In situ surface assembly of core-shell TiO2-copper(I) cluster nanocomposites for visible-light photocatalytic reduction of Cr(VI)

Wei Ji, Jian Qu, Cheng An Li, Jing Wei Wu, Su Jing, Fei Gao, Yi Nong Lv, Chang Liu, Dun Ru Zhu, Xiao Min Ren, Wei Huang

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

1D loop chain copper(I) cluster, [Cu2I2L2]n, can be obtained based upon 9-(3-phenylselanyl-2-phenylselanylmethylpropyl)anthracene (L) and CuI. A facile in situ surface assembly strategy was designed to construct polymeric [Cu2I2L2]non the surface of TiO2nanoparticles. The visible-light photocatalytic property of core-shell TiO2-[Cu2I2L2]nwas confirmed by effective reduction of aqueous chromium(VI), showing a clear correlation to optical absorption (Eg = 2.8 eV). The key points of this strategy include high reactivity between copper(I) and soft selenium atom, efficient charge-transfer through polymeric cluster shell, and visible-light photoactivity of copper(I) halogen clusters.

Original languageEnglish
Pages (from-to)368-375
Number of pages8
JournalApplied Catalysis B: Environmental
Volume205
DOIs
StatePublished - 2017
Externally publishedYes

Keywords

  • Charge-transfer complex
  • Polymeric [CuIL]cluster
  • Selenoanthracene
  • TiO
  • Visible-light photocatalyst

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