富氧官能团纳米碳/伊利石复合材料的制备及吸附性能研究  

Fabrication of Rich Oxygen Functional Groups Nano-C/Illite Composite and Its Adsorption Performance

作　　者：王珊[1] 王高锋[1] 孙文[1] 郑水林[1] 

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083

出　　处：《硅酸盐通报》2017年第7期2326-2331,共6页Bulletin of the Chinese Ceramic Society

基　　金：中央高校基本科研业务费项目(2010YH10;2015QH01)

摘　　要：以伊利石为载体、葡萄糖为碳源,采用水热碳化、低温热处理法制备出富氧官能团纳米碳/伊利石复合材料,结合红外吸收光谱(FTIR)、热重(TG)、扫描电镜(SEM)、能谱分析(EDS)和N_2吸附-脱附曲线、Boehm滴定等表征手段,探究富氧官能团纳米碳/伊利石复合材料的表面性质,并对影响复合材料吸附性能的因素进行了研究。结果表明:葡萄糖水热产物以无定形纳米碳形式均匀负载在伊利石表面,使复合材料表面含氧官能团数量得到增加;在水热碳矿比3∶1,煅烧温度300℃,溶液初始pH=8的条件下,复合材料对溶液中亚甲基蓝吸附效果最好,亚甲基蓝的去除率为99.368%。An rich oxygen functional groups nano-C/illite composite was fabricated using illite as carrier and glucose as carbonaceous source by a hydrothermal carbonation process and low-temperature heat treatment. The surface properties of rich oxygen functional groups nano-C/illite were explored,combined with fourier transform infrared speetrometry（ FTIR）, thermogravimetry（ TG）, scanning electron microscope（ SEM）, energy dispersive spectrdmeter（ EDS）, N_2 adsorption-desorption and Boehm titration,and the effect of different factors on the adsorption performance were investigated. The results show that hydrothermal products of glucose are uniformly loaded on the surface of illite in the form of amorphous nanocarbon,and the number of oxygen-containing functional groups on the surface of the composite increase. The adsorption of methylene blue on the composite is the best at C/illite of 3∶ 1,the calcination temperature of 300 ℃,and the initial pH of 8. The removal rate is 99. 368%.

关 键 词：伊利石 水热碳化法 低温热处理 吸附 亚甲基蓝 

分 类 号：TU599[建筑科学—建筑技术科学]