Abstract

The preparation of zirconium hydrogen phosphate, α-Zr(HPO₄)₂ · H₂O (α-ZrP), and its tin dopped derivatives were described. The structural and textural properties of the prepared materials were examined and their effect on catalytic performance in the removal of dyes such as methyl red and methylene blue from the aqueous solutions was revealed. The crystalline zirconium hydrogen phosphate was prepared by the interaction between zirconium tetrachloride and phosphoric acid in the presence of fluoric acid. The α-ZrP samples doped with tin were obtained by the impregnation method. X-ray diffraction, energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, Raman spectroscopy and nitrogen adsorption analysis were applied to explore the structural and textural properties of α-ZrP modified by the addition of various amounts of tin. The obtained results indicated a significant effect of the tin amount on these properties. As a result of tin addition, a gradual decrease in the crystallinity of the samples was observed with the appearance of preferred orientation for the [002] planes. These changes coincided with an increase in the surface area and the total pore volume as well as a decrease in pore diameter. Investigation of the photocatalytic activity of the studied materials in the degradation methyl red and methylene blue indicated a significant increase in the degradation extent of the dyes with increasing amount of tin.

中文翻译：

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结构和质地方面对锡金属掺杂磷酸氢锆光催化性能的影响

摘要

磷酸氢锆α-Zr（HPO ₄）₂  ·H ₂的制备描述了O（α-ZrP）及其锡掺杂的衍生物。检查了所制备材料的结构和质地特性，并揭示了它们对从水溶液中除去染料如甲基红和亚甲基蓝的催化性能的影响。通过在氟化酸存在下四氯化锆和磷酸之间的相互作用来制备结晶磷酸氢锆。通过浸渍法获得了掺锡的α-ZrP样品。通过X射线衍射，能量色散X射线光谱，傅立叶变换红外光谱，拉曼光谱和氮吸附分析，研究了添加不同量锡所修饰的α-ZrP的结构和织构性质。获得的结果表明锡量对这些性能的显着影响。作为添加锡的结果，观察到样品的结晶度逐渐降低，并且出现了[002]面的优选取向。这些变化与表面积和总孔体积的增加以及孔径的减小相吻合。对所研究材料在降解甲基红和亚甲基蓝中的光催化活性的研究表明，随着锡含量的增加，染料的降解程度显着增加。这些变化与表面积和总孔体积的增加以及孔径的减小相吻合。对所研究材料在降解甲基红和亚甲基蓝中的光催化活性的研究表明，随着锡含量的增加，染料的降解程度显着增加。这些变化与表面积和总孔体积的增加以及孔径的减小相吻合。对所研究材料在降解甲基红和亚甲基蓝中的光催化活性的研究表明，随着锡含量的增加，染料的降解程度显着增加。