二氧化钛复合纸板对甲基橙水溶液的光催化降解

制备了系列植物纤维-陶瓷纤维-二氧化钛复合纸板,考察了它们对甲基橙水溶液的吸附及光催化降解件能.结果表明.二氧化钛复合纸板对甲基橙具有较好的吸附和光催化降解性能,紫外光照射面积为55 cm2的二氧化钛复合纸板2.5 h后可使15mL、浓度为25 ms/L的甲基橙水溶液的色度减小90%以上.二氧化钛复合纸板在该溶液中的稳定性好,反复使用10次,其时甲基橙的光催化降解性能不变,质量仅减小1.1%.

Photocatalytic Degradation of Aqueous Methyl-orange Solution by Titanium Dioxide Composite Sheet

- The eompoaite sheets made of titanium dioxide, plant fiber and ceramic fiber were prepared, and their photocatalytic degradation performance on methyl-orange (MO)in aqueous solution was investigated. The results showed that the sheets exhibited excellent photocata- lytic activity to MO. The color degree of 15 mL of MO solution with the concentration of 25 mg/L was reduced more than 90% using a com- pesite sheet of 55 cm2 irradiated by UV light for 2.5 h. The sheet was stable in the aqueous solution. The photocatalytic activity of the sheet did not decrease, and the mass of the sheet was reduced only 1.1% when it Was used repeatedly for 10 times.