Zn2(CuIn)1−S2 photocatalysts synthesis by a hydrothermal process using H4EDTA as complexing agent

Bănică, Radu; Nyari, Terezia; Sasca, Viorel

doi:10.1016/j.ijhydene.2012.02.181

Cited by 8 publications

(2 citation statements)

References 26 publications

(31 reference statements)

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“…Thus, considerable efforts have been made to develop a novel synthesis method for I-III-VI 2 /ZnS photocatalysts. 140,180,181 Guo et al reported the preparation of (CuIn) x Zn 2(1Àx) S 2 type solid solutions for all 0.01 o x o 0.5 values using a facile hydrothermal route with CTAB as a surfactant. Particles obtained showed a spherical superstructural morphology, and the CTAB helps to increase the specific surface of the photocatalysts.…”

Section: Ib-iiia-via Sulphide Photocatalystsmentioning

confidence: 99%

Metal sulphide semiconductors for photocatalytic hydrogen production

Zhang

Guo

2013

Catal. Sci. Technol.

499

257

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Photocatalytic hydrogen production using semiconductor materials is one of the ideal processes for direct solar energy conversion. Sulphide semiconductor photocatalysts have attracted much attention due to their excellent solar spectrum responses and high photocatalytic activities. This article presents recent research progress in the development of visible light driven sulphide photocatalysts, focusing on the expansion of solar spectrum response and enhancement of charge separation efficiency. As is known, the ultimate goal of photocatalytic hydrogen production is to meet the practical energy demand of human beings. Thus, design of highly efficient and low cost sulphide photocatalysts with excellent sunlight response is highly desired. So we also highlight the crucial issues in the development of highly efficient sulphide photocatalysts without noble metal cocatalysts. The present paper is expected to provide important scientific reference for future works. Finally, the challenges and perspectives in this area are also discussed.

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Section: Ib-iiia-via Sulphide Photocatalystsmentioning

confidence: 99%

Metal sulphide semiconductors for photocatalytic hydrogen production

Zhang

Guo

2013

Catal. Sci. Technol.

499

257

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“…[5][6][7] Some research groups reported how the addition of Zn influences the microstructure and composition of the CuInS 2 absorbers and leads to the change in the electrical properties of the corresponding solar cells. The CuInS 2 -ZnS system's optical properties [5][6][7][8][9][10][11][12] and crystal structure [5][6][7][13][14][15][16][17][18] were reported. Schorr et al reported structure and phase relations of the Zn 2x (CuIn) 1¹x S 2 series.…”

Section: Introductionmentioning

confidence: 99%

Crystallographic and optical properties of CuInSe₂–ZnSe system

Takei

Maeda

Gao

et al. 2014

Jpn. J. Appl. Phys.

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CuIn) 1%x Zn 2x Se 2 (ZCISe) (0.0 : x : 1.0) in the CuInSe 2 -ZnSe system were successfully synthesized by mixing the elemental powders and postheating at 600 °C. X-ray diffraction analysis showed that the lattice constants of ZCISe shortened with increasing Zn content. From the Rietveld refinements of X-ray diffraction data, we found that crystal structure changes from a chalcopyrite-type [I 42d (No. 122)] structure at 0.0 : x : 0.2 to a zinc blende-type [F 43m (No. 216)] structure at 0.6 < x : 1.0. ZCISe with 0.2 < x : 0.6 was a mixed phase of chalcopyrite-type and zinc blendetype. The Cu K-, Zn K-, and Se K-edge X-ray absorption near edge structure (XANES) analyses showed similar results to those of Rietveld refinements of X-ray diffraction data. The band gap of the ZCISe with x = 0.0-0.2 kept almost constant value of E g of CuInSe 2 , about 1 eV. For the samples with x > 0.2, E g of (CuIn) 1%x Zn 2x Se 2 monotonically increases from 1.0 eV at x = 0.2 to 2.6 eV at x = 1.0 (ZnSe).

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