Fe(III)-loaded collagen fiber as a heterogeneous catalyst for the photo-assisted decomposition of Malachite Green.
A heterogeneous catalyst for Fenton reaction was prepared by immobilizing Fe(III) onto collagen fiber and its catalytic activity for the photo-assisted decomposition of Malachite Green (MG) was investigated. The results indicated that this Fe(III)-immobilized collagen fiber (Fe-CF) can effectively catalyse the decoloration and decomposition/mineralization of MG in aqueous solution. Catalysed by Fe-CF, MG solution was completely decolorized in 30 min, while 55.0% of TOC was removed from the dye solution within 120 min in the presence of H(2)O(2) and UVA irradiation (365 nm, 10 W). Fe-CF was recycled for seven times with certain activity loss (32.6% in decoloration, 18.5% in TOC removal), and its catalytic activity can be easily recovered by re-immobilization of Fe(III). Therefore, Fe-CF could act as an efficient and cost-effective catalyst for the photo-assisted decomposition of MG, and shows potential applications in practice.
Liu
Xiaohu
X
Department of Biomass Chemistry and Engineering, Sichuan University, Chengdu 610065, PR China.
Tang
Rui
R
He
Qiang
Q
Liao
Xuepin
X
Shi
Bi
B
D002384:Catalysis; D003094:Collagen / Q000737:chemistry*; D005290:Ferric Compounds / Q000737:chemistry*; D006861:Hydrogen Peroxide / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D010777:Photochemistry; D012394:Rosaniline Dyes / Q000737:chemistry*; D014961:X-Ray Diffraction
D005290:Ferric Compounds; D012394:Rosaniline Dyes; C005095:malachite green; D003094:Collagen; D006861:Hydrogen Peroxide