Facile hydrothermal synthesis of rod-like Nb2O5/Nb2CTx composites for visible-light driven photocatalytic degradation of organic pollutants

Ce Cui; Ronghui Guo; Erhui Ren; Hongyan Xiao; Xiaoxu Lai; Qin Qin; Shouxiang Jiang; Hong Shen; Mi Zhou; Wenfeng Qin

doi:10.1016/j.envres.2020.110587

Facile hydrothermal synthesis of rod-like Nb₂O₅/Nb₂CT_x composites for visible-light driven photocatalytic degradation of organic pollutants

Ce Cui, Ronghui Guo, Erhui Ren, Hongyan Xiao, Xiaoxu Lai, Qin Qin, Shouxiang Jiang, Hong Shen, Mi Zhou, Wenfeng Qin

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

33 Citations (Scopus)

Abstract

The MXene-based transition metal oxide composite is a potential candidate for photocatalysts. Rod-like pseudohexagonal phase Nb₂O₅/Nb₂CT_x composites were synthesized by a simple hydrothermal oxidation of 2D layered Nb₂CT_x. The Nb₂O₅/Nb₂CT_x composites show superior photocatalytic activity for 98.5% of degradation of Rhodamine B (RhB) for 120 min and 91.2% of tetracycline hydrochloride (TC-HCl) for 180 min under visible light irradiation. The Schottky junction is formed between Nb₂O₅ nanorods and Nb₂CT_x and the photo-generated carriers are effectively separated, enhancing the photocatalytic activity of the Nb₂O₅/Nb₂CT_x. High photoactivity and cycle stability of Nb₂O₅/Nb₂CT_x composites indicate that hydrothermal oxidation of 2D layered Nb₂CT_x is an alternative to prepare efficient photocatalyst for degradation of organic pollutants.

Original language	English
Article number	110587
Journal	Environmental Research
Volume	193
DOIs	https://doi.org/10.1016/j.envres.2020.110587
Publication status	Published - Feb 2021

Keywords

Hydrothermal oxidation
NbCT
Organic pollutants
Photocatalytic degradation
Rod-like NbO/NbCT

ASJC Scopus subject areas

Biochemistry
Environmental Science(all)

More information

10.1016/j.envres.2020.110587

Cite this

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title = "Facile hydrothermal synthesis of rod-like Nb2O5/Nb2CTx composites for visible-light driven photocatalytic degradation of organic pollutants",

abstract = "The MXene-based transition metal oxide composite is a potential candidate for photocatalysts. Rod-like pseudohexagonal phase Nb2O5/Nb2CTx composites were synthesized by a simple hydrothermal oxidation of 2D layered Nb2CTx. The Nb2O5/Nb2CTx composites show superior photocatalytic activity for 98.5% of degradation of Rhodamine B (RhB) for 120 min and 91.2% of tetracycline hydrochloride (TC-HCl) for 180 min under visible light irradiation. The Schottky junction is formed between Nb2O5 nanorods and Nb2CTx and the photo-generated carriers are effectively separated, enhancing the photocatalytic activity of the Nb2O5/Nb2CTx. High photoactivity and cycle stability of Nb2O5/Nb2CTx composites indicate that hydrothermal oxidation of 2D layered Nb2CTx is an alternative to prepare efficient photocatalyst for degradation of organic pollutants.",

keywords = "Hydrothermal oxidation, NbCT, Organic pollutants, Photocatalytic degradation, Rod-like NbO/NbCT",

author = "Ce Cui and Ronghui Guo and Erhui Ren and Hongyan Xiao and Xiaoxu Lai and Qin Qin and Shouxiang Jiang and Hong Shen and Mi Zhou and Wenfeng Qin",

note = "Funding Information: This work was financially supported by The National Natural Science Foundation of China and The Civil Aviation Administration of China (NO. U1833118 ), Sichuan Science and Technology Program ( 2019YFG0244 ). Funding Information: This work was financially supported by The National Natural Science Foundation of China and The Civil Aviation Administration of China (NO. U1833118), Sichuan Science and Technology Program (2019YFG0244). Publisher Copyright: {\textcopyright} 2020 Elsevier Inc.",

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AU - Cui, Ce

AU - Guo, Ronghui

AU - Ren, Erhui

AU - Xiao, Hongyan

AU - Lai, Xiaoxu

AU - Qin, Qin

AU - Jiang, Shouxiang

AU - Shen, Hong

AU - Zhou, Mi

AU - Qin, Wenfeng

N1 - Funding Information: This work was financially supported by The National Natural Science Foundation of China and The Civil Aviation Administration of China (NO. U1833118 ), Sichuan Science and Technology Program ( 2019YFG0244 ). Funding Information: This work was financially supported by The National Natural Science Foundation of China and The Civil Aviation Administration of China (NO. U1833118), Sichuan Science and Technology Program (2019YFG0244). Publisher Copyright: © 2020 Elsevier Inc.

PY - 2021/2

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