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Wen J, Dan Y, Liu X, Li H. Promoting microalgal biofilm formation by crushed oyster shell-hydroxyapatite layer on micropatterned aluminum coating for heavy metal ions removal. Colloids Surf B Biointerfaces 2024; 243:114168. [PMID: 39190939 DOI: 10.1016/j.colsurfb.2024.114168] [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: 09/07/2023] [Revised: 08/14/2024] [Accepted: 08/19/2024] [Indexed: 08/29/2024]
Abstract
Microalgal biomass has shown inspiring potential for the heavy metal removal from wastewater, and forming microalgal biofilm is one of the sustainable methods for the microalgal biomass production. Here we report the formation of microalgal biofilm by accelerated colonization of typical algae Chlorella on thermal sprayed aluminum (Al) coatings with biologically modified surfaces. Micro-patterning surface treatment of the Al coatings promotes the attachment of Chlorella from 6.31 % to 17.51 %. Further enhanced algae attachment is achieved through liquid flame spraying a bioactive crushed oyster shell-hydroxyapatite (CaCO3-HA) composite top layer on the micropatterned coating, reaching 46.03-49.62 % of Chlorella attachment ratio after soaking in Chlorella suspension for 5 days. The rapidly formed microalgal biofilm shows an adsorption ratio of 95.43 % and 85.23 % for low concentration Zn2+ and Cu2+ in artificial seawater respectively within 3 days. Quick interaction has been realized between heavy metal ions and the negatively-charged extracellular polymeric substances (EPS) matrix existing in the biofilm. Fourier transform infrared spectroscopy (FTIR) results indicate that both carboxyl and phosphoryl groups of biofilms are crucial in the adsorption of Cu2+ and the adsorption of Zn2+ is due to the hydroxyl and phosphate groups. Meanwhile, the biofilm could act as a barrier to protect Chlorella against the attack of the heavy metal ions with relatively low concentrations in aqueous solution. The route of quick cultivating microalgal biofilm on marine structures through constructing biological layer on their surfaces would give insight into developing new techniques for removing low concentration heavy metal ions from water for environmental bioremediation.
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Affiliation(s)
- Jianxin Wen
- Zhejiang-Japan Joint Laboratory for Antibacterial and Antifouling Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yanxin Dan
- Zhejiang-Japan Joint Laboratory for Antibacterial and Antifouling Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Xiaomei Liu
- Zhejiang-Japan Joint Laboratory for Antibacterial and Antifouling Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
| | - Hua Li
- Zhejiang-Japan Joint Laboratory for Antibacterial and Antifouling Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.
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2
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Rasheed A, Rasheed F, Kayani WK, Jawad M, Ghous T, Irshad M. EDTA functionalized pine needle biochar (EDTA@BC); a valorized bio-material for removal of Ni(II) from aqueous solution. Microsc Res Tech 2024; 87:2355-2370. [PMID: 38798148 DOI: 10.1002/jemt.24616] [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: 12/18/2023] [Revised: 05/03/2024] [Accepted: 05/12/2024] [Indexed: 05/29/2024]
Abstract
The preparation of ethylenediaminetetraacetic acid (EDTA) functionalized pine needles biochar (EDTA@BC) as a low-cost active adsorbent and its effectiveness in removing Ni(II) from aqueous solution at various conditions is reported in this paper. First, alkali activation was selected to render the pine needle biochar with an excellent porous structure and increased concentration of hydroxyl groups to facilitate grafting. Subsequently, a simple method was utilized to graft EDTA onto the biochar. The prepared EDTA@BC was characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and energy dispersive x-ray spectrometry (EDX). Batch adsorption studies were conducted to assess the impact of various parameters such as solution pH, adsorbent dosage, adsorbate volume, and shaking time on the removal efficiency of Ni(II). At pH 6, 100 mg dosage, 4 mL of adsorbate volume, and 10 min of shaking time, the maximum removal efficiency of Ni(II) was observed to be 89%. EDTA@BC showed reasonable sorption performance still after the third cycle of regeneration. The effect of interfering ions such as Pb, Cr, Cu, and Hg was evaluated, resulting a decrease of 69%, 78%, 76%, and 68%, respectively, in its sorption capacity. The Langmuir model provided a better fit for Ni(II) in the concentration range of 0.1-2000 ppm under optimized conditions, with qmax of 46.69 ± 1.031 mg/g and KL of 0.001, compared with the Freundlich isotherm, which yielded n = 0.234 and χ2 = 2.7899, Temkin isotherm (R2 = 0.9520), and Redlich-Peterson isotherm (R2 = 0.9725). The removal of Ni(II) by EDTA@BC was found to be the pseudo-second-order kinetics. Thermodynamic studies indicated adsorption process to be endothermic and nonspontaneous. Hence, a sustainable valorized bio-material (EDTA@BC) is prepared having better sorption efficiency of Ni(II) from aqueous solution with possible wide applicability. RESEARCH HIGHLIGHTS: New EDTA functionalized indigenous pine needles biochar (EDTA@BC) was prepared. This low-cost active adsorbent found effective in removing Ni(II) from aqueous solution. FTIR, SEM, and EDX proved synthesis and uptake of Ni(II) from aqueous solution. Ni(II) removal, regeneration, interfering and adsorption studies were performed by UV-Vis spectroscopy.
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Affiliation(s)
- Aamir Rasheed
- Faculty of Basic and Applied Sciences, Chemistry Department, University of Kotli, Kotli, Azad Jammu and Kashmir, Pakistan
| | - Faiza Rasheed
- Department of Biotechnology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Waqas Khan Kayani
- Department of Biotechnology, Faculty of Basic and Applied Sciences, University of Kotli, Kotli, Azad Jammu and Kashmir, Pakistan
| | - Muhammad Jawad
- Faculty of Basic and Applied Sciences, Chemistry Department, University of Kotli, Kotli, Azad Jammu and Kashmir, Pakistan
| | - Tahseen Ghous
- Department of Chemistry, Mirpur University of Science & Technology (MUST), Mirpur, Pakistan
| | - Muhammad Irshad
- Faculty of Basic and Applied Sciences, Chemistry Department, University of Kotli, Kotli, Azad Jammu and Kashmir, Pakistan
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Oh DH, Heo JW, Xia Q, Kim MS, Kim YS. Amine-crosslinked lignin for water pollution attributable to organic dye remediation: Versatile adsorbent for selective dye removal and reusability. Heliyon 2024; 10:e37497. [PMID: 39290289 PMCID: PMC11407063 DOI: 10.1016/j.heliyon.2024.e37497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 09/04/2024] [Accepted: 09/04/2024] [Indexed: 09/19/2024] Open
Abstract
Lignin, an abundant natural resource, has not been effectively utilized. In this study, the functionality of lignin was enhanced through amination to produce amine-crosslinked lignin, and its adsorption behavior toward cationic and anionic dyes was investigated. Chemical structure analysis confirmed the successful introduction of amine groups, thereby improving the molecular weight and thermal stability of the optimized amine-crosslinked lignin. Additionally, the amine-crosslinked lignin exhibited a larger specific surface area than kraft lignin, as well as excellent adsorption capacity for both anionic and cationic dyes. Furthermore, it selectively adsorbed anionic and cationic dyes depending on pH conditions. The adsorption kinetics were described using a pseudo-second-order model, and the adsorption isotherms for congo red and methyl green were determined using the Langmuir and Freundlich equations, respectively. Additionally, the reusability and adsorption efficiency of the optimized amine-crosslinked lignin were evaluated, confirming its stable and repeatable adsorption efficiency for congo red and methyl green even after five repeated cycles. The assumed adsorption mechanism was attributed to electrostatic interactions. Therefore, the successful synthesis and excellent adsorption properties of amine-crosslinked lignin suggest its promising potential for environmentally friendly and efficient removal of both cationic and anionic dyes, thereby offering a sustainable solution for wastewater treatment and remediation.
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Affiliation(s)
- Do Hun Oh
- Department of Paper Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Ji Won Heo
- Department of Paper Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Qian Xia
- Department of Paper Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Min Soo Kim
- Department of Paper Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Yong Sik Kim
- Department of Paper Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, 24341, Republic of Korea
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Xu HY, Yang X, Yu R, Zuo T, Liu Q, Jia S, Jia LY. Adsorption properties of cellulose-derived hydrogel and magnetic hydrogels from Sophora flavescens on Cu 2+ and Congo red. Int J Biol Macromol 2024; 274:133209. [PMID: 38906348 DOI: 10.1016/j.ijbiomac.2024.133209] [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: 05/11/2024] [Accepted: 06/14/2024] [Indexed: 06/23/2024]
Abstract
This study synthesized a robust, magnetically responsive hydrogel from Sophora flavescens-modified cellulose and chitosan, employing Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA and DTG), and scanning electron microscopy (SEM) to confirm the preservation of cellulose's intrinsic properties and the hydrogel's remarkable elasticity, toughness, and porosity. These hydrogels integrate cellulose's structural backbone with functional moieties from chitosan, enhancing adsorption capabilities for Cu2+ ions and Congo red (CR) dye. Kinetic and thermodynamic analyses reveal that adsorption is spontaneous and endothermic, following a pseudo-second-order model and the Freundlich isotherm. Notably, Cu2+ adsorption capacity increases with pH, while CR adsorption initially decreases before rising, demonstrating the hydrogels' potential as effective, sustainable adsorbents for removing pollutants from water.
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Affiliation(s)
| | - XianWen Yang
- Third Institute of Oceanography, Ministry of Natural Resources, China
| | - RunPing Yu
- Shenyang Pharmaceutical University, China
| | - Ting Zuo
- Shenyang Pharmaceutical University, China
| | - QiuYue Liu
- Shenyang Pharmaceutical University, China
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Kumari S, Sharma R, Thakur N, Kumari A. Removal of organic and inorganic effluents from wastewater by using degradation and adsorption properties of transition metal-doped nickel ferrite. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:46526-46545. [PMID: 36973621 DOI: 10.1007/s11356-023-26567-4] [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: 12/22/2022] [Accepted: 03/16/2023] [Indexed: 06/18/2023]
Abstract
Removal of water pollutants (methylene blue dye and heavy metals) was achieved by zinc/manganese-doped nickel ferrites (Ni1 - xMxFe2O4, where x = 0.00, 0.025, 0.10). Degradation of dye was achieved under natural solar light illumination. Degradation studies of dye were conducted under different parameters such as contact time-80 min, dye's concentration-5 mg/L, pH-7, and dosage of ferrites-15 mg. The adsorption of dye was studied using non-linear kinetics models (pseudo-first-order and pseudo-second-order) and isotherm models (Langmuir and Freundlich). The adsorption of dye followed pseudo-first-order kinetics (R2 = 0.99377) than second-order kinetics (R2 = 0.98063) and Langmuir isotherm model (R2 = 0.96095) than Freundlich model (R2 = 0.95962) with maximum adsorption efficiency of 29.62 mg/g. Doping of nickel ferrites caused an increase in the removal percentage of methylene blue dye (80 to 90%) and inorganic effluents (75 to 95% for lead and 47 to 82% for cadmium). In addition to this, band gap energy (2.43 to 3.26 eV) (UV-Vis spectroscopy), pore radius (65.2 to 74.8 A°), and specific surface area (16.45 to 27.95 m2/g) (BET analysis) were also increased. Generally, the results of the study revealed that synthesized nanoparticles can act as potential candidate for the removal of effluents from wastewater under optimum parameters along with recyclability, reusability, and separation under the influence of a magnetic field.
