化工学报Issue(11)：4689-4695,7.DOI:10.11949/j.issn.0438-1157.20150458
改性碳纳米管/壳聚糖复合材料的制备及防污性能
Preparation of modified multiwalled carbon nanotubes/chitosan composites and their antifouling properties
摘要
Abstract
By controlling the pH of the solution, single-layer dopamine modified multiwalled carbon nanotubes (micaDA-MWCNTs) were prepared under acid condition. Multiwalled carbon nanotubes/chitosan (CS/micaDA-MWCNTs) composites were prepared by covalent grafting method with glutaraldehyde as a bridge material between chitosan and multi-walled carbon nanotubes (MWCNTs). The structure and nature of CS/micaDA-MWCNTs composites were characterized by transmission electron microscope (TEM), Fourier transform infrared spectroscopy (FT-IR) and thermal gravimetric analysis (TGA). The results showed that about 6 nm membrane layer of chitosan was well-distributively coated on the surface and the end of MWCNTs. The effective biocompatible strategy of dopamine monolayer film coated carbon nanotubes can not only achieve the purpose of modification with less damage of carbon nanotube structure, but also increase significant amounts of surface active groups of MWCNTs, thereby increasing the content of grafted chitosan. Thermogravimetry analysis (TGA) data showed the chitosan graft was approximately 71.78%. CS/micaDA-MWCNTs had the advantages of both CS and MWCNTs in bacteriostasis, sustained-release effect and diatom growth inhibition. Antifouling experiments indicated that the composites had an efficient broad-spectrum of antibacterial activity againstE.coli, S.aureus,Vibrio anguillarum,Navicula parva andNavicula rows.关键词
复合材料/制备/纳米材料/多巴胺/多壁碳纳米管/壳聚糖Key words
composites/preparation/nanomaterials/dopamine/MWCNTs/chitosan分类
通用工业技术引用本文复制引用
陈守刚,刘丹,王洪芬..改性碳纳米管/壳聚糖复合材料的制备及防污性能[J].化工学报,2015,(11):4689-4695,7.基金项目
国家自然科学基金项目（51072188，51572249）；山东省科技攻关计划项目（2013GHY11508）。@@@@supported by the National Natural Science Foundation of China(51072188,51572249)and the Shandong Province Programs for Science and Technology Development (2013GHY11508) （51072188,51572249）
