One-step, low-temperature fabrication of CdS quantum dots by watermelon rind: a green approach.
We investigated the one-step synthesis of CdS nanoparticles via green synthesis that used aqueous extract of watermelon rind as a capping and stabilizing agent. Preliminary phytochemical analysis depicted the presence of carbohydrates which can act as capping and stabilizing agents. Synthesized CdS nanoparticles were characterized using UV-visible, Fourier transform infrared spectroscopy, X-ray diffraction, EDX, dynamic light scattering, transmission electron microscopy, and atomic force microscopy techniques. The CdS nanoparticles were found to be size- and shape-controlled and were stable even after 3 months of synthesis. The results suggest that watermelon rind, an agro-waste, can be used for synthesis of CdS nanoparticles without any addition of stabilizing and capping agents.
Centre for Material Science, KCG College of Technology, Chennai, Tamil Nadu, India.
Rajasekhar
R
Lakshmipathy
Environmental and Analytical Chemistry Division, VIT University, Vellore, Tamil Nadu, India.
Nallani Chakravarthula
NC
Sarada
Material Physics Division, School of Advanced Sciences, VIT University, Vellore, Tamil Nadu, India.
K
K
Chidambaram
Material Physics Division, School of Advanced Sciences, VIT University, Vellore, Tamil Nadu, India.
Sk Khadeer
SK
Pasha
D019187:Cadmium Compounds / Q000737:chemistry*; D029773:Citrullus / Q000737:chemistry*; D003080:Cold Temperature; D046529:Microscopy, Electron, Transmission; D053758:Nanoparticles / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry*; D045663:Quantum Dots / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013440:Sulfides / Q000737:chemistry*; D013696:Temperature; D014961:X-Ray Diffraction
D019187:Cadmium Compounds; D010936:Plant Extracts; D013440:Sulfides; C034939:cadmium sulfide
atomic force microscopy; biomimetic; green synthesis; nanoparticles