023] [Accepted: 06/19/2023] [Indexed: 06/24/2023]
Abstract
Epichlorohydrin-modified chitosan-Schiff base composite (CS/24Cl/ECH) prepared via the one-pot reaction as characterized by Fourier transform Infra-Red spectroscopy (FT-IR), X-ray powder diffraction (XRD), Differential scanning calorimetry (DSC) and Scanning electron microscope (SEM). Its removal ability of Pb(II) ions from aqueous solution was investigated. The adsorption of Pb(II) ions carried out at different initial pH, dose of CS/24-Cl/ECH, contact time and co-existing ions. The maximum adsorption capacity of Pb(II) ions was 170 mg/g. Finally, based on the absorption results, the adsorption of Pb(II) ions was fitted by single-layer Langmuir isotherm model and the pseudo-second-order (PSO) kinetics model. The absorption mechanism of Pb(II) ions was controlled by chemical coordination Pb(II) ions with the active sites on the surface of CS/24Cl/ECH composite. Also, CS/24Cl/ECH showed excellent recyclable efficiency up to 5 cycle and potential sorbent for other heavy metal ions.
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Affiliation(s)
- Li Xiao
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, College of Life Science, Huzhou University, Huzhou 313000, PR China.
| | - Hanbin Shan
- Division of Chemical Pharmaceuticals, Shanghai Institute of Pharmaceutical Industry, Shanghai 201203, PR China
| | - Yi Wu
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, College of Life Science, Huzhou University, Huzhou 313000, PR China
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Velarde L, Nabavi MS, Escalera E, Antti ML, Akhtar F. Adsorption of heavy metals on natural zeolites: A review. CHEMOSPHERE 2023; 328:138508. [PMID: 36972873 DOI: 10.1016/j.chemosphere.2023.138508] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 02/20/2023] [Accepted: 03/24/2023] [Indexed: 06/18/2023]
Abstract
Water pollution has jeopardized human health, and a safe supply of drinking water has been recognized as a worldwide issue. The increase in the accumulation of heavy metals in water from different sources has led to the search for efficient and environmentally friendly treatment methods and materials for their removal. Natural zeolites are promising materials for removing heavy metals from different sources contaminating the water. It is important to know the structure, chemistry, and performance of the removal of heavy metals from water, of the natural zeolites to design water treatment processes. This review focuses on critical analyses of the application of distinct natural zeolites for the adsorption of heavy metals from water, specifically, arsenic (As(III), As(V)), cadmium (Cd(II)), chromium (Cr(III), Cr(VI)), lead (Pb(II)), mercury(Hg(II)) and nickel (Ni(II)). The reported results of heavy-metal removal by natural zeolites are summarized, and the chemical modification of natural zeolites by acid/base/salt reagent, surfactants, and metallic reagents has been analyzed, compared, and described. Furthermore, the adsorption/desorption capacity, systems, operating parameters, isotherms, and kinetics for natural zeolites were described and compared. According to the analysis, clinoptilolite is the most applied natural zeolite to remove heavy metals. It is effective in removing As, Cd, Cr, Pb, Hg, and Ni. Additionally, an interesting fact is a variation between the natural zeolites from different geological origins regarding the sorption properties and capacities for heavy metals suggesting that natural zeolites from different regions of the world are unique.
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Affiliation(s)
- Lisbania Velarde
- Department of Chemistry, Faculty of Science and Technology, San Simon University, UMSS, Cochabamba, Bolivia; Division of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, SE-971 87, Luleå, Sweden
| | - Mohammad Sadegh Nabavi
- Division of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, SE-971 87, Luleå, Sweden
| | - Edwin Escalera
- Department of Chemistry, Faculty of Science and Technology, San Simon University, UMSS, Cochabamba, Bolivia
| | - Marta-Lena Antti
- Division of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, SE-971 87, Luleå, Sweden
| | - Farid Akhtar
- Division of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, SE-971 87, Luleå, Sweden.
