Solar Energy, volume 205, pages 465-473

Preparation of hierarchical g-C3N4@TiO2 hollow spheres for enhanced visible-light induced catalytic CO2 reduction

Ali Banitalebi Dehkordi
Abolfazl Ziarati
Jahan B. Ghasemi
Alireza Badiei
Publication typeJournal Article
Publication date2020-07-01
Journal: Solar Energy
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor6.7
ISSN0038092X
General Materials Science
Renewable Energy, Sustainability and the Environment
Abstract
Hierarchical g-C3N4@TiO2 hollow sphere with excellent photocatalytic activity for CO2 reduction under the visible light was prepared by assembling TiO2 shell onto the surface of hollow carbon nitride sphere (HCNS). This engineered photocatalyst was prepared by a two-step process: at first, the process of nanocasting was done by a templating method, followed by the kinetically-controlled coating technique. Specifically, mesoporous silica sphere and cyanamide were used as sacrificial template and precursor of carbon nitride, respectively, for the synthesis of hollow carbon nitride sphere which was further modified with titanium dioxide nanosheets. The remarkable photocatalytic activity of as-prepared nanocomposite could be attributed to its special structure, providing properties such as light-harvesting, multiple light reflection and enhanced active site. Owing to the synergistic effect between g-C3N4 and TiO2; the light absorption region has been enhanced, leading to the improvement of photocatalytic performance. The obtained CO2 photoreduction efficiency of HCNS@TiO2 nanostructure is 11.3 μmol/gcat.h, which is about 5 and 10 times higher than the corresponding values for pristine g-C3N4 and p-25, respectively.

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Banitalebi Dehkordi A. et al. Preparation of hierarchical g-C3N4@TiO2 hollow spheres for enhanced visible-light induced catalytic CO2 reduction // Solar Energy. 2020. Vol. 205. pp. 465-473.
GOST all authors (up to 50) Copy
Banitalebi Dehkordi A., Ziarati A., Ghasemi J. B., Badiei A. Preparation of hierarchical g-C3N4@TiO2 hollow spheres for enhanced visible-light induced catalytic CO2 reduction // Solar Energy. 2020. Vol. 205. pp. 465-473.
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RIS Copy
TY - JOUR
DO - 10.1016/j.solener.2020.05.071
UR - https://doi.org/10.1016/j.solener.2020.05.071
TI - Preparation of hierarchical g-C3N4@TiO2 hollow spheres for enhanced visible-light induced catalytic CO2 reduction
T2 - Solar Energy
AU - Banitalebi Dehkordi, Ali
AU - Ziarati, Abolfazl
AU - Ghasemi, Jahan B.
AU - Badiei, Alireza
PY - 2020
DA - 2020/07/01 00:00:00
PB - Elsevier
SP - 465-473
VL - 205
SN - 0038-092X
ER -
BibTex
Cite this
BibTex Copy
@article{2020_Banitalebi Dehkordi,
author = {Ali Banitalebi Dehkordi and Abolfazl Ziarati and Jahan B. Ghasemi and Alireza Badiei},
title = {Preparation of hierarchical g-C3N4@TiO2 hollow spheres for enhanced visible-light induced catalytic CO2 reduction},
journal = {Solar Energy},
year = {2020},
volume = {205},
publisher = {Elsevier},
month = {jul},
url = {https://doi.org/10.1016/j.solener.2020.05.071},
pages = {465--473},
doi = {10.1016/j.solener.2020.05.071}
}
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