摘要
为了提高二氧化钛对可见光的利用效率,采用等离子体电解方法对二氧化钛实现了C、N共掺杂.掺杂通过等离子体电解HCONH2、NaNO2、(NH2)2CO产生活性N、C实现.XPS结果表明,C、N掺杂进入了氧化钛晶格.紫外漫反射光谱分析表明,氧化钛对可见光(>400nm)的响应增强,其光催化降解能力也大大增强.C、N共掺杂TiO2是一种利用太阳能的理想的光催化剂.
To enhance the absorption in the visible region for TiO2, C and/or N doping of TiO2 nanotube was carried out by a novel method plasma electrolysis. The doping was achieved with active C and N produced from the plasma electrolysis of HCONH2, NaNO2, or （NH2）2CO. The results of XPS revealed that C and N were successfully doped into the lattice of TiO2. UV-Vis diffuse reflectance spectra showed a shift to longer wavelengths and an enhancement of the absorption in the visible region （〉400 nm） for the C, N-codoped TiO2, compared to the pure TiO2, C-doped TiO2 and N-doped TiO2. The C, N-codoped TiO2 showed the best photocatalytic activities for the degradation of methyl orange under visible light irradiation, and was a promising photocatalyst for utilizing the solar energy.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
2008年第7期1283-1286,共4页
Acta Physico-Chimica Sinica
基金
江苏省青年科学基金(BK2006545)
江苏教委科学基金资助项目
关键词
光催化
可见光
二氧化钛
共掺杂
Photocatalysis
Visible light
Titania
Codoping
