摘要
利用二硫化碳(CS2)改性松针作为新型生物材料,对溶液中Cu^(2+)进行吸附去除。结果表明:当pH=7、吸附剂剂量为0.4g、反应时间为60min时,该材料对100mL 50mg/L含铜废水的去除率达94.7%;伪二级动力学方程能较好地拟合该材料对Cu^(2+)的吸附动力学过程,揭示了其吸附主要是离子交换吸附;Langmuir方程能较好地拟合该材料对Cu^(2+)的等温吸附过程,表明其吸附主要是单分子层吸附。
Carbon disulfide-modified pine needle as a novel biosorbent was investigated to remove Cu2＋from aqueous solution in batch experiment.The results indicated that when the solution pH was 7.0,adsorbate dosage was 0.4g,contact time was 60 min,100mL wastewater containing 50mg/L Cu2＋,the removal rate of material was 94.7%.The kinetic adsorption process of Cu2＋on pine needle modified by carbon disulfide was mainly ion exchange adsorption.Langmuir equation could simulate the material process of isothermal adsorption of Cu2＋,indicating its adsorption was monolayer adsorption.
出处
《化工新型材料》
CAS
CSCD
北大核心
2017年第9期159-161,165,共4页
New Chemical Materials
基金
国家级大学生科技创新计划(201510439050)
关键词
二硫化碳改性松针
CU2+
吸附动力学
pine needle modified by carbon disulfide
cupric ion
adsorption kinetics
