A Z-scheme TiO2 quantum dots fragment-Bi12TiO20 composites for enhancing photocatalytic activity

Tao Wang; Xiqing Liu; Qiuyue Men; Changchang Ma; Yang Liu; Pengwei Huo; Yongsheng Yan

doi:10.1016/j.renene.2019.09.025

A Z-scheme TiO₂ quantum dots fragment-Bi₁₂TiO₂₀ composites for enhancing photocatalytic activity

Tao Wang, Xiqing Liu, Qiuyue Men, Changchang Ma, Yang Liu, Pengwei Huo, Yongsheng Yan

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

27 Scopus citations

Abstract

To completely utilize the high redox ability of photo-induced charge carriers. Here, a Z-scheme photocatalyst of TiO₂ QDs/Bi₁₂TiO₂₀ (TBT) composites with TiO₂ QDs fragment attached to the surface of Bi₁₂TiO₂₀ (BTO) was prepared and the photocatalytic activity was evaluated by degradation of gatifloxacin (GF). The optimal photocatalytic performance of TBT displayed 3 times higher than bare BTO. The improved photocatalytic performance was ascribed to the effective separation of the charge carriers between TiO₂ QDs and BTO via the direct Z-scheme heterojunction. Such a strategy for the construction of Z-scheme TBT composites for removal of organic pollutants, proving new insights into design photocatalyst.

Original language	English
Pages (from-to)	856-863
Number of pages	8
Journal	Renewable Energy
Volume	147
DOIs	https://doi.org/10.1016/j.renene.2019.09.025
State	Published - Mar 2020
Externally published	Yes

Keywords

BiTiO
Mechanism
TiO quantum dots fragment
Z-scheme

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.renene.2019.09.025

Cite this

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title = "A Z-scheme TiO2 quantum dots fragment-Bi12TiO20 composites for enhancing photocatalytic activity",

abstract = "To completely utilize the high redox ability of photo-induced charge carriers. Here, a Z-scheme photocatalyst of TiO2 QDs/Bi12TiO20 (TBT) composites with TiO2 QDs fragment attached to the surface of Bi12TiO20 (BTO) was prepared and the photocatalytic activity was evaluated by degradation of gatifloxacin (GF). The optimal photocatalytic performance of TBT displayed 3 times higher than bare BTO. The improved photocatalytic performance was ascribed to the effective separation of the charge carriers between TiO2 QDs and BTO via the direct Z-scheme heterojunction. Such a strategy for the construction of Z-scheme TBT composites for removal of organic pollutants, proving new insights into design photocatalyst.",

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author = "Tao Wang and Xiqing Liu and Qiuyue Men and Changchang Ma and Yang Liu and Pengwei Huo and Yongsheng Yan",

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doi = "10.1016/j.renene.2019.09.025",

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T1 - A Z-scheme TiO2 quantum dots fragment-Bi12TiO20 composites for enhancing photocatalytic activity

AU - Wang, Tao

AU - Liu, Xiqing

AU - Men, Qiuyue

AU - Ma, Changchang

AU - Liu, Yang

AU - Huo, Pengwei

AU - Yan, Yongsheng

PY - 2020/3

Y1 - 2020/3

N2 - To completely utilize the high redox ability of photo-induced charge carriers. Here, a Z-scheme photocatalyst of TiO2 QDs/Bi12TiO20 (TBT) composites with TiO2 QDs fragment attached to the surface of Bi12TiO20 (BTO) was prepared and the photocatalytic activity was evaluated by degradation of gatifloxacin (GF). The optimal photocatalytic performance of TBT displayed 3 times higher than bare BTO. The improved photocatalytic performance was ascribed to the effective separation of the charge carriers between TiO2 QDs and BTO via the direct Z-scheme heterojunction. Such a strategy for the construction of Z-scheme TBT composites for removal of organic pollutants, proving new insights into design photocatalyst.

AB - To completely utilize the high redox ability of photo-induced charge carriers. Here, a Z-scheme photocatalyst of TiO2 QDs/Bi12TiO20 (TBT) composites with TiO2 QDs fragment attached to the surface of Bi12TiO20 (BTO) was prepared and the photocatalytic activity was evaluated by degradation of gatifloxacin (GF). The optimal photocatalytic performance of TBT displayed 3 times higher than bare BTO. The improved photocatalytic performance was ascribed to the effective separation of the charge carriers between TiO2 QDs and BTO via the direct Z-scheme heterojunction. Such a strategy for the construction of Z-scheme TBT composites for removal of organic pollutants, proving new insights into design photocatalyst.

KW - BiTiO

KW - Mechanism

KW - TiO quantum dots fragment

KW - Z-scheme

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U2 - 10.1016/j.renene.2019.09.025

DO - 10.1016/j.renene.2019.09.025

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