摘要
以锰取代杂多硅钨酸盐β_2-K_8[SiW_(11)Mn(H_2O)O_(39)]·xH_2O作为活性组分,TiO_2作为载体,通过浸渍法制备了复合光催化剂β_2-SiW_(11)Mn/TiO_2。用FT-IR、UV-Vis、XRD、SEM和X射线光电子能谱对复合催化剂进行了表征。研究了纯二氧化钛TiO_2、杂多酸盐β_2-SiW_(11)Mn及制备的催化剂β_2-SiW_(11)Mn/TiO_2对结晶紫的催化降解性能。结果表明,相比于二氧化钛和杂多酸盐,复合光催化剂表现出更佳的光催化活性,杂多酸盐与二氧化钛产生了协同作用使结晶紫的降解率达90.19%。
The complex photocatalyst β2-SiW11Mn/TiO2 was prepared by dipping method with heteropoly tungstensilicate β2-Ks[SiW11Mn（H2O）O39]-xH20 as active component, and titanium dioxide as carrier. The photo- catalyst was characterized by FT-IR, UV-Vis, XRD, SEM and XPS. The photocatalytic degradation performance of pure TiO2, β2-SiW11Mn and obtained β2-SiW11Mn/TiO2 composite was investigated using crystal violet as model reactions. The results showed that the photocatalytic activity of β2-SiW11Mn/TiO2 composite was much higher than pure TiO2 and β2-SiW11Mn due to the synergy effect between β2-SiW11Mn and TiO2. The degradation rate of crystal violet was 90.19%.
出处
《印染助剂》
CAS
北大核心
2016年第10期4-8,共5页
Textile Auxiliaries
基金
黑龙江省教育厅资助基金(12531760)
关键词
杂多硅钨酸盐
二氧化钛
光催化
结晶紫
heteropoly tungstensilicate
titanium dioxide
photocatalytic
crystal violet
