title: Achieving significantly enhanced visible-light photocatalytic efficiency using a polyelectrolyte: the composites of exfoliated titania nanosheets, graphene, and poly(diallyl-dimethyl-ammonium chloride).
abstract: A high-performance visible-light-active photocatalyst is prepared using the polyelectrolyte/exfoliated titania nanosheet/graphene oxide (GO) precursor by flocculation followed by calcination. The polyelectrolyte poly(diallyl-dimethyl-ammonium chloride) serves not only as an effective binder to precipitate GO and titania nanosheets, but also boosts the overall performance of the catalyst significantly. Unlike most titania nanosheet-based catalysts reported in the literature, the composite absorbs light in the UV-Vis-NIR range. Its decomposition rate of methylene blue is 98% under visible light. This novel strategy of using a polymer to enhance the catalytic performance of titania nanosheet-based catalysts affords immense potential in designing and fabricating next-generation photocatalysts with high efficiency.
authors.affiliation: Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, P.R. China. an@cugb.edu.cn hhw@cugb.edu.cn zyh@cugb.edu.cn.
authors.forename: Qian
authors.initials: Q
authors.lastname: Zhang
authors.forename: Qi
authors.initials: Q
authors.lastname: An
authors.forename: Xinglong
authors.initials: X
authors.lastname: Luan
authors.forename: Hongwei
authors.initials: H
authors.lastname: Huang
authors.forename: Xiaowei
authors.initials: X
authors.lastname: Li
authors.forename: Zilin
authors.initials: Z
authors.lastname: Meng
authors.forename: Wangshu
authors.initials: W
authors.lastname: Tong
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Chen
authors.forename: Paul K
authors.initials: PK
authors.lastname: Chu
authors.forename: Yihe
authors.initials: Y
authors.lastname: Zhang