Visible-Light-Driven Photocatalytic Fuel Cell with an Ag-TiO2 Carbon Foam Anode for Simultaneous 4-Chlorophenol Degradation and Energy Recovery

Photocatalytic fuel cells (PFCs) are a sustainable technology with application in waste water treatment, in which energy is obtained from the photocatalytic degradation of organic pollutants. However, the application of PFCs is limited by the photoanode, in particular its low efficiency for treating...

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Main Authors: Shaozhu Fu, Beiqi Deng, Dongmei Ma, Hanqing Cheng, Shuangshi Dong
Format: Article
Language:English
Published: MDPI AG 2018-05-01
Series:ChemEngineering
Subjects:
Online Access:http://www.mdpi.com/2305-7084/2/2/20
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author Shaozhu Fu
Beiqi Deng
Dongmei Ma
Hanqing Cheng
Shuangshi Dong
author_facet Shaozhu Fu
Beiqi Deng
Dongmei Ma
Hanqing Cheng
Shuangshi Dong
author_sort Shaozhu Fu
collection DOAJ
description Photocatalytic fuel cells (PFCs) are a sustainable technology with application in waste water treatment, in which energy is obtained from the photocatalytic degradation of organic pollutants. However, the application of PFCs is limited by the photoanode, in particular its low efficiency for treating recalcitrant pollutants. In this study, a double chamber PFC reactor was constructed. Visible-light-driven Ag-TiO2 photocatalyst supported carbon foam was used as the anode and platinum was used as the cathode. 4-Chlorophenol (4-CP) was used as a model pollutant in the cation chamber to investigate the efficiency of pollutant degradation and power generation. The effects of the electrolyte type and solution pH on the 4-CP degradation and power production were investigated. The results showed that 32.6% of 4-CP was degraded by the PFC in 6 h. Na2SO4 was the optimum electrolyte and had the least side effects on the degradation of 4-CP when compared with NaCl, NaHCO3 and NaH2PO4. The optimum pH range was 6.4–8.4 when sodium sulfate was used as the electrolyte. The power density was approximately 36.0 mW/m2 under the above experimental conditions.
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spelling doaj.art-50c23f4cbaeb488285c561e47a35e3e92022-12-22T02:59:37ZengMDPI AGChemEngineering2305-70842018-05-01222010.3390/chemengineering2020020chemengineering2020020Visible-Light-Driven Photocatalytic Fuel Cell with an Ag-TiO2 Carbon Foam Anode for Simultaneous 4-Chlorophenol Degradation and Energy RecoveryShaozhu Fu0Beiqi Deng1Dongmei Ma2Hanqing Cheng3Shuangshi Dong4Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, ChinaThe College of Environment and Resources, Jilin University, Changchun 130021, ChinaThe College of Environment and Resources, Jilin University, Changchun 130021, ChinaKey Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, ChinaKey Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, ChinaPhotocatalytic fuel cells (PFCs) are a sustainable technology with application in waste water treatment, in which energy is obtained from the photocatalytic degradation of organic pollutants. However, the application of PFCs is limited by the photoanode, in particular its low efficiency for treating recalcitrant pollutants. In this study, a double chamber PFC reactor was constructed. Visible-light-driven Ag-TiO2 photocatalyst supported carbon foam was used as the anode and platinum was used as the cathode. 4-Chlorophenol (4-CP) was used as a model pollutant in the cation chamber to investigate the efficiency of pollutant degradation and power generation. The effects of the electrolyte type and solution pH on the 4-CP degradation and power production were investigated. The results showed that 32.6% of 4-CP was degraded by the PFC in 6 h. Na2SO4 was the optimum electrolyte and had the least side effects on the degradation of 4-CP when compared with NaCl, NaHCO3 and NaH2PO4. The optimum pH range was 6.4–8.4 when sodium sulfate was used as the electrolyte. The power density was approximately 36.0 mW/m2 under the above experimental conditions.http://www.mdpi.com/2305-7084/2/2/20Ag-TiO2photocatalytic fuel cellcarbon foam4-chlorophenolelectrolyte
spellingShingle Shaozhu Fu
Beiqi Deng
Dongmei Ma
Hanqing Cheng
Shuangshi Dong
Visible-Light-Driven Photocatalytic Fuel Cell with an Ag-TiO2 Carbon Foam Anode for Simultaneous 4-Chlorophenol Degradation and Energy Recovery
ChemEngineering
Ag-TiO2
photocatalytic fuel cell
carbon foam
4-chlorophenol
electrolyte
title Visible-Light-Driven Photocatalytic Fuel Cell with an Ag-TiO2 Carbon Foam Anode for Simultaneous 4-Chlorophenol Degradation and Energy Recovery
title_full Visible-Light-Driven Photocatalytic Fuel Cell with an Ag-TiO2 Carbon Foam Anode for Simultaneous 4-Chlorophenol Degradation and Energy Recovery
title_fullStr Visible-Light-Driven Photocatalytic Fuel Cell with an Ag-TiO2 Carbon Foam Anode for Simultaneous 4-Chlorophenol Degradation and Energy Recovery
title_full_unstemmed Visible-Light-Driven Photocatalytic Fuel Cell with an Ag-TiO2 Carbon Foam Anode for Simultaneous 4-Chlorophenol Degradation and Energy Recovery
title_short Visible-Light-Driven Photocatalytic Fuel Cell with an Ag-TiO2 Carbon Foam Anode for Simultaneous 4-Chlorophenol Degradation and Energy Recovery
title_sort visible light driven photocatalytic fuel cell with an ag tio2 carbon foam anode for simultaneous 4 chlorophenol degradation and energy recovery
topic Ag-TiO2
photocatalytic fuel cell
carbon foam
4-chlorophenol
electrolyte
url http://www.mdpi.com/2305-7084/2/2/20
work_keys_str_mv AT shaozhufu visiblelightdrivenphotocatalyticfuelcellwithanagtio2carbonfoamanodeforsimultaneous4chlorophenoldegradationandenergyrecovery
AT beiqideng visiblelightdrivenphotocatalyticfuelcellwithanagtio2carbonfoamanodeforsimultaneous4chlorophenoldegradationandenergyrecovery
AT dongmeima visiblelightdrivenphotocatalyticfuelcellwithanagtio2carbonfoamanodeforsimultaneous4chlorophenoldegradationandenergyrecovery
AT hanqingcheng visiblelightdrivenphotocatalyticfuelcellwithanagtio2carbonfoamanodeforsimultaneous4chlorophenoldegradationandenergyrecovery
AT shuangshidong visiblelightdrivenphotocatalyticfuelcellwithanagtio2carbonfoamanodeforsimultaneous4chlorophenoldegradationandenergyrecovery