Development of lattice defects and oxygen vacancies in Zn-doped CdAl2O4 nanoparticles for improving the photocatalytic efficiencies of brilliant green and brilliant blue dyes under visible illumination

G. Rajesh; P. Senthil Kumar; Abdullah K. Alanazi; Gayathri Rangasamy; Hala M. Abo-Dief

Catalysis Communications (Oct 2023)

Development of lattice defects and oxygen vacancies in Zn-doped CdAl2O4 nanoparticles for improving the photocatalytic efficiencies of brilliant green and brilliant blue dyes under visible illumination

G. Rajesh,
P. Senthil Kumar,
Abdullah K. Alanazi,
Gayathri Rangasamy,
Hala M. Abo-Dief

Affiliations

G. Rajesh: Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam 603110, Tamil Nadu, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam 603 110, Tamil Nadu, India
P. Senthil Kumar: Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam 603110, Tamil Nadu, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam 603 110, Tamil Nadu, India; Corresponding author at: Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam 603110, Tamil Nadu, India.
Abdullah K. Alanazi: Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia; Corresponding author.
Gayathri Rangasamy: Department of Sustainable Engineering, Institute of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai 602105, India
Hala M. Abo-Dief: Department of Science and Technology, University College-Ranyah, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia

Journal volume & issue: Vol. 183
p. 106762

Abstract

Read online

In this research, a novel spinel architecture of pure CdAl2O4 and Zn (0.025–0.075 M) doped CdAl2O4 nanoparticles were synthesized. The PL and ESR outcomes shows that the Zn doping played an effective role to prevent the e−-h+ pairs recombination in CdAl2O4 during photocatalysis. Zn (0.075 M)-CdAl2O4 provided the maximum photodegradation efficiencies for BB and BG with a removal efficiency of 91 and 96% in just 90 min as compared to other samples and remain stable after the fifth cycle. Such outcomes pave the approach for sustainable photocatalytic technologies to diminish the global influence of organic and inorganic dyes.

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

About the journal

Abstract

Keywords