Abstract

The effect of magnetic activation on the surface characteristics of clinoptilolite, such as particle size, surface area, pore size, and distribution, were determined. Magnetic activation was performed in an ultrahigh frequency electromagnetic field (UHF EMF) and a weak pulsed magnetic field (WPMF). A significant effect of magnetic activation was detected: particle aggregation during treatment of clinoptilolite with UHF EMF and dispersing the particles when exposed to WPMF. The average particle size of the zeolite was increased by 134 nm when treated with UHF EMF and significantly decreased by 560 nm when exposed to WPMF. An increase in modality under the influence of EMF was found. The specific adsorption capacity was increased by 1.3 and 7 times when treated in WPMF in comparison with the UHF EMF-activated sample and natural clinoptilolite, respectively. The Gaussian distribution of clinoptilolite particles as a result of the WPMF aftereffect was found. Magnetic activation practically did not affect the specific surface area of clinoptilolite. The pore volume and the relative value of dV/dlog(D) were increased to a greater extent under the influence of WPMF compared to the data obtained when the sample was treated with UHF EMF and on natural clinoptilolite.

中文翻译：

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磁活化斜发沸石的表面特性

摘要

确定了磁活化对斜发沸石的表面特性的影响，如粒径，表面积，孔径和分布。在超高频电磁场（UHF EMF）和弱脉冲磁场（WPMF）中执行磁激活。检测到磁活化的显着效果：在用UHF EMF处理斜发沸石的过程中颗粒聚集，并在暴露于WPMF时分散颗粒。用UHF EMF处理时，沸石的平均粒径增加了134 nm，而暴露于WPMF时则明显降低了560 nm。发现在EMF的影响下模态的增加。与UHF EMF活化样品和天然斜发沸石相比，在WPMF中处理后，比吸附容量增加了1.3倍和7倍，分别。发现由于WPMF后效应，斜发沸石颗粒的高斯分布。磁活化实际上不影响斜发沸石的比表面积。孔体积和相对值与样品用UHF EMF和天然斜发沸石处理后得到的数据相比，在WPMF的影响下，dV / d log（D）的增加更大。