Chemical Engineering Journal, volume 396, pages 125347

Multifunctional 2D porous g-C3N4 nanosheets hybridized with 3D hierarchical TiO2 microflowers for selective dye adsorption, antibiotic degradation and CO2 reduction

Publication typeJournal Article
Publication date2020-09-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor15.1
ISSN13858947, 03009467
General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering
Environmental Chemistry
Abstract
Seeking effective strategy to design multifunctional materials for pollutant removal and solar fuel production is of great significance for solving the worldwide environment and energy problems. In this work, two-dimensional porous graphite-like carbon nitride (p-g-C3N4) nanosheets (NSs) decorated with three-dimensional (3D) hierachical TiO2 microflowers (MFs) were constructed through a facile acid hydrothermal route. 3D TiO2 MFs originating from K2Ti6O13 nanobelts were combined with p-g-C3N4 NSs via solid interfacial connections. By chemical exfoliation and etching, the surface area of g-C3N4 was significantly increased along with the formation of porous structures and C vacancies. Interestingly, the hydrothermally produced two-dimensional (2D) p-g-C3N4 NSs showed extraordinarily selective adsorption towards anionic methyl orange via strong electrostatic attraction. More importantly, such 3D/2D TiO2/p-g-C3N4 micro-nano heteroarchitectures exhibited remarkably improved visible-light photocatalytic properties for antibiotic degradation and CO2 reduction, mainly attributed to the enlarged surface areas and pore volumes, increased adsorption/active sites, improved light absorption and higher separation efficiency of photogenerated charge carriers. This one-pot synthesis method opens new possibilities for rational design of multifunctional g-C3N4-based photocatalysts towards environmental purification and solar energy conversion.

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Qiang W. et al. Multifunctional 2D porous g-C3N4 nanosheets hybridized with 3D hierarchical TiO2 microflowers for selective dye adsorption, antibiotic degradation and CO2 reduction // Chemical Engineering Journal. 2020. Vol. 396. p. 125347.
GOST all authors (up to 50) Copy
Qiang W., Zhang L., Guo Y., Shen M., Wang M., Li B., Shi J. Multifunctional 2D porous g-C3N4 nanosheets hybridized with 3D hierarchical TiO2 microflowers for selective dye adsorption, antibiotic degradation and CO2 reduction // Chemical Engineering Journal. 2020. Vol. 396. p. 125347.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1016/j.cej.2020.125347
UR - https://doi.org/10.1016/j.cej.2020.125347
TI - Multifunctional 2D porous g-C3N4 nanosheets hybridized with 3D hierarchical TiO2 microflowers for selective dye adsorption, antibiotic degradation and CO2 reduction
T2 - Chemical Engineering Journal
AU - Qiang, Wang
AU - Zhang, Ling-Xia
AU - Guo, Yangkun
AU - Shen, Meng
AU - Wang, Min
AU - Li, Bing
AU - Shi, Jianlin
PY - 2020
DA - 2020/09/01 00:00:00
PB - Elsevier
SP - 125347
VL - 396
SN - 1385-8947
SN - 0300-9467
ER -
BibTex
Cite this
BibTex Copy
@article{2020_Qiang,
author = {Wang Qiang and Ling-Xia Zhang and Yangkun Guo and Meng Shen and Min Wang and Bing Li and Jianlin Shi},
title = {Multifunctional 2D porous g-C3N4 nanosheets hybridized with 3D hierarchical TiO2 microflowers for selective dye adsorption, antibiotic degradation and CO2 reduction},
journal = {Chemical Engineering Journal},
year = {2020},
volume = {396},
publisher = {Elsevier},
month = {sep},
url = {https://doi.org/10.1016/j.cej.2020.125347},
pages = {125347},
doi = {10.1016/j.cej.2020.125347}
}
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