Wang, Fushuai1; Pan, Fei2; Yu, Shunyang2,3
; Pan, Dawei2,3; Zhang, Peiqing1; Wang, Ning2,3发表期刊APPLIED CLAY SCIENCE
ISSN0169-1317
2021-03-15
卷号203页码:10
关键词Gold nanoparticlesCovalent organic frameworkMicrospheresCatalytic reductionMethylene blue
DOI10.1016/j.clay.2021.106007
通讯作者Zhang, Peiqing(zhangpqytu@126.com); Wang, Ning(nwang@yic.ac.cn)
英文摘要Gold nanoparticles (Au NPs) supported by a covalent organic framework (COF) exhibited a remarkably catalytic performance towards organic pollutants, while the application is limited by the recovery and reuse from the mixture due to the size of Au NPs@COF at the nanoscale. Herein, Au NPs were in situ reduced on the surface of sulfhydryl groups functionalized new COF with NaBH4, followed by the deposition on polydopamine modified micron-sized porous spherical montmorillonite (SMt) to construct a spherical SMt@COF@Au NPs heterostructure. SMt was used here due to its excellent adsorption ability towards methylene blue (MB), increasing the concentration of MB near COF@Au NPs, thus accelerating the catalytic reaction. Hence, the optimized apparent reduction rate constant (Kapp) and turnover frequency (TOF) in our experiment could reach 8.32 min-1 and 3.2 ? 105 h-1, respectively, at 40 ?C and pH values of 10, which is much better than the reported. Furthermore, micro-sized SMt with self-sedimentary property could be easily recovered from the mixture without any devices involved. More importantly, the granular micro-sized morphology of the SMt-based heterostructure could facile transport on the product line and reduce the fouling, facilitating mass production COF@Au NPs based catalyst for application.
资助机构National Natural Science Foundation of China; Key Science and Technology Program of Yantai City; Shandong Key Laboratory of Coastal Environmental Processes, YICCAS
收录类别SCI
语种英语
研究领域[WOS]Chemistry; Materials Science; Mineralogy
WOS记录号WOS:000634126800005
引用统计被引频次：3[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/133337/27336
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
通讯作者Zhang, Peiqing; Wang, Ning作者单位1.Yantai Univ, Yantai 264005, Shandong, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res,Shandong Key Lab Coa, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Res Ctr Coastal Environm Engn & Technol Shandong, Yantai 264003, Shandong, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Megasci, 7 Nanhai Rd, Qingdao 266071, Peoples R China
推荐引用方式
GB/T 7714Wang, Fushuai,Pan, Fei,Yu, Shunyang,et al. Towards mass production of a spherical montmorillonite@covalent organic framework@gold nanoparticles heterostructure as a high-efficiency catalyst for reduction of methylene blue[J]. APPLIED CLAY SCIENCE,2021,203:10.
APAWang, Fushuai,Pan, Fei,Yu, Shunyang,Pan, Dawei,Zhang, Peiqing,&Wang, Ning.(2021).Towards mass production of a spherical montmorillonite@covalent organic framework@gold nanoparticles heterostructure as a high-efficiency catalyst for reduction of methylene blue.APPLIED CLAY SCIENCE,203,10.
MLAWang, Fushuai,et al."Towards mass production of a spherical montmorillonite@covalent organic framework@gold nanoparticles heterostructure as a high-efficiency catalyst for reduction of methylene blue".APPLIED CLAY SCIENCE 203(2021):10.
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