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Journal of Colloid and Interface Science, volume 554, pages 468-478

Fabricated rGO-modified Ag2S nanoparticles/g-C3N4 nanosheets photocatalyst for enhancing photocatalytic activity

Publication typeJournal Article
Publication date2019-10-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor9.9
ISSN00219797, 10957103
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Colloid and Surface Chemistry
Biomaterials
Abstract
Photocatalytic technology provides a new strategy for the treatment of water pollution and energy crisis. Developing photocatalytic materials with high efficiency and stable visible light response has always been the direction of scientific researchers in the photocatalytic field. In this paper, we designed and prepared an efficient and stable rGO-modifited type-I Ag 2 S/g-C 3 N 4 heterojunction photocatalyst (rGO/Ag 2 S/CN). The TEM (Transmission electron microscope) technology shows that the morphology of rGO/Ag 2 S/CN is a sandwich-like structure. UV–Vis DRS (UV–visible diffuse-reflectance spectrum) shows that the loading of Ag 2 S NPs and the modification of rGO effectively enhance the light response performance of nanocomposite materials in visible light. PL (Photoluminescence) and PEC (Photoelectrochemical) results prove that the photogenerated carriers transport and separation efficiency of rGO/Ag 2 S/CN have been improved. The photodegradation of RhB and the photoreduction of CO 2 results confirmed that this ternary nanocomposite has great photocatalytic activity. The photodegradation efficiency of the RhB aqueous solution is about 98.5% after 30 min under the visible light irradiation. The photoreduction experiments showed that the yields of CO and CH 4 are 178.05 μmol/g and 121.11 μmol/g, respectively after 8 h under the UV light irradiation. The results of cyclic photocatalytic experiments and the XRD pattern after those processes further revealed that the modification of rGO not only enhanced the photocatalytic performance of the nanocomposite photocatalyst, but also effectively improved the stability of Ag 2 S in the photocatalytic process. The possible photocatalytic reaction mechanisms were discussed in detail.

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GOST Copy
Li X. et al. Fabricated rGO-modified Ag2S nanoparticles/g-C3N4 nanosheets photocatalyst for enhancing photocatalytic activity // Journal of Colloid and Interface Science. 2019. Vol. 554. pp. 468-478.
GOST all authors (up to 50) Copy
Li X., SHEN D., Liu C., Li J., Zhou Y., Song X., Huo P., Wang Huiqin 王., Yan Y. Fabricated rGO-modified Ag2S nanoparticles/g-C3N4 nanosheets photocatalyst for enhancing photocatalytic activity // Journal of Colloid and Interface Science. 2019. Vol. 554. pp. 468-478.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1016/j.jcis.2019.07.027
UR - https://doi.org/10.1016/j.jcis.2019.07.027
TI - Fabricated rGO-modified Ag2S nanoparticles/g-C3N4 nanosheets photocatalyst for enhancing photocatalytic activity
T2 - Journal of Colloid and Interface Science
AU - Li, Xiaolin
AU - SHEN, DONG
AU - Liu, Chun
AU - Li, Jinze
AU - Zhou, Yaju
AU - Song, Xianghai
AU - Huo, Pengwei
AU - Wang Huiqin, 王慧琴
AU - Yan, Yongsheng
PY - 2019
DA - 2019/10/01 00:00:00
PB - Elsevier
SP - 468-478
VL - 554
SN - 0021-9797
SN - 1095-7103
ER -
BibTex
Cite this
BibTex Copy
@article{2019_Li,
author = {Xiaolin Li and DONG SHEN and Chun Liu and Jinze Li and Yaju Zhou and Xianghai Song and Pengwei Huo and 王慧琴 Wang Huiqin and Yongsheng Yan},
title = {Fabricated rGO-modified Ag2S nanoparticles/g-C3N4 nanosheets photocatalyst for enhancing photocatalytic activity},
journal = {Journal of Colloid and Interface Science},
year = {2019},
volume = {554},
publisher = {Elsevier},
month = {oct},
url = {https://doi.org/10.1016/j.jcis.2019.07.027},
pages = {468--478},
doi = {10.1016/j.jcis.2019.07.027}
}
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