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Sangkarak S, Kittipongvises S, Kitkaew D, Chaveanghong S, Ittisupornrat S, Phetrak A, Lohwacharin J. Influence of the iron-oxide mass fractions of magnetic powdered activated carbon on its hexavalent chromium adsorption performance in water. CHEMOSPHERE 2024; 364:142997. [PMID: 39097106 DOI: 10.1016/j.chemosphere.2024.142997] [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: 05/20/2024] [Revised: 07/18/2024] [Accepted: 07/31/2024] [Indexed: 08/05/2024]
Abstract
Magnetic powdered activated carbon (Mag-PAC) is an effective adsorbent to remove hexavalent chromium (Cr(VI)) from water and can be recovered for reuse. However, the tradeoff between the adsorption performance of Cr(VI) and magnetic properties of Mag-PAC remains unclear. Herein, we prepared a series of Mag-PAC adsorbents containing various iron-oxide mass fractions with FeSO4·7H2O as the precursor, using a facile wet-chemical precipitation route and conducted batch experiments to evaluate the Cr(VI) adsorption performance. Results revealed that Mag-PAC was functionalized by magnetic iron oxide comprising crystalline goethite and magnetite structures. Furthermore, its adsorption performance was highly dependent on pH and was most effective at an initial solution pH of 2. Both the sorption rate constant and Cr(VI) adsorption capacity were greatly influenced by magnetization, and they gradually decreased as the iron-oxide mass fraction increased. Among the prepared adsorbents, Mag-PAC-75 (∼32% wt iron) exhibited not only an excellent Cr(VI) adsorption performance (Langmuir adsorption capacity: 75.76 mg/g) but also effective magnetic properties (saturation magnetization: 9.66 emu/g). Coexisting anions had a negligible competitive effect on Cr(VI) removal by Mag-PAC-75 at an initial pH of 2, whereas the presence of tannic acid markedly improved the Cr(VI) elimination. The presence of trivalent chromium on the surface of Mag-PAC-75 confirmed via X-ray photoelectron spectroscopy indicated that some synergistic redox reactions may occur during the sorption process. After five regeneration cycles using NaOH, Mag-PAC-75 continued to exhibit a high Cr(VI) removal efficiency and magnetic stability. These findings indicate that optimizing the adsorption performance and magnetic properties is a key factor for realizing the practical application of Mag-PAC for Cr(VI) removal. Overall, Mag-PAC may have been a promising application prospect for Cr(VI) removal from water due to its high adsorption capacity and magnetic properties, coupled with its good reusability and magnetic stability after regeneration cycles.
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Affiliation(s)
- Sirirat Sangkarak
- Department of Social and Environmental Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | | | - Duangta Kitkaew
- Department of Sanitary Engineering, Faculty of Public Health, Mahidol University, Bangkok, Thailand; Center of Excellence on Environmental Health and Toxicology (EHT), OPS, MHESI, Thailand
| | - Suwilai Chaveanghong
- Mahidol University Frontier Research Facility (MU-FRF), Mahidol University, 999 Phuttamonthon Sai 4 Rd, Salaya, Nakhon Pathom, Thailand
| | - Suda Ittisupornrat
- Climate Change and Environment Research Center, Department of Climate Change and Environment, Pathumthani, Thailand
| | - Athit Phetrak
- Department of Social and Environmental Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
| | - Jenyuk Lohwacharin
- Department of Environmental and Sustainable Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand
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Ren J, Li Q, Zhu Z, Qiu Y, Yu F, Zhou T, Yang X, Ye K, Wang Y, Ma J, Zhao J. Highly Selective Recovery of Gold by In Situ Magnetic Field-Assisted Fe/Co-MOF@PDA/NdFeB Double Network Gel. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2404241. [PMID: 39206614 DOI: 10.1002/smll.202404241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Revised: 08/01/2024] [Indexed: 09/04/2024]
Abstract
There are enormous economic benefits to conveniently increasing the selective recovery capacity of gold. Fe/Co-MOF@PDA/NdFeB double-network organogel (Fe/Co-MOF@PDA NH) is synthesized by aggregation assembly strategy. The package of PDA provides a large number of nitrogen-containing functional groups that can serve as adsorption sites for gold ions, resulting in a 21.8% increase in the ability of the material to recover gold. Fe/Co-MOF@PDA NH possesses high gold recovery capacity (1478.87 mg g-1) and excellent gold selectivity (Kd = 5.71 mL g-1). With the assistance of an in situ magnetic field, the gold recovery capacity of Fe/Co-MOF@PDA NH is increased from 1217.93 to 1478.87 mg g-1, and the recovery rate increased by 24.7%. The above excellent performance is attributed to the efficient reduction of gold by FDC/FC+, Co2+/Co3+ double reducing couple, and the optimization of the reduction reaction by the magnetic field. After the samples are calcined, high-purity gold (95.6%, 22K gold) is recovered by magnetic separation. This study proposes a forward-looking in situ energy field-assisted strategy to enhance precious metal recovery, which has a guiding role in the development of low-carbon industries.
