摘要
采用水热法,葡萄糖为碳源,FeCl_3/FeCl_2配制磁流体,十二烷基苯磺酸钠为活性剂,氨水提供空腔模板合成空心磁性碳微球,并用于重金属Pb^(2+)、Cd^(2+)离子吸附。研究结果表明,空心磁性碳微球对Pb(OH)^+、Pb(OH)_2的吸附效率要大于Pb^(2+)离子,而pH值与Cd^(2+)离子的吸附效率没有正相关性。当投加量为0.25 g/L时,Pb^(2+)、Cd^(2+)离子的去除率分别约为95%和88.5%。磁流体添加量、氨水不影响碳微球对Pb^(2+)、Cd^(2+)离子的吸附效率,但活性剂与Pb^(2+)、Cd^(2+)离子的吸附效率存在着弱的正相关性。
Using glucose as a carbon source,hollow magnetic carbon microspheres were synthesized by hydrothermal method using magnetic assembly,cavity-plate was provided by ammonia with soft template,sodium dodecylbenzene sulfonate was used as an active agent;the adsorption efficiency of Pb^2+and Cd^2+ions were investigated.The results showed that the adsorption rate of Pb(OH)^+and Pb(OH)2 was higher than that of Pb^2+ions by hollow magnetic carbon microspheres;however,the adsorption rate of Cd^2+ions has nonlinear correlation with pH.When the dosage was 0.25 g/L,the removal rates of Pb^2+and Cd^2+ions were about 95%and 88.5%,respectively.The adsorption rates of Pb^2+and Cd^2+ions were not related to the dosage of magnetic fluid and the foaming agent of ammonia,but they had a weak positive correlation with the active agent.
作者
余荣台
刘健聪
马湘
谢志鹏
汪长安
YU Rongtai;LIIU Jiancong;MA Xiang;XIE Zhipeng;WANG Chang'an(School of Materials Science and Engineering,Jingdezhen Ceramic Institute,Jingdezhen 333403,Jiangxi,China;School of Materials Science and Engineering,Tsinghua University,Beijing 100084,China)
出处
《陶瓷学报》
CAS
北大核心
2018年第6期755-759,共5页
Journal of Ceramics
基金
国家自然科学基金(51668023)
江西省科技支撑计划(20151BBF60058)
关键词
碳微球
磁流体
空心
重金属
吸附
carbon microspheres
magnetic fluid
hollow
heavy metal
adsorption
