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Upadhyay A, Alimohammadi F, Tehrani R. Engineering Porosity-Tuned Chitosan Beads: Balancing Porosity, Kinetics, and Mechanical Integrity. ACS OMEGA 2024; 9:33857-33867. [PMID: 39130593 PMCID: PMC11307309 DOI: 10.1021/acsomega.4c03583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Revised: 07/04/2024] [Accepted: 07/11/2024] [Indexed: 08/13/2024]
Abstract
Chitosan, a cationic natural polysaccharide derived from the deacetylation of chitin, is known for its solubility in diluted acidic solutions, biodegradability, biocompatibility, and nontoxicity. This study introduces three innovative methods for preparing various types of porous chitosan beads: solvent extraction, surfactant extraction, and substance decomposition. These methods involve the integration and subsequent extraction or decomposition of materials during the synthesis process, eliminating the need for additional steps. We used state-of-the-art characterization techniques to analyze and evaluate the chemical and physical properties of the beads, such as Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), X-ray diffraction (XRD), and three-dimensional (3D) computed tomography (CT) scanning. The 3D CT scans visualized and measured the porosity of different bead types, ranging from 68.4% to 39.3%. This study also evaluated the mechanical properties of the particle beads under compressive forces in both wet and dry conditions, highlighting the influence of porosity on their mechanical integrity and compression pressure behavior. The adsorptive properties of these chitosan beads were studied using methylene blue as a model pollutant, emphasizing the importance of balancing porous structure, surface area, kinetics, and structural integrity. This study paves the way for the development of environmentally sustainable polymeric beads, highlighting the crucial need to balance porosity, surface area, and structural integrity to optimize their effectiveness in real-world applications.
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Affiliation(s)
| | | | - Rouzbeh Tehrani
- Department of Civil and Environmental
Engineering, Temple University, Philadelphia, Pennsylvania 19122, United States
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2
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Hammad EN, Eltaweil AS, Abouelenein SA, El-Subruiti G. Enhanced Cr(VI) removal via CPBr-modified MIL-88A@amine-functionalized GO: synthesis, performance, and mechanism. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:47851-47865. [PMID: 39009817 DOI: 10.1007/s11356-024-33859-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: 02/20/2024] [Accepted: 05/27/2024] [Indexed: 07/17/2024]
Abstract
Water contamination by heavy metals, especially chromium (VI), poses a critical environmental issue due to its carcinogenic nature and persistence in the environment. Addressing this, the current study develops an efficient adsorbent, CPBr-MIL-88A@AmGO, which utilizes the synergistic capabilities of Cetylpyridinium bromide-modified MIL-88A and amine-functionalized graphene oxide to enhance Cr(VI) removal from aqueous solutions. The obtained results indicate that CPBr-MIL-88A@AmGO achieves its highest removal efficacy at pH 2, where the interaction of CPBr and AmGO's positively charged centers significantly contributes to the adsorption processes. According to the Langmuir isotherm model, the composite's adsorption capacity reached a maximum of 306.75 mg/g. The adsorption kinetics adhered to a pseudo-second-order model along with the endothermic nature of the process. Although the presence of SO42- ions significantly reduces adsorption capacity, other interfering ions including Na+, K+, Ca2+, Cl-, and NO3- only slightly affect it. Remarkably, the composite maintains high removal efficiency, over 82%, even after 7 recycling tests, underscoring its potential for practical applications in water treatment systems. The proposed mechanism involves the contribution of electrostatic attractions, ion exchange, complexation, and the reduction of Cr(VI) to Cr(III) in the removal process. This study not only offers a potent solution for Cr(VI) remediation but also contributes to sustainable water resource management.
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Affiliation(s)
- Eman N Hammad
- Department of Chemistry, Faculty of Science, Menoufia University, Shebin El-Kom, Egypt
| | - Abdelazeem S Eltaweil
- Department of Engineering, Faculty of Engineering and Technology, University of Technology and Applied Sciences, Sultanate of Oman, Ibra, Oman.
