TiO2@g-C3N4 core/shell spheres with uniform mesoporous structures for high performance visible-light photocatalytic application

Yi Xia; Lei Xu; Jinghui Peng; Jiazheng Han; Shenghui Guo; Libo Zhang; Zhaohui Han; Sridhar Komarneni

doi:10.1016/j.ceramint.2019.06.118

TiO₂@g-C₃N₄ core/shell spheres with uniform mesoporous structures for high performance visible-light photocatalytic application

Yi Xia
, Lei Xu
, Jinghui Peng
, Jiazheng Han
, Shenghui Guo
, Libo Zhang
, Zhaohui Han
, Sridhar Komarneni

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

36 Scopus citations

Abstract

Mesoporous g-C₃N₄ nanosheets (MCN) with uniform pore size were utilized to decorate mesoporous TiO₂ spheres (TSs) to form a core-shell heterojunction photocatalyst containing uniform mesopores. Moreover, the mesoporous g-C₃N₄ nanosheets served as shells for composites, in addition to playing a pivotal function for the regulation of the pore structure of the composite. The mesoporous TiO₂@g-C₃N₄ core/shell structure having a uniform pore size exhibited high surface area of ∼134 m²/g. This coupled material with improved porosity, not only led to increased visible-light absorption but also led to the enhanced charge generation/separation. In addition, it showed a lengthy cycling stability with highly active visible-light efficiency to degrade Rhodamine B (RhB) dye.

Original language	English (US)
Pages (from-to)	18844-18851
Number of pages	8
Journal	Ceramics International
Volume	45
Issue number	15
DOIs	https://doi.org/10.1016/j.ceramint.2019.06.118
State	Published - Oct 15 2019

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/j.ceramint.2019.06.118

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title = "TiO2@g-C3N4 core/shell spheres with uniform mesoporous structures for high performance visible-light photocatalytic application",

abstract = "Mesoporous g-C3N4 nanosheets (MCN) with uniform pore size were utilized to decorate mesoporous TiO2 spheres (TSs) to form a core-shell heterojunction photocatalyst containing uniform mesopores. Moreover, the mesoporous g-C3N4 nanosheets served as shells for composites, in addition to playing a pivotal function for the regulation of the pore structure of the composite. The mesoporous TiO2@g-C3N4 core/shell structure having a uniform pore size exhibited high surface area of ∼134 m2/g. This coupled material with improved porosity, not only led to increased visible-light absorption but also led to the enhanced charge generation/separation. In addition, it showed a lengthy cycling stability with highly active visible-light efficiency to degrade Rhodamine B (RhB) dye.",

author = "Yi Xia and Lei Xu and Jinghui Peng and Jiazheng Han and Shenghui Guo and Libo Zhang and Zhaohui Han and Sridhar Komarneni",

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T1 - TiO2@g-C3N4 core/shell spheres with uniform mesoporous structures for high performance visible-light photocatalytic application

AU - Xia, Yi

AU - Xu, Lei

AU - Peng, Jinghui

AU - Han, Jiazheng

AU - Guo, Shenghui

AU - Zhang, Libo

AU - Han, Zhaohui

AU - Komarneni, Sridhar

PY - 2019/10/15

Y1 - 2019/10/15

N2 - Mesoporous g-C3N4 nanosheets (MCN) with uniform pore size were utilized to decorate mesoporous TiO2 spheres (TSs) to form a core-shell heterojunction photocatalyst containing uniform mesopores. Moreover, the mesoporous g-C3N4 nanosheets served as shells for composites, in addition to playing a pivotal function for the regulation of the pore structure of the composite. The mesoporous TiO2@g-C3N4 core/shell structure having a uniform pore size exhibited high surface area of ∼134 m2/g. This coupled material with improved porosity, not only led to increased visible-light absorption but also led to the enhanced charge generation/separation. In addition, it showed a lengthy cycling stability with highly active visible-light efficiency to degrade Rhodamine B (RhB) dye.

AB - Mesoporous g-C3N4 nanosheets (MCN) with uniform pore size were utilized to decorate mesoporous TiO2 spheres (TSs) to form a core-shell heterojunction photocatalyst containing uniform mesopores. Moreover, the mesoporous g-C3N4 nanosheets served as shells for composites, in addition to playing a pivotal function for the regulation of the pore structure of the composite. The mesoporous TiO2@g-C3N4 core/shell structure having a uniform pore size exhibited high surface area of ∼134 m2/g. This coupled material with improved porosity, not only led to increased visible-light absorption but also led to the enhanced charge generation/separation. In addition, it showed a lengthy cycling stability with highly active visible-light efficiency to degrade Rhodamine B (RhB) dye.

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VL - 45

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JO - Ceramics International

JF - Ceramics International

IS - 15

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TiO₂@g-C₃N₄ core/shell spheres with uniform mesoporous structures for high performance visible-light photocatalytic application

Abstract

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