Intense UV-light absorption of ZnO nanoparticles prepared using a pulse combustion-spray pyrolysis method

Microstructure, characterizations, functionality and compressive strength of cement-based materials using zinc oxide nanoparticles as an additive

“…Zinc oxide nanoparticle (ZnO), a versatile semiconductor material, is an inorganic compound which can be prepared by different methods such as sol-gel method, precipitation method, hydrothermal method and pulse combustion-spray pyrolysis methods [13][14][15][16][17][18]. ZnO has been known as a representative of the photocatalyst among semiconductors which has a direct band gap (3.3 eV at room temperature), due to their high photocatalytic activity, photocatalytic degradation of organic compounds and strongly resist microorganisms [19][20][21].…”

Nanotechnology: Development and challenges in Indonesia

“…On the other hand, in the SASP concept, the particle size product is independent of the droplet size [17]. In contrast in PCSP the integration of primary particles occurs due to acoustic oscillations of the droplet derived from combustion and droplet pressure balances: laplace pressure (interfacial surface tension) and osmotic pressure (interaction potential) [39]. Figure 3 shows the SEM micrograph of primary ZnO NPs prepared by spray pyrolysis technique using LiNO 3 as additive.…”

“…The early stage of pulse combustion SP (PCSP) system, ultrasonic nebulizer was used as an atomizer. Finally, for improving production rate, two-fluid nozzle was applied in PCSP systems [39]. The overview of the particle formation mechanism of spray pyrolysis process is presented as a comparison for CSP, SASP and PCSP as displayed in Fig.…”

“…The effect of droplet characteristics such as size distribution of droplets, concentration and their behavior in the reactor are the determining factors for the particles formation. In addition, the position and direction of the two-fluid nozzle in the system have impact on the droplets behavior [39].…”

Synthesis and electrochemical properties of Li₄Ti₅O₁₂/C nano-powders by pulse jet spray pyrolysis

“…The sound wave is generated by the LPG (liquid propane gas) or city gas burning in the pulse jet engine. 17) When the mist derived from the two-fluid nozzle is introduced in the pulse jet engine room, the mist is break to less than 100 nm through the irradiation of sound wave. We can therefore expect that the various types of nano-powders are available in one operation in a very short time.…”