Characterization and photo-chemical applications of nano-ZnO prepared by wet chemical and thermal decomposition methods

Facile Green Synthetic Route to the Zinc Oxide (ZnONPs) Nanoparticles: Effect on Green Peach Aphid and Antibacterial Activity

“…These application led many researchers to develop different routes to synthesis zinc oxide nanoparticles such as chemical route (Singh & Gopal, 2008;Abbasi et al, 2017), hydrothermal route (Ipeksac et al, 2013;Peng et al, 2016), sol-gel template process (Kumari et al, 2010;El Ghoul et al, 2012), photoluminescence emission technique (Rocha et al, 2014), microwave-assisted hydrothermal and decomposition (Tseng et al, 2012;Mousa et al, 2013), aerosol process (Ozcelik & Ergun, 2014), sonochemical synthesis (Zak et al, 2013), laser ablation (Thareja & Shukla, 2007), microemulsion method (Yıldırım & Durucan, 2010), precipitation method , hydrolyzed in polar organic solvents (Ehlert et al, 2014), solid-state thermal decomposition (Soofivand et al, 2013), microwave synthesis (Sutradhar et al, 2016). These routes have many disadvantages due to difficulty of scale up the synthesis process, separation and purification of nanoparticles from surfactants, co-surfactants, organic solvents, high energy consumption, and toxic by-products.…”

Thermodynamic Parameters for Solvation of Nano ZNO and Its Dopes In 50% DMSO - 50% DMF (V/V) Solutions at Different Temperatures

“…The Gibbs free energy of solvation of nano zinc oxide and nano zinc oxide doped were measured in presence of 50% DMSO+50%DMF because the solubility is very small in both pure [44][45][46][47][48] and their values are given in Tables 1, 2, 3 and 4. log γ±= -0.5062 x (Sm) 1/2 (1) Where,Sm is the molal solubility.…”

“…Nanoparticles have attracted much attention due to their individual features, which are unavailable in conventional macroscopic materials. Several studies have found biomedical applications for nano particles mainly as antibacterial material [1] cell imaging [2] drug delivery, and cancer therapy [2]. Also semiconductor Nanoparticles have much attention in recent years due to novel Therefore, ZnO was recognized for its utility in biological applications as an antibacterial material [2,7,8,18,19] Metal doped ZnO has pharmathotical importance as its show antibacterial activities against microorganisms such staphylococcus and bacillus [3].…”

“…Among various nano semiconductor, zinc oxide (ZnO) nano particles are the most frequently studied [3]. Normal ZnO has band gap of 3.37 ev and high binding energy [1,2] and high exciting binding energy 60 eV [3] Application uses of nano ZnO include solar energy [3], varistors [4], luminescence [5]., photo-catalysis [6],electrostatic coating [7], transparent protection films [8] and chemical sensors [9][10][11][12][13][14][15][16]. In particular, zinc oxide has other applications such as gas sensors, blue lasers, short-wavelength light-emitting devices.…”

One-pot synthesis of ZnO nanoparticles and submicron-aggregates for dye-sensitized solar cells

“…ZnO is a semiconductor belonging in II-VI compound semiconductors, with a direct wide band-gap (3.37 eV) and a large exciton binding energy (60 meV) at room temperature [4]. Although ZnO conversion efficiencies are low in comparison to TiO 2 , it is still thought of as the most promising alternative material for this type of solar cell due to its much higher electron mobility, easier crystallization, and more facile synthesis than those of TiO 2 [5][6][7].There are numerous methods and techniques for the synthesis of ZnO nanoparticles including: thermal decomposition, chemical vapor deposition, sol-gel, spray pyrolysis, hydrothermal, and precipitation [8][9][10]. However, most of these methods often associate with high temperature, high cost, complex procedures, sophisticated equipment, and strict experimental conditions.…”