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Cr doped TiO2 supported on TUD-1 photocatalyst for congo red photodegradation

A series of new visible light driven photocatalysts of 1 mol% Cr doped Ti02 supported on various amount of TUD-1 have been successfully synthesized via sol gel method. XRD analysis revealed that all the Cr-Ti02/x TUD-l (x = 10,20,30,40 and 50 mol%) photocatalysts were in amorphous form. Both Ti02 an...

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Main Authors: Yee, Khai Ooi, Yuliati, Leny, Siew, Ling Lee
Format: Conference or Workshop Item
Language:English
Published: 2014
Subjects:
QC Physics
Online Access:http://eprints.utm.my/id/eprint/61480/1/LeeSiewLing2014_CRDopedTio2SupportedOnTud1Photocatalyst.pdf
http://eprints.utm.my/id/eprint/61480/
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spelling my.utm.614802017-09-12T03:09:51Z http://eprints.utm.my/id/eprint/61480/ Cr doped TiO2 supported on TUD-1 photocatalyst for congo red photodegradation Yee, Khai Ooi Yuliati, Leny Siew, Ling Lee QC Physics A series of new visible light driven photocatalysts of 1 mol% Cr doped Ti02 supported on various amount of TUD-1 have been successfully synthesized via sol gel method. XRD analysis revealed that all the Cr-Ti02/x TUD-l (x = 10,20,30,40 and 50 mol%) photocatalysts were in amorphous form. Both Ti02 and Cr were incorporated in the highly porous siliceous matrix. FTIR analysis indicated the existence of Si-O-Ti bonding in all the materials. UV-Vis D R analysis suggested that alteration of Ti species occurred from tetrahedrally to octahedrally coordinated Ti species when higher TUD-1 amount was used as photocatalyst support. However, the amount of TUD-1 did not affect the wavelength response and the band gap energy of the resulted materials. All the materials were having band gap energy of ~2.9 eV. The photocatalytic performance of the synthesized materials was evaluated through the photodegradation of Congo Red under visible light irradiation at 298 K for 5 h. Results showed that all the Cr-TiO2/TU D -1 materials had higher photocatalytic activity compared to Cr-TiO2, Amongst, Cr-TiO2/30TU D-1 appeared as the most superior photocatalyst that gave the highest percentage of dye degradation. 2014 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/61480/1/LeeSiewLing2014_CRDopedTio2SupportedOnTud1Photocatalyst.pdf Yee, Khai Ooi and Yuliati, Leny and Siew, Ling Lee (2014) Cr doped TiO2 supported on TUD-1 photocatalyst for congo red photodegradation. In: The International Science Postgraduate Conference (ISPC2014), 10-12 Mac, 2014, Johor Bahru, Malaysia.
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic QC Physics
spellingShingle QC Physics
Yee, Khai Ooi
Yuliati, Leny
Siew, Ling Lee
Cr doped TiO2 supported on TUD-1 photocatalyst for congo red photodegradation
description A series of new visible light driven photocatalysts of 1 mol% Cr doped Ti02 supported on various amount of TUD-1 have been successfully synthesized via sol gel method. XRD analysis revealed that all the Cr-Ti02/x TUD-l (x = 10,20,30,40 and 50 mol%) photocatalysts were in amorphous form. Both Ti02 and Cr were incorporated in the highly porous siliceous matrix. FTIR analysis indicated the existence of Si-O-Ti bonding in all the materials. UV-Vis D R analysis suggested that alteration of Ti species occurred from tetrahedrally to octahedrally coordinated Ti species when higher TUD-1 amount was used as photocatalyst support. However, the amount of TUD-1 did not affect the wavelength response and the band gap energy of the resulted materials. All the materials were having band gap energy of ~2.9 eV. The photocatalytic performance of the synthesized materials was evaluated through the photodegradation of Congo Red under visible light irradiation at 298 K for 5 h. Results showed that all the Cr-TiO2/TU D -1 materials had higher photocatalytic activity compared to Cr-TiO2, Amongst, Cr-TiO2/30TU D-1 appeared as the most superior photocatalyst that gave the highest percentage of dye degradation.
format Conference or Workshop Item
author Yee, Khai Ooi
Yuliati, Leny
Siew, Ling Lee
author_facet Yee, Khai Ooi
Yuliati, Leny
Siew, Ling Lee
author_sort Yee, Khai Ooi
title Cr doped TiO2 supported on TUD-1 photocatalyst for congo red photodegradation
title_short Cr doped TiO2 supported on TUD-1 photocatalyst for congo red photodegradation
title_full Cr doped TiO2 supported on TUD-1 photocatalyst for congo red photodegradation
title_fullStr Cr doped TiO2 supported on TUD-1 photocatalyst for congo red photodegradation
title_full_unstemmed Cr doped TiO2 supported on TUD-1 photocatalyst for congo red photodegradation
title_sort cr doped tio2 supported on tud-1 photocatalyst for congo red photodegradation
publishDate 2014
url http://eprints.utm.my/id/eprint/61480/1/LeeSiewLing2014_CRDopedTio2SupportedOnTud1Photocatalyst.pdf
http://eprints.utm.my/id/eprint/61480/
_version_ 1643655178867441664
score 13.211869

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