期刊
APPLIED CATALYSIS B-ENVIRONMENTAL
卷 268, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.apcatb.2019.118400
关键词
Photoelectrocatalysis; Preferential degradation; Porous SiO2; PAEs; Size filtration
资金
- National Natural Science Foundation of China (NSFC) [21537003, 21876128, 21477085]
Elimination of toxic environmental endocrine disruptors from wastewater systems is of great significance and still remains a grand challenge. A microporous SiO2 coated TiO2 nanotube arrays photoelectrocatalyst is prepared with controllable thickness and pore size to selectively oxidize highly toxic phthalate esters (PAEs) from complex coexisting systems. With the construction of SiO2 layer, the specific surface area increased from 105.34 m(2) g(-1) to 237.28 m(2) g(-1) compared to substrate electrode. Further confirmed by in situ IR spectroelectrochemical measurements, this system exhibited higher affinity towards target PAEs molecules, where the adsorption strength of PAEs was 3.23-fold that on the substrate electrode, while that of H2O only improved by 52%. More importantly, our designed system displayed excellent preferential removal towards PAEs in the coexistence of 10-fold concentrated natural organic matters. Meanwhile, PAEs can only be 12.6% oxidized on the substrate electrode at the same coexisting system. A novel photoelectrocatalysts is proposed employing size filtration technology to realize both effective and selective elimination of defined and highly toxic contaminations in complex coexisting systems.
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