期刊
APPLIED CATALYSIS B-ENVIRONMENTAL
卷 162, 期 -, 页码 187-195出版社
ELSEVIER
DOI: 10.1016/j.apcatb.2014.06.052
关键词
Cuprous sulfide; Self-assembly; Superlattice; Scalable synthesis; Photocatalytic degradation
资金
- National Natural Foundation of China [11274066, 51172047, 50872145, 51102050]
- Ministry of Science and Technology of China (973 Project) [2013CB932901, 2009CB930803]
- Shanghai Municipal Education Commission
- Shanghai Education Development Foundation [09SG01]
Size- and shape-tunable Cu2S nanoparticles were successfully synthesized via a facile one-pot solvothermal process and appreciable yields at gram-scale were achieved in every single reaction. By meticulous observation with a high resolution transmission electron microscope, intensively existing atomic-level superlattice structures were identified and perceived as a result of the coexistence of both chalcocite and chalcocite-M phase in as-obtained Cu2S nanoparticles. Further, 3D ordered self-assemblies of pristine Cu2S nanoparticles were obtained by introducing the polar solvent, ethanol, into the non-polar colloidal dispersion systems during the post-treatment process, and thereby the double-superlattice (DSL) nanoparticle systems consisted of both atomic- and particle-level superlattice structures were achieved. And as promising photocatalysts, although the photocatalytic activity was influenced mutually by the size, shape, crystallinity, atomic-level superlattice structures of pristine Cu2S nanoparticles and their self-assembling behavior, the novel structured DSL nanoparticle systems finally demonstrated highly enhanced photocatalytic efficiency towards the degradation of methylene blue. (C) 2014 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据