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Author:

程荣 (程荣.) | 戚道铎 (戚道铎.) | 董伟娜 (董伟娜.) | 王建龙 (王建龙.)

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Abstract:

五氯酚是一种需要优先控制的高毒性污染物.该文以自制的纳米铁为原料,考察了硝酸盐对纳米铁降解五氯酚的影响.采用化学还原法制备了纳米铁,测定了不同浓度硝酸盐存在时五氯酚及氯离子的浓度变化情况,分析了五氯酚的降解产物及纳米铁的转化产物.结果表明:当五氯酚初始浓度为0.1 mmol/L时,硝酸盐浓度低于1 mmol/L时无明显影响;硝酸盐浓度达到2 mmol/L时,五氯酚的降解受到明显抑制;硝酸盐浓度≥3 mmol/L时,五氯酚的降解几乎被停止.硝酸盐影响五氯酚的脱氯过程,硝酸盐存在时五氯酚更易产生氧化产物.但有无硝酸盐存在时,纳米铁均转化为Fe2O3/Fe3O4和FeOOH.

Keyword:

硝酸盐 纳米铁 脱氯 降解 五氯酚

Author Community:

  • [ 1 ] [程荣]清华大学
  • [ 2 ] [戚道铎]北京工业大学
  • [ 3 ] [董伟娜]北京工业大学
  • [ 4 ] [王建龙]清华大学

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Source :

清华大学学报(自然科学版)

ISSN: 1000-0054

Year: 2010

Issue: 6

Volume: 50

Page: 877-880

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: 3

Chinese Cited Count:

30 Days PV: 1

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