A novel microporous amorphous-ZnO@TiO2/graphene ternary nanocomposite with enhanced photocatalytic activity

Si Yao Guo, Jianguo Dai, Tie Jun Zhao, Shuai Dong Hou, Peng Zhang, Peng Gang Wang, Guo Xing Sun

Research output: Journal article publicationJournal articleAcademic researchpeer-review

8 Citations (Scopus)

Abstract

Rational design and synthesis of graphene-based photoactive heterostructures is in great demand for various applications. Herein, a novel microporous amorphous-ZnO@TiO2/graphene heterostructure was developed via a facile approach for the first time. This heterostructure possesses excellent characteristics such as high surface area (336 m2g-1), excellent mobility of charge carriers, and enhanced photocatalytic activity. The higher photocatalytic activity of the developed novel microporous amorphous-ZnO@TiO2/graphene hybrid was demonstrated through the degradation of water pollutants, MB and RhB. The mechanistic analysis result shows that the numerous unsaturated sites on the surface of amorphous-ZnO@TiO2facilitate the separation of photogenerated electrons and holes, and graphene mainly acts as an electron transfer bridge. The combination of amorphous-ZnO@TiO2and graphene constructs a new class of photocatalysts and also has a synergistic effect on improving the photocatalytic activity. The resultant amorphous-ZnO@TiO2/graphene ternary nanocomposite as a novel high performance photocatalyst is of a great potential for water pollution treatment due to its high catalytic activity, low cost, long-term stability, and easy recovery.
Original languageEnglish
Pages (from-to)36787-36792
Number of pages6
JournalRSC Advances
Volume7
Issue number58
DOIs
Publication statusPublished - 1 Jan 2017

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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