Synthesis of ZnO nanoparticles using a hydrothermal method and a study its optical activity

Abstract

ZnO nanoparticles (NPs) with a granular morphology were synthesized using a hydrothermal method. Structural analysis revealed that ZnO NPs had a single crystal wurtzite hexagonal structure. Solvent polarity was responsible for varying and controlling their size and morphology. The process was very trouble free and scalable. In addition, it could be used for fundamental studies on tunable morphology formation. This hydrothermal method showed different morphology with different co-surfactants such as a floral-like or wire-like belt sheet structures etc. Based on their surface morphology, the same material had different applications as a catalyst in various organic reactions and also could be used as a photocatalyst and fuel cell, solar cell or in semiconductors etc. X-ray diffraction (XRD), scanning electron microscopy (SEM), ultraviolet-visible spectroscopy and photoluminescence of the resulting product was performed to study its purity, morphology and size, plus its optical properties via measurement of band gap energy and light absorbance.

Green synthesis of zinc oxide nanoparticles using aqueous extract of Garcinia mangostana fruit pericarp and their photocatalytic activity

“…As the reduction in size increases the surface area, thus, enhancing the photocatalytic activity of ZnO. A number of physical and chemical approaches are available to synthesize ZnO nanoparticles (ZnO NPs), for example, hydrothermal method [10], solvothermal method [11,12], microemulsion method [13], microwave method [14], thermal decomposition [15], precipitation [16], sol-gel [17], laser ablation [18] and sonochemical method [19]. Although these physical/chemical methods are effective to synthesize of ZnO NPs with different sizes and morphologies, but these methods are complex, and utilize hazardous organic solvents, toxic reagents, nonbiodegradable stabilizing agents and expensive instruments along with the tedious process control.…”

Ketoconazole‐conjugated ZnO nanoparticles based semi‐solid formulation and study their impacts on skin disease

“…The ZnO nanoparticles highly suitable for dermal applications due to easily imaged through a microscope in the skin and it mostly stayed in stratum corneum without any toxic effect [8]. The synthesis of ZnO nanoparticles has been carried out by several methods such as hydrothermal [9], micro‐emulsion [10], ultrasonic [11], sol–gel method [12], wet chemical synthesis [13], spray pyrolysis [14] and solid‐state reaction [15]. The nanoparticles based drug delivery systems minimising the toxicity associated with systemic absorption or gastrointestinal problems.…”

A Fluorescent Hexanuclear Zn(II) Complex

“…The thermolysis of such zinc(II) containing coordination clusters is direct route to obtain ZnO nanoparticles ,. However, other interesting methods for the synthesis of ZnO nanoparticles including sonochemical,, hydrothermal, chemical vapor synthesis,, sol‐gel synthesis and plylol synthesis, have also been reported in literature . Zn(II) containing complexes display promising luminescent properties and have been used to make sensors for biologically and environmentally important metal ions .…”