文章基本信息

标题：Highly-dispersed Boron-doped Graphene Nanosheets Loaded with TiO₂ Nanoparticles for Enhancing CO₂ Photoreduction
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作者：Mingyang Xing ; Fan Shen ; Bocheng Qiu 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2014
卷号：4
DOI：10.1038/srep06341
出版社：Springer Nature
摘要：Boron doped graphene nanosheets (B-GR) as a p-type semiconductor, provides much more edges to facilitate the loading of TiO₂ nanoparticles (P25). Highly-dispersed P25/B-GR nanosheets with the size of 20-50 nm, are successfully synthesized by the vacuum activation and ultraphonic method. The nanosized morphology can decrease the local density of defects which are induced by the boron substitutional doping, and make the B-GR keeping excellent conductivity and p-type transport property. Ti-O-C bonds are formed during the mixing process, which could efficiently transfer the electrons from TiO₂ to B-GR and the holes from B-GR to TiO₂. The tunable bandgap of B-GR determines the large potential application of P25/B-GR in the photoreduction of CO₂ and other gaseous organic pollutants.