Water Stable Zr-Benzenedicarboxylate Metal-Organic Frameworks as Photocatalysts for Hydrogen Generation

被引：761

作者：

Silva, Claudia Gomes ^{[1
]}

Luz, Ignacio ^{[1
]}

Llabres i Xamena, Francesc X. ^{[1
]}

Corma, Avelino ^{[1
]}

Garcia, Hermenegildo ^{[1
]}

机构：

[1] Univ Politecn Valencia, CSIC UPV, Inst Tecnol Quim, Consejo Super Invest Cient, Valencia 46022, Spain

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2010年 / 16卷 / 36期

关键词：

hydrogen; metal-organic frameworks; photocatalysts; zirconium; CHEMISTRY; MOFS;

D O I：

10.1002/chem.200903526

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The Zr-containing metal-organic frameworks (MOFs) formed by terephthalate (UiO-66) and 2-amino-terephthalate ligands [UiO-66(NH2)] are two notably water-resistant MOFs that exhibit photocatalytic activity for hydrogen generation in methanol or water/methanol upon irradiation at wavelength longer than 300 nm. The apparent quantum yield for H-2 generation using monochromatic light at 370 nm in water/methanol 3:1 was of 3.5% for UiO-66(NH2). Laser-flash photolysis has allowed detecting for UiO-66 and UiO-66(NH2) the photochemical generation of a long lived charge separated state whose decay is not complete 300 mu s after the laser flash. Our finding and particularly the influence of the amino group producing a bathochromic shift in the optical spectrum without altering the photochemistry shows promises for the development of more efficient MOFs for water splitting.

引用

页码：11133 / 11138

页数：6

共 36 条

[1] Semiconductor behavior of a metal-organic framework (MOF) [J].

Alvaro, Mercedes ;

Carbonell, Esther ;

Ferrer, Belen ;

Llabres i Xamena, Francesc X. ;

Garcia, Hermenegildo .

CHEMISTRY-A EUROPEAN JOURNAL, 2007, 13 (18) :5106-5112

[2]

[Anonymous], 2008, ANGEW CHEM

[3] Direct measurement of picosecond interfacial electron transfer from photoexcited TiO2 powder to an adsorbed molecule in the opaque suspension [J].

Asahi, T ;

Furube, A ;

Masuhara, H .

CHEMICAL PHYSICS LETTERS, 1997, 275 (3-4) :234-238

[4] EXCITED TRIPLET-STATES AS PROBES IN ORGANIZED SYSTEMS - AN OVERVIEW OF RECENT RESULTS [J].

BOHNE, C ;

BARRA, M ;

BOCH, R ;

ABUIN, EB ;

SCAIANO, JC .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1992, 65 (1-2) :249-265

[5] Electronic and vibrational properties of a MOF-5 metal-organic framework: ZnO quantum dot behaviour [J].

Bordiga, S ;

Lamberti, C ;

Ricchiardi, G ;

Regli, L ;

Bonino, F ;

Damin, A ;

Lillerud, KP ;

Bjorgen, M ;

Zecchina, A .

CHEMICAL COMMUNICATIONS, 2004, (20) :2300-2301

[6] ULTRAFINE AND SPECIFIC CATALYSTS AFFORDING EFFICIENT HYDROGEN EVOLUTION FROM WATER UNDER VISIBLE-LIGHT ILLUMINATION [J].

BRUGGER, PA ;

CUENDET, P ;

GRATZEL, M .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1981, 103 (11) :2923-2927

[7] A new zirconium inorganic building brick forming metal organic frameworks with exceptional stability [J].

Cavka, Jasmina Hafizovic ;

Jakobsen, Soren ;

Olsbye, Unni ;

Guillou, Nathalie ;

Lamberti, Carlo ;

Bordiga, Silvia ;

Lillerud, Karl Petter .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (42) :13850-13851

[8] FEMTOSECOND DIFFUSE-REFLECTANCE SPECTROSCOPY OF TIO2 POWDERS [J].

COLOMBO, DP ;

BOWMAN, RM .

JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (30) :11752-11756

[9] Does interfacial charge transfer compete with charge carrier recombination? A femtosecond diffuse reflectance investigation of TiO2 nanoparticles [J].

Colombo, DP ;

Bowman, RM .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (47) :18445-18449

[10] Zeolite-based photocatalysts [J].

Corma, A ;

Garcia, H .

CHEMICAL COMMUNICATIONS, 2004, (13) :1443-1459

← 1 2 3 4 →