XPS study on microporous titanosilicate ETS-10 upon acid treatment

被引：20

作者：

Lv, L. ^{[1
]}

Lee, F. Y. ^{[1
]}

Zhou, J. ^{[1
]}

Su, F. ^{[1
]}

Zhao, X. S. ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 117576, Singapore

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2006年 / 96卷 / 1-3期

关键词：

microporous titanosilicate ETS-10; acid treatment; XPS;

D O I：

10.1016/j.micromeso.2006.07.006

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

In this work, we studied the structural change of microporous titanosilicate ETS-10 upon post-treatment with nitric acid using X-ray photoelectron spectroscopy (XPS) technique. The experimental results demonstrated that significant leaching of Ti species from the surface of ETS-10 occurred upon acid washing; in the meantime the equilibrium pH of the acidification solution was lowered. Analysis of the Ti 2p and O 1s XPS spectra of the acid-treated ETS-10 samples revealed the formation of tetrahedral Ti species due to Ti leaching from the -O-Ti-O-Ti-O- chains of ETS-10 framework, suggesting that the -O-Ti-O-Ti-O- chains are very sensitive to an acidic environment. (c) 2006 Elsevier Inc. All rights reserved.

引用

页码：270 / 275

页数：6

共 32 条

[1] MICROPOROUS TITANOSILICATE ETS-10 - A STRUCTURAL SURVEY [J].

ANDERSON, MW ;

TERASAKI, O ;

OHSUNA, T ;

MALLEY, PJO ;

PHILIPPOU, A ;

MACKAY, SP ;

FERREIRA, A ;

ROCHA, J ;

LIDIN, S .

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1995, 71 (05) :813-841

[2] STRUCTURE OF THE MICROPOROUS TITANOSILICATE ETS-10 [J].

ANDERSON, MW ;

TERASAKI, O ;

OHSUNA, T ;

PHILIPPOU, A ;

MACKAY, SP ;

FERREIRA, A ;

ROCHA, J ;

LIDIN, S .

NATURE, 1994, 367 (6461) :347-351

[3] X-RAY PHOTOELECTRON-SPECTROSCOPY OF TI-BETA ZEOLITE [J].

BLASCO, T ;

CAMBLOR, MA ;

FIERRO, JLG ;

PEREZPARIENTE, J .

MICROPOROUS MATERIALS, 1994, 3 (03) :259-263

[4] Stoichiometric and sodium-doped titanium silicate molecular sieve containing atomically defined -OTiOTiO- chains:: Quantum ab initio calculations, spectroscopic properties, and reactivity [J].

Bordiga, S ;

Palomino, GT ;

Zecchina, A ;

Ranghino, G ;

Giamello, E ;

Lamberti, C .

JOURNAL OF CHEMICAL PHYSICS, 2000, 112 (08) :3859-3867

[5] Quantum-size effects in the titanosilicate molecular sieve [J].

Borello, E ;

Lamberti, C ;

Bordiga, S ;

Zecchina, A ;

Arean, CO .

APPLIED PHYSICS LETTERS, 1997, 71 (16) :2319-2321

[6] Structure of strontium ion-exchanged ETS-4 microporous molecular sieves [J].

Braunbarth, C ;

Hillhouse, HW ;

Nair, S ;

Tsapatsis, M ;

Burton, A ;

Lobo, RF ;

Jacubinas, RM ;

Kuznicki, SM .

CHEMISTRY OF MATERIALS, 2000, 12 (07) :1857-1865

[7] Shape-selective photocatalytic transformation of phenols in an aqueous medium [J].

Calza, P ;

Pazé, C ;

Pelizzetti, E ;

Zecchina, A .

CHEMICAL COMMUNICATIONS, 2001, (20) :2130-2131

[8]

CARATI A, 1990, MAT RES SOC EXT ABST, V24, P47

[9] Titanium coordination in microporous and mesoporous oxide materials by monochromated X-ray photoelectron spectroscopy and X-ray Auger electron spectroscopy [J].

Contarini, S ;

van der Heide, PAW ;

Prakash, AM ;

Kevan, L .

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 2002, 125 (01) :25-33

[10] Structural, electronic, and vibrational properties of the Ti-O-Ti quantum wires in the titanosilicate ETS-10 [J].

Damin, A ;

Xamena, FXLI ;

Lamberti, C ;

Civalleri, B ;

Zicovich-Wilson, CM ;

Zecchina, A .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (04) :1328-1336

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