菜花状锶掺杂SnO2纳米粒子光催化降解

IF 1.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Technology Pub Date : 2023-04-12 DOI:10.1080/02670836.2023.2197725

S. Vallimeena, B. Helina

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引用次数: 0

摘要

通过简单的共沉淀法，在室温下合成了三维(3D)菜花状锶(Sr)掺杂的SnO2纳米颗粒。3D菜花形状的7wt -% sr掺杂SnO2纳米粒子增加了光捕获特性，也促进了电子跨晶界的传递。电化学阻抗谱验证了三维花椰菜形sr掺杂SnO2纳米粒子具有较低的电荷转移电阻。对SnO2和sr掺杂SnO2的XRD研究显示其呈四方结构，PL谱图证实其有较大的电荷分裂。该研究可能是首次报道菜花形7wt -% sr掺杂SnO2纳米颗粒的三维微观结构，在可见光下对MB染料溶液表现出更高的光催化活性。

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Cauliflower-like strontium-doped SnO2 nanoparticles for photocatalytic degradation

Three-dimensional (3D) cauliflower-shaped Strontium (Sr)-doped SnO2 nanoparticles were synthesised at ambient temperature through a simple co-precipitation technique. The 3D cauliflower-shaped 7 wt-% Sr-doped SnO2 nanoparticles increase light harvesting features and also promote electron transport across grain boundaries. 3D cauliflower-shaped Sr-doped SnO2 nanoparticles offer low charge transfer resistance, which is validated by the electrochemical impedance spectroscopy spectrum. XRD studies of SnO2 and Sr-doped SnO2 have revealed a tetragonal structure, and PL spectra corroborate the greater charge splitting. This study may be the first ever report on the 3D microstructure of cauliflower-shaped 7 wt-% Sr-doped SnO2 nanoparticles that demonstrated higher photocatalytic activity under visible-light for MB dye solution.

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来源期刊

Materials Science and Technology 工程技术-材料科学：综合

CiteScore

2.70

自引率

5.60%

发文量

审稿时长

3 months

期刊介绍：《Materials Science and Technology》（MST） is an international forum for the publication of refereed contributions covering fundamental and technological aspects of materials science and engineering.