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Surface Acidity and Photocatalytic Activity of TiO2, WO3/TiO2, and MoO3/TiO2 Photocatalysts
Chemistry of Materials, 1994TiO[sub 2] powder samples were calcined at various temperatures and their photocatalytic activity toward the degradation of 1,4-dichlorobenzene was measured. The surface acidity of the sample was also determined by the n-butylamine titration method. A linear relationship between photocatalytic activity and surface acidity was observed for the TiO[sub 2]
J. Papp, S. Soled, K. Dwight, A. Wold
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Study of TiO2 nanocrystallites in TiO2SiO2 composites
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 1998Abstract A titania-silica nanocomposite system with six different compositions (10/90, 20/80, 40/60, 50/50, 60/40, 80/20 molar ratio of TiO2/SiO2) was prepared by a sol-gel method. Different experimental techniques such as XRD, TEM, EDAX, DTA and density measurements by Archimedes' method were used to characterize each composition.
R.N. Viswanath, S. Ramasamy
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การกำจัดเบนซีนออกจากแก๊สปล่อยทิ้งด้วยตัวเร่งปฏิกิริยา V2O5-Co3O4/TiO2, V2O5/TiO2, และ Co3O4/TiO2
ในงานวิจัยนี้มีการกำจัดเบนซีนด้วยตัวเร่งปฏิกิริยา V2O5-Co3O4/TiO2, V2O5/TiO2, และ Co3O4/TiO2 ที่บรรจุอยู่ในเครื่องปฏิกรณ์แบบเบดนิ่ง ตัวเร่งปฏิกิริยาถูกเตรียมด้วยวิธีเคลือบฝังแบบเปียก (wet impregnation) และวิเคราะห์ลักษณะของตัวเร่งปฏิกิริยาด้วยเทคนิค ICP, single point BET, NH3-TPD, และการดูดซับไพรีดีน การศึกษาความสามารถในการเกิดปฏิกิริยา แบ ...openaire +1 more source
1918
Titandioxyd ist trimorph und kommt tetragonal in zwei Kristallarten, Rutil und Anatas, und dann in einer rhombischen Kristallart, dem Brookit vor.
C. Doelter, G. d’Achiardi, M. Henglein
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Titandioxyd ist trimorph und kommt tetragonal in zwei Kristallarten, Rutil und Anatas, und dann in einer rhombischen Kristallart, dem Brookit vor.
C. Doelter, G. d’Achiardi, M. Henglein
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2014
This work is completed with a summary and a brief outlook for the further improvement of the photocatalytic performance when this chromium element is incorporated into TiO2 oxide growing on quartz and porous multicrystalline silicon substrates. These photosensitivity tests emerged as a new way to show the important role of the structural modification ...
Anouar Hajjaji +4 more
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This work is completed with a summary and a brief outlook for the further improvement of the photocatalytic performance when this chromium element is incorporated into TiO2 oxide growing on quartz and porous multicrystalline silicon substrates. These photosensitivity tests emerged as a new way to show the important role of the structural modification ...
Anouar Hajjaji +4 more
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2011
??????????i????????????i ???????????????? ???? ??????????i TiO2, ???? ??????????i??????????i ???????????????????????????? ????????????, ?????????????????????? ???????????????? ????????- ?? ????????????i?????????????????? i????i?? ????????????, ????????????i?????????? ?? ???????????i ?????? ???????????????????????? ????
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??????????i????????????i ???????????????? ???? ??????????i TiO2, ???? ??????????i??????????i ???????????????????????????? ????????????, ?????????????????????? ???????????????? ????????- ?? ????????????i?????????????????? i????i?? ????????????, ????????????i?????????? ?? ???????????i ?????? ???????????????????????? ????
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2011
?????????????????? ?????????????????????? ?????????????? ?????????????? ???????????? ???????????? ??????2 ?????????????? ?????????????????? ?????????????????????? ??????????????????. ???????????????????????????????? ?????????????????????? ????????????????, ???? ????????????, ?????????????????????? ?????? ???????????????????????? 500???? ?? ????????, ??
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?????????????????? ?????????????????????? ?????????????? ?????????????? ???????????? ???????????? ??????2 ?????????????? ?????????????????? ?????????????????????? ??????????????????. ???????????????????????????????? ?????????????????????? ????????????????, ???? ????????????, ?????????????????????? ?????? ???????????????????????? 500???? ?? ????????, ??
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2008
The investigation of X-ray OK??- and TiL??-emission bands in coarse-(???d > 5 ??m) and nanopowders (???d = 107 and 10 nm) reveals the narrowing and a change of their shape, that is due to the energy redistribution of valence electrons in the Op-states after the break of atomic bonds during the dispersion of the material to nanosizes.
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The investigation of X-ray OK??- and TiL??-emission bands in coarse-(???d > 5 ??m) and nanopowders (???d = 107 and 10 nm) reveals the narrowing and a change of their shape, that is due to the energy redistribution of valence electrons in the Op-states after the break of atomic bonds during the dispersion of the material to nanosizes.
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2015
One of the most significant investigations on heterogeneous photocatalytic process can be dated back to the 1970s, when Fujishima and Honda showed that the TiO2 electrode is capable of water splitting under suitable electromagnetic irradiation. Since then, TiO2-based materials have become the dominant photocatalyst and have been investigated for ...
Su, Ren +2 more
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One of the most significant investigations on heterogeneous photocatalytic process can be dated back to the 1970s, when Fujishima and Honda showed that the TiO2 electrode is capable of water splitting under suitable electromagnetic irradiation. Since then, TiO2-based materials have become the dominant photocatalyst and have been investigated for ...
Su, Ren +2 more
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