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Affiliation(s)
- Seema Kumari
- Department of Chemistry, Career Point University, Bhoranj (Tikker-Kharwarian), MDR 35, Hamirpur, Himachal Pradesh, 176041, India
| | - Rahul Sharma
- Department of Chemistry, Career Point University, Bhoranj (Tikker-Kharwarian), MDR 35, Hamirpur, Himachal Pradesh, 176041, India
| | - Nitika Thakur
- Department of Biotechnology, Shoolini University of Biotechnology and Management Sciences, Solan, Himachal Pradesh, 173229, India
| | - Asha Kumari
- Department of Chemistry, Career Point University, Bhoranj (Tikker-Kharwarian), MDR 35, Hamirpur, Himachal Pradesh, 176041, India.
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Sharma M, Sharma S, Paavan, Gupta M, Goyal S, Talukder D, Akhtar MS, Kumar R, Umar A, Alkhanjaf AAM, Baskoutas S. Mechanisms of microbial resistance against cadmium - a review. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2024; 22:13-30. [PMID: 38887775 PMCID: PMC11180082 DOI: 10.1007/s40201-023-00887-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 11/15/2023] [Indexed: 06/20/2024]
Abstract
The escalating cadmium influx from industrial activities and anthropogenic sources has raised serious environmental concerns due to its toxic effects on ecosystems and human health. This review delves into the intricate mechanisms underlying microbial resistance to cadmium, shedding light on the multifaceted interplay between microorganisms and this hazardous heavy metal. Cadmium overexposure elicits severe health repercussions, including renal carcinoma, mucous membrane degradation, bone density loss, and kidney stone formation in humans. Moreover, its deleterious impact extends to animal and plant metabolism. While physico-chemical methods like reverse osmosis and ion exchange are employed to mitigate cadmium contamination, their costliness and incomplete efficacy necessitate alternative strategies. Microbes, particularly bacteria and fungi, exhibit remarkable resilience to elevated cadmium concentrations through intricate resistance mechanisms. This paper elucidates the ingenious strategies employed by these microorganisms to combat cadmium stress, encompassing metal ion sequestration, efflux pumps, and enzymatic detoxification pathways. Bioremediation emerges as a promising avenue for tackling cadmium pollution, leveraging microorganisms' ability to transform toxic cadmium forms into less hazardous derivatives. Unlike conventional methods, bioremediation offers a cost-effective, environmentally benign, and efficient approach. This review amalgamates the current understanding of microbial cadmium resistance mechanisms, highlighting their potential for sustainable remediation strategies. By unraveling the intricate interactions between microorganisms and cadmium, this study contributes to advancing our knowledge of bioremediation approaches, thereby paving the way for safer and more effective cadmium mitigation practices.
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Affiliation(s)
- Monu Sharma
- Department of Biosciences and Technology, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, 133207 Haryana India
| | - Sonu Sharma
- Department of Biosciences and Technology, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, 133207 Haryana India
| | - Paavan
- Department of Biotechnology, Ambala College of Engineering and Applied Research, Devsthali, Ambala, 133101 Haryana India
| | - Mahiti Gupta
- Department of Biosciences and Technology, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, 133207 Haryana India
| | - Soniya Goyal
- Department of Biosciences and Technology, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, 133207 Haryana India
| | - Daizee Talukder
- Department of Biosciences and Technology, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, 133207 Haryana India
| | - Mohd. Sayeed Akhtar
- Department of Botany, Gandhi Faiz-E-Aam College, Shahjahanpur, 242001 Uttar Pradesh India
| | - Raman Kumar
- Department of Biosciences and Technology, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, 133207 Haryana India
| | - Ahmad Umar
- Department of Chemistry, Faculty of Science and ArtsPromising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran, 11001 Kingdom of Saudi Arabia
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210 USA
| | - Abdulrab Ahmed M. Alkhanjaf
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Najran University, 11001 Najran, Saudi Arabia
| | - Sotirios Baskoutas
- Department of Materials Science, University of Patras, 26500 Patras, Greece
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7
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Dos Santos BLB, Vieira Y, Abou Taleb MF, Ibrahim MM, Reis MA, do Nascimento BF, Oliveira MLS, Silva LFO, Dotto GL. Remediation through the coordinated use of local rice husk residues for the selective adsorption of iron and nickel in real landfill leachate. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 358:120893. [PMID: 38640761 DOI: 10.1016/j.jenvman.2024.120893] [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: 11/06/2023] [Revised: 02/09/2024] [Accepted: 04/10/2024] [Indexed: 04/21/2024]
Abstract
Herein, we demonstrate the prospects of tackling several environmental problems by transforming a local rice husk residue into an effective adsorbent, which was then applied for the treatment of real landfill leachate (LL). The study focused on establishing (i) the effect of simple washing on morphological aspects, (ii) evaluating target adsorption capacity for total iron (Fe) and nickel (Ni), (iii) determining regeneration and reuse potential of the adsorbent and (iv) complying to the requirements of worldwide legislations for reuse of treated LL wastewater. The adsorbent was prepared by employing a simple yet effective purification process that can be performed in situ. The LL was collected post-membrane treatment, and the characterizations revealed high concentrations of Fe, Ni, and organic matter content. The simple washing affected the crystallinity, resulting in structural alterations of the adsorbents, also increasing the porosity and specific surface. The adsorption process for Ni occurred naturally at pH 6, but adjusting the pH to 3 significantly improved removal efficiency and adsorption capacity for total Fe. The kinetics were accurately described by the pseudo-second-order model, while the Langmuir model provided a better fit for the isotherms. The adsorbent was stable for 5 reuses, and the metals adsorbed were recovered through basic leaching. The removal capacities achieved underscore the remarkable effectiveness of the process, ensuring the treated LL wastewater meets rigorous global environmental legislations for safe use in irrigation. Thus, by employing the compelling methods herein optimized it is possible to refer to the of solving three environmental problems at once.
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Affiliation(s)
- Bárbara Luiza Brandenburg Dos Santos
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-8, 97105-900, Santa Maria, RS, Brazil
| | - Yasmin Vieira
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-8, 97105-900, Santa Maria, RS, Brazil
| | - Manal F Abou Taleb
- Department of Chemistry, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia
| | - Mohamed M Ibrahim
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Mirela Araujo Reis
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-8, 97105-900, Santa Maria, RS, Brazil
| | - Bruna Figueiredo do Nascimento
- Department of Chemical Engineering, Federal University of Pernambuco, Av. Prof. Moraes Rego, 1235, 50670-910, Recife, PE, Brazil
| | | | | | - Guilherme Luiz Dotto
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-8, 97105-900, Santa Maria, RS, Brazil.
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8
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Sen N, Shefa NR, Reza K, Shawon SMAZ, Rahman MW. Adsorption of crystal violet dye from synthetic wastewater by ball-milled royal palm leaf sheath. Sci Rep 2024; 14:5349. [PMID: 38438395 PMCID: PMC11226625 DOI: 10.1038/s41598-024-52395-8] [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] [Accepted: 01/18/2024] [Indexed: 03/06/2024] Open
Abstract
The current study shows that using a batch approach to remove crystal violet dye from synthetic wastewater is feasible when using royal palm leaf sheath powder as an adsorbent. In order to investigate the effects of many parameters, including starting concentration, pH effect, dye concentration, adsorbent dose, contact time, and temperature, experiments were carried out under various operating conditions. Maximum removal was obtained at pH 6 and at a concentration of 100 ppm, which are considered as ideal values. The influence of pH and dye concentration was shown to be substantial. Langmuir, Freundlich, and Temkin isotherm models were fitted to equilibrium data. The Langmuir isotherm model, which showed a maximum monolayer adsorption capacity of 454.5455 mg/g, best described the equilibrium data. The Pseudo-second-order kinetic model was found to closely resemble rather than the first-order and intra-particle diffusion models. Standard enthalpy (∆H◦), entropy (∆S◦), and free energy (∆G◦) were evaluated as thermodynamic parameters. It was discovered that the adsorption contact was endothermic in nature. The outcomes highlight the applicability of the inexpensive, locally accessible adsorbent in the specialty area of wastewater treatment and can be used in commercial dye-enriched effluent.
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Affiliation(s)
- Neloy Sen
- Department of Chemical Engineering, Jashore University of Science and Technology, Jashore, 7408, Bangladesh
| | - Nawrin Rahman Shefa
- Department of Chemical Engineering, Jashore University of Science and Technology, Jashore, 7408, Bangladesh
| | - Kismot Reza
- Department of Chemical Engineering, Jashore University of Science and Technology, Jashore, 7408, Bangladesh
| | - Sk Md Ali Zaker Shawon
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - Md Wasikur Rahman
- Department of Chemical Engineering, Jashore University of Science and Technology, Jashore, 7408, Bangladesh.
- Department of Physics and Astronomy, University of Texas Rio Grande Valley, 1201 West University Drive, Edinburg, TX, 78539, USA.
