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Published in: Cellulose 18/2019

24-09-2019 | Original Research

Template in situ synthesis of flower-like BiOBr/microcrystalline cellulose composites with highly visible-light photocatalytic activity

Authors: Weiming Zhou, Shichang Sun, Yifan Jiang, Mingxin Zhang, Ibrahim Lawan, Gerard Franklyn Fernando, Liwei Wang, Zhanhui Yuan

Published in: Cellulose | Issue 18/2019

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Abstract

To enhance the visible light photocatalytic activity for the degradation of organic pollutants, this study focused on the synthesis of flower-like BiOBr/microcrystalline cellulose inorganic–organic hybrid photocatalysts by one-step facile method at room temperature and used microcrystalline cellulose as template and support. Findings reveal that the band gap energy (Eg), the valance band (EVB) and conduction band (ECB) edge potential of the hybrid photocatalysts are 2.71 eV, 3.00 eV and 0.29 eV, respectively. Also, the synthesized catalyst degraded Rhodamine B (RhB) solution under visible light and the active species was found to be mainly photogenerated holes. Moreover, the photocurrent density of the synthesized hybrid photocatalyst is higher than the pure BiOBr under visible light. The average pore diameter of the resulting hybrid photocatalyst stood at 43.72 nm. Overall, a novel flower-like hybrid photocatalyst has been synthesized and it has exhibited an effective activity in RhB dye degradation with the multiple reflections under visible light.

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Appendix
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Literature
go back to reference Huang HW, Han X, Li XW, Wang SC, Chu PK, Zhang YH (2015a) Fabrication of multiple heterojunctions with tunable visible-light-active photocatalytic reactivity in BiOBr–BiOI full-range composites based on microstructure modulation and band structures. ACS Appl Mater Interfaces 7:482–492. https://doi.org/10.1021/am5065409 CrossRefPubMed Huang HW, Han X, Li XW, Wang SC, Chu PK, Zhang YH (2015a) Fabrication of multiple heterojunctions with tunable visible-light-active photocatalytic reactivity in BiOBr–BiOI full-range composites based on microstructure modulation and band structures. ACS Appl Mater Interfaces 7:482–492. https://​doi.​org/​10.​1021/​am5065409 CrossRefPubMed
go back to reference Patnaik S, Swain G, Parida KM (2018) Highly efficient charge transfer through a double Z-scheme mechanism by a Cu-promoted MoO3/g-C3N4 hybrid nanocomposite with superior electrochemical and photocatalytic performance. Nanoscale 13:5950–5964. https://doi.org/10.1039/c7nr09049h CrossRef Patnaik S, Swain G, Parida KM (2018) Highly efficient charge transfer through a double Z-scheme mechanism by a Cu-promoted MoO3/g-C3N4 hybrid nanocomposite with superior electrochemical and photocatalytic performance. Nanoscale 13:5950–5964. https://​doi.​org/​10.​1039/​c7nr09049h CrossRef
Metadata
Title
Template in situ synthesis of flower-like BiOBr/microcrystalline cellulose composites with highly visible-light photocatalytic activity
Authors
Weiming Zhou
Shichang Sun
Yifan Jiang
Mingxin Zhang
Ibrahim Lawan
Gerard Franklyn Fernando
Liwei Wang
Zhanhui Yuan
Publication date
24-09-2019
Publisher
Springer Netherlands
Published in
Cellulose / Issue 18/2019
Print ISSN: 0969-0239
Electronic ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-019-02722-4

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