Engineering Interface with a One-Dimensional RuO2/TiO2 Heteronanostructure in an Electrocatalytic Membrane Electrode: Toward Highly Efficient Micropollutant Decomposition

Xianhui Li, Senlin Shao, Yang Yang, Ying Mei, Weihua Qing, Hao Guo, Lu Elfa Peng, Peng Wang, Chuyang Y. Tang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

4 Citations (Scopus)

Abstract

Decomposition of micropollutants using an electrocatalytic membrane reactor is a promising alternative to traditional advanced oxidation processes due to its high efficiency and environmental compatibility. Rational interface design of electrocatalysts in the membrane electrode is critical to the performance of the reactor. We herein developed a three-dimensional porous membrane electrode via in situ growth of one-dimensional RuO2/TiO2 heterojunction nanorods on a carbon nanofiber membrane by a facile hydrothermal and subsequent thermal treatment approach. The membrane electrode was used as the anode in a gravity-driven electrocatalytic membrane reactor, exhibiting a high degradation efficiency of over 98% toward bisphenol-A and sulfadiazine. The superior electrocatalytic performance was attributed to the 1D RuO2/TiO2 heterointerfacial structure, which provided the fast electron transfer, high generation rate of the hydroxyl radical, and large effective surface area. Our work paves a novel way for the fundamental understanding and designing of novel highly effective and low-consumptive electrocatalytic membranes for wastewater treatment.

Original languageEnglish
Pages (from-to)21596-21604
Number of pages9
JournalACS applied materials & interfaces
Volume12
Issue number19
DOIs
Publication statusPublished - 13 May 2020

Keywords

  • RuO /TiO heterojunction
  • carbon nanofiber membrane electrode
  • electrocatalytic oxidation of micropollutants
  • interface engineering
  • nanorods

ASJC Scopus subject areas

  • Materials Science(all)

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