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Abed K, Ahmed E, Shehzad H, Sharif A, Farooqi ZH, Liu Z, Zhou L, Ouyang J, Begum R, Irfan A, Chaudhry AR, Din MI. An innovative approach to synthesize graft copolymerized acetylacetone chitosan/surface functionalized alginate/rutile for efficient Ni(II) uptake from aqueous medium. Int J Biol Macromol 2023:125327. [PMID: 37302624 DOI: 10.1016/j.ijbiomac.2023.125327] [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: 05/15/2023] [Revised: 06/03/2023] [Accepted: 06/08/2023] [Indexed: 06/13/2023]
Abstract
In this study, an innovative approach is followed to synthesize graft copolymerized chitosan with acetylacetone (AA-g-CS) through free-radical induced grafting. Afterwards, AA-g-CS and rutile have been intercalated uniformly into amino carbamate alginate matrix to prepare its biocomposite hydrogel beads of improved mechanical strength having different mass ratio i.e., 5.0 %, 10.0 % 15.0 % and 20.0 % w/w. Biocomposites have been thoroughly characterized through FTIR, SEM and EDX analysis. Isothermal sorption data showed good fit with Freundlich model as conferred from regression coefficient (R2 ≈ 0.99). Kinetic parameters were evaluated through non-linear (NL) fitting of different kinetic models. Experimental kinetic data exhibited close agreement to quasi-second order kinetic model (R2 ≈ 0.99) which reveals that chelation between heterogeneous grafted ligands and Ni(II) is occurring through complexation. Thermodynamic parameters were evaluated at different temperatures to observe the sorption mechanism. The negative values of ΔG° (-22.94, -23.56, -24.35 and - 24.94 kJ/mol), positive ΔH° (11.87 kJ/mol) and ΔS° (0.12 kJ/molK-1) values indicated that the removal process is spontaneous and endothermic. The maximum monolayer sorption capacity (qm) was figured as 246.41 mg/g at 298 K and pH = 6.0. Hence, 3AA-g-CS/TiO2 could be better candidate for economic recovery of Ni(II) ions from waste effluents.
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Affiliation(s)
- Khalilullah Abed
- School of Chemistry, University of the Punjab, New Campus, Lahore 54590, Pakistan
| | - Ejaz Ahmed
- School of Chemistry, University of the Punjab, New Campus, Lahore 54590, Pakistan.
| | - Hamza Shehzad
- School of Chemistry, University of the Punjab, New Campus, Lahore 54590, Pakistan; School of Chemistry and Materials Science, East China University of Technology, 418 Guanglan Road, 330013 Nanchang, China.
| | - Ahsan Sharif
- School of Chemistry, University of the Punjab, New Campus, Lahore 54590, Pakistan
| | - Zahoor H Farooqi
- School of Chemistry, University of the Punjab, New Campus, Lahore 54590, Pakistan
| | - Zhirong Liu
- School of Chemistry and Materials Science, East China University of Technology, 418 Guanglan Road, 330013 Nanchang, China
| | - Limin Zhou
- State Key Laboratory for Nuclear Resources and Environment, East China University of Technology, 418 Guanglan Road, 330013 Nanchang, China
| | - Jinbo Ouyang
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang 330013, China
| | - Robina Begum
- School of Chemistry, University of the Punjab, New Campus, Lahore 54590, Pakistan
| | - Ahmad Irfan
- Department of Chemistry, College of Science, King Khalid University, Abha 61413, Saudi Arabia
| | - Aijaz Rasool Chaudhry
- Department of Physics, College of Science, University of Bisha, Bisha 61922, P.O. Box 551, Saudi Arabia
| | - Muhammad Imran Din
- School of Chemistry, University of the Punjab, New Campus, Lahore 54590, Pakistan
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10
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Abu-Elala NM, Khattab MS, AbuBakr HO, Helmy S, Hesham A, Younis NA, Dawood MAO, El Basuini MF. Neem leaf powder (Azadirachta indica) mitigates oxidative stress and pathological alterations triggered by lead toxicity in Nile tilapia (Oreochromis niloticus). Sci Rep 2023; 13:9170. [PMID: 37280317 DOI: 10.1038/s41598-023-36121-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 05/30/2023] [Indexed: 06/08/2023] Open
Abstract
This study investigated the clinical and pathological symptoms of waterborne lead toxicity in wild Nile tilapia collected from a lead-contaminated area (the Mariotteya Canal: Pb = 0.6 ± 0.21 mg L-1) and a farmed fish after 2 weeks of experimental exposure to lead acetate (5-10 mg L-1) in addition to evaluating the efficacy of neem leaf powder (NLP) treatment in mitigating symptoms of lead toxicity. A total of 150 fish (20 ± 2 g) were alienated into five groups (30 fish/group with three replicates). G1 was assigned as a negative control without any treatments. Groups (2-5) were exposed to lead acetate for 2 weeks at a concentration of 5 mg L-1 (G2 and G3) or 10 mg L-1 (G4 and G5). During the lead exposure period, all groups were reared under the same conditions, while G3 and G5 were treated with 1 g L-1 NLP. Lead toxicity induced DNA fragmentation and lipid peroxidation and decreased the level of glutathione and expression of heme synthesis enzyme delta aminolaevulinic acid dehydratase (ALA-D) in wild tilapia, G2, and G4. NLP could alleviate the oxidative stress stimulated by lead in G3 and showed an insignificant effect in G5. The pathological findings, including epithelial hyperplasia in the gills, edema in the gills and muscles, degeneration and necrosis in the liver and muscle, and leukocytic infiltration in all organs, were directly correlated with lead concentration. Thus, the aqueous application of NLP at 1 g L-1 reduced oxidative stress and lowered the pathological alterations induced by lead toxicity.
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Affiliation(s)
- Nermeen M Abu-Elala
- Department of Aquatic Animal Medicine, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
- Faculty of Veterinary Medicine, King Salman International University, South Sinai, Egypt
| | - Marwa S Khattab
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Huda O AbuBakr
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Samah Helmy
- Department of Immunology, Animal Health Research Institute, Dokki, Giza, Egypt
| | - Ahmed Hesham
- Department of Chemistry, Faculty of Science, Suez Canal University, Ismailia, 41522, Egypt
- Middle East for Veterinary Vaccine (MEVAC), El-Salihya El-Gededa, 44671, El-Sharkia, Egypt
| | - Nehal A Younis
- Department of Aquatic Animal Medicine, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Mahmoud A O Dawood
- Department of Animal Production, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh, 33516, Egypt
- The Center for Applied Research on the Environment and Sustainability, The American University in Cairo, Cairo, 11835, Egypt
| | - Mohammed F El Basuini
- Faculty of Agriculture, Tanta University, Tanta, 31527, Egypt.
- Faculty of Desert Agriculture, King Salman International University, South Sinai, 46618, Egypt.
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11
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Khan SU, Kumar A, Prasad M, Upadhyay D, Mehta BK, Shashikumara P, Tamboli P. Effect of soil amendments on the sorption behavior of atrazine in sandy loam soil. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:686. [PMID: 37195375 DOI: 10.1007/s10661-023-11292-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 04/24/2023] [Indexed: 05/18/2023]
Abstract
The sorption behavior of pesticides applied during cultivation of crops is affected by amendments such as farm yard manure (FYM) and vermicompost (VC) during land preparation. Among pesticides, atrazine, a widely used herbicide in many crops, was analyzed for its kinetics and sorption behavior through the addition of FYM and VC in sandy loam soil. The pseudo-second-order (PSO) model best fit the kinetics results in the recommended dose of FYM and VC mixed soil. More atrazine was sorbed onto VC mixed soil than FYM mixed soil. In comparison to control (no amendment), both FYM and VC (1, 1.5, and 2%) increased atrazine adsorption, but the effect varied with dosage and type of amendment. The Freundlich adsorption isotherm adequately explained atrazine adsorption in soil/soil + (FYM/VC) mixtures, and the adsorption was highly nonlinear. The values of Gibb's free energy change (ΔG) were negative for both adsorption and desorption in soil/soil + (FYM/VC) mixtures, suggesting sorption was exothermic and spontaneous in nature. The results revealed that the application of amendments used by farmers interferes the availability, mobility, and infiltration of atrazine in the soil. Therefore, the findings of this study suggest that amendments such as FYM and VC can be effectively used to minimize the residual toxicity of atrazine-treated ago-ecosystems in tropical and sub-tropical regions.
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Affiliation(s)
| | - Anup Kumar
- ICAR-Indian Grassland and Fodder Research Institute, Jhansi, Uttar Pradesh, India.
| | - Mahendra Prasad
- ICAR-Indian Grassland and Fodder Research Institute, Jhansi, Uttar Pradesh, India
| | - Deepak Upadhyay
- ICAR-Indian Grassland and Fodder Research Institute, Jhansi, Uttar Pradesh, India
| | - Brijesh K Mehta
- ICAR-Indian Grassland and Fodder Research Institute, Jhansi, Uttar Pradesh, India
| | - P Shashikumara
- ICAR-Indian Grassland and Fodder Research Institute, Jhansi, Uttar Pradesh, India
| | - Pooja Tamboli
- ICAR-Indian Grassland and Fodder Research Institute, Jhansi, Uttar Pradesh, India
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12
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Cui W, Li X, Duan W, Xie M, Dong X. Heavy metal stabilization remediation in polluted soils with stabilizing materials: a review. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023:10.1007/s10653-023-01522-x. [PMID: 36906650 DOI: 10.1007/s10653-023-01522-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 02/27/2023] [Indexed: 06/18/2023]
Abstract
The remediation of soil contaminated by heavy metals has long been a concern of academics. This is due to the fact that heavy metals discharged into the environment as a result of natural and anthropogenic activities may have detrimental consequences for human health, the ecological environment, the economy, and society. Metal stabilization has received considerable attention and has shown to be a promising soil remediation option among the several techniques for the remediation of heavy metal-contaminated soils. This review discusses various stabilizing materials, including inorganic materials like clay minerals, phosphorus-containing materials, calcium silicon materials, metals, and metal oxides, as well as organic materials like manure, municipal solid waste, and biochar, for the remediation of heavy metal-contaminated soils. Through diverse remediation processes such as adsorption, complexation, precipitation, and redox reactions, these additives efficiently limit the biological effectiveness of heavy metals in soils. It should also be emphasized that the effectiveness of metal stabilization is influenced by soil pH, organic matter content, amendment type and dosage, heavy metal species and contamination level, and plant variety. Furthermore, a comprehensive overview of the methods for evaluating the effectiveness of heavy metal stabilization based on soil physicochemical properties, heavy metal morphology, and bioactivity has also been provided. At the same time, it is critical to assess the stability and timeliness of the heavy metals' long-term remedial effect. Finally, the priority should be on developing novel, efficient, environmentally friendly, and economically feasible stabilizing agents, as well as establishing a systematic assessment method and criteria for analyzing their long-term effects.
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Affiliation(s)
- Wenwen Cui
- College of Civil Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, Taiyuan, 030024, Shanxi, People's Republic of China
| | - Xiaoqiang Li
- College of Civil Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, Taiyuan, 030024, Shanxi, People's Republic of China
| | - Wei Duan
- College of Civil Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, Taiyuan, 030024, Shanxi, People's Republic of China
| | - Mingxing Xie
- College of Civil Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, Taiyuan, 030024, Shanxi, People's Republic of China
| | - Xiaoqiang Dong
- College of Civil Engineering, Taiyuan University of Technology, No. 79 West Yingze Street, Taiyuan, 030024, Shanxi, People's Republic of China.
