Nanostructure engineering via intramolecular construction of carbon nitride as efficient photocatalyst for co2 reduction
Light-driven heterogeneous photocatalysis has gained great significance for generating solar fuel; the challenging charge separation process and sluggish surface catalytic reactions significantly restrict the progress of solar energy conversion using a semiconductor photocatalyst. Herein, we propose...
Main Authors: | , , , , , , , , , , |
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Format: | Article |
Language: | English |
Published: |
MDPI
2021
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Series: | Nanomaterials
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Subjects: | |
Online Access: | View Fulltext in Publisher View in Scopus |
LEADER | 02895nam a2200337Ia 4500 | ||
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001 | 10.3390-nano11123245 | ||
008 | 220121s2021 CNT 000 0 und d | ||
020 | |a 20794991 (ISSN) | ||
245 | 1 | 0 | |a Nanostructure engineering via intramolecular construction of carbon nitride as efficient photocatalyst for co2 reduction |
260 | 0 | |b MDPI |c 2021 | |
490 | 1 | |a Nanomaterials | |
650 | 0 | 4 | |a Carbon nitride (CN) |
650 | 0 | 4 | |a CO2 reduction |
650 | 0 | 4 | |a Copolymerization |
650 | 0 | 4 | |a Dihydroxy benzene (DHB) |
650 | 0 | 4 | |a Photocatalysis |
856 | |z View Fulltext in Publisher |u https://doi.org/10.3390/nano11123245 | ||
856 | |z View in Scopus |u https://www.scopus.com/inward/record.uri?eid=2-s2.0-85120072644&doi=10.3390%2fnano11123245&partnerID=40&md5=a120838c91f5e03fddf84ed3808edd41 | ||
520 | 3 | |a Light-driven heterogeneous photocatalysis has gained great significance for generating solar fuel; the challenging charge separation process and sluggish surface catalytic reactions significantly restrict the progress of solar energy conversion using a semiconductor photocatalyst. Herein, we propose a novel and feasible strategy to incorporate dihydroxy benzene (DHB) as a conjugated monomer within the framework of urea containing CN (CNU-DHBx) to tune the electronic conductivity and charge separation due to the aromaticity of the benzene ring, which acts as an electrondonating species. Systematic characterizations such as SPV, PL, XPS, DRS, and TRPL demonstrated that the incorporation of the DHB monomer greatly enhanced the photocatalytic CO2 reduction of CN due to the enhanced charge separation and modulation of the ionic mobility. The significantly enhanced photocatalytic activity of CNU–DHB15.0 in comparison with parental CN was 85 µmol/h for CO and 19.92 µmol/h of the H2 source. It can be attributed to the electron–hole pair separation and enhance the optical adsorption due to the presence of DHB. Furthermore, this remarkable modification affected the chemical composition, bandgap, and surface area, encouraging the controlled detachment of light-produced photons and making it the ideal choice for CO2 photoreduction. Our research findings potentially offer a solution for tuning complex charge separation and catalytic reactions in photocatalysis that could practically lead to the generation of artificial photocatalysts for efficient solar energy into chemical energy conversion. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. | |
700 | 1 | 0 | |a Al-Ghamdi, A.A. |e author |
700 | 1 | 0 | |a Al-Sehemi, A.G. |e author |
700 | 1 | 0 | |a Altalhi, T. |e author |
700 | 1 | 0 | |a Amin, M.A. |e author |
700 | 1 | 0 | |a Boukhari, M. |e author |
700 | 1 | 0 | |a El-Nasser, K.S. |e author |
700 | 1 | 0 | |a Hayat, A. |e author |
700 | 1 | 0 | |a Ismail, W.I.N.B.W. |e author |
700 | 1 | 0 | |a Palamanit, A. |e author |
700 | 1 | 0 | |a Sohail, M. |e author |
700 | 1 | 0 | |a Taha, T.A.M. |e author |
773 | |t Nanomaterials |