Journal
JOURNAL OF POROUS MATERIALS
Volume 23, Issue 5, Pages 1311-1318Publisher
SPRINGER
DOI: 10.1007/s10934-016-0190-3
Keywords
SBA-15; Titanium isopropoxide; Grafting; Sonophotocatalysis; Eriochrome black-T
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Here in, a series of titanium-modified mesoporous silica (Ti-SBA-15) was prepared by grafting titanium isopropoxide. The as-synthesized Ti-SBA-15 nanocatalysts were characterized through N-2-adsorption-desorption, XRD, TGA/DSC, TEM and EDX techniques. Sonocatalytic and sonophoto-catalytic degradation of Eriochrome Black T (EBT) dye were investigated. 88.7 % removal was achieved in 70 min by using 5 % Ti-SBA-15 through sonophotocatalytic degradation under visible light irradiation. The kinetic study revealed that photo-degradation of EBT follows pseudo-first order reaction mechanism, where the rate constant was 27.4 x 10(-3) min(-1).
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