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Towards mass production of a spherical montmorillonite@covalent organic framework@gold nanoparticles heterostructure as a high-efficiency catalyst for reduction of methylene blue

文献类型：期刊论文

作者Wang, Fushuai1; Pan, Fei3; Yu, Shunyang2,3; Pan, Dawei2,3; Zhang, Peiqing1; Wang, Ning2,3
刊名APPLIED CLAY SCIENCE
出版日期2021-03-15
卷号203页码:10
ISSN号0169-1317
关键词Gold nanoparticles Covalent organic framework Microspheres Catalytic reduction Methylene 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.
资助项目National Natural Science Foundation of China[51903247] ; Key Science and Technology Program of Yantai City[2018ZHGY075] ; Key Science and Technology Program of Yantai City[2019XDHZ093] ; Shandong Key Laboratory of Coastal Environmental Processes, YICCAS[2019SDHADKFJJ15]
WOS研究方向Chemistry ; Materials Science ; Mineralogy
语种英语
WOS记录号WOS:000634126800005
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
源URL[http://ir.yic.ac.cn/handle/133337/27335]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
烟台海岸带研究所_山东省海岸带环境工程技术研究中心
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, Ctr Ocean Megasci, 7 Nanhai Rd, Qingdao 266071, Peoples R China
3.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
推荐引用方式
GB/T 7714		 Wang, 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.
APA Wang, 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.
MLA Wang, 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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来源：烟台海岸带研究所

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