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Feng Z, Zhu C, Meng Y, Wang Z. Preparation of highly selective polyether sulfone /polym-phenylenediamine membrane for recovery of Au(III) from aqueous solutions. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.11.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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Feng X, He Y, Xing Z, Zhang M, Li R, Wu G. Highly selective adsorption of Pt(IV) from spent catalyst by polyethyleneimine functionalized polyethylene/polypropylene non‐woven fabric. J Appl Polym Sci 2022. [DOI: 10.1002/app.53322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Liu F, Zhou Z, Li G. Persimmon tannin functionalized polyacrylonitrile fiber for highly efficient and selective recovery of Au(III) from aqueous solution. Chemosphere 2021; 264:128469. [PMID: 33022501 DOI: 10.1016/j.chemosphere.2020.128469] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 09/21/2020] [Accepted: 09/26/2020] [Indexed: 06/11/2023]
Abstract
An efficient fibrous adsorbent (PANF-TETA-PT) was prepared via grafting triethylenetetramine (TETA) on polyacrylonitrile fiber (PANF), followed by persimmon tannin (PT) immobilizing. Detailed characterization certified that plenty amounts of amino and phenolic hydroxyl groups existed on the surface of PANF-TETA-PT, which would provide excellent active sites for Au(III) adsorption. The batch characteristic results found that the adsorption equilibrium data could be fitted well with Langmuir equation, while the obtained kinetic data were consistent with the Pseudo-second-order equation. The maximum equilibrium adsorption capacity of PANF-TETA-PT towards Au(III) (801.2 mg/g) was apparently superior than that of the reported adsorbents, and the competitive adsorption showed that PANF-TETA-PT had a good preference to adsorption Au(III) in spite of some coexisting pollutants. The characterization analysis of Scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and X-ray diffractometer spectrum (XRD) revealed that the electrostatic attraction and chelation dominated the uptake of Au(III) on PANF-TETA-PT, in which a part of loaded Au(III) was reduced to Au particles with the help of reductive functional groups. Thus, this adsorbent could be as a promising candidate to separation and preconcentration of Au(III) from wastewater.
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Affiliation(s)
- Fenglei Liu
- School of Life Science, Shaoxing University, Huancheng West Road 508, Shaoxing, 312000, PR China
| | - Zhide Zhou
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin, 541004, China
| | - Guiyin Li
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin, 541004, China.
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Liu F, Zhou L, Tao L, Qian L, Yu G, Deng S. Adsorption behavior and mechanism of Au(III) on caffeic acid functionalized viscose staple fibers. Chemosphere 2020; 253:126704. [PMID: 32464774 DOI: 10.1016/j.chemosphere.2020.126704] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 03/31/2020] [Accepted: 04/02/2020] [Indexed: 06/11/2023]
Abstract
A novel fibrous adsorbent (DAVSF-CA) was synthesized via grafting caffeic acid (CA) onto dialdehyde viscose staple fiber (DAVSF), and used to selectively adsorb Au(III) from simulated wastewater. Fourier Transform Infrared (FTIR), X-ray Photoelectron (XPS) and Nuclear Magnetic Resonance (NMR) spectra confirmed that caffeic acid was successfully grafted on DAVSF through condensation reaction. Adsorption experiments revealed that the adsorption of Au(III) on DAVSF-CA was extremely dependent on pH values and temperatures, and the maximum adsorption capacity of 3.71 mmol/g for Au(III) was obtained at pH 3.0 and 333 K according to the Langmuir fitting. High temperature was favorable for Au(III) adsorption because the adsorption of Au(III) on the DAVSF-CA was endothermic. The competitive adsorption demonstrated that DAVSF-CA had a good preference to Au(III) adsorption in the presence of some coexisting pollutants. The adsorption isotherm data of Au(III) were well-described by the Langmuir model, while the kinetic data were fitted well by the Pseudo-second-order equation. The major reaction involving the reduction of Au(III) to Au(0) was identified by XPS and XRD analysis. Namely, Au(III) was first captured on protonated functional groups via electrostatic adsorption, and then reduced to its elemental form and formed the nano-particles on the adsorbent surfaces.
