g-C_(3)N_(4)/PAN+TPU复合纳米纤维膜的制备及其处理印染有机污染物性能研究  

Preparation of g-C_(3)N_(4)/PAN+TPU Composite Nanofiber Membrane and Its Performance in Treating Organic Pollutants from Printing and Dyeing

作　　者：张晗 王立斌 张霞 赵瑞铎 黄姝姝 ZHANG Han;WANG Libin;ZHANG Xia;ZHAO Ruiduo;HUANG Shushu(College of Light Industry and Textile,Inner Mongolia University of Technology,Hohhot 010080,China;College of Textile Engineering,Donghua University,Shanghai 201620,China)

机构地区：[1]内蒙古工业大学轻工与纺织学院,内蒙古呼和浩特010080 [2]东华大学纺织学院,上海201620

出　　处：《分子催化(中英文)》2025年第2期129-140,I0002,共13页Journal of Molecular Catalysis(China)

基　　金：内蒙古自治区自然科学基金项目(No.2021BS02004);内蒙古工业大学博士科研启动项目(No.BS2020035)。

摘　　要：以聚丙烯腈(PAN)和热塑性聚氨酯(TPU)为载体,g-C_(3)N_(4)为负载材料,采用静电纺丝技术制备了一系列纳米纤维膜,以获得在处理印染有机废水方面具有较好过滤和催化性能的材料.通过改变g-C_(3)N_(4)浓度、纺丝电压、纺丝液流速等参数探究最佳纺丝工艺.扫描电镜、傅里叶红外光谱等分析结果显示,不同纺丝工艺对纳米纤维膜的形貌、结构、微观尺寸等具有一定影响.实验结果表明,g-C_(3)N_(4)浓度0.6%、载体PAN/TPU、纺丝电压25 kV、纺丝液流速2.0 mL·h^(-1)条件下制备的纳米纤维膜具有最佳的可见光去除活性艳红效率,可达83.12%.同时,机理实验结果显示在催化去除活性艳红过程中h^(+)、·O_(2)^(-)和·OH是主要的活性物种.In order to generate materials with good filtration and catalytic capabilities in the treatment of printing and dyeing organic wastewater,a series of nanofiber membranes were made by electrospinning technology using PAN and TPU as carrier and g-C_(3)N_(4)as loading material.By adjusting the g-C_(3)N_(4)concentration,spinning voltage,and spinning liquid flow rate,the ideal spinning procedure was examined.The shape,structure,and micro-size of nanofiber films are all influenced by the distinct spinning process,as demonstrated by the findings of scanning and Fourier transform infrared spectroscopy(FTIR)studies.The experimental findings demonstrated that the nanofiber membrane exhibited the highest visible light removal efficiency of 83.12%when subjected to the following parameters:0.6%g-C_(3)N_(4)concentration,carrier PAN/TPU,spinning voltage 25 kV,and spinning liquid flow rate 2.0 mL·h^(-1).Simultaneously,mechanism investigations revealed that the primary active species in the catalytic elimination of reactive brilliant red were h^(+),·O_(2)^(-),and·OH.

关 键 词：氮化碳 静电纺丝 纳米纤维膜 光催化 

分 类 号：O643.36[理学—物理化学]