Synthesis of chemically bonded BiOCl@Bi                         2                         WO                         6                          microspheres with exposed (0 2 0) Bi                         2                         WO                         6                          facets and their enhanced photocatalytic activities under visible light irradiation

Yongchao Ma; Zhiwei Chen; Dan Qu; Jinsheng Shi

doi:10.1016/j.apsusc.2015.11.130

Synthesis of chemically bonded BiOCl@Bi ₂ WO ₆ microspheres with exposed (0 2 0) Bi ₂ WO ₆ facets and their enhanced photocatalytic activities under visible light irradiation

Yongchao Ma
, Zhiwei Chen
, Dan Qu
, Jinsheng Shi

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

96 Scopus citations

Abstract

Bi ₂ WO ₆ photocatalysts has been extensively studied for its photocatalytic activity. However, few works have been conducted on hierarchical Bi ₂ WO ₆ composite photocatalysts with specifically exposed facets. In this work, we report a facile method to synthesize BiOCl@Bi ₂ WO ₆ hierarchical composite microspheres. Bi ₂ WO ₆ nanosheets with specifically exposed (0 2 0) facet were directly formed on the surface of BiOCl precursor microspheres via a controlled anion exchange route between BiOCl and Na ₂ WO ₄ . The visible-light photocatalytic activity of the BiOCl@Bi ₂ WO ₆ heterojunction with exposed (0 2 0) facets (denoted as BiOCl@Bi ₂ WO ₆ ) was investigated by degradation of Rhodamine B (RhB) and ciprofloxacin (CIP) aqueous solution under visible light irradiation. The experimental results indicated that the BiOCl@Bi ₂ WO ₆ composite microsphere with intimate interfacial contacts exhibited improved efficiency for RhB photodegradation in comparison with pure BiOCl and Bi ₂ WO ₆ . The BiOCl@Bi ₂ WO ₆ composite microsphere also shows high photocatalytic activity for degradation of CIP under visible light irradiation. The enhanced photocatalytic performance of BiOCl@Bi ₂ WO ₆ -020 hierarchical microspheres can be ascribed to the improved visible light harvesting ability, high charge separation and transfer. This work will make significant contributions toward the exploration of novel heterostructures with high potential in photocatalytic applications.

Original language	English
Pages (from-to)	63-71
Number of pages	9
Journal	Applied Surface Science
Volume	361
DOIs	https://doi.org/10.1016/j.apsusc.2015.11.130
State	Published - 15 Jan 2016
Externally published	Yes

Keywords

BiOCl@Bi WO
Composite photocatalysts
Controlled anion exchange
Exposed facets
Photocatalysis

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10.1016/j.apsusc.2015.11.130

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Ma, Y., Chen, Z., Qu, D., & Shi, J. (2016). Synthesis of chemically bonded BiOCl@Bi ₂ WO ₆ microspheres with exposed (0 2 0) Bi ₂ WO ₆ facets and their enhanced photocatalytic activities under visible light irradiation Applied Surface Science, 361, 63-71. https://doi.org/10.1016/j.apsusc.2015.11.130

Ma, Yongchao ; Chen, Zhiwei ; Qu, Dan et al. / Synthesis of chemically bonded BiOCl@Bi ₂ WO ₆ microspheres with exposed (0 2 0) Bi ₂ WO ₆ facets and their enhanced photocatalytic activities under visible light irradiation In: Applied Surface Science. 2016 ; Vol. 361. pp. 63-71.

@article{95879577ccf441d58b2dd65417068de2,

title = " Synthesis of chemically bonded BiOCl@Bi 2 WO 6 microspheres with exposed (0 2 0) Bi 2 WO 6 facets and their enhanced photocatalytic activities under visible light irradiation ",

abstract = " Bi 2 WO 6 photocatalysts has been extensively studied for its photocatalytic activity. However, few works have been conducted on hierarchical Bi 2 WO 6 composite photocatalysts with specifically exposed facets. In this work, we report a facile method to synthesize BiOCl@Bi 2 WO 6 hierarchical composite microspheres. Bi 2 WO 6 nanosheets with specifically exposed (0 2 0) facet were directly formed on the surface of BiOCl precursor microspheres via a controlled anion exchange route between BiOCl and Na 2 WO 4 . The visible-light photocatalytic activity of the BiOCl@Bi 2 WO 6 heterojunction with exposed (0 2 0) facets (denoted as BiOCl@Bi 2 WO 6 ) was investigated by degradation of Rhodamine B (RhB) and ciprofloxacin (CIP) aqueous solution under visible light irradiation. The experimental results indicated that the BiOCl@Bi 2 WO 6 composite microsphere with intimate interfacial contacts exhibited improved efficiency for RhB photodegradation in comparison with pure BiOCl and Bi 2 WO 6 . The BiOCl@Bi 2 WO 6 composite microsphere also shows high photocatalytic activity for degradation of CIP under visible light irradiation. The enhanced photocatalytic performance of BiOCl@Bi 2 WO 6 -020 hierarchical microspheres can be ascribed to the improved visible light harvesting ability, high charge separation and transfer. This work will make significant contributions toward the exploration of novel heterostructures with high potential in photocatalytic applications.",

keywords = "BiOCl@Bi WO, Composite photocatalysts, Controlled anion exchange, Exposed facets, Photocatalysis",

author = "Yongchao Ma and Zhiwei Chen and Dan Qu and Jinsheng Shi",

year = "2016",

month = jan,

day = "15",

doi = "10.1016/j.apsusc.2015.11.130",

language = "英语",

volume = "361",

pages = "63--71",

journal = "Applied Surface Science",

issn = "0169-4332",

publisher = "Elsevier B.V.",

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Ma, Y, Chen, Z, Qu, D & Shi, J 2016, ' Synthesis of chemically bonded BiOCl@Bi ₂ WO ₆ microspheres with exposed (0 2 0) Bi ₂ WO ₆ facets and their enhanced photocatalytic activities under visible light irradiation ', Applied Surface Science, vol. 361, pp. 63-71. https://doi.org/10.1016/j.apsusc.2015.11.130

