Adsorption of organic dyes on the aminosilane modified TiO2 surface

UV-stable paper coated with APTES-modified P25 TiO2 nanoparticles

“…(Balasundaram, Sato, & Webster, 2006;Filippini, 20 Rainaldi, Ferrante, Mecheri, Gabrielli, Bombace, Indovina, & Santini, 2001)) Adsorption of organic dyes on TiO2 surfaces has also been reported using APTES as a coupling agent. (Andrzejewska, Krysztafkiewicz, & Jesionowski, 2004) Although in many cases APTES has been applied for specific purposes, disagreements often occur on the dominant conformation or chemical form of APTES at interfaces because they not only depend on the reaction 25 conditions but also on the crystal structures of TiO2 substrate. (Song, Hildebrand, & Schmuki, 2010;Chen, & Yakovlev, 2010;Ukaji, Furusawa, Sato, & Suzuki, 2007)APTES has not so far, to the authors' best knowledge, been used to deposit and bind TiO2 nanoparticles to the surface of cellulose or its derivatives.…”

Removal of malachite green from dye wastewater using neem sawdust by adsorption

“…Further, work in the related area using conventional adsorbents such as modified silica for the removal of organic dyes has been reported [10][11][12]. Natural materials that are available in large quantities from agricultural operations may have potential to be used as low cost adsorbents, widely available and are environmental friendly [13].…”

Photocatalytic degradation of azo dyes catalyzed by Ag doped TiO2 photocatalyst

“…Photocatalytic degradation by semiconductors is a new, effective and rapid technique for the removal of pollutants from water [3,4]. The TiO 2 photocatalyst has attracted much interest in recent years for its highly active photocatalytic functions, like the ability to decompose of chemical compounds, as well as super hydrophilic and antibacteria properties [5][6][7][8]. This photocatalyst and most of other semiconductors have poor activity when used alone, but the presence of a metal on the semiconductor markedly increases their efficiency [9][10][11].…”