Photoluminescence study of interstitial oxygen defects in ZnO nanostructures

Regionalização De Curva De Permanência De Vazão Para a Sub- Bacia Do Rio Madeira

“…The effect the photocatalytic of ZnO has been reported studied in literatures by (KIMIAGAR et al, 2018), (THABIT et al ,2018) and (FANG et al , 2018) so the effect the photocatalytic for ZnO above 70% this case the ZnO for this study as shown in Figure 7 obtained a degradation of 74% and when including CQDs as shown had a degradation of 70% with a significant response to the doping of the CQDs in the zinc oxide structure.…”

“…Figure 5 showed the optical properties of the pure ZnO, and ZnO / CQDs were obtained by sonochemical with the PL measurement, respectively. The effect of adsorption on the PL emission properties of ZnO has been well studied in literatures by (TAUC et al, 1972), (JUNG et al , 2011) and (FANG et al , 2018).…”

Minimum Inhibition Concentration of surface-modified ZnO nanostructures on Streptococcus mutans

“…Better crystallinity might explain differences in intensity [12] that arose from the smaller plate-shaped ZnO-A, and multi-shaped ZnO-K nanostructures (Figure 1). On the contrary, the NBE peak was slightly shifted to a higher wavelength (from x to y nm) in the ZnO-K nanoparticle, thus emitting the lowest intensity, probably due to its multi-shaped morphology with a range of particle sizes as a result of radiative recombination that involved an intrinsic defect center located at the surface [13]. Also, the PL spectra (Figure 4) confirmed the existence of GL and oxygen vacancies in ZnO particles.…”

Uso Da Água Dos Aparelhos De Ar Condicionado No Campus Paralela Do Centro Universitário Jorge Amado – Unijorge

“…showed the optical properties of the pure ZnO, and ZnO / CQDs were obtained by sonochemical with the PL measurement, respectively. The effect of adsorption on the PL emission properties of ZnO has been well studied in literatures by(TAUC et al, 1972),(JUNG et al , 2011) and(FANG et al , 2018).The photoluminescence spectra of the ZnO pure and ZnO / CQDs system of nanoparticles collected at room temperature (RT).Figure 5shows the PL of the CQDs is the emission starts at 477 nm and ends at 648 nm. The difference in PL intensity between ZnO pure and ZnO / CQDs is attributed to the presence of surface groups (O-H, N-H, and C = O) of carbon quantum dots as reported by (JUNG et al , 2011) and (BRISCOE et al, 2015) are influenced for values band gap.…”