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria, Egypt.
| | - Saeyda A Abouelenein
- Department of Chemistry, Faculty of Science, Menoufia University, Shebin El-Kom, Egypt
| | - Gehan El-Subruiti
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria, Egypt
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3
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Brahmi A, Ziani S, AitAli S, Khireddine H, Luukkοnen T. Preparatiοn οf pοrοus hydrοxyapatite-metakaοlin geοpοlymer granules fοr adsοrptiοn applicatiοns using pοlyethylene glycοl as pοrοgen agent and sοdium dοdecyl sulfate as aniοnic surfactant. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:43262-43280. [PMID: 38902440 DOI: 10.1007/s11356-024-34001-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 06/11/2024] [Indexed: 06/22/2024]
Abstract
This study investigated the elaboration of novel porous absorbent granules by mixing powdered hydroxyapatite, metakaolin, sodium metasilicate, polyethylene glycol, and sodium dodecyl sulfate (SDS), an anionic surfactant. The effect of sodium dodecyl sulfate (SDS) was then studied by introducing it as a powder to the powdered mixture or dissolved into the granulation fluid. Characterization of the granules indicated that the incorporation of SDS dissolved in the granulation fluid into the G-PEG granules improved their specific surface area (97.9 m2/g) and porosity, resulting in a synergistic increase in the adsorption of crystal violet and methylene blue dyes compared to G-PEG granules and hydroxyapatite or metakaolin geopolymer alone. Moreover, the granules exhibited satisfactory compressive strength of 0.81 MPa, making them suitable for large-scale adsorption columns. Finally, the regeneratiοn prοcess οf the granules was modeled and optimized by using surface response methodology based on Box-Behnken design. The granules cοuld be regenerated fοr eight cycles under οptimum cοnditiοns οf acetic acid cοncentratiοn οf 0.72 mοl/L, a temperature οf 323 K, and a cοntact time οf 173.22 min, withοut a significant lοss in the adsοrptiοn capacity οr degradatiοn οf the granules. These results suggest that the pοrοus granules prepared in this study have pοtential tο be used in industrial wastewater treatment.
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Affiliation(s)
- Aghilas Brahmi
- Labοratοire Des Matériaux Et Dévelοppement Durables (LMDD), Département de Génie Des Prοcédés, Faculté Des Sciences Et Des Sciences Appliquées, Université A.M.Ο, Bοuira, 10000, Algeria.
- Fibre and Particle Engineering Research Unit, University of Oulu, P.Ο. Bοx 4300, Oulu, 90014, FI, Finland.
| | - Salima Ziani
- Labοratοire Des Matériaux Et Dévelοppement Durables (LMDD), Département de Génie Des Prοcédés, Faculté Des Sciences Et Des Sciences Appliquées, Université A.M.Ο, Bοuira, 10000, Algeria
- Labοratοire de Génie de LEnvirοnnement (LGE), Faculté de Technοlοgie, Université A. MIRA, Rοute de Targua Οuzemοur, Bejaia, 06000, Algeria
| | - Salima AitAli
- Labοratοire Des Matériaux Et Dévelοppement Durables (LMDD), Département de Génie Des Prοcédés, Faculté Des Sciences Et Des Sciences Appliquées, Université A.M.Ο, Bοuira, 10000, Algeria
- Labοratοire de Génie de LEnvirοnnement (LGE), Faculté de Technοlοgie, Université A. MIRA, Rοute de Targua Οuzemοur, Bejaia, 06000, Algeria
| | - Hafit Khireddine
- Labοratοire de Génie de LEnvirοnnement (LGE), Faculté de Technοlοgie, Université A. MIRA, Rοute de Targua Οuzemοur, Bejaia, 06000, Algeria
| | - Terο Luukkοnen
- Fibre and Particle Engineering Research Unit, University of Oulu, P.Ο. Bοx 4300, Oulu, 90014, FI, Finland
- Department οf Chemical Engineering Technοlοgy, University οf Jοhannesburg, P.Ο. Bοx 17011, Dοοrnfοntein, 2088, South Africa
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4
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Abd El-Monaem EM, Omer AM, Hamad HA, Eltaweil AS. Construction of attapulgite decorated cetylpyridinium bromide/cellulose acetate composite beads for removal of Cr (VI) ions with emphasis on mechanistic insights. Sci Rep 2024; 14:12164. [PMID: 38806605 PMCID: PMC11133475 DOI: 10.1038/s41598-024-62378-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 05/16/2024] [Indexed: 05/30/2024] Open
Abstract
Eco-friendly and renewable composite beads were constructed for efficient adsorptive removal of Cr (VI) ions. Attapulgite (ATP) clay decorated with cetylpyridinium bromide (CPBr) was impregnated into cellulose acetate (CA) beads, which were formulated through a simple and cost-effective solvent-exchange approach. FTIR, XRD, SEM, Zeta potential, and XPS characterization tools verified the successful formation of ATP-CPBr@CA beads. The composite beads displayed a spherical and porous shape with a positively charged surface (26.6 mV) at pH 2. In addition, higher adsorption performance was accomplished by ATP-CPBr@CA composite beads with ease of separation compared to their components. Meanwhile, equilibrium isotherms pointed out that the Langmuir model was optimal for describing the adsorption process of Cr (VI) with a maximal adsorption capacity of 302 mg/g. Moreover, the D-R isotherm model verified the physical adsorption process, while adsorption data obeyed the pseudo-second-order kinetic model. Further, XPS results hypothesized that the removal mechanism involves adsorption via electrostatic interactions, redox reaction, and co-precipitation. Interestingly, the ATP-CPBr@CA composite beads reserved tolerable adsorption characteristics with a maximum removal present exceeding 70% after reuse for seven successive cycles, proposing its feasible applicability as a reusable and easy-separable candidate for removing heavy metals from aquatic bodies.
