Abstract:Methylene blue has the characteristics of bright color, high fixing rate and good color fastness, and it has become the fastest growing dye. However, a large amount of waste water is generated during use, which is difficult to biodegrade. Aminated nano-titanium dioxide was prepared by using tetraethyl titanate and 3-aminopropyltrimethoxysilane as raw materials, and then the prepared titanium dioxide was treated with 2% (mass percent) silver nitrate solution to prepare silver-coated nano-titanium dioxide A, B and C. The obtained titanium dioxide was characterized by infrared spectroscopy, and the photocatalytic degradation properties were examined by methylene blue solution. The results show that the silver-coated nano-titanium dioxide B has the best degradation effect on methylene blue, the degradation rate is above 95%, which can fully meet the requirments of industrialized continuous treatment of wastewater.
收稿日期: 2018-07-19
出版日期: 2018-10-12
通讯作者:
吕芳
E-mail: gzyzzwzw123@163.com
引用本文:
吕 芳,郭立达. 废水处理中的银包覆纳米二氧化钛及其光催化降解亚甲基蓝的研究[J]. , 2018, 28(05): 21-25.
Lü Fang,GUO Li-da. Silver-coated nano-titanium dioxide in wastewater treatment and its photocatalytic degradation of methylene blue. , 2018, 28(05): 21-25.