The Relationship between Structure and Photo-Fenton CatalyticAbility of Iron-containing Aluminosilicate Glass prepared by Sol-gel method

摘要

The aim of this work is the development of an effective treatment of wastewater polluted with organic compounds by green chemical techniques. Glasses and ceramics with photocatalytic properties could be applied for the decomposition of organic materials in contaminated wastewater. Hematite (α-Fe2O3) is a suitable material, due to its photocatalytic properties and low band gap energy [1]. In our previous study, precipitated α-Fe2O3 could be detected from the ~(57)Fe-Mossbauer spectra of iron-containing silicate glass prepared by the sol-gel method [2] and melt-quenching method [3]. It showed a high rate constant of 2.87×10- 2 h- 1 [3] for methylene blue (MB) decomposition under visible light.