- Shanxi Key Laboratory of Civil Engineering Disaster Prevention and Control, No. 79 West Yingze Street, Taiyuan, 030024, Shanxi, People's Republic of China.
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13
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Mushtaq S, Bareen FE, Tayyeb A. Equilibrium kinetics and thermodynamic studies on biosorption of heavy metals by metal-resistant strains of Trichoderma isolated from tannery solid waste. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:10925-10954. [PMID: 36088439 DOI: 10.1007/s11356-022-22860-w] [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: 04/07/2022] [Accepted: 08/30/2022] [Indexed: 06/15/2023]
Abstract
This study was aimed at finding the metal sorption potential of six indigenous Trichoderma strains by using batch experiments for Cd (II), Cr (VI), Cu (II), and Pb (II). Trichoderma atrobrunneum showed maximum metal biosorption potential at 800 mg L-1 of initial concentration. Two adsorption isotherm models, (1) Langmuir (2) Freundlich models, were employed on the biosorption data obtained at various initial metal concentrations (10 mg L-1-200 mg L-1) and pseudo-first (PSI) and pseudo-second (PSII) order equilibrium kinetic models were subjected to data of agitation time (3-7 days). A maximum correlation coefficient value (R2) of ≤ 1 was observed for the Langmuir and PSII model. Results revealed that pH 6-7 was the best for metal sorption, while metal removal efficiency was increased by increasing temperature (298 K, 303 K, 308 K, 313 K). The results of thermodynamic study parameters (∆G°, ∆H°, ∆S°) indicated that heavy metal biosorption by Trichoderma strains was an endothermic, spontaneous, and feasible process. Moreover, surface characterization analysis through SEM, BET, FTIR, and XRD showed that T. atrobrunneum and Trichoderma sp. could adsorb more metal ions when grown in high metal concentrations. The results indicate that living biomass of T. atrobrunneum and Trichoderma sp. is an effective multi-metal biosorbent that can be used for efficacious bioremediation of bio-treatment of heavy metal polluted wastewater.
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Affiliation(s)
- Sobia Mushtaq
- Institute of Botany, University of the Punjab, Lahore, Pakistan
| | - Firdaus E Bareen
- Institute of Botany, University of the Punjab, Lahore, Pakistan.
- Institute of Molecular Biology and Biotechnology, The University of Lahore, Lahore, Pakistan.
| | - Asima Tayyeb
- School of Biological Sciences, University of the Punjab, Lahore, Pakistan
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Sahoo JK, Somu P, Narayanasamy S, Sahoo SK, Lee YR, Baalakrishnan DR, RajaSekhar Reddy NV, Rajendiran S. WITHDRAWN: Heavy metal ions and dyes removal from aqueous solution using Aloevera-based biosorbent: A systematic review. ENVIRONMENTAL RESEARCH 2023; 216:114669. [PMID: 36404520 DOI: 10.1016/j.envres.2022.114669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 09/30/2022] [Accepted: 10/24/2022] [Indexed: 06/16/2023]
Abstract
This article has been withdrawn: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article has been withdrawn at the request of the authors, editor and publisher. The publisher regrets that an error occurred which led to the premature publication of this paper. The publisher apologizes to the readers for this unfortunate erro
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Affiliation(s)
- Jitendra Kumar Sahoo
- Department of Chemistry, GIET University, Gunupur, Rayagada, Odisha, 765022, India
| | - Prathap Somu
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea; Department of Bioengineering, Institute of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 600124, India
| | - Saranya Narayanasamy
- Department of Bioengineering, Institute of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 600124, India
| | - Shraban Kumar Sahoo
- School of Applied Sciences, Centurion University of Technology and Management, Odisha, 752050, India
| | - Yong Rok Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
| | - D R Baalakrishnan
- Institute for Science, Engineering and Technology Research, Tamil Nadu, India.
| | - N V RajaSekhar Reddy
- Department of Information Technology, MLR Institute of Technology, Hyderabad, Telangana, India
| | - S Rajendiran
- Institute for Science, Engineering and Technology Research, Tamil Nadu, India
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15
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Carbon nanotubes/ polyacrylonitrile composite nanofiber mats for highly efficient dye adsorption. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129703] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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16
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Liu D, Gu W, Zhou L, Lei J, Wang L, Zhang J, Liu Y. From biochar to functions: Lignin induced formation of Fe3C in carbon/Fe composites for efficient adsorption of tetracycline from wastewater. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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17
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Wu H, Kim SY, Ito T, Miwa M, Matsuyama S. One-pot synthesis of silica-gel-based adsorbent with Schiff base group for the recovery of palladium ions from simulated high-level liquid waste. NUCLEAR ENGINEERING AND TECHNOLOGY 2022. [DOI: 10.1016/j.net.2022.04.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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18
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Shehzad H, Farooqi ZH, Ahmed E, Sharif A, Razzaq S, Mirza FN, Irfan A, Begum R. Synthesis of hybrid biosorbent based on 1,2-cyclohexylenedinitrilotetraacetic acid modified crosslinked chitosan and organo-functionalized calcium alginate for adsorptive removal of Cu(II). Int J Biol Macromol 2022; 209:132-143. [PMID: 35390398 DOI: 10.1016/j.ijbiomac.2022.04.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 03/30/2022] [Accepted: 04/03/2022] [Indexed: 12/27/2022]
Abstract
The present study is based on the synthesis of a novel hybrid biosorbent using 1,2-cyclohexylenedinitrilotetraacetic acid modified crosslinked chitosan and amino-thiocarbamate moiety functionalized sodium alginate (CDTA-CS/TSC-CA). The fabricated sorbent was employed to investigate the efficient recovery of Cu(II) from aqueous media. CDTA-CS/TSC-CA was characterized using Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). Analysis confirmed the successful modification of both biopolymers and subsequent loading of Cu(II) ions. CDTA-CS/TSC-CA was casted in the form of hydrogel beads having different CDTA-CS to TSC-CA mass ratios i.e., 10.0-40.0% by mass. The hydrogel beads 4CDTA-CS/TSC-CA with CDTA-CS/TSC-CA mass ratio of 40.0% was found most effective for copper sorption. Equilibrium sorption results showed that initial concentration of copper, medium pH, contact time, sorbent dosage and temperature influenced the sorption capacity (qe). Rate of sorption data was interpreted using different kinetic models and found best fitted with pseudo second order rate expression (R2 ≈ 0.99), illustrating that the rate determining step includes the electron density transfer from sorbent coordination sites to central copper ions. Crank's RIDE equation and Elovich chemisorption model (ECM) revealed the presence of two sorption phases, initially rapid sorption followed by comparatively a slow uptake. Equilibrium sorption data was well depicted by Langmuir model and maximum monolayer adsorption capacity (qm) was computed as 276.53 mg·g-1 at 298 K. Standard Gibbs free energy change, ∆G° (-19.99, -20.18 and -20.36 kJ/ mol), standard enthalpy change, ∆H° (-8.95 kJmol) and standard entropy change, ∆S° (0.04 kJ/mol K-1) values suggested that the adsorption process is spontaneous and exothermic. Hence, 4CDTA-CS/TSC-CA was found efficient biosorbent for copper removal from its dilute effluents.
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Affiliation(s)
- Hamza Shehzad
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
| | - Zahoor H Farooqi
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan.
| | - Ejaz Ahmed
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
| | - Ahsan Sharif
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan.
| | - Sana Razzaq
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
| | - Fatima Noor Mirza
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
| | - Ahmad Irfan
- Department of Chemistry, Faculty of Science, King Khalid University, Abha 61413, Saudi Arabia; Research Center for Advanced Materials Science, King Khalid University, Abha 61413, Saudi Arabia
| | - Robina Begum
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
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19
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Jiang X, Yin X, Tian Y, Zhang S, Liu Y, Deng Z, Lin Y, Wang L. Study on the mechanism of biochar loaded typical microalgae Chlorella removal of cadmium. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 813:152488. [PMID: 34963608 DOI: 10.1016/j.scitotenv.2021.152488] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/13/2021] [Accepted: 12/13/2021] [Indexed: 06/14/2023]
Abstract
Coconut shell activated carbon (Csac) is one of the most widely used materials to remove cadmium (Cd) from contaminated water. A large diversity of microorganisms exists in various aquatic systems and may aid Cd removal by Csac. In this study, we explored the reactions of Csac with microalgae (Chlorella) in Cd-containing media. The results of scanning electron microscope (SEM) imaging, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), superconducting pulse-Fourier transform nuclear magnetic resonance (pulse-FT NMR) and X-ray photoelectron spectroscopy (XPS) indicated that Chlorella could adhere in the micropores of Csac formed Csac@Chlorella composite adsorbent loading Chlorella. Furthermore, the composite adsorbent surface had abundant functional groups such -COOH, -OH and C-O-C, which served as active sites during the adsorption process. Compared with Csac, Csac@Chlorella had an enhanced Cd adsorption capacity evidently. The results showed that pH 8, 0.2 g Csac, OD680 of 0.1 for Chlorella were optimal conditions for maximum Cd adsorption capacity within one hour contact time. Furthermore, the Cd adsorption process was well described by the pseudo-second-order and Langmuir adsorption isotherm models. The models revealed that the adsorption process was mainly based on chemical adsorption of a single molecular layer, accompanied by electrostatic attraction, complexation and intracellular adsorption, amongst other parameters. Collectively, the findings illustrate that the microalgae (Chlorella)-Csac-Cd interaction is complex and will thus have immense interest to a broad range of biological, environmental, and geoscience communities.
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Affiliation(s)
- Xiyan Jiang
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan 250014, China
| | - Xixiang Yin
- Shandong Jinan Eco-Environmental Monitoring Center, Jinan 250014, China.
| | - Yong Tian
- Shandong Jinan Eco-Environmental Monitoring Center, Jinan 250014, China
| | - Shuxi Zhang
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan 250014, China
| | - Yuanyuan Liu
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan 250014, China
| | - Zhiwen Deng
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan 250014, China
| | - Yunliang Lin
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan 250014, China
| | - Lihong Wang
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan 250014, China.
