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Huang Y, Wang M, Liu B, Su S, Sun H, Yang S, Han G. Highly selective ion precipitation flotation for ternary Co-Zn-Mn separation: Stepwise chelation capture of Co and Zn from simulated zinc hydrometallurgy wastewater. CHEMOSPHERE 2024; 353:141533. [PMID: 38403126 DOI: 10.1016/j.chemosphere.2024.141533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 02/21/2024] [Accepted: 02/22/2024] [Indexed: 02/27/2024]
Abstract
Ion precipitation flotation technology was demonstrated to be an efficient method for the separation of valuable metals from low-concentration solution. However, the selective separation of three metals from mixing solution is a great challenge, and highly selective reagents are the key to polymetallic separation. In this work, stepwise separation of Co and Zn from the simulated zinc hydrometallurgy wastewater containing ternary Co-Zn-Mn metals by ion precipitation flotation process was proposed. It's demonstrated that organic reagents of 1-nitroso-2-naphthol (NN) and sodium dimethyldithiocarbamate (SDDC) had excellent selectivity for the capture of Co and Zn to form respective precipitate from wastewaters via the chelation reactions. After precipitation, dodecylpyridinium chloride (DPC) and tetradecyltrimethylammonium bromide (TTAB) were chosen as surfactants for the separation of Co and Zn sediments from the solution via the flotation process. The effects of solution pH, molar ratio, reaction temperature, and reaction time on the selective precipitation efficiencies of Co and Zn as well as the effects of surfactant dosage and flotation gas velocity on the flotation separation efficiencies were systematically investigated. It's demonstrated that the comprehensive recovery rates of Co, Mn, and Zn reach 98%, 90%, and 99%, respectively. After separation, oxidation calcination of the foam products was conducted to prepare high-purity Co3O4 and ZnO nanoparticles in which the organic matters were burnt out with gas emissions. The stepwise chelation capture mechanisms of Co and Zn by highly selective precipitation reagents were minutely discussed. It's demonstrated that the proposed selective stepwise precipitation and flotation method is suitable for recovery of critical metal ions from low-concentration polymetallic wastewaters.
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Affiliation(s)
- Yanfang Huang
- Henan Critical Metals Laboratory, Zhengzhou University, Zhengzhou, 450001, Henan, PR China; School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, Henan, PR China; Zhongyuan Critical Metals Laboratory, Zhengzhou, 450001, Henan, PR China
| | - Meimei Wang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, Henan, PR China
| | - Bingbing Liu
- Henan Critical Metals Laboratory, Zhengzhou University, Zhengzhou, 450001, Henan, PR China; School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, Henan, PR China; Zhongyuan Critical Metals Laboratory, Zhengzhou, 450001, Henan, PR China.
| | - Shengpeng Su
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, Henan, PR China
| | - Hu Sun
- Henan Critical Metals Laboratory, Zhengzhou University, Zhengzhou, 450001, Henan, PR China; School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, Henan, PR China; Zhongyuan Critical Metals Laboratory, Zhengzhou, 450001, Henan, PR China
| | - Shuzhen Yang
- Henan Critical Metals Laboratory, Zhengzhou University, Zhengzhou, 450001, Henan, PR China; School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, Henan, PR China; Zhongyuan Critical Metals Laboratory, Zhengzhou, 450001, Henan, PR China
| | - Guihong Han
- Henan Critical Metals Laboratory, Zhengzhou University, Zhengzhou, 450001, Henan, PR China; School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, Henan, PR China; Zhongyuan Critical Metals Laboratory, Zhengzhou, 450001, Henan, PR China.