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Abdul Rahman N, Jose Jol C, Albania Linus A, Wan Borhan WWS, Abdul Jalal NS, Baharudin N, Samsul SNA, Abdul Mutalip N, Jitai AA, Abang Abdul Hamid DFA. Continuous electrocoagulation treatment system for partial desalination of tropical brackish peat water in Sarawak coastal peatlands. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 880:163517. [PMID: 37068674 DOI: 10.1016/j.scitotenv.2023.163517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 03/25/2023] [Accepted: 04/11/2023] [Indexed: 05/27/2023]
Abstract
Sarawak coastal peatlands located on Borneo Island have vast availability of brackish peat water sources especially in some coastal rural areas. However, brackish peat water is currently underutilized as the source for water treatment plants due to excessive salinity levels. As such, this study aims to investigate the salinity reduction in brackish peat water sources for domestic consumption in Sarawak coastal peatlands by utilizing continuous electrocoagulation treatment with aluminium electrodes. Correspondingly, this study analyzes the effects of salinity percentage, electric current, and flow rate on salinity reduction with electrocoagulation treatment. This study has found that the treated salinity levels in brackish peat water with 30 % of salinity percentage meet the Malaysia Class I in National Water Quality Standard. The study has also identified both monolayer and multilayer adsorption that occurs in electrocoagulation treatment as the precursor to salinity reduction. In addition, the presence of in-situ aluminium hydroxide coagulants could adsorb some sodium chloride from brackish peat water with 70 % of salinity percentage at 2503 mg/g of maximum adsorption capacity and 2.65 min-1 of adsorption rate. This study has also found that electrocoagulation treatment could achieve 91.78 % of maximum salinity reduction efficiency at an optimum electric current of 5 A and flow rate of 1.2 L/min in brackish peat water with 30 % of salinity percentage. This treatment system costs only Ringgit Malaysia (RM) 0.29 or United States Dollars (USD) 0.06 per meter cubic of treated brackish peat water. Overall, this study demonstrates that continuous electrocoagulation treatment could partially desalinate brackish peat water with 30 % of salinity percentage in which the treated salinity levels could be utilized for domestic consumption in Sarawak coastal peatlands at reasonable cost.
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Affiliation(s)
- Nazeri Abdul Rahman
- Department of Chemical Engineering and Energy Sustainability, Faculty of Engineering, Universiti Malaysia Sarawak, Jalan Datuk Mohammad Musa, 94300, Kota Samarahan, Sarawak, Malaysia.
| | - Calvin Jose Jol
- Department of Chemical Engineering and Energy Sustainability, Faculty of Engineering, Universiti Malaysia Sarawak, Jalan Datuk Mohammad Musa, 94300, Kota Samarahan, Sarawak, Malaysia.
| | - Allene Albania Linus
- Department of Chemical Engineering and Energy Sustainability, Faculty of Engineering, Universiti Malaysia Sarawak, Jalan Datuk Mohammad Musa, 94300, Kota Samarahan, Sarawak, Malaysia.
