Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8147431 | St. Petersburg Polytechnical University Journal: Physics and Mathematics | 2017 | 8 Pages |
Abstract
The chemical composition and morphological properties of Ñlinoptilolite-bearing materials modified by MnÐ2 have been studied using modern physical methods. Scanning electron microscopy, X-ray spectral microanalysis and optical reflection microscopy were applied. It was experimentally shown that MnÐ2-modified samples with high and low Si/Al ratios differed in such parameters as the layer thickness, the surface concentration, the degree of particle-surface dealumination, and also in morphological peculiarities of the MnÐ2-phase. This phase in the samples with high Si/Al ratios exhibited the structure formed by nanorods of 10-20Â nm in diameter and 500-700Â nm in length. These nanorods are intermeshed in the net which is cross-linked with the surface of clinoptilolite particles. The MnÐ2-modification of the samples was established to result in improving their mechanical and chemical strength as compared with the initial forms.
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Authors
Vadim V. Korablev, Aleksey V. Chechevichkin, Irina K. Boricheva, Vyacheslav V. Samonin,