Abstract

In this research, tin oxide nanoparticles (SnO₂-nanoparticles) are synthesized using sol–gel method in polymeric bed and considering the principals of green chemistry. Tin chloride and gelatin were used as tin precursor and stabilizing agent, respectively. The obtained gel was calcined in different temperatures (600, 700, and 800 °C). Different analyses such as TG–DTA, EDX, XRD, FT-IR, TEM, and FESEM were performed to examine the prepared nanoparticles. Results of XRD, TEM, and FESEM showed the spherical SnO₂-nanoparticles in a tetragonal rutile morphology with mean particle size ~ 27 nm. The evaluation of optical attributes of SnO₂ has been carried out by utilizing the UV–visible spectrophotometry. The photocatalytic activity of SnO₂-nanoparticles showed efficiency about 35.9% in degradation of Eriochrome Black T (EBT).

Graphic abstract

中文翻译：

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通过绿色化学方法制备氧化锡（IV）纳米粒子及其在水净化中去除有机染料中的作用的研究

摘要

在这项研究中，考虑到绿色化学原理，采用溶胶-凝胶法在聚合物床上合成了氧化锡纳米颗粒（SnO _2-纳米颗粒）。氯化锡和明胶分别用作锡的前体和稳定剂。将获得的凝胶在不同温度（600、700和800°C）下煅烧。进行了不同的分析，例如TG-DTA，EDX，XRD，FT-IR，TEM和FESEM，以检查制备的纳米颗粒。XRD，TEM和FESEM的结果显示球形SnO _2-纳米颗粒呈四方金红石形态，平均粒径约为27 nm。利用紫外可见分光光度法对SnO ₂的光学属性进行了评估。SnO ₂的光催化活性-纳米颗粒显示出对铬黑T（EBT）降解的效率约35.9％。

图形摘要