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Wei Y, Zhou S, Wei J, Cai H, Hou Y, Jia Z, Su X. Carbon Dot-Stabilized Hydrogel Composite: A New Adsorbent for Efficient and Sustainable Pb(II) Removal. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:9651-9660. [PMID: 38656101 DOI: 10.1021/acs.langmuir.4c00469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
In this paper, a carbon dot hydrogel composite (CDs-Hy) capable of efficiently removing Pb(II) was prepared by hydrogen bonding self-assembly in combination with carbon dots and a hydrogel. CDs-Hy was characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), and X-ray photoelectron spectroscopy (XPS), and the effect of the adsorption conditions on the adsorption efficiency of CDs-Hy was studied. The results of the study showed that the incorporation of carbon dots, on the one hand, significantly increased the adsorption capacity of the material. On the other hand, it can increase the stability of hydrogels in aqueous solution. The possible adsorption mechanisms were further verified as ion exchange and coordination. CDs-Hy is a novel adsorbent material capable of removing Pb2+ efficiently, which can be reused several times with high stability.
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Affiliation(s)
- Yuan Wei
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Shunli Zhou
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Ju Wei
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Huishan Cai
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Yongrui Hou
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Zhenfu Jia
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Xiaodong Su
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
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Priyadarshanee M, Das S. Spectra metrology for interaction of heavy metals with extracellular polymeric substances (EPS) of Pseudomonas aeruginosa OMCS-1 reveals static quenching and complexation dynamics of EPS with heavy metals. JOURNAL OF HAZARDOUS MATERIALS 2024; 466:133617. [PMID: 38306836 DOI: 10.1016/j.jhazmat.2024.133617] [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: 10/13/2023] [Revised: 01/08/2024] [Accepted: 01/23/2024] [Indexed: 02/04/2024]
Abstract
The adsorption behavior and interaction mechanisms of extracellular polymeric substances (EPS) of Pseudomonas aeruginosa OMCS-1 towards chromium (Cr), lead (Pb), and cadmium (Cd) were investigated. EPS-covered (EPS-C) cells exhibited significantly higher (p < 0.0001; two-way ANOVA) removal of Cr (85.58 ± 0.39%), Pb (81.98 ± 1.02%), and Cd (73.88 ± 1%) than EPS-removed (EPS-R) cells. Interactions between EPS-heavy metals were spontaneous (ΔG<0). EPS-Cr(VI) and EPS-Pb(II) binding were exothermic (ΔH<0), while EPS-Cd(II) binding was endothermic (ΔH>0) process. EPS bonded to Pb(II) via inner-sphere complexation by displacement of surrounding water molecules, while EPS-Cr(VI) and EPS-Cd(II) binding occurred through outer-sphere complexation via electrostatic interactions. Increased zeta potential of Cr (29.75%), Pb (41.46%), and Cd (46.83%) treated EPS and unchanged crystallinity (CIXRD=0.13), inferred EPS-metal binding via both electrostatic interactions and complexation mechanism. EPS-metal interaction was predominantly promoted through hydroxyl, amide, carboxyl, and phosphate groups. Metal adsorption deviated EPS protein secondary structures. Strong static quenching mechanism between tryptophan protein-like substances in EPS and heavy metals was evidenced. EPS sequestered heavy metals via complexation with C-O, C-OH, CO/O-C-O, and NH/NH2 groups and ion exchange with -COOH group. This study unveils the fate of Cr, Pb, and Cd on EPS surface and provides insight into the interactions among EPS and metal ions for metal sequestration.
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Affiliation(s)
- Monika Priyadarshanee
- Laboratory of Environmental Microbiology and Ecology (LEnME), Department of Life Science, National Institute of Technology, Rourkela 769 008, Odisha, India
| | - Surajit Das
- Laboratory of Environmental Microbiology and Ecology (LEnME), Department of Life Science, National Institute of Technology, Rourkela 769 008, Odisha, India.
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Zhang M, Liu Y, Yin Z, Feng D, Lv H. Preparation and adsorption properties of magnetic chitosan/sludge biochar composites for removal of Cu 2+ ions. Sci Rep 2023; 13:20937. [PMID: 38017022 PMCID: PMC10684598 DOI: 10.1038/s41598-023-46815-4] [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: 07/31/2023] [Accepted: 11/06/2023] [Indexed: 11/30/2023] Open
Abstract
The magnetic chitosan/sludge biochar composite adsorbent was prepared using chitosan, Fe3O4, and sludge biochar as raw materials. The composite adsorbent was able to achieve rapid solid-liquid separation under an applied magnetic field. The morphology and microstructure of the composite adsorbent were characterized by FTIR, XRD, SEM, VSM, and BET analysis. The adsorption performance of the composite adsorbent on Cu2+ was investigated through static adsorption experiments, and the effects of adsorbent dosage, initial concentration of Cu2+, initial pH of the solution, and adsorption temperature on the adsorption efficiency of Cu2+ were discussed. The results showed that chitosan and Fe3O4 were successfully loaded on sludge biochar. When the initial concentration of Cu2+ was 30 mg/L, the dosage of the magnetic chitosan/sludge biochar composite material was 0.05 g, the adsorption time was 180 min, pH was 5, and the temperature was room temperature, the maximum removal rate of Cu2+ reached 99.77%, and the maximum adsorption capacity was 55.16 mg/g. The adsorption kinetics and adsorption isotherm data fitted well with the pseudo-second-order kinetic model and Langmuir adsorption isotherm model, indicating that the adsorption process was chemisorption with monolayer coverage.
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Affiliation(s)
- Meng Zhang
- Key Laboratory of Pollutant Chemistry and Environmental Treatment, School of Resources and Environment, Yili Normal University, Xinjiang, 835000, Yining, China
| | - Yunqing Liu
- Key Laboratory of Pollutant Chemistry and Environmental Treatment, School of Resources and Environment, Yili Normal University, Xinjiang, 835000, Yining, China.
| | - Zhizhen Yin
- Key Laboratory of Pollutant Chemistry and Environmental Treatment, School of Resources and Environment, Yili Normal University, Xinjiang, 835000, Yining, China.
| | - Dan Feng
- Key Laboratory of Pollutant Chemistry and Environmental Treatment, School of Resources and Environment, Yili Normal University, Xinjiang, 835000, Yining, China
| | - Hui Lv
- Key Laboratory of Pollutant Chemistry and Environmental Treatment, School of Resources and Environment, Yili Normal University, Xinjiang, 835000, Yining, China
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Zhang K, Yi Y, Fang Z. Remediation of cadmium or arsenic contaminated water and soil by modified biochar: A review. CHEMOSPHERE 2023; 311:136914. [PMID: 36272628 DOI: 10.1016/j.chemosphere.2022.136914] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 10/10/2022] [Accepted: 10/14/2022] [Indexed: 06/16/2023]
Abstract
Biochar has a high specific surface area with abundant pore structure and functional groups, which has been widely used in remediation of cadmium or arsenic contaminated water and soil. However, the bottleneck problem of low-efficiency of pristine biochar in remediation of contaminated environments always occurs. Nowadays, the modification of biochar is a feasible way to enhance the performance of biochar. Based on the Web of science™, the research progress of modified biochar and its application in remediation of cadmium or arsenic contaminated water and soil have been systematically summarized in this paper. The main modification strategies of biochar were summarized, and the variation of physicochemical properties of biochar before and after modification were illustrated. The efficiency and key mechanisms of modified biochar for remediation of cadmium or arsenic contaminated water and soil were expounded in detail. Finally, some constructive suggestions were given for the future direction and challenges of modified biochar research.
