摘要
采用并流沉淀法制备了新型可见光催化剂FeAsO_4。通过紫外-可见漫反射光谱得知,它能吸收400~500 nm之间的可见光。通过可见光光催化降解罗丹明B评价了该光催化剂的光催化活性,其结果表明,它具有高的光催化活性,能在40~50 min内就将罗丹明B基本降解完全,这主要归因于在光催化降解过程中,FeAsO_4的光催化与罗丹明B分子自身敏化的共同作用。
A novel visible- light- responsive photocatalyst FeAsO_4 was prepared by co- precipitation method. The results of UV- visible diffuse reflectance spectrum showed that it can absorb visible light of 400 ~ 500 nm. The photocatalytic activity of FeAsO_4 was tested in degradation of rhodamine B dyes. The results demonstrated that it had high activity,it can completely degrade rhodamine B dyes in 40 ~ 50 min. The photocatalytic efficiency can be attributed to the combined effect of intrinsic photocatalytic performance of FeAsO_4 and rhodamine B self- sensitization in the photocatalytic degradation process.
出处
《广州化工》
CAS
2016年第5期55-57,共3页
GuangZhou Chemical Industry
基金
湖南省科技厅发展计划院士基金课题(No:2013FJ4044)
