期刊
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
卷 155, 期 -, 页码 49-60出版社
ELSEVIER
DOI: 10.1016/j.psep.2021.09.006
关键词
Microbial fuel cell; Energy generation; Wastewater treatment; Anode fabrication; Lignin
资金
- Universiti Sains Malaysia, Malaysia
Microbial fuel cell (MFC) is a significant bioelectrochemical approach for electricity generation and metal removal, although challenges such as low electron transfer rates persist. In this study, the modified Lg-GO/TiO2 anode showed promising performance in MFC operation, suitable for energy generation and metal removal.
Microbial fuel cell (MFC) is the most prominent bioelectrochemical approach in electricity generation while metal removal is its secondary application. However, ongoing challenges including low electron transfer rates and unstable biofilm formation on the anode surface need to be addressed. As an attempt to overcome such drawbacks, in the present study, the anode was prepared from graphene oxide (Lg-GO) obtained from lignin and subsequently modified with a metal oxide (i.e., TiO2). Thus, the plain Lg-GO and Lg-GO/TiO2 delivered 57.01 mA/m2 and 70.17 mA/m2 of current density along with 85 % and 90 % of Pb (II) ions removal from synthetic wastewater, respectively within the 90-day operation of MFC. The recorded maximum power density at the Lg-GO anode was 0.44 mW/m2, while the maximum PD at the Lg-GO/TiO2 anode was 0.78 mW/m2. The prepared anodes were characterized, and the operational conditions were optimized to validate their performances. The results showed that the optimum performance of the anode was in normal environmental conditions (e.g., pH 7, room temperature). In conclusion, the obtained results indicated that the prepared electrodes (i.e., Lg-GO and Lg-GO/TiO2) are suitable for energy generation and metal removal via MFC. (c) 2021 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
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