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20
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Mozaffari Majd M, Kordzadeh-Kermani V, Ghalandari V, Askari A, Sillanpää M. Adsorption isotherm models: A comprehensive and systematic review (2010-2020). THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 812:151334. [PMID: 34748826 DOI: 10.1016/j.scitotenv.2021.151334] [Citation(s) in RCA: 64] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 10/26/2021] [Accepted: 10/26/2021] [Indexed: 06/13/2023]
Abstract
Among numerous methods developed in purification and separation industries, the adsorption process has received considerable attention due to its inexpensive, facile, and eco-friendly nature. The importance of the adsorption process causes extraordinary endeavors for modeling the adsorption isotherms during the years; thus, myriads of research have been conducted and many reviews have been published. In this paper, we have attempted to gather the most widely used adsorption isotherms and their related definitions, along with examples of correlated work of the recent decade. In the present review, 37 adsorption isotherms with about 400 references have been collected from the research published in the period of 2010-2020. The adsorption isotherms utilized are alphabetically organized for ease of access. The parameters of each isotherm, as well as the applicable definitions, are presented in the table, in addition to being discussed in the text. Another table is provided for the practical use of researchers, featuring the usage of the related isotherms in peer-reviewed studies.
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Affiliation(s)
- Mahdieh Mozaffari Majd
- Kerman Momtazan Cement Company, 32(nd) km Kerman-Tehran Highway, 7637158135, Kerman, Iran
| | - Vahid Kordzadeh-Kermani
- Department of Chemical Engineering, Iran University of Science and Technology, Narmak, Tehran 16846-13114, Iran
| | - Vahab Ghalandari
- Kerman Momtazan Cement Company, 32(nd) km Kerman-Tehran Highway, 7637158135, Kerman, Iran
| | - Anis Askari
- Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Mika Sillanpää
- Faculty of Science and Technology, School of Applied Physics, University Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia; School of Chemistry, Shoolini University, Solan, Himachal Pradesh 173229, India; Department of Biological and Chemical Engineering, Aarhus University, Nørrebrogade 44, 8000 Aarhus C, Denmark.
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21
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Resource Recycling Utilization of Distillers Grains for Preparing Cationic Quaternary Ammonium—Ammonium Material and Adsorption of Acid Yellow 11. SUSTAINABILITY 2022. [DOI: 10.3390/su14042469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Using distillers grains (DG) as raw material after pre-treatment with sodium hydroxide (NaOH) and modified with cationic etherification agent 3-chloro-2-hydroxypropyltrimethylammonium chloride (CHPTAC), cationic quaternary ammonium distillers grains adsorption material (CDG) was successfully prepared. The optimal adsorption conditions were an adsorption temperature of 25 °C, adsorption time of 180 min, amount of adsorbent at 8.5 g/L, initial dye concentration of 100 mg/L, and pH of dye solution 7.0. The structure of CDG was characterized by FTIR, EDS, SEM, BET, ultraviolet spectrum analysis, and analysis of the zeta potential, while the adsorption mechanism was studied by adsorption kinetics, isotherms, and thermodynamics. The results showed that CHPTAC modified the distillers grains successfully and induced the formation of CDG with a large number of pore structures and good adsorption effect. The highest adsorption yield was above 98%, while after eight rounds of adsorption–desorption experiments, the adsorption rate was 81.80%. The adsorption mechanism showed that the adsorption process of acid yellow 11 (AY11) by CDG conforms to the pseudo-second-order kinetic model, mainly with chemical and physical adsorption such as pore adsorption and electrostatic adsorption. Thermodynamics conforms to the Freundlich isothermal model, and the adsorption process is a spontaneous, endothermic and entropy-increasing process.
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Removal of Copper, Nickel, and Zinc Ions from an Aqueous Solution through Electrochemical and Nanofiltration Membrane Processes. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app12010280] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Heavy metal contamination in water is a major health concern, directly related to rapid growth in industrialization, urbanization, and modernization in agriculture. Keeping this in view, the present study has attempted to develop models for the process optimization of nanofiltration (NF) membrane and electrocoagulation (EC) processes for the removal of copper, nickel, and zinc from an aqueous solution, employing the response surface methodology (RSM). The variable factors were feed concentration, temperature, pH, and pressure for the NF membrane process; and time, solution pH, feed concentration, and current for the EC process, respectively. The central composite design (CCD), the most commonly used fractional factorial design, was employed to plan the experiments. RSM models were statistically analyzed using analysis of variance (ANOVA). For the NF membrane, the rejection of Zn, Ni, and Cu was observed as 98.64%, 90.54%, and 99.79% respectively; while the removal of these through the EC process was observed as 99.81%, 99.99%, and 99.98%, respectively. The above findings and a comparison with the conventional precipitation and adsorption processes apparently indicate an advantage in employing the NF and EC processes. Further, between the two, the EC process emerged as more efficient than the NF process for the removal of the studied metals.
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Jiang Z, Ho SH, Wang X, Li Y, Wang C. Application of biodegradable cellulose-based biomass materials in wastewater treatment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 290:118087. [PMID: 34488155 DOI: 10.1016/j.envpol.2021.118087] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/28/2021] [Accepted: 08/30/2021] [Indexed: 06/13/2023]
Abstract
Water bodies contain a large number of harmful environmental pollutants, including oil, heavy metal ions and dyes, which has become a major global problem. The current work focusses on the development and future prospect of sustainable application of biodegradable cellulose-biomass materials in water treatment, considering that they show an important prospect in wastewater treatment. This paper summarizes the advantages and disadvantages of cellulose-biomass materials in removing harmful substances and pollutants from water and the key problems the technology faces. Cellulose-biomass material has unique structure, is environment friendly, degradable, renewable and provides low energy cost benefits, among other advantages. In this paper, the research progress of wastewater treatment in recent years is reviewed from the following three aspects: oil-water separation, heavy metal ions in water, and dye adsorption. The future research direction is also discussed.
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Affiliation(s)
- Zishuai Jiang
- Key Laboratory of Bio-Based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin, 150040, PR China
| | - Shih-Hsin Ho
- State Key Laboratory of Urban Water Resources and Environment, Harbin Institute of Technology, Harbin, 150040, PR China
| | - Xin Wang
- Key Laboratory of Bio-Based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin, 150040, PR China
| | - Yudong Li
- Key Laboratory of Bio-Based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin, 150040, PR China
| | - Chengyu Wang
- Key Laboratory of Bio-Based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin, 150040, PR China.
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Bilgic A. Novel BODIPY-based fluorescent Lycopodium clavatum sporopollenin microcapsules for detection and removal of Cu(II) ions. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127658] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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A State-of-the-Art Review on Biowaste Derived Chitosan Biomaterials for Biosorption of Organic Dyes: Parameter Studies, Kinetics, Isotherms and Thermodynamics. Polymers (Basel) 2021; 13:polym13173009. [PMID: 34503049 PMCID: PMC8433961 DOI: 10.3390/polym13173009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 08/23/2021] [Accepted: 08/25/2021] [Indexed: 02/04/2023] Open
Abstract
Chitosan is a second-most abundant biopolymer on earth after cellulose. Its unique properties have recently received particular attention from researchers to be used as a potential biosorbent for the removal of organic dyes. However, pure chitosan has some limitations that exhibit lower biosorption capacity, surface area and thermal stability than chitosan composites. The reinforcement materials used for the synthesis of chitosan composites were carbon-based materials, metal oxides and other biopolymers. This paper reviews the effects of several factors such as pH, biosorbent dosage, initial dye concentration, contact time and temperature when utilizing chitosan-based materials as biosorbent for removing of organic dyes from contaminated water. The behaviour of the biosorption process for various chitosan composites was compared and analysed through the kinetic models, isotherm models and thermodynamic parameters. The findings revealed that pseudo-second-order (PSO) and Langmuir isotherm models were best suited for describing most of the biosorption processes or organic dyes. This indicated that monolayer chemisorption of organic dyes occurred on the surface of chitosan composites. Most of the biosorption processes were endothermic, feasible and spontaneous at the low temperature range between 288 K and 320 K. Therefore, chitosan composites were proven to be a promising biosorbent for the removal of organic dyes.
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Banivaheb S, Dan S, Hashemipour H, Kalantari M. Synthesis of modified chitosan TiO2 and SiO2 hydrogel nanocomposites for cadmium removal. JOURNAL OF SAUDI CHEMICAL SOCIETY 2021. [DOI: 10.1016/j.jscs.2021.101283] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Meez E, Rahdar A, Kyzas GZ. Sawdust for the Removal of Heavy Metals from Water: A Review. Molecules 2021; 26:molecules26144318. [PMID: 34299593 PMCID: PMC8304724 DOI: 10.3390/molecules26144318] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 07/07/2021] [Accepted: 07/15/2021] [Indexed: 01/01/2023] Open
Abstract
The threat of the accumulation of heavy metals in wastewater is increasing, due to their abilities to inflict damage to human health, especially in the past decade. The world’s environmental agencies are trying to issue several regulations that allow the management and control of random disposals of heavy metals. Scientific studies have heavily focused on finding suitable materials and techniques for the purification of wastewaters, but most solutions have been rejected due to cost-related issues. Several potential materials for this objective have been found and have been compared to determine the most suitable material for the purification process. Sawdust, among all the materials investigated, shows high potential and very promising results. Sawdust has been shown to have a good structure suitable for water purification processes. Parameters affecting the adsorption mechanism of heavy metals into sawdust have been studied and it has been shown that pH, contact time and several other parameters could play a major role in improving the adsorption process. The adsorption was found to follow the Langmuir or Freundlich isotherm and a pseudo second-order kinetic model, meaning that the type of adsorption was a chemisorption. Sawdust has major advantages to be considered and is one of the most promising materials to solve the wastewater problem.
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Affiliation(s)
- Elie Meez
- Department of Chemistry, International Hellenic University, 65404 Kavala, Greece;
| | - Abbas Rahdar
- Department of Physics, University of Zabol, Zabol 98613-35856, Iran;
| | - George Z. Kyzas
- Department of Chemistry, International Hellenic University, 65404 Kavala, Greece;
- Correspondence: ; Tel.: +30-2510-462-218
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Bioremediation of Chromium by Microorganisms and Its Mechanisms Related to Functional Groups. J CHEM-NY 2021. [DOI: 10.1155/2021/7694157] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Heavy metals generated mainly through many anthropogenic processes, and some natural processes have been a great environmental challenge and continued to be the concern of many researchers and environmental scientists. This is mainly due to their highest toxicity even at a minimum concentration as they are nonbiodegradable and can persist in the aquatic and terrestrial environments for long periods. Chromium ions, especially hexavalent ions (Cr(VI)) generated through the different industrial process such as tanneries, metallurgical, petroleum, refractory, oil well drilling, electroplating, mining, textile, pulp and paper industries, are among toxic heavy metal ions, which pose toxic effects to human, plants, microorganisms, and aquatic lives. This review work is aimed at biosorption of hexavalent chromium (Cr(VI)) through microbial biomass, mainly bacteria, fungi, and microalgae, factors influencing the biosorption of chromium by microorganisms and the mechanism involved in the remediation process and the functional groups participated in the uptake of toxic Cr(VI) from contaminated environments by biosorbents. The biosorption process is relatively more advantageous over conventional remediation technique as it is rapid, economical, requires minimal preparatory steps, efficient, needs no toxic chemicals, and allows regeneration of biosorbent at the end of the process. Also, the presence of multiple functional groups in microbial cell surfaces and more active binding sites allow easy uptake and binding of a greater number of toxic heavy metal ions from polluted samples. This could be useful in creating new insights into the development and advancement of future technologies for future research on the bioremediation of toxic heavy metals at the industrial scale.
