首页> 外文会议>International Conference on Traditional and Advanced Ceramics >Effects of Sn Concentration on Chemical Composition, Microstructure and Photocatalytic Activity of Nanoparticulate Sn-Doped TiO_2 Powders Synthesized by Solution Combustion Technique
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Effects of Sn Concentration on Chemical Composition, Microstructure and Photocatalytic Activity of Nanoparticulate Sn-Doped TiO_2 Powders Synthesized by Solution Combustion Technique

机译:溶液燃烧技术合成的纳米颗粒Sn掺杂TiO_2粉末化学成分对化学成分,微观结构和光催化活性的影响

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Utilization of photocatalytic properties of materials can be perceived through a wide range of applications, such as anti-bacterial, water treatment, and self-cleaning materials. It has been established that doping can result in alteration of photocatalytic activities. This study aimed at studying effects of tin concentration on chemical composition, microstructure, band gap energy, and photocatalytic activities of tin-doped titanium dioxide powder synthesized by solution combustion technique. Experimental results revealed that concentration of tin significantly influenced chemical composition of the powders. A semi-quantitative analysis indicated that tin oxide secondary phase increased from 11 to 23 wt%, as the Sn increased from 2.5 to 10 mol%, respectively. Tin concentration, nevertheless, did not significantly influence microstructure of the powders. All powders had average particle size ranging from 13.1 to 13.4 nm, which agglomerated into clusters with average sizes ranging from 103 to 140 nm. A slight increase of band gap energy was observed at higher tin concentration. The most prominent photocatalytic activities, determined from decomposition of methylene blue, was found in the titanium dioxide powder with 2.5 mol% Sn.
机译:可以通过各种应用,例如抗菌,水处理和自清洁材料来感知材料的光催化性能。已经确定,掺杂可导致光催化活动的改变。本研究旨在研究溶液燃烧技术合成的锡掺杂钛二氧化钛粉末化学成分,微观结构,带隙能量和光催化活性的研究。实验结果表明,锡的浓度显着影响了粉末的化学成分。半定量分析表明,氧化锡二次相增加到11至23wt%,因为Sn分别从2.5升至10mol%。然而,锡浓度没有显着影响粉末的微观结构。所有粉末的平均粒度为13.1-13.4nm,其凝聚到平均尺寸范围为103至140nm的簇中。在更高的锡浓度下观察到带隙能量的轻微增加。从亚甲基蓝色分解中发现最突出的光催化活性,在二氧化钛粉末中发现,在2.5mol%Sn中发现。

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