【摘 要】
：
该文总结了国内外光催化降解有机物的研究状况.并以四异丁酯钛为原料,用溶胶-凝胶法制备超细二氧化钛,并利用X射线衍射（XRD）、透射电镜（TEM）和BET比表面测定法对催化剂进行了表征
论文部分内容阅读
该文总结了国内外光催化降解有机物的研究状况.并以四异丁酯钛为原料,用溶胶-凝胶法制备超细二氧化钛,并利用X射线衍射（XRD）、透射电镜（TEM）和BET比表面测定法对催化剂进行了表征.结果表明：所制备的催化剂85﹪为锐钛型结构,平均粒径40nm,比表面积为45m<2>/g.同时,研究了以上述超细二氧化钛作为光催化剂催化降解久效磷的可行性.实验研究了以中压汞灯照射下不同反应时间、光催化剂用量、久效磷的初始浓度及初始pH值对久效磷光催化降解的影响.实验进一步研究了电子接受体H<,2>O<,2>和加入三阶铁离子后对久效磷光解的影响.
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