La                         2                         O                         3                          media enhanced electrons transfer for improved CeVO                         4                         @halloysite nanotubes photocatalytic activity for removing tetracycline

Jingru Guan; Jinze Li; Zhefei Ye; Dongyao Wu; Chongyang Liu; Huiqin Wang; Changchang Ma; Pengwei Huo; Yongsheng Yan

doi:10.1016/j.jtice.2018.10.030

La ₂ O ₃ media enhanced electrons transfer for improved CeVO ₄ @halloysite nanotubes photocatalytic activity for removing tetracycline

Jingru Guan, Jinze Li, Zhefei Ye, Dongyao Wu, Chongyang Liu, Huiqin Wang, Changchang Ma, Pengwei Huo, Yongsheng Yan

Jiangsu University

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

45 Scopus citations

Abstract

A series of La ₂ O ₃ /CeVO ₄ @halloysite nanotubes composites were successfully fabricated by the hydrothermal method. The La ₂ O ₃ /CeVO ₄ @halloysite nanotubes composites display outstanding photocatalytic activity for removing tetracycline (TC) solution under visible light irradiation (λ ≥ 420 nm). After irradiation 60 min, an optimized La ₂ O ₃ /CeVO ₄ @halloysite nanotube composite exhibited a high photocatalytic activity (87.1%), which is 3.89 times higher than that of raw CeVO ₄ (22.4%). The improvement of ternary composites performance is attributed to the Ce ³⁺ and Ce ⁴⁺ pairs in CeVO ₄ . Besides, constructing heterojunctions between La ₂ O ₃ and CeVO ₄ can inhibit the recombination of photoinduced electrons and holes, which is ascribed to the La ³⁺ as electron trap to enhance the charge transfer. According to the trapper experiments and Electron Spin Resonance (ESR) analysis, the h ⁺ and •O ²⁻ are major reactive species during the degradation. In addition, the oxygen vacancies are in the ternary photocatalyssts. The photocatalytic degradation intermediates of the solution were identified by High performance liquid chromatography-Mass spectra (HPLC-MS).

Original language	English
Pages (from-to)	281-298
Number of pages	18
Journal	Journal of the Taiwan Institute of Chemical Engineers
Volume	96
DOIs	https://doi.org/10.1016/j.jtice.2018.10.030
State	Published - Mar 2019
Externally published	Yes

Keywords

CeVO
Halloysite nanotubes
Heterostructure
La O
Photocatalytic degradation
Tetracycline

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10.1016/j.jtice.2018.10.030

Cite this

Guan, J., Li, J., Ye, Z., Wu, D., Liu, C., Wang, H., Ma, C., Huo, P., & Yan, Y. (2019). La ₂ O ₃ media enhanced electrons transfer for improved CeVO ₄ @halloysite nanotubes photocatalytic activity for removing tetracycline Journal of the Taiwan Institute of Chemical Engineers, 96, 281-298. https://doi.org/10.1016/j.jtice.2018.10.030

Guan, Jingru ; Li, Jinze ; Ye, Zhefei et al. / La ₂ O ₃ media enhanced electrons transfer for improved CeVO ₄ @halloysite nanotubes photocatalytic activity for removing tetracycline In: Journal of the Taiwan Institute of Chemical Engineers. 2019 ; Vol. 96. pp. 281-298.

@article{396b349671af489181acba846581d080,

title = " La 2 O 3 media enhanced electrons transfer for improved CeVO 4 @halloysite nanotubes photocatalytic activity for removing tetracycline ",

abstract = " A series of La 2 O 3 /CeVO 4 @halloysite nanotubes composites were successfully fabricated by the hydrothermal method. The La 2 O 3 /CeVO 4 @halloysite nanotubes composites display outstanding photocatalytic activity for removing tetracycline (TC) solution under visible light irradiation (λ ≥ 420 nm). After irradiation 60 min, an optimized La 2 O 3 /CeVO 4 @halloysite nanotube composite exhibited a high photocatalytic activity (87.1%), which is 3.89 times higher than that of raw CeVO 4 (22.4%). The improvement of ternary composites performance is attributed to the Ce 3+ and Ce 4+ pairs in CeVO 4 . Besides, constructing heterojunctions between La 2 O 3 and CeVO 4 can inhibit the recombination of photoinduced electrons and holes, which is ascribed to the La 3+ as electron trap to enhance the charge transfer. According to the trapper experiments and Electron Spin Resonance (ESR) analysis, the h + and •O 2− are major reactive species during the degradation. In addition, the oxygen vacancies are in the ternary photocatalyssts. The photocatalytic degradation intermediates of the solution were identified by High performance liquid chromatography-Mass spectra (HPLC-MS).",

keywords = "CeVO, Halloysite nanotubes, Heterostructure, La O, Photocatalytic degradation, Tetracycline",

author = "Jingru Guan and Jinze Li and Zhefei Ye and Dongyao Wu and Chongyang Liu and Huiqin Wang and Changchang Ma and Pengwei Huo and Yongsheng Yan",

note = "Publisher Copyright: {\textcopyright} 2018 Taiwan Institute of Chemical Engineers",

year = "2019",

month = mar,

doi = "10.1016/j.jtice.2018.10.030",

language = "英语",

volume = "96",

pages = "281--298",

journal = "Journal of the Taiwan Institute of Chemical Engineers",

issn = "1876-1070",

publisher = "Taiwan Institute of Chemical Engineers",

}

Guan, J, Li, J, Ye, Z, Wu, D, Liu, C, Wang, H, Ma, C, Huo, P & Yan, Y 2019, ' La ₂ O ₃ media enhanced electrons transfer for improved CeVO ₄ @halloysite nanotubes photocatalytic activity for removing tetracycline ', Journal of the Taiwan Institute of Chemical Engineers, vol. 96, pp. 281-298. https://doi.org/10.1016/j.jtice.2018.10.030

