Green and facile synthesis of strontium doped Nb2O5/RGO photocatalyst: Efficacy towards H2 evolution, benzophenone-3 degradation and Cr(VI) reduction

K. Yogesh Kumar; M.K. Prashanth; H. Shanavaz; L. Parashuram; Fahad A. Alharti; Byong-Hun Jeon; M.S. Raghu

Catalysis Communications (Jan 2023)

Green and facile synthesis of strontium doped Nb2O5/RGO photocatalyst: Efficacy towards H2 evolution, benzophenone-3 degradation and Cr(VI) reduction

K. Yogesh Kumar,
M.K. Prashanth,
H. Shanavaz,
L. Parashuram,
Fahad A. Alharti,
Byong-Hun Jeon,
M.S. Raghu

Affiliations

K. Yogesh Kumar: Department of Chemistry, Faculty of Engineering and Technology, Jain University, Bangalore 562112, India
M.K. Prashanth: Department of Chemistry, BNM Institute of Technology, Banashankari, Bangalore 560070, India
H. Shanavaz: Department of Chemistry, Faculty of Engineering and Technology, Jain University, Bangalore 562112, India
L. Parashuram: Department of Chemistry, Nitte Meenakshi Institute of Technology, Yelahanka, Bangalore 560064, India
Fahad A. Alharti: Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
Byong-Hun Jeon: Department of Earth Resources and Environmental Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea; Corresponding authors.
M.S. Raghu: Department of Chemistry, New Horizon College of Engineering, Outer Ring Road, Bangalore 560103, India; Corresponding authors.

Journal volume & issue: Vol. 173
p. 106560

Abstract

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A simple co-precipitation method has been developed to synthesize Nb2O5/reduced graphene oxide nanocomposite (NbO/RGO). The effect of various % of strontium doping on NbO/RGO was studied. The characterization results for its structure; morphology confirms the decoration of NbO with RGO followed by Sr doping resulting in Sr@N/R-wt% nanocomposite. Various % of Sr has been doped to NbO/RGO and evaluated for photocatalytic H2 evolution, degradation benzophenone-3, and Cr(VI). Enhanced H2 evolution was observed in Sr@N/R-0.75% nanocomposite (1925 μmol) and found three and two times greater than pristine NbO and NbO/RGO, respectively. Sr@N/R-0.75% nanocomposite was able to degrade 94.6 and 87.7% of BP and Cr(VI) respectively.

Published in Catalysis Communications

ISSN: 1566-7367 (Print); 1873-3905 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Chemistry
Website: https://www.journals.elsevier.com/catalysis-communications

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