Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 270, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apcatb.2020.118882
Keywords
Metal organic framework; CdIn2S4; Photocatalysis; UiO-66; Water splitting; Triclosan
Funding
- Council of Scientific and Industrial Research (CSIR), New Delhi [01(2947)/18/EMR-II]
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Construction of porous heterostructure photocatalyst material with improved surface and optoelectrical properties is a practical and effective strategy for mineralization of toxic organic pollutants and water splitting reaction under visible light irradiation. Herein, we have developed a facile hydrothermal route to prepare a series of novel UiO-66/CdIn2S4 heterojunction nanocomposite materials containing finely dispersed UiO-66 spherical nanoparticles (20-40 nm) anchored over high aspect ratio CdIn2S4 nanosheets. Comprehensive characterization of the UiO-66/CdIn2S4 nanocomposites revealed a hierarchical 3D microflower structure with enhanced surface reactive sites, better channelization of charge carriers, high resistance to charge recombination and a favorable band alignment between the two semiconductor components. The optimal photocatalyst (30UiO-66/CdIn2S4) showed improved photocatalytic efficiency towards triclosan degradation with rate constant (0.0094 min(-1)) twelve times higher than the pure CdIn2S4 (0.0007 min(-1)). The 30UiO-66/CdIn2S4 photocatalyst also exhibited higher H-2 evolution rate (2.95 mmolg(-1) h(-1)) with apparent conversion efficiency of 20.8 %.
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