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Chen M, Wang X, Zhang H. Comparative research on selective adsorption of Pb(II) by biosorbents prepared by two kinds of modifying waste biomass: Highly-efficient performance, application and mechanism. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 288:112388. [PMID: 33774561 DOI: 10.1016/j.jenvman.2021.112388] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 03/08/2021] [Accepted: 03/12/2021] [Indexed: 06/12/2023]
Abstract
In this study, we used xanthate to modify two waste biomass materials (corn cob and chestnut shell) and prepared them as biosorbents in one step for effectively removing Pb(II) from aqueous solutions containing only Pb(II) or Pb(II), Cu(II) and Cd(II). The two biosorbents were characterized by SEM, EDS, FTIR and Zeta potential analysis, and the results of the characterization were used to explore the adsorption mechanism of Pb(II) on biosorbents. We compare the Pb(II) removal ability of the two biosorbents and the investigated factors that affect Pb(II) removal. The results show that the adsorption capacity of xanthate modified corn cob (X-CC) and xanthate modified chestnut shell (X-CS) for Pb(II) is related to pH, reaction time, temperature and initial concentrations of both adsorbent and adsorbate. The adsorption of Pb(II) on X-CC and X-CS follows Langmuir isotherm equation and quasi-secondary kinetic equation, and their fitted qm values are 166.39 and 124.84 mg g-1, respectively. The analysis shows that the biosorbent has high selectivity to Pb(II) rather than Cu(II) and Cd(II), and still maintains a high removal rate of Pb(II) in actual wastewater. The biosorbents remove metal ions mainly through ion exchange reaction and the functional group in the material complexes with the metal to form micro-precipitation. The high adsorption capacity in aqueous solution and low costs in the manufacturing process of the present biosorbents ensure that they have great potential in practical applications for treating heavy-metal contaminated surface water.
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Affiliation(s)
- Ming Chen
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China; Key Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, PR China.
| | - Xianfeng Wang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China
| | - Hao Zhang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China
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Biomass of Arthrospira platensis enriched with lithium by bioaccumulation and biosorption process. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.100950] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Carvalho JTT, Milani PA, Consonni JL, Labuto G, Carrilho ENVM. Nanomodified sugarcane bagasse biosorbent: synthesis, characterization, and application for Cu(II) removal from aqueous medium. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:24744-24755. [PMID: 33131038 DOI: 10.1007/s11356-020-11345-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 10/20/2020] [Indexed: 06/11/2023]
Abstract
Biosorption is a technique widely used in the remediation of contaminated effluents, and its main advantages are its easy applicability, high efficiency rate, versatility, and its economic viability. Associated with nanotechnology, this work proposes the use of nanocomposites of sugarcane bagasse (SB) and ferromagnetic nanoparticles (Fe3O4) in the removal of metallic ions present in contaminated water. SB is a promising adsorbent material since it is an abundant agricultural residue, easily accessed. By using the coprecipitation method, two nanocomposites were obtained from in natura (SB-NP) or acid-treated (MSB-NP) sugarcane bagasse. These materials were synthetized by impregnation of Fe3O4 to gain paramagnetic properties and to facilitate the removal of the contaminant-containing adsorbent. The characterization of the nanocomposites was performed using pHPCZ, FTIR, XRD, and SEM/EDS techniques, to evaluate the synthesis efficiency and investigate the morphology of the materials. The efficiency of magnetite impregnation on the SB was assessed by SEM/EDS and XRD, while the main functional groups (carbonyl, carboxyl, hydroxyl, amine, amide, and nitrate) responsible for adsorption were found by FTIR. In the surface charge characterization by pHPCZ sorption of dyes, it was found that negative charges are predominant. The pHPCZ for SB-NP and MSB-NP was 5.95 and 5.59, respectively, and the chosen Cu(II) adsorption pH was 6.2 ± 0.1. The adsorption equilibrium was reached between 10 and 60 min of contact time. The maximum experimental sorption capacity (SCexp) was 2.53 ± 0.09 (SB-NP) and 2.61 ± 0.01 mg/g (MSB-NP). The isotherm models applied to the experimental data were Langmuir, Freundlich, Sips, Temkin, and Dubinin-Radushkevich, and Temkin best described the adsorption phenomena for Cu(II) by SB-NP (r2 = 0.9976 and χ2 = 3.965) and MSB-NP (r2 = 0.9990 and χ2 = 1.816). Reuse cycles of the nanocomposites were also performed employing ten cycles of sorption using 50 mg/L Cu(II) solutions, after which the materials showed SCexp = 7.47 ± 0.04 mg/g (SB-NP) and 7.82 ± 0.04 mg/g (MSB-NP). Therefore, the investigated materials exhibited promising results to be used as biosorbents in the remediation of effluents contaminated with toxic metal ions, such as copper.
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Affiliation(s)
| | - Priscila Aparecida Milani
- Laboratório de Materiais Poliméricos e Biossorventes, Universidade Federal de São Carlos, Araras, SP, 13600-970, Brazil
| | - João Luiz Consonni
- Laboratório de Química e Fertilidade do Solo, Universidade Federal de São Carlos, Rodovia Anhanguera, km 174, Araras, São Paulo, CEP, 13604-900, Brazil
| | - Geórgia Labuto
- Laboratory of Integrated Sciences (LabInSciences), Department of Chemistry, Universidade Federal de São Paulo, Diadema, SP, 09913-030, Brazil
| | - Elma Neide Vasconcelos Martins Carrilho
- Laboratório de Materiais Poliméricos e Biossorventes, Universidade Federal de São Carlos, Araras, SP, 13600-970, Brazil.
- Departamento de Ciências da Natureza, Matemática e Educação, Universidade Federal de São Carlos, Araras, SP, 13600-970, Brazil.
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Oliveira MRF, do Vale Abreu K, Romão ALE, Davi DMB, de Carvalho Magalhães CE, Carrilho ENVM, Alves CR. Carnauba (Copernicia prunifera) palm tree biomass as adsorbent for Pb(II) and Cd(II) from water medium. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:18941-18952. [PMID: 31933097 DOI: 10.1007/s11356-020-07635-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Accepted: 01/06/2020] [Indexed: 06/10/2023]
Abstract
Plant-based biomass (CFB (carnauba fruit biomass)) obtained from the fruit exocarp of the species Copernicia prunifera (Mill.) H.E. Moore (carnauba) was evaluated for its viability as an adsorbent of potentially toxic metals in aqueous medium. The CFB was characterized by powder X-ray spectroscopy (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and zeta potential to investigate the morphology of the biosorbent and its interaction with water soluble metal ions of Pb and Cd. The biomass presents an amorphous structure, with negative zeta potential (- 2.59 mV), and the presence of functional groups such as O-H, C-O-C, C-H, and C=O. The removal potential of Pb(II) and Cd(II) was performed in a batch system, and monoelement solutions were tested to assess the effects of adsorbent dose and initial metal ion concentration, pH at the point of zero charge (pHPZC), sorption kinetics, and adsorption capacity. The most appropriate adsorbent concentration was 5 g/L, and sorption studies were carried out at pH 5.0 (pHPZC = 4.68), in which the surface of the adsorbent shows negative charges and favors the adsorption of metal ions. Kinetic studies showed that the pseudo-second order model best fit the experimental data, and equilibrium was reached at 120 min of contact time. The experimental sorption capacity (SCexp) for Pb and Cd was around 28 and 34 mg/g, respectively, and six different non-linear isotherm models were used to describe the sorption phenomena, among them, four with 2 parameters, i.e., Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich (DR), respectively, and two with 3 parameters, namely, SIPS and Hill. The non-linear Temkin and Freundlich isotherm models best fit the experimental data for Pb(II) and Cd(II), respectively. According to the Langmuir model, Qmax was 26 mg/g and 58 mg/g for Pb(II) and Cd(II), respectively, indicating the efficiency of CFB as a new alternative to conventional methods for the removal of potentially toxic metals from aqueous medium.
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Affiliation(s)
| | - Katiany do Vale Abreu
- Departamento de Química, Universidade Estadual do Ceará, Fortaleza, Ceará, 60.714-903, Brazil
| | | | | | | | - Elma Neide Vasconcelos Martins Carrilho
- Laboratório de Materiais Poliméricos e Biossorventes, Universidade Federal de São Carlos, Araras, 13600-970, Brazil.
- Departamento de Ciências da Natureza, Matemática e Educação, Universidade Federal de São Carlos, Araras, São Paulo, 13600-970, Brazil.
| | - Carlucio Roberto Alves
- Departamento de Química, Universidade Estadual do Ceará, Fortaleza, Ceará, 60.714-903, Brazil
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Introducing Ag2O-Ag2CO3/rGO nanoadsorbents for enhancing photocatalytic degradation rate and efficiency of Congo red through surface adsorption. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.126068] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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An emulsion-templated and amino diol-dictated porous material as an efficient and well recyclable boric acid scavenger. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125873] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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de O Salomón YL, Georgin J, Franco DSP, Netto MS, Foletto EL, Piccilli DGA, Sellaoui L, Dotto GL. Transforming pods of the species Capparis flexuosa into effective biosorbent to remove blue methylene and bright blue in discontinuous and continuous systems. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:8036-8049. [PMID: 33051842 DOI: 10.1007/s11356-020-11211-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 10/09/2020] [Indexed: 06/11/2023]
Abstract
This study investigates, for the first time, the applicability of seed pods from Capparis flexuosa as an alternative biosorbent to remove methylene blue and bright blue from aqueous medium using continuous and batch systems. The biosorbent was characterized by different techniques, whose particles presented rough surface and large pores and functional groups existing on its surface. In the batch system, an adsorptive capacity of 96.40 mg g-1 and 80% of methylene blue removal was reached with 0.9 g L-1 of adsorbent at pH 10, whereas 109.7 mg g-1 and 83% of bright blue removal was observed using 0.8 g L-1 of adsorbent at pH 2.0. The Elovich model adjusted the experimental data satisfactorily for both dyes. Tóth model for the MB best described the equilibrium data, and the Langmuir model for the bright blue both favored by the increase of temperature and dyes' concentration. The maximum capacities obtained were 280.78 mg g-1 and 342.85 mg g-1 for methylene blue and bright blue, respectively. The thermodynamic parameters indicated spontaneous processes, with endothermic behavior for both dyes. The fixed adsorption experiments using Capparis flexuosa seed pods showed adsorptive capacities of 158.65 and 205.81 mg g-1 for the methylene blue and bright blue, respectively. The overall results indicated that the pods of the Capparis flexuosa could be an ecological, effective, and economical alternative in the removal of dyes for both continuous and batch systems.