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Affiliation(s)
- Jianran Ren
- School of Civil Engineering, Kashi University, Kashi, 844000, P. R. China
- Research Center for Environmental Functional Materials, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Qiang Li
- School of Civil Engineering, Kashi University, Kashi, 844000, P. R. China
- Research Center for Environmental Functional Materials, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Zhiliang Zhu
- Research Center for Environmental Functional Materials, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Yanling Qiu
- Research Center for Environmental Functional Materials, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Fei Yu
- College of Oceanography and Ecological Science, Shanghai Ocean University, No 999, Huchenghuan Road, Shanghai, 201306, P. R. China
| | - Tao Zhou
- Research Center for Environmental Functional Materials, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Xue Yang
- School of Civil Engineering, Kashi University, Kashi, 844000, P. R. China
| | - Kang Ye
- School of Civil Engineering, Kashi University, Kashi, 844000, P. R. China
| | - Yabo Wang
- School of Civil Engineering, Kashi University, Kashi, 844000, P. R. China
| | - Jie Ma
- School of Civil Engineering, Kashi University, Kashi, 844000, P. R. China
- Research Center for Environmental Functional Materials, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Jianfu Zhao
- Research Center for Environmental Functional Materials, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
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Li B, Li W, Zuo Q, Yin W, Li P, Wu J. Enhanced Cr(VI) elimination from water by goethite-impregnated activated carbon coupled with weak electric field. ENVIRONMENTAL RESEARCH 2024; 248:118253. [PMID: 38278507 DOI: 10.1016/j.envres.2024.118253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/08/2023] [Accepted: 12/03/2023] [Indexed: 01/28/2024]
Abstract
A weak electric field (WEF, 2 mA cm-2) was employed to promote Fe(III)/Fe(II) cycle on goethite-impregnated activated carbon (FeOOH@AC) filled in a continuous-flow column for enhanced Cr(VI) elimination from water. Surficial analysis and Cr species distribution showed that α-FeOOH of 0.2-1 μm was successfully synthesized and evenly loaded onto AC. Electron transfer from WEF to α-FeOOH was facilitated with AC as electron shuttles, thereby boosting Fe(III) reduction in the α-FeOOH. The generated Fe(II) reduced Cr(VI) and the resultant Cr(III) subsequently precipitated with OH- and Fe(III) to form Cr(OH)3 and (CrχFe1-χ)(OH)3. Therefore, the WEF-FeOOH@AC column exhibited a much lower Cr(VI) migration rate of 0.0018 cm PV-1 in comparison with 0.0037 cm PV-1 of the FeOOH@AC column, equal to 104 % higher Cr(VI) elimination capacity and 90 % longer column service life-span. Additionally, under different Cr(VI) loadings by varying either seepage velocities or influent Cr(VI) concentrations, the WEF-FeOOH@AC column maintained 1.0-1.5 folds higher Cr(VI) elimination and 0.9-1.4 folds longer longevity than those of the FeOOH@AC column owing to the interaction between FeOOH@AC and WEF. Our research demonstrated that WEF-FeOOH@AC was a potential method to promote Cr(VI) elimination from water and offer an effective strategy to facilitate Fe(III)/Fe(II) cycle in iron oxides.
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Affiliation(s)
- Bing Li
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Weiquan Li
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Qian Zuo
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Weizhao Yin
- School of Environment, Jinan University, Guangzhou, 510632, China
| | - Ping Li
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Jinhua Wu
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China; The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou, 510006, China; The Key Laboratory of Environmental Protection and Eco-Remediation of Guangdong Regular Higher Education Institutions, Guangzhou, 510006, China; Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, Guangzhou, 510006, China.
