| 光催化氧化-分光光度法测定自然水体中痕量总氮 |
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| 引用本文： | 陈国松,叶友胜,张红漫,张之翼,陆小华.光催化氧化-分光光度法测定自然水体中痕量总氮[J].南京师大学报,2006,29(4):58-60,65. |
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| 作者姓名： | 陈国松 叶友胜 张红漫 张之翼 陆小华 |
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| 作者单位： | [1]南京工业大学理学院,江苏南京210009 [2]南京工业大学化工学院,江苏南京210009 |
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| 基金项目： | 国家自然科学基金;国家自然科学基金;江苏省环保科研项目;江苏省社会发展基金 |
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| 摘 要： | 用超细TiO2紫外光催化氧化反应器将各类含氮化合物完全转化为硝酸盐后用紫外分光光度法定量测定．以对硝基苯酚为主要研究对象，研究了多种光催化反应条件对降解率的影响．用本文方法对多种典型含氮化合物和自然水样进行了预氧化分解处理，痕量总氮的测出率达到95％以上，试样分解时间6min以内，且为连续流动方式，在水质在线监测方面具有良好的应用前景．
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| 关 键 词： | 二氧化钛 光催化氧化 紫外分光光度法 对硝基苯酚 含氮化合物 自然水体 总氮 |
| 文章编号： | 1001-4616（2006）04-0058-03 |
| 收稿时间： | 2006-07-28 |
| 修稿时间： | 2006-07-28 |
Investigation on the Spectrophotometric Determination of Trace Total Nitrogen in Natural Water by Photocatalytic Oxidation |
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| Chen Guosong,Ye Yousheng,Zhang Hongman,Zhang Zhiyi,Lu Xiaohua.Investigation on the Spectrophotometric Determination of Trace Total Nitrogen in Natural Water by Photocatalytic Oxidation[J].Journal of Nanjing Normal University(Natural Science Edition),2006,29(4):58-60,65. |
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| Authors: | Chen Guosong Ye Yousheng Zhang Hongman Zhang Zhiyi Lu Xiaohua |
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| Institution: | 1. College of Science, Nanjing University of Technology, Nanjing 210009, China;2. College of Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China |
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| Abstract: | A novel degradation method for the determination of trace nitrogen was proposed, h was based upon the fact that nitrogen in various compounds could be transformed into nitrate, which was fuirther determined by UV spectorphotometry. Several effects on the ratio of catalytic degradation were discussed according to nitrobenzene. Typical nitrogenous compounds and natural water were decomposed by the proposed method. Recoveries of trace total nitrogen were 95% and above. The degradation time is less than 6 min with a continuously floating manner. It could be easily improved to be an online monitoring method. |
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| Keywords: | titanium dioxide photocatalytic oxidation UV spectrophotometry p-nitrophenol nitrogenous compounds natural water total nitrogen |
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