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等离子体活化过硫酸盐降解对乙酰氨基酚机理研究
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作者 叶朝兵 许子牧 +2 位作者 胡淑恒 兰彦 程诚 《合肥工业大学学报(自然科学版)》 CAS 北大核心 2024年第3期392-397,共6页
过硫酸盐(persulfate,PS)可被活化产生具有强氧化性的硫酸根自由基(SO_(4)^(-)·),利用介质阻挡放电(dielectric barrier discharge,DBD)等离子体活化PS降解水中对乙酰氨基酚(acetaminophen,AP),研究AP初始质量浓度、工作气体流量... 过硫酸盐(persulfate,PS)可被活化产生具有强氧化性的硫酸根自由基(SO_(4)^(-)·),利用介质阻挡放电(dielectric barrier discharge,DBD)等离子体活化PS降解水中对乙酰氨基酚(acetaminophen,AP),研究AP初始质量浓度、工作气体流量和PS投加量对降解效果的影响,利用高效液相色谱-质谱联用仪对可能的降解产物和降解路径进行分析和推测。实验结果表明,等离子体/PS能有效去除水中AP,AP的去除率随着初始质量浓度的增加而降低,气体流量对降解效果影响较大,适当增加流量可促进AP的降解,当流量超过50 L/h后,促进效果逐渐减弱,PS的加入能加速AP的降解,当PS投加量为0.75 g/L时,处理效果最佳。实验处理废水过程中,AP会被分解为小分子物质、CO_(2)和H_(2)O,在添加PS后,矿化率是单独等离子体处理的2.1倍。 展开更多
关键词 介质阻挡放电(DBD) 对乙酰氨基酚(AP) 过硫酸盐(PS) 降解 低温等离子体
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Applications of atmospheric pressure plasma in microbial inactivation and cancer therapy: a brief review 被引量:2
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作者 许子牧 兰彦 +9 位作者 马洁 沈洁 韩伟 胡淑恒 叶朝兵 奚文灏 张雨迪 杨春俊 赵晓 程诚 《Plasma Science and Technology》 SCIE EI CAS CSCD 2020年第10期10-38,共29页
Atmospheric pressure cold plasma, with advantages such as high particle activity, no thermal damage, high efficiency and direct and friendly contact with human tissues, is considered to have great potential in biomedi... Atmospheric pressure cold plasma, with advantages such as high particle activity, no thermal damage, high efficiency and direct and friendly contact with human tissues, is considered to have great potential in biomedical applications. Therefore, 'plasma medicine' as a new interdiscipline has been developed in the past two decades. This review first briefly describes the development of typical plasma sources suitable for biomedical applications, and those with different discharge forms are simply compared, evaluated and summarized. Subsequently, measurement of the crucial gaseous reactive particles(e.g. OH and O) and their spatio-temporal distributions are introduced. Meanwhile, the generation and variation rules and the related critical macroscopic parameters of the plasma-induced aqueous reactive species are summarized. Finally, related studies in the last ten years on the mechanisms of the plasma-driven microbial inactivation and plasma-induced apoptosis of cancer cells are introduced. Moreover, some scientific problems that need to be urgently solved in the field of plasma medicine are also discussed. This review will provide useful guidance for future related research. 展开更多
关键词 atmospheric pressure plasma plasma medicine reactive species BACTERIA cancer cells
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