Wang, N; Zhang, ZR; Huang, JR; Hu, YX
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发表期刊CHEMICAL ENGINEERING SCIENCE
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ISSN0009-2509
2019-08-10
卷号203页码:312-320
关键词Cu ionsDopamineCatalytic reductionOrganic dyesColor removal
研究领域Engineering, Chemical
DOI10.1016/j.ces.2019.04.009
产权排序[Wang, Ning; Zhang, Zhongren] Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China; [Huang, Juanru; Hu, Yunxia] Tianjin Polytech Univ, State Key Lab Separat Membranes & Membrane Proc, Natl Ctr Int Res Membrane Sci & Technol, Sch Mat Sci & Engn, Tianjin 300387, Peoples R China
通讯作者Hu, Yunxia(yunxiahu@yic.ac.cn)
作者部门中国科学院海岸带环境过程重点实验室
英文摘要Metal-based catalysts present highly efficient catalytic activities towards organic dyes and their intermediates for color removal. However, several issues are needed to be addressed urgently for their large-scale practical applications, such as the cost, stability and recyclable use of these catalysts. In this work, we developed a facile approach to chelate Cu ions on the polydopamine-coated sand (Cu-PDA@Sand) and investigated their catalytic properties towards the decoloration of organic dyes or intermediate including 4-nitrophenol (4-NP), methylene blue (MB), and congo red (CR). Our results found that the copper ions from Cu-PDA@Sand were the mixture of Cu (I) and Cu (II), and the molar fraction of Cu (I) over Cu (II) was increased from the original 3:2 to 4:1 in the presence of NaBH4. The reduction of these organic dyes or intermediate followed the first order kinetics, and the apparent reduction rate k up of CR was larger than that of MB and 4-NP under similar conditions. Additionally, the optimized k up of 4-NP could reach to 1.28 min (1), which is much higher than the reported results from literature. The recyclability test of CuPDA@Sand showed that the reduction efficiency of Cu-PDA@Sand maintained 100% during the successive 20 cycles. Additionally, Cu-PDA@Sand was demonstrated to present long-term stability and catalytic activities after soaking Cu-PDA@Sand in water for 30 days. Our research demonstrated that the easy-prepared low-cost Cu-PDA@Sand catalyst would have a great potential in the practical applications for color removal of the dye-containing wastewater. (C) 2019 Elsevier Ltd. All rights reserved.
文章类型Article
资助机构National Natural Science Foundation of ChinaNational Natural Science Foundation of China [21476249]; Chang-jiang Scholars and Innovative Research Team in the University of Ministry of Education, China [IRT-17R80]; Program for Innovative Research Team in University of Tianjin [TD13-5044]; Science and Technology Plans of Tianjin [17PT-SYJC00060]; Key Science and Technology Program of Yantai City [2018ZHGY075]
收录类别SCI
语种英语
关键词[WOS]SITU GREEN SYNTHESIS; SILVER NANOPARTICLES; HIGHLY EFFICIENT; AZO-DYE; GOLD NANOPARTICLES; AQUEOUS-SOLUTIONS; HIGH-STABILITY; REDUCTION; REMOVAL; 4-NITROPHENOL
研究领域[WOS]Engineering, Chemical
WOS记录号WOS:000465363600026
引用统计被引频次:14[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/24883
专题中科院海岸带环境过程与生态修复重点实验室
中科院海岸带环境过程与生态修复重点实验室_海岸带环境工程技术研究与发展中心
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China;
2.Tianjin Polytech Univ, State Key Lab Separat Membranes & Membrane Proc, Natl Ctr Int Res Membrane Sci & Technol, Sch Mat Sci & Engn, Tianjin 300387, Peoples R China
推荐引用方式
GB/T 7714Wang, N,Zhang, ZR,Huang, JR,et al. Facile synthesis of copper ions chelated sand via dopamine chemistry for recyclable and sustainable catalysis[J]. CHEMICAL ENGINEERING SCIENCE,2019,203:312-320.
APAWang, N,Zhang, ZR,Huang, JR,&Hu, YX.(2019).Facile synthesis of copper ions chelated sand via dopamine chemistry for recyclable and sustainable catalysis.CHEMICAL ENGINEERING SCIENCE,203,312-320.
MLAWang, N,et al."Facile synthesis of copper ions chelated sand via dopamine chemistry for recyclable and sustainable catalysis".CHEMICAL ENGINEERING SCIENCE 203(2019):312-320.
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