In this research article, the photocatalytic decolourization of rhodamin B by the newly green synthesized TiO₂ nanostructure material has been investigated to consider as effective catalyst for the decontamination of wastewater. The crystal structure and particle size measurement of green synthesized TiO₂ was appraised by X-ray diffraction (XRD). The morphological, structure and particle size distribution was study by SEM and TEM. The optical properties of these materials were investigated by using UV–visible and photoluminescence spectra. The photocatalytic behaviour of synthesized TiO₂ nanostructure was study the photo-degradation sample over the rhodamin B dye illustrate water pollutant under UV light irradiation. Photoluminescence spectra confirmed the enhancement of photogenerated $e^{-}-h^{+}$ pair recombination of electron in valance and conduction band. The simultaneous photocatalytic efficiency and kinetic study was considered in the presence of UV light and measured as 58% and it follow first order kinetics with rate constant 0.0196 min⁻¹.

本文研究了新型绿色合成TiO ₂纳米结构材料对若丹明B的光催化脱色作用，以作为有效的废水去污催化剂。通过X射线衍射（XRD）评价了绿色合成TiO ₂的晶体结构和粒度测量。用SEM和TEM研究了形貌，结构和粒径分布。通过使用紫外可见光谱和光致发光光谱研究了这些材料的光学性质。合成TiO ₂的光催化行为研究了纳米结构的若丹明B染料的光降解样品说明了紫外线照射下的水污染物。光致发光光谱证实了光生的增强${Ë}^{--}--H^{+}$价电子和导带中的电子对复合。在存在紫外光的情况下考虑了同时的光催化效率和动力学研究，其测量为58％，并且遵循一级动力学，速率常数为0.0196 min ^-1。