Na-CNB光催化材料合成及应用  

Synthesis and Application of Na-CNB Photocatalysts: an Experimental Study

作　　者：崔玉民[1] 开春梅 林美玉[1] 苗慧[1] 陶栋梁[1] 李慧泉[1] CUI Yumin;KAI Chunmei;LIN Meiyu;MIAO Hui;TAO Dongliang;LI Huiquan(Anhui Provincial Key Laboratory for Pollutants Degradation and Environmentgal Monitoring,Fuyang Normal College,Fuyang 236037,China)

机构地区：[1]阜阳师范学院环境污染物降解与监测安徽省重点实验室,安徽阜阳236037

出　　处：《环境科学与技术》2018年第9期17-21,共5页Environmental Science & Technology

基　　金：安徽省自然科学基金项目(1608085MB34);安徽省高校自然科学研究重大项目(KJ2016SD46;KJ2017ZD28);2016年度阜阳市政府-阜阳师范学院横向合作科研项目(XDHX2016002;XDHX2016017);2017年阜阳师范学院科研创新团队项目(kytd201707);大学生创新创业训练计划项目(201610371049;201610371050)

摘　　要：以尿素、四苯硼化钠、氢氧化钠溶液为前驱体,利用浸渍-焙烧法制备了Na OH与CNB不同质量比率的Na-CNB复合光催化剂。采用X射线衍射(XRD)、光致发光光谱(PL)、紫外-可见漫反射(UV-Vis DRS)、红外光谱(IR)等对该催化材料进行了表征,并考察了Na-CNB的紫外光催化活性。结果表明:Na+的掺杂有效地提高了CNB的光催化性能,在所有的Na-CNB光催化剂样品中,Na(0.1)-CNB催化剂具有最高的光催化活性,在优化条件下,紫外光照射2 h,光催化降解甲基橙降解率为69.85%。With urea, four benzene boron sodium and Na OH as precursors, the composite Na-CNB photocatalysts were prepared by the dipping-roasting method. Na-CNB thus prepared were of various mass ratio of Na OH to CNB, and were characterized by XRD, PL, UV-vis DRS and FT-IR. In this experimental study, the activities of Na-CNB photocatalytic under UV were evaluated with methyl orange as photocatalytic reaction model compounds. The results of the evaluation showed that photocatalytic performances of CNB were remarkably improved by Na~＋-doped CNB; and among the samples of Na-CNB photocatalysts, the photocatalyst of Na（0.1）-CNB had the highest UV photocatalytic activity. Under the optimized condition,the rate of photocatalytic degradation（with UV-irradiation for 2 h） of methyl orange reached up to 69.85%.

关 键 词：浸渍-焙烧法 CNB 四苯硼化钠 光催化 甲基橙 Na离子掺杂 

分 类 号：X703.5[环境科学与工程—环境工程]