51
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The kinetic and thermodynamic study of the removal of Cr(VI) ion from aqueous solution by human hair waste. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2017. [DOI: 10.1007/s13738-017-1115-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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52
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Nie Z, Finck N, Heberling F, Pruessmann T, Liu C, Lützenkirchen J. Adsorption of Selenium and Strontium on Goethite: EXAFS Study and Surface Complexation Modeling of the Ternary Systems. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:3751-3758. [PMID: 28285518 DOI: 10.1021/acs.est.6b06104] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Knowledge of the geochemical behavior of selenium and strontium is critical for the safe disposal of radioactive wastes. Goethite, as one of the most thermodynamically stable and commonly occurring natural iron oxy-hydroxides, promisingly retains these elements. This work comprehensively studies the adsorption of Se(IV) and Sr(II) on goethite. Starting from electrokinetic measurements, the binary and ternary adsorption systems are investigated and systematically compared via batch experiments, EXAFS analysis, and CD-MUSIC modeling. Se(IV) forms bidentate inner-sphere surface complexes, while Sr(II) is assumed to form outer-sphere complexes at low and intermediate pH and inner-sphere complexes at high pH. Instead of a direct interaction between Se(IV) and Sr(II), our results indicate an electrostatically driven mutual enhancement of adsorption. Adsorption of Sr(II) is promoted by an average factor of 5 within the typical groundwater pH range from 6 to 8 for the concentration range studied here. However, the interaction between Se(IV) and Sr(II) at the surface is two-sided, Se(IV) promotes Sr(II) outer-sphere adsorption, but competes for inner-sphere adsorption sites at high pH. The complexity of surfaces is highlighted by the inability of adsorption models to predict isoelectric points without additional constraints.
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Affiliation(s)
- Zhe Nie
- Beijing National Laboratory for Molecular Sciences, Fundamental Science Laboratory on Radiochemistry and Radiation Chemistry, College of Chemistry and Molecular Engineering, Peking University , Beijing, 100871, China
- Institute for Nuclear Waste Disposal, Karlsruhe Institute of Technology , Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Nicolas Finck
- Institute for Nuclear Waste Disposal, Karlsruhe Institute of Technology , Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Frank Heberling
- Institute for Nuclear Waste Disposal, Karlsruhe Institute of Technology , Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Tim Pruessmann
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology , Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology , Engesserstr. 20, 76131 Karlsruhe, Germany
| | - Chunli Liu
- Beijing National Laboratory for Molecular Sciences, Fundamental Science Laboratory on Radiochemistry and Radiation Chemistry, College of Chemistry and Molecular Engineering, Peking University , Beijing, 100871, China
| | - Johannes Lützenkirchen
- Institute for Nuclear Waste Disposal, Karlsruhe Institute of Technology , Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
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53
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Uptake of phosphate and Cr(VI) by amine-functionalized Chinese reed: Considering the computations and characteristics analysis. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2017.01.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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54
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Gu X, Xie J, Wang X, Evans LJ. A simple model to predict chromate partitioning in selected soils from China. JOURNAL OF HAZARDOUS MATERIALS 2017; 322:421-429. [PMID: 27773440 DOI: 10.1016/j.jhazmat.2016.10.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 10/06/2016] [Accepted: 10/15/2016] [Indexed: 06/06/2023]
Abstract
Due to its mobility and toxicity, chromate [Cr(VI)] partitioning in soils, especially in the vadose zone, is an important environmental concern. The aim of this study was to develop a mechanism-based multi-surface complexation model using published parameters to predict the soil/water partitioning of Cr(VI) in 12 soils (previously depleted of organic matter) from China. The retention of Cr(VI) in soils was attributed to two reactive oxide surfaces: goethite and hydrous ferric oxide (HFO); however, modeling results showed that the best prediction was obtained with goethite alone, whereas the addition of HFO resulted in an overestimation of adsorption in some soils. Cr(VI) adsorption onto goethite could be described using our previously proposed CD-MUSIC model. In the absence of a specific value for the soil-reactive surface area of goethite, a general value of 45.8m2/g was used. The available phosphate in soils was identified as a strong competitor for Cr(VI) adsorption; thus, for soils with a low Fe/P ratio (<1) the effect of phosphate on Cr(VI) retention should not be neglected. The simple method presented herein can be applied to soils with a wide range of properties, pH values, and Cr(VI) loading concentrations.
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Affiliation(s)
- Xueyuan Gu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 163, Xianlin Ave., Nanjing, 210023, PR China.
| | - Jinyu Xie
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 163, Xianlin Ave., Nanjing, 210023, PR China.
| | - Xiaorong Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 163, Xianlin Ave., Nanjing, 210023, PR China.
| | - Les J Evans
- School of Environmental Sciences, University of Guelph, Guelph, Ontario, N1G 2W1, Canada.
