Preparation of stable CdS nanoparticles in aqueous medium and their hydrogen generation efficiencies in photolysis of water

被引：65

作者：

Girginer, Burcu ^{[1
]}

Galli, Giancarlo ^{[2
]}

Chiellini, Emo ^{[2
]}

Bicak, Niyazi ^{[1
]}

机构：

[1] Istanbul Tech Univ, Dept Chem, TR-34469 Istanbul, Turkey

[2] Univ Pisa, Dept Chem, I-56126 Pisa, Italy

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2009年 / 34卷 / 03期

关键词：

Hydrogen production; Nanoparticles; Water decomposition; Photocatalysis; Water soluble polymers; SEMICONDUCTOR-POLYMER COMPOSITES; SULFIDE NANOPARTICLES; SIZE CONTROL; NANOCRYSTALS; MICROEMULSION; COPOLYMER;

D O I：

10.1016/j.ijhydene.2008.10.086

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Diallyl dimethyl ammonium chloride (DADMAC)-N-vinyl 2-pyrrolidinone (NVP) copolymers were demonstrated to provide excellent stabilities for in situ generated CdS nanoparticles in aqueous medium. Nearly transparent and stable CdS dispersions (up to 0.1 M concentrations) were produced in 1% copolymer solutions. Experiments showed that, increasing DADMAC content induces greater stabilization. UV-visible spectroscopy, fluorescence spectroscopy, X-ray diffraction (XRD) and transmission electron microscopy (TEM) were used for characterization of the stable nanoparticles. TEM images showed snake-like alignment of nonspherical CdS nanoparticles with 50-70 nm of size, due to template effect of the cationically charged polymer. The CdS nanoparticles in aqueous medium showed reasonably high catalytic activities in photolysis of water, as inferred from hydrogen evolution measurements carried out in the absence and presence of noble metals, Pd and Pt. The highest hydrogen evolution rate (5.6 mL per gram of CdS in min) was detected in the presence of Pt metal, while illuminating with mercury lamp (160 W). (C) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

引用

页码：1176 / 1184

页数：9

共 40 条

[11] Polymerization of water soluble cationic vinyl monomers [J].

Jaeger, W ;

Hahn, M ;

Lieske, A ;

Zimmermann, A ;

Brand, F .

MACROMOLECULAR SYMPOSIA, 1996, 111 :95-106

[12]

*JCPDS INT CTR DIF, 1982, 10454 JCPDS INT CTR

[13]

JIANXI Y, 2003, MICROELECTRON ENG, V66, P115, DOI DOI 10.1016/S0167-9317(03)00034-0

[14]

KORPE S, 2008, J APPL POLYM S UNPUB

[15] Development of photocatalyst materials for water splitting [J].

Kudo, A .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2006, 31 (02) :197-202

[16] Phase transfer of aqueous CdS nanoparticles by coordination with octadecanethiol molecules present in nonpolar organic solvents [J].

Kumar, A ;

Mandale, AB ;

Sastry, M .

LANGMUIR, 2000, 16 (24) :9299-9302

[17] A photochemical method for controlling the size of CdS nanoparticles [J].

Marandi, M ;

Taghavinia, N ;

Zad, AI ;

Mahdavi, SM .

NANOTECHNOLOGY, 2005, 16 (02) :334-338

[18] SIZE CONTROL OF NANOPARTICLES IN SEMICONDUCTOR-POLYMER COMPOSITES .2. CONTROL VIA SIZES OF SPHERICAL IONIC MICRODOMAINS IN STYRENE-BASED DIBLOCK IONOMERS [J].

MOFFITT, M ;

MCMAHON, L ;

PESSEL, V ;

EISENBERG, A .

CHEMISTRY OF MATERIALS, 1995, 7 (06) :1185-1192

[19] SIZE CONTROL OF NANOPARTICLES IN SEMICONDUCTOR-POLYMER COMPOSITES .1. CONTROL VIA MULTIPLET AGGREGATION NUMBERS IN STYRENE-BASED RANDOM IONOMERS [J].

MOFFITT, M ;

EISENBERG, A .

CHEMISTRY OF MATERIALS, 1995, 7 (06) :1178-1184

[20] Size and structure-dependent photocatalytic activity of jingle-bell-shaped silica-coated cadmium sulfide nanoparticles for methanol dehydrogenation [J].

Pal, B ;

Torimoto, T ;

Iwasaki, K ;

Shibayama, T ;

Takahashi, H ;

Ohtani, B .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (48) :18670-18674

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