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author:

Xia, Yuzhou (Xia, Yuzhou.) [1] | Liang, Ruowen (Liang, Ruowen.) [2] | Yang, Min-Quan (Yang, Min-Quan.) [3] | Zhu, Shuying (Zhu, Shuying.) [4] (Scholars:祝淑颖) | Yan, Guiyang (Yan, Guiyang.) [5]

Indexed by:

SCIE

Abstract:

The design and synthesis of a Z-schematic photocatalytic heterostructure with an intimate interface is of great significance for the migration and separation of photogenerated charge carriers, but still remains a challenge. Here, we developed an efficient Z-scheme organic/inorganic g-C3N4/LDH heterojunction by in situ growing of inorganic CoAl-LDH firmly on organic g-C3N4 nanosheet (NS). Benefiting from the two-dimensional (2D) morphology and the surface exposed pyridine-like nitrogen atoms, the g-C3N4 NS offers efficient trap sits to capture transition metal ions. As such, CoAl-LDH NS can be tightly attached onto the g-C3N4 NS, forming a strong interaction between CoAl-LDH and g-C3N4 via nitrogen-metal bonds. Moreover, the 2D/2D interface provides a high-speed channel for the interfacial charge transfer. As a result, the prepared heterojunction composite exhibits a greatly improved photocatalytic H-2 evolution activity, as well as considerable stability. Under visible light irradiation of 4 h, the optimal H-2 evolution rate reaches 1952.9 mu mol g(-1), which is 8.4 times of the bare g-C3N4 NS. The in situ construction of organic/inorganic heterojunction with a chemical-bonded interface may provide guidance for the designing of high-performance heterostructure photocatalysts.

Keyword:

chemically bonded interface g-C3N4/LDH heterojunction Z-scheme

Community:

  • [ 1 ] [Xia, Yuzhou]Ningde Normal Univ, Fujian Prov Univ Key Lab Green Energy & Environm, Ningde 352100, Peoples R China
  • [ 2 ] [Liang, Ruowen]Ningde Normal Univ, Fujian Prov Univ Key Lab Green Energy & Environm, Ningde 352100, Peoples R China
  • [ 3 ] [Yan, Guiyang]Ningde Normal Univ, Fujian Prov Univ Key Lab Green Energy & Environm, Ningde 352100, Peoples R China
  • [ 4 ] [Yang, Min-Quan]Fujian Normal Univ, Coll Environm Sci & Engn, Fujian Key Lab Pollut Control & Resource Reuse, Fuzhou 350007, Peoples R China
  • [ 5 ] [Zhu, Shuying]Fuzhou Univ, Coll Chem, Fuzhou 350116, Peoples R China
  • [ 6 ] [Yan, Guiyang]Ningde Normal Univ, Prov Key Lab Featured Mat Biochem Ind, Ningde 352100, Peoples R China

Reprint 's Address:

  • 杨民权 祝淑颖

    [Yan, Guiyang]Ningde Normal Univ, Fujian Prov Univ Key Lab Green Energy & Environm, Ningde 352100, Peoples R China;;[Yang, Min-Quan]Fujian Normal Univ, Coll Environm Sci & Engn, Fujian Key Lab Pollut Control & Resource Reuse, Fuzhou 350007, Peoples R China;;[Zhu, Shuying]Fuzhou Univ, Coll Chem, Fuzhou 350116, Peoples R China;;[Yan, Guiyang]Ningde Normal Univ, Prov Key Lab Featured Mat Biochem Ind, Ningde 352100, Peoples R China

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Source :

NANOMATERIALS

ISSN: 2079-4991

Year: 2021

Issue: 10

Volume: 11

5 . 7 1 9

JCR@2021

4 . 4 0 0

JCR@2023

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:142

JCR Journal Grade:1

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 12

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 8

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