Thermosensitive Cu2O-PNIPAM core-shell nanoreactors with tunable photocatalytic activity

被引：47

作者：

Jia, He ^{[1
]}

Roa, Rafael ^{[1
,2
]}

Angioletti-Uberti, Stefano ^{[1
]}

Henzler, Katja ^{[3
]}

Ott, Andreas ^{[1
]}

Lin, Xianzhong ^{[4
]}

Moeser, Jannik ^{[5
]}

Kochovski, Zdravko ^{[1
]}

Schnegg, Alexander ^{[5
]}

Dzubiella, Joachim ^{[1
,6
]}

Ballauff, Matthias ^{[1
,6
]}

Lu, Yan ^{[1
]}

机构：

[1] Helmholtz Zentrum Berlin Mat & Energie, Soft Matter & Funct Mat, Hahn Meitner Pl 1, Berlin, Germany

[2] Beijing Univ Chem Technol, Int Res Ctr Soft Matter, Beisanhuan East Rd 19, Beijing 100099, Peoples R China

[3] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

[4] Helmholtz Zentrum Berlin Mat & Energie, Heterogeneous Mat & Energie, Hahn Meitner Pl 1, Berlin, Germany

[5] Helmholtz Zentrum Berlin Mat & Energie, Inst Nanospect, Kekulestr 5, Berlin, Germany

[6] Humboldt Univ, Inst Phys, Newtonstr 15, Berlin, Germany

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2016年 / 4卷 / 24期

基金：

欧洲研究理事会;

关键词：

CUPROUS-OXIDE; CATALYTIC-ACTIVITY; CU2O NANOCRYSTALS; NANOPARTICLES; TRANSITION; PARTICLES; EVOLUTION; MICROCRYSTALS; PHOTOCATHODE; AGGREGATION;

D O I：

10.1039/c6ta03528k

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：

We report a facile and novel method for the fabrication of Cu2O@PNIPAM core-shell nanoreactors using Cu2O nanocubes as the core. The PNIPAM shell not only effectively protects the Cu2O nanocubes from oxidation, but also improves the colloidal stability of the system. The Cu2O@PNIPAM core-shell microgels can work efficiently as a photocatalyst for the decomposition of methyl orange under visible light. A significant enhancement in the catalytic activity has been observed for the core-shell microgels compared with that of pure Cu2O nanocubes. Most importantly, the photocatalytic activity of the Cu2O nanocubes can be further tuned by the thermosensitive PNIPAM shell, as rationalized by our recent theory.

引用

页码：9677 / 9684

页数：8

共 48 条

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