In2O3 microspheres decorated with ZnIn2S4 nanosheets as core-shell hybrids for boosting visible-light photodegradation of organic dyes
Open Access
- 1 February 2021
- journal article
- research article
- Published by IOP Publishing in Materials Research Express
- Vol. 8 (2), 025505
- https://doi.org/10.1088/2053-1591/abe2e2
Abstract
In this work, we firstly report the development of ZnIn2S4 nanosheets decorating In2O3 microspheres with core–shell structure by an in situ synthetic process, which is proved to be an effective method to construct promising semiconductor photocatalysts for photodegradation of methyl blue (MB) under visible-light conditions. Under visible-light illumination, the 2D/3D ZnIn2S4 nanosheet/In2O3 microsphere hybrids exhibit excellent enhancing photoactivity than that of pristine In2O3, The effect of ZnIn2S4 substitution on photoactivity was also investigated for comparative experiments and it was found that the optimized ZnIn2S4/In2O3-1:1 hybrid exhibits the highest photoactivity of 84.5%. The experimental results indicated that the reputably photocatalytic performance of ZnIn2S4/In2O3 can be attributed to the synergistic effect of efficient separation of photo-generated electron-hole pairs, extended visible-light response range, and the improved specific surface area. Furthermore, the roles of OH, and h+ during the photodegradation process were studied to deduce the possible degradation mechanism. This work provides an effective strategy to construct the In2O3-based photocatalytic systems for efficient photodegradation of organic pollutants, which would be significant for the design of more In2O3-based systems for promising photocatalytic applications.Keywords
Funding Information
- Foundation of Jiangxi Educational (GJJ180596)
- National Natural Science Foundation of China (41763020)
- Natural Science Foundation of Jiangxi Province (20171BAB206008)
This publication has 30 references indexed in Scilit:
- Improvement of photocatalytic activity of surfactant modified In2O3 towards environmental remediationNew Journal of Chemistry, 2018
- One step synthesis of P-doped g-C 3 N 4 with the enhanced visible light photocatalytic activityApplied Surface Science, 2018
- Dimensional heterostructures of 1D CdS/2D ZnIn2S4 composited with 2D graphene: designed synthesis and superior photocatalytic performanceDalton Transactions, 2017
- Fabrication of novel CuWO 4 hollow microsphere photocatalyst for dye degradation under visible-light irradiationMaterials Letters, 2016
- Controlled synthesis of yttrium gallium garnet spherical nanostructures modified by silver oxide nanoparticles for enhanced photocatalytic propertiesCrystEngComm, 2016
- The fabrication of In2O3/In2S3/Ag nanocubes for efficient photoelectrochemical water splittingPhysical Chemistry Chemical Physics, 2015
- Photocatalytic degradation of methyl blue using Fe 2 O 3 /TiO 2 composite ceramicsJournal of Alloys and Compounds, 2015
- TiO2 Microspheres with Controllable Surface Area and Porosity for Enhanced Light Harvesting and Electrolyte Diffusion in Dye‐Sensitized Solar CellsAdvanced Functional Materials, 2015
- Super adsorption capability from amorphousization of metal oxide nanoparticles for dye removalScientific Reports, 2015
- In2O3 Hollow Microspheres: Synthesis from Designed In(OH)3 Precursors and Applications in Gas Sensors and PhotocatalysisLangmuir, 2006