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55
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Synthesis and application of modified Litchi peel for removal of hexavalent chromium from aqueous solutions. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2016.10.140] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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56
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Veselská V, Fajgar R, Číhalová S, Bolanz RM, Göttlicher J, Steininger R, Siddique JA, Komárek M. Chromate adsorption on selected soil minerals: Surface complexation modeling coupled with spectroscopic investigation. JOURNAL OF HAZARDOUS MATERIALS 2016; 318:433-442. [PMID: 27450335 DOI: 10.1016/j.jhazmat.2016.07.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 06/22/2016] [Accepted: 07/02/2016] [Indexed: 06/06/2023]
Abstract
This study investigates the mechanisms of Cr(VI) adsorption on natural clay (illite and kaolinite) and synthetic (birnessite and ferrihydrite) minerals, including its speciation changes, and combining quantitative thermodynamically based mechanistic surface complexation models (SCMs) with spectroscopic measurements. Series of adsorption experiments have been performed at different pH values (3-10), ionic strengths (0.001-0.1M KNO3), sorbate concentrations (10(-4), 10(-5), and 10(-6)M Cr(VI)), and sorbate/sorbent ratios (50-500). Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and X-ray absorption spectroscopy were used to determine the surface complexes, including surface reactions. Adsorption of Cr(VI) is strongly ionic strength dependent. For ferrihydrite at pH <7, a simple diffuse-layer model provides a reasonable prediction of adsorption. For birnessite, bidentate inner-sphere complexes of chromate and dichromate resulted in a better diffuse-layer model fit. For kaolinite, outer-sphere complexation prevails mainly at lower Cr(VI) loadings. Dissolution of solid phases needs to be considered for better SCMs fits. The coupled SCM and spectroscopic approach is thus useful for investigating individual minerals responsible for Cr(VI) retention in soils, and improving the handling and remediation processes.
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Affiliation(s)
- Veronika Veselská
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcka 129, CZ-16521, Prague, Czech Republic.
| | - Radek Fajgar
- Department of Analytical and Material Chemistry, Institute of Chemical Process Fundamentals of the CAS, v.v.i., Rozvojová 135/1, CZ-16502, Prague, Czech Republic
| | - Sylva Číhalová
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcka 129, CZ-16521, Prague, Czech Republic
| | - Ralph M Bolanz
- Institute of Geosciences, Friedrich-Schiller-University Jena, Carl-Zeiss-Promenade 10, DE-07745, Jena, Germany
| | - Jörg Göttlicher
- ANKA Synchrotron Radiation Facility, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, DE-76344, Eggenstein-Leopoldshafen, Germany
| | - Ralph Steininger
- ANKA Synchrotron Radiation Facility, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, DE-76344, Eggenstein-Leopoldshafen, Germany
| | - Jamal A Siddique
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcka 129, CZ-16521, Prague, Czech Republic
| | - Michael Komárek
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcka 129, CZ-16521, Prague, Czech Republic
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57
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Wang H, Tian Z, Jiang L, Luo W, Wei Z, Li S, Cui J, Wei W. Highly efficient adsorption of Cr(VI) from aqueous solution by Fe3+ impregnated biochar. J DISPER SCI TECHNOL 2016. [DOI: 10.1080/01932691.2016.1203333] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Hong Wang
- Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control, School of the Environment, Nanjing Normal University, Nanjing, China
- Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Ministry of Education, Nanjing, China
- State Key Laboratory Cultivation Base of Geographical Environment Evolution (Jiangsu Province), Nanjing, China
- Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, China
| | - Zhuangzhuang Tian
- School of Electronics and Information Engineering, Sias International University, Xinzheng, China
| | - Ling Jiang
- Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control, School of the Environment, Nanjing Normal University, Nanjing, China
| | - Wenwen Luo
- Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control, School of the Environment, Nanjing Normal University, Nanjing, China
| | - Zhenggui Wei
- Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control, School of the Environment, Nanjing Normal University, Nanjing, China
| | - Shiyin Li
- Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control, School of the Environment, Nanjing Normal University, Nanjing, China
| | - Jing Cui
- Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control, School of the Environment, Nanjing Normal University, Nanjing, China
| | - Wei Wei
- Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control, School of the Environment, Nanjing Normal University, Nanjing, China
- Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Ministry of Education, Nanjing, China
- State Key Laboratory Cultivation Base of Geographical Environment Evolution (Jiangsu Province), Nanjing, China
- Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, China
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58
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Ni C, Liu S, Cui L, Han Z, Wang L, Chen R, Liu H. Adsorption performance of Cr(vi) onto Al-free and Al-substituted ferrihydrites. RSC Adv 2016. [DOI: 10.1039/c6ra09465a] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Al-Substituted ferrihydrite exhibits a higher adsorption capacity for Cr(vi) than pure ferrihydrite.
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Affiliation(s)
- Chunyan Ni
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang
- China
| | - Shan Liu
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang
- China
| | - Linjing Cui
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang
- China
| | - Zhao Han
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang
- China
| | - Lin Wang
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang
- China
| | - Rufen Chen
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang
- China
- Key Laboratory of Inorganic Nanomaterial of Hebei Province
| | - Hui Liu
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang
- China
- Key Laboratory of Inorganic Nanomaterial of Hebei Province
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59
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Wu S, Lu J, Ding Z, Li N, Fu F, Tang B. Cr(vi) removal by mesoporous FeOOH polymorphs: performance and mechanism. RSC Adv 2016. [DOI: 10.1039/c6ra14522a] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The mesoporous FeOOH polymorphs, i.e., goethite (α-FeOOH), akaganeite (β-FeOOH), lepidocrocite (γ-FeOOH), and feroxyhyte (δ-FeOOH) were synthesized and characterized before and after reaction with Cr(vi) using various analytical techniques.
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Affiliation(s)
- Shijiao Wu
- School of Environmental Science and Engineering
- Institute of Environmental Health and Pollution Control
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Jianwei Lu
- School of Environmental Science and Engineering
- Institute of Environmental Health and Pollution Control
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Zecong Ding
- School of Environmental Science and Engineering
- Institute of Environmental Health and Pollution Control
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Na Li
- School of Environmental Science and Engineering
- Institute of Environmental Health and Pollution Control
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Fenglian Fu
- School of Environmental Science and Engineering
- Institute of Environmental Health and Pollution Control
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Bing Tang
- School of Environmental Science and Engineering
- Institute of Environmental Health and Pollution Control
- Guangdong University of Technology
- Guangzhou 510006
- China
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