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da Silva EP, Fragal VH, Fragal EH, Sequinel T, Gorup LF, Silva R, Muniz EC. Sustainable energy and waste management: How to transform plastic waste into carbon nanostructures for electrochemical supercapacitors. WASTE MANAGEMENT (NEW YORK, N.Y.) 2023; 171:71-85. [PMID: 37651944 DOI: 10.1016/j.wasman.2023.08.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 07/23/2023] [Accepted: 08/23/2023] [Indexed: 09/02/2023]
Abstract
Plastic waste consumption increases exponentially every year, mainly in the last three years due to the COVID-19 pandemic. The rapid growth of plastic products has exceeded the world's capacity to deal with this type of trash. Thus, it has become a substantial environmental concern in modern society. Another dire concern is the improper disposal of used supercapacitors, leading to serious environmental impacts. Consequently, critical action to tackle this issue is to transform trash into high-valued materials, such as carbon nanomaterial supercapacitors. Considering several methodologies of recycling, pyrolysis stands out due to its simplicity and easy handling of mixed plastic waste to produce carbonaceous materials with different dimensions (0, 1, 2, and 3D). Thus, from this technology, it is possible to create new opportunities for using plastic waste and other types of waste to produce cheaper carbon-based materials for supercapacitors. This review aims to provide readers with a sustainability-driven view regarding the reutilization of plastic trash, discusses the environmental consequences of not doing so, and shows plastic waste solutions. Despite the broad scope of the topic, this review focuses on identifying the currently studied strategies to convert plastic waste into carbon-based electrodes, using less expensive and more efficient competitive protocols, besides emphasizing the diverse types (0, 1, 2, and 3D) of nanostructures. This review also proposes promising options for a sustainable cycle of plastic waste and supercapacitor.
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Affiliation(s)
- Elisangela Pacheco da Silva
- Department of Chemistry, UEM - State University of Maringa Avenida Colombo 5790, CEP, 87020-900, Paraná, Maringá, Brazil
| | - Vanessa Hafemann Fragal
- Department of Chemistry, UEM - State University of Maringa Avenida Colombo 5790, CEP, 87020-900, Paraná, Maringá, Brazil
| | - Elizângela Hafemann Fragal
- Department of Chemistry, UEM - State University of Maringa Avenida Colombo 5790, CEP, 87020-900, Paraná, Maringá, Brazil
| | - Thiago Sequinel
- Faculty of Exact Sciences and Technology (FACET), Federal University of Grande Dourados, Dourados, MS 79804-970, Brazil
| | - Luiz Fernando Gorup
- LIEC - Laboratory Interdisciplinar de Eletroquímica e Cerâmica, Departament of Chemistry, UFSCar-Federal, University of São Carlos, Rod. Washington Luis km 235, CP 676, São Carlos, SP 13565-905, Brazil; Institute of Chemistry, Federal University of Alfenas, CEP 37130-001, Alfenas, MG, Brazil
| | - Rafael Silva
- Department of Chemistry, UEM - State University of Maringa Avenida Colombo 5790, CEP, 87020-900, Paraná, Maringá, Brazil
| | - Edvani C Muniz
- Department of Chemistry, UEM - State University of Maringa Avenida Colombo 5790, CEP, 87020-900, Paraná, Maringá, Brazil; Department of Material Science, Federal University of Technology - Parana, Estr. dos Pioneiros, 3131, CEP 86036-370, Jardim Morumbi, Londrina, Parana, Brazil; Department of Chemistry, Federal University of Piauí, Campus Petrônio Portella, Ininga, Teresina, CEP 64049-550, Piauí, Brazil.
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Khedulkar AP, Pandit B, Dang VD, Doong RA. Agricultural waste to real worth biochar as a sustainable material for supercapacitor. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 869:161441. [PMID: 36638993 DOI: 10.1016/j.scitotenv.2023.161441] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 12/30/2022] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
Biochar made from agricultural waste is gaining more attention in energy field due to its sustainability, low cost, apart from having high supercapacitance performance. Also, it has a wide range of environmental applications, including wastewater treatment, upgrading soil fertility, contaminant immobilization, and in situ carbon sequestration. The existing thermo-chemical methodologies for converting agricultural waste into a sustainable material i.e. biochar and the role of activation agents in enhancing the performance of these materials were critically analyzed and discussed. An overview of recent trends in agricultural waste-derived biochar for supercapacitor electrodes is highlighted in this review that emphasizes green circular economy for encouraging net-zero utility of agriculture waste biomass. The roles of various newly prepared "green" electrolytes in reducing the negative consequences of supercapacitor is also reviewed. The trashing of agricultural waste and the depletion of energy supplies has become a global concern, hurting the world's ecosystem and economy through pollution and a fuel crisis and hence the concept of a green circular economic model is also highlighted.
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Affiliation(s)
- Akhil Pradiprao Khedulkar
- Department of Biomedical Engineering and Environmental Science, National Tsing Hua University, Hsinchu 30 013, Taiwan
| | - Bidhan Pandit
- Department of Materials Science and Engineering and Chemical Engineering, Universidad Carlos III de Madrid, Avenida de la Universidad 30, Leganés, 28911 Madrid, Spain
| | - Van Dien Dang
- Faculty of Biology - Environment, Ho Chi Minh City University of Food Industry, Ho Chi Minh 700000, Viet Nam
| | - Ruey-An Doong
- Institute of Analytical and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan.
