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

被引：45

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 50 条

[1] Thermosensitive core-shell microgels: From colloidal model systems to nanoreactors
Lu, Yan
Ballauff, Matthias
PROGRESS IN POLYMER SCIENCE, 2011, 36 (06) : 767 - 792
[2] A versatile approach for the preparation of thermosensitive PNIPAM core-shell microgels with nanoparticle cores
Karg, Matthias
Pastoriza-Santos, Isabel
Liz-Marzan, Luis M.
Hellweg, Thomas
CHEMPHYSCHEM, 2006, 7 (11) : 2298 - 2301
[3] Microfluidic synthesis of Ag@Cu2O core-shell nanoparticles with enhanced photocatalytic activity
Tao, Sha
Yang, Mei
Chen, Huihui
Ren, Mingyue
Chen, Guangwen
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2017, 486 : 16 - 26
[4] A cosolvency effect on tunable thermosensitive core-shell nanoparticle gels
Lee, Sang Min
Bae, Young Chan
SOFT MATTER, 2015, 11 (19) : 3936 - 3945
[5] Fabrication of Cu2O@Cu2O core-shell nanoparticles and conversion to Cu2O@Cu core-shell nanoparticles in solution
Yang, Ai-ling
Li, Shun-pin
Wang, Yu-jin
Wang, Le-le
Bao, Xi-chang
Yang, Ren-qiang
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2015, 25 (11) : 3643 - 3650
[6] Morphologically controllable synthesis of core-shell structured Au@Cu2O with enhanced photocatalytic activity
Yuan, Guotao
Lu, Mengna
Fei, Jiuhui
Guo, Jun
Wang, Zuoshan
RSC ADVANCES, 2015, 5 (88): : 71559 - 71564
[7] Multiplasmon modes for enhancing the photocatalytic activity of Au/Ag/Cu2O core-shell nanorods
Hu, Zhijian
Mi, Yang
Ji, Yinglu
Wang, Rui
Zhou, Weiya
Qiu, Xiaohui
Liu, Xinfeng
Fang, Zheyu
Wu, Xiaochun
NANOSCALE, 2019, 11 (35) : 16445 - 16454
[8] Fabrication and photocatalytic property of ZnO/Cu2O core-shell nanocomposites
He, Zuming
Xia, Yongmei
Tang, Bin
Jiang, Xingfang
Su, Jiangbin
MATERIALS LETTERS, 2016, 184 : 148 - 151
[9] Effects of shell thickness on Ag-Cu2O core-shell nanoparticles with bumpy structures for enhancing photocatalytic activity and stability
Lee, Changsoo
Shin, Kihyun
Lee, Yung Jong
Jung, Chanwon
Lee, Hyuck Mo
CATALYSIS TODAY, 2018, 303 : 313 - 319
[10] Micron-Sized Silica-PNIPAM Core-Shell Microgels with Tunable Shell-To-Core Ratio
Kuk, Keumkyung
Gregel, Lukas
Abgarjan, Vahan
Croonenbrock, Caspar
Haensch, Sebastian
Karg, Matthias
GELS, 2022, 8 (08)

← 1 2 3 4 5 →