摘要
以漂珠为载体,采用溶胶-凝胶法制备TiO2/漂珠,用浸渍法制得磷钨酸修饰的复合光催化剂H3PW12O40/TiO2/漂珠.紫外-可见漫反射光谱显示该产品的光响应强度提高.光催化降解茜素红试验结果表明,在pH值为4～5,茜素红的初始质量浓度为7.5 mg/L,光催化剂投加量为0.08 g/100 mL[水],250W紫外光照射的条件下,90 min内底物的脱色率达到50％以上.
TiO2/float pearls was prepared by solgel method with float pearls as the carrier. Phospho tungstie acid modifiedcompound photocatalyst H3PW12Ono/TiOJfloat pearls was prepared by dipping method. UVVis DRS showed that, the photoresponse of the product was enhanced. The results of alizarin red photo catalytic decolorization experiment showed that, when the pH value was 4 - 5, the initial mass concentration of alizarin red was 7.5 mg/L, the photocatalyst dosage was 0.08 g/100 mL[water], under the irradiation of 250 W UV light, the decoloration rate of the substrate reached above 50% in 90 min.
出处
《工业用水与废水》
CAS
2013年第6期46-48,61,共4页
Industrial Water & Wastewater
基金
河南省科技计划重点项目(102102310298)
河南省教育厅科学技术研究重点项目指导计划(12B60008)
关键词
漂珠
TIO2
磷钨酸
光催化
茜素红
float perals
TiO2
phosphotungstic acid
photocatalysis
alizarin red