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Affiliation(s)
- Eman M Abd El-Monaem
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Ahmed M Omer
- Polymeric Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), P. O. Box: 21934, New Borg El-Arab City, Alexandria, Egypt.
| | - Hesham A Hamad
- Fabrication Technology Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), P.O. Box 21934, New Borg El-Arab City, Alexandria, Egypt.
| | - Abdelazeem S Eltaweil
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt.
- Department of Engineering, College of Engineering and Technology, University of Technology and Applied Sciences, Ibra, 400, Sultanate of Oman.
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5
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Singh A, Tomar R, Singh NB. Efficient removal of crystal violet dye from water using zinc ferrite-polyaniline nanocomposites. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:569. [PMID: 38777943 DOI: 10.1007/s10661-024-12686-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 04/30/2024] [Indexed: 05/25/2024]
Abstract
Nanomaterials are widely employed in wastewater treatment, among which nanoferrites and their composites hold significant prominence. This study adopts a green approach to synthesize zinc ferrite nanoparticles, subsequently integrating them with polyaniline (PANI) to fabricate the ZnFe2O4-PANI nanocomposite. Characterization of the prepared ZnFe2O4-PANI nanocomposite was conducted using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopic (SEM) techniques. Using Scherrer's equation, the crystallite size of the synthesized zinc ferrite nanoparticles was found to be 17.67 nm. SEM micrographs of the ZnFe2O4-PANI nanocomposite revealed that in situ polymerization of ZnFe2O4 with polyaniline transforms the amorphous surface morphology of the polymer into a homogeneous nanoparticle structure. The adsorption of crystal violet (CV) dye onto the surface of the ZnFe2O4-PANI nanocomposite depends on pH, adsorbent dosage, temperature, concentration levels and duration. The Langmuir adsorption model fitted the data well, indicating adherence to a pseudo-second-order kinetic pattern. Thermodynamic values ΔG°, ΔH° and ΔS° indicated that the adsorption process occurred spontaneously. Advantages and disadvantages of the technique have also been highlighted. Mechanism of adsorption is discussed. From the obtained results, it is evident that the ZnFe2O4-PANI nanocomposite holds promise as a sorbent for the removal of dye from wastewater.
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Affiliation(s)
- Alka Singh
- Department of Chemistry & Biochemistry, Sharda University, Greater Noida, India
| | - Richa Tomar
- Department of Chemistry & Biochemistry, Sharda University, Greater Noida, India
| | - N B Singh
- Department of Chemistry & Biochemistry, Sharda University, Greater Noida, India.
- Research Development Centre, Sharda University, Greater Noida, India.
