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


  • 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




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


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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How to Cite

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.




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