La ₂ O ₃ media enhanced electrons transfer for improved CeVO ₄ @halloysite nanotubes photocatalytic activity for removing tetracycline . / Guan, Jingru; Li, Jinze; Ye, Zhefei et al.
In: Journal of the Taiwan Institute of Chemical Engineers, Vol. 96, 03.2019, p. 281-298.

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

TY - JOUR

T1 - La 2 O 3 media enhanced electrons transfer for improved CeVO 4 @halloysite nanotubes photocatalytic activity for removing tetracycline

AU - Guan, Jingru

AU - Li, Jinze

AU - Ye, Zhefei

AU - Wu, Dongyao

AU - Liu, Chongyang

AU - Wang, Huiqin

AU - Ma, Changchang

AU - Huo, Pengwei

AU - Yan, Yongsheng

PY - 2019/3

Y1 - 2019/3

N2 - A series of La 2 O 3 /CeVO 4 @halloysite nanotubes composites were successfully fabricated by the hydrothermal method. The La 2 O 3 /CeVO 4 @halloysite nanotubes composites display outstanding photocatalytic activity for removing tetracycline (TC) solution under visible light irradiation (λ ≥ 420 nm). After irradiation 60 min, an optimized La 2 O 3 /CeVO 4 @halloysite nanotube composite exhibited a high photocatalytic activity (87.1%), which is 3.89 times higher than that of raw CeVO 4 (22.4%). The improvement of ternary composites performance is attributed to the Ce 3+ and Ce 4+ pairs in CeVO 4 . Besides, constructing heterojunctions between La 2 O 3 and CeVO 4 can inhibit the recombination of photoinduced electrons and holes, which is ascribed to the La 3+ as electron trap to enhance the charge transfer. According to the trapper experiments and Electron Spin Resonance (ESR) analysis, the h + and •O 2− are major reactive species during the degradation. In addition, the oxygen vacancies are in the ternary photocatalyssts. The photocatalytic degradation intermediates of the solution were identified by High performance liquid chromatography-Mass spectra (HPLC-MS).

AB - A series of La 2 O 3 /CeVO 4 @halloysite nanotubes composites were successfully fabricated by the hydrothermal method. The La 2 O 3 /CeVO 4 @halloysite nanotubes composites display outstanding photocatalytic activity for removing tetracycline (TC) solution under visible light irradiation (λ ≥ 420 nm). After irradiation 60 min, an optimized La 2 O 3 /CeVO 4 @halloysite nanotube composite exhibited a high photocatalytic activity (87.1%), which is 3.89 times higher than that of raw CeVO 4 (22.4%). The improvement of ternary composites performance is attributed to the Ce 3+ and Ce 4+ pairs in CeVO 4 . Besides, constructing heterojunctions between La 2 O 3 and CeVO 4 can inhibit the recombination of photoinduced electrons and holes, which is ascribed to the La 3+ as electron trap to enhance the charge transfer. According to the trapper experiments and Electron Spin Resonance (ESR) analysis, the h + and •O 2− are major reactive species during the degradation. In addition, the oxygen vacancies are in the ternary photocatalyssts. The photocatalytic degradation intermediates of the solution were identified by High performance liquid chromatography-Mass spectra (HPLC-MS).

KW - CeVO

KW - Halloysite nanotubes

KW - Heterostructure

KW - La O

KW - Photocatalytic degradation

KW - Tetracycline

UR - http://www.scopus.com/inward/record.url?scp=85057557789&partnerID=8YFLogxK

U2 - 10.1016/j.jtice.2018.10.030

DO - 10.1016/j.jtice.2018.10.030

M3 - 文章

AN - SCOPUS:85057557789

SN - 1876-1070

VL - 96

SP - 281

EP - 298

JO - Journal of the Taiwan Institute of Chemical Engineers

JF - Journal of the Taiwan Institute of Chemical Engineers

ER -

Guan J, Li J, Ye Z, Wu D, Liu C, Wang H et al. La ₂ O ₃ media enhanced electrons transfer for improved CeVO ₄ @halloysite nanotubes photocatalytic activity for removing tetracycline Journal of the Taiwan Institute of Chemical Engineers. 2019 Mar;96:281-298. doi: 10.1016/j.jtice.2018.10.030

La ₂ O ₃ media enhanced electrons transfer for improved CeVO ₄ @halloysite nanotubes photocatalytic activity for removing tetracycline

Abstract

Keywords

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