On the contribution factors of enhanced photocatalytic activity of doped semiconductors: Structural and optical investigation of Cu2+ doped ZnO nanoparticles

Ta Duy Quynh, Luu Thi Lan Anh, Nguyen Sang Xuan
Author affiliations

Authors

  • Ta Duy Quynh Saigon University, 273 An Duong Vuong, Ward 3, District 5, Ho Chi Minh city, Viet Nam
  • Luu Thi Lan Anh School of Engineering Physics, Hanoi University of Science and Technology, Hanoi, Viet Nam
  • Nguyen Sang Xuan Saigon University, 273 An Duong Vuong, Ward 3, District 5, Ho Chi Minh city, Viet Nam https://orcid.org/0000-0003-2048-3137

DOI:

https://doi.org/10.15625/2525-2518/59/3/15490

Keywords:

Doped ZnO nanoparticle, photocatalysis, bandgap, recombination rate, visible absorption

Abstract

As a traditional direct bandgap oxide semiconductor, ZnO, showed as a promising photocatalytic candidate. Researchers worldwide reported many possibilities to improve its photocatalytic activity such as doped with metal, non-metal ions. As a result of heterojunction formation between ZnO and its intentional impurity, previous reports showed beneficial characteristics for enhancing photocatalytic activity in these ZnO-based materials, i.e. bandgap narrowing, recombination rate of photoelectron-hole prolonging, visible light absorption improving. This work will present the photocatalytic acitivity improvement of ZnO when doping with ion Cu2+ and try to illustrate the crucial photocatalytic enhancement factors.

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Published

17-05-2021

How to Cite

[1]
T. D. Quynh, L. T. L. Anh, and N. S. Xuan, “On the contribution factors of enhanced photocatalytic activity of doped semiconductors: Structural and optical investigation of Cu2+ doped ZnO nanoparticles”, Vietnam J. Sci. Technol., vol. 59, no. 3, pp. 277–289, May 2021.

Issue

Vol. 59 No. 3 (2021)

Section

Materials

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