Synthesis of Mn-doped ZnS microspheres with enhanced visible light photocatalytic activity

被引：89

作者：

Wang, Lu ^{[1
]}

Wang, Peng ^{[1
]}

Huang, Baibiao ^{[1
]}

Ma, Xiaojuan ^{[2
]}

Wang, Gang ^{[1
]}

Dai, Ying ^{[2
]}

Zhang, Xiaoyang ^{[1
]}

Qin, Xiaoyan ^{[1
]}

机构：

[1] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China

[2] Shandong Univ, Sch Phys, Jinan 250100, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2017年 / 391卷

基金：

中国国家自然科学基金;

关键词：

Hexagonal ZnS; Mn2+ doping; Microsphere; Photocatalysis; Visible light; First principle calculations; BRILLOUIN-ZONE INTEGRATIONS; REDUCED GRAPHENE OXIDE; QUANTUM DOTS; PHOTOLUMINESCENCE; NANOPARTICLES; SULFIDE; WATER; H-2; NANOCRYSTALS; DEGRADATION;

D O I：

10.1016/j.apsusc.2016.06.159

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：

ZnS microspheres with a series of Mn-doping concentration were synthesized via a facile solvothermal route. The phase structures, morphologies, and chemical states were characterized by X-ray powder diffraction, scanning electron microscopy and X-ray photoelectron spectroscopy. The phase structure of the synthesized Mn-ZnS microspheres is hexagonal from the XRD patterns. UV-vis diffuse reflectance spectra were employed to analyze the absorption properties of the samples. The Mn-doped2nS exhibited stronger visible light absorption with the increasing of Mn content. Their photocatalytic activities were evaluated by H-2 production from water and reducing Cr6+ under visible light irradiation. The as-prepared Mn-doped ZnS exhibited better photocatalytic performance than that of pure ZnS and the optimal doping concentration was 7%. The enhancement in photocatalytic activity can be attributed to the expansion of light absorption and the increase in life time of photogenerated carriers. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：557 / 564

页数：8

共 36 条

[1] Cu-doped ZnS hollow particle with high activity for hydrogen generation from alkaline sulfide solution under visible light [J].

Arai, Takeo ;

Senda, Shin-ichiro ;

Sato, Yoshinori ;

Takahashi, Hideyuki ;

Shinoda, Kozo ;

Jeyadevan, Balachandran ;

Tohji, Kazuyuki .

CHEMISTRY OF MATERIALS, 2008, 20 (05) :1997-2000

[2] IMPROVED TETRAHEDRON METHOD FOR BRILLOUIN-ZONE INTEGRATIONS [J].

BLOCHL, PE ;

JEPSEN, O ;

ANDERSEN, OK .

PHYSICAL REVIEW B, 1994, 49 (23) :16223-16233

[3] Chemical Synthesis of ZnS:Cu Nanosheets [J].

Bodo, Bhaskarjyoti ;

Kalita, P. K. .

INTERNATIONAL CONFERENCE ON ADVANCED NANOMATERIALS AND NANOTECHNOLOGY (ICANN 2009), 2010, 1276 :31-36

[4] Synthesis, characterization and photoluminescence studies of undoped ZnS nanoparticles [J].

Chandrakar, Raju Kumar ;

Baghel, R. N. ;

Chandra, V. K. ;

Chandra, B. P. .

SUPERLATTICES AND MICROSTRUCTURES, 2015, 84 :132-143

[5] Influence of physicochemical-electronic properties of transition metal ion doped polycrystalline titania on the photocatalytic degradation of Indigo Carmine and 4-nitrophenol under UV/solar light [J].

Devi, L. Gomathi ;

Kumar, S. Girish .

APPLIED SURFACE SCIENCE, 2011, 257 (07) :2779-2790

[6] Enhanced photocatalytic activity of transition metal ions Mn2+, Ni2+ and Zn2+ doped polycrystalline titania for the degradation of Aniline Blue under UV/solar light [J].

Devi, L. Gomathi ;

Kottam, Nagaraju ;

Murthy, B. Narasimha ;

Kumar, S. Girish .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2010, 328 (1-2) :44-52

[7] Effect of effective mass and spontaneous polarization on photocatalytic activity of wurtzite and zinc-blende ZnS [J].

Dong, Ming ;

Zhang, Jinfeng ;

Yu, Jiaguo .

APL MATERIALS, 2015, 3 (10)

[8] Cationic substitution sites in Mn2+-doped ZnS nanoparticles [J].

Beermann P.A.G. ;

McGarvey B.R. ;

Skadtchenko B.O. ;

Muralidharan S. ;

Sung R.C.W. .

Journal of Nanoparticle Research, 2006, 8 (2) :235-241

[9] Surface Properties and Photocatalytic Activities of the Colloidal ZnS:Mn Nanocrystals Prepared at Various pH Conditions [J].

Heo, Jungho ;

Hwang, Cheong-Soo .

NANOMATERIALS, 2015, 5 (04) :1955-1970

[10] Enhanced photoreduction of Cr(VI) using ZnS(en)0.5 hybrid semiconductor [J].

Hernandez-Gordillo, Agileo ;

Tzompantzi, Francisco ;

Gomez, Ricardo .

CATALYSIS COMMUNICATIONS, 2012, 19 :51-55

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