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Affiliation(s)
- Kai Zhang
- School of Environment, South China Normal University, Guangzhou, 510006, China
| | - Yunqiang Yi
- School of Environment, South China Normal University, Guangzhou, 510006, China; College of Resources and Environment, Zhongkai University of Agriculture and Engineering, Guangzhou, 510006, China.
| | - Zhanqiang Fang
- School of Environment, South China Normal University, Guangzhou, 510006, China; SCNU Qingyuan Institute of Science and Technology Innovation Co., Ltd., Qingyuan, 511500, China; Normal University Environmental Remediation Technology Co., Ltd, Qingyuan, 511500, China.
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Preparation of modified reed carbon composite hydrogels for trapping Cu2+, Ni2+ and Methylene blue in aqueous solutions. J Colloid Interface Sci 2022; 628:878-890. [DOI: 10.1016/j.jcis.2022.08.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/29/2022] [Accepted: 08/01/2022] [Indexed: 01/22/2023]
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Qu J, Shi J, Wang Y, Tong H, Zhu Y, Xu L, Wang Y, Zhang B, Tao Y, Dai X, Zhang H, Zhang Y. Applications of functionalized magnetic biochar in environmental remediation: A review. JOURNAL OF HAZARDOUS MATERIALS 2022; 434:128841. [PMID: 35427975 DOI: 10.1016/j.jhazmat.2022.128841] [Citation(s) in RCA: 55] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 03/14/2022] [Accepted: 03/31/2022] [Indexed: 06/14/2023]
Abstract
Magnetic biochar (MBC) is extensively applied on contaminants removal from environmental medium for achieving environmental-friendly remediation with reduction of secondary pollution owing to its easy recovery and separation. However, the summary of MBC synthesis methods is still lack of relevant information. Moreover, the adsorption performance for pollutants by MBC is limited, and thus it is imperative to adopt modification techniques to enhance the removal ability of MBC. Unfortunately, there are few reviews to present modification methods of MBC with applications for removing hazardous contaminants. Herein, we critically reviewed (i) MBC synthetic methods with corresponding advantages and limitations; (ii) adsorption mechanisms of MBC for heavy metals and organic pollutants; (iii) various modification methods for MBC such as functional groups grafting, nanoparticles loading and element doping; (iv) applications of modified MBC for hazardous contaminants adsorption with deep insight to relevant removal mechanisms; and (v) key influencing conditions like solution pH, temperature and interfering ions toward contaminants removal. Finally, some constructive suggestions were put forward for the practical applications of MBC in the near future. This review provided a comprehensive understanding of using functionalized MBC as effective adsorbent with low-cost and high-performance characteristics for contaminated environment remediation.
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Affiliation(s)
- Jianhua Qu
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Jiajia Shi
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Yihui Wang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Hua Tong
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Yujiao Zhu
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Lishu Xu
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Yifan Wang
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Bo Zhang
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Yue Tao
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Xiao Dai
- Harbin ZENENG Environmental Technology Co. Ltd., China
| | - Hui Zhang
- Harbin ZENENG Environmental Technology Co. Ltd., China
| | - Ying Zhang
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China; Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, 4888 Shengbei Rd, Changchun 130102, China.
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Huang Z, Yi Y, Zhang N, Tsang PE, Fang Z. Removal of fluconazole from aqueous solution by magnetic biochar treated by ball milling: adsorption performance and mechanism. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:33335-33344. [PMID: 35022965 DOI: 10.1007/s11356-021-17964-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 12/02/2021] [Indexed: 06/14/2023]
Abstract
The problem of low adsorption capacity of pristine magnetic biochar for organic pollutants always occurs. It is of great significance to select a suitable method to improve the adsorption performance of magnetic biochar. In this study, magnetic biochar was treated by ball milling and tested for its fluconazole adsorption capacity. The maximum adsorption capacity of ball-milled magnetic biochar (BMBC) for fluconazole reached nearly 15.90 mg/g, which was approximately five times higher than that of pristine magnetic biochar (MBC). Fluconazole adsorption by BMBC was mainly attributed to π-π interactions, hydrogen bonding, and surface complexation with oxygen-containing functional groups. The enhancement in fluconazole adsorption by BMBC was attributed to an increase in oxygen-containing functional groups. Batch adsorption experiments also illustrated that BMBC could be successfully applied in a wide range of pH values. The high efficiency of fluconazole removal confirmed that ball milling was an effective strategy to enhance the adsorptive performance of magnetic biochar.
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Affiliation(s)
- Zhexi Huang
- School of Environment, South China Normal University, Guangzhou, 510006, China
- Guangdong Technology Research Center for Ecological Management and Remediation of Water System, Guangzhou, 510006, China
- Guangdong Provincial Key Laboratory of Chemical Pollution & Environmental Safety, Guangzhou, 510006, China
| | - Yunqiang Yi
- School of Environment, South China Normal University, Guangzhou, 510006, China.
- Guangdong Technology Research Center for Ecological Management and Remediation of Water System, Guangzhou, 510006, China.
- Guangdong Provincial Key Laboratory of Chemical Pollution & Environmental Safety, Guangzhou, 510006, China.
| | - Nuanqin Zhang
- School of Environment, South China Normal University, Guangzhou, 510006, China
- Guangdong Technology Research Center for Ecological Management and Remediation of Water System, Guangzhou, 510006, China
| | - Pokeung Eric Tsang
- Department of Science and Environmental Studies, The Education University of Hong Kong, Hong Kong, 00852, China
| | - Zhanqiang Fang
- School of Environment, South China Normal University, Guangzhou, 510006, China
- Guangdong Technology Research Center for Ecological Management and Remediation of Water System, Guangzhou, 510006, China
- Guangdong Provincial Key Laboratory of Chemical Pollution & Environmental Safety, Guangzhou, 510006, China
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Gao N, Du W, Zhang M, Ling G, Zhang P. Chitosan-modified biochar: Preparation, modifications, mechanisms and applications. Int J Biol Macromol 2022; 209:31-49. [PMID: 35390400 DOI: 10.1016/j.ijbiomac.2022.04.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/13/2022] [Accepted: 04/02/2022] [Indexed: 12/29/2022]
Abstract
The chitosan-modified biochar composite, as a carbohydrate polymer, has received increasing attention and becomes a research hotspot. It is a promising impurity adsorption material, which has potential application value in the agricultural environment fields such as soil improvement and sewage purification. The composite can combine the advantages of biochar with chitosan, and the resulting composite usually exhibits a great improvement in its surface functional groups, adsorption sites, stability, and adsorption properties. In addition, compared to other adsorbents, the composite truly achieves the concept of "waste control by waste". In this paper, the preparation method, composite classification, adsorption mechanism, and models of biochar modified by chitosan are introduced, meanwhile, we also review and summarize their effects on the decontamination of wastewater and soil. In addition to common heavy metal ions, we also review the adsorption and removal of some other organic/inorganic pollutants, including (1) drug residues; (2) dyes; (3) phosphates; (4) radionuclides; (5) perfluorochemicals, etc. Moreover, challenges and prospects for the composite are presented and further studies are called for the chitosan-biochar composite. We believe that the composite will lead to further achievements in the field of environmental remediation.