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Fito J, Tibebu S, Nkambule TTI. Optimization of Cr (VI) removal from aqueous solution with activated carbon derived from Eichhornia crassipes under response surface methodology. BMC Chem 2023; 17:4. [PMID: 36782231 PMCID: PMC9926672 DOI: 10.1186/s13065-023-00913-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 02/03/2023] [Indexed: 02/15/2023] Open
Abstract
Tannery industries' effluent contains a high concentration of Cr (VI) which has the potential to affect the environment and public health. Therefore, this study aimed to investigate the optimization of Cr (VI) adsorption by activated carbon (AC) derived from Eichhornia crassipes from an aqueous solution. The adsorbent was activated with dilute sulfuric acid followed by thermal activation. AC was characterized using proximate analysis, SEM, FTIR, X-ray diffraction, and the BET method. The Cr (VI) removal optimization process was performed using a central composite design under the response surface methodology. The proximate analysis showed that the moisture content, volatile matter, ash content, and fixed carbon of the activated carbon were 5.6%, 18.2%, 14.4%, and 61.8% respectively. The surface areas of the Eichhornia crassipes before activation, after activation, and after adsorption were 60.6 g/m2, 794.2 g/m2, and 412.6 g/m2 respectively. A highly porous structure with heterogeneous and irregular shapes was observed in the SEM micrograph. In the FTIR analysis, different peaks are indicated with various functional groups. The intensity of XRD peaks decreased as 2 theta values increased, which indicates the presence of an amorphous carbon arrangement. The point of zero charge (pHpzc) of the activated carbon was found to be 5.20. A maximum Cr (VI) removal of 98.4% was achieved at pH 5, contact time 90 min, adsorbent dose 2 g, and initial Cr (VI) concentration of 2.25 mg/L. Statistically significant interactions (P < 0.05) were observed between the initial Cr (VI) concentration and adsorbent dose as well as the initial Cr (VI) concentration and contact time. Langmuir adsorption isotherm fitted the experimental data best, with an R2 value of 0.99. The separation constant (RL) indicates that the adsorption process is favorable. The kinetic experimental data were best fitted with the pseudo-second-order model with an R2 value of 0.99 whereas the adsorption rate is controlled by intraparticle and extragranular diffusion processes. Generally, the AC has the potential to be a strong adsorbent candidate for wastewater treatment at the industrial level.
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Affiliation(s)
- Jemal Fito
- grid.412801.e0000 0004 0610 3238Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, Florida Science Campus, University of South Africa, Johannesburg, 1710 South Africa
| | - Solomon Tibebu
- Department of Environmental Engineering, College of Biological and Chemical Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia.
| | - Thabo T. I. Nkambule
- grid.412801.e0000 0004 0610 3238Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering and Technology, Florida Science Campus, University of South Africa, Johannesburg, 1710 South Africa
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Liu Y, Shan H, Pang Y, Zhan H, Zeng C. Iron modified chitosan/coconut shell activated carbon composite beads for Cr(VI) removal from aqueous solution. Int J Biol Macromol 2022; 224:156-169. [DOI: 10.1016/j.ijbiomac.2022.10.112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 10/03/2022] [Accepted: 10/12/2022] [Indexed: 11/05/2022]
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Mao S, Shen T, Zhao Q, Han T, Ding F, Jin X, Gao M. Selective capture of silver ions from aqueous solution by series of azole derivatives-functionalized silica nanosheets. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2022.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Chu S, Feng X, Liu C, Wu H, Liu X. Advances in Chelating Resins for Adsorption of Heavy Metal Ions. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01353] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Shiyu Chu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
- Sichuan Province Engineering Technology Research Center of Novel CN Polymeric Materials, Chengdu 611731, China
| | - Xiaofang Feng
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
- Sichuan Province Engineering Technology Research Center of Novel CN Polymeric Materials, Chengdu 611731, China
| | - Chenchen Liu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
- Sichuan Province Engineering Technology Research Center of Novel CN Polymeric Materials, Chengdu 611731, China
| | - Hanrong Wu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
- Sichuan Province Engineering Technology Research Center of Novel CN Polymeric Materials, Chengdu 611731, China
| | - Xiaobo Liu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
- Sichuan Province Engineering Technology Research Center of Novel CN Polymeric Materials, Chengdu 611731, China
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Development and Characterization of Bioadsorbents Derived from Different Agricultural Wastes for Water Reclamation: A Review. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12052740] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The presence of dangerous pollutants in different water sources has restricted the availability of this natural resource. Thus, the development of new low-cost and environmentally-friendly technologies is currently required to ensure access to clean water. Various approaches to the recovery of contaminated water have been considered, including the generation of biomaterials with adsorption capacity for dangerous compounds. Research on bioadsorbents has boomed in recent years, as they constitute one of the most sustainable options for water treatment thanks to their abundance and high cellulose content. Thanks to the vast amount of information published to date, the present review addresses the current status of different biosorbents and the principal processes and characterization methods involved, focusing on base biomaterials such as fruits and vegetables, grains and seeds, and herbage and forage. In comparison to other reviews, this work reports more than 60 adsorbents obtained from agricultural wastes. The removal efficiencies and/or maximum adsorption capacities for heavy metals, industrial contaminants, nutrients and pharmaceuticals are presented as well. In addition to the valuable information provided in the literature investigation, challenges and perspectives concerning the implementation of bioadsorbents are discussed in order to comprehensively guide selection of the most suitable biomaterials according to the target contaminant and the available biowastes.
