新型TiO_(2)复合光催化材料在水质总氮连续流动分析中的应用  

作　　者：吴军 姚志建 杨步久 沈松土 徐梦婷 焦伟 

机构地区：[1]钱江水利开发股份有限公司,浙江杭州310000 [2]南京大学环境学院,江苏南京210000 [3]杭州瑞逸鑫实业有限公司,浙江杭州310012 [4]浙江钱水检测科技有限公司,浙江丽水323000

出　　处：《环境保护与循环经济》2023年第5期73-76,共4页environmental protection and circular economy

摘　　要：将TiO_(2)与金属有机骨架结合,采用溶剂热法合成了新型光催化材料,并设计了一种光催化反应器,使其用于水质总氮连续流动分析。连续流动分析仪中光催化反应器将各类含氮化合物完全转化为硝酸盐后进行定量测定。以对氨基乙酸为主要研究对象,优化了样品浓度、光催化温度和光催化时间对催化效率的影响,开发了基于新型TiO_(2)复合光催化材料的水质总氮流动分析方法,该方法不仅催化降解效率高,而且稳定性好、准确度高,检测结果和国标手工法具有较好的一致性,可广泛适用于不同类型水质的总氮检测。Combining TiO_(2) with the metal organic skeleton,a new photocatalytic material was synthesized,and a photocatalytic reactor was designed to make it used for continuous flow analysis of total nitrogen in water.The photocatalytic reactor in the continuous flow analyzer could completely convert all kinds of nitrogen-containing compounds into nitrate,and then perform quantitative determination.Taking aminoacetic acid as the main research object,optimize the sample concentration,photocatalytic temperature and photocatalytic time,develop a flow analysis method for total nitrogen in water based on new TiO_(2) composite photocatalytic materials,it not only has high catalytic degradation efficiency,also with good stability,high accuracy,its detection results has good consistency with national standard manual method,can be widely used for different types water quality for total nitrogen detection.

关 键 词：TiO_(2)复合光催化 总氮 连续流动 

分 类 号：X824[环境科学与工程—环境工程]