Xiao, Fengyan; Qin, Yawei; Wang, Ning; Pan, Dawei
发表期刊APPLIED CLAY SCIENCE
ISSN0169-1317
2018-12-15
卷号166页码:74-79
关键词Au nanoparticlesMontmorilloniteSpherical microspheresCatalyst4-nitrophenol
研究领域Chemistry; Materials Science; Mineralogy
DOI10.1016/j.clay.2018.09.016
产权排序[Xiao, Fengyan; Wang, Ning; Pan, Dawei] Chinese Acad Sci, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Res Ctr Coastal Environm Engn & Technol Shandong, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China; [Xiao, Fengyan] Henkel Loctite China Co Ltd, Yantai, Shandong, Peoples R China; [Qin, Yawei] Chinese Acad Sci, Inst Chem, CAS Key Lab Engn Plast, Beijing 100190, Peoples R China
作者部门海岸带环境工程技术研究与发展中心
英文摘要Noble metals supported on substrates have been proven as highly efficient catalysts for the reduction of nitro-compounds. However, their large-scale applications are still limited by the problems of fouling and transport during the mass production process. Herein, we first fabricated a spherical montmorillonite (Mt) substrate via spray drying technique, followed by the deposition of Au NPs through polydopamine chemistry to synthesize spherical Au nanoparticles supported Mt (Au@Mt) microspheres. The Au loading is 14.5 wt%, whereas the specific surface area of the Au@Mt microspheres is 47.3 m(2) g(-1), endowing the prepared Au@Mt microspheres with excellent catalytic activity to the reduction of 4-nitrophenol (4-NP) in the presence of NaBH4 with the optimized apparent reduction rate constant higher than 1.05 min(-1). Furthermore, the microspheres can be easily recycled with self-sedimentation without any devices involved and showed excellent stability and recyclability for at least 20 cycles without almost unchanged spherical morphology and catalytic performance. Our straightforward strategy to solve the issue of the mass production process through granulation of amorphous nanomaterial substrate facilitates the practical application of these catalysts in the reduction of nitro-compounds.
文章类型Article
资助机构National Natural Science Foundation of China [51703110]; Key Research and Development Program of Shandong Province [2016ZDJS04B03]; Key Science and Technology Program of Yantai City [2018ZHGY075]
收录类别SCI
语种英语
关键词[WOS]POLYDOPAMINE-FUNCTIONALIZED GRAPHENE; METAL-ORGANIC FRAMEWORKS; GOLD NANOPARTICLES; GREEN SYNTHESIS; METHYLENE-BLUE; PERFORMANCE; FABRICATION; MECHANISM; OXIDATION; GROWTH
研究领域[WOS]Chemistry, Physical; Materials Science, Multidisciplinary; Mineralogy
WOS记录号WOS:000449135300008
引用统计被引频次：12[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/133337/24604
专题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, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Res Ctr Coastal Environm Engn & Technol Shandong, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China;
2.Henkel Loctite China Co Ltd, Yantai, Shandong, Peoples R China;
3.Chinese Acad Sci, Inst Chem, CAS Key Lab Engn Plast, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714Xiao, Fengyan,Qin, Yawei,Wang, Ning,et al. Towards mass production of Au nanoparticles supported on montmorillonite microspheres for catalytic reduction of 4-nitrophenol[J]. APPLIED CLAY SCIENCE,2018,166:74-79.
APAXiao, Fengyan,Qin, Yawei,Wang, Ning,&Pan, Dawei.(2018).Towards mass production of Au nanoparticles supported on montmorillonite microspheres for catalytic reduction of 4-nitrophenol.APPLIED CLAY SCIENCE,166,74-79.
MLAXiao, Fengyan,et al."Towards mass production of Au nanoparticles supported on montmorillonite microspheres for catalytic reduction of 4-nitrophenol".APPLIED CLAY SCIENCE 166(2018):74-79.
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