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Nitrogen self-doped porous carbon nanosheets derived from azo dye flocs for efficient supercapacitor electrodes

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2019, 29(5), pp.455-460
  • DOI : 10.1007/s42823-019-00088-y
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : September 16, 2018
  • Accepted : August 29, 2019
  • Published : October 1, 2019

Wei Tingting 1 Wu Liang 2 Yu Feng 1 Lv Yin 1 Chen Long 1 Shi Yulin 1 Dai Bin 1

1Shihezi University
2Chongqing Daxin Pharmaceutical Co. Ltd

Accredited

ABSTRACT

The present work introduces a new method for the recycling of waste flocculation sludge to prepare electrode materials for supercapacitor. Hazardous azo dye was removal from textile dying wastewater by a new chitosan-based flocculant, and the generated dye sludge flocs was used as a nitrogen-containing precursor for the fabrication of N-doped carbon materials. The influence of azo dye on specific surface areas, nitrogen content, pore evolution of the resulting products and their electrochemical performance were investigated in detail. The results demonstrated a dual role of azo dye worked as both a nitrogen resource and pore-forming agent. The resulting N-doped carbon nanosheets derived from azo dye flocs demonstrated high electrochemical capacitance and good stability for supercapacitor electrode, which is attributed to the unique nitrogen doping, higher specific surface area and efficient charge transfer ability.

Citation status

Scopus Citation Counts (2) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2023-10-01)

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