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author:

Wang, Zhi-wen (Wang, Zhi-wen.) [1] | Shi, Ying-zhang (Shi, Ying-zhang.) [2] | Liu, Cheng (Liu, Cheng.) [3] | Kang, Yue-yue (Kang, Yue-yue.) [4] | Wu, Ling (Wu, Ling.) [5] (Scholars:吴棱)

Indexed by:

EI SCIE

Abstract:

Cu2O clusters/TiO2 nanosheet (CNSX) as a photocatalyst is created to tailor the selectivity of CO2 photoreduc-tion. The catalysts show different selectivity of CO and CH4 with the increase of Cu2O mass. TiO2 nanosheet (NS) exhibits 100% selectivity of CH4 with a rate of 37.6 mu mol g(-1) h(-1). However, CO2 would be converted to CO with selectivity of 98% and yield of 162.6 mu mol g(-1) h(-1) on 5 wt% Cu2O/TiO2 nanosheet (CNS3). The Ti center dot center dot center dot CO2-center dot center dot center dot Ti coordination intermediate on Ti3+ sites is responsible for CH4 formation, whereas the Cu center dot center dot center dot CO2 center dot center dot center dot Ti specie on Cu1-delta and Ti4+delta sites determines CO production. The Cu+-Ti3+ interface interaction on CNSX surface can generate Cu1-delta and Ti4+delta sites and eliminate Ti3+ via the charge transfer from Ti3+ to Cu+. The selectivity is thus tailored effectively by Cu+-Ti3+ interface interaction mediated CO2 coordination model. This work would offer a new perspective for tailoring the selectivity of CO2 photoreduction.

Keyword:

Coordination Cu2O clusters Photoreduction CO2 TiO2 nanosheet

Community:

  • [ 1 ] [Wang, Zhi-wen]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350116, Peoples R China
  • [ 2 ] [Shi, Ying-zhang]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350116, Peoples R China
  • [ 3 ] [Liu, Cheng]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350116, Peoples R China
  • [ 4 ] [Kang, Yue-yue]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350116, Peoples R China
  • [ 5 ] [Wu, Ling]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350116, Peoples R China

Reprint 's Address:

  • 吴棱

    [Wu, Ling]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350116, Peoples R China

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Source :

APPLIED CATALYSIS B-ENVIRONMENTAL

ISSN: 0926-3373

Year: 2022

Volume: 301

2 2 . 1

JCR@2022

2 0 . 3 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

ESI HC Threshold:74

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 45

SCOPUS Cited Count: 9

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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