Abstract
In2.77S4 nanosheets with the band gap energy of 1.75 eV were fast prepared via a hydrothermal process. The structure, morphology and optical properties of the as-prepared samples were characterized by X-ray diffraction, transmission electron microscopy and UV–vis diffuse reflectance spectroscopy, respectively. Rhodamine B, methyl orange and potassium dichromate solution were used to evaluate the degradation efficiency of the as-prepared samples under the visible light, respectively. Experimental results showed that the molar ratio of thioacetamide to indium nitrate hydrate significantly influenced the structure and properties of the as-prepared products. With increasing the molar ratio, the degradation efficiency of rhodamine B solution was firstly increased and then decreased. When the molar ratio was 4:1, the degradation efficiency of the as-prepared sample reached to 96% in 3 min and 100% in 9 min. Moreover, this semiconductor could degrade 88% of methyl orange solution in 30 min and 87% of potassium dichromate solution in 60 min, respectively.
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Acknowledgements
Authors gratefully acknowledge the financial support from Youth Science and Technology Foundation of Higher Education Institutions of Hebei Province, China (Grant No. Q2012111) and Natural Science Foundation of Hebei Province, China (Grant No. E2013210011). The authors declare that they have no conflict of interest.
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Wu, Xf., Li, H., Sun, Y. et al. One-step hydrothermal synthesis of In2.77S4 nanosheets with efficient photocatalytic activity under visible light. Appl. Phys. A 123, 426 (2017). https://doi.org/10.1007/s00339-017-1016-0
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DOI: https://doi.org/10.1007/s00339-017-1016-0