Anatase and futile Nanocrystal TiO2 was prepared by sol-gel and solvothermal synthetic method using tetrabutyl titanate as titanium source, and the catalyst characterized by Wide-angle X-ray powder diffraction(XRD). The effects of catalyst crystal form and HPAM concentration has been investigated: anatase TiO2 has better photocatalytic performance, the photocatalytic reaction could be promoted by optimal catalyst concentration and inhibited by higher HPAM concentration.%以钛酸四丁酯为钛源,采用溶胶.凝胶法制备、表征了锐钛矿型和金红石型的纳米二氧化钛:将其用于聚丙烯酰胺光催化降解,考察了催化剂晶型、催化剂浓度以及聚丙烯酰胺对光降解性能的影响,结果表明:锐钛矿晶型催化剂具有更好的催化能力:适宜的催化剂浓度有利于光催化反应的进行,HPAM浓度增加对光催化反应存在抑制作用。
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