Facile solvothermal synthesis of BiOCl-TiO2 heterostructures with enhanced photocatalytic activity

Dongfeng Sun; Junping Li; Lei He; Bin Zhao; Tingyu Wang; Ruixing Li; Shu Yin; Zhihai Feng; Tsugio Sato

doi:10.1039/c4ce00596a

Facile solvothermal synthesis of BiOCl-TiO₂ heterostructures with enhanced photocatalytic activity

Dongfeng Sun, Junping Li, Lei He, Bin Zhao, Tingyu Wang, Ruixing Li, Shu Yin, Zhihai Feng, Tsugio Sato

IMRAM - Division of Inorganic Material Research

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

63 Citations (Scopus)

Abstract

BiOCl-TiO₂ heterostructures with different Bi to Ti molar ratios were synthesized via a facile one-pot solvothermal process. The as-synthesized BiOCl-TiO₂ heterostructures included TiO₂ nanoparticles deposited on the surface of BiOCl nanoplates. X-ray photoelectron spectroscopy results revealed the TiO₂ of BiOCl-TiO₂ heterostructures doped with Bi³⁺, reduced the band gap energy of the sample. The photocatalytic efficiencies were evaluated by degradation of methylene blue dye under simulated sunlight illumination. Results indicated that the BiOCl-TiO ₂ heterostructures with Bi:Ti = 1:3 exhibited the highest photocatalytic efficiency, which is 73.5 times and 8.5 times higher than that of single phase BiOCl and TiO₂, respectively. In addition, the radical species involved in the degradation process have been investigated by scavenger experiments. Finally, a new mechanism for the photocatalytic action of the BiOCl-TiO₂ heterostructures was put forward. This journal is

Original language	English
Pages (from-to)	7564-7574
Number of pages	11
Journal	CrystEngComm
Volume	16
Issue number	32
DOIs	https://doi.org/10.1039/c4ce00596a
Publication status	Published - 2014 Aug 28

Access to Document

10.1039/c4ce00596a

Cite this

@article{c3ec905bd87f4679bb0db798a106d7ba,

title = "Facile solvothermal synthesis of BiOCl-TiO2 heterostructures with enhanced photocatalytic activity",

abstract = "BiOCl-TiO2 heterostructures with different Bi to Ti molar ratios were synthesized via a facile one-pot solvothermal process. The as-synthesized BiOCl-TiO2 heterostructures included TiO2 nanoparticles deposited on the surface of BiOCl nanoplates. X-ray photoelectron spectroscopy results revealed the TiO2 of BiOCl-TiO2 heterostructures doped with Bi3+, reduced the band gap energy of the sample. The photocatalytic efficiencies were evaluated by degradation of methylene blue dye under simulated sunlight illumination. Results indicated that the BiOCl-TiO 2 heterostructures with Bi:Ti = 1:3 exhibited the highest photocatalytic efficiency, which is 73.5 times and 8.5 times higher than that of single phase BiOCl and TiO2, respectively. In addition, the radical species involved in the degradation process have been investigated by scavenger experiments. Finally, a new mechanism for the photocatalytic action of the BiOCl-TiO2 heterostructures was put forward. This journal is",

author = "Dongfeng Sun and Junping Li and Lei He and Bin Zhao and Tingyu Wang and Ruixing Li and Shu Yin and Zhihai Feng and Tsugio Sato",

year = "2014",

month = aug,

day = "28",

doi = "10.1039/c4ce00596a",

language = "English",

volume = "16",

pages = "7564--7574",

journal = "CrystEngComm",

issn = "1466-8033",

publisher = "Royal Society of Chemistry",

number = "32",

}

TY - JOUR

T1 - Facile solvothermal synthesis of BiOCl-TiO2 heterostructures with enhanced photocatalytic activity

AU - Sun, Dongfeng

AU - Li, Junping

AU - He, Lei

AU - Zhao, Bin

AU - Wang, Tingyu

AU - Li, Ruixing

AU - Yin, Shu

AU - Feng, Zhihai

AU - Sato, Tsugio

PY - 2014/8/28

Y1 - 2014/8/28

N2 - BiOCl-TiO2 heterostructures with different Bi to Ti molar ratios were synthesized via a facile one-pot solvothermal process. The as-synthesized BiOCl-TiO2 heterostructures included TiO2 nanoparticles deposited on the surface of BiOCl nanoplates. X-ray photoelectron spectroscopy results revealed the TiO2 of BiOCl-TiO2 heterostructures doped with Bi3+, reduced the band gap energy of the sample. The photocatalytic efficiencies were evaluated by degradation of methylene blue dye under simulated sunlight illumination. Results indicated that the BiOCl-TiO 2 heterostructures with Bi:Ti = 1:3 exhibited the highest photocatalytic efficiency, which is 73.5 times and 8.5 times higher than that of single phase BiOCl and TiO2, respectively. In addition, the radical species involved in the degradation process have been investigated by scavenger experiments. Finally, a new mechanism for the photocatalytic action of the BiOCl-TiO2 heterostructures was put forward. This journal is

AB - BiOCl-TiO2 heterostructures with different Bi to Ti molar ratios were synthesized via a facile one-pot solvothermal process. The as-synthesized BiOCl-TiO2 heterostructures included TiO2 nanoparticles deposited on the surface of BiOCl nanoplates. X-ray photoelectron spectroscopy results revealed the TiO2 of BiOCl-TiO2 heterostructures doped with Bi3+, reduced the band gap energy of the sample. The photocatalytic efficiencies were evaluated by degradation of methylene blue dye under simulated sunlight illumination. Results indicated that the BiOCl-TiO 2 heterostructures with Bi:Ti = 1:3 exhibited the highest photocatalytic efficiency, which is 73.5 times and 8.5 times higher than that of single phase BiOCl and TiO2, respectively. In addition, the radical species involved in the degradation process have been investigated by scavenger experiments. Finally, a new mechanism for the photocatalytic action of the BiOCl-TiO2 heterostructures was put forward. This journal is

UR - http://www.scopus.com/inward/record.url?scp=84904736278&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84904736278&partnerID=8YFLogxK

U2 - 10.1039/c4ce00596a

DO - 10.1039/c4ce00596a

M3 - Article

AN - SCOPUS:84904736278

SN - 1466-8033

VL - 16

SP - 7564

EP - 7574

JO - CrystEngComm

JF - CrystEngComm

IS - 32

ER -

Facile solvothermal synthesis of BiOCl-TiO₂ heterostructures with enhanced photocatalytic activity

Abstract

Access to Document

Other files and links

Fingerprint

Cite this