The samples containing 1–10% tin dioxide supported onto silica gel have been synthesized via precipitation or thermolysis of tin tetrachloride. The prepared samples have been characterized using DTA–TG, XRD, Raman and UV–Vis spectroscopy, TPD of ammonia, and low-temperature nitrogen adsorption–desorption. The supported samples have been tested as photocatalysts in the process of rhodamine B degradation under visible irradiation. It has been established that the deposited phase is uniformly dispersed on the surface. Redshift of band gap is observed for the supported samples. Unlike a bulk SnO₂, the supported samples exhibit photocatalytic activity under visible irradiation.

中文翻译：

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负载在硅胶上的二氧化锡的物理化学和光催化性能

通过沉淀或热解四氯化锡可以合成载于硅胶上的含有1-10％二氧化锡的样品。使用DTA-TG，XRD，拉曼光谱和UV-Vis光谱，氨的TPD和低温氮吸附-解吸对制备的样品进行了表征。负载的样品已经在可见光照射下在若丹明B降解过程中作为光催化剂进行了测试。已经确定沉积相均匀地分散在表面上。对于所支持的样品，观察到带隙的红移。与块状SnO ₂不同，负载的样品在可见光照射下表现出光催化活性。