氧化铝表面处理对吸附腐殖酸的影响

Effects of Adsorption Capacity of Aluminum Oxide Surface Treatment on Hmic Acid

采用酸、碱和金属盐表面修饰处理,影响氧化铝表面结构和成份分布,以达到提高吸附性能的目的。研究表明,经酸处理和酸性条件下的钙镁修饰处理的氧化铝,其对腐殖酸的吸附能力比Al-500分别提高32.3％和23.8％。同时,就改性氧化铝去除腐殖酸的影响条件、动力学、热力学性能进行了讨论。

Using acid and alkali and metallic salts for surface treatment might influence the structure and distribution of components of aluminum oxide surface for raising the adsorption character of the surface. The results indicated that the capacity of adsorption of aluminum oxide treated by acid and coating with Ca, Mg under acidic condition raised 65.4％ and 48.1％ more than Al-500 respectively. Factors affecting adsorption and behavior of dynamic, thermodynamic were also discussed.