Graphene Liquid Marbles as Photothermal Miniature Reactors for Reaction Kinetics Modulation

被引：97

作者：

Gao, Wei ^{[1
,2
]}

Lee, Hiang Kwee ^{[1
,3
]}

Hobley, Jonathan ^{[4
]}

Liu, Tianxi ^{[2
]}

Phang, In Yee ^{[3
]}

Ling, Xing Yi ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Phys & Math Sci, Div Chem & Biol Chem, Singapore 637371, Singapore

[2] Fudan Univ, Dept Macromolecular Sci, State Key Lab Mol Engn Polymers, Shanghai 200433, Peoples R China

[3] ASTAR, Inst Mat Res & Engn, Singapore 117602, Singapore

[4] Univ Brunei Darussalam, Dept Chem, BE-1410 Gadong, Brunei

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2015年 / 54卷 / 13期

基金：

中国国家自然科学基金; 新加坡国家研究基金会;

关键词：

graphene; liquid marble; miniature reactors; photothermal reactions; reaction kinetics modulation; OXIDE;

D O I：

10.1002/anie.201412103

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We demonstrate the fabrication of graphene liquid marbles as photothermal miniature reactors with precise temperature control for reaction kinetics modulation. Graphene liquid marbles show rapid and highly reproducible photothermal behavior while maintaining their excellent mechanical robustness. By tuning the applied laser power, swift regulation of graphene liquid marble's surface temperature between 21-135 degrees C and its encapsulated water temperature between 21-74 degrees C are demonstrated. The temperature regulation modulates the reaction kinetics in our graphene liquid marble, achieving a 12-fold superior reaction rate constant for methylene blue degradation than at room temperature.

引用

页码：3993 / 3996

页数：4

共 22 条

[1] Photothermal Deoxygenation of Graphite Oxide with Laser Excitation in Solution and Graphene-Aided Increase in Water Temperature [J].

Abdelsayed, Victor ;

Moussa, Sherif ;

Hassan, Hassan M. ;

Aluri, Hema S. ;

Collinson, Maryanne M. ;

El-Shall, M. Samy .

JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2010, 1 (19) :2804-2809

[2] Liquid Marbles as Micro-bioreactors for Rapid Blood Typing [J].

Arbatan, Tina ;

Li, Lizi ;

Tian, Junfei ;

Shen, Wei .

ADVANCED HEALTHCARE MATERIALS, 2012, 1 (01) :80-83

[3] Liquid marbles [J].

Aussillous, P ;

Quéré, D .

NATURE, 2001, 411 (6840) :924-927

[4]

Bonaccorso F, 2010, NAT PHOTONICS, V4, P611, DOI [10.1038/NPHOTON.2010.186, 10.1038/nphoton.2010.186]

[5] New insights into liquid marbles [J].

Bormashenko, Edward .

SOFT MATTER, 2012, 8 (43) :11018-11021

[6] Liquid marbles: Properties and applications [J].

Bormashenko, Edward .

CURRENT OPINION IN COLLOID & INTERFACE SCIENCE, 2011, 16 (04) :266-271

[7] Janus Droplets: Liquid Marbles Coated with Dielectric/Semiconductor Particles [J].

Bormashenko, Edward ;

Bormashenko, Yelena ;

Pogreb, Roman ;

Gendelman, Oleg .

LANGMUIR, 2011, 27 (01) :7-10

[8] Understanding the Photothermal Conversion Efficiency of Gold Nanocrystals [J].

Chen, Huanjun ;

Shao, Lei ;

Ming, Tian ;

Sun, Zhenhua ;

Zhao, Chunmei ;

Yang, Baocheng ;

Wang, Jianfang .

SMALL, 2010, 6 (20) :2272-2280

[9] Constructing Robust Liquid Marbles for Miniaturized Synthesis of Graphene/Ag Nanocomposite [J].

Chu, Ying ;

Wang, Zhikui ;

Pan, Qinmin .

ACS APPLIED MATERIALS & INTERFACES, 2014, 6 (11) :8378-8386

[10] Water expansion dynamics after pulsed IR laser heating [J].

Hobley, Jonathan ;

Kuge, Yutaka ;

Gorelik, Sergey ;

Kasuya, Motohiro ;

Hatanaka, Koji ;

Kajimoto, Shinji ;

Fukumura, Hiroshi .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2008, 10 (34) :5256-5263

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