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热活化过硫酸盐降解水中的普萘洛尔

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马京帅, 吕文英, 刘国光, 陈智明, 黄军磊. 热活化过硫酸盐降解水中的普萘洛尔[J]. 环境化学, 2017, 36(2): 221-228. doi: 10.7524/j.issn.0254-6108.2017.02.2016060204
引用本文: 马京帅, 吕文英, 刘国光, 陈智明, 黄军磊. 热活化过硫酸盐降解水中的普萘洛尔[J]. 环境化学, 2017, 36(2): 221-228. doi: 10.7524/j.issn.0254-6108.2017.02.2016060204
shu
MA Jingshuai, LYU Wenying, LIU Guoguang, CHEN Zhiming, HUANG Junlei. Degradation of propranolol in aqueous solution by heat-activated persulfate[J]. Environmental Chemistry, 2017, 36(2): 221-228. doi: 10.7524/j.issn.0254-6108.2017.02.2016060204
Citation: MA Jingshuai, LYU Wenying, LIU Guoguang, CHEN Zhiming, HUANG Junlei. Degradation of propranolol in aqueous solution by heat-activated persulfate[J]. Environmental Chemistry, 2017, 36(2): 221-228. doi: 10.7524/j.issn.0254-6108.2017.02.2016060204
shu

热活化过硫酸盐降解水中的普萘洛尔

  • 1.

    广东工业大学环境科学与工程学院, 广州, 510006

  • 基金项目:

    国家自然科学基金（21377031），广东省普通高校创新团队建设项目（2015KCXTD007）资助.

Degradation of propranolol in aqueous solution by heat-activated persulfate

  • 1.

    School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China

  • Fund Project: Supported by the National Natural Science Foundation of China (21377031), the Innovative Team Program of High Education of Guangdong Province (2015KCXTD007).

  • 摘要: 利用热活化过硫酸盐（PS）技术降解水中的普萘洛尔（PRO），探究PS初始浓度、温度、初始pH以及自然水体成分对其降解的影响.结果表明，PRO的降解过程符合准一级反应动力学规律，增加PS初始浓度和升高温度都可以显著提高PRO的降解速率常数（kobs）.碱性条件下PRO的降解效果明显好于酸性和中性条件.自由基清除实验表明，在酸性和中性条件下，SO4·-是体系主要的氧化物种，而在碱性条件下，HO·对PRO的降解起主导作用.自然水体中的HCO3-对PRO的降解有显著的促进作用，而腐殖酸（HA）则强烈抑制PRO的降解.增加PS初始浓度可以显著提高PRO的矿化率.
    Abstract: Degradation of propranolol (PRO) in aqueous solution by heat-activated persulfate (PS) was studied. This research focused on the influences of initial PS concentration, temperature, initial pH, and natural water constituents to the degradation efficiency. Experimental results demonstrated that the degradation of PRO followed pseudo-first-order kinetics, and the rate constant (kobs) increased markedly with increasing concentration of PS and temperature. Basic condition was more beneficial for the degradation of PRO than acidic and neutral conditions. Radical scavenging tests revealed that SO4·- was the predominant oxidizing species at acidic and neutral conditions, while HO·played a critical role at basic condition. The presence of bicarbonate manifested enhancing effect on PRO degradation while humic acid (HA) reduced it. Increasing initial PS concentration could significantly improve the mineralization rate of PRO.
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  • 收稿日期:  2016-06-02
  • 刊出日期:  2017-02-15
马京帅, 吕文英, 刘国光, 陈智明, 黄军磊. 热活化过硫酸盐降解水中的普萘洛尔[J]. 环境化学, 2017, 36(2): 221-228. doi: 10.7524/j.issn.0254-6108.2017.02.2016060204
引用本文: 马京帅, 吕文英, 刘国光, 陈智明, 黄军磊. 热活化过硫酸盐降解水中的普萘洛尔[J]. 环境化学, 2017, 36(2): 221-228. doi: 10.7524/j.issn.0254-6108.2017.02.2016060204
shu
MA Jingshuai, LYU Wenying, LIU Guoguang, CHEN Zhiming, HUANG Junlei. Degradation of propranolol in aqueous solution by heat-activated persulfate[J]. Environmental Chemistry, 2017, 36(2): 221-228. doi: 10.7524/j.issn.0254-6108.2017.02.2016060204
Citation: MA Jingshuai, LYU Wenying, LIU Guoguang, CHEN Zhiming, HUANG Junlei. Degradation of propranolol in aqueous solution by heat-activated persulfate[J]. Environmental Chemistry, 2017, 36(2): 221-228. doi: 10.7524/j.issn.0254-6108.2017.02.2016060204
shu

热活化过硫酸盐降解水中的普萘洛尔

  • 1. 广东工业大学环境科学与工程学院, 广州, 510006
  • 收稿日期:  2016-06-02
基金项目:

国家自然科学基金（21377031），广东省普通高校创新团队建设项目（2015KCXTD007）资助.

摘要: 利用热活化过硫酸盐（PS）技术降解水中的普萘洛尔（PRO），探究PS初始浓度、温度、初始pH以及自然水体成分对其降解的影响.结果表明，PRO的降解过程符合准一级反应动力学规律，增加PS初始浓度和升高温度都可以显著提高PRO的降解速率常数（kobs）.碱性条件下PRO的降解效果明显好于酸性和中性条件.自由基清除实验表明，在酸性和中性条件下，SO4·-是体系主要的氧化物种，而在碱性条件下，HO·对PRO的降解起主导作用.自然水体中的HCO3-对PRO的降解有显著的促进作用，而腐殖酸（HA）则强烈抑制PRO的降解.增加PS初始浓度可以显著提高PRO的矿化率.

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