WO3 nanocubes: Hydrothermal synthesis, growth mechanism, and photocatalytic performance

被引：0
作者：
Lili Wang
Hanmei Hu
Junchan Xu
Sane Zhu
Aiqin Ding
Chonghai Deng
机构：
[1] Hefei University,Department of Chemical and Materials Engineering
[2] Anhui Jianzhu University,Key Laboratory of Functional Molecule Design and Interface Process
来源：
Journal of Materials Research | 2019年 / 34卷
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摘要：
Regular WO3 nanocubes have been prepared on a large scale through a convenient hydrothermal route at the temperature of 200 °C. The products were characterized by powder X-ray diffraction (XRD), field-emission scanning electron microscopy, UV-vis diffuse reflectance spectroscopy (DRS), and photoluminescence (PL) spectroscopy. A crystal growth process for WO3 nanocubes was simply proposed based on the comparative experiments. The band gap energy (Eg) was determined to be 2.58 eV based on the UV-vis DRS analysis, and the PL spectrum exhibited a strong blue light emission band centered at 469 nm. The as-prepared WO3 nanocubes showed higher visible light photocatalytic performance for degrading rhodamine B compared with WO3·H2O and WO3·0.33H2O/WO3 which were obtained at 80 °C and 140 °C, respectively, suggesting potential application in the region of wastewater purification.
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页码：2955 / 2963
页数：8
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