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Affiliation(s)
- Nan Gao
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Wenzhen Du
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Manyue Zhang
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Guixia Ling
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China.
| | - Peng Zhang
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China.
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Chen Y, Tang J, Wang S, Zhang L. Facile preparation of a remarkable MOF adsorbent for Au(III) selective separation from wastewater: Adsorption, regeneration and mechanism. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118137] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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10
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Removal of the Cd(II), Ni(II), and Pb(II) ions via their complexation with the uric acid-based adsorbent and use of the corresponding Cd-complex for the synthesis of tetrazoles. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2021.139195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Biosorption of Pb 2+ and Zn 2+ by Ca-alginate immobilized and free extracellular polysaccharides produced by Leuconostoc citreum B-2. Int J Biol Macromol 2021; 193:2365-2373. [PMID: 34798193 DOI: 10.1016/j.ijbiomac.2021.11.070] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 11/10/2021] [Accepted: 11/10/2021] [Indexed: 01/17/2023]
Abstract
AIMS Heavy metal pollution seriously threatens human health and ecological environment. Due to high efficiency and excellent development prospect, adsorption technology has attracted worldwide attention. It is significant to develop renewable adsorbents with excellent adsorption performance. SCOPE In this study, the Pb2+ and Zn2+ adsorption capacity of Ca-alginate immobilized and free (without immobilization) Leu. citreum B-2 extracellular polysaccharides (EPS) was investigated. Isotherm and kinetic models were used to evaluate the adsorption performance. The adsorbents were characterized by SEM, FT-IR and XPS spectroscopy. CONCLUSIONS The maximum biosorption of Pb2+ 269.54 and Zn2+ 49.88 mg/g was achieved with immobilized EPS. Thermodynamic studies showed that the adsorption of Pb2+ and Zn2+ on EPS was a spontaneous and feasible process, and the adsorption properties of EPS were exothermic for lead and endothermic for zinc. All the adsorption processes conformed to the pseudo-second-order model and Langmuir adsorption isotherm model, indicating that the adsorption was mainly chemisorption taken placed on single adsorption surface. SEM results showed that the surface of EPS become denser after adsorption. FTIR and XPS analysis indicated that the adsorption mechanism mainly involved the complexation reaction and ion exchange of functional groups such as CO, O-C-O, -COOH and C-OH.
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Alves BSQ, Fernandes LA, Southard RJ. Biochar-cadmium retention and its effects after aging with Hydrogen Peroxide (H 2O 2). Heliyon 2021; 7:e08476. [PMID: 34926850 PMCID: PMC8649738 DOI: 10.1016/j.heliyon.2021.e08476] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 10/29/2021] [Accepted: 11/22/2021] [Indexed: 01/11/2023] Open
Abstract
Cadmium (Cd) is a highly toxic heavy metal that can become available to the environment from a variety of sources. The thermal transformation of organic residues into biochar can be a sustainable way to reduce cadmium environmental availability and, at the same time, a waste management solution. We studied sixteen biochars in two versions: unaged and aged with hydrogen peroxide (H2O2), regarding their Cd retention capacity. Feedstocks used included softwood biochar (SWB), almond shell (ASB), walnut shell (WSB), sewage sludge (SSB), and coconut shell (CSB); production temperatures varied from 450 to 900 °C. The objectives of this research were to understand the role of biochar properties on Cd adsorption rates and to evaluate how properties and adsorption rates vary as a function of H2O2 aging. Feedstock played a more important role than production temperature in determining biochar properties. Cd-adsorption capacity ranged from 0.67 to 415.67 mg/g, and the biochars that adsorbed the most Cd were SSB 700, SWB 800 - i, CSB 600 - m2, ASB 500-1, CSB 600 - m3, WSB 900, and CSB 600. The properties that best explained this variation in Cd retention were ash, sulfur, nitrogen and carbon content. Variation in oxygen content, cation exchange capacity and surface area had less impact of Cd adsorption. The H2O2 aging caused oxygen content to increase in all biochars, but the increase in Cd retention was not significant for the majority of the biochars and aging even reduced the Cd retention in some. Our results may help design biochars with maximized sites for Cd adsorption.
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Affiliation(s)
| | - Luiz Arnaldo Fernandes
- Institute of Agrarian Sciences, Federal University of Minas Gerais, Montes Claros, MG 39404547, Brazil
| | - Randal J. Southard
- Department of Land, Air and Water Resources, University of California-Davis, Davis, CA 95616, USA
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Single and Binary Adsorption Behaviour and Mechanisms of Cd2+, Cu2+ and Ni2+ onto Modified Biochar in Aqueous Solutions. Processes (Basel) 2021. [DOI: 10.3390/pr9101829] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The chitosan–EDTA modified magnetic biochar (E–CMBC) was successfully used as a novel adsorbent to remove heavy metals. The adsorption behaviour and mechanisms of E–CMBC to Cd2+, Cu2+ and Ni2+ were performed in single and binary system in aqueous solutions. In single–metal system, the adsorption process of Cd2+, Cu2+ and Ni2+ on E–CMBC fitted well with the Avrami fractional–order kinetics model and the Langmuir isotherm model. The measured maximum adsorption capacities were 61.08 mg g−1, 48.36 mg g−1 and 41.17 mg g−1 for Cd2+, Cu2+ and Ni2+, respectively. In binary–metal system, coexisting ions have obvious competitive adsorption behaviour on E–CMBC when the concentration of heavy meal beyond 20 mg L−1. The maximum adsorption capacities of the heavy metals were found to be lower than that in single–metal system. The order of the competitive adsorption ability was Cu2+ > Ni2+ > Cd2+. Interestingly, in Cd2+–Cu2+ system the earlier adsorbed Cd2+ could be completely replaced by Cu2+ from the solution. Different competitive adsorption ability of those heavy metal were due to the characteristics of heavy metal and resultant affinity of the adsorption sites on E–CMBC. The adsorption mechanism indicated that chemical adsorption played a dominating role. Therefore, E–CMBC could be a potential adsorbent for wastewater treatment.
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Saeed AAH, Harun NY, Sufian S, Bilad MR, Zakaria ZY, Jagaba AH, Ghaleb AAS, Mohammed HG. Pristine and Magnetic Kenaf Fiber Biochar for Cd 2+ Adsorption from Aqueous Solution. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:7949. [PMID: 34360240 PMCID: PMC8345446 DOI: 10.3390/ijerph18157949] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/16/2021] [Accepted: 07/20/2021] [Indexed: 02/03/2023]
Abstract
Development of strategies for removing heavy metals from aquatic environments is in high demand. Cadmium is one of the most dangerous metals in the environment, even under extremely low quantities. In this study, kenaf and magnetic biochar composite were prepared for the adsorption of Cd2+. The synthesized biochar was characterized using (a vibrating-sample magnetometer VSM), Scanning electron microscopy (SEM), X-ray powder diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS). The adsorption batch study was carried out to investigate the influence of pH, kinetics, isotherm, and thermodynamics on Cd2+ adsorption. The characterization results demonstrated that the biochar contained iron particles that help in improving the textural properties (i.e., surface area and pore volume), increasing the number of oxygen-containing groups, and forming inner-sphere complexes with oxygen-containing groups. The adsorption study results show that optimum adsorption was achieved under pH 5-6. An increase in initial ion concentration and solution temperature resulted in increased adsorption capacity. Surface modification of biochar using iron oxide for imposing magnetic property allowed for easy separation by external magnet and regeneration. The magnetic biochar composite also showed a higher affinity to Cd2+ than the pristine biochar. The adsorption data fit well with the pseudo-second-order and the Langmuir isotherm, with the maximum adsorption capacity of 47.90 mg/g.