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Affiliation(s)
- Fenglei Liu
- School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, Tsinghua University, Beijing, 100084, China
| | - Liang Zhou
- School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, Tsinghua University, Beijing, 100084, China
| | - Liyuan Tao
- School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, Tsinghua University, Beijing, 100084, China
| | - Ling Qian
- Sino-Japan Friendship Center for Environmental Protection, Beijing, 100029, China
| | - Gang Yu
- School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, Tsinghua University, Beijing, 100084, China
| | - Shubo Deng
- School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, Tsinghua University, Beijing, 100084, China.
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Liu J, Jin C, Wang C. Hyperbranched thiourea-grafted electrospun polyacrylonitrile fibers for efficient and selective gold recovery. J Colloid Interface Sci 2019; 561:449-458. [PMID: 31767393 DOI: 10.1016/j.jcis.2019.11.016] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 11/04/2019] [Accepted: 11/04/2019] [Indexed: 11/25/2022]
Abstract
Research on the recovery of precious metals (including gold, Au), attracts attention of scientists worldwide. This paper reports synthesis of a novel fiber adsorbent consisting of hyperbranched thiourea-grafted electrospun polyacrylonitrile (HS-PAN) for Au(III) ion recovery. High-density functional groups of the hyperbranched structure allowed HS-PAN fibers to exhibit much higher affinity and selectivity towards Au(III) than towards Pt(IV), Cr(VI), Pb(II), Ni(II), Co(II), Fe(III), Mg(II), Cu(II) and Na(I). Au(III) adsorption proceeded according to the pseudo-second-order kinetic model and could be fitted very well using Langmuir isotherm. The maximum adsorption capacity of these fibers relative to Au(III) was 3257.3 mg/g, which is higher than the values reported in the literature for other Au(III) adsorbents. Our novel HS-PAN fibers can extract Au from real electronic waste with 99% recovery yield in just 1 h. Thus, this study demonstrates a very efficient and low-cost way to recover gold.
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Affiliation(s)
- Jiadi Liu
- College of Plant Science, Jilin University, Changchun 130062, PR China
| | - Changxian Jin
- Jilin Zhenliang Science and Technology Co. Ltd, Changchun 130012, PR China
| | - Ce Wang
- Alan G. Macdiarmid Institute, College of Chemistry, Jilin University, Changchun, Jilin 130012, PR China.
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Zhang W, Wu L, Han X, Yao L, Zhao S, Sun J, Xu Y, Li J, Xiong C. Green chemical synthesis of new chelating fiber and its mechanism for recovery gold from aqueous solution. J Hazard Mater 2019; 378:120674. [PMID: 31301556 DOI: 10.1016/j.jhazmat.2019.05.067] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 04/04/2019] [Accepted: 05/25/2019] [Indexed: 06/10/2023]
Abstract
A novel environmentally-friendly polyacrylonitrile-2-amino-2-thiazoline chelating fiber (PANF-ATL) with good adsorption performance and thermal stability was synthesized in one step by nucleophilic addition reaction using water as a solvent. The optimum synthesis conditions for the chelating fibers are determined by controlling the synthesis temperature and the molar ratio of the reagents. The sulfur content and functional group capacity of the finally synthesized PANF-ATL were 3.82% and 1.19 mmol/g, respectively. PANF-ATL was characterized by elemental analysis, FTIR, TGA, SEM and XPS. Meanwhile, the adsorption characteristics and mechanism of PANF-ATL were evaluated. The Langmuir model and the pseudo-second-order model well described the adsorption of Au(Ⅲ) by PANF-ATL. The adsorption capacity of PANF-ATL obtained from Langmuir isotherm model towards Au(Ⅲ) was 130.58 mg/g (298 K). In addition, Au(Ⅲ) adsorbed on the fibers was completely eluted using a mixed solution of 4 mol/L HCl and 12% thiourea. It still has good adsorption performance after 5 adsorption-desorption cycles. Overall, PANF-ATL is a cost-effective adsorbent that can effectively adsorb Au(Ⅲ) in aqueous solution.
