硅藻土负载纳米银光催化降解罗丹明B

Photocatalytic degradation of rhodamine B with nano silver supported on diatomite

以硝酸银作为前驱体,化学还原法合成纳米银微粒,并将其负载于硅藻土上,制备Ag@硅藻土.在不同条件下用其降解罗丹明B,以降解率为指标,确定最佳实验条件.结果表明:在最佳条件下,Ag@硅藻土对罗丹明B的8 h降解率超过90%,延长降解时间,降解率可以接近100%.

The study aims to conduct a chemical reductive reaction though AgNO3,which are being as the silver precursor to synthesize into nano silver particle.In addition loading it on diatomite(Ag@diatomite)and explain Rhodamine B in different conditions.Using degradation rate as index to make sure the optional experimental conditions.The results showed that under the optimum conditions,the degradation rate of Rhodamine B by Ag@diatomite was more than 90%in 8 h,and the degradation rate was close to 100%when the degradation time was prolonged.