| | - Wan Wafi Shahanney Wan Borhan
- Department of Chemical Engineering and Energy Sustainability, Faculty of Engineering, Universiti Malaysia Sarawak, Jalan Datuk Mohammad Musa, 94300, Kota Samarahan, Sarawak, Malaysia
| | - Nur Syahida Abdul Jalal
- Department of Chemical Engineering and Energy Sustainability, Faculty of Engineering, Universiti Malaysia Sarawak, Jalan Datuk Mohammad Musa, 94300, Kota Samarahan, Sarawak, Malaysia
| | - Nooranisha Baharudin
- Department of Chemical Engineering and Energy Sustainability, Faculty of Engineering, Universiti Malaysia Sarawak, Jalan Datuk Mohammad Musa, 94300, Kota Samarahan, Sarawak, Malaysia
| | - Shaleen Nur Ain Samsul
- Department of Chemical Engineering and Energy Sustainability, Faculty of Engineering, Universiti Malaysia Sarawak, Jalan Datuk Mohammad Musa, 94300, Kota Samarahan, Sarawak, Malaysia
| | - Nurshazatul'aini Abdul Mutalip
- Department of Chemical Engineering and Energy Sustainability, Faculty of Engineering, Universiti Malaysia Sarawak, Jalan Datuk Mohammad Musa, 94300, Kota Samarahan, Sarawak, Malaysia
| | - Airul Azhar Jitai
- Department of Chemical Engineering and Energy Sustainability, Faculty of Engineering, Universiti Malaysia Sarawak, Jalan Datuk Mohammad Musa, 94300, Kota Samarahan, Sarawak, Malaysia
| | - Dayang Fadhilatul Aisyah Abang Abdul Hamid
- Department of Chemical Engineering and Energy Sustainability, Faculty of Engineering, Universiti Malaysia Sarawak, Jalan Datuk Mohammad Musa, 94300, Kota Samarahan, Sarawak, Malaysia
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Sočo E, Domoń A, Papciak D, Michel MM, Pająk D, Cieniek B, Azizi M. Characteristics of Adsorption/Desorption Process on Dolomite Adsorbent in the Copper(II) Removal from Aqueous Solutions. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4648. [PMID: 37444961 DOI: 10.3390/ma16134648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/25/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023]
Abstract
The removal of hazardous heavy metals that have been released into the environment due to industrial activities has become an important issue in recent years. The presented study concerned the removal of copper(II) ions from aqueous solutions using dolomites. Dolomite is a very attractive adsorbent due to its wide availability, low cost, good adsorption, and environmental compatibility. The paper describes the properties of D-I and D-II dolomites from two different open-cast mines in Poland. The properties of natural adsorbents were determined based on point of zero charges (PZC), elemental analysis of the adsorbent composition, FT-IR, XRD, and SEM spectra analysis. Depending on the initial concentration of the solution used, the adsorption efficiency of copper(II) ions was 58-80% for D-I and 80-97% for D-II. The adsorption mechanism in the case of D-II dolomite was mainly based on ion exchange, while chemisorption dominated the D-I dolomite surface. Considering the possibility of the regeneration and reuse of the adsorbent, dolomite D-II is a better material (the desorption efficiency of copper(II) ions was 58-80%). The adsorption behavior of dolomites has been described using six adsorption isotherms. The best fit was obtained for the Redlich-Peterson, Jovanović, and Langmuir isotherms, indicating that monolayer adsorption occurred. The maximum adsorption capacity for copper(II) was 378 mg/g of D-I and 308 mg/g of D-II.
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Affiliation(s)
- Eleonora Sočo
- Department of Inorganic and Analytical Chemistry, Faculty of Chemistry, Rzeszow University of Technology, 35-959 Rzeszow, Poland
| | - Andżelika Domoń
- Department of Water Purification and Protection, Faculty of Civil, Environmental Engineering and Architecture, Rzeszow University of Technology, 35-959 Rzeszow, Poland
| | - Dorota Papciak
- Department of Water Purification and Protection, Faculty of Civil, Environmental Engineering and Architecture, Rzeszow University of Technology, 35-959 Rzeszow, Poland
| | - Magdalena M Michel
- Institute of Environmental Engineering, Warsaw University of Life Sciences-SGGW, 02-787 Warsaw, Poland
| | - Dariusz Pająk
- Department of Casting and Welding, Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, 35-959 Rzeszow, Poland
| | - Bogumił Cieniek
- Institute of Materials Engineering, College of Natural Sciences, University of Rzeszow, Pigonia 1, 35-310 Rzeszow, Poland
| | - Mostafa Azizi
- Institute of Environmental Engineering, Warsaw University of Life Sciences-SGGW, 02-787 Warsaw, Poland
