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. Author manuscript; available in PMC: 2014 Apr 1.
Published in final edited form as: J Am Chem Soc. 2011 Jul 1;133(29):11270–11278. doi: 10.1021/ja202836s

Figure 4.

Figure 4

EPR spectrum of pure and 10% Fe doped TiO2. The EPR spectrum of spin adduct from HO• radical generated by Fenton reaction was used to compare the spectral features of TiO2 activation. The EPR spectrum of the spin adducts was recorded 1 min after the addition of ferrous sulfate. The peak intensity from HO• radicals was drastically reduced in Fe doped TiO2 NPs compared to pure TiO2 under near visible light illumination.