| 超声引发聚苯乙烯磺酸钠的降解 |
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| 引用本文： | 余建刚,朱光军,朱昌平,黄波,倪才华.超声引发聚苯乙烯磺酸钠的降解[J].水资源保护,2011,27(1):55-57. |
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| 作者姓名： | 余建刚 朱光军 朱昌平 黄波 倪才华 |
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| 作者单位： | 1. 河海大学水文水资源与水利工程科学国家重点实验室,江苏,南京,210098;江南大学化学与材料工程学院,江苏,无锡,214122
2. 河海大学水文水资源与水利工程科学国家重点实验室,江苏,南京,210098;河海大学计算机及信息工程学院,江苏,常州,213022 |
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| 基金项目： | 水文水资源与水利工程科学国家重点实验室开放课题，国家自然科学基金 |
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| 摘 要： | 用低功率、高频率的超声波对水溶液中的聚苯乙烯磺酸钠进行降解,研究溶液浓度、pH值等对降解反应的影响,用凝胶色谱法测定降解产物的分子量及其分布,用红外光谱法以及紫外分光光度法表征了降解过程中的产物结构变化,用2,2-二苯基-1-苦肼基(DPPH)对降解过程中产生的自由基进行捕捉,证实降解反应经历了自由基历程。
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| 关 键 词： | 超声波 聚苯乙烯磺酸钠 降解机理 DPPH |
| 修稿时间： | 2011/2/23 0:00:00 |
Degradation of sodium polystyrene sulfonate under ultrasonic irradiation |
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| YU Jian-gang,ZHU Guang-jun,ZHU Chang-ping,HUANG Bo,NI Cai-hua.Degradation of sodium polystyrene sulfonate under ultrasonic irradiation[J].Water Resources Protection,2011,27(1):55-57. |
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| Authors: | YU Jian-gang ZHU Guang-jun ZHU Chang-ping HUANG Bo NI Cai-hua |
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| Affiliation: | 1,2(1.State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Hohai University,Nanjing 210098,China;2.School of Chemical and Material Engineering,Jiangnan University,Wuxi 214122,China;3.College of Computer and Information Engineering,Hohai University,Changzhou 213022,China) |
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| Abstract: | The degradation of sodium polystyrene sulfonate(PSS) in aqueous solution irradiated by ultrasonic waves with low ultrasonic power and high frequency was studied.The effects of PSS concentration and pH value on the degradation were investigated.The molecular weight and distribution of catabolite were measured by gel chromatography,and the structure of catabolite was characterized by infrared spectrometry and ultraviolet spectrophotometry.A radical scavenger of 1,1-diphenyl-2-picrylhydrazyl was used to capture free radicals during the degradation.It was proved that the degradation included a free radical mechanism. |
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| Keywords: | DPPH |
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