Autonomous self-optimizing defects by refining energy levels through hydrogenation in CeO_2–x polymorphism: a walking mobility of oxygen vacancy with enhanced adsorption capabilities and photocatalytic stability

Abstract

We approach a self-consistent technique to enhance the solar absorption by proper balance of trapping sites through hydrogenation. Understanding the impact of hydrogenation on oxygen vacancy sites in CeO2is crucial...

How Interplay between UV and Visible Activation Dictates Charge Transfer in Nanoengineered Gold Nanoparticle Interfaces at Rutile TiO2 Polymorphism: Photocatalysis with Contrasting Results

“…Under UV light, Au/TiO 2 renders the lowest catalysis with an order of magnitude difference compared to bare TiO 2 . It is well established that the mixed phase of TiO 2 outperforms compared to the individual polymorphs of TiO 2 . , However, the exact charge transfer mechanism under different excitation wavelength has still remained controversial. , The intrinsic band alignment imposed at the particular junction will always be the dominating factor indicating the photocatalysis process in any reaction. Such a charge transfer mechanism under different excitation wavelengths is explained under two subheadings:…”

“…The Au 4f 7/2 peak at 84.0 eV is assigned to metallic gold. 51 The binding energy of Au in TiO 2 showed slight offset to a higher value of 84.3, attributing to the rearrangement of the electrons 3,10 However, the exact charge transfer mechanism under different excitation wavelength has still remained controversial. 54,55 The intrinsic band alignment imposed at the particular junction will always be the dominating factor indicating the photocatalysis process in any reaction.…”

Optical absorption investigations for efficient crystal violet dye removal from wastewater via carbon nanotubes:Montmorillonite‐based nanocomposite

“…Among these techniques, adsorption has proven itself to be the most successful and versatile in the treatment of wastewater, with its processing not demanding the use of any complicated or costly equipment and accessories. [10][11][12] A variety of adsorbents such as activated carbon, [13] metal oxides, [14][15][16][17][18] polymeric resins, [19,20] zeolites, [21,22] clay minerals [23] and silica gel [24] have been exploited to remove various organic and inorganic contaminants from wastewater.…”

“…Among these techniques, adsorption has proven itself to be the most successful and versatile in the treatment of wastewater, with its processing not demanding the use of any complicated or costly equipment and accessories. [ 10–12 ] A variety of adsorbents such as activated carbon, [ 13 ] metal oxides, [ 14–18 ] polymeric resins, [ 19,20 ] zeolites, [ 21,22 ] clay minerals [ 23 ] and silica gel [ 24 ] have been exploited to remove various organic and inorganic contaminants from wastewater. Recently, Singh et al studied the synthesis of bioinspired iron oxide (B‐FeO) nanoparticles [ 16 ] and bioinspired triangular zinc oxide (bT‐ZnO) nanoclusters [ 17 ] by green chemistry route and reported the utilization of photocatalytic B‐FeO NPs for MB dye degradation and exploited the antimicrobial activity of bT‐ZnO nanoclusters.…”

Synthesis and photometric properties of efficient white‐emitting phosphor of M‐AMG transition metal complexes for OLED applications

“…In the latest lighting technology, white light-emitting diodes (WLEDs) are frequently used due to their life span, efficiency, different range of color availability, and good stability. [2][3][4][5] Phosphor-WLEDs with tricolor or near-ultraviolet (n-UV)/blue chips are widely utilized as solidstate lighting sources due to their outstanding performance. [6,7] WLED produced by using n-UV region was found to be good for living beings and will not create environmental problems.…”