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Affiliation(s)
- Anwar Ameen Hezam Saeed
- Department of Chemical Engineering, University Teknologi PETRONAS, Seri Iskandar 31750, Malaysia; (A.A.H.S.); (S.S.)
- Centre of Urban Resource Sustainability, University Teknologi PETRONAS, Bandar Seri Iskandar 32610, Malaysia
| | - Noorfidza Yub Harun
- Department of Chemical Engineering, University Teknologi PETRONAS, Seri Iskandar 31750, Malaysia; (A.A.H.S.); (S.S.)
- Centre of Urban Resource Sustainability, University Teknologi PETRONAS, Bandar Seri Iskandar 32610, Malaysia
| | - Suriati Sufian
- Department of Chemical Engineering, University Teknologi PETRONAS, Seri Iskandar 31750, Malaysia; (A.A.H.S.); (S.S.)
| | - Muhammad Roil Bilad
- Faculty of Integrated Technologies, University Brunei Darussalam, Jalan Tungku Link, Gadong BE1410, Brunei;
| | - Zaki Yamani Zakaria
- School of Chemical & Energy Engineering, University Teknologi Malaysia, Skudai 81310, Malaysia;
| | - Ahmad Hussaini Jagaba
- Department of Civil and Environmental Engineering, University Teknologi PETRONAS, Bandar Seri Iskandar 32610, Malaysia; (A.H.J.); (A.A.S.G.)
| | - Aiban Abdulhakim Saeed Ghaleb
- Department of Civil and Environmental Engineering, University Teknologi PETRONAS, Bandar Seri Iskandar 32610, Malaysia; (A.H.J.); (A.A.S.G.)
| | - Haetham G. Mohammed
- Department of Mechanical Engineering, University Teknologi PETRONAS, Bandar Seri Iskandar 32610, Malaysia;
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Long X, Chen H, Huang T, Zhang Y, Lu Y, Tan J, Chen R. Removal of Cd(II) from Micro-Polluted Water by Magnetic Core-Shell Fe 3O 4@Prussian Blue. Molecules 2021; 26:2497. [PMID: 33922916 PMCID: PMC8123264 DOI: 10.3390/molecules26092497] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 04/19/2021] [Accepted: 04/19/2021] [Indexed: 12/03/2022] Open
Abstract
A novel core-shell magnetic Prussian blue-coated Fe3O4 composites (Fe3O4@PB) were designed and synthesized by in-situ replication and controlled etching of iron oxide (Fe3O4) to eliminate Cd (II) from micro-polluted water. The core-shell structure was confirmed by TEM, and the composites were characterized by XRD and FTIR. The pore diameter distribution from BET measurement revealed the micropore-dominated structure of Fe3O4@PB. The effects of adsorbents dosage, pH, and co-existing ions were investigated. Batch results revealed that the Cd (II) adsorption was very fast initially and reached equilibrium after 4 h. A pH of 6 was favorable for Cd (II) adsorption on Fe3O4@PB. The adsorption rate reached 98.78% at an initial Cd (II) concentration of 100 μg/L. The adsorption kinetics indicated that the pseudo-first-order and Elovich models could best describe the Cd (II) adsorption onto Fe3O4@PB, indicating that the sorption of Cd (II) ions on the binding sites of Fe3O4@PB was the main rate-limiting step of adsorption. The adsorption isotherm well fitted the Freundlich model with a maximum capacity of 9.25 mg·g-1 of Cd (II). The adsorption of Cd (II) on the Fe3O4@PB was affected by co-existing ions, including Cu (II), Ni (II), and Zn (II), due to the competitive effect of the co-adsorption of Cd (II) with other co-existing ions.
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Affiliation(s)
- Xinxin Long
- College of Resources and Environment, University of Chinese Academy of Sciences, Huaibei Town 380, Huairou District, Beijing 101408, China; (X.L.); (H.C.); (J.T.)
- Key Laboratory of Groundwater Circulation and Evolution, School of Water Resources and Environment, China University of Geosciences, No. 29 Xueyuan Road, Haidian District, Beijing 100083, China
| | - Huanyu Chen
- College of Resources and Environment, University of Chinese Academy of Sciences, Huaibei Town 380, Huairou District, Beijing 101408, China; (X.L.); (H.C.); (J.T.)
| | - Tijun Huang
- School of Ecology and Environmental Science, Yunnan University, Kunming 650091, China; (T.H.); (Y.L.)
| | - Yajing Zhang
- Sino-Japan Friendship Centre for Environmental Protection, Beijing 100029, China;
| | - Yifeng Lu
- School of Ecology and Environmental Science, Yunnan University, Kunming 650091, China; (T.H.); (Y.L.)
| | - Jihua Tan
- College of Resources and Environment, University of Chinese Academy of Sciences, Huaibei Town 380, Huairou District, Beijing 101408, China; (X.L.); (H.C.); (J.T.)
| | - Rongzhi Chen
- College of Resources and Environment, University of Chinese Academy of Sciences, Huaibei Town 380, Huairou District, Beijing 101408, China; (X.L.); (H.C.); (J.T.)
- State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
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Jorge Gonçalves F, Alves Gurgel LV, Catone Soares L, Simões Teodoro F, Dias Ferreira GM, Coelho YL, Mendes da Silva LH, Prim D, Gil LF. Application of pyridine-modified chitosan derivative for simultaneous adsorption of Cu(II) and oxyanions of Cr(VI) from aqueous solution. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 282:111939. [PMID: 33485033 DOI: 10.1016/j.jenvman.2021.111939] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 12/23/2020] [Accepted: 12/30/2020] [Indexed: 05/02/2023]
Abstract
The bioadsorbent C1, which is a chitosan derivative prepared in a one-step synthesis, was successfully used to adsorb Cr(VI) and Cu(II) simultaneously. Here, for the first time the simultaneous adsorption of a cation and an anion was modeled using the Corsel model for kinetics and the Real Adsorbed Solution Theory model for equilibrium data. Batch studies of the adsorption of Cu(II) and Cr(VI) in single and binary aqueous solutions were performed as a function of initial solute concentration, contact time, and solution pH. The maximum adsorption capacities of C1 in single and binary aqueous solutions were 1.84 and 1.13 mmol g-1 for Cu(II) and 3.86 and 0.98 mmol g-1 for Cr(VI), respectively. The reuse of C1 was investigated, with Cu(II) ions being almost completely desorbed and fully re-adsorbed. For Cr(VI), the desorption was incomplete resulting in a lower re-adsorption. Energy-dispersive X-ray spectroscopy was used for mapping the distributions of Cr(VI) and Cu(II) adsorbed on the C1 surface in single and binary adsorption systems. Isothermal titration calorimetry experiments were performed for Cr(VI) and Cu(II) adsorption in single solutions. The thermodynamic parameters of adsorption showed that the adsorption of both metal ions was enthalpically driven, but entropically unfavorable.
