Jump to main content
Jump to site search

Issue 36, 2017
Previous Article Next Article

Interface modulation of bacteriogenic Ag/AgCl nanoparticles by boosting the catalytic activity for reduction reactions using Co2+ ions

Author affiliations

Abstract

Boosting the low catalytic activity of bacteriogenic Ag/AgCl nanoparticles (NPs) by adding Co2+ in a model reaction, i.e. p-nitrophenol (PNP) reduction, was observed. Under optimal conditions, Co–Ag/AgCl NPs show an apparent rate constant (kapp) of 0.0837 s−1 upon PNP reduction. Considering the trace amount of Co–Ag/AgCl NPs used in catalysis (about 1.2 μg), the activity parameter κ (which is the ratio of kapp and catalyst mass) can reach more than 6.97 × 104 s−1 g−1, which is 214-fold higher than that of pristine Ag/AgCl NPs. Meanwhile, this κ value is also the highest value reported to date. In addition, the biogenic Co–Ag/AgCl NPs exhibit superior catalytic activities over other substrates, such as m-nitrophenol, o-nitrophenol, methyl orange and rhodamine B. The activity enhancement mechanism is supposed to be that Co2+ acts as a Lewis acid, and coordinates with the surface peptides to affect the electric field distribution at the Ag/AgCl NP interface.

Graphical abstract: Interface modulation of bacteriogenic Ag/AgCl nanoparticles by boosting the catalytic activity for reduction reactions using Co2+ ions

Back to tab navigation

Supplementary files

Publication details

The article was received on 25 Jan 2017, accepted on 06 Apr 2017 and first published on 07 Apr 2017


Article type: Communication
DOI: 10.1039/C7CC00684E
Citation: Chem. Commun., 2017,53, 4946-4949
  •   Request permissions

    Interface modulation of bacteriogenic Ag/AgCl nanoparticles by boosting the catalytic activity for reduction reactions using Co2+ ions

    H. Zhou, L. Che, X. Guo, X. Wang, J. Zhan, M. Wu, Y. Hu, X. Yi, X. Zhang and L. Liu, Chem. Commun., 2017, 53, 4946
    DOI: 10.1039/C7CC00684E

Search articles by author

Spotlight

Advertisements