Morphological evaluation and boosted photocatalytic activity of N-doped ZnO nanoparticles prepared via Co-precipitation method

Robust and Reliable Organic Dye-Embedded Zinc Oxide Nanocomposite Phosphor with a Broad Spectrum and High Efficiency Enables an Eco-Friendly White Laser Light Diode

“…The highest peak position of Zn 2p 3/2 in R-ZnO NPs shifts to higher energy, indicating the formation of the Zn–N bonds in the R-ZnO NPs. This is due to the fact that in the Zn–N bonding, the electrons of elemental Zn are more biased toward the elemental N element, which reduces the electron cloud density around the Zn element . In addition, there is a similar tendency for Zn 2p 1/2 in R-ZnO NPs to move to the higher energy region.…”

“…This is due to the fact that in the Zn−N bonding, the electrons of elemental Zn are more biased toward the elemental N element, which reduces the electron cloud density around the Zn element. 22 In addition, there is a similar tendency for Zn 2p 1/2 in R-ZnO NPs to move to the higher energy region. The peak position of the Zn binding energy is shifted toward the high-energy direction, suggesting that ZnO is complexed with RhB.…”

Vacancy induced enhanced photocatalytic activity of nitrogen doped CuO NPs synthesized by Co-precipitation method

“…When wastewater containing dyes are exposed to light in presence of the photocatalyst, dye degradation occurs via an oxidation reaction mechanism [ 6 ]. The ability of the photocatalyst to produce electron-hole (e-h + ) pairs upon light absorption is a key factor in its photocatalytic activity (PCA) [ 7 ]. As a strong oxidant, the positive hole can produce hydroxyl free radicals (•OH) while exposed to water or hydroxide ions from the toxic compounds [ 8 ].…”

“…In case of rare earth elements, dopants are quite expensive and meager [ 1 ]. Therefore, an effective approach can be selection of non-metallic elements as dopant [ 7 , 37 ] which are also preferred due to their similarity with oxygen in characteristics. Among these elements, nitrogen (N) can be a better choice due to its low ionization energy and smaller atomic size resulting in formation of a metastable center [ 40 ].…”

“…In this study, nitrogen doped CuO NPs have been synthesized via co-precipitation method which is considered as a facile technique due to its high efficiency, versatility, low cost, and ability to control particle size and morphology precisely [ 7 ]. Compared to other synthesis methods, this approach also offers a number of unique advantages, i.e., an eco-friendly way to produce high-purity nanoparticles with complete control on process parameters, such as pH, temperature and mixing rate [ 44 , 45 ].…”