ZnO is widely used as a photocatalytic process due to high photosensitivity, strongly oxidizing nature, non-toxic, favorable band gap energy and the excellent chemical and mechanical stabilities of the material. The present work deals with the synthesis of ZnO doped with transition metal (Sn) by using a simple chemical precipitation method. XRD analysis confirms the substitution of Sn⁴⁺ ions into the ZnO matrix by increased lattice spacing and a reduced 2θ angle. Optical properties like reflectance and band gap were studied using UV–Vis–DRS spectroscopy. The morphology of the samples was observed using FESEM and TEM which explains the growth rate and shape of the prepared samples. Methylene Blue (MB) dye was used to evaluate the photocatalytic activity of synthesized ZnO nanoparticles and their performance with respect time were analyzed and presented.

ZnO由于具有高光敏性，强氧化性，无毒，有利的带隙能以及材料的优异化学和机械稳定性而被广泛用作光催化工艺。本工作涉及通过使用简单的化学沉淀法合成掺杂过渡金属（Sn）的ZnO。XRD分析证实了Sn ⁴⁺的取代离子通过增加晶格间距和减小2θ角进入ZnO基体。诸如反射率和带隙之类的光学特性使用UV-Vis-DRS光谱学进行了研究。使用FESEM和TEM观察样品的形态，这解释了所制备样品的生长速率和形状。用亚甲基蓝（MB）染料评估了合成的ZnO纳米粒子的光催化活性，并分析了其随时间变化的性能。