中文摘要：

在TiO2/Ti—Cu双转盘液膜反应器基础上进行改进，研究制备了以不锈钢为基底的TiO2／Steel／Cu复合转盘液膜反应器（CRPC—Steel），用于对染料活性艳红X-3B的脱色研究，并对脱色条件进行了优化。结果表明：CRPC—Steel在酸性条件下处理50mg／L活性艳红X-3B 30min，脱色率可达86．9％，较TiO2／Steel单转盘提高了64．4％，也优于TiO2／Ti—Cu双转盘液膜反应器。最佳脱色条件为：初始浓度为20mg／L，pH=2．5，Na2SO4为2．0g／L，转速为60rpm。改进的CRPC—Steel降低了反应器成本、简化了实验装置、初步克服了不锈钢基底不耐酸的缺点，为该技术的工程应用奠定了进一步的研究基础。

英文摘要：

A new TiO2/Steel/Cu Complex Rotating disk thin-film photocatalytic reactor （CRPC-Steel） was developed based on the TiO2/Ti-Cu Dual Rotating disks cell thin-film photocatalytic reactor, and was successfully applied to the de-colorization of Reactive Brilliant Red X-3B （RBR）. Results showed that under the acid condition, the color removal efficiency of 50 mg/LRBR by CRPC-Steel within 30 rain reached 86.9 %, which is 64.4 % higher than TiO2/Steel single rotating disk thin-film photocatalytic reactor, and also better than DRPC-Ti. The best experimental conditions were： initial RBR concentration=20 mg/L, pH=2.5, Na2SO4 =2.0 g/L, rotating speed=60 rpm. The improved CRPC-Steel costs much lower than DRPC-Ti, and the experimental device was simplified.