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Affiliation(s)
- Yamil L de O Salomón
- Graduate Program in Environmental Engineering, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Jordana Georgin
- Graduate Program in Civil Engineering, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Dison S P Franco
- Graduate Program in Chemical Engineering, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Matias S Netto
- Graduate Program in Chemical Engineering, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Edson L Foletto
- Graduate Program in Chemical Engineering, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Daniel G A Piccilli
- Graduate Program in Environmental Engineering, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Lotfi Sellaoui
- Laboratory of Quantum and Statistical Physics, LR18ES18, Faculty of Sciences of Monastir, Monastir University, Monastir, Tunisia
| | - Guilherme L Dotto
- Graduate Program in Chemical Engineering, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil.
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Seaf El-Nasr TA, Gomaa H, Emran MY, Motawea MM, Ismail ARAM. Recycling of Nanosilica from Agricultural, Electronic, and Industrial Wastes for Wastewater Treatment. WASTE RECYCLING TECHNOLOGIES FOR NANOMATERIALS MANUFACTURING 2021:325-362. [DOI: 10.1007/978-3-030-68031-2_12] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Biochar from Agricultural by-Products for the Removal of Lead and Cadmium from Drinking Water. WATER 2020. [DOI: 10.3390/w12102933] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This study reports the adsorption capacity of lead Pb2+ and cadmium Cd2+ of biochar obtained from: peanut shell (BCM), “chonta” pulp (BCH) and corn cob (BZM) calcined at 500, 600 and 700 °C, respectively. The optimal adsorbent dose, pH, maximum adsorption capacity and adsorption kinetics were evaluated. The biochar with the highest Pb2+ and Cd2+ removal capacity is obtained from the peanut shell (BCM) calcined at 565 °C in 45 min. The optimal experimental conditions were: 14 g L−1 (dose of sorbent) and pH between 5 and 7. The sorption experimental data were best fitted to the Freundlich isotherm model. High removal rates were obtained: 95.96% for Pb2+ and 99.05. for Cd2+. The BCH and BZM revealed lower efficiency of Pb2+ and Cd2+ removal than BCM biochar. The results suggest that biochar may be useful for the removal of heavy metals (Pb2+ and Cd2+) from drinking water.
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Mixed Oxide Layered Double Hydroxide Materials: Synthesis, Characterization and Efficient Application for Mn 2+ Removal from Synthetic Wastewater. MATERIALS 2020; 13:ma13184089. [PMID: 32942612 PMCID: PMC7560423 DOI: 10.3390/ma13184089] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 09/09/2020] [Accepted: 09/10/2020] [Indexed: 01/26/2023]
Abstract
Magnesium–aluminum (Mg-Al) and magnesium–aluminum–nickel (Mg-Al-Ni) layered double hydroxides (LDHs) were synthesized by the co-precipitation method. The adsorption process of Mn2+ from synthetic wastewater was investigated. Formation of the layered double hydroxides and adsorption of Mn2+ on both Mg-Al and Mg-Ni-Al LDHs were observed by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM) and Energy Dispersive Spectrometry (EDX) analysis. XRD patterns for prepared LDHs presented sharp and symmetrical peaks. SEM studies revealed that Mg-Al LDH and Mg-Al-Ni LDH exhibit a non-porous structure. EDX analysis showed that the prepared LDHs present uniformly spread elements. The adsorption equilibrium on these LDHs was investigated at different experimental conditions such as: Shaking time, initial Mn2+ concentration, and temperatures (10 and 20 °C). The parameters were controlled and optimized to remove the Mn2+ from synthetic wastewater. Adsorption isotherms of Mn2+ were fitted by Langmuir and Freundlich models. The obtained results indicated that the isotherm data fitted better into the Freundlich model than the Langmuir model. Adsorption capacity of Mn2+ gradually increased with temperature. The Langmuir constant (KL) value of Mg-Al LDH (0.9529 ± 0.007 L/mg) was higher than Mg-Al-Ni LDH (0.1819 ± 0.004 L/mg), at 20 °C. The final adsorption capacity was higher for Mg-Al LDH (91.85 ± 0.087%) in comparison with Mg-Al-Ni LDH (35.97 ± 0.093%), at 20 °C. It was found that the adsorption kinetics is best described by the pseudo-second-order model. The results indicated that LDHs can be considered as a potential material for adsorption of other metallic ions from wastewater.
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Nnadozie EC, Ajibade PA. Multifunctional Magnetic Oxide Nanoparticle (MNP) Core-Shell: Review of Synthesis, Structural Studies and Application for Wastewater Treatment. Molecules 2020; 25:E4110. [PMID: 32916776 PMCID: PMC7571024 DOI: 10.3390/molecules25184110] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/10/2020] [Accepted: 08/14/2020] [Indexed: 12/23/2022] Open
Abstract
The demand for water is predicted to increase significantly over the coming decades; thus, there is a need to develop an inclusive wastewater decontaminator for the effective management and conservation of water. Magnetic oxide nanocomposites have great potentials as global and novel remediators for wastewater treatment, with robust environmental and economic gains. Environment-responsive nanocomposites would offer wide flexibility to harvest and utilize massive untapped natural energy sources to drive a green economy in tandem with the United Nations Sustainable Development Goals. Recent attempts to engineer smart magnetic oxide nanocomposites for wastewater treatment has been reported by several researchers. However, the magnetic properties of superparamagnetic nanocomposite materials and their adsorption properties nexus as fundamental to the design of recyclable nanomaterials are desirable for industrial application. The potentials of facile magnetic recovery, ease of functionalization, reusability, solar responsiveness, biocompatibility and ergonomic design promote the application of magnetic oxide nanocomposites in wastewater treatment. The review makes a holistic attempt to explore magnetic oxide nanocomposites for wastewater treatment; futuristic smart magnetic oxides as an elixir to global water scarcity is expounded. Desirable adsorption parameters and properties of magnetic oxides nanocomposites are explored while considering their fate in biological and environmental media.
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Affiliation(s)
| | - Peter A. Ajibade
- School of Chemistry and Physics, University of Kwazulu-Natal, Private Bag X01, Scottsville Pietermaritzburg 3209, South Africa;
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Sun X, Huang H, Zhao D, Lin J, Gao P, Yao L. Adsorption of Pb 2+ onto freeze-dried microalgae and environmental risk assessment. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 265:110472. [PMID: 32421550 DOI: 10.1016/j.jenvman.2020.110472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 03/11/2020] [Accepted: 03/21/2020] [Indexed: 06/11/2023]
Abstract
Dry microalgae Spirulina platensis shows a high capacity for heavy metal uptake, but there is a concern about dissolved organic carbon (DOC) residue, which is the precursor of disinfection by-products (DBPs). Vsp, a kind of Spirulina platensis powder prepared by vacuum freeze-drying, and Osp, a kind of Spirulina platensis powder prepared by the conventional oven drying-pulverization method, were subjected to assessments of their adsorption potential for Pb2+ and DOC residue. The adsorption mechanism of Pb2+ by the two adsorbents was studied by SEM, FT-IR, EDX and N2-BET. The effects of pH, adsorbent dosage, initial Pb2+ concentration and contact time on the biosorption process were investigated. The results showed that Pb2+ biosorption by Vsp and Osp were fit well by a pseudo-second-order kinetic model and the Langmuir model. The maximum amount of Pb2+ biosorption by Vsp was 253 mg/g, which was 33 mg/g greater than that of Osp. In comparison with Osp, Vsp reached adsorption saturation 8 h earlier and had a remarkable effect on the control of DOC residue in water. When both adsorption capacity and environmental risks were considered, it was determined that the dosage of 0.5 g/L Vsp for 2 h of contact time was the best method, with 85.89 mg/g of Pb2+ removal and 3.45 mg/L of DOC residue. In summary, Vsp is a highly efficient and environmentally friendly biosorbent that can be used for heavy metal removal from water.
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Affiliation(s)
- Xiaolu Sun
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Haiyan Huang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Duolin Zhao
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Jie Lin
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Pengcheng Gao
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China; Henan Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, Nanyang, 473061, China; Collaborative Innovation Center of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, Nanyang, 473061, China.
| | - Lunguang Yao
- Henan Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, Nanyang, 473061, China; Collaborative Innovation Center of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, Nanyang, 473061, China
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Costa WD, da Silva Bento AM, de Araújo JAS, Menezes JMC, da Costa JGM, da Cunha FAB, Coutinho HDM, de Paula Filho FJ, Pereira Teixeira RN. Removal of copper(II) ions and lead(II) from aqueous solutions using seeds of Azadirachta indica A. Juss as bioadsorvent. ENVIRONMENTAL RESEARCH 2020; 183:109213. [PMID: 32062481 DOI: 10.1016/j.envres.2020.109213] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 01/31/2020] [Accepted: 02/01/2020] [Indexed: 05/12/2023]
Abstract
In recent decades, aquatic environment pollution has become a global challenge due to a rapid industrial growth. In this context, adsorption has become one of the most used methods, gaining importance especially in the last decades, given the growing concern over environmental damages caused by these pollutants. Additionally, its low cost and bioavailability are attractive. Therefore, the present study proposed to investigate the adsorption potential of A. indica seeds for Cu(II) and Pb(II) removal in synthetic solutions. Equilibrium studies were carried out via isothermal adsorption in batch systems. Kinetic studies were used to evaluate the lowest equilibrium time. The two evaluated ions were better suited to the Langmuir model and Freundlich model. When applying Langmuir's model on Neem seed powder adsorption, maximum adsorption capacities of 11.54 mg g-1 and 17.96 mg g-1, in the crude form and 11.41 mg g-1 and 19.80 mg g-1 in the alkaline form were obtained for Cu(II) and Pb(II) ions, respectively. The equilibrium time was approximately 80 and 100 min for both ions. The kinetic model best adjusted to the phenomena was the pseudo-second order (Ho Model), suggesting adsorption mainly has a chemical nature for both the studied metals. The results showed Neem seed powder may be a sustainable, efficient and low cost alternative for the removal of Cu(II) and Pb(II) metal cations present in effluents.