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Lamanna L, Giacoia G, Friuli M, Leone G, Carlucci N, Russo F, Sannino A, Demitri C. Oil-Water Emulsion Flocculation through Chitosan Desolubilization Driven by pH Variation. ACS OMEGA 2023; 8:20708-20713. [PMID: 37332801 PMCID: PMC10268613 DOI: 10.1021/acsomega.3c01257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 04/10/2023] [Indexed: 06/20/2023]
Abstract
Water pollution is a major concern in our modern age. The contamination of water, as a valuable and often limited resource, affects both the environment and human health. Industrial processes such as food, cosmetics, and pharmaceutical production also contribute to this problem. Vegetable oil production, for example, generates a stable oil/water emulsion containing 0.5-5% oil, which presents a difficult waste disposal issue. Conventional treatment methods based on aluminum salts generate hazardous waste, highlighting the need for green and biodegradable coagulant agents. In this study, the efficacy of commercial chitosan, a natural polysaccharide derived from chitin deacetylation, has been evaluated as a coagulation agent for vegetable oil emulsions. The effect of commercial chitosan was assessed in relation to different surfactants (anionic, cationic, and nonpolar) and pH levels. The results demonstrate that chitosan is effective at concentrations as low as 300 ppm and can be reused, providing a cost-effective and sustainable solution for oil removal. The flocculation mechanism relies on the desolubilization of the polymer, which acts as a net to entrap the emulsion, rather than solely relying on electrostatic interactions with the particles. This study highlights the potential of chitosan as a natural and ecofriendly alternative to conventional coagulants for the remediation of oil-contaminated water.
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Affiliation(s)
- Leonardo Lamanna
- Department
of Engineering for Innovation, Campus Ecotekne, University of Salento, Via per Monteroni, 73100 Lecce, Italy
| | | | - Marco Friuli
- Department
of Engineering for Innovation, Campus Ecotekne, University of Salento, Via per Monteroni, 73100 Lecce, Italy
| | | | | | | | - Alessandro Sannino
- Department
of Engineering for Innovation, Campus Ecotekne, University of Salento, Via per Monteroni, 73100 Lecce, Italy
| | - Christian Demitri
- Department
of Engineering for Innovation, Campus Ecotekne, University of Salento, Via per Monteroni, 73100 Lecce, Italy
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Varamesh A, Abraham BD, Wang H, Berton P, Zhao H, Gourlay K, Minhas G, Lu Q, Bryant SL, Hu J. Multifunctional fully biobased aerogels for water remediation: Applications for dye and heavy metal adsorption and oil/water separation. JOURNAL OF HAZARDOUS MATERIALS 2023; 457:131824. [PMID: 37327610 DOI: 10.1016/j.jhazmat.2023.131824] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/16/2023] [Accepted: 06/08/2023] [Indexed: 06/18/2023]
Abstract
Water ecosystem contamination from industrial pollutants is an emerging threat to both humans and native species, making it a point of global concern. In this work, fully biobased aerogels (FBAs) were developed by using low-cost cellulose filament (CF), chitosan (CS), citric acid (CA), and a simple and scalable approach, for water remediation applications. The FBAs displayed superior mechanical properties (up to ∼65 kPa m3 kg-1 specific Young's modulus and ∼111 kJ/m3 energy absorption) due to CA acting as a covalent crosslinker in addition to the natural hydrogen bonding and electrostatic interactions between CF and CS. The addition of CS and CA increased the variety of functional groups (carboxylic acid, hydroxyl and amines) on the materials' surface, resulting in super-high dye and heavy metal adsorption capacities (619 mg/g and 206 mg/g for methylene blue and copper, respectively). Further modification of FBAs with a simple approach using methyltrimethoxysilane endowed aerogel oleophilic and hydrophobic properties. The developed FBAs showed a fast performance in water and oil/organic solvents separation with more than 96% efficiency. Besides, the FBA sorbents could be regenerated and reused for multiple cycles without any significant impact on their performance. Moreover, thanks to the presence of amine groups by addition of CS, FBAs also displayed antibacterial properties by preventing the growth of Escherichia coli on their surface. This work demonstrates the preparation of FBAs from abundant, sustainable, and inexpensive natural resources for applications in wastewater purification.
