g-C_(3)N_(4)负载钒取代多酸盐的制备及其对环境有机污染废水的光催化去除研究  

Preparation of g-C_(3)N_(4) Supported Vanadium Substituted Polyacidsalt and Its Photocatalytic Removal of Environmental Organic Polluted Wastewater

作　　者：何虹祥 赵金玲 吴晓亮[2] 刘伟华[2] 赵焕[2] 张丹凤 HE Hong-xiang;ZHAO Jin-ling;WU Xiao-liang;LIU Wei-hua;ZHAO Huan;ZHANG Dan-feng(Shenyang Kejin New Material Co.,Ltd.,Shenyang 110015,China;Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China;Liaoning Institute of Science and Technology,Benxi 117004,China)

机构地区：[1]沈阳科金新材料有限公司,沈阳110015 [2]中国科学院金属研究所,沈阳110016 [3]辽宁科技学院,本溪117004

出　　处：《当代化工》2022年第3期611-614,共4页Contemporary Chemical Industry

基　　金：辽宁省科技厅博士科研启动计划项目(No.2019-BS-129),2020年营口市企业·博士双创计划项。

摘　　要：通过浸渍法制备了氮化碳负载 Keggin 型杂多酸盐(NH_(4))_(4)[PMo_(11)VO_(40)]复合材料(PMoV/g-C_(3)N_(4)),并采用扫描电镜、X 射线衍射、固体紫外光谱及傅里叶红外光谱对所制备的复合材料进行形貌、组成、结构的表征。考察了 PMoV/g-C_(3)N_(4)复合材料在可见光照射下对环境有机污染物废水溶液(磺胺及染料 X-3B)的光催化氧化性能,并探讨了 PMoV/g-C_(3)N_(4)复合材料的光催化氧化机理。结果表明:在不同的复合比例条件下,相比于 PMoV/g-C_(3)N_(4)(1∶2)和 PMoV/g-C_(3)N_(4)(1∶10),PMoV/g-C_(3)N_(4)(1∶5)具有最佳的光催化活性,PMoV 与g-C_(3)N_(4)间复合而产生的协同作用对复合材料的催化能力提高具有主要的促进作用,该研究说明多酸材料在去除环境污染废水方面具有广阔的发展前景。Carbon nitride loaded Keggin type heteropolyacid salt (NH_(4))_(4)[PMo_(11)VO_(40)] composite material(PMoV/g-C_(3)N_(4)) was prepared by dipping method, and the morphology, composition and structure of the prepared composite material were characterized by scanning electron microscope, X-ray diffraction, solid-state ultraviolet spectroscopy and Fourier infrared spectroscopy. The photocatalytic oxidation performance of the PMoV/g-C_(3)N_(4)composite material on the environmental organic pollutant wastewater solution (sulfonamide and dye X-3B) under visible light irradiation was investigated, and the photocatalytic oxidation mechanism of the PMoV/g- C_(3)N_(4)composite material was discussed. The results showed that under different compound ratio conditions, PMoV/g- C_(3)N_(4)(1∶5) had the best performance compared to PMoV/g-C_(3)N_(4)(1∶2) and PMoV/g-C_(3)N_(4)(1∶10). Photocatalytic activity, the synergistic effect produced by the combination of PMoV and g-C_(3)N_(4)had major promotion effect on the improvement of the catalytic ability of the composite material. This study shows that the polyacid material has broad development prospect in the removal of environmentally polluted wastewater.

关 键 词：KEGGIN型杂多酸 g-C_(3)N_(4) 光催化氧化 有机污染废水 

分 类 号：O69[理学—化学]