• 关键词：溶胶-凝胶法  釉面瓷砖  TiO₂薄膜  Cr³⁺掺杂  交互作用

• 基金项目：

• 陈建华
• 1. 广西大学资源与环境学院, 南宁 530004; 2. 中南大学冶金科学与工程学院, 长沙 410083

• 王晓林
• 广西大学资源与环境学院, 南宁 530004

• 龚竹青
• 中南大学冶金科学与工程学院, 长沙 410083

• 陈波
• 广西大学资源与环境学院, 南宁 530004

• 摘要：采用溶胶-凝胶法制备了TiO₂粉末和以釉面瓷砖为载体的TiO₂薄膜,讨论了不同Cr³⁺掺杂浓度对TiO₂光催化活性的影响,并采用UVVIS对其光学性能进行了检测.结果表明,Cr³⁺掺杂和釉面瓷砖的交互作用能够显著提高TiO₂薄膜的光催化活性,最佳掺杂浓度为6.04×10¹⁷个·cm^-3,且随着TiO₂光催化活性的提高,薄膜的吸收带边发生了明显的红移,提高了可见光的利用率.

• Abstract：TiO₂ powder and TiO₂ thin films on the surface of ceramic glaze were prepared by sol-gel method. The influences of doping different Cr³⁺ concentrations on the photocatalytic activity of TiO₂ were discussed, and UV-VISwas used to test the optical performance of TiO₂ films. The results showed that the interaction between Cr³⁺ and ceramic glaze increased the photocatalytic activity of the TiO₂ films greatly, and the optimum doping concentration of Cr³⁺ was (6.04×10¹⁷ cm^-3). In addition, with the enhancement of photocatalytic activity of the TiO₂ film, the red shift of its absorption band edge occurred obviously and more visible light could be used.

• Key words：sol-gel method  ceramic glaze  TiO₂ thin films  Cr³⁺-doped  interaction effect

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