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BULLETIN OF THE CHINESE CERAMIC SOCIETY ›› 2024, Vol. 43 ›› Issue (8): 3034-3044.

• Glass • Previous Articles     Next Articles

Preparation and Corrosion Resistance Performance of Graphene Oxide/SiO2 Coatings on LAS Glass

CHANG Xizheng1, ZHANG Jihong1,2, HE Jianxiong3, LI Junge3, XIE Jun1,2   

  1. 1. Sanya Science and Education Innovation Park of Wuhan University of Technology, Sanya 572000, China;
    2. State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China;
    3. Hainan Holdings Special Glass Technology Co., Ltd., Haikou 571924, China
  • Received:2024-01-09 Revised:2024-02-22 Online:2024-08-15 Published:2024-08-12

Abstract: In the present work, the graphene oxide (GO)/tetraethyl orthosilicate (TEOS) aqueous solution was prepared by the sol-gel method after investigating the dispersibility of GO in water and ethanol, the complex dispersion of GO powder and its water solution in the hydrolysate of TEOS. The surface and cross section morphology, element distributions of the composite film were analyzed. The influence of GO/SiO2 film on the corrosion resistance of the glass was studied. The results show that 0.05 g GO can be well dispersed into 15 mL deionized water, and a uniform coating solution can be obtained with further TEOS hydrolysate addition. After heat treatment at 600 ℃ for 2 h and under N2 atmosphere, dense GO/SiO2 film can be obtained. The carbon element analysis shows graphene oxide was homogeneously distributed in the film. The corrosion behavior comparison of non-coated, SiO2 film coated and GO/SiO2 composite film coated LAS glass in HCl (1 mol/L) solution and NaOH (5%, mass fraction) solution confirmed that GO/SiO2 composite film can improve the acid corrosion resistance of LAS glass.

Key words: thin film, LAS glass, graphene oxide, tetraethyl orthosilicate, glass corrosion resistance, uniform dispersion

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