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Indium sulfide deposited MIL-53(Fe) microrods: Efficient visible-light-driven photocatalytic reduction of hexavalent chromium. J Colloid Interface Sci 2022; 606:1299-1310. [PMID: 34492467 DOI: 10.1016/j.jcis.2021.08.111] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 08/08/2021] [Accepted: 08/16/2021] [Indexed: 12/30/2022]
Abstract
The ecosystems and human health were seriously threatened by hexavalent chromium (Cr(VI)) in wastewater. In this article, using the idea of the highly matched energy band structure between indium sulfide (In2S3) and MIL-53(Fe), a Type-II heterojunction has been constructed by loading In2S3 on MIL-53(Fe) microrod to overcome the fault like high recombination rates of photogenerated electron-holes of In2S3. The composite with 20:1 mass ratio of In2S3 to MIL-53(Fe) (IM-2) was adopted as an optimal sample for efficient photocatalytic Cr(VI) reduction under visible light. Various characterization techniques were used to verify the characteristics of composites and delved into the structure-effect relationship between this heterojunction and its activity. Results showed that the reaction rate constants of the photoreduction process over IM-2 was ~ 4 and 26 times higher than those of pure In2S3 and MIL-53(Fe), respectively, and the catalyst could maintain superior removal efficiency (88.6%) and steady crystal structure after four cycles. First-principles calculations further illustrated that the heterostructure formed between In2S3 and MIL-53(Fe) could effectively accelerate the separation of photogenerated electrons and holes, thus improving the photocatalytic reduction performance. Moreover, the active species analyses revealed that the superoxide radicals and electrons were mainly involved in the reduction of Cr(VI).
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12
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Lam VT, Ngo TCQ, Bach LG. Facile Fabrication of Novel NiFe 2O 4@Carbon Composites for Enhanced Adsorption of Emergent Antibiotics. MATERIALS 2021; 14:ma14216710. [PMID: 34772240 PMCID: PMC8587843 DOI: 10.3390/ma14216710] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/31/2021] [Accepted: 08/02/2021] [Indexed: 11/26/2022]
Abstract
Water purification is becoming one of the most pertinent environmental issues throughout the world. Among common types of water pollution involving heavy metals, pharmaceutical drugs, textile dyes, personal care products, and other persistent organic pollutants, the pollution of antibiotic drugs is increasingly emerging due to their adverse effects on microorganisms, aquatic animals, and human health. Therefore, the treatment of such contaminants is very necessary to reduce the concentration of antibiotic pollutants to permissible levels prior to discharge. Herein, we report the use of NiFe2O4@C composites from a bimetallic-based metal-organic framework Ni-MIL-88B(Fe) for removal of ciprofloxacin (CFX) and tetracycline (TCC). The effect of production temperatures (600–900 °C), solution pH (2–10), NiFe2O4@C dose (0.05–0.2 g/L), concentration of antibiotics (10–60 mg/L), and uptake time (0–480 min) was investigated systematically. Response surface methodology and central composite design were applied for quadratic models to discover optimum conditions of antibiotic adsorption. With high coefficients of determination (R2 = 0.9640–0.9713), the proposed models were significant statistically. Under proposed optimum conditions, the adsorption capacity for CFX and TCC were found at 256.244, and 105.38 mg/g, respectively. Recyclability study was employed and found that NiFe2O4@C-900 could be reused for up to three cycles, offering the potential of this composite as a good adsorbent for removal of emergent antibiotics.
