Photodegradation of organic dyes in the presence of [Fe(III)-salen]Cl complex and H2O2 under visible light irradiation

Sonochemical Degradation of Rhodamine B Using Oxidants, Hydrogen Peroxide/Peroxydisulfate/Peroxymonosulfate, with Fe2+ Ion: Proposed Pathway and Kinetics

“…In addition, N-ethyl group cleavage (peaks at m/z 386 and 298), chromophore cleavage (peak at m/z 294), and open-ring cleavage (peak at m/z 166) also take place as reported by many researchers (Chen et al, 2003;Lei et al, 2005). Similar trend of degradation pathway (AlHamedi et al, 2009;Zhong et al, 2009;Gazi et al, 2010;Mehrdad et al, 2011) is followed in the case of PDS-and PMS-treated RB solution as FIG. 12.…”

Heterogeneous Fenton-like activity of novel metallosalophen magnetic nanocomposites: significant anchoring group effect

“…3). 29,30 However, the stability of the Fe(III)salophen complex in the acidic pH, 29 should be taken into account.…”

“…24,34 They are also consistent with those reported for photodegradation of organic dyes in the presence of Fe(III)-complex/H 2 O 2 under visible light irradiation (k ¼ 0.17 and 0.084 min À1 for RhB and CV, respectively). 29…”

Controlled hydrothermal synthesis of BiOxCly/BiOmIn composites exhibiting visible-light photocatalytic degradation of crystal violet

“…During visible light irradiation, the characteristic absorption band of the CV dye at approximately 588.3 nm decreased rapidly with slight hypochromic shifts (555.3 nm); however, no new absorption band appeared even in the ultraviolet range ( > 200 nm), indicating the possible formation of a series of N-demethylated intermediates and the possible cleavage of the whole conjugated chromophore structure of the CV dye. Further irradiation caused the absorption band at 555.3 nm to decrease; however, no further wavelength shift was observed, suggesting that the band at 555.3 nm was that of the full N-demethylated product of the CV dye [24][25][26].…”