Study on preparation, photocatalytic performance and degradation mechanism of polymeric carbon nitride/Pt/nano-spherical MoS2 composite - Details

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Abstract：

In　this　paper,　a　visible　light-driven　polymeric　carbon　nitride　(PCN)/(Pt)/nano-spherical　MoS2　photocatalysts　was　prepared　using　a　self-assembly　method.　The　structure　of　photocatalysts　was　explored　by　FT-IR,　XPS,　XRD,　BET,　SEM　and　TEM.　Meanwhile,　the　energy　band　structure　and　electron　hole　separation　efficiency　were　also　analyzed　by　UV–Vis　and　PL　spectra.　In　addition,　the　photocatalytic　performance　of　photocatalysts　were　tested　by　photocatalytic　degradation　of　Rhodamine　B　and　photocatalytic　hydrogen　evolution.　The　results　showed　that　PCN/2.0%MoS2　showed　the　best　photocatalytic　performance,　and　the　degradation　rate　of　Rhodamine　B　could　reach　98.39%　within　150　min.　Besides,　the　introduction　of　Pt　nanoparticles　significantly　improved　the　photocatalytic　activity.　The　degradation　rate　of　Rhodamine　B　reached　100%　within　150　min,　and　the　rate　of　photocatalytic　hydrogen　production　of　PCN/Pt/MoS2　system　was　increased　by　21.3%　over　the　PCN/2.0%MoS2　system.　The　separation　mechanism　of　electron　and　hole　is　Z-scheme　mechanism　and　the　main　active　substances　for　photocatalytic　degradation　were　·O2−　and　h+.　©　2022

Keyword：

Degradation mechanism; Hydrogen production; PCN/MoS2; PCN/Pt/MoS2; Photocatalytic degradation

Community：

[ 1 ] [Fu, W.]Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, China
[ 2 ] [Zhao, Y.]Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, China
[ 3 ] [Wang, H.]Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, China
[ 4 ] [Chen, X.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, China
[ 5 ] [Liu, K.]Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, China
[ 6 ] [Zhang, K.]Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, China
[ 7 ] [Wei, Q.]Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
[ 8 ] [Wang, B.]Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, China

Reprint 's Address：

[Wang, H.]Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, China; ; Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, China; 电子邮件: BingzhuWang@Yeah.net

Email：

whwdbdx@neuq.edu.cn Wang, B.

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Source ：

Journal of Physics and Chemistry of Solids

ISSN： 0022-3697

Year： 2022

Volume： 166

4 . 0

JCR@2022

4 . 3 0 0

JCR@2023

ESI HC Threshold：55

JCR Journal Grade：2

CAS Journal Grade：3

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WoS CC Cited Count：

SCOPUS Cited Count：

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 2

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