Plasma-enabled synthesis of Pd/GO rich in oxygen-containing groups and defects for highly efficient 4-nitrophenol reduction

Ag NPs decorated on the magnetic rod-like hydroxyapatite/MIL-101(Fe) nanocomposite as an efficient catalyst for the reduction of some nitroaromatic compounds and as an effective antimicrobial agent

“…Comparison between the obtained results to the reduction of 4-NP in the presence of HAP/MIL-101(Fe)/Ag/Fe 3 O 4 catalyst and NaBH 4 with other reported catalysts is indicated in Table 1. 39–52 From Table 1, it can be seen that the reaction in the presence of the HAP/MIL-101(Fe)/Ag/Fe 3 O 4 catalyst required a shorter reaction time compared with most of the reported catalysts, which confirms the potential of the current catalyst for the reduction of 4-nitrophenol in aqueous solutions.…”

Solution-Processed Ga2O3 Films via Thermal Annealing for Solar Blind Ultraviolet Photovoltaic Photodetectors with High Photoresponsivity and Fast Response

“…Here, the high-resolution XPS spectra of the O 1s orbital in different films were analyzed in detail (Figure d–f). The O 1s XPS spectra of all the films are divided by Gaussian fitting into the O ion region (O I ) with a 530.6 eV center peak, the oxide defect (O II ) region with a 531.2 eV center peak, and the oxygen ion regions (O III ) with a 532.1 eV center peak, associated with carbon and hydroxyl groups adsorbed on the film surface. , Through Gaussian fitting, the intensity ratios of O II /(O I + O II ) in the O 1s spectra of the original film, the 600 °C annealed film, and the 800 °C annealed film are 77.49, 43.31, and 29.72%, respectively, which means the 800 °C annealed film has the least oxygen vacancy. , Next, a fitting method like that used in O 1s spectrum is applied to O 1s spectrum in Ga 2 O 3 films (Figure g–i). From the diagram, the content of oxygen-containing groups (OCG) decreases with the increase of annealing temperature, indicating that organic matter decomposes more thoroughly at higher temperatures.…”

“…Ga and O elements are measured in X-ray photoelectron spectroscopy (XPS) spectra of all films, which confirmed the successful growth of Ga 2 O 3 films (see Figure S3 in the Supporting Information). Here, the high-resolution XPS spectra of the O 1s orbital in different films were analyzed in detail (Figure 5d 36,37 Next, a fitting method like that used in O 1s spectrum is applied to O 1s spectrum in Ga 2 O 3 films (Figure 5g−i). From the diagram, the content of oxygen-containing groups (OCG) decreases with the increase of annealing temperature, indicating that organic matter decomposes more thoroughly at higher temperatures.…”

Facile synthesis of C30-AuNPs for the effective catalytic reduction of nitrophenols and azo dyes

“…The catalytic reduction of 4-NP can be regarded as a quasi-primary reaction due to the excess of NaBH 4 . 48 According to eqn (1), the reaction rate is obtained at different temperatures.…”