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  • Title: Hierarchical CdIn2S4 microspheres wrapped by mesoporous g-C3N4 ultrathin nanosheets with enhanced visible light driven photocatalytic reduction activity.
    Author: Chen W, Huang T, Hua YX, Liu TY, Liu XH, Chen SM.
    Journal: J Hazard Mater; 2016 Dec 15; 320():529-538. PubMed ID: 27597153.
    Abstract:
    In this investigation, a series of hierarchical CdIn2S4/g-C3N4 nanocomposites were firstly synthesized by a facile one-pot hydrothermal strategy, wherein the mesoporous g-C3N4 nanosheets were in-situ self-wrapped onto CdIn2S4 nanosheets. Systematic characterization by XRD, FT-IR, UV-vis DRS, SEM, TEM, HAAF-STEM, XPS, photoelectrochemical tests were employed to analyze the phase structure, chemical composition, morphology and photocatalytic mechanism. The application, including photo-redox reaction and photocatalytic water splitting, were used to estimate the photocatalytic activity of as-obtained CdIn2S4/g-C3N4 nanocomposites. The results indicate that CdIn2S4/g-C3N4 heterostructures exhibit more efficient improvement of the photocatalytic performances towards photo-reduction of 4-NA to corresponding 4-PDA and photocatalytic H2 generation from water splitting than these counterparts as results of construction of intimate interfacial contact, which would promote the separation of photo-generated holes and electrons. Meanwhile, benefitting from the excellent surface wrap, the CdIn2S4/g-C3N4 nanocomposites possess notable enhanced photocatalytic stability. This research may provide a promising way to fabricate highly efficient photocatalysts with excellent stability and expand the application of CdIn2S4 in fine chemical engineering.
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