摘要
以泡沫镍为载体,钛酸四丁酯(TBOT)、硝酸镧、尿素为原料,采用溶胶-凝胶法合成了N掺杂、La掺杂和La-N共掺杂的TiO2光催化剂。利用X射线衍射(XRD)、红外光谱(FT-IR)、拉曼光谱(Raman)等技术手段对催化剂进行表征,结果表明,La和N的掺杂改变了催化剂的结构形态。以反渗透浓缩渗滤液为目标降解物的光催化试验表明,La-N共掺杂的TiO2其催化性能得到了显著提高。
La-N co-doped, La doped and N doped TiO2 photocatalysts are prepared by sol-gel method with tetrabutyl titanate,lanthanum nitrate and urea as raw materials and nickel foam substrates as supports. The photoeatalyst is characterized by X-ray diffraction （XRD） ,Fourier transform infrared spectroscopy （FT-IR） and Roman spectra. It shows that the doping of La and N changes the structural form of the catalyst. The degradation of landfill leachate is investigated as a model reaction to study photocatalytie activity of different catalysts. The result show that the photocatalytie activity of La-N co-doped TiO2 is significantly improved.
出处
《现代化工》
CAS
CSCD
北大核心
2012年第9期50-52,共3页
Modern Chemical Industry
基金
广州市重大科技项目(2008DLB2080500)
