Regeneration of nano-ZnO photocatalyst by the means of soft-mechanochemical ion exchange method

TIO2/Nanoclay nanocomposite for phenol degradation in sonophotocatalytic reactor

“…When phenol-containing water is chlorinated, toxic polychlorinated phenols can be formed; hence, such effluent requires proper treatment before being discharged into the environment (Chiou and Juang, 2007). Currently, number of research efforts are being devoted to improve the existing properties of TiO 2 by using different doping materials (Chiou and Juang, 2007;Li et al, 2009;Prasad et al, 2010a,b), support materials such as clay (Chihiro et al, 2004;Kun et al, 2006;Xuejun et al, 2008;Stengl et al, 2009), Zeolite (Noorjahan et al, 2004) and enhancing photocatalytic efficiency in wide range of solar spectrum using visible light catalyst loading (Liu et al, 2008;Stengl et al, 2009), etc. Currently, number of research efforts are being devoted to improve the existing properties of TiO 2 by using different doping materials (Chiou and Juang, 2007;Li et al, 2009;Prasad et al, 2010a,b), support materials such as clay (Chihiro et al, 2004;Kun et al, 2006;Xuejun et al, 2008;Stengl et al, 2009), Zeolite (Noorjahan et al, 2004) and enhancing photocatalytic efficiency in wide range of solar spectrum using visible light catalyst loading (Liu et al, 2008;Stengl et al, 2009), etc.…”

“…When phenol-containing water is chlorinated, toxic polychlorinated phenols can be formed; hence, such effluent requires proper treatment before being discharged into the environment (Chiou and Juang, 2007). Titanium oxidebased photocatalysts nanomaterials are promising to investigate since they are stable, non-toxic and highly efficient materials (Davydov et al, 2001;Li et al, 2009;Zhou and Zhao, 2010). Currently, number of research efforts are being devoted to improve the existing properties of TiO 2 by using different doping materials (Chiou and Juang, 2007;Li et al, 2009;Prasad et al, 2010a,b), support materials such as clay (Chihiro et al, 2004;Kun et al, 2006;Xuejun et al, 2008;Stengl et al, 2009), Zeolite (Noorjahan et al, 2004) and enhancing photocatalytic efficiency in wide range of solar spectrum using visible light catalyst loading (Liu et al, 2008;Stengl et al, 2009), etc.…”

Applications of Metal/Mixed Metal Oxides as Photocatalyst: A Review

“…The presence of WO 3 also restrained the recombination rate of e"/h+ pairs. Li et al 25 analysed nano-crystalline ZnO particles synthesized via an ion exchange method and used in a methyl-orange photocatalytic degradation process. An ion exchange resin mixed bed system was used in the suspension for separation of nanoZnO and methyl-orange after photocatalysis reaction.…”

Enhanced Photocatalytic Performance of NiO-Decorated ZnO Nanowhiskers for Methylene Blue Degradation

“…ZnO-based photocatalysts have attracted much attention because of their chemical stabiliz-ations, its nontoxicity, being cost-effective, and being environment-friendly [3]. Several researchers reported that zinc oxide has good photocatalytic activity and shows the appropriate activity in the range of solar radiation [4][5][6].…”