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Affiliation(s)
- Van Tan Lam
- Institute of Environmental Technology and Sustainable Development, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam;
- Department of Science and Technology, People’s Committee in Ben Tre, Ben Tre City 86000, Vietnam
- Correspondence: (V.T.L.); (L.G.B.)
| | - Thi Cam Quyen Ngo
- Institute of Environmental Technology and Sustainable Development, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam;
- Faculty of Environment and Food Technology, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
| | - Long Giang Bach
- Institute of Environmental Technology and Sustainable Development, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam;
- Faculty of Environment and Food Technology, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
- Correspondence: (V.T.L.); (L.G.B.)
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Fang Y, Yang K, Zhang Y, Peng C, Robledo-Cabrera A, López-Valdivieso A. A new insight into the restriction of Cr(VI) removal performance of activated carbon under neutral pH condition. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 84:2304-2317. [PMID: 34810313 DOI: 10.2166/wst.2021.449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Activated carbon has been widely used to remove hazardous Cr(VI); however, the impact of Cr2O3 precipitate on gradually declining removal ability as pH increases has received little attention. Herein, to investigate the effect of Cr2O3, SEM-EDX (scanning electron microscope-energy dispersive X-ray analysis) coupling elements mapping of chromium-loaded powdered activated carbon (PAC) revealed that a chromium layer was formed on the PAC exterior after being treated with Cr(VI) at pH 7. XPS (X-ray photoelectron spectroscopy) study confirmed that 69.93% and 39.91% Cr2O3 precipitated on the PAC surface at pH 7 and pH 3, respectively, corresponding to 17.77 mg/g and 20 mg/g removal capacity. Exhausted PAC had a removal efficiency of 92.43% after Cr2O3 being washed by H2SO4 solution, which was much higher than the removal efficiency of 51.27 % after NaOH washing. This further verified that the intrinsically developed Cr2O3 precipitate on PAC under neutral conditions limited the durability of PAC as an adsorbent. Consecutive elution assessments confirmed that adsorption and reduction ability both declined as pH increased. Raman spectroscopy and C 1s spectra of materials demonstrated two distinct Cr(VI) removal mechanisms under pH 3 and pH 7. In conclusion, the exhausted AC after Cr(VI) adsorption can be rejuvenated after the surface coated Cr2O3 is washed by the acid solution, which can expand the longevity of AC and recover Cr(III).
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Affiliation(s)
- Yi Fang
- Instituto de metalurgia, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550 C.P. 78210, San Luis Potosí, Mexico; Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, Zhaoqing University, Zhaoqing 526061, China E-mail:
| | - Ke Yang
- Instituto de metalurgia, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550 C.P. 78210, San Luis Potosí, Mexico
| | - Yipeng Zhang
- Instituto de metalurgia, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550 C.P. 78210, San Luis Potosí, Mexico
| | - Changsheng Peng
- Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, Zhaoqing University, Zhaoqing 526061, China E-mail: ; The Key Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China
| | - Aurora Robledo-Cabrera
- Instituto de metalurgia, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550 C.P. 78210, San Luis Potosí, Mexico
| | - Alejandro López-Valdivieso
- Instituto de metalurgia, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550 C.P. 78210, San Luis Potosí, Mexico
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Zeng Q, Sun W, Zhong H, He Z. Efficient and selective removal of Ag + as nano silver particles by the composite of SiO 2 supported nano ferrous oxalate. ENVIRONMENTAL RESEARCH 2021; 202:111696. [PMID: 34331922 DOI: 10.1016/j.envres.2021.111696] [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: 02/17/2021] [Revised: 06/23/2021] [Accepted: 07/12/2021] [Indexed: 06/13/2023]
Abstract
Developing novel environmentally materials with high capacity and selectivity for Ag+ adsorption by transforming Ag+ to nano silver is important for the recovery of precious metals from Ag-containing solution. The present study systematically studied the Ag + adsorption process from solution by the composite of SiO2 supported nano ferrous oxalate (SNFO) synthesized from biotite-containing minerals. Batch experiments, dynamics and isothermal adsorption fitting results showed that Ag+ removal behaviours were in accordance with the pseudo-first-order kinetic model and Langmuir model, and the maximal Ag+ removal capacity was 223.68 mg/g. Thermodynamic fitting results suggested that Ag + removal by the composite was a spontaneous and endothermic reaction process. XRD and TEM revealed that the reaction products were consisted of SiO2 and nano silver particles, and FTIR and XPS results indicated that the Ag+ removal mechanisms were attributed to the synergistic reduction interaction between ferrous and the anions of oxalate. Meanwhile, the composite possesses high selectivity for Ag+ removal even at low Ag+ concentration. Moreover, the size of nano silver particles could be adjusted by different pH values. All above results demonstrated that the composite was an ideal material for selective recovery of Ag+ from Ag+ containing effluents in the form of nano silver.
