Structural, textural and photocatalytic properties of quantum-sized In2S3-sensitized Ti-MCM-41 prepared by ion-exchange and sulfidation methods

Shaohua Shen; Liejin Guo

doi:10.1016/j.jssc.2006.05.010

Structural, textural and photocatalytic properties of quantum-sized In₂S₃-sensitized Ti-MCM-41 prepared by ion-exchange and sulfidation methods

School of Energy and Power Engineering

Research output: Contribution to journal › Article › peer-review

53 Scopus citations

Abstract

In₂S₃ nanocrystallites were successfully encapsulated into the mesopores of Ti-MCM-41 by a two-step method involving ion-exchange and sulfidation. The X-ray diffraction (XRD) patterns, UV-vis absorption spectra (UV-Vis), high-resolution transmission electron microscopy (HRTEM) and N₂ adsorption-desorption isotherms were used to characterize the structure of the composite materials. It is found that the diameter of most In₂S₃ nanocrystallites is about 2.5 nm, less than the pore size of Ti-MCM-41. The In₂S₃ nanocrystallites inside the Ti-MCM-41 host show a significant blue-shift in the UV-vis absorption spectra. Under irradiation of visible light (λ > 430 nm), the composite material has much higher photocatalytic activity for hydrogen evolution than bulk In₂S₃. It can be explained by the effective charge-separation in the quantum-sized In₂S₃-sensitized Ti-MCM-41.

Original language	English
Pages (from-to)	2629-2635
Number of pages	7
Journal	Journal of Solid State Chemistry
Volume	179
Issue number	8
DOIs	https://doi.org/10.1016/j.jssc.2006.05.010
State	Published - Aug 2006

Keywords

Charge separation
Hydrogen evolution
Quantum-sized InS
Ti-MCM-41
Visible light

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10.1016/j.jssc.2006.05.010

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@article{5432cd7e50664324b58dce9a4288ebb8,

title = "Structural, textural and photocatalytic properties of quantum-sized In2S3-sensitized Ti-MCM-41 prepared by ion-exchange and sulfidation methods",

abstract = "In2S3 nanocrystallites were successfully encapsulated into the mesopores of Ti-MCM-41 by a two-step method involving ion-exchange and sulfidation. The X-ray diffraction (XRD) patterns, UV-vis absorption spectra (UV-Vis), high-resolution transmission electron microscopy (HRTEM) and N2 adsorption-desorption isotherms were used to characterize the structure of the composite materials. It is found that the diameter of most In2S3 nanocrystallites is about 2.5 nm, less than the pore size of Ti-MCM-41. The In2S3 nanocrystallites inside the Ti-MCM-41 host show a significant blue-shift in the UV-vis absorption spectra. Under irradiation of visible light (λ > 430 nm), the composite material has much higher photocatalytic activity for hydrogen evolution than bulk In2S3. It can be explained by the effective charge-separation in the quantum-sized In2S3-sensitized Ti-MCM-41.",

keywords = "Charge separation, Hydrogen evolution, Quantum-sized InS, Ti-MCM-41, Visible light",

author = "Shaohua Shen and Liejin Guo",

year = "2006",

month = aug,

doi = "10.1016/j.jssc.2006.05.010",

language = "英语",

volume = "179",

pages = "2629--2635",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press Inc.",

number = "8",

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TY - JOUR

T1 - Structural, textural and photocatalytic properties of quantum-sized In2S3-sensitized Ti-MCM-41 prepared by ion-exchange and sulfidation methods

AU - Shen, Shaohua

AU - Guo, Liejin

PY - 2006/8

Y1 - 2006/8

N2 - In2S3 nanocrystallites were successfully encapsulated into the mesopores of Ti-MCM-41 by a two-step method involving ion-exchange and sulfidation. The X-ray diffraction (XRD) patterns, UV-vis absorption spectra (UV-Vis), high-resolution transmission electron microscopy (HRTEM) and N2 adsorption-desorption isotherms were used to characterize the structure of the composite materials. It is found that the diameter of most In2S3 nanocrystallites is about 2.5 nm, less than the pore size of Ti-MCM-41. The In2S3 nanocrystallites inside the Ti-MCM-41 host show a significant blue-shift in the UV-vis absorption spectra. Under irradiation of visible light (λ > 430 nm), the composite material has much higher photocatalytic activity for hydrogen evolution than bulk In2S3. It can be explained by the effective charge-separation in the quantum-sized In2S3-sensitized Ti-MCM-41.

AB - In2S3 nanocrystallites were successfully encapsulated into the mesopores of Ti-MCM-41 by a two-step method involving ion-exchange and sulfidation. The X-ray diffraction (XRD) patterns, UV-vis absorption spectra (UV-Vis), high-resolution transmission electron microscopy (HRTEM) and N2 adsorption-desorption isotherms were used to characterize the structure of the composite materials. It is found that the diameter of most In2S3 nanocrystallites is about 2.5 nm, less than the pore size of Ti-MCM-41. The In2S3 nanocrystallites inside the Ti-MCM-41 host show a significant blue-shift in the UV-vis absorption spectra. Under irradiation of visible light (λ > 430 nm), the composite material has much higher photocatalytic activity for hydrogen evolution than bulk In2S3. It can be explained by the effective charge-separation in the quantum-sized In2S3-sensitized Ti-MCM-41.

KW - Charge separation

KW - Hydrogen evolution

KW - Quantum-sized InS

KW - Ti-MCM-41

KW - Visible light

UR - https://www.scopus.com/pages/publications/33746321853

U2 - 10.1016/j.jssc.2006.05.010

DO - 10.1016/j.jssc.2006.05.010

M3 - 文章

AN - SCOPUS:33746321853

SN - 0022-4596

VL - 179

SP - 2629

EP - 2635

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

IS - 8

ER -

Structural, textural and photocatalytic properties of quantum-sized In₂S₃-sensitized Ti-MCM-41 prepared by ion-exchange and sulfidation methods

Abstract

Keywords

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