Abstract A novel method of synthesis of tin dioxide quantum dots employing Camellia sinensis shoots as reducing agent and stabilizer is presented. The quantum dots were characterized by UV spectroscopy, X-Ray diffraction analysis, Fourier transform infrared spectroscopy, scanning electron microscopy, energy-dispersive X-ray spectroscopy and transmission electron microscopy. The crystalline tin dioxide quantum dots with an average size of 4.3 nm were of flake like morphology capped by phenolic compounds of Camellia sinensis. The quantum dots were employed for the photocatalytic degradation of thiamethoxam resulting in 57% degradation within 45 mins. Graphical Abstract

中文翻译：

---

山茶芽介导合成二氧化锡量子点降解噻虫嗪

摘要 提出了一种以茶树嫩芽为还原剂和稳定剂合成二氧化锡量子点的新方法。通过紫外光谱、X 射线衍射分析、傅里叶变换红外光谱、扫描电子显微镜、能量色散 X 射线光谱和透射电子显微镜对量子点进行了表征。平均尺寸为 4.3 nm 的结晶二氧化锡量子点呈片状形态，被山茶酚类化合物覆盖。量子点用于光催化降解噻虫嗪，在 45 分钟内降解 57%。图形概要