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Affiliation(s)
- Fernanda Jorge Gonçalves
- Environmental Organic Chemistry Group, Department of Chemistry, Institute of Biological and Exact Sciences, Federal University of Ouro Preto, Campus Universitário Morro do Cruzeiro, Bauxita, Ouro Preto, 35400-000, Minas Gerais, Brazil
| | - Leandro Vinícius Alves Gurgel
- Environmental Organic Chemistry Group, Department of Chemistry, Institute of Biological and Exact Sciences, Federal University of Ouro Preto, Campus Universitário Morro do Cruzeiro, Bauxita, Ouro Preto, 35400-000, Minas Gerais, Brazil
| | - Liliane Catone Soares
- Environmental Organic Chemistry Group, Department of Chemistry, Institute of Biological and Exact Sciences, Federal University of Ouro Preto, Campus Universitário Morro do Cruzeiro, Bauxita, Ouro Preto, 35400-000, Minas Gerais, Brazil
| | - Filipe Simões Teodoro
- Environmental Organic Chemistry Group, Department of Chemistry, Institute of Biological and Exact Sciences, Federal University of Ouro Preto, Campus Universitário Morro do Cruzeiro, Bauxita, Ouro Preto, 35400-000, Minas Gerais, Brazil
| | - Guilherme Max Dias Ferreira
- Department of Chemistry, Federal University of Lavras, Campus Universitário, Lavras, 37200-000, Minas Gerais, Brazil
| | - Yara Luiza Coelho
- Colloidal and Macromolecular Green Chemistry Group, Department of Chemistry, Federal University of Viçosa, Av. P.H. Rolfs, s/n°, Viçosa, 36570-000, Minas Gerais, Brazil
| | - Luis Henrique Mendes da Silva
- Colloidal and Macromolecular Green Chemistry Group, Department of Chemistry, Federal University of Viçosa, Av. P.H. Rolfs, s/n°, Viçosa, 36570-000, Minas Gerais, Brazil
| | - Damien Prim
- University of Versailles St-Quentin-en-Yvelines, Institut Lavoisier de Versailles UMR CNRS 8180, 45, avenue des Etats-Unis, 78035, Versailles, France
| | - Laurent Frédéric Gil
- Environmental Organic Chemistry Group, Department of Chemistry, Institute of Biological and Exact Sciences, Federal University of Ouro Preto, Campus Universitário Morro do Cruzeiro, Bauxita, Ouro Preto, 35400-000, Minas Gerais, Brazil.
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17
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da Silva Alves DC, Healy B, Pinto LADA, Cadaval TRS, Breslin CB. Recent Developments in Chitosan-Based Adsorbents for the Removal of Pollutants from Aqueous Environments. Molecules 2021; 26:594. [PMID: 33498661 PMCID: PMC7866017 DOI: 10.3390/molecules26030594] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/18/2021] [Accepted: 01/21/2021] [Indexed: 12/18/2022] Open
Abstract
The quality of water is continuously under threat as increasing concentrations of pollutants escape into the aquatic environment. However, these issues can be alleviated by adsorbing pollutants onto adsorbents. Chitosan and its composites are attracting considerable interest as environmentally acceptable adsorbents and have the potential to remove many of these contaminants. In this review the development of chitosan-based adsorbents is described and discussed. Following a short introduction to the extraction of chitin from seafood wastes, followed by its conversion to chitosan, the properties of chitosan are described. Then, the emerging chitosan/carbon-based materials, including magnetic chitosan and chitosan combined with graphene oxide, carbon nanotubes, biochar, and activated carbon and also chitosan-silica composites are introduced. The applications of these materials in the removal of various heavy metal ions, including Cr(VI), Pb(II), Cd(II), Cu(II), and different cationic and anionic dyes, phenol and other organic molecules, such as antibiotics, are reviewed, compared and discussed. Adsorption isotherms and adsorption kinetics are then highlighted and followed by details on the mechanisms of adsorption and the role of the chitosan and the carbon or silica supports. Based on the reviewed papers, it is clear, that while some challenges remain, chitosan-based materials are emerging as promising adsorbents.
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Affiliation(s)
- Daniele C. da Silva Alves
- Department of Chemistry, Maynooth University, W23 F2H6 Maynooth, Co. Kildare, Ireland; (D.C.d.S.A.); (B.H.)
- School of Chemistry and Food, Federal University of Rio Grande, Rio Grande, RS 96203-900, Brazil; (L.A.d.A.P.); (T.R.S.C.J.)
| | - Bronach Healy
- Department of Chemistry, Maynooth University, W23 F2H6 Maynooth, Co. Kildare, Ireland; (D.C.d.S.A.); (B.H.)
| | - Luiz A. de Almeida Pinto
- School of Chemistry and Food, Federal University of Rio Grande, Rio Grande, RS 96203-900, Brazil; (L.A.d.A.P.); (T.R.S.C.J.)
| | - Tito R. Sant’Anna Cadaval
- School of Chemistry and Food, Federal University of Rio Grande, Rio Grande, RS 96203-900, Brazil; (L.A.d.A.P.); (T.R.S.C.J.)
| | - Carmel B. Breslin
- Department of Chemistry, Maynooth University, W23 F2H6 Maynooth, Co. Kildare, Ireland; (D.C.d.S.A.); (B.H.)
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18
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Li X, Wang C, Tian J, Liu J, Chen G. Comparison of adsorption properties for cadmium removal from aqueous solution by Enteromorpha prolifera biochar modified with different chemical reagents. ENVIRONMENTAL RESEARCH 2020; 186:109502. [PMID: 32361077 DOI: 10.1016/j.envres.2020.109502] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 03/17/2020] [Accepted: 04/07/2020] [Indexed: 06/11/2023]
Abstract
Using biochar to remove heavy metals from water is environmentally beneficial. In this study, three kinds of chemical reagents, including ZnCl2, H3PO4 and KMnO4, were introduced to modify the biochar derived from Enteromorpha prolifera. The performance of these modified biochar in removing Cadmium ions (Cd(II)) from water was investigated. The physicochemical properties of activated biochars were characterized by N2-sorption, thermal gravity and differential thermal gravity (TG/DTG), scanning electron microscopy (SEM), elemental analysis and Fourier transform infrared spectroscopy (FTIR). The results showed that the removal rate of Cd(II) from water by EP biochar modified with H3PO4 was significantly increased, and the maximum adsorption capacity of Cd(II) reached to 423 mg/g for PBC. Moreover, the adsorption of Cd(II) from water by phosphoric acid modified biochar was very fast, and the saturation adsorption of Cd(II) was reached within 1 h. Compared with pseudo first-order model, pseudo secondary-order model was much more suitable for analyzing the adsorption kinetics data of Cd(II) onto KBC or ZBC. The adsorption of Cd(II) onto PBC was analyzed by the intra-particle diffusion kinetic model, where the value of R2 was high as 0.98. The Langmuir model was fit for phosphoric acid modified biochar.
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Affiliation(s)
- Xiangping Li
- China-Australia Centre for Sustainable Urban Development, School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, PR China; Qingdao Institute for Ocean Technology of Tianjin University, Qingdao, 266235, PR China.
| | - Chuanbin Wang
- China-Australia Centre for Sustainable Urban Development, School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, PR China
| | - Jingnan Tian
- China-Australia Centre for Sustainable Urban Development, School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, PR China
| | - Juping Liu
- China-Australia Centre for Sustainable Urban Development, School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, PR China
| | - Guanyi Chen
- China-Australia Centre for Sustainable Urban Development, School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, PR China; Qingdao Institute for Ocean Technology of Tianjin University, Qingdao, 266235, PR China; Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin, 300354, PR China.
