A greener route to photoelectrochemically active PbS nanoparticles

被引：87

作者：

Akhtar, Javeed ^{[1
,2
]}

Malik, M. Azad ^{[1
,2
]}

O'Brien, Paul ^{[1
,2
]}

Wijayantha, K. G. U. ^{[3
]}

Dharmadasa, R. ^{[3
]}

Hardman, Samantha J. O. ^{[4
,5
]}

Graham, Darren M. ^{[4
,5
]}

Spencer, Ben F. ^{[4
,5
,6
]}

Stubbs, Stuart K. ^{[4
,5
]}

Flavell, Wendy R. ^{[4
,5
]}

Binks, David J. ^{[4
,5
]}

Sirotti, Fausto ^{[7
]}

El Kazzi, Mario ^{[7
]}

Silly, Mathieu ^{[7
]}

机构：

[1] Univ Manchester, Sch Chem, Manchester M13 9PL, Lancs, England

[2] Univ Manchester, Ctr Mat Sci, Manchester M13 9PL, Lancs, England

[3] Univ Loughborough, Dept Chem, Loughborough LE11 3TU, Leics, England

[4] Univ Manchester, Sch Phys & Astron, Manchester M13 9PL, Lancs, England

[5] Univ Manchester, Photon Sci Inst, Manchester M13 9PL, Lancs, England

[6] STFC, Daresbury Lab, Cockcroft Inst Accelerator Sci & Technol, Warrington WA4 4AD, Cheshire, England

[7] SOLEIL, TEMPO Beamline, Soc Civile Synchrotron, F-91192 Gif Sur Yvette, France

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2010年 / 20卷 / 12期

基金：

英国工程与自然科学研究理事会;

关键词：

QUANTUM DOTS; PHENOLIC COMPONENTS; CDSE NANOCRYSTALS; OLEA-EUROPAEA; OLIVE OIL; MICROCOMPONENTS; STABILIZATION; GLUCOSIDES; EFFICIENT; TOXICITY;

D O I：

10.1039/b924436k

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：

A cheap and more environmentally friendly method for the synthesis of high quality PbS nanoparticles in olive oil at 60 degrees C has been developed. Carefully controlling the conditions of reactions leads to PbS nanoparticles with well-defined sizes, and band gaps between 1.72 and 0.88 eV. The nanoparticles were characterized by XRD, HRTEM, NIR absorption spectroscopy, X-ray photoelectron spectroscopy (XPS) and a fluorescence lifetime experiment based on the time-correlated single photon counting (TCSPC) technique. Photoelectrochemical study carried out by steady-state current-voltage measurements of self-assembled PbS nanoparticles on ZnO-SnO2 electrodes in 1 M Na2SO3 electrolyte solution showed that as-prepared PbS nanoparticles were photochemically active.

引用

页码：2336 / 2344

页数：9

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