文章摘要
H4SiW12O40复合电纺纤维膜的制备及光催化性能
Preparation and Photocatalytic Performance of H4SiW12O40 Composite Electrospun Fiber Membrane
  
DOI:10.16865/j.cnki.1000-7555.2018.07.030
中文关键词: 静电纺丝  硅钨酸  聚己内酰胺  醋酸纤维素  光催化
英文关键词: electrospinning  H4SiW12O40  polycaprolactam  cellulose acetate  photocatalysis
基金项目:国家自然科学基金资助项目(51172062,51472074);河北省自然科学基金资助项目(E2016209202);河北省“百人计划”项目(E2012100005);河北省高等学校科学研究计划(ZD2018053);华北理工大学国家自然科学基金培育项目(GP201517)
作者单位
李 威,李婷婷,崔向旭,张志明 华北理工大学材料科学与工程学院 河北省无机非金属材料重点实验室,河北 唐山 063210 
摘要点击次数: 12
全文下载次数: 
中文摘要:
      采用静电纺丝法制备了硅钨酸(H4SiW12O40)/聚己内酰胺(PA6)复合纳米纤维膜和H4SiW12O40/醋酸纤维素(CA)复合纳米纤维膜。通过扫描电镜和红外光谱对其形貌和结构进行表征,同时利用这2种纤维膜对甲基橙(MO)溶液在紫外光下进行催化降解。研究结果发现,2种聚合物PA6或CA 与H4SiW12O40之间均存在协同作用,且显著提高了对MO 的光催化降解速率。但H4SiW12O40/PA6复合纤维膜对MO 的光催化降解效果更好,其光催化降解速率几乎是H4SiW12O40/CA复合纤维膜的4倍。
英文摘要:
      Tungstosilicic acid (H4SiW12O40)/polycaprolactam (PA6) composite nanofibrous membrane and H4SiW12O40/cellulose acetate (CA) composite nanofibrous membrane were prepared by electrospinning. Their morphology and structure were characterized by scanning electron microscopy (SEM) and infrared spectroscopy (IR). At the same time, the two kinds of nanofibrous membranes were used to catalyze and degrade the methyl orange (MO) solution under ultraviolet light. The results show that there is synergistic effect between the two carrier polymers and H4SiW12O40. And the photocatalytic degradation efficiency of the two kinds of fibrous membrane on the methyl orange solution is both improved. However, the photocatalytic degradation efficiency of H4SiW12O40/PA6 composite fibrous membrane is almost 4 times higher than that of H4SiW12O40/CA composite fiber membrane.
查看全文   查看/发表评论  下载PDF阅读器
关闭