摘要
研究碱处理对TiO2 表面形貌和光催化性能的影响。经碱处理后 ,TiO2 表面变得粗糙 ,比表面积增加 ,同时表面羟基减少 ,其光催化性能明显提高。研究结果表明 ,以 5mol/LNaOH处理二氧化钛 6h后 ,TiO2 甲基紫光催化降解速率可提高 32 .6 %。
Titanium dioxide is an amphiprotic compound and acidulous. Therefore, it can react with alkali. Treaed with alkali,the surface of titanium dioxide became coarse and the specific surface area was increased, surface hydroxy group was decreased,and the photocatalysis of titanium dioxide was improved obviously. It was shown that the higher photocatalysis was observed after treatment with 5?mol/L NaOH for 6?h.
出处
《济南大学学报（自然科学版）》
CAS
2003年第3期224-226,共3页
Journal of University of Jinan(Science and Technology)
基金
山东省自然科学基金重点项目 (Z2 0 0 0B0 1)
关键词
二氧化钛
碱处理
光催化性
titanium dioxide
treatment with alkali
photocatalysis
