| 水环境中阴离子对表面活性剂光催化降解的影响 |
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| 引用本文： | 夏星辉,云影,雒娟. 水环境中阴离子对表面活性剂光催化降解的影响[J]. 北京师范大学学报(自然科学版), 2000, 36(1): 127-131 |
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| 作者姓名： | 夏星辉 云影 雒娟 |
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| 作者单位： | 1. 北京师范大学环境科学研究所,环境模拟与污染控制国家重点联合实验室,100875,北京
2. 北京师范大学化学系,100875,北京 |
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| 基金项目： | 北京师范大学校科研和教改项目 |
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| 摘 要： | 研究了存在于水环境中的若干重要阴离子对表面活性剂十二烷基苯磺酸钠光催化降解速率的影响，通过投加各种阴离的钠盐进行实验，结果表明：Ｃｌ＾１，ＳＯ＾２－４，ＮＯ＾－３，ＨＣＯ＾－３有减低其光催化降速率的作用；Ｈ２ＰＯ＾－４有加速 低 度时使光催化降解速率增加，而在高浓度时使其减缓 。在实际研究基础上，对影响机理进行了探讨。
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| 关 键 词： | 表面活性剂 阴离子 光催化降解 水环境 |
EFFECTS OF ANIONS ON RATES OF PHOTOCATALYTIC DEGRADATION FOR SURFACTANT |
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| Xia Xinghui,Yun Ying,Luo Juan. EFFECTS OF ANIONS ON RATES OF PHOTOCATALYTIC DEGRADATION FOR SURFACTANT[J]. Journal of Beijing Normal University(Natural Science), 2000, 36(1): 127-131 |
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| Authors: | Xia Xinghui Yun Ying Luo Juan |
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| Abstract: | Experiments are carried out to study the effects of several anions on the photocatalytic degradation rates of sodium dodecyl benzene sulphonate (DBS).Na 2SO 4,NaNO 3,NaCl,NaHCO 3,NaH 2PO 4 and Na 3PO 4 are used to conduct the research. The results reveal that: (1) Cl -,SO 2- 4,NO - 3 and HCO - 3 all retard the rates of DBS degradation at different degrees; (2) H 2PO - 4 accelerates the rate of DBS degradation under the experimental conditions; (3) PO 3- 4 has positive effect at lower concentration and negative effect at higher concentration. Also the influence mechanism of anions on DBS degradation is studied. |
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| Keywords: | surfactant anion photocatalytic degradation water environment |
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