XPS analysis of uncoated and silica-coated titanium dioxide powders
The surface chemical composition of various SiO 2-coated titanium dioxide powders was probed by X-ray photoelectron spectroscopy (XPS). The titanium photopeak was detected in addition to the silicon photopeak indicating that the thickness of the SiO 2 coating was < 5 nm. The detection of two diff...
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Published in | Colloids and surfaces Vol. 7; no. 4; pp. 311 - 323 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Amsterdam
Elsevier B.V
01.01.1983
Elsevier |
Subjects | |
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Abstract | The surface chemical composition of various SiO
2-coated titanium dioxide powders was probed by X-ray photoelectron spectroscopy (XPS). The titanium photopeak was detected in addition to the silicon photopeak indicating that the thickness of the SiO
2 coating was < 5 nm. The detection of two different oxides on the coated surfaces was further verified by the doublet oxygen 1s photopeak. The binding energies of each oxygen photopeak coincided well with the oxygen photopeaks from SiO
2 and TiO
2 powders. By means of angular resolved analysis, it was shown that SiO
2 was indeed concentrated on the surface of TiO
2 powder. Also, a good correlation was observed between the magnitude of the Si 2p photoelectron peak area and wt% SiO
2, present on the TiO
2 powder. |
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AbstractList | The surface chemical composition of various SiO
2-coated titanium dioxide powders was probed by X-ray photoelectron spectroscopy (XPS). The titanium photopeak was detected in addition to the silicon photopeak indicating that the thickness of the SiO
2 coating was < 5 nm. The detection of two different oxides on the coated surfaces was further verified by the doublet oxygen 1s photopeak. The binding energies of each oxygen photopeak coincided well with the oxygen photopeaks from SiO
2 and TiO
2 powders. By means of angular resolved analysis, it was shown that SiO
2 was indeed concentrated on the surface of TiO
2 powder. Also, a good correlation was observed between the magnitude of the Si 2p photoelectron peak area and wt% SiO
2, present on the TiO
2 powder. |
Author | Kang, Yoonok Parfitt, G.D. Wightman, J.P. Egerton, T.A. |
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Cites_doi | 10.1016/0166-6622(81)80038-8 10.1016/0368-2048(74)85048-6 10.1016/0368-2048(76)80015-1 10.1021/j100449a004 10.1016/0039-9140(80)80168-8 10.1002/sia.740010106 10.1016/0368-2048(74)85025-5 |
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Keywords | Titanium IV Oxides Transition metal Compounds Photoelectron spectrometry Solid particle X ray Metal Oxides Surface analysis Coatings Silica Powder Modified material |
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References | Parfitt (BIB2) 1980; 52 Fisicaro, Visca, Garbassi, Ceresz (BIB5) 1981; 3 Fadley (BIB6) 1974; 5 Hirokawa, Oku (BIB4) 1980; 27 Brinen (BIB3) 1974; 5 R.K. Iler, U.S. 2 (1959) 885, 366. Scofield (BIB10) 1976; 8 Kang, Skiles, Wightman (BIB12) 1980; 84 Powell (BIB11) 1978; 10 D.W. Dwight, Private communication. Corss, Dewing (BIB8) 1979; 1 Wiseman (BIB1) 1976 Clark, Dilks (BIB7) 1976 Fisicaro (10.1016/0166-6622(83)80058-4_BIB5) 1981; 3 Clark (10.1016/0166-6622(83)80058-4_BIB7) 1976 10.1016/0166-6622(83)80058-4_BIB9 10.1016/0166-6622(83)80058-4_BIB13 Kang (10.1016/0166-6622(83)80058-4_BIB12) 1980; 84 Corss (10.1016/0166-6622(83)80058-4_BIB8) 1979; 1 Parfitt (10.1016/0166-6622(83)80058-4_BIB2) 1980; 52 Wiseman (10.1016/0166-6622(83)80058-4_BIB1) 1976 Powell (10.1016/0166-6622(83)80058-4_BIB11) 1978; 10 Brinen (10.1016/0166-6622(83)80058-4_BIB3) 1974; 5 Scofield (10.1016/0166-6622(83)80058-4_BIB10) 1976; 8 Fadley (10.1016/0166-6622(83)80058-4_BIB6) 1974; 5 Hirokawa (10.1016/0166-6622(83)80058-4_BIB4) 1980; 27 |
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2-coated titanium dioxide powders was probed by X-ray photoelectron spectroscopy (XPS). The titanium photopeak... |
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SubjectTerms | Chemistry Colloidal state and disperse state Exact sciences and technology General and physical chemistry Physical and chemical studies. Granulometry. Electrokinetic phenomena |
Title | XPS analysis of uncoated and silica-coated titanium dioxide powders |
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