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Affiliation(s)
- Qiang Zeng
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Wei Sun
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Hui Zhong
- School of Life Sciences, Central South University, Changsha, 410083, China.
| | - Zhiguo He
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Faculty of Materials Metallurgy & Chemistry, Jiangxi University of Science & Technology, Ganzhou, Jiangxi, 341000, China.
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16
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Liu Y, Pei R, Lv Y, Lin C, Huang J, Liu M. Removal behavior and mechanism of silver from low concentration wastewater using cellulose aerogel modified by thiosemicarbazide. J Appl Polym Sci 2021. [DOI: 10.1002/app.51226] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Yifan Liu
- College of Chemical Engineering Fuzhou University Fuzhou China
- Fujian Provincial Key Laboratory of Ecology‐Toxicological Effects and Control for Emerging Contaminants College of Environmental and Biological Engineering, Putian University Putian China
- Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology College of Environment & Resources, Fuzhou University Fuzhou China
| | - Ruihan Pei
- Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology College of Environment & Resources, Fuzhou University Fuzhou China
| | - Yuancai Lv
- Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology College of Environment & Resources, Fuzhou University Fuzhou China
| | - Chunxiang Lin
- Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology College of Environment & Resources, Fuzhou University Fuzhou China
| | - Jianhui Huang
- Fujian Provincial Key Laboratory of Ecology‐Toxicological Effects and Control for Emerging Contaminants College of Environmental and Biological Engineering, Putian University Putian China
| | - Minghua Liu
- College of Chemical Engineering Fuzhou University Fuzhou China
- Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology College of Environment & Resources, Fuzhou University Fuzhou China
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Luan L, Tang B, Liu Y, Wang A, Zhang B, Xu W, Niu Y. Selective capture of Hg(II) and Ag(I) from water by sulfur-functionalized polyamidoamine dendrimer/magnetic Fe3O4 hybrid materials. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117902] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Sangkarak S, Phetrak A, Kittipongvises S, Kitkaew D, Phihusut D, Lohwacharin J. Adsorptive performance of activated carbon reused from household drinking water filter for hexavalent chromium-contaminated water. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 272:111085. [PMID: 32854889 DOI: 10.1016/j.jenvman.2020.111085] [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: 03/27/2020] [Revised: 06/30/2020] [Accepted: 07/12/2020] [Indexed: 06/11/2023]
Abstract
Powdered activated carbon blocks (PACBs) are waste products obtained from household drinking water purification systems. In this study, we demonstrate that they can be used as adsorbents for the cost-effective and environmentally benign removal of hexavalent chromium (Cr(VI)) from contaminated-water and rinse electroplating wastewater. To evaluate Cr(VI) sorption onto the PACB, studies on equilibrium, kinetics, and thermodynamics were performed using batch mode experiments. The experimental results indicated that Cr(VI) ions were efficiently adsorbed under acidic conditions (i.e., at initial pH below 3) and low initial Cr(VI) concentrations. The adsorptive behaviors of the PACB for Cr(VI) were well explained by the Langmuir isotherm, as well as pseudo-second-order kinetic models, suggesting that a Cr(VI) monolayer was adsorbed onto the PACB surface via chemisorption. The maximum adsorption capacity of Cr(VI) onto the PACB was determined to be 6.207 mg/g. The results of thermodynamic studies revealed that the adsorption process of Cr(VI) onto PACB was endothermic and non-spontaneous. Additionally, analysis of the PACB after Cr(VI) adsorption at an initial pH of 2 using scanning electron microscopy, energy dispersive spectrometry, Fourier transform infrared spectroscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS) revealed that the interaction between the surface oxygenic functional groups on the PACB and Cr(VI) was primarily responsible for Cr(VI) sorption via surface complexation and electrostatic interactions. Based on the result of XPS analysis, the presence of trivalent chromium on the PACB surfaces indicated that some synergistic redox reactions involving Cr(VI) could have occurred during the sorption process. Although a commercially available powdered activated carbon outperformed the PACB adsorbent with respect to Cr(VI) removal from wastewater, complete Cr(VI) adsorption could be achieved using relatively large quantities of the PACB. These findings indicate that the PACB adsorbent could be used as a cheap and efficient material for the removal of Cr(VI) from wastewater.
