Articles
  • Optical properties of the Bi2O3 - B2O3 - ZnO glass system combined with TiO2 or Ag/TiO2

  • Kieu Do Trung Kiena,b,*, Nguyen Vu Uyen Nhia,b, Huynh Ngoc Minha,b and Do Quang Minha,b,*

  • aDepartment of Silicate Materials, Faculty of Materials Technology, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet street, District 10, Ho Chi Minh City, VietNam
    bVietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Lead-free Bi2O3 - B2O3 - ZnO glass is a commonly synthesized glass system at low temperatures for coating applications for materials such as ceramic, glass, metal, etc. TiO2 or Ag/TiO2 composite are usually photocatalyst for antimicrobial application. In this study, TiO2 or Ag/TiO2 were combined with the Bi2O3 - B2O3 - ZnO glass system by the technique of rapid cooling of molten glass at 1200oC. The influence of the TiO2 or Ag/TiO2 on the optical characteristics of the Bi2O3 - B2O3 - ZnO glass system was performed by using X-ray diffraction, Fourier Transform Infrared Spectroscopy, and Ultraviolet-Visible Spectroscopy techniques. The analytical results showed that the band gap energy of the Bi2O3 - B2O3 - ZnO glass system had a low value. The band gap energy of the system increased with the addition of TiO2 and decreased slightly with the addition of Ag/TiO2. In addition, when Ti2O or Ag/TiO2 were added, the glass system appeared crystals such as anatase, rutile and silver oxide on an amorphous background. These crystals cause the system's transmittance to decrease and reflectance to increase. However, the appearance of these crystals promises that Bi2O3 - B2O3 - ZnO glass materials can be applied as antibacterial materials. The antibacterial property is due to the photocatalytic effect of TiO2 and the ability to kill bacteria Ag2O


Keywords: Bi2O3 - B2O3 - ZnO, Ag/TiO2, photocatalyst, antimicrobial application

This Article

  • 2022; 23(3): 350-355

    Published on Jun 30, 2022

  • 10.36410/jcpr.2022.23.3.350
  • Received on Jan 1, 2022
  • Revised on Feb 6, 2022
  • Accepted on Feb 9, 2022

Correspondence to

  • Kieu Do Trung Kien and Do Quang Minh

  • aDepartment of Silicate Materials, Faculty of Materials Technology, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet street, District 10, Ho Chi Minh City, VietNam
    bVietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
    Tel : +(84.8) 8 661 320 Fax: +(84.8) 8 661 843

  • E-mail: kieudotrungkien@hcmut.edu.vn, mnh_doquang@hcmut.ed