Metal Nanoparticle/Carbon Quantum Dot Composite as a Photocatalyst for High-Efficiency Cyclohexane Oxidation

被引：300

作者：

Liu, Ruihua ^{[1
,2
]}

Huang, Hui ^{[1
,2
]}

Li, Haitao ^{[1
,2
]}

Liu, Yang ^{[1
,2
]}

Zhong, Jun ^{[1
,2
]}

Li, Youyong ^{[1
,2
]}

Zhang, Shuo ^{[3
]}

Kang, Zhenhui ^{[1
,2
]}

机构：

[1] Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Suzhou, Peoples R China

[2] Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou, Peoples R China

[3] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai, Peoples R China

来源：

ACS CATALYSIS | 2014年 / 4卷 / 01期

基金：

中国国家自然科学基金;

关键词：

carbon quantum dots; composites; cyclohexane oxidation; photocatalysis; selective oxidation; SELECTIVE OXIDATION; GOLD NANOPARTICLES; CATALYTIC-OXIDATION; CARBON NANODOTS; HYDROGEN-PEROXIDE; LOW-TEMPERATURE; ADIPIC ACID; X-RAY; HYDROXYLATION; HYDROCARBONS;

D O I：

10.1021/cs400913h

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：

High-efficiency and high-selectivity catalytic oxidation of alkanes under mild conditions is a major objective of current catalysis chemistry and chemical production. Despite extensive development efforts on new catalysts for cyclohexane oxidation, current commercial processes still suffer from low conversion, poor selectivity, and excessive production of waste. We demonstrate the design and synthesis of composites made from metal nanoparticles and carbon quantum dots (CQDs) for high-efficiency and high-selectivity photocatalyst systems for the green oxidation of cyclohexane. Remarkably, the present Au nanoparticles/CQDs composite photocatalyst yields 63.8% conversion efficiency and 99.9% selectivity for the green oxidation of cyclohexane to cyclohexanone, using H2O2 under visible light at room temperature. Given its diversity and versatility of structural and composition design, metal nanoparticles/CQDs composites may provide a powerful pathway for the development of high-performance catalysts and production processes for green chemical industry.

引用

页码：328 / 336

页数：9

共 35 条

[11] Efficient and Selective Photocatalytic Cyclohexane Oxidation on a Layered Titanate Modified with Iron Oxide under Sunlight and CO2 Atmosphere [J].

Hattori, Hideya ;

Ide, Yusuke ;

Ogo, Shuhei ;

Inumaru, Kei ;

Sadakane, Masahiro ;

Sano, Tsuneji .

ACS CATALYSIS, 2012, 2 (09) :1910-1915

[12] CHARGE REDISTRIBUTION IN AUZN - AN X-RAY-ABSORPTION NEAR-EDGE-STRUCTURE STUDY [J].

JIANG, DT ;

SHAM, TK ;

NORTON, PR ;

HEALD, SM .

PHYSICAL REVIEW B, 1994, 49 (06) :3709-3712

[13] Heterogeneous hydroxylation catalyzed by multi-walled carbon nanotubes at low temperature [J].

Kang, ZH ;

Wang, EB ;

Mao, BD ;

Su, ZM ;

Gao, L ;

Niu, L ;

Shan, HY ;

Xu, L .

APPLIED CATALYSIS A-GENERAL, 2006, 299 :212-217

[14] Near-infrared light controlled photocatalytic activity of carbon quantum dots for highly selective oxidation reaction [J].

Li, Haitao ;

Liu, Ruihua ;

Lian, Suoyuan ;

Liu, Yang ;

Huang, Hui ;

Kang, Zhenhui .

NANOSCALE, 2013, 5 (08) :3289-3297

[15] Carbon nanodots: synthesis, properties and applications [J].

Li, Haitao ;

Kang, Zhenhui ;

Liu, Yang ;

Lee, Shuit-Tong .

JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (46) :24230-24253

[16] Water-Soluble Fluorescent Carbon Quantum Dots and Photocatalyst Design [J].

Li, Haitao ;

He, Xiaodie ;

Kang, Zhenhui ;

Huang, Hui ;

Liu, Yang ;

Liu, Jinglin ;

Lian, Suoyuan ;

Tsang, Chi Him A. ;

Yang, Xiaobao ;

Lee, Shuit-Tong .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2010, 49 (26) :4430-4434

[17] Selective Oxidation of Cyclohexane over Transition-Metal-Incorporated HMS in a Solvent-Free System [J].

Li, Jun ;

Shi, Yong ;

Xu, Li ;

Lu, Guanzhong .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2010, 49 (11) :5392-5399

[18] Gold nanoparticles in mesoporous materials showing catalytic selective oxidation cyclohexane using oxygen [J].

Lü, GM ;

Ji, D ;

Qian, G ;

Qi, YX ;

Wang, XL ;

Suo, JS .

APPLIED CATALYSIS A-GENERAL, 2005, 280 (02) :175-180

[19] Synthesis of gold@carbon dots composite nanoparticles for surface enhanced Raman scattering [J].

Luo, Peihui ;

Li, Chun ;

Shi, Gaoquan .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2012, 14 (20) :7360-7366

[20] Large scale electrochemical synthesis of high quality carbon nanodots and their photocatalytic property [J].

Ming, Hai ;

Ma, Zheng ;

Liu, Yang ;

Pan, Keming ;

Yu, Hang ;

Wang, Fang ;

Kang, Zhenhui .

DALTON TRANSACTIONS, 2012, 41 (31) :9526-9531

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