Department of Physics, Centre for Nanosciences and Applied Thermodynamics, St. Joseph's College (Autonomous), Tiruchirappalli, 620002, Tamil Nadu, India.
Department of Physics, Bharata Mata College, Thrikkakara, Kochi, 682021, Kerala, India.
Environ Res. 2022 Sep;212(Pt B):113295. doi: 10.1016/j.envres.2022.113295. Epub 2022 Apr 19.
Metal nanoparticles furnished by the green synthesis approach have exhibited fascinating attributes owing to their biocompatibility with biomolecules, and their rapid environmentally friendly synthesis. On copper oxide (CuO) nanoparticles, a laser induced bio reduction work has been accomplish using Centella asiatica aqueous extract at room temperature is the pioneer in the field. This synthesis technique is easy, fruitful, eco-friendly, and counterfeit for the size-tunable synthesis of diverse shapes of stable copper nanoparticles. UV-visible spectroscopy, Field Emission Scanning Electron Microscopy (FESEM), Fourier Transform Infrared Spectroscopy (FTIR), Energy - Dispersive X-ray Spectroscopy (EDX), X-ray diffraction (XRD) and photodegradation study have astounding properties of regulating the formation, crystalline nature, and morphology of an integrated specimen. Moreover, the obtained copper oxide nanoparticle has the tendency to decrease the absorbance maximum value of methylene blue because of the catalytic activity posed by these nanoparticles on the reduction of methylene blue by Centella asiatica. It has been studied and confirmed by UV-visible spectrophotometer, and it has been recognised as an electron relay effect.
通过绿色合成方法制备的金属纳米粒子由于其与生物分子的生物相容性以及快速的环保合成而表现出引人注目的特性。在氧化铜 (CuO) 纳米粒子上，使用积雪草水提物在室温下进行了激光诱导生物还原工作，这在该领域是首创。这种合成技术简单、高效、环保，可用于尺寸可调的各种形状的稳定铜纳米粒子的合成。紫外-可见光谱、场发射扫描电子显微镜 (FESEM)、傅里叶变换红外光谱 (FTIR)、能谱 (EDX)、X 射线衍射 (XRD) 和光降解研究具有调节整体样品形成、结晶性质和形态的惊人特性。此外，由于这些纳米粒子对积雪草还原亚甲基蓝的催化活性，所获得的氧化铜纳米粒子具有降低亚甲基蓝最大吸收值的趋势。这已经通过紫外-可见分光光度计进行了研究和证实，并被认为是一种电子中继效应。
