Synthesis and high photocatalytic activity of Eu-doped ZnO nanoparticles

Tunable white light emissive Mg2SiO4:Dy3+ nanophosphor: Its photoluminescence, Judd–Ofelt and photocatalytic studies

“…When, the Dy loading is 1 mol % the photocatalyst exhibits superior photocatalytic activity compared to all other photocatalysts with high rate constant (57x10 -3 min -1 ) which may be due to the high efficiency for the separation of electron-hole pairs. These results suggest that dopant ions can influence the charge separation, charge-carrier recombination and interfacial charge transfer rates, acting as mediators and affecting quantum efficiencies [82,83]. The application of the photocatalysts as well as maintenance of its photocatalytic activity is of critical concern for long term use of the photocatalysts in full-scale applications because the photocatalytic activity usually decreases as a result of photo-corrosion with repeated experiments [87].…”

Morphology controlled synthesis of Sm doped ZnO nanostructures for photodegradation studies of Acid Blue 113 under UV-A light

“…pairs [11]. Recently, enhanced photocatalytic degradation against various organic dyes under different light irradiations using different ions doped ZnO and TiO 2 nano/microstructures has been reported [12][13][14][15][16]. Zhang et al [17] have reported the visible light catalytic properties of carbon quantum dots/ZnO nanoflowers composites, and found that the enhanced photocatalytic properties with respect to the carbon quantum dots and also Khataee et al [18] have reported the sonocatalytic degradation of a textile dye over Gd-doped ZnO nanoparticles and their results revealed that the Gd-doped ZnO nanoparticles can be used as a promising catalyst for degradation of organic pollutants with great reusability potential.…”

EDTA-assisted fabrication of TiO2 core–shell microspheres with improved photocatalytic performance

“…Now, as an efficient, economical, and environmentally friendly technology to decrease organic pollutants in wastewater, photocatalysis is considered as a promising approach for pollution abatement and recovering of wastewater [2][3][4][5]. So far, a number of semiconductors such as TiO 2 [6,7], ZrO 2 [8], Fe 2 O 3 [9], ZnO [10], CdS [11], MgO [12], and Co 3 O 4 [13] have been widely used for the oxidation of organic pollutants in aqueous solution. Among them, TiO 2 has been intensively investigated as one of the most successful and promising photocatalytic materials for the degradation of hazardous pollutants due to its high chemical and biological stability, nontoxicity, easy availability, relatively low-cost, high photocatalytic activity, and long-term photostability [14].…”