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In situ degradation of organic pollutants by novel solar cell equipped soil microbial fuel cell

Environmental Science and Pollution Research, ISSN: 1614-7499, Vol: 30, Issue: 11, Page: 30210-30220
2023
  • 6
    Citations
  • 0
    Usage
  • 7
    Captures
  • 1
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    6
    • Citation Indexes
      6
  • Captures
    7
  • Mentions
    1
    • News Mentions
      1
      • 1

Most Recent News

New Energy Findings from Lanzhou University Reported (In Situ Degradation of Organic Pollutants By Novel Solar Cell Equipped Soil Microbial Fuel Cell)

2022 DEC 22 (NewsRx) -- By a News Reporter-Staff News Editor at Energy Daily News -- Current study results on Energy have been published. According

Article Description

The soil microbial fuel cell (SMFC) has been widely used for soil remediation for its low cost and being eco-friendly. But low degradation efficiency and high mass transfer resistance limit its performance. This study constructed a solar cell-soil microbial fuel cell (SC-SMFC) with different voltages, which use clean energy to improve system performance. At different voltages, 2.0-V system showed the best performance and the maximum output power increased by 330% compared with SMFC. Moreover, 2.0-V SC-SMFC showed the fastest phenol degradation rate of 14 μg·mL·d at the concentration of 80 μg/mL, which was twice of SMFC. Further increasing the concentration to 320 μg/mL, the system showed extremely high concentration limit and degraded 90% within 19 days. Under this condition, SC-SMFC still showed excellent cycle stability, with the third-round degrading 90% phenol in 13 days. Finally, electrochemical impedance spectroscopy (EIS) mechanism study showed that solar cells can accelerate microbial metabolic process and reduce the internal resistance, in which the 2.0-V system was only 87% of SMFC. In conclusion, SC-SMFC provides a green, low-cost, and convenient method for in situ soil remediation in the future.

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