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Ai S, Qin Y, Hong Y, Liu L, Yu W. Low-temperature aerobic carbonization and activation of cellulosic materials for Pb 2+ removal in water source. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 314:120215. [PMID: 36150617 DOI: 10.1016/j.envpol.2022.120215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 09/04/2022] [Accepted: 09/16/2022] [Indexed: 06/16/2023]
Abstract
Targeting the removal of Pb2+ in wastewater, cellulosic materials were carbonized in an aerobic environment and activated via ion exchange. The maximum adsorption capacity reached 243.5 mg/g on an MCC-derived adsorbent activated with sodium acetate. The modified porous properties improved the adsorption capacity. The capacity could be completely recovered five times through elution with EDTA. Because of the negative effects of Ni, Mg, and Ca elements, the adsorption capacities of activated carbonized natural materials were lower than that of pure cellulose. N2 adsorption measurement showed that the adsorbent had a large specific surface area as well as abundant micropores and 4-nm-sized mesopores. FTIR and surface potential results proved that carboxyl group was generated in the aerobic carbonization, and was deprotonated during ion exchange. This adsorbent consisted of C-C bonds as the building blocks and hydrophilic groups on the surface. XPS results demonstrated that the Pb 4f binding energies were reduced by 0.7-0.8 eV due to the interaction between Pb2+ and the activated adsorbent, indicating that the carboxylate groups bonded with Pb2+ through coordination interactions. Pseudo-second-order and Elovich kinetic models were well fitted with the adsorption processes on the pristine and activated carbonized adsorbents, indicative of chemisorption on heterogeneous surfaces. The Freundlich expression agreed well with the data measured, and the pristine and activated adsorbents had weak and strong affinities for Pb2+, respectively. The Pb2+ adsorption process was exothermic and spontaneous, and heat release determined the spontaneity. The adsorption capacity is attributed to the carboxylate groups and pores generated in the aerobic oxidation and ion exchange procedures.
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Affiliation(s)
- Shuo Ai
- College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, 545006, China.
| | - Yue Qin
- College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, 545006, China
| | - Yuxiang Hong
- College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, 545006, China
| | - Linghui Liu
- College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, 545006, China
| | - Wanguo Yu
- College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, 545006, China
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Dash B, Jena SK, Rath SS. Adsorption of Cr (III) and Cr (VI) ions on muscovite mica: Experimental and molecular modeling studies. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119116] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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4
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Sun Y, Gu Y, Zhang P. Adsorption properties and recognition mechanisms of a novel surface imprinted polymer for selective removal of Cu(II)-citrate complexes. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127735. [PMID: 34823959 DOI: 10.1016/j.jhazmat.2021.127735] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 10/19/2021] [Accepted: 11/06/2021] [Indexed: 06/13/2023]
Abstract
Cu(II)-citrate (Cu(II)-CA) complex, as one of the components in plating solutions, increases the difficulty of Cu(II) treatment due to its stable structure and high mobility. In this work, a novel surface imprinted polymer (Cu-CA-SIP) for selective removal of Cu(II)-CA complex from aqueous solution is synthesized by using polyethyleneimine (PEI) grafted onto chloromethylated polystyrene (CMP) microspheres. Cu(II)-CA anions are successfully imprinted with the molar ration of 1:1 by Cu-CA-SIP at initial pH 4.0. Nearly 100% removal rate can be achieved even at low Cu(II)-CA concentration (0.5 mmol/L), and the maximum Cu(II) uptake of Cu-CA-SIP reaches 1.38 mmol/g at 303 K. In Cu(II)/Fe(III)-CA, Cu(II)/Ni(II)-CA, Cu(II)/Zn(II)-CA and Cu(II)/Cd(II)-CA systems, the relative selectivity coefficients of Cu-CA-SIP for Cu(II)-CA are 9.66, 2.32, 1.40 and 44.55, respectively. Moreover, Cu-CA-SIP can be retrieved with negligible loss of adsorption capacity after six times of reuse. The Cu-CA-SIP column can effectively treat the actual electroplating wastewater within 114 BV, and can still reach 104 BV after three dynamic cycles. Therefore, an innovative imprinted material is designed for the first time on the basis of coordination-configuration recognition mechanism for the treatment of electroplating wastewater, providing a new insight in developing surface imprinted polymer in environmental remediation.
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Affiliation(s)
- Yue Sun
- Department of Municipal Engineering, School of Civil Engineering, Southeast University, Nanjing 210096, China.
