The effect of morphology and size on the photocatalytic properties of MoS2

被引：84

作者：

Hu, Kun Hong ^{[1
,2
]}

Hu, Xian Guo ^{[1
]}

Xu, Yu Fu ^{[1
]}

Pan, Xiu Zhi ^{[2
]}

机构：

[1] Hefei Univ Technol, Dept Environm Protect & Monitoring, Hefei 230009, Peoples R China

[2] Hefei Univ, Dept Chem & Mat Engn, Hefei 230022, Peoples R China

来源：

REACTION KINETICS MECHANISMS AND CATALYSIS | 2010年 / 100卷 / 01期

关键词：

MoS2; Nanoparticles; Catalytic degradation; Morphology-size effect; Photocatalytic activity; SEMICONDUCTOR NANOCLUSTERS; MOLYBDENUM-DISULFIDE; SULFIDE CATALYSTS; PHOTOOXIDATION; METAL; NANOPARTICLES; DEGRADATION; TIO2; SPECTROSCOPY; EXFOLIATION;

D O I：

10.1007/s11144-010-0173-3

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：

The photocatalytic properties of MoS2 samples including nano-ball, nano-slice and bulk 2H-MoS2 were evaluated and compared with that of the anatase TiO2 using the degradation reaction of methyl orange under visible light. The catalytic behaviors of the samples were also characterized using transmission electron microscopy, Brunauer-Emmett-Teller (BET) surface area, ultraviolet-visible spectroscopy, and FTIR spectroscopy. The results show that the bulk MoS2 and the anatase TiO2 were almost inactive under visible light. The nano-slice presented the most positive catalytic effect because it has a wide absorption at 400-700 nm and a high BET surface area. Though the BET surface area of the nano-ball was lower than that of the nano-slice, it has an active curved basal surface and presented a catalytic activity close to that of the nano-slice. Moreover, the MoS2 nano-slice catalyst could be conveniently regenerated after filtration and drying.

引用

页码：153 / 163

页数：11

共 34 条

[1] Surfactant-assisted synthesis of highly dispersed molybdenum sulfide [J].

Afanasiev, P ;

Xia, GF ;

Berhault, G ;

Jouguet, B ;

Lacroix, M .

CHEMISTRY OF MATERIALS, 1999, 11 (11) :3216-3219

[2] Synthesis and Characterization of Hexamethylenediammonium Thiometallates as Precursors of MoS2 and WS2 Catalysts: In situ Activation During HDS of DBT [J].

Alonso-Nunez, G. ;

Huirache-Acuna, R. ;

Paraguay-Delgado, F. ;

Lumbreras, J. A. ;

Garcia-Alamilla, R. ;

Castillo-Mares, A. ;

Romero, R. ;

Somanathan, R. ;

Chianelli, R. R. .

CATALYSIS LETTERS, 2009, 130 (3-4) :318-326

[3] Characterization of methyl orange and its photocatalytic degradation products by HPLC/UV-VIS diode array and atmospheric pressure ionization quadrupole ion trap mass spectrometry [J].

Baiocchi, C ;

Brussino, MC ;

Pramauro, E ;

Prevot, AB ;

Palmisano, L ;

Marcì, G .

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY, 2002, 214 (02) :247-256

[4] Intercalation chemistry of molybdenum disulfide [J].

Benavente, E ;

Santa Ana, MA ;

Mendizábal, F ;

González, G .

COORDINATION CHEMISTRY REVIEWS, 2002, 224 (1-2) :87-109

[5] Microstructural characterization of highly HDS-active Co6S8-pillared molybdenum sulfides [J].

Brenner, J ;

Marshall, CL ;

Ellis, L ;

Tomczyk, N ;

Heising, J ;

Kanatzidis, M .

CHEMISTRY OF MATERIALS, 1998, 10 (05) :1244-1257

[6] Comparative Photoactivity and Antibacterial Properties of C60 Fullerenes and Titanium Dioxide Nanoparticles [J].

Brunet, Lena ;

Lyon, Delina Y. ;

Hotze, Ernest M. ;

Alvarez, Pedro J. J. ;

Wiesner, Mark R. .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2009, 43 (12) :4355-4360

[7] Visible light induced photodegradation of organic pollutants on dye adsorbed TiO2 surface [J].

Chatterjee, D ;

Mahata, A .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2002, 153 (1-3) :199-204

[8] STRUCTURE-FUNCTION RELATIONS IN MOLYBDENUM SULFIDE CATALYSTS - THE RIM-EDGE MODEL [J].

DAAGE, M ;

CHIANELLI, RR .

JOURNAL OF CATALYSIS, 1994, 149 (02) :414-427

[9] Photo Catalytic Degradation of Imidachloprid Under Solar Light Using Metal Ion Doped TiO2 Nano Particles: Influence of Oxidation State and Electronic Configuration of Dopants [J].

Devi, L. Gomathi ;

Murhty, B. Narasimha ;

Kumar, S. Girish .

CATALYSIS LETTERS, 2009, 130 (3-4) :496-503

[10] HIGH-RATE, GAS-PHASE GROWTH OF MOS2 NESTED INORGANIC FULLERENES AND NANOTUBES [J].

FELDMAN, Y ;

WASSERMAN, E ;

SROLOVITZ, DJ ;

TENNE, R .

SCIENCE, 1995, 267 (5195) :222-225

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