聚苯胺
光催化
溶解
涂层
降级(电信)
溶解度
核化学
材料科学
化学工程
可见光谱
盐酸四环素
化学
四环素
纳米技术
催化作用
有机化学
聚合物
复合材料
聚合
抗生素
工程类
电信
生物化学
光电子学
计算机科学
作者
Sofia K. Fanourakis,Sharona Q. Barroga,Riya Ann Mathew,Janire Peña‐Bahamonde,Stacey M. Louie,J. Perez,Débora F. Rodrigues
标识
DOI:10.1016/j.jece.2022.107635
摘要
A semiconducting material (polyaniline-coated magnetic MoO3) with photodegradative properties and low solubility was synthesized and assessed in the degradation of tetracycline (TC) to address the rising concern of antibiotics in water systems. Polyaniline (PANI) provided a protective coating, significantly reducing MoO3 dissolution across a wide pH range, while the Fe3O4 core facilitated photocatalyst extraction from water. Uncoated MoO3@Fe3O4 dissolution significantly increased with increasing pH (dissolved Mo percentage of 2.9% at pH 3 and 22.9% at pH 10). With the PANI coating, dissolution was reduced to 1.6% at pH 3 and 5.6% at pH 10. The TC removal by [email protected]3@Fe3O4 was 8.2 mg TC/g photocatalyst in visible light and 6.5 mg/g in dark within 35 min under optimum conditions. The degradative properties of [email protected]3@Fe3O4 toward TC were facilitated by reactive species produced from water oxidation by photogenerated holes (h+). This initial assessment of [email protected]3@Fe3O4 as a photocatalyst for pharmaceutical contaminant degradation indicates [email protected]3@Fe3O4 is a promising material useful for wider environmental applications.
科研通智能强力驱动
Strongly Powered by AbleSci AI