CAJ | 학술논문

通过烯基铁卟啉分别和苯乙烯、丙烯腈及甲基丙烯酸甲酯共聚制备三种卟啉化聚合物，然后利用静电纺丝技术将这三种卟啉共聚物与TiO2颗粒共纺制备卟啉共聚物纤维膜负载TiO2光催化剂。扫描电子显微镜( SEM)表征结果显示卟啉共聚物纤维负载TiO2催化剂都具有良好的纤维结构，纤维直径约为1．0-2．0μm。X-射线衍射仪( XRD)则表明TiO2的晶型在纺丝前后都没有受到明显影响。对甲基橙溶液的催化降解实验结果显示：铁卟啉-丙烯腈共聚物负载TiO2催化剂的光催化活性最高，而且铁卟啉的含量对催化剂催化活性起着非常重要的作用。优化后的铁卟啉-丙烯腈共聚物纤维膜负载TiO2光催化剂对甲基橙溶液的脱色率达到76．3%，同时纤维膜结构有利于催化剂的回收和重复使用。
통과희기철계람분별화분을희、병희정급갑기병희산갑지공취제비삼충계람화취합물，연후이용정전방사기술장저삼충계람공취물여TiO2과립공방제비계람공취물섬유막부재TiO2광최화제。소묘전자현미경( SEM)표정결과현시계람공취물섬유부재TiO2최화제도구유량호적섬유결구，섬유직경약위1．0-2．0μm。X-사선연사의( XRD)칙표명TiO2적정형재방사전후도몰유수도명현영향。대갑기등용액적최화강해실험결과현시：철계람-병희정공취물부재TiO2최화제적광최화활성최고，이차철계람적함량대최화제최화활성기착비상중요적작용。우화후적철계람-병희정공취물섬유막부재TiO2광최화제대갑기등용액적탈색솔체도76．3%，동시섬유막결구유리우최화제적회수화중복사용。
Three porphyrinated polymers were synthesized via copolymerization of vinyl porphyrin with methyl methacylate,styrene and acrylonitrile,respectively. By coelectrospinning with TiO2 particles,these porphyrinated polymers were prepared into fiber mats and used as the supporting materials for TiO2 . SEM images showed that all the three samples were prepared into well-defined fibers with diameters arrange from 1 to 2 μm. The XRD characterizations demonstrated that the electrospinning process had no effect on the anatase structure of TiO2. The photocatalytic activities of the three fiber mats were examined for the photodegradation of methyl orange in aqueous solution under the irradiation of visible light. The results showed that this polyacrylonitrile fiber mat supported TiO2 photocatalyst was very efficient for the photodegradation of methyl orange with decoloration percent being over 76. 3%. It is worth nothing that the larger fiber mat could greatly facilitate the recovery and reuse of the catalyst.