Qiao YANG

Associate Professor   Supervisor of Master's Candidates

Gender:Female

Alma Mater:哈尔滨工业大学

Degree:Doctoral Degree

School/Department:化工海洋与生命学院

Discipline:Environmental Engineering. Environmental Science

Business Address:D05 314

Contact Information:0427 2631787

E-Mail:yangqiao@dlut.edu.cn


Paper Publications

Analysis of Anodes of Microbial Fuel Cells When Carbon Brushes Are Preheated at Different Temperatures

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Indexed by:期刊论文

Date of Publication:2017-11-01

Journal:CATALYSTS

Included Journals:SCIE、Scopus

Volume:7

Issue:11

ISSN No.:2073-4344

Key Words:microbial fuel cell; anode; heat treatment; carbon brushes; power generation

Abstract:The anode electrode is one of the most important components in all microbial electrochemical technologies (METs). Anode materials pretreatment and modification have been shown to be an effective method of improving anode performance. According to mass loss analysis during carbon fiber heating, five temperatures (300, 450, 500, 600, and 750 degrees C) were selected as the pre-heating temperatures of carbon fiber brush anodes. Microbial fuel cell (MFC) reactors built up with these pre-heated carbon brush anodes performed with different power densities and Coulombic efficiencies (CEs). Two kinds of measuring methods for power density were applied, and the numerical values of maximum power densities diverged greatly. Reactors with 450 degrees C anodes, using both methods, had the highest power densities, and the highest CEs were found using 500 degrees C anode reactors. The surface elements of heat-treated carbon fibers were analyzed using X-ray photoelectron spectra (XPS), and C, O, and N were the main constituents of the carbon fiber. There were four forms of N1s at the surface of the polyacrylonitrile (PAN)-based carbon fiber, and their concentrations were different at different temperature samples. The microbial community of the anode surface was analyzed, and microbial species on anodes from every sample were similar. The differences in anode performance may be caused by mass loss and by the surface elements. For carbon brush anodes used in MFCs or other BESs, 450-500 degrees C preheating was the most suitable temperature range in terms of the power densities and CEs.

Pre One:Activated carbon clogging analysis in an integration of constructed wetland with microbial fuel cell

Next One:A bio-electrochemical membrane system for more sustainable wastewater treatment with MnO2/PANI modified stainless steel cathode and photosynthetic provision of dissolved oxygen by algae

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杨俏,女,毕业于哈尔滨工业大学,环境科学与工程博士。现任大连理工大学海洋科学与技术学院副教授,硕士生导师。研究方向为水污染治理与资源化,包括生物电化学法去除水中污染物、污水发电、微生物燃料电池等,联系邮箱 yangqiao@dlut.edu.cn。