香芋皮对Cu(Ⅱ)的吸附特性及热力学、动力学分析  

Adsorption Characteristics of Cu(Ⅱ) by Taro Peel Including Thermodynamics and Kinetic Analysis

作　　者：陈秋娟[1] 谢微[2] 段振华[2] 何星存[2] 陈珍明[1] 

机构地区：[1]贺州学院材料与环境工程学院,贺州542899 [2]贺州学院食品科学与工程技术研究院,贺州542899

出　　处：《食品工业》2018年第2期184-186,共3页The Food Industry

基　　金：国家自然科学基金资助项目(21367012);广西高等教育本科教学改革工程项目(2017JGA310);贺州学院2017年农业硕士硕士点建设项目

摘　　要：研究以废弃的香芋皮作为新型生物吸附剂,研究了粒径、投加量、p H、温度、时间等因素对吸附性能的影响。研究结果表明:在香芋皮粒径为180目,投加量为1.00 g,p H 5.0,30℃下吸附240 min的条件下,香芋皮粉末对Cu(Ⅱ)的吸附率达到96.10%,吸附量为4.81 mg/g。吸附热力学反应符合Langmuir吸附等温方程,吸附动力学反应符合准二级动力学方程。It was based on abandoned taro peel as a new biological adsorbent. Effects of parameters including size, dosage, pH, temperature and time on the adsorption properties were investigated. The results showed that the adsorption properties could reach a maximum under size of 180 mesh, dosage of 1.00 g, pH of 5.0, temperature of 30 ℃ and time of 240 min. The adsorption rote was 96.10%. Adsorption capacity was 4.81 mg/g. The adsorption reaction was consistent with a Cu （ Ⅱ ） order kinetic equation, and the adsorption isotherm could be described well with the Langmuir equation.

关 键 词：香芋皮 吸附 Cu(Ⅱ) 

分 类 号：TQ424[化学工程]