Enhanced photodegradation performance of Rhodamine B with g-C3N4 modified by carbon nanotubes

Guohong Liu; Menglong Liao; Zhaohan Zhang; Hongyue Wang; Dahong Chen; Yujie Feng

doi:10.1016/j.seppur.2020.116618

Enhanced photodegradation performance of Rhodamine B with g-C₃N₄ modified by carbon nanotubes

Guohong Liu
, Menglong Liao
, Zhaohan Zhang
, Hongyue Wang
, Dahong Chen
, Yujie Feng^*

^*Corresponding author for this work

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

93 Scopus citations

Abstract

Graphitic carbon nitride (g-C₃N₄) is a potential photocatalyst due to its narrow bandgap, great stability and low cost. In the present study, g-C₃N₄ modified with carbon nanotubes (CNTs) was composited by a simple water bath method. The optimal content of CNTs was proved to be 1 wt% in the composite, which showed an enhanced RhB photodegradation efficient. The degradation efficiency for Rhodamine B (RhB) by g-C₃N₄/CNTs-1 was 98.1% under visible light irradiation, which was 16.2% higher than that by pure g-C₃N₄. The photodegradation performance improved significantly due to the modification of CNTs, the present of CNTs in the composite was advantageous to the visible light absorption and photogenerated electron-hole separation. The prepared g-C₃N₄/CNTs composites with higher photocatalytic ability might provide a potential catalyst for wastewater purification.

Original language	English
Article number	116618
Journal	Separation and Purification Technology
Volume	244
DOIs	https://doi.org/10.1016/j.seppur.2020.116618
State	Published - 1 Aug 2020
Externally published	Yes

Keywords

Active species
Electron transfer
Photodegradation performance
Rhodamine B
g-CN/CNTs photocatalysts

Access to Document

10.1016/j.seppur.2020.116618

Cite this

@article{caeb636b11844f7ea282870cfdae0807,

title = "Enhanced photodegradation performance of Rhodamine B with g-C3N4 modified by carbon nanotubes",

abstract = "Graphitic carbon nitride (g-C3N4) is a potential photocatalyst due to its narrow bandgap, great stability and low cost. In the present study, g-C3N4 modified with carbon nanotubes (CNTs) was composited by a simple water bath method. The optimal content of CNTs was proved to be 1 wt\% in the composite, which showed an enhanced RhB photodegradation efficient. The degradation efficiency for Rhodamine B (RhB) by g-C3N4/CNTs-1 was 98.1\% under visible light irradiation, which was 16.2\% higher than that by pure g-C3N4. The photodegradation performance improved significantly due to the modification of CNTs, the present of CNTs in the composite was advantageous to the visible light absorption and photogenerated electron-hole separation. The prepared g-C3N4/CNTs composites with higher photocatalytic ability might provide a potential catalyst for wastewater purification.",

keywords = "Active species, Electron transfer, Photodegradation performance, Rhodamine B, g-CN/CNTs photocatalysts",

author = "Guohong Liu and Menglong Liao and Zhaohan Zhang and Hongyue Wang and Dahong Chen and Yujie Feng",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2020",

month = aug,

day = "1",

doi = "10.1016/j.seppur.2020.116618",

language = "英语",

volume = "244",

journal = "Separation and Purification Technology",

issn = "1383-5866",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Enhanced photodegradation performance of Rhodamine B with g-C3N4 modified by carbon nanotubes

AU - Liu, Guohong

AU - Liao, Menglong

AU - Zhang, Zhaohan

AU - Wang, Hongyue

AU - Chen, Dahong

AU - Feng, Yujie

PY - 2020/8/1

Y1 - 2020/8/1

N2 - Graphitic carbon nitride (g-C3N4) is a potential photocatalyst due to its narrow bandgap, great stability and low cost. In the present study, g-C3N4 modified with carbon nanotubes (CNTs) was composited by a simple water bath method. The optimal content of CNTs was proved to be 1 wt% in the composite, which showed an enhanced RhB photodegradation efficient. The degradation efficiency for Rhodamine B (RhB) by g-C3N4/CNTs-1 was 98.1% under visible light irradiation, which was 16.2% higher than that by pure g-C3N4. The photodegradation performance improved significantly due to the modification of CNTs, the present of CNTs in the composite was advantageous to the visible light absorption and photogenerated electron-hole separation. The prepared g-C3N4/CNTs composites with higher photocatalytic ability might provide a potential catalyst for wastewater purification.

AB - Graphitic carbon nitride (g-C3N4) is a potential photocatalyst due to its narrow bandgap, great stability and low cost. In the present study, g-C3N4 modified with carbon nanotubes (CNTs) was composited by a simple water bath method. The optimal content of CNTs was proved to be 1 wt% in the composite, which showed an enhanced RhB photodegradation efficient. The degradation efficiency for Rhodamine B (RhB) by g-C3N4/CNTs-1 was 98.1% under visible light irradiation, which was 16.2% higher than that by pure g-C3N4. The photodegradation performance improved significantly due to the modification of CNTs, the present of CNTs in the composite was advantageous to the visible light absorption and photogenerated electron-hole separation. The prepared g-C3N4/CNTs composites with higher photocatalytic ability might provide a potential catalyst for wastewater purification.

KW - Active species

KW - Electron transfer

KW - Photodegradation performance

KW - Rhodamine B

KW - g-CN/CNTs photocatalysts

UR - https://www.scopus.com/pages/publications/85080075374

U2 - 10.1016/j.seppur.2020.116618

DO - 10.1016/j.seppur.2020.116618

M3 - 文章

AN - SCOPUS:85080075374

SN - 1383-5866

VL - 244

JO - Separation and Purification Technology

JF - Separation and Purification Technology

M1 - 116618

ER -

Enhanced photodegradation performance of Rhodamine B with g-C₃N₄ modified by carbon nanotubes

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this