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19
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Liang RH, Li Y, Huang L, Wang XD, Hu XX, Liu CM, Chen MS, Chen J. Pb2+ adsorption by ethylenediamine-modified pectins and their adsorption mechanisms. Carbohydr Polym 2020; 234:115911. [DOI: 10.1016/j.carbpol.2020.115911] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 12/28/2019] [Accepted: 01/23/2020] [Indexed: 12/14/2022]
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20
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Yang Z, Chen X, Li S, Ma W, Li Y, He Z, Hu H, Wang T. Effective removal of Cd(II) from aqueous solution based on multifunctional nanoporous silicon derived from solar kerf loss waste. JOURNAL OF HAZARDOUS MATERIALS 2020; 385:121522. [PMID: 31740312 DOI: 10.1016/j.jhazmat.2019.121522] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 10/07/2019] [Accepted: 10/21/2019] [Indexed: 06/10/2023]
Abstract
Recycling of kerf-loss slurry waste has become a meaningful and urgent issue in recent years. In this study, a novel hybrid material was prepared by Ag-assisted chemical etching kerf loss silicon waste and subsequently functionalized by a facile three-step graft process of 3-aminopropyltrimethoxy-silane, maleic anhydride, and ethylenediamine, named as EDA-MAH-APTES-NPSi, which could work as an effective adsorbent for removal of Cd(Ⅱ) from aqueous solution. The effect of initial pH, absorption duration, and metal ion concentrations on absorption performance were investigated. The adsorption equilibrium achieved after 120 min, the maximum adsorption capacity reached up to 210.01 mg/g and pH was at 5.5. The adsorption kinetic was fitted in the pseudo-second-order model and the Freundlich equation provided an accurate description for adsorption behavior. The XPS and FT-IR analysis manifested that Cd(Ⅱ) removal might be ascribed to the adsorption on the surface organic functional group by chemical chelating reaction and the ion exchange reaction. The EDA-MAH-APTES-NPSi maintained excellent adsorption capacity which decreased approximately 15.3 % (from 40.5-34.3 mg/g) after five successive regenerated cycles. The work confirms the potential of Cd(Ⅱ) removal from aqueous solution based on the modified NPSi and opens up a new way for recycling silicon cutting waste.
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Affiliation(s)
- Ziheng Yang
- Institution of Materials Science and Engineering, Yunnan University, Kunming 650091, China
| | - Xiuhua Chen
- Institution of Materials Science and Engineering, Yunnan University, Kunming 650091, China.
| | - Shaoyuan Li
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization/Silicon Metallurgy and Silicon Material Engineering Research Center of Universities in Yunnan Province, Kunming University of Science and Technology, Kunming 650093, China.
| | - Wenhui Ma
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization/Silicon Metallurgy and Silicon Material Engineering Research Center of Universities in Yunnan Province, Kunming University of Science and Technology, Kunming 650093, China
| | - Yi Li
- Institution of Materials Science and Engineering, Yunnan University, Kunming 650091, China
| | - Zudong He
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization/Silicon Metallurgy and Silicon Material Engineering Research Center of Universities in Yunnan Province, Kunming University of Science and Technology, Kunming 650093, China
| | - Huanran Hu
- Institution of Materials Science and Engineering, Yunnan University, Kunming 650091, China
| | - Tong Wang
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization/Silicon Metallurgy and Silicon Material Engineering Research Center of Universities in Yunnan Province, Kunming University of Science and Technology, Kunming 650093, China
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21
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Yi Y, Huang Z, Lu B, Xian J, Tsang EP, Cheng W, Fang J, Fang Z. Magnetic biochar for environmental remediation: A review. BIORESOURCE TECHNOLOGY 2020; 298:122468. [PMID: 31839494 DOI: 10.1016/j.biortech.2019.122468] [Citation(s) in RCA: 140] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 11/13/2019] [Accepted: 11/17/2019] [Indexed: 05/22/2023]
Abstract
The difficulty of separating the powdered biochar from the environmental medium may lead to secondary pollution and hinder the large-scale application of biochar as an adsorbent. An effective strategy to solve this bottleneck is to introduce transition metals and their oxides into the biochar matrix, creating easily separable magnetic biochar. Magnetic biochar is also effective for the removal of pollutants from aqueous solution. This review comprises a systematic analysis of 109 papers published in recent years (From 2011 to June 2019), and summarises the synthetic methods and raw materials required for magnetic biochar preparation. The basic physicochemical properties of magnetic biochar are expounded, together with findings from relevant studies, and the application of magnetic biochar as an adsorbent or catalyst in environmental remediation are summarised. Other applications of magnetic biochar are also discussed. Finally, some constructive suggestions are given for the future direction of magnetic biochar research.
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Affiliation(s)
- Yunqiang Yi
- School of Environment, South China Normal University, Guangzhou 510006, China; Guangdong Technology Research Center for Ecological Management and Remediation of Water System, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, Guangzhou 510006, China
| | - Zhexi Huang
- School of Environment, South China Normal University, Guangzhou 510006, China; Guangdong Technology Research Center for Ecological Management and Remediation of Water System, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, Guangzhou 510006, China
| | - Baizhou Lu
- School of Environment, South China Normal University, Guangzhou 510006, China; Guangdong Technology Research Center for Ecological Management and Remediation of Water System, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, Guangzhou 510006, China
| | - Jingyi Xian
- School of Environment, South China Normal University, Guangzhou 510006, China; Guangdong Technology Research Center for Ecological Management and Remediation of Water System, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, Guangzhou 510006, China
| | - Eric Pokeung Tsang
- Department of Science and Environmental Studies, The Education University of Hong Kong, Hong Kong 00852, China
| | - Wen Cheng
- School of Environment, South China Normal University, Guangzhou 510006, China; Guangdong Technology Research Center for Ecological Management and Remediation of Water System, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, Guangzhou 510006, China
| | - Jianzhang Fang
- School of Environment, South China Normal University, Guangzhou 510006, China; Guangdong Technology Research Center for Ecological Management and Remediation of Water System, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, Guangzhou 510006, China
| | - Zhanqiang Fang
- School of Environment, South China Normal University, Guangzhou 510006, China; Guangdong Technology Research Center for Ecological Management and Remediation of Water System, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, Guangzhou 510006, China.
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22
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Wang Y, Wang L, Deng X, Gao H. A facile pyrolysis synthesis of biochar/ZnO passivator: immobilization behavior and mechanisms for Cu (II) in soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:1888-1897. [PMID: 31758482 DOI: 10.1007/s11356-019-06888-z] [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: 08/14/2019] [Accepted: 10/25/2019] [Indexed: 06/10/2023]
Abstract
Waste biomass can be recycled to prepare biochar for soil restoration, in which process soil fertility would not be lost. In this work, biochar was prepared from waste pomelo peel, combined with ZnO, to be used to immobilize Cu(II) in contaminated soil, whose maximum adsorption capacity was up to 216.37 mg g-1. Due to combination of ZnO, the BET surface area of biochar increased from 2.39 to 18.53 m2 g-1. Meanwhile, the surface functional groups increased, which was conducive to fixation of metal ion on the surface of biochar. Both pseudo-second-order kinetics and Langmuir isotherm model fit the experimental data well. Adsorption was easy to happen since the adsorption site on the surface of biochar/ZnO had a strong affinity with Cu(II). In addition, mechanism investigation indicated that Cu(II) was bond with biochar/ZnO mainly by non-bioavailable state (75.6%) primarily. It inferred that biochar/ZnO was an efficient and promising passivator in reducing heavy metal risk in soil.
