1
|
Affiliation(s)
- Cristina Marcu
- National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj-Napoca, Romania
| | - Ancuţa Balla
- National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj-Napoca, Romania
| | - Jozsef Zsolt Szűcs Balázs
- National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj-Napoca, Romania
| | - Claudia Lar
- National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj-Napoca, Romania
| |
Collapse
|
2
|
Dragan ES, Humelnicu D. Contribution of Cross-Linker and Silica Morphology on Cr(VI) Sorption Performances of Organic Anion Exchangers Embedded into Silica Pores. Molecules 2020; 25:E1249. [PMID: 32164286 PMCID: PMC7179461 DOI: 10.3390/molecules25051249] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/05/2020] [Accepted: 03/08/2020] [Indexed: 12/12/2022] Open
Abstract
Removal of Cr(VI) from the environment represents a stringent issue because of its tremendous effects on living organisms. In this context, design of sorbents with high sorption capacity for Cr(VI) is getting a strong need. For this purpose, poly(vinylbenzyl chloride), impregnated into porous silica (PSi), was cross-linked with either N,N,N',N'-tetramethyl-1,2-ethylenediamine (TEMED) or N,N,N',N'-tetramethyl-1,3-propanediamine, followed by the reaction of the free -CH2Cl groups with N,N-diethyl-2-hydroxyethylamine to generate strong base anion exchangers (ANEX) inside the pores. The PSi/ANEX composite sorbents were deeply characterized by FTIR spectroscopy, SEM-energy dispersive X-ray spectroscopy (EDX), thermogravimetric analysis (TGA), and water uptake. The sorption performances of composites against Cr(VI) were investigated as a function of pH, contact time, initial concentration of Cr(VI), and temperature. It was found that the cross-linker structure and the silica morphology are the key factors controlling the sorption capacity. The adsorption process was spontaneous and endothermic and well described by pseudo-second-order kinetic and Sips isotherm models. The maximum sorption capacity of 311.2 mg Cr(VI)/g sorbent was found for the composite prepared with mesoporous silica using TEMED as cross-linker. The PSi/ANEX composite sorbents represent an excellent alternative for the removal of Cr(VI) oxyanions, being endowed with fast kinetics, equilibrium in about 60 min, and a high level of reusability in successive sorption/desorption cycles.
Collapse
Affiliation(s)
- Ecaterina Stela Dragan
- “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41 A, 700487 Iasi, Romania
| | - Doina Humelnicu
- Faculty of Chemistry, “Al. I. Cuza” University of Iasi, Bd. 11 Carol I, 700506 Iasi, Romania;
| |
Collapse
|
3
|
Dragan ES, Humelnicu D, Dinu MV. Design of porous strong base anion exchangers bearing N,N-dialkyl 2-hydroxyethyl ammonium groups with enhanced retention of Cr(VI) ions from aqueous solution. REACT FUNCT POLYM 2018; 124:55-63. [DOI: 10.1016/j.reactfunctpolym.2018.01.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
4
|
Preethi J, Farzana MH, Meenakshi S. Photo-reduction of Cr(VI) using chitosan supported zinc oxide materials. Int J Biol Macromol 2017; 104:1783-1793. [DOI: 10.1016/j.ijbiomac.2017.02.082] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 02/07/2017] [Accepted: 02/22/2017] [Indexed: 10/20/2022]
|
5
|
Affiliation(s)
- Do-Hyeong Kim
- Department of Green Chemical Engineering, Sangmyung University, 300 Anseo-dong, Dongnam-gu, Cheonan 330-720, Korea
| | - Moon-Sung Kang
- Department of Green Chemical Engineering, Sangmyung University, 300 Anseo-dong, Dongnam-gu, Cheonan 330-720, Korea
| |
Collapse
|
6
|
Zhuo W, Xu H, Huang R, Zhou J, Tong Z, Xie H, Zhang X. A chelating polymer resin: synthesis, characterization, adsorption and desorption performance for removal of Hg(II) from aqueous solution. J IRAN CHEM SOC 2017. [DOI: 10.1007/s13738-017-1190-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
|
7
|
Lyu J, Liu H, Zeng Z, Zhang J, Xiao Z, Bai P, Guo X. Metal–Organic Framework UiO-66 as an Efficient Adsorbent for Boron Removal from Aqueous Solution. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.6b04066] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiafei Lyu
- Department of Pharmaceutical Engineering, School of Chemical Engineering
and Technology and ‡Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300350, PR China
