期刊论文

中文

农药学学报

1008-7303

2015

17

3

327-333

10.3969/j.issn.1008-7303.2015.03.12

湖南农业大学***科学基金（12YJ13）.

本校为第一机构

采用溶胶-凝胶法制备了二氧化钛/多壁碳纳米管(TiO_2/MWCNTs)复合材料,其m(TiO_2)∶m(MWCNTs)=3∶4、表面平均孔径为5.724 nm。选用该复合材料对乐果进行光催化降解试验,探讨不同光源及光照时间、乐果初始浓度、复合材料添加量、温度等对其光催化降解能力的影响。结果表明:乐果在25℃、紫外光照30 min、初始质量浓度为5 mg/L和TiO_2/MWCNTs复合材料添加量为0.25 g/L条件下的降解率为80.7%,TiO_2/MWCNTs复合材料的最大吸附量为16.15 mg/g;在其他条件相同,仅将紫外光改为自然光条件下,乐果的催化降解率为79.2%,与紫外光下的催化降解率相差不大;而同等条件下,Ti O_2对乐果在紫外光下的催化降解率比...

Titanium dioxide/multi-walled carbon nanotubes （TiO2/MWCNTs） was prepared by sol- gel method, with the quality ratio of 3：4 and the surface average pore size of 5.724 nm. This composite materials were then applied in the photocatalytic degradation of dimethoate. A series of affecting factors were studied, including the difference of light sources, the illumination time, the initial concentration of dimethoate, the adding quantity of composite materials, the solution temperature, etc. The results showed that the degradation rate of dimethoate...