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Ren Z, Wang J, Zhang H, Zhang F, Tian S, Zhou Z. Adsorption of rubidium ion from aqueous solution by surface ion imprinted materials. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2022.04.011] [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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Li Q, Shi W, Yang Q. Polarization induced covalent bonding: A new force of heavy metal adsorption on charged particle surface. JOURNAL OF HAZARDOUS MATERIALS 2021; 412:125168. [PMID: 33524729 DOI: 10.1016/j.jhazmat.2021.125168] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 12/24/2020] [Accepted: 01/14/2021] [Indexed: 06/12/2023]
Abstract
Classically, stable covalent bonding cannot occur between heavy metal cations and clay surface O atoms. However, the classical theory ignores the effect of the electric field arising from clay surface charges on the orbitals of surface O atoms. This article studies the adsorption behavior of heavy metal cations (Pb2+, Cd2+, Cu2+, and Zn2+) on charged montmorillonite surfaces from a new theoretical foundation based on the quantum mechanics analysis of surface O atoms in this electric field, which reveals that polarization-induced covalent bonding is a strong adsorption force. The strength of polarization-induced covalent bonding can be controlled by regulating the energy of the lone-pair electrons of surface O atoms, which depends on solution pH, electrolyte type, electrolyte concentration, temperature or dielectric constant of medium, etc. The mathematic relationship between the energy of lone-pair electrons of surface O atoms and electric field arising from surface charges was established through quantum mechanics analysis; and correspondingly the mathematical relationship between the polarization-induced covalent bonding energy and surface potential also was established for different heavy metal cations. The finding of the new adsorption force will have important impact on both theoretical research and removal/deactivation approaches of heavy metal cations.
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Affiliation(s)
- Qinyi Li
- School of Geographical Sciences, Southwest University, Chongqing 400715, PR China; Chongqing Key Laboratory of Soil Multi-scale Interfacial Process, College of Resources and Environment, Southwest University, Chongqing 400715, PR China
| | - Weiyu Shi
- School of Geographical Sciences, Southwest University, Chongqing 400715, PR China.
| | - Qingyuan Yang
- School of Geographical Sciences, Southwest University, Chongqing 400715, PR China.
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Zhou Z, Hu Y, Wang Z, Zhang H, Zhang B, Ren Z. Facile preparation of a rubidium ion-imprinted polymer by bulk polymerization for highly efficient separation of rubidium ions from aqueous solution. NEW J CHEM 2021. [DOI: 10.1039/d1nj00568e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel rubidium ion-imprinted polymer was prepared by bulk polymerization for selective adsorption of Rb(i).
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Affiliation(s)
- Zhiyong Zhou
- College of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- People's Republic of China
| | - Yulei Hu
- College of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- People's Republic of China
| | - Zhuo Wang
- College of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- People's Republic of China
| | - Hewei Zhang
- College of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- People's Republic of China
| | - Bing Zhang
- College of Mechanical and Electrical Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- People's Republic of China
| | - Zhongqi Ren
- College of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- People's Republic of China
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Chen S, Hu J, Guo Y, Deng T. Facile Synthesis of Porous Polymer Using Biomass Polyphenol Source for Highly Efficient Separation of Cs + from Aqueous Solution. Sci Rep 2020; 10:8221. [PMID: 32427956 PMCID: PMC7237466 DOI: 10.1038/s41598-020-65099-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 03/23/2020] [Indexed: 11/09/2022] Open
Abstract
In this work, a series of polyphenol porous polymers were derived from biomass polyphenols via a facile azo-coupling method. The structure and morphologies of the polymer were characterized by BET, TEM, SEM, XRD, TGA and FT-IR techniques. Batch experiments demonstrated their potentialities for adsorptive separation of Cs+ from aqueous solution. Among them, porous polymers prepared with gallic acid as starting material (GAPP) could adsorb Cs+ at wide pH value range effectively, and the optimal adsorption capacity was up to 163.6 mg/g, placing it at top material for Cs+ adsorption. GAPP exhibited significantly high adsorption performance toward Cs+ compared to Na+ and K+, making it possible in selective removal of Cs+ from ground water in presence of co-existing competitive ions. Moreover, the Cs-laden GAPP could be facilely eluted and reused in consecutive adsorption-desorption processes. As a result, we hope this work could provide ideas about the potential utilization of biomass polyphenol in environmental remediation.
