摘要
由于半导体光催化技术是利用丰富清洁的太阳能解决环境污染的可行措施之一,α-Fe_(2)O_(3)作为常见的窄带隙n型半导体被广泛应用于光催化各个领域。有机共轭半导体材料因具有化学结构及合成方法多样、能带结构和电子结构可调等特点受到广大研究者的关注。利用糠醇与α-Fe_(2)O_(3)通过原位酸催化聚合-热处理成功制备了具有较高光催化降解活性的纳米复合材料。实验结果表明:当α-Fe_(2)O_(3)含量为45.26%时复合催化剂的催化活性、稳定性能最好,80 min就可使MB的脱色率达到100%,反复3次实验对于MB的脱色率仍然可以达到75%以上。
Semiconductor photocatalysis technology is one of the feasible measures to use abundant and clean solar energy to solve environmental pollution.α-Fe_(2)O_(3),as a common narrow band gap N-type semiconductor,has been widely used in various fields of photocatalysis.Organic conjugated semiconductor materials have attracted the researchers'attention because of their various chemical structures and synthetic methods,adjustable energy band structures and electronic structures.In this study,furfuryl alcohol andα-Fe_(2)O_(3) were successfully synthesized by in situ acid catalytic polymerization-heat treatment nanocomposites with high photocatalytic degradation activity.The experimental results show that the catalytic activity and stability of the composite catalyst are the best whenα-Fe_(2)O_(3) content is 45.26%.The decolorization rate of MB can reach 100%in 80 min,and the decolorization rate of MB can still reach more than 75%after three repeated experiments.
作者
赵丽
苏碧桃
Zhao Li;Su Bitao(Northwest Normal University,Lanzhou,Gansu 730070,China;Jiuquan Vocational and Technical College,Jiuquan,Gansu 735000,China)
出处
《绿色科技》
2022年第20期72-75,共4页
Journal of Green Science and Technology
基金
2022年甘肃省高等学校创新基金项目(编号:2022B-481)
2021年甘肃省高校课程思政示范项目(编号:GSkcsz-2021-069)
教育部行业职业教育教学指导委员会(编号:HBKc213011)。
关键词
半导体
聚合物
光催化
降解
semiconductor
polymer
photocatalytic
degradation