| | - Hongxu Liu
- Department of Pharmaceutical Engineering, School of Chemical Engineering
and Technology and ‡Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300350, PR China
| | - Zhouliangzi Zeng
- Department of Pharmaceutical Engineering, School of Chemical Engineering
and Technology and ‡Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300350, PR China
| | - Jingshuang Zhang
- Department of Pharmaceutical Engineering, School of Chemical Engineering
and Technology and ‡Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300350, PR China
| | - Zixing Xiao
- Department of Pharmaceutical Engineering, School of Chemical Engineering
and Technology and ‡Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300350, PR China
| | - Peng Bai
- Department of Pharmaceutical Engineering, School of Chemical Engineering
and Technology and ‡Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300350, PR China
| | - Xianghai Guo
- Department of Pharmaceutical Engineering, School of Chemical Engineering
and Technology and ‡Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300350, PR China
| |
Collapse
|
8
|
Sun X, Yang L, Dong T, Liu Z, Liu H. Removal of Cr(VI) from aqueous solution using amino-modified Fe3O4-SiO2-chitosan magnetic microspheres with high acid resistance and adsorption capacity. J Appl Polym Sci 2015. [DOI: 10.1002/app.43078] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Xitong Sun
- CAS Key Laboratory of Biobased Materials; Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences; Qingdao 266101 People's Republic of China
- Key Laboratory of Green Process and Engineering, Institute of Process Engineering; Chinese Academy of Sciences; Beijing 100190 People's Republic of China
- University of Chinese Academy of Sciences; Beijing 100049 People's Republic of China
| | - Liangrong Yang
- Key Laboratory of Green Process and Engineering, Institute of Process Engineering; Chinese Academy of Sciences; Beijing 100190 People's Republic of China
| | - Tingting Dong
- Key Laboratory of Green Process and Engineering, Institute of Process Engineering; Chinese Academy of Sciences; Beijing 100190 People's Republic of China
- University of Chinese Academy of Sciences; Beijing 100049 People's Republic of China
| | - Zhini Liu
- Key Laboratory of Green Process and Engineering, Institute of Process Engineering; Chinese Academy of Sciences; Beijing 100190 People's Republic of China
- College of Chemical Engineering; Xiangtan University; Xiangtan 411105 People's Republic of China
| | - Huizhou Liu
- CAS Key Laboratory of Biobased Materials; Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences; Qingdao 266101 People's Republic of China
- Key Laboratory of Green Process and Engineering, Institute of Process Engineering; Chinese Academy of Sciences; Beijing 100190 People's Republic of China
| |
Collapse
|
9
|
Azarudeen RS, Riswan Ahamed MA, Thirumarimurugan M, Prabu N, Jeyakumar D. Synthetic functionalized terpolymeric resin for the removal of hazardous metal ions: synthesis, characterization and batch separation analysis. POLYM ADVAN TECHNOL 2015. [DOI: 10.1002/pat.3626] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Raja S. Azarudeen
- Department of Chemical Engineering; Coimbatore Institute of Technology; Coimbatore Tamil Nadu 641 014 India
| | - Mohamed A. Riswan Ahamed
- Department of Chemistry; Sri Ranganathar Institute of Engineering and Technology; Coimbatore 641 110 India
| | - M. Thirumarimurugan
- Department of Chemical Engineering; Coimbatore Institute of Technology; Coimbatore Tamil Nadu 641 014 India
| | - N. Prabu
- Functional Materials Division; Central Electrochemical Research Institute; Karaikudi Tamil Nadu 630 006 India
| | - D. Jeyakumar
- Functional Materials Division; Central Electrochemical Research Institute; Karaikudi Tamil Nadu 630 006 India
| |
Collapse
|
10
|
Prabhu SM, Viswanathan N, Meenakshi S. Defluoridation of water using chitosan assisted ethylenediamine functionalized synthetic polymeric blends. Int J Biol Macromol 2014; 70:621-7. [DOI: 10.1016/j.ijbiomac.2014.07.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Revised: 06/19/2014] [Accepted: 07/04/2014] [Indexed: 11/18/2022]
|
11
|
