Microwave hydrothermal synthesized ZnIn-layered double hydroxides derived ZnIn-layered double oxides for enhanced methylene blue photodegradation

Xiaoxiao Liu,Qian Shao,Yufei Zhang,Xiaojing Wang,Jing Lin,Yuanfa Gan,Mengyao Dong,Zhanhu Guo

Published 2020 in Colloids and Surfaces A: Physicochemical and Engineering Aspects

ABSTRACT

Abstract The ZnIn-layered double hydroxides (ZnIn-LDHs) were synthesized by microwave hydrothermal method and used as the precursors to prepare the ZnIn-layered double oxides (ZnIn-LDOs) by the controllable calcination. The ZnIn-LDOs were aggregated by porous sheet materials, and the particle size was about 50 nm. The photocatalytic studies showed that the optimum molar ratio of Zn2+/ In3+ was 3:1 and the optimum calcination temperature was 600 °C. The photocatalytic degradation of MB by the as-prepared ZnIn-LDOs photocatalysts reached an efficiency of 98 % after irradiation under the simulated sunlight for 120 min. Radial trapping experimental results indicated that the main reactive specie for MB removal in the degradation processes was h+.

PUBLICATION RECORD

  • Publication year

    2020

  • Venue

    Colloids and Surfaces A: Physicochemical and Engineering Aspects

  • Publication date

    2020-05-05

  • Fields of study

    Materials Science, Chemistry, Environmental Science

  • Identifiers
  • External record

    Open on Semantic Scholar

  • Source metadata

    Semantic Scholar

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