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Hydrothermal Synthesis and E cient Visible Light Photocatalytic Properties of InVO4 Hierarchical Microspheres and InVO4 Nanowires
Xue Lin*1, Shi-duo Zhao2, Xiao-yu Guo2, Xin Gao2, Jiu-jing Shi2, Yi-li Liu2, Hong-ju Zhai1, Qing-wei Wang*2
1.Key Laboratory of Preparation and Application of Environmentally Friendly Materials, Ministry of Education, Jilin Normal University, Siping 136000, China;2.College of Chemistry, Jilin Normal University, Siping 136000, China
Abstract:
In this work, InVO4 hierarchical microspheres and InVO4 nanowires were successfully syn-thesized by a facile hydrothermal method. Field emission scanning electron microscopy showed that InVO4 crystals can be fabricated in different morphologies by simply manipu-lating the reaction parameters of hydrothermal process. The as-prepared InVO4 photocat-alysts exhibited higher photocatalytic activities in the degradation of rhodamine B under visible-light irradiation (λ>420 nm) compared with commercial P25 TiO2. Furthermore, the as-synthesized InVO4 hierarchical microspheres showed higher photocatalytic activity than that of InVO4 nanowires. Up to 100% Rh B (3μmol/L) was decolorized after visible-light irradiation for 40 min. In addition, the reason for the di erence in the photocatalytic activ-ities for InVO4 hierarchical microspheres and InVO4 nanowires was studied based on their structures and morphologies.
Key words:  Photocatalysis, InVO4, Nanowires, Microspheres, Visible-light irradiation
FundProject:
钒酸铟分级结构微米花和纳米线的水热合成和可见光催化性能
林雪*1, 赵世铎2, 郭晓宇2, 高新2, 史久静2, 刘怡丽2, 翟宏菊1, 王庆伟*2
1.吉林师范大学环境友好材料制备与应用教育部重点实验室,四平136000;2.吉林师范大学化学学院,四平136000
摘要:
采用水热法合成InVO4分级结构微米花和InVO4纳米线.FESEM结果表明, 通过控制水热反应参数可以获得不同形貌InVO4晶体.利用可见光(λ>420 nm)照射下的罗丹明B降解实验评价了InVO4样品的光催化性能.结果表明,InVO4的光催化活性比商用P25 TiO2高得多,其中花状InVO4纳米结构光催化效率最高,经可见光照射40 min,罗丹明
关键词:  光催化剂,钒酸铟,纳米线,微米花,可见光照射
DOI:10.1063/1674-0068/27/04/428-432
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