改性指甲花叶对Cr(Ⅵ)的吸附研究  

Research on adsorption performance of modified leaves of lawsonia inermis in Cr(Ⅵ)adsorption

作　　者：李瑞玲[1] 张爱江[1] 宋标[1] 

机构地区：[1]黄淮学院化学与制药工程学院,驻马店463000

出　　处：《化工新型材料》2017年第6期242-243,246,共3页New Chemical Materials

基　　金：2016年度河南省高等学校重点科研项目资助计划(16A480010)

摘　　要：以改性指甲花叶对Cr(Ⅵ)的吸附率作为评价值标,采用紫外-可见分光光度法,利用单因素实验和正交试验考察吸附时间、吸附温度、pH和吸附剂用量等吸附条件对改性指甲花叶吸附Cr(Ⅵ)离子效率的影响。实验结果表明,改性指甲花叶对Cr(Ⅵ)的最佳吸附条件为:吸附时间40min,吸附温度50℃,吸附pH=3.0,吸附剂用量0.4000g,在此条件下吸附率高达99.22%。The adsorption performance of modified leaves of lawsonia inermis was studied,based on adsorption rate of Cr（Ⅵ）,using ultraviolet-visible spectrophotometry,single factor experiments and orthogonal experiments to investigate the effects of absorption time,absorption temperature,absorption pH and absorbent dose.Results showed that optimization of absorbing technology were：absorption time 40 min,absorption temperature 50℃,absorption pH=3,absorbent dose0.4000 g and the adsorption content of up to 99.22%.

关 键 词：改性指甲花叶 Cr(Ⅵ) 紫外-可见分光光度法 

分 类 号：O647.3[理学—物理化学]