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author:

Huang, H. (Huang, H..) [1] | Xu, B. (Xu, B..) [2] | Tan, Z. (Tan, Z..) [3] | Jiang, Q. (Jiang, Q..) [4] | Fang, S. (Fang, S..) [5] | Li, L. (Li, L..) [6] | Bi, J. (Bi, J..) [7] | Wu, L. (Wu, L..) [8]

Indexed by:

Scopus

Abstract:

CdS quantum dots (QDs) are excellent visible-light-driven photocatalysts due to their unique small size (<10 nm), suitable band energy structure, and short charge transportation length. Unfortunately, the easy aggregation of CdS QDs to form larger particles results in a higher recombination rate for photoinduced electron-hole pairs, which deteriorates the photocatalytic activity. Here, we report in situ growth of CdS QDs with high dispersion and stability on covalent triazine-based frameworks (CTFs) via a facile photoreduction method. The photocatalytic H2 evolution activity of CdS QD-loaded CTFs is effectively enhanced to approximately 55 and 4 times than that of pristine CTFs and bulk CdS, respectively. This enhanced photocatalytic performance is mainly ascribed to the higher separation rate of photogenerated carriers resulting from synergistic QD-on-sheet interactions between CdS QDs and CTFs. This work develops an efficient one-pot strategy to prepare metal-sulfide QDs with high dispersion and underlines the potential of utilizing CTFs as a suitable platform to develop efficient photocatalytic systems. © 2020 Elsevier B.V.

Keyword:

CdS QDs; Covalent triazine-based frameworks; H2 evolution; In situ growth; Photocatalysis; Visible light

Community:

  • [ 1 ] [Huang, H.]Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology, Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian, 350108, China
  • [ 2 ] [Xu, B.]Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology, Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian, 350108, China
  • [ 3 ] [Tan, Z.]Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology, Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian, 350108, China
  • [ 4 ] [Jiang, Q.]Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology, Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian, 350108, China
  • [ 5 ] [Fang, S.]Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology, Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian, 350108, China
  • [ 6 ] [Li, L.]Key Laboratory of Eco-materials Advanced Technology, Fuzhou University, Minhou, Fujian, 350108, China
  • [ 7 ] [Bi, J.]Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology, Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian, 350108, China
  • [ 8 ] [Bi, J.]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Minhou, Fujian, 350108, China
  • [ 9 ] [Wu, L.]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Minhou, Fujian, 350108, China

Reprint 's Address:

  • [Bi, J.]Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology, Department of Environmental Science and Engineering, Fuzhou University, MinhouChina

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Source :

Journal of Alloys and Compounds

ISSN: 0925-8388

Year: 2020

Volume: 833

5 . 3 1 6

JCR@2020

5 . 8 0 0

JCR@2023

ESI HC Threshold:196

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 35

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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