| | - Yingpeng Gu
- Department of Municipal Engineering, School of Civil Engineering, Southeast University, Nanjing 210096, China
| | - Pengyu Zhang
- Department of Municipal Engineering, School of Civil Engineering, Southeast University, Nanjing 210096, China
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Oladoye PO. Natural, low-cost adsorbents for toxic Pb(II) ion sequestration from (waste)water: A state-of-the-art review. CHEMOSPHERE 2022; 287:132130. [PMID: 34517237 DOI: 10.1016/j.chemosphere.2021.132130] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 08/28/2021] [Accepted: 08/31/2021] [Indexed: 06/13/2023]
Abstract
Pb(II) ions is an inorganic pollutant that is present in the environment. Its presence affects both human health and ecosystem. Economically, amongst many wastewater treatment approaches, adsorption is both cheap and environmentally friendly for removing Pb(II) ion from contaminated water. In this state of the art review, about 227 research and review based publications on adsorption-based studies between 1989 and 2021, which have used various materials as adsorbents of Pb (II) ions, were selected and reviewed for more evaluation. A number of adsorbents which have been reported in these literatures for the adsorption of Pb(II) ion are agrobased, modified agrobased, clay minerals, modified/nanocomposite clay minerals, silica-based, zeolite-based and chitosan-based adsorbents, respectively. The adsorption potential of the adsorbents is exhibited under optimum experimental conditions. The unmodified and modified agro based adsorbents were shown to exhibit the greatest Pb(II) adsorption capacity, with great potential for further exploration, compared to the others afore-listed. The effects of operating parameters such as pH, initial metal ion concentration, adsorbent dose and reaction time are discussed. Furthermore, in order to comprehend the nature of adsorption process between the adsorbent and contaminant (Pb(II)), thermodynamic analyses of adsorption systems are intensively described. All these discussions revealed the applicability of adsorption process for toxic Pb(II) ions removal with respect to wastewater treatment techniques. The review concludes by commenting on the various adsorbents' adsorption capacity and proposes some studies that should also be considered in future works.
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Affiliation(s)
- Peter Olusakin Oladoye
- Department of Chemistry and Biochemistry, Florida International University, 11200 SW 8th St, Miami, FL, 33199, USA; Analytical/Environmental Chemistry Unit, Department of Pure and Applied Chemistry, Ladoke Akintola University of Technology, P.M.B, 4000, Ogbomoso, Nigeria.
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Qi K, Lu N, Zhang S, Wang W, Wang Z, Guan J. Uptake of Pb(II) onto microplastic-associated biofilms in freshwater: Adsorption and combined toxicity in comparison to natural solid substrates. JOURNAL OF HAZARDOUS MATERIALS 2021; 411:125115. [PMID: 33486230 DOI: 10.1016/j.jhazmat.2021.125115] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/28/2020] [Accepted: 01/11/2021] [Indexed: 05/22/2023]
Abstract
In the present study, microplastic-associated biofilms were cultivated in an urban lake and a reservoir using virgin expanded polystyrene (PS). The uptake of Pb(II) onto both natural (suspended particles and surficial sediment) and anthropogenic (virgin microplastics and microplastic-associated biofilms) solid substrates was investigated and compared as a function of contact time, pH, and ionic strength in batch adsorption experiments. The adsorption isotherms revealed that biofilms enhanced the adsorption capacity of Pb(II) onto microplastics; however, natural substrates still exhibited a higher capacity. Ionic strength and pH significantly influenced the adsorption of Pb(II) onto all of the solid substrates. Under neutral conditions, competitive adsorption of Pb(II) was observed between anthropogenic solid substrates and natural substrates, which may further alter the distribution of Pb(II) among these solid substrates. The combined toxicity tests of Pb(II) and each solid substrate were carried out using Daphnia magna, the results indicated biofilm enhanced the combined toxicity of Pb(II) and microplastics. Therefore, biofilms not only intensified the vector role of microplastics in the migration of heavy metals in freshwater, but also enhanced their combined toxicity, which may have further potential ecological risks to freshwater ecosystems.
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Affiliation(s)
- Kun Qi
- School of Environment, Northeast Normal University, Changchun 130117, PR China
| | - Nan Lu
- School of Environment, Northeast Normal University, Changchun 130117, PR China
| | - Shunqing Zhang
- School of Environment, Northeast Normal University, Changchun 130117, PR China
| | - Weiwei Wang
- School of Environment, Northeast Normal University, Changchun 130117, PR China
| | - Zirui Wang
- School of Environment, Northeast Normal University, Changchun 130117, PR China
| | - Jiunian Guan
- School of Environment, Northeast Normal University, Changchun 130117, PR China.
