Photodegradation of thiacloprid using Fe/TiO2 as a heterogeneous photo-Fenton catalyst

Preparation, characterization and photocatalytic activity evaluation of micro- and mesoporous TiO2/spherical activated carbon

“…This can be explained by the tensile strength effect (TSE) [52]. The effect means that the TiO 2 /SAC-900-6 and TiO 2 /SAC-900-9 contain ink bottle pores having narrow entrance and wide bodies [53][54][55][56]. The volume of nitrogen adsorbed in the relative pressure range of 0.5-1.0 increased with increasing activation time (6-9 h), demonstrating a remarkable increase in mesopores.…”

Potential application of novel TiO2/β-FeOOH composites for photocatalytic reduction of Cr(VI) with an analysis of statistical approach

“…At a low mole ratio of TiO 2 /Fe 3 level, outer layer of β-FeOOH might grow too thick, and the photoinduced holes had to migrate over longer distance to the TiO 2 kernel. Secondly and more importantly, the higher contents Fe 3 ions in the composite catalyst played the role of recombination sites to trap the photoinduced electrons and holes (Banić et al 2011), and thus decreased the photocatalytic efficiency of TiO 2 /β-FeOOH catalyst. However, at a high mole ratio of TiO 2 /Fe 3 level, the higher contents of TiO 2 in the composite catalysts might be not conducive to the formation of β-FeOOH crystalline structure, which leads to the low photocatalytic activity.…”

“…Consequently, the photocatalytic activity of 25TiO 2 /β-FeOOH composite will be greatly improved. Apart from the method of photocatalyst preparation, one of the key factors that governs the efficiency of composite photocatalyst is content of component in the heterostructure (Banić et al 2011;Liu et al 2012). The lower photocatalytic activity of the 10TiO 2 /β-FeOOH composite can be ascribed to two main reasons.…”

“…The application of coupled semiconductors in the photocatalytic process is regarded as an alternative to enhance the photocatalytic activity of TiO 2 by inhibiting the recombination of electron-hole pairs (Pal et al 1999;Fresno et al 2008;Banić et al 2011;Sun et al 2012;Yu et al 2013). Fe 2 O 3 is considered to be a suitable semiconductor to be coupled with TiO 2 due to its high photocatalytic activity and approximate band gap energy as compared with TiO 2 (Pal et al 1999;Banić et al 2011;Sun et al 2012;Yu et al 2013). Fe 2 O 3 can be prepared by the forced hydrolysis of Fe 3 solutions.…”

Comparative Assessment of the Photocatalytic Efficiency of TiO2 Wackherr in the Removal of Clopyralid from Various Types of Water

“…Because of their frequent use, chemical stability and resistance to biodegradation, they are encountered in waste waters, and, due to their hazardous effects on ecosystems and human health, their removal is imperative (Stapleton et al, 2006). With this in mind, we have recently paid significant attention to the study of the model compounds (Abramović et al, 2003;Abramović et al, 2004aAbramović et al, , 2004b and pyridine containing pesticides (Abramović et al, 2007;Šojić et al, 2009;Guzsvány et al, 2010;Šojić et al, 2010a, 2010bBanić et al, 2011).…”