Preparation and Performance of Antibacterial Ultra-Clear Glass

Abstract

Abstract: In this paper, a kind of ultra-clear glass with high antibacterial properties was prepared with high temperature melting method by introducing AgNO₃ as the effective antibacterial component. The glass has good visible light transmittance, colorimetric value and antibacterial properties, in which the visible light transmittance of the glass at 380~780 nm is about 91.5%. With the increase of AgNO₃ content, the brightness of glass gradually decreases and the yellow phase increases, but the degree of yellowing is small. The antibacterial rate of glass against Escherichia coli and Staphylococcus aureus is more than 90%. The phase analysis and valence state analysis of Ag were carried out by XRD and XPS, and the dissolution of Ag⁺ in glass samples was analyzed by ICP-OES. XRD and XPS test results show that the glass is amorphous, and the doped Ag element exists in the form of Ag⁺ rather than Ag elemental. In addition, the amount of Ag⁺ dissolved in the glass increases with the increase of time, but the dissolution rate of Ag⁺ decreases. The amount of Ag⁺ dissolved in the glass samples of each group is consistent with the result of antibacterial detection within 24 h, which confirms the antibacterial property of the AgNO₃ in glass.

Key words: antibacterial ultra-clear glass, high temperature melting method, AgNO₃, transmittance, chroma, antibacterial rate

CLC Number:

TQ171

TIAN Yingliang, WEI Xipeng, ZHANG Qingshan, HAN Yanli, HE Feng, ZHAO Zhiyong, LI Bo, YAN Jianhua, HE Youle, WANG Changjun. Preparation and Performance of Antibacterial Ultra-Clear Glass[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2023, 42(12): 4501-4508.

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