DocumentCode
527056
Title
Notice of Retraction
Performance of La-CuO/TiO2 nanoparticles prepared for photoconversion of CO2
Author
Jing Wei ; Feifei Du ; Xin Tan ; Tao Yu
Author_Institution
Sch. of Environ. Sci. & Eng., Tianjin Univ., Tianjin, China
Volume
3
fYear
2010
fDate
17-18 July 2010
Firstpage
386
Lastpage
388
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.
Various loading amount of La-CuO/TiO2 were synthesized via a one step sol-gel process. The crystal structure and chemical properties were characterized using X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). XRD analysis revealed that two characteristic peaks at 35.54° and 38.76° according to cubic CuO were observed in the X-ray diffraction patterns of La-CuO/TiO2. Ti4+, Olat into TiO2 crystal lattice and Cu2+ were determined using XPS. The synthesized La-CuO/TiO2 was applied to the CO2 photoconversion and the yield of the major product, formaldehyde, was used to evaluate the photocatalytic performance. The 0.1wt.%La-CuO/TiO2 had the highest photocatalytic activity, and the yield of formaldehyde achieved 953.53 μmol/g·cat. after 6 h of UV illumination. Both the loading of lanthanum and composition of CuO were beneficial to improve the photoefficiency of the catalysts.
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.
Various loading amount of La-CuO/TiO2 were synthesized via a one step sol-gel process. The crystal structure and chemical properties were characterized using X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). XRD analysis revealed that two characteristic peaks at 35.54° and 38.76° according to cubic CuO were observed in the X-ray diffraction patterns of La-CuO/TiO2. Ti4+, Olat into TiO2 crystal lattice and Cu2+ were determined using XPS. The synthesized La-CuO/TiO2 was applied to the CO2 photoconversion and the yield of the major product, formaldehyde, was used to evaluate the photocatalytic performance. The 0.1wt.%La-CuO/TiO2 had the highest photocatalytic activity, and the yield of formaldehyde achieved 953.53 μmol/g·cat. after 6 h of UV illumination. Both the loading of lanthanum and composition of CuO were beneficial to improve the photoefficiency of the catalysts.
Keywords
X-ray diffraction; X-ray photoelectron spectra; carbon compounds; catalysis; copper compounds; crystal structure; lanthanum; nanofabrication; nanoparticles; photochemistry; semiconductor materials; sol-gel processing; titanium compounds; CO2; La-CuO-TiO2; UV illumination; X-ray diffraction; X-ray photoelectron spectroscopy; XPS; XRD; catalysis; chemical properties; crystal lattice; crystal structure; nanoparticles; photocatalytic activity; photoconversion; photoefficiency; sol-gel processing; Copper; Crystals; Data structures; Doping; Methanol; X-ray scattering; Carbon dioxide; Cupric oxide; Lanthanum; Photoconversion; Titania;
fLanguage
English
Publisher
ieee
Conference_Titel
Environmental Science and Information Application Technology (ESIAT), 2010 International Conference on
Conference_Location
Wuhan
Print_ISBN
978-1-4244-7387-8
Type
conf
DOI
10.1109/ESIAT.2010.5567447
Filename
5567447
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