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Affiliation(s)
- Sirirat Sangkarak
- Department of Social and Environmental Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Athit Phetrak
- Department of Social and Environmental Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
| | | | - Duangta Kitkaew
- Department of Sanitary Engineering, Faculty of Public Health, Mahidol University, Bangkok, Thailand; Center of Excellence on Environmental Health and Toxicology (EHT), Mahidol University, Bangkok, Thailand
| | - Doungkamon Phihusut
- Environmental Research Institute, Chulalongkorn University, Bangkok, Thailand
| | - Jenyuk Lohwacharin
- Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand
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Talooki EF, Ghorbani M, Rahimnejad M, Lashkenari MS. Evaluation of a visible light-responsive polyaniline nanofiber˗cadmium sulfide quantum dots photocathode for simultaneous hexavalent chromium reduction and electricity generation in photo-microbial fuel cell. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114469] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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20
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Sadeghi MH, Tofighy MA, Mohammadi T. One-dimensional graphene for efficient aqueous heavy metal adsorption: Rapid removal of arsenic and mercury ions by graphene oxide nanoribbons (GONRs). CHEMOSPHERE 2020; 253:126647. [PMID: 32276119 DOI: 10.1016/j.chemosphere.2020.126647] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 03/25/2020] [Accepted: 03/29/2020] [Indexed: 06/11/2023]
Abstract
There is a knowledge gap for the application of one-dimensional graphene in the adsorption process. Our hypothesis was based on the fact that graphene oxide nanoribbons (GONRs) as one-dimensional graphene with more desired edges and specific surface area than other carbonaceous nanomaterials have more oxygen containing functional groups (active sites) on their edges and basal planes and therefore are more capable in adsorption of pollutants. In this regard, we synthesized GONRs by unzipping of multi-walled carbon nanotubes (MWCNTs) and investigated the adsorption behavior of GONRs by ultrasonic-assisted adsorptive removal of As(V) and Hg(II) ions from aqueous solution. The obtained results showed that As(V) ions are more favorably adsorbed onto the GONRs than Hg(II) ions and with increasing initial As(V) and Hg(II) ions concentration to 300 ppm, the equilibrium adsorption uptake of the synthesized GONRs increases to 155.61 and 33.02 mg/g for As(V) and Hg(II) ions, respectively through a rapid separation process in just 12 min. Also, three kinetic models and Freundlich and Langmuir adsorption isotherms were applied to evaluate the obtained experimental results. Our findings highlight the potential application of GONRs as one-dimensional graphene adsorbent with more desired edges than MWCNTs and graphene oxide (GO) and high adsorption capacity for selective removal of heavy metals.
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Affiliation(s)
- Mohammad Hadi Sadeghi
- Center of Excellence for Membrane Science and Technology, Department of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran
| | - Maryam Ahmadzadeh Tofighy
- Center of Excellence for Membrane Science and Technology, Department of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran
| | - Toraj Mohammadi
- Center of Excellence for Membrane Science and Technology, Department of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran.
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Eleryan A, El Nemr A, Idris AM, Alghamdi MM, El-Zahhar AA, Said TO, Sahlabji T. Feasible and eco-friendly removal of hexavalent chromium toxicant from aqueous solutions using chemically modified sugarcane bagasse cellulose. TOXIN REV 2020. [DOI: 10.1080/15569543.2020.1790606] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Ahmed Eleryan
- Division of Environmental, Department of Marine Pollution, National Institute of Oceanography and Fisheries, Alexandria, Egypt
| | - Ahmed El Nemr
- Division of Environmental, Department of Marine Pollution, National Institute of Oceanography and Fisheries, Alexandria, Egypt
| | - Abubakr M. Idris
- Environmental Monitoring, Assessment and Treatment (EMAT) Research Group, Department of Chemistry, College of Science, King Khalid University, Abha, Saudi Arabia
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha, Saudi Arabia
| | - Majed M. Alghamdi
- Environmental Monitoring, Assessment and Treatment (EMAT) Research Group, Department of Chemistry, College of Science, King Khalid University, Abha, Saudi Arabia
| | - Adel A. El-Zahhar
- Environmental Monitoring, Assessment and Treatment (EMAT) Research Group, Department of Chemistry, College of Science, King Khalid University, Abha, Saudi Arabia
- Department of Nuclear Chemistry, AEA, Cairo, Egypt
| | - Tarek O. Said
- Division of Environmental, Department of Marine Pollution, National Institute of Oceanography and Fisheries, Alexandria, Egypt
- Environmental Monitoring, Assessment and Treatment (EMAT) Research Group, Department of Chemistry, College of Science, King Khalid University, Abha, Saudi Arabia
| | - Taher Sahlabji
- Environmental Monitoring, Assessment and Treatment (EMAT) Research Group, Department of Chemistry, College of Science, King Khalid University, Abha, Saudi Arabia
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Andrade Neto JC, Pereira GJ, Morandim‐Giannetti A. Lignocellulosic derivative and chitosan bioadsorbent: Synthesis, characterization, and performance in chromium adsorption. J Appl Polym Sci 2020. [DOI: 10.1002/app.49208] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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