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Affiliation(s)
- Ying Wang
- State Key Laboratory Base of Eco-Chemical Engineering, Qingdao University of Science & Technology, Qingdao, 266042, PR China
| | - Luxing Wang
- State Key Laboratory Base of Eco-Chemical Engineering, Qingdao University of Science & Technology, Qingdao, 266042, PR China
| | - Xiaoyan Deng
- State Key Laboratory Base of Eco-Chemical Engineering, Qingdao University of Science & Technology, Qingdao, 266042, PR China.
| | - Hongtao Gao
- State Key Laboratory Base of Eco-Chemical Engineering, Qingdao University of Science & Technology, Qingdao, 266042, PR China.
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23
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Zheng L, Gao Y, Du J, Zhang W, Huang Y, Wang L, Zhao Q, Pan X. A novel, recyclable magnetic biochar modified by chitosan–EDTA for the effective removal of Pb(ii) from aqueous solution. RSC Adv 2020; 10:40196-40205. [PMID: 35520875 PMCID: PMC9057498 DOI: 10.1039/d0ra07499c] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 10/29/2020] [Indexed: 11/21/2022] Open
Abstract
We report here the preparation process of a recyclable magnetic biochar functionalized with chitosan and ethylenediaminetetraacetic acid (E-CMBC). This prepared biochar was then evaluated regarding its adsorption performance for Pb(ii) from an aqueous solution along with the potential adsorption mechanisms behind this process. XRD and SEM analyses showed that the magnetite particles were successfully embedded into biochar and the subsequent surface coating of chitosan and ethylenediaminetetraacetic acid modification were also successful. The effects of the adsorbent dosage, ionic strength, initial solution pH, and contact time, on adsorption kinetics, adsorption isotherms, adsorption thermodynamics and regeneration performance were investigated. The removal of Pb(ii) was dramatically improved to 156.68 mg g−1 compared with that by unmodified pristine biochar (10.90 mg g−1) at pH 3.0. In the range of pH 2.0–5.0, the adsorption performance of Pb(ii) by E-CMBC remained above 152.50 mg g−1, which suggested that the adsorption capacity of the novel sorbent was not impacted by the competing adsorption of hydrogen cations under acidic conditions. The adsorption process could be well described by the Avrami fractional-order and Langmuir models. Thermodynamic analysis proved that the adsorption process was spontaneous and endothermic. The magnetic strength of E-CMBC was measured as 3.1 emu g−1, suggesting that the consumed E-CMBC could be separated from water by an external magnet. A regeneration study showed that after three cycles of adsorption–desorption, 78.60% of the sorbent was recovered and 97.26% of the adsorption capacity was retained. The adsorption mechanism investigation indicated that Pb(ii) adsorption was mainly due to the presence of functional amides and carboxyl groups of E-CMBC forming strong chemical complexation. In conclusion, E-CMBC is a novel, recyclable, and highly efficient adsorbent for removal of Pb(ii) from aqueous solution. EDTA modified magnetic chitosan biochar was synthesized and used as an adsorbent for adsorption of Pb(ii).![]()
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Affiliation(s)
- Liwen Zheng
- College of Environment
- Zhejiang University of Technology
- Hangzhou 310032
- PR China
- Qilu University of Technology (Shandong Academy of Sciences)
| | - Yongchao Gao
- Qilu University of Technology (Shandong Academy of Sciences)
- Ecology Institute
- Shandong Provincial Key Laboratory of Applied Microbiology
- Jinan 250103
- PR China
| | - Jianhua Du
- Global Centre for Environmental Remediation
- Faculty of Science
- University of Newcastle
- Callaghan
- Australia
| | - Wen Zhang
- Qilu University of Technology (Shandong Academy of Sciences)
- Ecology Institute
- Shandong Provincial Key Laboratory of Applied Microbiology
- Jinan 250103
- PR China
| | - Yujie Huang
- Qilu University of Technology (Shandong Academy of Sciences)
- Ecology Institute
- Shandong Provincial Key Laboratory of Applied Microbiology
- Jinan 250103
- PR China
| | - Leilei Wang
- Qilu University of Technology (Shandong Academy of Sciences)
- Ecology Institute
- Shandong Provincial Key Laboratory of Applied Microbiology
- Jinan 250103
- PR China
| | - Qingqing Zhao
- Qilu University of Technology (Shandong Academy of Sciences)
- Ecology Institute
- Shandong Provincial Key Laboratory of Applied Microbiology
- Jinan 250103
- PR China
| | - Xiangliang Pan
- College of Environment
- Zhejiang University of Technology
- Hangzhou 310032
- PR China
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24
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Park JH, Wang JJ, Kim SH, Kang SW, Jeong CY, Jeon JR, Park KH, Cho JS, Delaune RD, Seo DC. Cadmium adsorption characteristics of biochars derived using various pine tree residues and pyrolysis temperatures. J Colloid Interface Sci 2019; 553:298-307. [PMID: 31212229 DOI: 10.1016/j.jcis.2019.06.032] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 06/08/2019] [Accepted: 06/11/2019] [Indexed: 10/26/2022]
Abstract
This study investigated the characteristics of biochars derived using various pine tree residues and pyrolysis temperatures and evaluated their Cd adsorption behaviors. The characteristics of pine tree residue biochars (PRBs) were dominantly affected by the pyrolysis temperature, and the optimum pyrolysis temperature for Cd adsorption was 600 °C. The adsorption of Cd by PRBs was divided into two stages: rapid adsorption on the initial boundary layer and slow adsorption by intraparticle diffusion. The Cd adsorption characteristics of all the PRBs were well described by pseudo-second-order and Langmuir isotherm models, and the maximum adsorption capacity was the highest in pine bark biochar (85.8 mg/g). The amounts of the cations released from the mixed pine tree residue biochars (M-PRBs) during Cd adsorption were increased, while the amount of phosphate released was decreased, indicating that exchangeable cations and phosphate on the biochar affected the Cd adsorption. In particular, the amount of Cd removed by the exchangeable cations corresponds to 23.6% of the total adsorption amount. Spectroscopic analyses using FTIR showed that the Cd adsorption on M-PRB was associated with functional groups such as CC, COH and COOH. Overall, the use of biochars derived from pine tree residue as an adsorbent is considered to be effective for both the treatment of wastewater containing heavy metals and the recycling of forest residues.
