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Heterogeneous photocatalytic degradation of organic dyes by highly efficient GdCoSnO3
Materials Science and Engineering: B ( IF 3.6 ) Pub Date : 2021-01-12 , DOI: 10.1016/j.mseb.2020.115028
Iqra Muneer , Muhammad Akhyar Farrukh , Dilawar Ali , Farooq Bashir

The influence of calcination temperature on the photocatalytic activity of quaternary metal oxide nanocomposite i.e. gadolinium (Gd) doped cobalt tin oxide (CoSnO3) have been explored. The synthesis of nanocomposite material was completed in two steps using a novel method. The synthesized nanocomposite material was subjected to various characterization techniques like thermogravimetric analysis (TGA), X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR), particle size analyzer (PSA), UV–Visible and photoluminescence spectroscopy in order to investigate its thermal, structural, and optical properties. The crystallite size, particle size and optical band gap estimated via XRD, PSA and UV–Visible spectroscopy, respectively reveals an increasing trend with calcination temperature. The Gd doped CoSnO3 nanocomposite material is found to be very efficient visible light photocatalyst. The photo-degradation efficiency in the presence of sunlight in degrading methylene blue and methyl orange is more than 90%. An insight mechanism of electron/hole trapping using electronic configuration has also been explored.



中文翻译:

高效GdCoSnO 3异质光催化降解有机染料

煅烧温度对季金属氧化物纳米复合材料即ie(Gd)掺杂的钴锡氧化物(CoSnO 3)的光催化活性的影响)已被探索。纳米复合材料的合成使用新方法分两个步骤完成。对合成的纳米复合材料进行了各种表征技术,例如热重分析(TGA),X射线衍射(XRD),傅立叶变换红外光谱(FTIR),粒度分析仪(PSA),紫外可见光和光致发光光谱,以便进行研究。它的热,结构和光学特性。通过XRD,PSA和紫外可见光谱估计的微晶尺寸,粒径和光学带隙分别显示出随煅烧温度的增加趋势。掺Gd的CoSnO 3发现纳米复合材料是非常有效的可见光光催化剂。在日光存在下降解亚甲基蓝和甲基橙的光降解效率大于90%。还已经探索了使用电子结构的电子/空穴俘获的洞察力机制。

更新日期:2021-01-13
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