Santander IP, Rivas BL, Urbano B, Leiton L, İpek İY, Yüksel M, Kabay N, Bryjak M. Removal of Cr(VI) by a chelating resin containing N-methyl-d-glucamine. Polym Bull (Berl) 2014. [DOI: 10.1007/s00289-014-1156-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
12
|
Rogers CM, Burke IT, Ahmed IAM, Shaw S. Immobilization of chromate in hyperalkaline waste streams by green rusts and zero-valent iron. Environ Technol 2014; 35:508-513. [PMID: 24600891 DOI: 10.1080/09593330.2013.834948] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Zero-valent iron (ZVI) and green rusts can be used as reductants to convert chromium from soluble, highly toxic Cr(VI) to insoluble Cr(III). This study compared the reduction rates of Cr(VI) by ZVI and two carbonate green rust phases in alkaline/hyperalkaline solutions. Batch experiments were carried out with synthetic chromate solutions at pH 7.7-12.3 and a chromite ore processing residue (COPR) leachate (pH approximately 12.2). Green rust removes chromate from high pH solutions (pH 10-12.5) very rapidly (<400 s). Chromate reduction rates for both green rust phases were consistently higher than for ZVI throughout the pH range studied; the surface area normalized rate constants were two orders of magnitude higher in the COPR leachate solution at pH 12.2. The performances of both green rusts were unaffected by changes in pH. In contrast, ZVI exhibited a marked decline in reduction rate with increasing pH to become almost ineffective above pH12.
Collapse
Affiliation(s)
- Christine M Rogers
- School of Earth and Environment, Earth Surface Science Institute, University of Leeds, Leeds LS2 9JT UK.
| | - Ian T Burke
- School of Earth and Environment, Earth Surface Science Institute, University of Leeds, Leeds LS2 9JT UK
| | - Imad A M Ahmed
- School of Earth and Environment, Earth Surface Science Institute, University of Leeds, Leeds LS2 9JT UK
| | - Samuel Shaw
- School of Earth and Environment, Earth Surface Science Institute, University of Leeds, Leeds LS2 9JT UK
| |
Collapse
|
13
|
|
14
|
Xiong C, Jia Q, Chen X, Wang G, Yao C. Optimization of Polyacrylonitrile-2-aminothiazole Resin Synthesis, Characterization, and Its Adsorption Performance and Mechanism for Removal of Hg(II) from Aqueous Solutions. Ind Eng Chem Res 2013. [DOI: 10.1021/ie3033312] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chunhua Xiong
- Department of Applied Chemistry, Zhejiang Gongshang University, Hangzhou, 310012, China
| | - Qian Jia
- Department of Applied Chemistry, Zhejiang Gongshang University, Hangzhou, 310012, China
| | - Xinyi Chen
- Department of Applied Chemistry, Zhejiang Gongshang University, Hangzhou, 310012, China
| | - Guotao Wang
- Department of Applied Chemistry, Zhejiang Gongshang University, Hangzhou, 310012, China
| | - Caiping Yao
- Department of Applied Chemistry, Zhejiang Gongshang University, Hangzhou, 310012, China
| |
Collapse
|
15
|
Mohamed MH, Wilson LD. Porous Copolymer Resins: Tuning Pore Structure and Surface Area with Non Reactive Porogens. Nanomaterials (Basel) 2012; 2:163-86. [PMID: 28348302 DOI: 10.3390/nano2020163] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2012] [Revised: 05/16/2012] [Accepted: 05/29/2012] [Indexed: 12/03/2022]
Abstract
In this review, the preparation of porous copolymer resin (PCR) materials via suspension polymerization with variable properties are described by tuning the polymerization reaction, using solvents which act as porogens, to yield microporous, mesoporous, and macroporous materials. The porogenic properties of solvents are related to traditional solubility parameters which yield significant changes in the surface area, porosity, pore volume, and morphology of the polymeric materials. The mutual solubility characteristics of the solvents, monomer units, and the polymeric resins contribute to the formation of porous materials with tunable pore structures and surface areas. The importance of the initiator solubility, surface effects, the temporal variation of solvent composition during polymerization, and temperature effects contribute to the variable physicochemical properties of the PCR materials. An improved understanding of the factors governing the mechanism of formation for PCR materials will contribute to the development and design of versatile materials with tunable properties for a wide range of technical applications.
Collapse
|