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Affiliation(s)
- Shangqing Chen
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, P.R. China
| | - Jiayin Hu
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, P.R. China.
| | - Yafei Guo
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, P.R. China
| | - Tianlong Deng
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, P.R. China.
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Zhu Y, Wang W, Yu H, Wang A. Preparation of porous adsorbent via Pickering emulsion template for water treatment: A review. J Environ Sci (China) 2020; 88:217-236. [PMID: 31862064 DOI: 10.1016/j.jes.2019.09.001] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 08/30/2019] [Accepted: 09/02/2019] [Indexed: 05/27/2023]
Abstract
Porous materials as emerging potential adsorbents have received much more attention because they are capable of capturing various pollutants with fast adsorption rate, high adsorption capacity, good selectivity and excellent reusability. In order to prepare porous materials with decent porous structure, Pickering emulsion template method has been proved to be one of the most effective technologies to create pore structure. This paper reviewed comprehensively the latest research progress on the preparation of porous materials from various Pickering emulsions and their applications in the decontamination of pollutants (e.g., heavy metal ions, organic pollutants) and in the oil/water separation. It was expected that the summaries and discussions in this review will provide insights into the design and fabrication of new efficient porous adsorbents, and also give us a better understanding of the subject.
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Affiliation(s)
- Yongfeng Zhu
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Wenbo Wang
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Hui Yu
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Aiqin Wang
- Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
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Han H, Rafiq MK, Zhou T, Xu R, Mašek O, Li X. A critical review of clay-based composites with enhanced adsorption performance for metal and organic pollutants. JOURNAL OF HAZARDOUS MATERIALS 2019; 369:780-796. [PMID: 30851518 DOI: 10.1016/j.jhazmat.2019.02.003] [Citation(s) in RCA: 156] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 01/23/2019] [Accepted: 02/02/2019] [Indexed: 06/09/2023]
Abstract
Adsorption techniques offer unique advantages owing to the use of synthetic (e.g., nanosized metal oxides and polymer-functionalized nanocomposites) and natural (e.g., clay and biochar) materials for pollutant removal. Although the most widely used adsorbent is activated carbon, extensive studies have highlighted the promising potential of modified clay minerals and biochar for removing heavy metal and organic pollutants from industrial, drinking, and eutrophic wastewater, due to their low cost and easy accessibility. However, clay modification using acids, calcination, polymers, or surfactants exhibits relatively low absorption/regeneration ability towards antibiotics, aromatics, and various dyes. The coexistence of numerous contaminants in industrial wastewater inhibited the performance of adsorbents, which accelerated the development of novel modified clay composites such as clay-biochar, organo-bentonite/sodium alginate beads, and enhanced biochar. This review summarizes recent studies and absorption mechanisms concerning clay composites based on various modification methods and component materials. The comparison of clay composites used for the removal of organic and inorganic contaminants provides valuable insight into real wastewater treatment. Knowledge gaps, uncertainties, and future challenges involved in the fabrication and regeneration of modified clay composites are also identified.
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Affiliation(s)
- Huawen Han
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Tianshui South Road #222, Lanzhou, Gansu, 730000, People's Republic of China
| | - Muhammad Khalid Rafiq
- UK Biochar Research Centre, School of GeoSciences, University of Edinburgh, Crew Building, King's Buildings, Edinburgh, EH9 3FF, United Kingdom; Rangeland Research Institute, National Agricultural Research Center, Islamabad, 44000, Pakistan
| | - Tuoyu Zhou
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Tianshui South Road #222, Lanzhou, Gansu, 730000, People's Republic of China
| | - Rong Xu
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Tianshui South Road #222, Lanzhou, Gansu, 730000, People's Republic of China
| | - Ondřej Mašek
- UK Biochar Research Centre, School of GeoSciences, University of Edinburgh, Crew Building, King's Buildings, Edinburgh, EH9 3FF, United Kingdom
| | - Xiangkai Li
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Tianshui South Road #222, Lanzhou, Gansu, 730000, People's Republic of China.
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Regeneration and reuse of polymeric nanocomposites in wastewater remediation: the future of economic water management. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2403-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Lu T, Zhu Y, Wang W, Qi Y, Wang A. Polyaniline-functionalized porous adsorbent for Sr2+ adsorption. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-018-5935-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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