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6
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Sakhaei Niroumand J, Peighambardoust SJ, Mohammadi R. Tetracycline decontamination from aqueous media using nanocomposite adsorbent based on starch-containing magnetic montmorillonite modified by ZIF-67. Int J Biol Macromol 2024; 259:129263. [PMID: 38191117 DOI: 10.1016/j.ijbiomac.2024.129263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/28/2023] [Accepted: 01/03/2024] [Indexed: 01/10/2024]
Abstract
In the present study, starch/zeolitic imidazole framework-67 (ZIF-67) modified magnetic montmorillonite nanocomposite adsorbent to remove tetracycline (TC) as an emerging antibiotic-based contaminant from aqueous media. The surface properties of the adsorbents were investigated using FTIR, XRD, SEM, EDX-Map, XPS, TEM, BET, and VSM analysis. The specific surface area of MMT, St/MMT-MnFe2O4, and St/MMT-MnFe2O4-ZIF-67 magnetic nanocomposite samples were found to be 15.63, 20.54, and 588.41 m2/g, respectively. The influence of pH, adsorbent amount, initial TC concentration, temperature, contact time, and coexisting ions on TC elimination was explored in a batch adsorption system. The kinetic and equilibrium data were well matched with the pseudo-second-order and Langmuir isotherm models, respectively. The maximum monolayer adsorption capacities of TC were obtained to be 40.24, 66.1, and 135.2 mg/g by MMT, St/MMT-MnFe2O4, and St/MMT-MnFe2O4-ZIF-67 magnetic nanocomposite adsorbents, respectively. Also, thermodynamic studies illustrated that the TC adsorption process is exothermic and spontaneous. Furthermore, the magnetic nanocomposite adsorbent St/MMT-MnFe2O4-ZIF-67 showed good reusability and could be recycled for up to five cycles. This excellent adsorption performance, coupled with the facile separation of the magnetic nanocomposite, gave St/MMT-MnFe2O4-ZIF-67 a high potential for TC removal from aqueous media.
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Affiliation(s)
| | | | - Reza Mohammadi
- Polymer Research Laboratory, Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
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7
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Abdulhameed AS, Hapiz A, Musa SA, Kashi E, Wu R, ALOthman ZA, Jawad AH, Algburi S. Organically modified montmorillonite composited with magnetic glyoxal-chitosan Schiff base for reactive blue 19 dye removal: Process optimization and adsorptive mechanism. Int J Biol Macromol 2024; 256:128463. [PMID: 38029908 DOI: 10.1016/j.ijbiomac.2023.128463] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 11/14/2023] [Accepted: 11/25/2023] [Indexed: 12/01/2023]
Abstract
In this study, a new biocomposite magnetic adsorbent (magnetic glyoxal-chitosan Schiff base/organically modified montmorillonite (MCTS-GOX/OMMT)) was synthesized and employed for the adsorption of reactive blue 19 dye (RB19) from aqueous environment. The physicochemical properties of the MCTS-GOX/OMMT were confirmed by using various characterization techniques such as BET, XRD, FTIR, SEM-EDX, VSM, and pHpzc. The adsorption key variables were statistically optimized via Box-Behnken design (BBD) And accordingly the best operational conditions to achieve maximum RB19 removal were recorded at MCTS-GOX/OMMT dosage = 0.1 g/0.1 L, solution pH = 4, and working temperature = 25 °C. The adsorption process for RB19 appeared to follow the pseudo-second-order kinetic and the Langmuir isotherm models, according to the findings of the adsorption kinetics and equilibrium investigations. The maximum adsorption capacity of the MCTS-GOX/OMMT towards RB19 was 122.3 mg/g, demonstrating its preferable adsorption capability. The successful development of this novel magnetic bioadsorbent with excellent adsorption ability towards organic dyes and efficient separation ability opens possibilities for its practical application in wastewater treatment and dye removal processes.
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Affiliation(s)
- Ahmed Saud Abdulhameed
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Anbar, Ramadi, Iraq; College of Engineering, University of Warith Al-Anbiyaa, Karbala, Iraq
| | - Ahmad Hapiz
- Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia; Advanced Biomaterials and Carbon Development Research Group, Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
| | - Salis Auwal Musa
- Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia; Advanced Biomaterials and Carbon Development Research Group, Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
| | - Elmira Kashi
- Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia; Advanced Biomaterials and Carbon Development Research Group, Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
| | - Ruihong Wu
- Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia; Advanced Biomaterials and Carbon Development Research Group, Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia; Department of Chemistry, Hengshui University, 053500, Hebei Province, Hengshui, China
| | - Zeid A ALOthman
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ali H Jawad
- Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia; Advanced Biomaterials and Carbon Development Research Group, Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia; Environmental and Atmospheric Sciences Research Group, Scientific Research Center, Al-Ayen University, Thi-Qar, Nasiriyah 64001, Iraq.
