Synthesis and Visible-light Photocatalytic Performance of C-doped Nb2O5 with High Surface Area

doi:10.1007/s40242-018-7260-9

高等学校化学研究 ›› 2018, Vol. 34 ›› Issue (2): 274-278.doi: 10.1007/s40242-018-7260-9

Synthesis and Visible-light Photocatalytic Performance of C-doped Nb₂O₅ with High Surface Area

DING Shuang¹, WANG Runwei², ZHANG Panpan¹, KANG Bonan¹, ZHANG Daliang¹, ZHANG Zongtao², QIU Shilun²

1. Stage Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering,
2. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China

收稿日期:2017-08-07 修回日期:2017-11-08 出版日期:2018-04-01 发布日期:2017-12-04
通讯作者: KANG Bonan,E-mail:kangbn@jlu.edu.cn E-mail:kangbn@jlu.edu.cn
基金资助:
Supported by the National Natural Science Foundation of China(No.21390394) and the National Basic Research Program of China(Nos. 2012CB821700, 2011CB808703).

Synthesis and Visible-light Photocatalytic Performance of C-doped Nb₂O₅ with High Surface Area

DING Shuang¹, WANG Runwei², ZHANG Panpan¹, KANG Bonan¹, ZHANG Daliang¹, ZHANG Zongtao², QIU Shilun²

1. Stage Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering,
2. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China

Received:2017-08-07 Revised:2017-11-08 Online:2018-04-01 Published:2017-12-04
Contact: KANG Bonan,E-mail:kangbn@jlu.edu.cn E-mail:kangbn@jlu.edu.cn
Supported by:
Supported by the National Natural Science Foundation of China(No.21390394) and the National Basic Research Program of China(Nos. 2012CB821700, 2011CB808703).

摘要/Abstract

摘要： C-doped Nb₂O₅ with abundant mesopores has been successfully synthesized through a facile solvothermal synthetic strategy followed by calcination treatment. The resulting C-doped Nb₂O₅ displayed the highest BET surface area(345 m²/g) and large mesopore size(ca. 4.2 nm), capable of offering more accessible active sites as well as faster mass transfer for catalysis. Besides, the doping of C(2.21%, molar fraction) at the O sites in Nb₂O₅ lattice greatly enhanced visible-light response by lowering the band gap, thereby making the material a photocatalyst under visible-light irradiation. Typically, the C-doped Nb₂O₅ exhibited a high H₂ evolution rate of ca. 39.10 μmol·g^-1·h^-1 and also degraded RhB dye completely after 30 min of visible light exposure, which turned out to be much better than Degussa P25 and pure Nb₂O₅ catalysts.

关键词: C-Doped, Highest BET surface area, Degradation RhB, H₂ evolution

Abstract: C-doped Nb₂O₅ with abundant mesopores has been successfully synthesized through a facile solvothermal synthetic strategy followed by calcination treatment. The resulting C-doped Nb₂O₅ displayed the highest BET surface area(345 m²/g) and large mesopore size(ca. 4.2 nm), capable of offering more accessible active sites as well as faster mass transfer for catalysis. Besides, the doping of C(2.21%, molar fraction) at the O sites in Nb₂O₅ lattice greatly enhanced visible-light response by lowering the band gap, thereby making the material a photocatalyst under visible-light irradiation. Typically, the C-doped Nb₂O₅ exhibited a high H₂ evolution rate of ca. 39.10 μmol·g^-1·h^-1 and also degraded RhB dye completely after 30 min of visible light exposure, which turned out to be much better than Degussa P25 and pure Nb₂O₅ catalysts.

Key words: C-Doped, Highest BET surface area, Degradation RhB, H₂ evolution

DING Shuang, WANG Runwei, ZHANG Panpan, KANG Bonan, ZHANG Daliang, ZHANG Zongtao, QIU Shilun. Synthesis and Visible-light Photocatalytic Performance of C-doped Nb₂O₅ with High Surface Area[J]. 高等学校化学研究, 2018, 34(2): 274-278.

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Synthesis and Visible-light Photocatalytic Performance of C-doped Nb₂O₅ with High Surface Area

Synthesis and Visible-light Photocatalytic Performance of C-doped Nb₂O₅ with High Surface Area

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