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Xu Z, Gu S, Sun Z, Zhang D, Zhou Y, Gao Y, Qi R, Chen W. Synthesis of char-based adsorbents from cotton textile waste assisted by iron salts at low pyrolysis temperature for Cr(VI) removal. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:11012-11025. [PMID: 31953756 DOI: 10.1007/s11356-019-07588-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 12/29/2019] [Indexed: 06/10/2023]
Abstract
Char-based adsorbents (char-FeCl3, char-FeCl2, and char-FeCit) derived from cotton textile waste (CTW) were synthesized by one-step low-temperature pyrolysis approach with different iron salts. The properties of the samples were conducted by BET, SEM, EDS, XRD, XPS, TEM, and FTIR. The results suggested that the surface areas of char-FeCl3 and char-FeCl2 were higher than those of char-FeCit. The presence of Fe2O3 as well as pyrolysis gas (HCl (g) and H2O (g)) could catalyze the formation of porosity. Meanwhile, FeCl3 showed the strongest catalysis effect to decompose cellulose to produce char. The pyrolysis process analysis was investigated by means of thermogravimetry-DSC. FeCl3 and FeCl2 could accelerate the breakage of cellulose structure whereas FeC6H5O7 was not beneficial to form char at low temperature as the incomplete decomposition of citrate. The adsorption property of Cr(VI) for the chars was evaluated. Adsorption processes were fitted well with the Freundlich model, and char-FeCl3 presented the best adsorptive capacity (70.39 mg/g). Thus, this low-temperature pyrolysis method was economical and technologically simplified as well as efficient adsorption capacity of Cr(VI) removal. Graphical abstract.
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Affiliation(s)
- Zhihua Xu
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Rd., Shanghai, 200093, People's Republic of China
| | - Siyi Gu
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Rd., Shanghai, 200093, People's Republic of China
| | - Zhenhua Sun
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Rd., Shanghai, 200093, People's Republic of China
| | - Daofang Zhang
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Rd., Shanghai, 200093, People's Republic of China.
| | - Yuwei Zhou
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Rd., Shanghai, 200093, People's Republic of China
| | - Yuquan Gao
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Rd., Shanghai, 200093, People's Republic of China
| | - Renzhi Qi
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Rd., Shanghai, 200093, People's Republic of China
| | - Weifang Chen
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Rd., Shanghai, 200093, People's Republic of China.
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Gao B, Ding C, Wang J, Ding G, Dong J, Ge H, Li X. Construction of a tandem HZSM-5 with CuZnAl catalyst for alkylation of benzene with syngas. NEW J CHEM 2020. [DOI: 10.1039/c9nj05273a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A bifunctional catalyst composed of ZSM-5 and Cu–Zn–Al shows an outstanding catalytic performance in the alkylation reaction of benzene with syngas.
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Affiliation(s)
- Bize Gao
- College of Chemistry & Chemical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- P. R. China
| | - Chuanmin Ding
- College of Chemistry & Chemical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- P. R. China
| | - Junwen Wang
- College of Chemistry & Chemical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- P. R. China
| | - Guangyue Ding
- College of Chemistry & Chemical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- P. R. China
| | - Jinxiang Dong
- College of Chemistry & Chemical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- P. R. China
| | - Hui Ge
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry of CAS
- Taiyuan 030001
- China
| | - Xuekuan Li
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry of CAS
- Taiyuan 030001
- China
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Hwang KS, Choi WJ, Kim JH, Lee JY. Preparation of hypercrosslinked poly(DVB-VBC) particles with high surface area and structured meso- and micropores. Macromol Res 2015. [DOI: 10.1007/s13233-015-3137-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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