期刊
REACTIVE & FUNCTIONAL POLYMERS
卷 146, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.reactfunctpolym.2019.104401
关键词
PPy-TiO2; 4-chlorophenol; Diclofenac; Photocatalysis
资金
- FCT/MCTES [UID/CTM/50011/2019]
- Bolsista CAPES/BRASIL [FAPERGS N 88887.195036/201800]
- Portuguese national funds (OE), through FCT, I.P.
In this work, we successfully synthesized TiO2-polypyrrole (PPy) composite material via polymerization method using the sulfuric acid (H2SO4) as an oxidizing agent. Different characterization techniques, including electrostatic force microscopy, confirmed that TiO2 was intimately attached on PPy. The photocatalytic activity of PPy-TiO2 composite was studied experimentally for the conversion of diclofenac (DCF)- one of the most frequently detected pharmaceutical compounds in the aquatic environment - and 4-chlorophenol (4-CP) - largely used in the bleaching of cellulose pulp in the paper industry, as herbicide and pesticide - under simulated solar light irradiation at environmental conditions. This is the first time that a composite PPy-TiO2 was used as photo catalyst for the conversion of 4-CP. Results showed that the PPy-TiO2 was able to convert more than 90% of DCF and 40% of 4-CP in just 60 min, showing stability and efficiency over five consecutive cycles of reuse for both pollutants. The produced PPy-TiO2 showed higher photocatalytic efficiency compared to that of TiO2, thus proving itself to be a promising photocatalyst.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据