| | - Sameer Algburi
- College of Engineering Technology, Al-Kitab University, Kirkuk, Iraq
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8
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Amiri MJ, Raayatpisheh M, Radi M, Amiri S. Preparation and characterization of biopolymer-based adsorbents and their application for methylene blue removal from wastewater. Sci Rep 2023; 13:17263. [PMID: 37828131 PMCID: PMC10570327 DOI: 10.1038/s41598-023-44613-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 10/10/2023] [Indexed: 10/14/2023] Open
Abstract
In the present study, four biopolymer-based materials consisting of native corn starch (CS), phosphate corn starch (PS), starch nanocrystals (SNCs), and phosphate corn starch nanocrystals (PSNCs) were synthesized and used for methylene blue (MB) removal as a function of various parameters, including initial MB concentration (C0, 10-500 mg L-1), adsorbent dosage (Cs, 0.02-0.15 g), contact time (t, 5-15 min), solution pH (2-11), and temperature (25-45 °C). The removal percentage of MB increased dramatically upon increasing the biopolymer dosage, temperature, and pH; while it decreased upon increasing the initial MB concentration. The adsorption behavior of biopolymer-based materials towards MB was found to be accurately described by the pseudo-second-order kinetic and Langmuir isotherm models. According to the Langmuir model, the maximum adsorption capacities of the adsorbents were ordered as follows: PSNCs (88.53 mg g-1) > SNCs (79.55 mg g-1) > PS (73.17 mg g-1) > CS (63.02 mg g-1). PSNCs was able to remove 96.8% and 76.5% of 20 mg L-1 MB in greywater and petrochemical wastewater, respectively, at an optimum pH of 9 and retained 86.42% of its usability even after five adsorption-desorption cycles. The analysis of the surface charge of the adsorbents before and after MB adsorption, combined with the FTIR spectrum of MB-saturated biopolymer-based materials, provided evidence that electrostatic interactions was the primary mechanism involved in the adsorption of MB. Meanwhile, hydrogen bonding and π-π interactions were found to have a minor contribution to the adsorption process. Based on the results, it can be inferred that PSNCs has promising potential as an adsorbent for the treatment of MB-containing wastewater, owing to its exceptional properties, which include high adsorption capacity, low cost, and applicability for multiple reuses.
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Affiliation(s)
- Mohammad Javad Amiri
- Department of Water Engineering, Faculty of Agriculture, Fasa University, Fasa, 74616-86131, Iran.
| | - Maryam Raayatpisheh
- Department of Food Science and Technology, Yasooj Branch, Islamic Azad University, Yasooj, Iran
| | - Mohsen Radi
- Department of Food Science and Technology, Yasooj Branch, Islamic Azad University, Yasooj, Iran.
- Sustainable Agriculture and Food Security Research Group, Yasooj Branch, Islamic Azad University, Yasooj, 75914-93686, Iran.
| | - Sedigheh Amiri
- Department of Food Science and Technology, Yasooj Branch, Islamic Azad University, Yasooj, Iran
- Sustainable Agriculture and Food Security Research Group, Yasooj Branch, Islamic Azad University, Yasooj, 75914-93686, Iran
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9
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Adel M, El Naggar AMA, Bakry A, Hilal MH, El-Zahhar AA, Taha MH, Marey A. Decoration of polystyrene with nanoparticles of cobalt hydroxide as new composites for the removal of Fe(iii) and methylene blue from industrial wastewater. RSC Adv 2023; 13:25334-25349. [PMID: 37622016 PMCID: PMC10445594 DOI: 10.1039/d3ra03794k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 07/31/2023] [Indexed: 08/26/2023] Open
Abstract
Effluent water from different industries is considered one of the most serious environmental pollutants due to its non-safe disposal. Therefore, proper treatment methods for such wastewater are strongly stimulated for its potential reuse in industries or agriculture. This study introduces a composite fabricated via doping of polystyrene with nanoparticles of cobalt hydroxide as a novel adsorbent for dye and heavy metal decontamination from wastewater. The adsorbent fabrication involves the preparation of polystyrene via high-internal phase emulation (HIPE) polymerization followed by its intercalation with particles of alkali cobalt. The chemical composition and structural properties of the synthesized composite were confirmed by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, and energy-dispersive X-ray spectroscopy (EDX). Moreover, scanning electron microscopy (SEM) and N2 adsorption-desorption surface area analysis were performed to identify the surface and morphological characteristics of the composite. Then, the ability of this structure toward the removal of methylene blue dye (MB) and heavy metal (iron iii) species from waste aqueous solutions was investigated. Successful elimination for both MB and Fe(iii) was achieved by the presented composite. Elevated adsorption capacities of 75.2 and 112.3 mg g-1, toward MB and Fe(iii) respectively, were detected for the presented polymer-metal hydroxide composite. The increased values of the composite are attributed to the presence of both organic and inorganic functional groups within its structure. Kinetic and isotherm studies for the removal of both cationic species revealed that adsorption processes fit the pseudo-second-order kinetic model and Langmuir isotherm model. Additionally, thermodynamics measurements indicated that the adsorption process of methylene blue and Fe ions is feasible, spontaneous, physisorption, and endothermic.
