合成碳羟磷灰石对六价铬离子的吸附研究  

STUDY ON ADSORPTION CHARACTERISTIC OF CARBONATE HYDROXYLAPATITE FOR HEXAVALENT CHROMIUM ION FROM AQUOUS SOLUTION

作　　者：杨明珍[1] 殷海荣[1] 陈国平[1] 祖全先[1] 冯敏鸽[1] 汪涛[1] 

机构地区：[1]陕西科技大学材料科学与工程学院,陕西西安710021

出　　处：《陕西科技大学学报（自然科学版）》2011年第2期5-7,13,共4页Journal of Shaanxi University of Science & Technology

摘　　要：利用沉淀法制备了碳羟基磷灰石(CHAP),并用它作吸附剂,以去除溶液中的六价铬,讨论了pH值、吸附时间、吸附温度、CHAP用量等因素对吸附效果的影响.结果表明:常温下,溶液pH值为5,用一定量5 g/L的CHAP,搅拌吸附时间为30 min时,对Cr6+的吸附去除基本上达到平衡,去除率可达94.16%,最大吸附量为23.54 mg/g.Carbonate hydroxyapatite（CHAP） synthesized by precipitation method is used as a sorbent to remove hexavalent chromium in solution,and the effects of pH value,adsorption time,adsorption temperature,CHAP dosage on the adsorption result are discussed in the work.The results show that： at room temperature,5 of pH value of solution,stirring adsorpted 30 min with a certain amount of 5 g/L CHAP,the adsorption removal of Cr6＋ basically reach to the equilibrium,the removal is up to 94.16%,the maximum adsorption capacity is to 23.54 mg/g.

关 键 词：碳羟基磷灰石 吸附性能 六价铬离子 

分 类 号：TQ028.15[化学工程]