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Photocatalytically improved azo dye reduction in a microbial fuel cell with rutile-cathode.
Bioresour Technol. 2010 May; 101(10):3500-5.BT

Abstract

Reductive decolorization of azo dye in wastewater was investigated in a dual-chamber microbial fuel cell (MFC) equipped with cathodes made of graphite or rutile-coated graphite. Rapid reduction of methyl orange (MO) with concomitant electricity production was achieved when the rutile-coated cathode was irradiated by visible light. The electrochemical impedance spectra (EIS) indicate that the polarization resistance (R(p)) of the rutile-cathode MFC decreased from 1378 Omega in dark to 443.4 Omega in light, demonstrating that photocatalysis of rutile can enhance the cathodic electron transfer process. The combination of the biologically active anode and photocatalysis-supported cathodic reduction of MO obeyed the pseudo-first-order kinetics. The analysis of decolorization products indicates that the azo bond of MO was probably cleaved by photoelectrons at the irradiated rutile-cathode, resulting in the products of colorless hydrazine derivatives. In addition, concurrently enhanced electricity generation in the MFCs involving photocatalyzed cathodic reduction of MO was observed throughout this study.

Authors+Show Affiliations

The Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing 100871, PR China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20093012

Citation

Ding, Hongrui, et al. "Photocatalytically Improved Azo Dye Reduction in a Microbial Fuel Cell With Rutile-cathode." Bioresource Technology, vol. 101, no. 10, 2010, pp. 3500-5.
Ding H, Li Y, Lu A, et al. Photocatalytically improved azo dye reduction in a microbial fuel cell with rutile-cathode. Bioresour Technol. 2010;101(10):3500-5.
Ding, H., Li, Y., Lu, A., Jin, S., Quan, C., Wang, C., Wang, X., Zeng, C., & Yan, Y. (2010). Photocatalytically improved azo dye reduction in a microbial fuel cell with rutile-cathode. Bioresource Technology, 101(10), 3500-5. https://doi.org/10.1016/j.biortech.2009.11.107
Ding H, et al. Photocatalytically Improved Azo Dye Reduction in a Microbial Fuel Cell With Rutile-cathode. Bioresour Technol. 2010;101(10):3500-5. PubMed PMID: 20093012.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Photocatalytically improved azo dye reduction in a microbial fuel cell with rutile-cathode. AU - Ding,Hongrui, AU - Li,Yan, AU - Lu,Anhuai, AU - Jin,Song, AU - Quan,Chao, AU - Wang,Changqiu, AU - Wang,Xin, AU - Zeng,Cuiping, AU - Yan,Yunhua, Y1 - 2010/01/25/ PY - 2009/09/15/received PY - 2009/11/24/revised PY - 2009/11/25/accepted PY - 2010/1/23/entrez PY - 2010/1/23/pubmed PY - 2010/5/15/medline SP - 3500 EP - 5 JF - Bioresource technology JO - Bioresour Technol VL - 101 IS - 10 N2 - Reductive decolorization of azo dye in wastewater was investigated in a dual-chamber microbial fuel cell (MFC) equipped with cathodes made of graphite or rutile-coated graphite. Rapid reduction of methyl orange (MO) with concomitant electricity production was achieved when the rutile-coated cathode was irradiated by visible light. The electrochemical impedance spectra (EIS) indicate that the polarization resistance (R(p)) of the rutile-cathode MFC decreased from 1378 Omega in dark to 443.4 Omega in light, demonstrating that photocatalysis of rutile can enhance the cathodic electron transfer process. The combination of the biologically active anode and photocatalysis-supported cathodic reduction of MO obeyed the pseudo-first-order kinetics. The analysis of decolorization products indicates that the azo bond of MO was probably cleaved by photoelectrons at the irradiated rutile-cathode, resulting in the products of colorless hydrazine derivatives. In addition, concurrently enhanced electricity generation in the MFCs involving photocatalyzed cathodic reduction of MO was observed throughout this study. SN - 1873-2976 UR - https://www.unboundmedicine.com/medline/citation/20093012/Photocatalytically_improved_azo_dye_reduction_in_a_microbial_fuel_cell_with_rutile_cathode_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0960-8524(09)01660-5 DB - PRIME DP - Unbound Medicine ER -