Synthesis of chemically bonded BiOCl@Bi ₂ WO ₆ microspheres with exposed (0 2 0) Bi ₂ WO ₆ facets and their enhanced photocatalytic activities under visible light irradiation . / Ma, Yongchao; Chen, Zhiwei; Qu, Dan et al.
In: Applied Surface Science, Vol. 361, 15.01.2016, p. 63-71.

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

TY - JOUR

T1 - Synthesis of chemically bonded BiOCl@Bi 2 WO 6 microspheres with exposed (0 2 0) Bi 2 WO 6 facets and their enhanced photocatalytic activities under visible light irradiation

AU - Ma, Yongchao

AU - Chen, Zhiwei

AU - Qu, Dan

AU - Shi, Jinsheng

PY - 2016/1/15

Y1 - 2016/1/15

N2 - Bi 2 WO 6 photocatalysts has been extensively studied for its photocatalytic activity. However, few works have been conducted on hierarchical Bi 2 WO 6 composite photocatalysts with specifically exposed facets. In this work, we report a facile method to synthesize BiOCl@Bi 2 WO 6 hierarchical composite microspheres. Bi 2 WO 6 nanosheets with specifically exposed (0 2 0) facet were directly formed on the surface of BiOCl precursor microspheres via a controlled anion exchange route between BiOCl and Na 2 WO 4 . The visible-light photocatalytic activity of the BiOCl@Bi 2 WO 6 heterojunction with exposed (0 2 0) facets (denoted as BiOCl@Bi 2 WO 6 ) was investigated by degradation of Rhodamine B (RhB) and ciprofloxacin (CIP) aqueous solution under visible light irradiation. The experimental results indicated that the BiOCl@Bi 2 WO 6 composite microsphere with intimate interfacial contacts exhibited improved efficiency for RhB photodegradation in comparison with pure BiOCl and Bi 2 WO 6 . The BiOCl@Bi 2 WO 6 composite microsphere also shows high photocatalytic activity for degradation of CIP under visible light irradiation. The enhanced photocatalytic performance of BiOCl@Bi 2 WO 6 -020 hierarchical microspheres can be ascribed to the improved visible light harvesting ability, high charge separation and transfer. This work will make significant contributions toward the exploration of novel heterostructures with high potential in photocatalytic applications.

AB - Bi 2 WO 6 photocatalysts has been extensively studied for its photocatalytic activity. However, few works have been conducted on hierarchical Bi 2 WO 6 composite photocatalysts with specifically exposed facets. In this work, we report a facile method to synthesize BiOCl@Bi 2 WO 6 hierarchical composite microspheres. Bi 2 WO 6 nanosheets with specifically exposed (0 2 0) facet were directly formed on the surface of BiOCl precursor microspheres via a controlled anion exchange route between BiOCl and Na 2 WO 4 . The visible-light photocatalytic activity of the BiOCl@Bi 2 WO 6 heterojunction with exposed (0 2 0) facets (denoted as BiOCl@Bi 2 WO 6 ) was investigated by degradation of Rhodamine B (RhB) and ciprofloxacin (CIP) aqueous solution under visible light irradiation. The experimental results indicated that the BiOCl@Bi 2 WO 6 composite microsphere with intimate interfacial contacts exhibited improved efficiency for RhB photodegradation in comparison with pure BiOCl and Bi 2 WO 6 . The BiOCl@Bi 2 WO 6 composite microsphere also shows high photocatalytic activity for degradation of CIP under visible light irradiation. The enhanced photocatalytic performance of BiOCl@Bi 2 WO 6 -020 hierarchical microspheres can be ascribed to the improved visible light harvesting ability, high charge separation and transfer. This work will make significant contributions toward the exploration of novel heterostructures with high potential in photocatalytic applications.

KW - BiOCl@Bi WO

KW - Composite photocatalysts

KW - Controlled anion exchange

KW - Exposed facets

KW - Photocatalysis

UR - https://www.scopus.com/pages/publications/84952360963

U2 - 10.1016/j.apsusc.2015.11.130

DO - 10.1016/j.apsusc.2015.11.130

M3 - 文章

AN - SCOPUS:84952360963

SN - 0169-4332

VL - 361

SP - 63

EP - 71

JO - Applied Surface Science

JF - Applied Surface Science

ER -

Ma Y, Chen Z, Qu D, Shi J. Synthesis of chemically bonded BiOCl@Bi ₂ WO ₆ microspheres with exposed (0 2 0) Bi ₂ WO ₆ facets and their enhanced photocatalytic activities under visible light irradiation Applied Surface Science. 2016 Jan 15;361:63-71. doi: 10.1016/j.apsusc.2015.11.130

Synthesis of chemically bonded BiOCl@Bi ₂ WO ₆ microspheres with exposed (0 2 0) Bi ₂ WO ₆ facets and their enhanced photocatalytic activities under visible light irradiation

Abstract

Keywords

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