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Affiliation(s)
| | | | - Ahmed Bakry
- Chemistry Departments, Faculty of Science, Helwan University Cairo Egypt
| | - Maher H Hilal
- Chemistry Departments, Faculty of Science, Helwan University Cairo Egypt
| | - Adel A El-Zahhar
- Department of Chemistry, Faculty of Science, King Khalid University Abha 9004 Saudi Arabia
| | - Mohamed H Taha
- Nuclear Materials Authority P.O. Box 530, El Maddi Cairo Egypt
| | - A Marey
- Department of Basic Science, The Valley Higher Institute for Engineering & Technology Al-Obour 11828 Egypt
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10
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Bin Bandar K, Aljlil S. Utilization of Prepared Nanocellulose as a Biopolymer for Adsorption Kinetics of Cobalt Ions from Wastewater. Polymers (Basel) 2023; 15:polym15092143. [PMID: 37177290 PMCID: PMC10180900 DOI: 10.3390/polym15092143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/26/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
This study evaluated nanocellulose derived from discarded palm leaves for its ability to remove cobalt ions from industrial wastewater. The process involved extracting cellulose nanocrystals (CNCs) from date palm leaves through a series of repeated chemical treatments. The study examined the adsorption rates of cobalt ions under various conditions using different techniques. Two equilibrium models, the Langmuir and Freundlich models, were employed, and the Langmuir model was found to be consistent with the experimental data. The maximum amount of cobalt ions adsorbed at room temperature was 5.98 mg/g. Furthermore, several kinetic models were used to gain insight into the adsorption mechanism, including the pseudo-first-order, pseudo-second-order, Elovich, and intraparticle diffusion models. The pseudo-second-order model provided an accurate description of the adsorption process, while the Elovich equation suggested a chemical reaction between cobalt ions and nanocellulose, involving multiple chemical reactions and mass-transfer processes. Kinetic parameters were critical in interpreting the results, and the study's findings were in agreement with the pseudo-second-order and intraparticle models, indicating general chemical reactions and diffusion resistance.
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Affiliation(s)
- Khaled Bin Bandar
- Water Management and Treatment Technologies Institute, King Abdulaziz City for Science and Technology, Riyadh 12354, Saudi Arabia
| | - Saad Aljlil
- Water Management and Treatment Technologies Institute, King Abdulaziz City for Science and Technology, Riyadh 12354, Saudi Arabia
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11
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Ma W, Liu X, Lu H, He Q, Ding K, Wang X, Wang W, Guo F. Chitosan-based composite hydrogel with a rigid-in-flexible network structure for pH-universal ultra-efficient removal of dye. Int J Biol Macromol 2023; 241:124579. [PMID: 37105247 DOI: 10.1016/j.ijbiomac.2023.124579] [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: 11/06/2022] [Revised: 04/05/2023] [Accepted: 04/20/2023] [Indexed: 04/29/2023]
Abstract
Polysaccharide-based hydrogel adsorbents become popular because of their high adsorption capacity and fast adsorption rate, but their low removal rate and poor pH resistance have always been fatal shortcomings. Herein, a feasible strategy was proposed to strengthen the ability of hydrogel adsorbent to remove organic pollutants (i.e., dye) by incorporating natural rectorite (REC) into chitosan-g-poly (2-acrylamido-2-methyl-propane-sulfonic-acid) hydrogel network to form a rectorite-in-polymer network structure. The introduction of less dosage of REC (1.2 wt%) into the hydrogel facilitates to improve its adsorption capacities toward methylene blue (MB) in deionized water, tap water, seawater, Yangtze River water, and Yellow River water (1083.39-1303.49 mg/g); while incorporating higher content of REC (15.8 wt% REC) helps to improve the removal rate (99.6 % for MB in real waters), which are greatly superior to commercial activated carbons. The adsorbent keeps high adsorption efficiency in a broad pH range (2-11), and can be reused for >4 times.
