硅藻土／钢渣复合吸附材料的制备及表征分析

摘要

采用硅藻土和钢渣为基材进行复配，制备出的复合吸附材料具有良好的除磷性能。最佳制备条件为：硅藻土与钢渣的质量比为5∶5，黏结材料、致孔材料占混合物质量分别为20％，8％，制备烧结温度及时间分别确定为为700℃和120 min。通过扫面电镜和显微镜，对基材和复合吸附材料的微观结构进行分析和对比，复合吸附材料表面和内部结构中出现了明显的孔隙，有利于吸附反应的进行。FITR分析结果显示，硅藻土与钢渣作为基材，均参与了制备反应。%Diamate and slag is used as basic materials to prepare composite absorbent ,which has better phosphorus removal performance .The optimistic preparation conditions should be:5∶5 of diamate/slag ,20% of adhesive ,8% of proe-form-ing agent and 700 ℃ of calcined temperature for 120 min .Through the contrast analysis of SEM and microscope ,pores ap-pear in the composite adsorbent and the pore structure is helpful for adsorption properties .FITR analysis shows that when di-atomite and slag is used as raw materials ,they two take part in the preparation reaction .