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Affiliation(s)
- Amir Varamesh
- Department of Chemical and Petroleum Engineering, University of Calgary, Calgary T2N 1N4, Canada
| | - Brett David Abraham
- Department of Biomedical Engineering, University of Calgary, Calgary T2N 1N4, Canada; Pharmaceutical Production Research Facility, University of Calgary, Calgary T2N 1N4, Canada
| | - Hui Wang
- Department of Chemical and Petroleum Engineering, University of Calgary, Calgary T2N 1N4, Canada
| | - Paula Berton
- Department of Chemical and Petroleum Engineering, University of Calgary, Calgary T2N 1N4, Canada
| | - Heng Zhao
- Department of Chemical and Petroleum Engineering, University of Calgary, Calgary T2N 1N4, Canada
| | - Keith Gourlay
- Performance BioFilaments, 700 West Pender Street, Vancouver V6C 1G8, Canada
| | - Gurminder Minhas
- Performance BioFilaments, 700 West Pender Street, Vancouver V6C 1G8, Canada
| | - Qingye Lu
- Department of Chemical and Petroleum Engineering, University of Calgary, Calgary T2N 1N4, Canada
| | - Steven L Bryant
- Department of Chemical and Petroleum Engineering, University of Calgary, Calgary T2N 1N4, Canada.
| | - Jinguang Hu
- Department of Chemical and Petroleum Engineering, University of Calgary, Calgary T2N 1N4, Canada.
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Bediako JK, El Ouardi Y, Massima Mouele ES, Mensah B, Repo E. Polyelectrolyte and polyelectrolyte complex-incorporated adsorbents in water and wastewater remediation - A review of recent advances. CHEMOSPHERE 2023; 325:138418. [PMID: 36925007 DOI: 10.1016/j.chemosphere.2023.138418] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 03/09/2023] [Accepted: 03/13/2023] [Indexed: 06/18/2023]
Abstract
In recent years, polyelectrolyte-incorporated functional materials have emerged as novel adsorbents for effective remediation of pollutants in water and wastewater. Polyelectrolytes (PEs) are a special class of polymers with long chains of repeating charged moieties. Polyelectrolyte complexes (PECs) are obtained by mixing aqueous solutions of oppositely charged PEs. Herewith, this review discusses recent advances with respect to water and wastewater remediation using PE- and PEC-incorporated adsorbents. The review begins by highlighting some water resources, their pollution sources and available treatment techniques. Next, an overview of PEs and PECs is discussed, highlighting the evolving progress in their processing. Consequently, application of these materials in different facets of water and wastewater remediation, including heavy metal removal, precious metal and rare earth element recovery, desalination, dye and emerging micropollutant removal, are critically reviewed. For water and wastewater remediation, PEs and PECs are mostly applied either in their original forms, as composites or as morphologically-tunable complexes. PECs are deemed superior to other materials owing to their tunability for both cationic and anionic pollutants. Generally, natural and semi-synthetic PEs have been largely applied owing to their low cost, ready availability and eco-friendliness. Except dye removal and desalination of saline water, application of synthetic PEs and PECs is scanty, and hence requires more focus in future research.
