中文摘要：

文章研究了TiO2／凹凸棒石复合催化剂对活性金黄BES的吸附动力学，初始质量浓度为150-300mg／L，转速为150r／min，温度为298-328K时，活性金黄BES在复合催化剂上吸附动力学数据能较好地符合准2级动力学方程；结果表明，复合催化剂对活性金黄BES的吸附仅在外表面吸附，吸附表现活化能为25．25kJ／mol，说明此吸附并不是由单一的化学吸附为速率控制步骤，而是由化学吸附和液膜扩散共同控制其吸附过程的。

英文摘要：

The adsorption kinetics of titania coated palygorskite for golden-yellow BES was investigated. The kinetics data of the adsorption of golden-yellow BES were in good agreement with the pseudo-second rate equation as the initial concentration was between 150 mg/L and 300 rag/L, the agitation speed was 150 r/min and the experimental temperature was 298 - 328 K. The results show that golden-yellow BES is only adsorbed on the external surface of TiO2-coated palygorskite. The apparent adsorption activation energy is 25.25 kJ/mol. A relatively low apparent adsorption activation energy suggests that the adsorption of golden-yellow BES may involve not only ehemisorption but also a physicial adsorption process, which is due to the combined control of chemical adsorption and film diffusion.