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

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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

Keyword：

Carbon nitride Hydrogen production Monomers Photocatalytic activity Rate constants Rhodium compounds Semiconductor doping

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[ 1 ] [Pan, Feng]College of Mechanical Engineering, Xijing University, Xi'an; 710123, China
[ 2 ] [Sohail, Muhammad]Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou; 313001, China
[ 3 ] [Taha, T.A.]Physics department, College of Science, Jouf University, P.O. Box: 2014, Sakaka, Saudi Arabia
[ 4 ] [Taha, T.A.]Physics and Engineering Mathematics Department, Faculty of Electronic Engineering, Menoufia University, Menouf; 32952, Egypt
[ 5 ] [Al-Sehemi, Abdullah G.]Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha; 61413, Saudi Arabia
[ 6 ] [Al-Sehemi, Abdullah G.]Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha; 61413, Saudi Arabia
[ 7 ] [Ullah, Sami]Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha; 61413, Saudi Arabia
[ 8 ] [Ullah, Sami]Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha; 61413, Saudi Arabia
[ 9 ] [AlSalem, Huda Salem]Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh; 11671, Saudi Arabia
[ 10 ] [Mersal, Gaber AM]Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif; 21944, Saudi Arabia
[ 11 ] [Ibrahim, Mohamed M.]Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif; 21944, Saudi Arabia
[ 12 ] [Alenad, Asma M.]Chemistry Department, College of Science, Jouf University, P.O. Box: 2014, Sakaka, Saudi Arabia
[ 13 ] [Al-Hartomy, Omar A.]Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah; 21589, Saudi Arabia
[ 14 ] [Amin, Mohammed A.]Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif; 21944, Saudi Arabia
[ 15 ] [Ajmal, Zeeshan]School of chemistry and chemical engineering, Northwestern Polytechnical University, Xian, China
[ 16 ] [Palamanit, Arkom]Energy Technology Program, Department of Specialized Engineering, Faculty of Engineering, Prince of Songkla University, 15 Karnjanavanich Rd., Songkhla, Hat Yai; 90110, Thailand
[ 17 ] [Hayat, Asif]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou; 350116, China
[ 18 ] [Zada, Amir]Department of Chemistry, Abdul Wali Khan University, Mardan; 23200, Pakistan
[ 19 ] [Nawawi, W.I.]Faculty of Applied Sciences, Universiti Teknologi MARA, Cawangan Perlis, Arau Perlis; 02600, Malaysia

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Source ：

Materials Research Bulletin

ISSN： 0025-5408

Year： 2022

Volume： 152

5 . 4

JCR@2022

5 . 3 0 0

JCR@2023

ESI HC Threshold：91

JCR Journal Grade：2

CAS Journal Grade：3

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 29

ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 0

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