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Affiliation(s)
- John Kwame Bediako
- Department of Separation Science, School of Engineering Science, Lappeenranta-Lahti University of Technology (LUT), FI-53850 Lappeenranta, Finland; Department of Food Process Engineering, School of Engineering Sciences, College of Basic and Applied Sciences, University of Ghana, P. O. Box LG 77, Legon, Accra, Ghana.
| | - Youssef El Ouardi
- Department of Separation Science, School of Engineering Science, Lappeenranta-Lahti University of Technology (LUT), FI-53850 Lappeenranta, Finland
| | - Emile Salomon Massima Mouele
- Department of Separation Science, School of Engineering Science, Lappeenranta-Lahti University of Technology (LUT), FI-53850 Lappeenranta, Finland
| | - Bismark Mensah
- Department of Materials Science and Engineering, School of Engineering Sciences, College of Basic and Applied Sciences, University of Ghana, P. O. Box LG 77, Legon, Accra, Ghana
| | - Eveliina Repo
- Department of Separation Science, School of Engineering Science, Lappeenranta-Lahti University of Technology (LUT), FI-53850 Lappeenranta, Finland
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Rahmatpour A, Alijani N. An all-biopolymer self-assembling hydrogel film consisting of chitosan and carboxymethyl guar gum: A novel bio-based composite adsorbent for Cu 2+ adsorption from aqueous solution. Int J Biol Macromol 2023; 242:124878. [PMID: 37187419 DOI: 10.1016/j.ijbiomac.2023.124878] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 05/05/2023] [Accepted: 05/11/2023] [Indexed: 05/17/2023]
Abstract
A novel bio-based composite adsorbent, all biopolymer self-assembled hydrogel film has been prepared by eco-friendly amalgamating chitosan (CS) and carboxymethyl guar gum (CMGG) biopolymers in water without needing small molecules for cross-linking. Various analysis demonstrated the electrostatic interactions and hydrogen bondings within the network structure are responsible for gelling, crosslinking, and forming a 3D structure. Various experimental parameters were optimized to evaluate the CS/CMGG's potential for removing Cu2+ ions from aqueous solution, including pH, dosage, Cu(II) initial concentration, contact time, and temperature. The pseudo-second-order kinetic and Langmuir isotherm models are highly correlated with the kinetic and equilibrium isotherm data, respectively. Using the Langmuir isotherm model for an initial metal concentration of 50 mg/L at pH 6.0 and 25 °C, the maximum adsorption of Cu(II) was calculated to be 155.51 mg/g. A combination of adsorption-complexation and ion exchange must be involved in Cu(II) adsorption on the CS/CMGG. Five cycles of the loaded CS/CMGG hydrogel regeneration and reuse were successfully achieved without an appreciable difference in Cu(II) removal percentage. Thermodynamic analysis indicated that copper adsorption occurred spontaneously (ΔG°: -2.85 J/mol, 298 K) and exothermically (ΔH°: -27.58 J/mol). A reusable bio-adsorbent for removing heavy metal ions was developed that is eco-friendly, sustainable, and efficient.
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Affiliation(s)
- Ali Rahmatpour
- Polymer Chemistry Research Laboratory, Faculty of Chemistry and Petroleum Science, Shahid Beheshti University, P.O. Box: 1983969411, Tehran, Iran.
