Issue 5, 2020, Issue in Progress
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RSC Advances

The synergy of N-doped and SPR-promoted photocatalytic removal of NO with graphene/Bi nanocomposites†

Zijuan Feng, ORCID logo ab   Deru Lian,b   Xue Wu,ab   Yi Liu,b   Wen Jiaab  and  Xiaoya Yuan*ab  

* Corresponding authors

a China-Spain Collaborative Research Center for Advanced Materials, Chongqing Jiaotong University, Chongqing 400074, China
E-mail: yuanxy@cqjtu.edu.cn
Fax: +86-23-62789154
Tel: +86-23-62789154

b College of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, China

Abstract

Nitrogen-doped graphene/bismuth (NG/Bi) nanocomposites with different graphene contents were successfully assembled using a one-pot method. Detailed characterization of the as-synthesized samples, including powder X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), UV-vis diffuse reflectance spectroscopy (DRS), photoluminescence spectra (PL) and photoelectrochemical measurements was conducted. The results showed that nitrogen elements were introduced into the skeleton of graphene and Bi nanoparticles were irregularly distributed on the N-doped graphene nanosheets. The NG/Bi composites performed better photocatalytic NO removal activity than their counterparts under UV light illumination. The removal ratio of NO over 2%-NG/Bi was 49.5%, and the recycling activity after 5 runs was not significantly weakened. The enhanced photocatalytic performance was due to the synergistic effect of N-graphene, which not only elevated the absorption of light, but also accelerated the transfer of hot electrons generated by the SPR effect of Bi.

Graphical abstract: The synergy of N-doped and SPR-promoted photocatalytic removal of NO with graphene/Bi nanocomposites

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Article information

DOI
https://doi.org/10.1039/C9RA10001F
Article type
Paper
Submitted
29 Nov 2019
Accepted
08 Jan 2020
First published
15 Jan 2020
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2020,10, 2734-2739

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The synergy of N-doped and SPR-promoted photocatalytic removal of NO with graphene/Bi nanocomposites

Z. Feng, D. Lian, X. Wu, Y. Liu, W. Jia and X. Yuan, RSC Adv., 2020, 10, 2734 DOI: 10.1039/C9RA10001F

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