N,S-doped carbon dots as dual-functional modifiers to boost bio-electricity generation of individually-modified bacterial cells

Dan Guo, Hui Fang Wei, Rong Bin Song, Jiaju Fu, Xuanzhao Lu, Raz Jelinek, Qianhao Min, Jian Rong Zhang, Qichun Zhang, Jun Jie Zhu

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

A high-efficiency extracellular electron transfer (EET) of exoelectrogens from the inside of the outer membrane to the external environment is of great importance in the bioelectrochemical energy research. In this regard, developing functional modifiers for individual bacteria, meanwhile integrating efficient light-enhanced energy conversion process possess huge potential to achieve excellent EET. Herein, a practical strategy of modifying individual bacteria by using photo-responsive N, S-doped carbon dots (m-NSCDs) is proposed. This suggested that the m-NSCDs can act as dual-functional modifiers which not only afford enhanced conductivity of bacteria, but also serve as photosensitizers to achieve light-enhanced catalytic process. Specifically, this novel design enables the simultaneous utilization of light- and electrochemical-energy, eventually yielding a superior power output performance.

Original languageEnglish
Article number103875
JournalNano Energy
Volume63
DOIs
StatePublished - 1 Sep 2019

Keywords

  • Carbon dots
  • Extracellular electron transfer
  • Light-enhanced energy conversion
  • Microbial fuel cell

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science (all)
  • Electrical and Electronic Engineering

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