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以钛酸四丁酯为前驱体,采用溶胶-凝胶法在室温下制备了 Fe~(+3)-Ag/TiO_2纳米微粒。用 Fe~(3+)-Ag/TiO_2做光催化剂,以10 mg/L 的亚甲基蓝溶液为模型化合物,在紫外光下进行了催化降解实验。结果表明:掺杂离子可以有效提高 TiO_2的光催化活性,500℃热处理的 Fe~(3+)-Ag/TiO_2用量为1 g/L、反应6 h 时光催化活性达到93.2%,比纯 TiO_2的光催化活性提高了2.14倍。
Fe ~ (+3) -Ag / TiO 2 nanoparticles were prepared by sol-gel method at room temperature using tetrabutyl titanate as precursor. The photocatalyst was prepared with Fe ~ (3 +) - Ag / TiO 2 and 10 mg / L methylene blue solution was used as a model compound. The photocatalytic degradation was performed under UV light. The results show that the doping ions can effectively increase the photocatalytic activity of TiO 2. The amount of Fe 3+ -Ag / TiO 2 heat-treated at 500 ℃ is 1 g / L and the photocatalytic activity reaches 93.2% at 6 h. Photocatalytic activity increased by 2.14 times.