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Eliescu A, Georgescu AA, Nicolescu CM, Bumbac M, Cioateră N, Mureșeanu M, Buruleanu LC. Biosorption of Pb(II) from Aqueous Solution Using Mushroom (Pleurotus ostreatus) Biomass and Spent Mushroom Substrate. ANAL LETT 2020. [DOI: 10.1080/00032719.2020.1740722] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Andreea Eliescu
- Department of Chemistry, Faculty of Sciences, University of Craiova, Craiova, Romania
- Doctoral School of Sciences, University of Craiova, Craiova, Romania
| | - Andreea Antonia Georgescu
- Doctoral School of Sciences, University of Craiova, Craiova, Romania
- Faculty of Environmental Engineering and Food Science, Valahia University of Targoviste, Targoviște, Romania
| | - Cristina Mihaela Nicolescu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, Targoviște, Romania
| | - Marius Bumbac
- Faculty of Science and Arts, Valahia University of Targoviste, Targoviște, Romania
| | - Nicoleta Cioateră
- Department of Chemistry, Faculty of Sciences, University of Craiova, Craiova, Romania
| | - Mihaela Mureșeanu
- Department of Chemistry, Faculty of Sciences, University of Craiova, Craiova, Romania
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Abstract
The demand for the recovery of valuable metals and the need to understand the impact of heavy metals in the environment on human and aquatic life has led to the development of new methods for the extraction, recovery, and analysis of metal ions. With special emphasis on environmentally friendly approaches, efforts have been made to consider strategies that minimize the use of organic solvents, apply micromethodology, limit waste, reduce costs, are safe, and utilize benign or reusable materials. This review discusses recent developments in liquid- and solid-phase extraction techniques. Liquid-based methods include advances in the application of aqueous two- and three-phase systems, liquid membranes, and cloud point extraction. Recent progress in exploiting new sorbent materials for solid-phase extraction (SPE), solid-phase microextraction (SPME), and bulk extractions will also be discussed.
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Lu X, Liu X, Zhang W, Wang X, Wang S, Xia T. The residue from the acidic concentrated lithium bromide treated crop residue as biochar to remove Cr (VI). BIORESOURCE TECHNOLOGY 2020; 296:122348. [PMID: 31734059 DOI: 10.1016/j.biortech.2019.122348] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 10/25/2019] [Accepted: 10/26/2019] [Indexed: 06/10/2023]
Abstract
In this work, the hydrolysis residue produced from the acidic concentrated lithium bromide hydrolysis (ALBH) of wheat straw, corn stover and elephant grass were characterized as biochar. The ALBH biochar as the black power had high content of carbon (49.65-55 wt%), specific surface areas (4.53-7.79 m2/g), porous structures (micropores, mesopores and macropores) and abundant oxygen functional groups (hydroxy, carbonyl, ester and ketone groups). These properties made ALBH biochar as a potential adsorbent for environmental remediation, with relatively high removal efficiency for a variety of heavy metal ions, especially hexavalent chromium (Cr(VI)). Therefore, ALBH technology may be an efficient strategy for synthesis of bio-char along with fermentable sugars, which met the concern of sustainability and green chemistry.
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Affiliation(s)
- Xianqin Lu
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Jinan 250353, Shandong Province, PR China; School of Bioengineering, Qilu University of Technology, Jinan 250353, Shandong Province, PR China; Advanced Research Institute for Multidisciplinary Science, Qilu University of Technology, Jinan 250353, Shandong Province, PR China
| | - Xingwang Liu
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Jinan 250353, Shandong Province, PR China; School of Bioengineering, Qilu University of Technology, Jinan 250353, Shandong Province, PR China
| | - Wenqing Zhang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Jinan 250353, Shandong Province, PR China; School of Bioengineering, Qilu University of Technology, Jinan 250353, Shandong Province, PR China
| | - Xiaohan Wang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Jinan 250353, Shandong Province, PR China; School of Bioengineering, Qilu University of Technology, Jinan 250353, Shandong Province, PR China
| | - Shouguo Wang
- Advanced Research Institute for Multidisciplinary Science, Qilu University of Technology, Jinan 250353, Shandong Province, PR China
| | - Tao Xia
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Jinan 250353, Shandong Province, PR China; School of Bioengineering, Qilu University of Technology, Jinan 250353, Shandong Province, PR China.
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Ma H, Xu Z, Wang W, Gao X, Ma H. Adsorption and regeneration of leaf-based biochar for p-nitrophenol adsorption from aqueous solution. RSC Adv 2019; 9:39282-39293. [PMID: 35540642 PMCID: PMC9076068 DOI: 10.1039/c9ra07943b] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 11/21/2019] [Indexed: 11/21/2022] Open
Abstract
As an environmentally friendly and low-cost adsorbent, biochar has great potential in wastewater treatment. This study investigated biochar derived from Platanus orientalis L. leaves (PLB) activated by KOH in terms of its capacity and reusability to adsorb p-nitrophenol (PNP). PLB had a large specific surface area and total pore volume, and exhibits good PNP removal with a maximal adsorption capacity of 622.73 mg g-1 at 298 K. Batch experiments showed that PLB had a high PNP adsorption capacity under acidic conditions. Experimental results were well described by the pseudo-second-order kinetic model and the Langmuir adsorption isotherm model. The thermodynamic study showed that PNP adsorption was a spontaneously exothermic process, and increasing temperature was not conducive to adsorption. In addition, PNP adsorption was mainly attributed to hydrophobic interaction. The regeneration experiment showed that PLB had good reusability. After the fifth regeneration, the adsorption capacity of PLB still reached 557.05 mg g-1. The deactivation of oxygen-containing functional groups and pore blockage were the causes for the decrease in adsorption capacity of the recycled PLB. Moreover, the biochar showed good adsorption efficiency and reusability, thereby suggesting its potential to serve as an efficient PNP adsorbent for wastewater treatment.
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Affiliation(s)
- Hongfang Ma
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences Jinan 250353 China +86-531-89631680 +86-531-89631680
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China
| | - Zhaogui Xu
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China
| | - Wenyu Wang
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China
| | - Xiang Gao
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China
| | - Huifang Ma
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China
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Vardhan KH, Kumar PS, Panda RC. A review on heavy metal pollution, toxicity and remedial measures: Current trends and future perspectives. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111197] [Citation(s) in RCA: 500] [Impact Index Per Article: 100.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Guo J, Wang J, Zheng G, Jiang X. A TiO 2/crosslinked carboxymethyl starch composite for high-efficiency adsorption and photodegradation of cationic golden yellow X-GL dye. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:24395-24406. [PMID: 31228072 DOI: 10.1007/s11356-019-05685-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 06/04/2019] [Indexed: 06/09/2023]
Abstract
In this paper, a crosslinked carboxymethyl starch (CCMS) was prepared with corn starch as the raw material, epichlorohydrin as the crosslinking agent, and chloroacetic acid as the etherifying agent through a series of crosslinking, alkalization, and etherification reactions, respectively. Nano-TiO2 was loaded onto the surface of the CCMS by the sol-gel method to obtain a TiO2/CCMS composite. The TiO2/CCMS composite was characterized by XPS, XRD, SEM, and BET. XPS showed that the surface chemical composition of the TiO2/CCMS composite material contained titanium; XRD diffraction patterns indicated that the crystal form of the TiO2/CCMS composite was a combination of the CCMS and anatase TiO2. The surface morphology obtained by SEM showed that there were nano-TiO2 particles on the surface of the CCMS. The specific surface area of the TiO2/CCMS composite was larger than that of CCMS. The adsorption-photodegradation performance of the TiO2/CCMS composite was also studied under UV irradiation, and the results showed that significant adsorption-photodegradation synergies occurred.
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Affiliation(s)
- Jing Guo
- School of Textile Science and Engineering, Tianjin Polytechnic University, Tianjin, 300387, PR China.
| | - Jiankun Wang
- School of Textile Science and Engineering, Tianjin Polytechnic University, Tianjin, 300387, PR China
| | - Guo Zheng
- School of Textile Science and Engineering, Tianjin Polytechnic University, Tianjin, 300387, PR China
| | - Xiaodong Jiang
- School of Textile Science and Engineering, Tianjin Polytechnic University, Tianjin, 300387, PR China
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Kumar R, Sharma RK. Synthesis and characterization of cellulose based adsorbents for removal of Ni(II), Cu(II) and Pb(II) ions from aqueous solutions. REACT FUNCT POLYM 2019. [DOI: 10.1016/j.reactfunctpolym.2019.04.014] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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The Applications of New Inorganic Polymer for Adsorption Cadmium from Waste Water. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01215-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Ma H, Yang J, Gao X, Liu Z, Liu X, Xu Z. Removal of chromium (VI) from water by porous carbon derived from corn straw: Influencing factors, regeneration and mechanism. JOURNAL OF HAZARDOUS MATERIALS 2019; 369:550-560. [PMID: 30818119 DOI: 10.1016/j.jhazmat.2019.02.063] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 02/18/2019] [Accepted: 02/19/2019] [Indexed: 05/12/2023]
Abstract
Porous carbon is one of the most widely used materials to remove Cr(VI) from polluted water. Here we reported one efficient porous carbon material prepared from corn straw. The results of Fourier transform infrared spectroscopy (FTIR), Energy dispersion spectrum (EDS), and X-ray photoelectron spectroscopy (XPS) indicated that the porous carbon surface had functional groups such as COOH, OH and COC, etc, which could be acted as active sites during the adsorption process. Brunauer-Emmett-Teller (BET) results showed that the surface area and total pore volume of the adsorbent were 2131.181 m2/g and 1.128 cm3/g, respectively. The percentages of micropore surface area and micropore volume achieved 91.93% and 80.43%, respectively. The maximum adsorption capacity of Cr(VI) was 175.44 mg/g at 25 °C with the well-developed microporous structure and abundant oxygen-containing functional groups of porous carbon. The adsorption process was well described by the pseudo-second order model and Langmuir adsorption isotherm model. It was mainly based on chemical adsorption of a single molecular layer, accompanied by ion exchange reaction, Cr(VI) reduction, and complexation, etc. The adsorbent exhibited excellent removal performance of Cr(VI) in the co-existing ions wastewater and electroplating wastewater, and could remain high removal performance for four adsorption-desorption cycles.
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Affiliation(s)
- Hongfang Ma
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China; Institute of Advanced Energy Materials and Chemistry, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China; School of Materials Science and Engineering, Shandong Jianzhu University, Jinan, 250101, China.
| | - Juanjuan Yang
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Xiang Gao
- Institute of Advanced Energy Materials and Chemistry, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Zhibao Liu
- Institute of Advanced Energy Materials and Chemistry, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Xinxin Liu
- School of Materials Science and Engineering, Shandong Jianzhu University, Jinan, 250101, China
| | - Zhaogui Xu
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
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