Wood carbon electrode in microbial fuel cell enhances chromium reduction and bioelectricity generation

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Aman Khan
  • Zi Yang
  • Yuxin Gong
  • Gohar Ali
  • Pu Liu
  • Fengjuan Chen
  • Xiangkai Li

Detail(s)

Original languageEnglish
Number of pages11
Journal / PublicationEnvironmental Science and Pollution Research
Online published30 Sep 2021
Publication statusOnline published - 30 Sep 2021

Abstract

Microbial fuel cell (MFC) is a recommended treatment to remediate hexavalent chromium (Cr(VI)) in wastewater. In this study, a wood carbon (WC) electrode was introduced in MFC to enhance the Cr(VI) removal efficiency. WC electrode in MFC completely removed Cr(VI) as compared to the carbon cloth (31.12%) and carbon felt (34.83) within 48 h of operation at 20 mg L−1 of Cr(VI) concentration. The maximum power density of WC electrode was 62.59 mW m−2 higher than 0.115 and 3.154 mW m−2 of carbon cloth and felt respectively. The specific surface area of WC increased to 158.47 m−2 g−1 after high-temperature carbonization, and electrochemical tests indicate it has higher electrocatalytic ability. Therefore, WC might be a good electrode material to effectively remove Cr(VI) and generate bioelectricity simultaneously.

Research Area(s)

  • Wood electrode, MFC, Cr(VI), Bioreduction, Electricity generation

Citation Format(s)