A facile molecular aggregation of isoquinoline based g-C3N4 for high photocatalytic performance under visible light illumination

Graphitic carbon nitride, g-C3N4 (CN) is regarded as an excellent metal-free semiconductor known for its potential solar fuel generation and pollutant degradation. In this study, a carbon richer substance, (5,8-dibromoisoquinoline (BQ)) was used to feed its catalytic function through conventional co...

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Published in:Materials Research Bulletin
Main Author: Pan F.; Sohail M.; Taha T.A.; Al-Sehemi A.G.; Ullah S.; AlSalem H.S.; Mersal G.A.; Ibrahim M.M.; Alenad A.M.; Al-Hartomy O.A.; Amin M.A.; Ajmal Z.; Palamanit A.; Hayat A.; Zada A.; Nawawi W.I.
Format: Article
Language:English
Published: Elsevier Ltd 2022
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85129322721&doi=10.1016%2fj.materresbull.2022.111865&partnerID=40&md5=769cef2330caec1bf480cd2fcdda0148
id 2-s2.0-85129322721
spelling 2-s2.0-85129322721
Pan F.; Sohail M.; Taha T.A.; Al-Sehemi A.G.; Ullah S.; AlSalem H.S.; Mersal G.A.; Ibrahim M.M.; Alenad A.M.; Al-Hartomy O.A.; Amin M.A.; Ajmal Z.; Palamanit A.; Hayat A.; Zada A.; Nawawi W.I.
A facile molecular aggregation of isoquinoline based g-C3N4 for high photocatalytic performance under visible light illumination
2022
Materials Research Bulletin
152

10.1016/j.materresbull.2022.111865
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85129322721&doi=10.1016%2fj.materresbull.2022.111865&partnerID=40&md5=769cef2330caec1bf480cd2fcdda0148
Graphitic carbon nitride, g-C3N4 (CN) is regarded as an excellent metal-free semiconductor known for its potential solar fuel generation and pollutant degradation. In this study, a carbon richer substance, (5,8-dibromoisoquinoline (BQ)) was used to feed its catalytic function through conventional copolymerization (molecular doping) process at 550°C under a nitrogen atmosphere. The incorporation of BQ monomer in the triazine oligomers of CN in turn enhanced the specific surface area, thereby, improving the lifespan of photoexcited charge carriers, decreasing the charge recombination rate, energy bandgap, and altering the optoelectronic characteristics of CN. On average, the rate of hydrogen (H2) production over-optimized 10BQ/CN was 710.1 µmol/h much superior and 10 times higher than that of pure CN (71.9 µmol/h). Particularly, the kinetics of the photocatalytic degradation of RhB over 10BQ/CN followed pseudo-order kinetics and the rate constant was three times larger than pure CN. Our results illustrate the crucial importance of conjugated monomers in improving photocatalysis process for future energy demand by providing key steps towards sustainable energy production. © 2022 Elsevier Ltd
Elsevier Ltd
255408
English
Article

author Pan F.; Sohail M.; Taha T.A.; Al-Sehemi A.G.; Ullah S.; AlSalem H.S.; Mersal G.A.; Ibrahim M.M.; Alenad A.M.; Al-Hartomy O.A.; Amin M.A.; Ajmal Z.; Palamanit A.; Hayat A.; Zada A.; Nawawi W.I.
spellingShingle Pan F.; Sohail M.; Taha T.A.; Al-Sehemi A.G.; Ullah S.; AlSalem H.S.; Mersal G.A.; Ibrahim M.M.; Alenad A.M.; Al-Hartomy O.A.; Amin M.A.; Ajmal Z.; Palamanit A.; Hayat A.; Zada A.; Nawawi W.I.
A facile molecular aggregation of isoquinoline based g-C3N4 for high photocatalytic performance under visible light illumination
author_facet Pan F.; Sohail M.; Taha T.A.; Al-Sehemi A.G.; Ullah S.; AlSalem H.S.; Mersal G.A.; Ibrahim M.M.; Alenad A.M.; Al-Hartomy O.A.; Amin M.A.; Ajmal Z.; Palamanit A.; Hayat A.; Zada A.; Nawawi W.I.
author_sort Pan F.; Sohail M.; Taha T.A.; Al-Sehemi A.G.; Ullah S.; AlSalem H.S.; Mersal G.A.; Ibrahim M.M.; Alenad A.M.; Al-Hartomy O.A.; Amin M.A.; Ajmal Z.; Palamanit A.; Hayat A.; Zada A.; Nawawi W.I.
title A facile molecular aggregation of isoquinoline based g-C3N4 for high photocatalytic performance under visible light illumination
title_short A facile molecular aggregation of isoquinoline based g-C3N4 for high photocatalytic performance under visible light illumination
title_full A facile molecular aggregation of isoquinoline based g-C3N4 for high photocatalytic performance under visible light illumination
title_fullStr A facile molecular aggregation of isoquinoline based g-C3N4 for high photocatalytic performance under visible light illumination
title_full_unstemmed A facile molecular aggregation of isoquinoline based g-C3N4 for high photocatalytic performance under visible light illumination
title_sort A facile molecular aggregation of isoquinoline based g-C3N4 for high photocatalytic performance under visible light illumination
publishDate 2022
container_title Materials Research Bulletin
container_volume 152
container_issue
doi_str_mv 10.1016/j.materresbull.2022.111865
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85129322721&doi=10.1016%2fj.materresbull.2022.111865&partnerID=40&md5=769cef2330caec1bf480cd2fcdda0148
description Graphitic carbon nitride, g-C3N4 (CN) is regarded as an excellent metal-free semiconductor known for its potential solar fuel generation and pollutant degradation. In this study, a carbon richer substance, (5,8-dibromoisoquinoline (BQ)) was used to feed its catalytic function through conventional copolymerization (molecular doping) process at 550°C under a nitrogen atmosphere. The incorporation of BQ monomer in the triazine oligomers of CN in turn enhanced the specific surface area, thereby, improving the lifespan of photoexcited charge carriers, decreasing the charge recombination rate, energy bandgap, and altering the optoelectronic characteristics of CN. On average, the rate of hydrogen (H2) production over-optimized 10BQ/CN was 710.1 µmol/h much superior and 10 times higher than that of pure CN (71.9 µmol/h). Particularly, the kinetics of the photocatalytic degradation of RhB over 10BQ/CN followed pseudo-order kinetics and the rate constant was three times larger than pure CN. Our results illustrate the crucial importance of conjugated monomers in improving photocatalysis process for future energy demand by providing key steps towards sustainable energy production. © 2022 Elsevier Ltd
publisher Elsevier Ltd
issn 255408
language English
format Article
accesstype
record_format scopus
collection Scopus
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