Methylene blue (MB) has become one of the most significant water contaminants. This pollutant is prevalent in both groundwater sources. It would irreversibly endanger human and marine life. Nanotechnology plays a vital function in the degradation of such pollutants. To meet today’s requisite, we have chosen to tackle environmentally friendly nanoparticle synthesis and applications by combining essential fields such as biotechnology, chemistry, and environmental science. In this paper, we have investigated the role of Ziziphus mauritiana seed extract (ZMS) to produce stannic oxide nanoparticles (SONPs) for dye degradation. The SONPs were illustrated by X-ray spectroscopy, scanning electron microscopy, transmission electron microscopy, and energy-dispersive X-ray spectroscopy. The results indicate that the SONPs photocatalyst yield was the highest in 1mM of the precursor, stannous chloride, and 100 mL of ZMS extract as the reducing agent via ultrasonication power of 400 W and a frequency of 20 kHz. The SONPs have a spherical morphology and are approximately 20 nm in size. To evaluate the relationships between the catalyst concentration, degradation efficiencies, and irradiation time response surface methodology (RSM) based on Box–Behnken design. The results displayed that the ZMS extract acted as capping and stabilizing agents for the fabrication of nanoparticles. The prediction and experimental results of the RSM indicate that, when the reaction time was 50 min, the photocatalyst dosage was 1 mg/L and the optimal degradation rate of the MBE was 100%. The photocatalytic performance of SONPs showed good degradation efficiency against the chemical dye MB.

亚甲蓝 (MB) 已成为最重要的水污染物之一。这种污染物在两种地下水源中都很普遍。它将不可逆转地危及人类和海洋生物。纳米技术在降解此类污染物方面发挥着至关重要的作用。为了满足当今的需求，我们选择通过结合生物技术、化学和环境科学等重要领域来解决环保纳米颗粒的合成和应用。在本文中，我们研究了Ziziphus mauritiana种子提取物 (ZMS) 以生产用于染料降解的氧化锡纳米颗粒 (SONP)。通过 X 射线光谱、扫描电子显微镜、透射电子显微镜和能量色散 X 射线光谱来说明 SONP。结果表明，在 1 mM 前体氯化亚锡和 100 mL ZMS 提取物作为还原剂，超声功率为 400 W 和频率为 20 kHz 时，SONPs 光催​​化剂产率最高。SONP 具有球形形态，大小约为 20 nm。基于 Box-Behnken 设计评估催化剂浓度、降解效率和辐照时间响应面方法 (RSM) 之间的关系。结果表明，ZMS 提取物作为制备纳米颗粒的封端剂和稳定剂。RSM 的预测和实验结果表明，当反应时间为 50 min 时，光催化剂用量为 1 mg/L，MBE 的最佳降解率为 100%。SONPs的光催化性能对化学染料MB显示出良好的降解效率。