纳米碳纤维的固化及其亚甲基蓝吸附性能  

Immobilization of carbon nanofibers and adsorptive property of methylene blue

作　　者：赵立[1] 吴强[1] 韩若冰[1] 石晓燕 

机构地区：[1]上海电力学院环境与化学工程学院,上海200090 [2]国家环境保护大气复合污染来源与控制重点实验室,北京100084

出　　处：《化工新型材料》2014年第11期101-103,共3页New Chemical Materials

基　　金：国家自然科学基金项目(21107069);教育部留学回国人员科研启动基金资助项目(Z-2013-002);上海市浦江人才计划项目(12PJ1403800);国家环境保护大气复合污染来源与控制重点实验室开放基金资助

摘　　要：采用化学气相沉积法(CVD),以甲烷为碳源,金属镍为催化剂,550℃下在不同基体材料(SiO2纤维、蜂窝陶瓷体)上合成了纳米碳纤维。通过场发射扫描电镜(FE-SEM)和X射线粉末衍射仪(XRD)对固化在2种不同基体材料上的纳米碳纤维的形貌和晶相组成进行了表征。对比考察了固化在2种不同基体材料上的纳米碳纤维对亚甲基蓝的吸附性能影响。结果表明,相比于蜂窝陶瓷体,SiO2纤维更容易生成大量致密有序的纳米碳纤维层,并且所得到的复合材料具有更优的吸附亚甲基蓝的反应性能。Carbon nanofibers（CNFs） were synthesized on different substrates（silica fiber,honeycomb ceramic）at 823 K by chemical vapor deposition（CVD）technique,using Ni as catalyst and methane as carbon source. Their morphologies, structures and phases were characterized by field emission scanning electron microscopy（FE-SEM）and X-ray diffraction （XRD）. The effects of different substrate-immobilized CNFs on adsorption of methylene blue were studied and compared. The results showed that silica fiber was much easier to generate a large amount of orientation, dense and orderly CNFs layer than honeycomb ceramic,and the obtained composites had better adsorption performance on methylene blue.

关 键 词：SiO2纤维 蜂窝陶瓷体 化学气相沉积法 纳米碳纤维 亚甲基蓝 吸附 

分 类 号：TQ342.742[化学工程—化纤工业]