光催化
四方晶系
材料科学
共沉淀
扫描电子显微镜
纳米颗粒
兴奋剂
金红石
带隙
二氧化锡
化学工程
锡
纳米技术
核化学
晶体结构
结晶学
冶金
化学
光电子学
催化作用
复合材料
工程类
生物化学
作者
Sabrina Roguai,A. Djelloul
出处
期刊:Research Square - Research Square
日期:2021-05-17
标识
DOI:10.21203/rs.3.rs-513448/v1
摘要
Abstract Iron-doped tin dioxide nanoparticles Sn 1-x Fe x O 2 (0% ≤ x ≤ 10% ), were prepared by coprecipitation method. X-ray diffraction (XRD) patterns indicate that Sn 1-x Fe x O 2 nanoparticles (NPs) crystallize in the tetragonal rutile-like structure. Scanning Electron Microscope (SEM) observations did not show more modification of the SnO 2 morphology with Fe addition. All the results are consistent with the fact that Fe is strongly soluble in SnO 2 host. The optical band gap energy decreased from 3.65 to 3.30 eV with increasing the iron doping concentration in the solution. Finally, the photocatalytic efficiency of Fe 0.05 Sn 0.95 O 2 nanoparticles (NPs) was examined for the degradation of MB in aqueous solution under UV irradiation. It was found that smaller bandgap of Fe doped SnO 2 photocatalyst resulted in a prominent increase in photocatalytic activity of nanoparticles against Methylene Blue (MB) under UV irradiaion.
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