Synthesis of three-dimensional flower-like hierarchical ZnO nanostructure and its enhanced acetone gas sensing properties

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.…”

ZnO Quasi-1D Nanostructures: Synthesis, Modeling, and Properties for Applications in Conductometric Chemical Sensors

“…Peng at al. report about the acetone sensing performances of flower-like nanostructures, showing a good response compared to literature data, and also to commercial ZnO sensors [60]. The better performances were attributed to the better crystallinity, and the higher density of surface oxygen vacancies defects confirmed by Raman and PL studies.…”

“…In recent years, ZnO nanowires or similar morphologies have been investigated and proposed especially as hydrogen [28], acetone [9, 59,60], ammonia, ethanol [11,13,14,61], hydrogen sulfide [62], nitrogen dioxide [10,13,63], and ozone [12] sensors. Nevertheless, only a few of these studies have been made considering the real working conditions of a sensor during the functional characterizations; we will report the ones we consider more interesting.…”

Investigation of sensitivity and selectivity of ZnO thin film to volatile organic compounds

“…Therefore, the development of a reliable and low-cost VOC sensor is highly necessary. Compared to conventional techniques, low-dimensional nanostructured ZnO due to the remarkable chemical, physical, and sensing properties [5][6][7] can be a good candidate to detect the VOCs [3,[8][9][10][11][12]. Many researchers have been reported the study of different volatile vapors sensing properties of nano-structured ZnO but it seems that there is a lack of detailed and more deeply study on VOCs sensing properties of nano-structured ZnO.…”

“…Luo et al [10] employed a hydrothermal method to produce mesoporous ZnO and Sndoped ZnO thin films and studied the sensitivity of the samples to different volatile vapors including ethanol, methanol, acetone, formaldehyde, and ammonia. Peng et al [8] also prepared 3D flower-like hierarchical ZnO nanostructure by the hydrothermal method and investigated the sensitivity of the sample to different gases and vapors such as acetone, hydrogen, acetic acid, ethanol, methanol, formaldehyde, and toluene. In contrast to the previous works and to obtain a deep understanding of the VOC sensing properties of nanostructured ZnO, we focused on sensitivity, selectivity and detection limit of the ZnO thin film with respect to a wide range of common VOCs including acetone, formaldehyde, acetic acid, formic acid, acetylene, toluene, benzene, ethanol, methanol, and isopropanol.…”