王虹,王崧鸿,王鑫

• 1:天津工业大学材料科学与工程学院
• 2:天津工业大学省部共建分离膜与膜过程国家重点实验室

摘要(Abstract)：

针对多壁碳纳米管（MWCNTs）去除染料过程中存在吸附饱和后需额外进行固液分离、纯多壁碳纳米管膜抗折强度低且易碎等问题，以高强度的活性炭基微孔炭膜（C膜）为基膜，使用磁控溅射法生长Ni基催化剂，再使用化学气相沉积法在负载催化剂的膜表面生长MWCNT以制备MWCNTs/C膜，将所得MWCNTs/C膜浸渍在浓硝酸中12 h获得MWCNTs/C-ac膜；运用扫描电子显微镜（FESEM）、拉曼光谱（Raman）、透射电子显微镜（TEM）、孔径分布仪对MWCNTs/C膜的表面形貌和孔径分布、MWCNTs的结晶度和管径进行表征；分别以C膜、MWCNTs/C膜和MWCNTs/C-ac膜作为吸附剂，考察其对废水中亚甲基蓝的吸附去除性能。结果表明：MWCNTs均匀分布在C膜上，内径约为2～4 nm且结晶度较高；负载MWCNTs后可以显著减小C膜的孔径，而经过浓硝酸处理后的MWCNTs/C-ac膜的孔径增大；在常温常压下，当亚甲基蓝质量浓度为10 mg/L、pH值为11且溶液体积为50 mL时，C膜、MWCNTs/C膜和MWCNTs/C-ac膜对亚甲基蓝的去除率分别为54%、96%和97%，经过5次重复实验后结果显示，它们对亚甲基蓝的吸附去除性能均表现出良好的稳定性。

关键词(KeyWords)： 多壁碳纳米管(MWCNTs);炭膜;亚甲基蓝废水;吸附法

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目（21676200）;; 教育部创新研究团队资助项目（IRT-17R80）;; 天津市科技计划资助项目（17JCYBJC19800,18PTZWHZ00210）

作者(Author): 王虹,王崧鸿,王鑫

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