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author:

Abraham, Daniel Arulraj (Abraham, Daniel Arulraj.) [1] | Rajan, Aswathy (Rajan, Aswathy.) [2] | Dhileepan, M. D. (Dhileepan, M. D..) [3] | Anpo, Masakazu (Anpo, Masakazu.) [4] | Neppolian, Bernaurdshaw (Neppolian, Bernaurdshaw.) [5]

Indexed by:

EI Scopus SCIE

Abstract:

We have developed a strategy to prevent the photo-corrosion of cadmium sulfide nanorods (CdSNRs) by coating them with cerium sulfide (Ce2S3) as co-catalyst and N-doped Graphene (NG) for a solar light-driven H2 production application. The uniform deposition and coating of Ce2S3 and NG over the CdSNRs were confirmed by both FESEM and HRTEM analyses. The incorporation of Ce2S3 and NG into CdSNRs not only increased its stability but also extended its absorption in visible and NIR regions. As a result, the prepared CdSNRs/Ce2S3 photocatalysts produced -16,181 & mu;mol h-1 g-1 of H2 under solar light irradiation, which was - 10 times higher than the pure CdSNRs. Interestingly, N atom doped graphene-supported CdSNRs/Ce2S3 photocatalysts has shown a paramount effect on the H2 production by 24 times higher compared to bare CdSNRs (35,946 & mu;mol h- 1g-1). In addition, the NG-CdSNRs/Ce2S3 photocatalysts exhibited high stability up to 5 continuous cycles. The high stability was achieved due to the covering of CdSNRs by Ce2S3 and NG, which may effectively prevent the leaching out of S2- ions from CdSNRs. On the other hand, the NG played a dual role by preventing the photocorrosion and also improving the charge carrier separation as evidenced by the PL, TRPL, and Impedance studies. The present work may open a new direction in designing a highly photostable metal sulfide photocatalyst for energy conversion applications in aqueous medium.

Keyword:

Hydrogen production N doped graphene Photocatalyst Solar light

Community:

  • [ 1 ] [Abraham, Daniel Arulraj]Cardiff Univ, Sch Engn, Cardiff, Wales
  • [ 2 ] [Rajan, Aswathy]SRM Inst Sci & Technol, Dept Chem, Chennai 603203, India
  • [ 3 ] [Neppolian, Bernaurdshaw]SRM Inst Sci & Technol, Dept Chem, Chennai 603203, India
  • [ 4 ] [Dhileepan, M. D.]SRM Inst Sci & Technol, Dept Phys & Nanotechnol, Chennai 603203, India
  • [ 5 ] [Anpo, Masakazu]Osaka Metropolitan Univ, Osaka Prefecture Univ, Dept Appl Chem, Grad Sch Engn, Sakai, Osaka 5998531, Japan
  • [ 6 ] [Anpo, Masakazu]Fuzhou Univ, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350116, Fujian, Peoples R China

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Source :

CATALYSIS TODAY

ISSN: 0920-5861

Year: 2023

Volume: 423

5 . 2

JCR@2023

5 . 2 0 0

JCR@2023

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

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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