fulltext.study @t Gmail

Ti-containing mesoporous silica for methylene blue photodegradation

Paper ID Volume ID Publish Year Pages File Format Full-Text
41777 45899 2011 8 PDF Available
Title
Ti-containing mesoporous silica for methylene blue photodegradation
Abstract

Photodegradation of methylene blue (MB) on Ti-containing mesoporous silica prepared by microwave-assisted irradiation as a function of Si/Ti molar ratio was studied. The materials were characterized by N2 adsorption, XRD, UV–vis/DR, and TEM. All solids showed mesoporous textures with high surface areas, relatively small pore size diameters and large pore volume. XRD showed that framework of solids consists of amorphous silica. It was found that the lower the Si/Ti ratio the higher the photocatalytic activity. Under irradiation with a lamp with more photons from visible light the sample with a Si/Ti ratio equal to 10 showed a higher photoactivity than that of a commercial TiO2 photocatalyst. This result was in agreement with the UV–vis/DR spectra which showed that material with a Si/Ti = 10 has slightly higher energy band gap than that of commercial TiO2 suggesting that these materials behave as a photoactive semiconductor.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (90 K)Download as PowerPoint slideResearch highlights▶ Ti-containing mesoporous silica prepared by microwave-assisted irradiation. ▶ Photodegradation of methylene blue on Ti-containing TUD-1 materials. ▶ Photo-active Ti-TUD-1 material in the visible range. ▶ Silica photo-assist the Ti in the photodegradation of methylene blue.

Keywords
TUD-1; Titanium; Photocatalysis; Methylene blue
First Page Preview
Ti-containing mesoporous silica for methylene blue photodegradation
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 393, Issues 1–2, 15 February 2011, Pages 359–366
Authors
, , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us