纳米二氧化钛光催化降解聚丙烯酰胺催化性能研究

The Research of Photocatalytic Degradation Polyacrylamide Influence Factors In The Presence Of Nano-TiO_2

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。

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.