|کد مقاله||کد نشریه||سال انتشار||مقاله انگلیسی||ترجمه فارسی||نسخه تمام متن|
|221565||464260||2016||11 صفحه PDF||سفارش دهید||دانلود رایگان|
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- تولید محتوا برای سایت و وبلاگ
- تولید محتوا برای کتاب
- تولید محتوا برای نشریات و روزنامه ها
پایگاه «دانشیاری» آمادگی دارد با همکاری مجموعه «شهر محتوا» با استفاده از این مقاله علمی، برای شما به زبان فارسی، تولید محتوا نماید.
The present investigation describes the performance of NiO NPs/Ag-clinoptilolite zeolite as a novel composite adsorbent for the decontamination of two most known sulfur mustard and nerve agent simulants; chloroethyl ethyl sulfide (CEES) and dimethyl methyl phosphonate (DMMP). The reactions were carried out in both methanol and n-hexane solvents and monitored by GC-FID, 31PNMR and GC–MS analyses subsequently. Moreover, the SEM/EDAX, XRD and FT-IR techniques were applied for characterization of the as-prepared samples. The GC-FID results denoted that CEES was decontaminated on the composite in n-hexane solvent after 12 h at room temperature with a yield more than 86%. Besides, 31PNMR data illustrated that more than 89% of DMMP was decontaminated after 8 h under similar conditions. It seems that non-polar solvent aids the material transfer to the reactive sites on the surface of the composite without blocking them. The rate constant and half-life have been calculated 3.8194 × 10−5 s−1 and 7.3055 × 10−5 s−1, and 1.8640 × 104 s and 9.4860 × 103 s for CEES and DMMP, respectively. The hydrolysis products; hydroxyl ethyl sulfide (HEES) and methyl phosphonic acid (MPA) were also identified by GC–MS analysis. It was emphasized that NiO NPs/Ag-clinoptilolite zeolite composite has a high capacity and potential for the decontamination of CEES and DMMP molecules.
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Journal: Journal of Environmental Chemical Engineering - Volume 4, Issue 3, September 2016, Pages 2990–3000