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Huang C, Huang Y, Xie T, Yu W, Ai S. Adsorption Mechanism of Bentonite with Dispersed Chitosan for Cadmium Ions. Chem Eng Technol 2021. [DOI: 10.1002/ceat.202000505] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Chengdu Huang
- Guangxi University of Science and Technology Department of Biological and Chemical Engineering 545006 Liuzhou City China
| | - Yongchun Huang
- Guangxi University of Science and Technology Department of Biological and Chemical Engineering 545006 Liuzhou City China
| | - Tenghui Xie
- Guangxi University of Science and Technology Department of Biological and Chemical Engineering 545006 Liuzhou City China
| | - Wanguo Yu
- Guangxi University of Science and Technology Department of Biological and Chemical Engineering 545006 Liuzhou City China
| | - Shuo Ai
- Guangxi University of Science and Technology Department of Biological and Chemical Engineering 545006 Liuzhou City China
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Ai S, Huang Y, Xie T, Zhang X, Huang C. Fabrication of composites with ultra-low chitosan loadings and the adsorption mechanism for lead ions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:37927-37937. [PMID: 32613513 DOI: 10.1007/s11356-020-09906-7] [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: 04/16/2020] [Accepted: 06/26/2020] [Indexed: 06/11/2023]
Abstract
Through a facile impregnation-precipitation strategy, chitosan was dispersed on bentonite to prepare an organic/inorganic hybrid composite for Pb2+ adsorption. The strong promotion effect of a small amount of highly dispersed chitosan on the Pb2+ adsorption capacity of clay minerals was unveiled. With a chitosan loading of 0.4 wt%, the experimental adsorption capacity reached 261.3 mg/g. The good dispersion of chitosan played a crucial role in the high capacity. The large proportion of mesopores in the adsorbent facilitated mass transfer, and thereby adsorption equilibrium states could be achieved within 15 s. The adsorption isotherms were consistent with the Freundlich expression. The Pb2+ adsorption capacity was suppressed with the addition of 150 ppm Ca2+ and almost eliminated in the presence of 150 ppm Mg2+. The adsorption enthalpy change was measured to be - 28.6 kJ/mol and Gibbs free energy change was in the range of - 18.4 to - 16.7 kJ/mol, indicating that this adsorption process was exothermic and spontaneous. The FTIR and XPS results demonstrated that the amino groups on chitosan could bond with Pb2+, and contributed to the high adsorption capacity. DFT calculation results showed that the amino and hydroxyl groups in adjacent chitosan units could be tri-coordinated with Pb2+, and the energy of system was greatly decreased due to the coordination interaction.
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Affiliation(s)
- Shuo Ai
- Department of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, 545006, China.
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Liuzhou City, 545006, China.
| | - Yongchun Huang
- Department of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, 545006, China
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Liuzhou City, 545006, China
| | - Tenghui Xie
- Department of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, 545006, China
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Liuzhou City, 545006, China
| | - Xiangyu Zhang
- Department of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, 545006, China
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Liuzhou City, 545006, China
| | - Chengdu Huang
- Department of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, 545006, China
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Liuzhou City, 545006, China
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Dash B, Dash B, Rath SS. A thorough understanding of the adsorption of Ni (II), Cd (II) and Zn (II) on goethite using experiments and molecular dynamics simulation. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116649] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Ai S, Huang Y, Xie T, Huang C. Facile Carboxylation of Sugarcane Bagasse and the Adsorption Mechanism for Cadmium Ions. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c00037] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Affiliation(s)
- Shuo Ai
- Department of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City 545006, China
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Liuzhou City 545006, China
| | - Yongchun Huang
- Department of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City 545006, China
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Liuzhou City 545006, China
| | - Tenghui Xie
- Department of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City 545006, China
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Liuzhou City 545006, China
| | - Chengdu Huang
- Department of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City 545006, China
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Liuzhou City 545006, China
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Du Z, Cao H, Zheng T, Wang P, Quan J. Modelling and development of a modular oscillating-bed adsorption reactor system for copper ion removal from water in emergency. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.115933] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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12
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Corda N, Kini MS. Recent studies in adsorption of Pb(II), Zn(II) and Co(II) using conventional and modified materials:a review. SEP SCI TECHNOL 2019. [DOI: 10.1080/01496395.2019.1652651] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Nikita Corda
- Department of Chemical Engineering, Manipal Institute of Technology, Mahe, Manipal, India
| | - M. Srinivas Kini
- Department of Chemical Engineering, Manipal Institute of Technology, Mahe, Manipal, India
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13
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Modeling for predicting copper ion removal from aqueous solution by the fluidized adsorption based on dimensional analysis. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.06.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Panda L, Rath SS, Rao DS, Nayak BB, Das B, Misra PK. Thorough understanding of the kinetics and mechanism of heavy metal adsorption onto a pyrophyllite mine waste based geopolymer. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.05.016] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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