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Affiliation(s)
- Wenyuan Ma
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, PR China
| | - Xiangyu Liu
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, PR China
| | - Hang Lu
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, PR China
| | - Qingdong He
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, PR China
| | - Ke Ding
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, PR China
| | - Xuehan Wang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, PR China
| | - Wenbo Wang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, PR China.
| | - Fang Guo
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, PR China
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12
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Zhang Q, Qileng A, Li J, Cao Y, Liu W, Liu Y. Grafting a Porous Metal-Organic Framework [NH 2-MIL-101(Fe)] with AgCl Nanoparticles for the Efficient Removal of Congo Red. ACS OMEGA 2023; 8:4639-4648. [PMID: 36777579 PMCID: PMC9909803 DOI: 10.1021/acsomega.2c06300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 01/18/2023] [Indexed: 06/18/2023]
Abstract
Organic dyes can produce harmful effects on the water environment, such as affecting the growth of aquatic organisms, reducing the transparency of water bodies, and causing eutrophication of water bodies, so it is necessary to mitigate the hazards of organic dyes. In this study, a metal-organic framework [NH2-MIL-101(Fe)] was synthesized by the solvothermal method as a carrier for the in situ uniform deposition of AgCl nanoparticles on its surface, which was successfully used for both adsorption and degradation of Congo red. Adsorption results showed that the adsorption kinetics conformed to the proposed secondary adsorption kinetics equation with a maximum adsorption capacity of 248.4 mg·g-1. Furthermore, the degradation results indicated that with the aid of sodium borohydride as a reducing agent, the degradation of Congo red followed pseudo-first-order kinetics with a degradation rate of 0.077 min-1, and the complete degradation of Congo red was finished within 18 min. Therefore, AgCl/NH2-MIL-101(Fe) may find a potential application in the removal of dyes from wastewater.
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Affiliation(s)
- Qiyue Zhang
- Key
Laboratory for Biobased Materials and Energy of Ministry of Education,
College of Materials and Energy, South China
Agricultural University, Guangzhou510642, China
| | - Aori Qileng
- Key
Laboratory for Biobased Materials and Energy of Ministry of Education,
College of Materials and Energy, South China
Agricultural University, Guangzhou510642, China
| | - Jiale Li
- Key
Laboratory for Biobased Materials and Energy of Ministry of Education,
College of Materials and Energy, South China
Agricultural University, Guangzhou510642, China
| | - Yiran Cao
- Key
Laboratory for Biobased Materials and Energy of Ministry of Education,
College of Materials and Energy, South China
Agricultural University, Guangzhou510642, China
| | - Weipeng Liu
- Key
Laboratory for Biobased Materials and Energy of Ministry of Education,
College of Materials and Energy, South China
Agricultural University, Guangzhou510642, China
| | - Yingju Liu
- Key
Laboratory for Biobased Materials and Energy of Ministry of Education,
College of Materials and Energy, South China
Agricultural University, Guangzhou510642, China
- Guangdong
Provincial Key Laboratory of Agricultural & Rural Pollution Abatement
and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou510642, China
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13
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Fabrication of Surface Etched NiFe2O4-NiSe2 Nanocomposite as an Efficient Electrocatalyst for Oxygen Evolution Reaction. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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14
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Yi Y, Guan Q, Wang W, Jian S, Li H, Wu L, Zhang H, Jiang C. Recyclable Carbon Cloth-Supported ZnO@Ag 3PO 4 Core-Shell Structure for Photocatalytic Degradation of Organic Dye. TOXICS 2023; 11:70. [PMID: 36668796 PMCID: PMC9866964 DOI: 10.3390/toxics11010070] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/07/2023] [Accepted: 01/08/2023] [Indexed: 06/17/2023]
Abstract
The extensive use of organic dyes in industry has caused serious environmental problems, and photocatalysis is a potential solution to water pollution by organic dyes. The practical application of powdery photocatalysts is usually limited by the rapid recombination of charge carriers and difficulty in recycling. In this study, recyclable carbon cloth-supported ZnO@Ag3PO4 composite with a core-shell structure was successfully prepared by solvothermal treatment and subsequent impregnation-deposition. The as-prepared carbon cloth-supported ZnO@Ag3PO4 composite showed an improved photocatalytic activity and stability for the degradation of rhodamine B (RhB), a model organic dye, under visible light irradiation. The decomposition ratio of RhB reached 87.1% after exposure to visible light for 100 min, corresponding to a reaction rate constant that was 4.8 and 15.9 times that of carbon cloth-supported Ag3PO4 or ZnO alone. The enhanced performance of the composite can be attributed to the effectively inhibited recombination of photoinduced electron-hole pairs by the S-scheme heterojunction. The carbon fibers further promoted the transfer of charges. Moreover, the carbon cloth-supported ZnO@Ag3PO4 can be easily separated from the solution and repeatedly used, demonstrating a fair recyclability and potential in practical applications.