| | - Naser Alijani
- Polymer Chemistry Research Laboratory, Faculty of Chemistry and Petroleum Science, Shahid Beheshti University, P.O. Box: 1983969411, Tehran, Iran
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Eldenary AOA, El-Salam HMA, Allah AE. Chitosan-g-polyacrylonitrile ZnO nano-composite, synthesis and characterization as new and good adsorbent for Iron from groundwater. Int J Biol Macromol 2023; 242:124768. [PMID: 37169054 DOI: 10.1016/j.ijbiomac.2023.124768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 05/01/2023] [Accepted: 05/03/2023] [Indexed: 05/13/2023]
Abstract
The highly poisonous, non-biodegradable heavy metals present serious concern in wastewater environmental sustainability and human health. Using adsorption is an effective technology for the treatment of this kind of water. Therefore, developing efficient and cost-effective adsorbents considers a significant and an emerging topic in the field the water purification. Chitosan grafted polyacrylonitrile (Cs-g-PAN) was facially fabricated via graft polymerization using ammonium persulfate (APS) as the initiator. The simple ultrasonic technique was used for doping ZnO nanoparticles into the Cs-g-PAN matrix to prepare chitosan-grafted polyacrylonitrile/ZnO (Cs-g-PAN/ZnO). For comparative study, pure ZnO and nanocomposite of PAN doped with ZnO (PAN/ZnO) were also prepared. XRD, FTIR, SEM, TEM, BET, EDS, and TGA measurements were conducted to confirm the morphological and structural properties of the prepared materials. Cs-g-PAN/ZnO possesses a specific surface area of 20.23 m2/g with a pore size of 31.58 nm and pore volume of 0.16 cm3 g-1. The adsorption behavior toward Fe(II) as a pollutant for groundwater was studied for the synthesized materials. The effect of pH (4-8), contact time (5-60 min), adsorbent dose (0.01-0.3 g), and different temperature degrees (278, 288, 298, 308, and 318 K) on the removal of iron (II) has been conducted. The removal efficiency was achieved 100 % under the optimum condition, at pH = 7, contact time 30 min, adsorbate concentration 0.93 mg/L, and adsorbent dosage 0.05 g/L at room temperature. Langmuir and Freundlich's isothermal and kinetic studies have been analyzed to determine the adsorption mechanism of Fe(II) ions on the synthesized nanomaterials. The adsorption process of Fe(II) over the surface of prepared catalysts proceeded via the Langmuir model and pseudo-second-order reaction kinetics with R2 > 0.99. Suggesting the formation of Fe(II) monolayer over the adsorbent surface and the rate-limiting step is probably controlled by chemisorption through sharing the electrons between Fe+2 and the prepared catalyst.
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Affiliation(s)
- Abdelrahman O A Eldenary
- Department of Chemistry, Faculty of Science, Polymer Research Laboratory, Beni-Suef University, 62514 Beni-Suef City, Egypt
| | - H M Abd El-Salam
- Department of Chemistry, Faculty of Science, Polymer Research Laboratory, Beni-Suef University, 62514 Beni-Suef City, Egypt.
| | - Abeer Enaiet Allah
- Department of Chemistry, Faculty of Science, Beni-Suef University, 62514 Beni-Suef City, Egypt
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Liu W, Lou T, Wang X. Enhanced dye adsorption with conductive polyaniline doped chitosan nanofibrous membranes. Int J Biol Macromol 2023; 242:124711. [PMID: 37148947 DOI: 10.1016/j.ijbiomac.2023.124711] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 04/19/2023] [Accepted: 04/29/2023] [Indexed: 05/08/2023]
Abstract
Polyaniline is widely used in the field of electrochemistry due to its excellent electrical conductivity. However, its effectiveness and mechanism of enhancing adsorption property are unclear. Herein, chitosan/polyaniline nanofibrous composite membranes with average diameter ranging from 200 to 300 nm were fabricated by electrospinning technology. The as-prepared nanofibrous membranes exhibited significantly improved adsorption capacity of 814.9 mg/g and 618.0 mg/g towards acid blue 113 and reactive orange dyes, which were 121.8 % and 99.4 % higher than that of pure chitosan membrane. The doped polyaniline promoted the dye transfer rate and capacity due to the enhanced conductivity of the composite membrane. Kinetic data showed that chemisorption was the rate-limiting step, and thermodynamic data indicated the adsorption of the two anionic dyes was spontaneous monolayer adsorption. This study provides a feasible strategy to introduce conductive polymer into adsorbent to construct high performance adsorbents for wastewater treatment.
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Affiliation(s)
- Wenxia Liu
- College of Chemistry & Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Tao Lou
- College of Chemistry & Chemical Engineering, Qingdao University, Qingdao 266071, China.
| | - Xuejun Wang
- College of Chemistry & Chemical Engineering, Qingdao University, Qingdao 266071, China.
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