DocumentCode
3336595
Title
Notice of Retraction
Photocatalytic Properties of Titanium Dioxide Loaded on ZSM-5 Zeolites Modified by NaOH and NH4Cl
Author
Wenjie Zhang ; Yang Yu ; Jiancheng Hu
Author_Institution
Sch. of Environ. & Chem. Eng., Shenyang Ligong Univ., Shenyang, China
fYear
2011
fDate
10-12 May 2011
Firstpage
1
Lastpage
3
Abstract
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
NaZSM-5 zeolites were modified by NaOH and NH4Cl, and then TiO2 catalysts were deposited on the zeolites by a sol-gel method. The photocatalytic activities of TiO2/OH-ZSM-5, TiO2/NH4-ZSM-5 and pure TiO2 were compared. The effects of NaOH and NH4Cl modification on photocatalytic activity of anatase TiO2 were investigated. Photocatalytic activities of the supported catalysts were examined through methyl orange degradation under UV irradiation. The results showed that the photocatalytic activity of NaZSM-5 zeolite modified by NaOH was reduced, while that of NaZSM-5 zeolite modified by NH4Cl was enhanced. The optimum TiO2 loading ratio of TiO2/NH4-ZSM-5 was 60 wt%. NH4-ZSM-5´s adsorption capacity of water was higher than the adsorption capacity of methyl orange.
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
NaZSM-5 zeolites were modified by NaOH and NH4Cl, and then TiO2 catalysts were deposited on the zeolites by a sol-gel method. The photocatalytic activities of TiO2/OH-ZSM-5, TiO2/NH4-ZSM-5 and pure TiO2 were compared. The effects of NaOH and NH4Cl modification on photocatalytic activity of anatase TiO2 were investigated. Photocatalytic activities of the supported catalysts were examined through methyl orange degradation under UV irradiation. The results showed that the photocatalytic activity of NaZSM-5 zeolite modified by NaOH was reduced, while that of NaZSM-5 zeolite modified by NH4Cl was enhanced. The optimum TiO2 loading ratio of TiO2/NH4-ZSM-5 was 60 wt%. NH4-ZSM-5´s adsorption capacity of water was higher than the adsorption capacity of methyl orange.
Keywords
catalysis; dyes; liquid phase deposition; nanocomposites; nitrogen compounds; photochemistry; pollution control; sodium compounds; sol-gel processing; titanium compounds; zeolites; NH4Cl modified zeolite; NH4Cl; NaAlSiO-H2O; NaOH; NaOH modified zeolite; TiO2-NH4-ZSM-5; TiO2-OH-ZSM-5; TiO2; UV irradiation; adsorption capacity; anatase catalysts; anatase loaded ZSM-5 zeolites; methyl orange degradation; optimum anatase loading ratio; photocatalytic properties; sol-gel deposition method; Degradation; Loading; Magnetic separation; Radiation effects; Surface treatment; Suspensions; Titanium compounds;
fLanguage
English
Publisher
ieee
Conference_Titel
Bioinformatics and Biomedical Engineering, (iCBBE) 2011 5th International Conference on
Conference_Location
Wuhan
ISSN
2151-7614
Print_ISBN
978-1-4244-5088-6
Type
conf
DOI
10.1109/icbbe.2011.5781041
Filename
5781041
Link To Document