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Affiliation(s)
- Yuan Yi
- School of Materials and Energy, Guangdong University of Technology, Guangzhou Higher Education Mega Center 100#, Guangzhou 510006, China
| | - Qifang Guan
- School of Materials and Energy, Guangdong University of Technology, Guangzhou Higher Education Mega Center 100#, Guangzhou 510006, China
| | - Wenguang Wang
- School of Materials and Energy, Guangdong University of Technology, Guangzhou Higher Education Mega Center 100#, Guangzhou 510006, China
| | - Siyuan Jian
- School of Materials and Energy, Guangdong University of Technology, Guangzhou Higher Education Mega Center 100#, Guangzhou 510006, China
| | - Hengchao Li
- School of Materials and Energy, Guangdong University of Technology, Guangzhou Higher Education Mega Center 100#, Guangzhou 510006, China
| | - Liangpeng Wu
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516000, China
| | - Haiyan Zhang
- School of Materials and Energy, Guangdong University of Technology, Guangzhou Higher Education Mega Center 100#, Guangzhou 510006, China
| | - Chuanjia Jiang
- College of Environmental Science and Engineering, Nankai University, 38 Tongyan Rd., Tianjin 300350, China
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15
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Abdelfatah AM, El-Maghrabi N, Mahmoud AED, Fawzy M. Synergetic effect of green synthesized reduced graphene oxide and nano-zero valent iron composite for the removal of doxycycline antibiotic from water. Sci Rep 2022; 12:19372. [PMID: 36371519 PMCID: PMC9652592 DOI: 10.1038/s41598-022-23684-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 11/03/2022] [Indexed: 11/13/2022] Open
Abstract
In this work, the synthesis of an rGO/nZVI composite was achieved for the first time using a simple and green procedure via Atriplex halimus leaves extract as a reducing and stabilizing agent to uphold the green chemistry principles such as less hazardous chemical synthesis. Several tools have been used to confirm the successful synthesis of the composite such as SEM, EDX, XPS, XRD, FTIR, and zeta potential which indicated the successful fabrication of the composite. The novel composite was compared with pristine nZVI for the removal aptitude of a doxycycline antibiotic with different initial concentrations to study the synergistic effect between rGO and nZVI. The adsorptive removal of bare nZVI was 90% using the removal conditions of 25 mg L-1, 25 °C, and 0.05 g, whereas the adsorptive removal of doxycycline by the rGO/nZVI composite reached 94.6% confirming the synergistic effect between nZVI and rGO. The adsorption process followed the pseudo-second order and was well-fitted to Freundlich models with a maximum adsorption capacity of 31.61 mg g-1 at 25 °C and pH 7. A plausible mechanism for the removal of DC was suggested. Besides, the reusability of the rGO/nZVI composite was confirmed by having an efficacy of 60% after six successive cycles of regeneration.
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Affiliation(s)
- Ahmed M Abdelfatah
- Environmental Sciences Department, Faculty of Science, Alexandria University, Alexandria, 21511, Egypt.
- Green Technology Group, Faculty of Science, Alexandria University, Alexandria, 21511, Egypt.
| | - Nourhan El-Maghrabi
- Environmental Sciences Department, Faculty of Science, Alexandria University, Alexandria, 21511, Egypt
- Green Technology Group, Faculty of Science, Alexandria University, Alexandria, 21511, Egypt
| | - Alaa El Din Mahmoud
- Environmental Sciences Department, Faculty of Science, Alexandria University, Alexandria, 21511, Egypt
- Green Technology Group, Faculty of Science, Alexandria University, Alexandria, 21511, Egypt
| | - Manal Fawzy
- Environmental Sciences Department, Faculty of Science, Alexandria University, Alexandria, 21511, Egypt
- Green Technology Group, Faculty of Science, Alexandria University, Alexandria, 21511, Egypt
- National Biotechnology Network of Expertise (NBNE), Academy of Scientific Research and Technology (ASRT), Cairo, Egypt
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