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Affiliation(s)
- Jong-Hwan Park
- Division of Applied Life Science (BK21 Plus) & Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, South Korea
| | - Jim J Wang
- School of Plant, Environmental and Soil Sciences, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA
| | - Seong-Heon Kim
- Soil and Fertilizer Division, National Institute of Agricultural Sciences, Wanju 55365, South Korea
| | - Se-Won Kang
- Red River Research Station, Louisiana State University Agricultural Center, Bossier City, LA 71112, USA
| | - Chang Yoon Jeong
- Red River Research Station, Louisiana State University Agricultural Center, Bossier City, LA 71112, USA
| | - Jong-Rok Jeon
- Division of Applied Life Science (BK21 Plus) & Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, South Korea; Department of Agricultural Chemistry and Food Science & Technology, Gyeongsang National University, Jinju 52828, South Korea
| | - Ki Hun Park
- Division of Applied Life Science (BK21 Plus) & Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, South Korea; Department of Agricultural Chemistry and Food Science & Technology, Gyeongsang National University, Jinju 52828, South Korea
| | - Ju-Sik Cho
- Department of Bio-Environmental Sciences, Sunchon National University, Suncheon 57922, South Korea
| | - Ronald D Delaune
- Department of Oceanography and Costal Sciences, College of the Coast and Environment, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Dong-Cheol Seo
- Division of Applied Life Science (BK21 Plus) & Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, South Korea; Department of Agricultural Chemistry and Food Science & Technology, Gyeongsang National University, Jinju 52828, South Korea.
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25
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Mozaffari M, Emami MRS, Binaeian E. A novel thiosemicarbazide modified chitosan (TSFCS) for efficiency removal of Pb (II) and methyl red from aqueous solution. Int J Biol Macromol 2019; 123:457-467. [DOI: 10.1016/j.ijbiomac.2018.11.106] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 10/20/2018] [Accepted: 11/12/2018] [Indexed: 11/25/2022]
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26
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Zhang Y, Bian T, Xia D, Wang D, Zhang Y, Zheng X, Li Z. Optimum selective separation of Cu(ii) using 3D ordered macroporous chitosan films with different pore sizes. RSC Adv 2019; 9:13065-13076. [PMID: 35520773 PMCID: PMC9063786 DOI: 10.1039/c9ra00773c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 04/06/2019] [Indexed: 11/21/2022] Open
Abstract
3DOM-IICF coupled with colloidal crystal template and ion imprinting technology (IIP) was used to absorb copper ions (Cu(ii)) in water. Added polystyrene (PS) micro-spheres to form a three-dimensional ordered macroporous structure.
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Affiliation(s)
- Yuzhe Zhang
- School of Environmental and Safety Engineering
- Changzhou University
- Changzhou 213164
- PR China
| | - Tingting Bian
- School of Environmental and Safety Engineering
- Changzhou University
- Changzhou 213164
- PR China
| | - Da Xia
- School of Environmental and Safety Engineering
- Changzhou University
- Changzhou 213164
- PR China
| | - Dandan Wang
- School of Environmental and Safety Engineering
- Changzhou University
- Changzhou 213164
- PR China
| | - Yi Zhang
- School of Environmental and Safety Engineering
- Changzhou University
- Changzhou 213164
- PR China
| | - Xudong Zheng
- School of Environmental and Safety Engineering
- Changzhou University
- Changzhou 213164
- PR China
| | - Zhongyu Li
- School of Environmental and Safety Engineering
- Changzhou University
- Changzhou 213164
- PR China
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology
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27
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Wang RZ, Huang DL, Liu YG, Zhang C, Lai C, Zeng GM, Cheng M, Gong XM, Wan J, Luo H. Investigating the adsorption behavior and the relative distribution of Cd 2+ sorption mechanisms on biochars by different feedstock. BIORESOURCE TECHNOLOGY 2018; 261:265-271. [PMID: 29673995 DOI: 10.1016/j.biortech.2018.04.032] [Citation(s) in RCA: 171] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 04/02/2018] [Accepted: 04/07/2018] [Indexed: 05/22/2023]
Abstract
The objective of this study was to investigate the adsorption behavior and the relative distribution of Cd2+ sorption mechanisms on biochars by different feedstock. Bamboo biochars (BBCs), corn straw biochars (CBCs) and pig manure biochars (PBCs) were prepared at 300-700 °C. Adsorption results showed PBCs have the best adsorption capacity for Cd2+, the extra adsorption capacity of PBCs mainly attributed to the precipitation or cation exchange, which played an important role in the removal of Cd2+ by PBCs. The contribution of involved Cd2+ removal mechanism varied with feedstock due to the different components and oxygen-containing functional groups. Cd2+-π interaction was the predominant mechanism for Cd2+ removal on biochars and the contribution proportion significantly decreased from 82.17% to 61.83% as the ash content increased from 9.40% to 58.08%. Results from this study may suggest that the application of PBC is a feasible strategy for removing metal contaminants from aqueous solutions.
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Affiliation(s)
- Rong-Zhong Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, People's Republic of China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, People's Republic of China
| | - Dan-Lian Huang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, People's Republic of China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, People's Republic of China.
| | - Yun-Guo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, People's Republic of China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, People's Republic of China
| | - Chen Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, People's Republic of China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, People's Republic of China
| | - Cui Lai
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, People's Republic of China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, People's Republic of China
| | - Guang-Ming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, People's Republic of China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, People's Republic of China
| | - Min Cheng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, People's Republic of China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, People's Republic of China
| | - Xiao-Min Gong
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, People's Republic of China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, People's Republic of China
| | - Jia Wan
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, People's Republic of China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, People's Republic of China
| | - Hao Luo
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, People's Republic of China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, People's Republic of China
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28
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Bombuwala Dewage N, Fowler RE, Pittman CU, Mohan D, Mlsna T. Lead (Pb2+) sorptive removal using chitosan-modified biochar: batch and fixed-bed studies. RSC Adv 2018; 8:25368-25377. [PMID: 35539806 PMCID: PMC9082581 DOI: 10.1039/c8ra04600j] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 07/06/2018] [Indexed: 11/21/2022] Open
Abstract
Chitosan-Modified fast pyrolysis BioChar (CMBC) was used to remove Pb2+ from water. CMBC was made by mixing pine wood biochar with a 2% aqueous acetic acid chitosan (85% deacylated chitin) solution followed by treatment with NaOH. The characterizations of both CMBC and Non-Modified BioChar (NMBC) were done using diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), scanning electron microscopy (SEM), surface area measurements (SBET), elemental analysis, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and ζ-potential measurements. Elemental analysis indicated that chitosan accounts for about 25% weight of the CMBC. The Langmuir maximum adsorption capacity of CMBC at pH 5 was 134 mg g−1versus 48.2 mg g−1 for NMBC at 318 K. CMBC column adsorption studies resulted in a capacity of 5.8 mg g−1 (Pb2+ conc. 150 mg L−1; pH 5; column dia 1.0 cm; column length 20 cm; bed height 5.0 cm; flow rate 2.5 mL min−1). CMBC removed more Pb2+ than NMBC suggesting that modification with chitosan generates amine groups on the biochar surface which enhance Pb2+ adsorption. The modes of Pb2+ adsorption on CMBC were studied by comparing DRIFTS and X-ray photoelectron spectroscopy spectra before and after Pb2+ adsorption. Batch and fixed-bed column studies for the removal of lead (Pb2+) from aqueous solution by chitosan-modified pinewood biochar.![]()
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Affiliation(s)
| | - Ruth E. Fowler
- Department of Chemistry
- Mississippi State University
- Starkville
- USA
| | | | - Dinesh Mohan
- School of Environmental Sciences
- Jawaharlal Nehru University
- New Delhi 110067
- India
| | - Todd Mlsna
- Department of Chemistry
- Mississippi State University
- Starkville
- USA
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