One-step synthesis of ZIF-8/ZnO composites based on coordination defect strategy and its derivatives for photocatalysis

Hang bo Zheng; Di Wu; Yuan li Wang; Xiao pan Liu; Peng zhao Gao; Wei Liu; Jin Wen; Evgeny V. Rebrov

doi:10.1016/j.jallcom.2020.155219

One-step synthesis of ZIF-8/ZnO composites based on coordination defect strategy and its derivatives for photocatalysis

Hang bo Zheng, Di Wu, Yuan li Wang, Xiao pan Liu, Peng zhao Gao, Wei Liu, Jin Wen, Evgeny V. Rebrov

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

71 Citations (Scopus)

Abstract

A new approach was proposed for the preparation of metal–organic framework/metal oxide composites in one step using only metal salts. Here, crystalline rhombohedral dodecahedron ZIF-8, hollow ZnO microsphere, and ZIF-8/ZnO composites were obtained in different one-pot solvothermal processes where the growth toward individual ZIF-8 and ZnO phases and toward ZIF-8/ZnO composites was controlled by adjusting the ratio of metal salts to 2-methylimidazole. Subsequently, a series of derived (C and/or N)-doped ZnO nanoparticles was obtained by a two-step calcination process. The absorption kinetics and photocatalytic activity in methyl orange degradation under visible light were investigated. ZIF-8-derived ZnO could maintain their original morphology and displayed excellent photocatalytic activity 10 times higher than that of the original ZIF-8.

Original language	English
Article number	155219
Journal	Journal of Alloys and Compounds
Volume	838
DOIs	https://doi.org/10.1016/j.jallcom.2020.155219
Publication status	Published - 15 Oct 2020
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2020 Elsevier B.V.

Keywords

C, N co-doped
Organic dyes
Photocatalysis
Porous structure
ZIF-8/ZnO composites

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10.1016/j.jallcom.2020.155219

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title = "One-step synthesis of ZIF-8/ZnO composites based on coordination defect strategy and its derivatives for photocatalysis",

abstract = "A new approach was proposed for the preparation of metal–organic framework/metal oxide composites in one step using only metal salts. Here, crystalline rhombohedral dodecahedron ZIF-8, hollow ZnO microsphere, and ZIF-8/ZnO composites were obtained in different one-pot solvothermal processes where the growth toward individual ZIF-8 and ZnO phases and toward ZIF-8/ZnO composites was controlled by adjusting the ratio of metal salts to 2-methylimidazole. Subsequently, a series of derived (C and/or N)-doped ZnO nanoparticles was obtained by a two-step calcination process. The absorption kinetics and photocatalytic activity in methyl orange degradation under visible light were investigated. ZIF-8-derived ZnO could maintain their original morphology and displayed excellent photocatalytic activity 10 times higher than that of the original ZIF-8.",

keywords = "C, N co-doped, Organic dyes, Photocatalysis, Porous structure, ZIF-8/ZnO composites",

author = "Zheng, {Hang bo} and Di Wu and Wang, {Yuan li} and Liu, {Xiao pan} and Gao, {Peng zhao} and Wei Liu and Jin Wen and Rebrov, {Evgeny V.}",

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doi = "10.1016/j.jallcom.2020.155219",

language = "English",

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AU - Zheng, Hang bo

AU - Wu, Di

AU - Wang, Yuan li

AU - Liu, Xiao pan

AU - Gao, Peng zhao

AU - Liu, Wei

AU - Wen, Jin

AU - Rebrov, Evgeny V.

PY - 2020/10/15

Y1 - 2020/10/15

N2 - A new approach was proposed for the preparation of metal–organic framework/metal oxide composites in one step using only metal salts. Here, crystalline rhombohedral dodecahedron ZIF-8, hollow ZnO microsphere, and ZIF-8/ZnO composites were obtained in different one-pot solvothermal processes where the growth toward individual ZIF-8 and ZnO phases and toward ZIF-8/ZnO composites was controlled by adjusting the ratio of metal salts to 2-methylimidazole. Subsequently, a series of derived (C and/or N)-doped ZnO nanoparticles was obtained by a two-step calcination process. The absorption kinetics and photocatalytic activity in methyl orange degradation under visible light were investigated. ZIF-8-derived ZnO could maintain their original morphology and displayed excellent photocatalytic activity 10 times higher than that of the original ZIF-8.

AB - A new approach was proposed for the preparation of metal–organic framework/metal oxide composites in one step using only metal salts. Here, crystalline rhombohedral dodecahedron ZIF-8, hollow ZnO microsphere, and ZIF-8/ZnO composites were obtained in different one-pot solvothermal processes where the growth toward individual ZIF-8 and ZnO phases and toward ZIF-8/ZnO composites was controlled by adjusting the ratio of metal salts to 2-methylimidazole. Subsequently, a series of derived (C and/or N)-doped ZnO nanoparticles was obtained by a two-step calcination process. The absorption kinetics and photocatalytic activity in methyl orange degradation under visible light were investigated. ZIF-8-derived ZnO could maintain their original morphology and displayed excellent photocatalytic activity 10 times higher than that of the original ZIF-8.

KW - C, N co-doped

KW - Organic dyes

KW - Photocatalysis

KW - Porous structure

KW - ZIF-8/ZnO composites

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DO - 10.1016/j.jallcom.2020.155219

M3 - Article

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SN - 0925-8388

VL - 838

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 155219

ER -

One-step synthesis of ZIF-8/ZnO composites based on coordination defect strategy and its derivatives for photocatalysis

Abstract

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Keywords

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