Surface-anchored CdS@Ag3PO4 nanocomposite with efficient visible light photocatalytic activity

Yun Kyung Jo; In Young Kim; Jang Mee Lee; Sahn Nahm; Ji Won Choi; Seong Ju Hwang

doi:10.1016/j.matlet.2013.09.091

Surface-anchored CdS@Ag₃PO₄ nanocomposite with efficient visible light photocatalytic activity

Yun Kyung Jo, In Young Kim, Jang Mee Lee, Sahn Nahm, Ji Won Choi, Seong Ju Hwang

Chemistry & Nanoscience

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

40 Scopus citations

Abstract

The surface anchoring of CdS on the surface of Ag₃PO₄ nanoparticle is achieved by an electrostatically-derived assembly between negatively-charged Ag₃PO₄ nanoparticles and positively-charged CdS quantum dots (QDs). The composite formation between Ag₃PO₄ and CdS nanoparticles gives rise not only to an enhancement of visible light absorption but also to a notable depression of photoluminescence signal, confirming the strong electronic coupling between the two components. The present CdS@Ag₃PO₄ nanocomposite displays higher visible light photocatalytic activity than do the precursors Ag₃PO₄ and CdS, demonstrating the usefulness of electrostatically-derived assembly in exploring highly efficient photocatalyst material.

Original language	English
Pages (from-to)	152-155
Number of pages	4
Journal	Materials Letters
Volume	114
DOIs	https://doi.org/10.1016/j.matlet.2013.09.091
State	Published - 2014

Bibliographical note

Funding Information:
This work was supported by Korea Ministry of Environment as “Converging Technology Project” ( 191-101-001 ) and by the Core Technology of Materials Research and Development Program of the Korea Ministry of Intelligence and Economy (Grant No. 10041232 ). The experiments at PAL were supported in part by MOST and POSTECH. The authors thank Prof. T.H. Hyun (SNU, Korea) for helping them collect the TEM data.

Keywords

Colloidal processing
Nanocomposites
Nanoparticles
Nanosize
Particles

Access to Document

10.1016/j.matlet.2013.09.091

Cite this

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title = "Surface-anchored CdS@Ag3PO4 nanocomposite with efficient visible light photocatalytic activity",

abstract = "The surface anchoring of CdS on the surface of Ag3PO4 nanoparticle is achieved by an electrostatically-derived assembly between negatively-charged Ag3PO4 nanoparticles and positively-charged CdS quantum dots (QDs). The composite formation between Ag3PO4 and CdS nanoparticles gives rise not only to an enhancement of visible light absorption but also to a notable depression of photoluminescence signal, confirming the strong electronic coupling between the two components. The present CdS@Ag3PO4 nanocomposite displays higher visible light photocatalytic activity than do the precursors Ag3PO4 and CdS, demonstrating the usefulness of electrostatically-derived assembly in exploring highly efficient photocatalyst material.",

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note = "Funding Information: This work was supported by Korea Ministry of Environment as “Converging Technology Project” ( 191-101-001 ) and by the Core Technology of Materials Research and Development Program of the Korea Ministry of Intelligence and Economy (Grant No. 10041232 ). The experiments at PAL were supported in part by MOST and POSTECH. The authors thank Prof. T.H. Hyun (SNU, Korea) for helping them collect the TEM data. ",

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AU - Jo, Yun Kyung

AU - Kim, In Young

AU - Lee, Jang Mee

AU - Nahm, Sahn

AU - Choi, Ji Won

AU - Hwang, Seong Ju

N1 - Funding Information: This work was supported by Korea Ministry of Environment as “Converging Technology Project” ( 191-101-001 ) and by the Core Technology of Materials Research and Development Program of the Korea Ministry of Intelligence and Economy (Grant No. 10041232 ). The experiments at PAL were supported in part by MOST and POSTECH. The authors thank Prof. T.H. Hyun (SNU, Korea) for helping them collect the TEM data.

PY - 2014

Y1 - 2014

N2 - The surface anchoring of CdS on the surface of Ag3PO4 nanoparticle is achieved by an electrostatically-derived assembly between negatively-charged Ag3PO4 nanoparticles and positively-charged CdS quantum dots (QDs). The composite formation between Ag3PO4 and CdS nanoparticles gives rise not only to an enhancement of visible light absorption but also to a notable depression of photoluminescence signal, confirming the strong electronic coupling between the two components. The present CdS@Ag3PO4 nanocomposite displays higher visible light photocatalytic activity than do the precursors Ag3PO4 and CdS, demonstrating the usefulness of electrostatically-derived assembly in exploring highly efficient photocatalyst material.

AB - The surface anchoring of CdS on the surface of Ag3PO4 nanoparticle is achieved by an electrostatically-derived assembly between negatively-charged Ag3PO4 nanoparticles and positively-charged CdS quantum dots (QDs). The composite formation between Ag3PO4 and CdS nanoparticles gives rise not only to an enhancement of visible light absorption but also to a notable depression of photoluminescence signal, confirming the strong electronic coupling between the two components. The present CdS@Ag3PO4 nanocomposite displays higher visible light photocatalytic activity than do the precursors Ag3PO4 and CdS, demonstrating the usefulness of electrostatically-derived assembly in exploring highly efficient photocatalyst material.

KW - Colloidal processing

KW - Nanocomposites

KW - Nanoparticles

KW - Nanosize

KW - Particles

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