Preparation of highly efficient Al-doped ZnO photocatalyst by combustion synthesis

In situ crystallization of ZnAl2O4/ZnO nanocomposite on alumina granule for photocatalytic purification of wastewater

“…To solve this problem two methods have been devoted to enhancing the photocatalytic activity by changing physical properties such as morphology and particle size, composition of semiconductors with a narrow band gap, noble metal doping, nonmetal doping, and transition metal doping [16,17]. Among these methods, not only does noble metal doping increase the photocatalytic performance in a more efficient way, but also the composition of two semiconductors is a special feat [18][19][20]. Research [21] has indicated that the composite building between ZnO and another nonsensitive semiconductor (usually having a very wide band gap), particularly ZnAl 2 O 4 , is a good option, having the higher photocatalytic yield of a single nanoparticle [15,18,22].…”

Comparison of the photocatalytic degradation of trypan blue by undoped and silver-doped zinc oxide nanoparticles

“…Of these, noble metal ion incorporation have been studying extensively and proved to be very effective in improving the photocatalytic activity and also to tune the optical and electrical properties of ZnO [8]. Various groups have synthesized ZnO:Ce nanoparticles [9], ZnO:Pd nanoparticles [10], ZnO:Al nanoparticles [11], and ZnO:Mn nanoparticles [12] by different method and observed the improved performance compared to pure ZnO nanoparticles. Literature surveys suggested that ZnO or ZnO:Ag is non-toxic in nature and are used in the various biological/medical applications [13].…”

Plasmon Mediated Photocatalysis by Solar Active Ag/ZnO Nanostructures: Degradation of Organic Pollutants in Aqueous Conditions

“…The enhancement in the photocatalytic performance and suppression of photocorrosion of ZnO via coupling with carbon materials and reduced graphene oxide showed good results in the photocatalysis [26]. Doping of ZnO [26] with metals [27], non metals [28], other compounds [29] and semiconductor materials [15] can also be considered to enhance visible range photocatalytic activity. Among them, doping with a noble metal (Ag and Au) is the most sought after idea due to LSPR (a unique property of conduction band electrons of noble metals to oscillate by incident light).…”