Enhanced Photocatalytic Oxidation of Isopropanol by HKUST-1@TiO2 Core-Shell Structure with Ultrathin Anatase Porous Shell: Toxic Intermediate Control

Hongmei Wang, Tao Yu, Xin Tan, Huabin Zhang, Peng Li, Huimin Liu, Li Shi, Xiangli Li, Jinhua Ye

Research output: Contribution to journalArticlepeer-review

64 Scopus citations

Abstract

Poor adsorption of reactants and intermediates as well as low mineralization rate greatly restrict the application of common semiconductor photocatalyst TiO2 for air purification. A plausible solution would be to integrate metal-organic frameworks (MOFs) materials with good gas adsorption property with traditional photocatalytic material TiO2 with exciton generation. A core-shell structured photocatalyst with functional MOFs HKUST-1 (Cu3(BTC)2, BTC = 1,3,5 benzenetricarboxylate) as core and porous ultrathin anatase film as shell was synthesized. The composite photocatalyst was characterized in detail, and isopropanol degradation experiments were performed to evaluate the photocatalytic performances. The experimental results revealed that HKUST-1 can provide a special pathway for photogenerated electrons migration and thus restrain the recombination of electrons and holes to increase the photocatalytic efficiency. Furthermore, the capture of reactants and intermediates was also enhanced due to the unique MOFs-TiO2 composite structure, and the mineralization rate had been markedly enhanced.
Original languageEnglish (US)
Pages (from-to)8096-8103
Number of pages8
JournalIndustrial and Engineering Chemistry Research
Volume55
Issue number29
DOIs
StatePublished - Jul 27 2016
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2022-09-15

ASJC Scopus subject areas

  • General Chemical Engineering
  • General Chemistry
  • Industrial and Manufacturing Engineering

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