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Affiliation(s)
- Weiquan Zhang
- Department of Applied Chemistry, Zhejiang Gongshang University, No.149 Jiaogong Road, Hangzhou, 310012, PR China
| | - Lina Wu
- School of Foreign Languages, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Xiaoxiang Han
- Department of Applied Chemistry, Zhejiang Gongshang University, No.149 Jiaogong Road, Hangzhou, 310012, PR China
| | - Lanying Yao
- Department of Applied Chemistry, Zhejiang Gongshang University, No.149 Jiaogong Road, Hangzhou, 310012, PR China
| | - Shengze Zhao
- Department of Applied Chemistry, Zhejiang Gongshang University, No.149 Jiaogong Road, Hangzhou, 310012, PR China
| | - Jing Sun
- Department of Applied Chemistry, Zhejiang Gongshang University, No.149 Jiaogong Road, Hangzhou, 310012, PR China
| | - Yanping Xu
- Department of Applied Chemistry, Zhejiang Gongshang University, No.149 Jiaogong Road, Hangzhou, 310012, PR China
| | - Jionghui Li
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Chunhua Xiong
- Department of Applied Chemistry, Zhejiang Gongshang University, No.149 Jiaogong Road, Hangzhou, 310012, PR China.
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Li M, Xue XY, Wang Y, An FQ, Hu TP, Gao JF. Preparation of Surface Imprinted Polymer D301-g
-IIPDMC and its Recognition Selectivity Performance towards AuCl4
−. B KOREAN CHEM SOC 2017. [DOI: 10.1002/bkcs.11345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Min Li
- Chemical Department; North University of China; Taiyuan 030051 People's Republic of China
| | - Xiao-yan Xue
- Chemical Department; North University of China; Taiyuan 030051 People's Republic of China
| | - Yong Wang
- Chemical Department; North University of China; Taiyuan 030051 People's Republic of China
| | - Fu-qiang An
- Chemical Department; North University of China; Taiyuan 030051 People's Republic of China
| | - Tuo-ping Hu
- Chemical Department; North University of China; Taiyuan 030051 People's Republic of China
| | - Jian-feng Gao
- Chemical Department; North University of China; Taiyuan 030051 People's Republic of China
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Zhang G, Zhou Y, Ding Z, Fu L, Wang S. Nanosilica-supported thiosemicarbazide–glutaraldehyde polymer for selective Au(iii) removal from aqueous solution. RSC Adv 2017. [DOI: 10.1039/c7ra10199f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A thiosemicarbazide/nanosilica composite exhibited significant uptake toward Au(iii). Adsorption isotherms and kinetics revealed a synergistic effect of ionic interaction and chelation exists between Au(iii) and the synthesized nanocomposites.
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Affiliation(s)
- Gengwei Zhang
- Faculty of Metallurgical and Energy Engineering
- Kunming University of Science and Technology
- Kunming 650093
- China
| | - Yang Zhou
- School of Textile Science and Engineering
- National Engineering Laboratory for Advanced Yarn and Clean Production
- Wuhan Textile University
- Wuhan 430200
- China
| | - Zhao Ding
- Department of Mechanical, Materials and Aerospace Engineering
- Illinois Institute of Technology
- Chicago 60616
- USA
| | - Likang Fu
- Faculty of Metallurgical and Energy Engineering
- Kunming University of Science and Technology
- Kunming 650093
- China
| | - Shixing Wang
- Faculty of Metallurgical and Energy Engineering
- Kunming University of Science and Technology
- Kunming 650093
- China
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