Synthesis, characterization, low temperature solid state PL and photocatalytic activities of Ag₂O·CeO₂·ZnO nanocomposite

Md Abdus Subhan; Nizam Uddin; Prosenjit Sarker; Hiroyasu Nakata; Ryuzi Makioka

doi:10.1016/j.saa.2015.06.094

Synthesis, characterization, low temperature solid state PL and photocatalytic activities of Ag₂O·CeO₂·ZnO nanocomposite

Spectrochim Acta A Mol Biomol Spectrosc. 2015:151:56-63. doi: 10.1016/j.saa.2015.06.094. Epub 2015 Jun 24.

Authors

Md Abdus Subhan¹, Nizam Uddin², Prosenjit Sarker³, Hiroyasu Nakata⁴, Ryuzi Makioka⁴

Affiliations

¹ Department of Chemistry, Shah Jalal University of Science and Technology, Sylhet 3114, Bangladesh; Deparment of Arts and Science, Osaka Kyoiku University, Kashiwara, Osaka, Japan. Electronic address: subhan-che@sust.edu.
² Department of Chemistry, Shah Jalal University of Science and Technology, Sylhet 3114, Bangladesh.
³ Square Pharmaceuticals Ltd., Bangladesh.
⁴ Deparment of Arts and Science, Osaka Kyoiku University, Kashiwara, Osaka, Japan.

PMID: 26125983
DOI: 10.1016/j.saa.2015.06.094

Abstract

A novel multi-metal nanocomposite oxide Ag2O·CeO2·ZnO has been prepared by co-precipitation of their carbonates from aqueous solutions of the metal nitrates following calcinations and annealing 5h at 450°C and 4h at 600°C. Ag2O·CeO2·ZnO has been characterized by XRD, SEM, EDS and PL spectra. According to XRD results the crystallite size of Ag2O·CeO2·ZnO varies in the range of 19-111 nm with an average size of 50 nm, which is in good agreement with SEM results. Elemental analysis was performed by SEM-EDS. Emissions of Ag2O·CeO2·ZnO has been observed in UV (NBE emission), visible and NIR regions at 325 nm excitation by a line of He-Cd laser. Photocatalytic as well as anti-bacterial activities have been studied. The nano composite Ag2O·CeO2·ZnO shows an excellent photocatalytic dye degradation activity.

Keywords: Anti-bacteria; NBE emission; Nanocomposite oxide; Photocatalyst; Photoluminescence.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Bacteria / drug effects*
Catalysis
Cerium / chemistry*
Light*
Luminescent Measurements
Nanocomposites / chemistry*
Oxides / chemistry*
Silver Compounds / chemistry*
Temperature*
X-Ray Diffraction
Zinc Oxide / chemistry*

Substances

Oxides
Silver Compounds
Cerium
ceric oxide
disilver oxide
Zinc Oxide