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首页> 外文期刊>Journal of Polymers and the Environment >Investigation of the Thermosensitive Nanosphere Polymer in Removing Organophosphorus Pesticides from Water and Its Isotherm Study (Case Study: Diazinon)
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Investigation of the Thermosensitive Nanosphere Polymer in Removing Organophosphorus Pesticides from Water and Its Isotherm Study (Case Study: Diazinon)

机译：热敏性纳米球聚合物去除水中有机磷农药的研究及其等温线研究（案例研究：Diazinon）

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摘要

In this research, a novel thermosensitive nanosphere polymer (TNP) was synthesized by copolymerization of N-isopropylacrylamide with 3-allyloxy-1,2-propanediol for the removal of diazinon from water. The characterization of the synthesized adsorbent has been performed by Fourier transform infrared spectrometer, scanning electron microscopy and elemental analysis. Batch adsorption method was performed to investigate the influences of various parameters like pH, temperature and contact time on the adsorption of diazinon. The equilibrium adsorption data of diazinon by TNP was studied by Langmuir, Freundlich, Temkin and Redlich-Peterson model. According to equilibrium adsorption results, the Langmuir, Freundlich and Temkin constants were evaluated to be 0.912 (L/mg), 7.916 (mg/g) (L/mg)(1) and 2.494 respectively at pH 7 and room temperature. Based on Redlich-Peterson model analysis, the equilibrium data for the adsorption of diazinon was conformed well to the Langmuir isotherm model. This method was successfully applied for removal of diazinon from environmental samples. Moreover, in reusing of TNP, the sorption capacity was maintained without any significant change after 10 cycles of sorption-desorption process.
机译：在这项研究中，一种新型的热敏性纳米球聚合物（TNP）是通过N-异丙基丙烯酰胺与3-烯丙氧基-1,2-丙二醇的共聚反应合成的，用于从水中去除二嗪农。合成吸附剂的表征已通过傅立叶变换红外光谱仪，扫描电子显微镜和元素分析进行​​。采用间歇吸附法研究了pH，温度和接触时间等参数对二嗪农酮吸附的影响。用Langmuir，Freundlich，Temkin和Redlich-Peterson模型研究了TNP对二嗪农的平衡吸附数据。根据平衡吸附结果，在pH 7和室温下，Langmuir常数，Freundlich常数和Temkin常数分别为0.912（L / mg），7.916（mg / g）（L / mg）（1 / n）和2.494。根据Redlich-Peterson模型分析，二嗪农吸附的平衡数据与Langmuir等温线模型吻合良好。该方法已成功应用于去除环境样品中的二嗪农。此外，在重复使用TNP的过程中，经过10个吸附-解吸过程后，吸附容量保持不变。

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