Highly effective B@g-C3N4/polyaniline nanoblend for photoelectrocatalytic reduction of CO2 to methanol

Photoelectrocatalytic (PEC) conversion of CO2 has been extensively investigated as it uses solar energy to combine CO2 and water to produce hydrocarbons. In the present work, B@graphitic carbon nitride (g-C3N4)/polyaniline (PANI) nanoblend was synthesized by in situ polymerization of aniline in the...

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Main Authors: Tarek, Mostafa, Atta, Mahmoud, Muhd Zahiruddin, Shukor, Hamidah, Abdullah, Khan, Md Maksudur Rahman
Format: Article
Language:English
Published: Wiley-VCH Verlag 2023
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/40349/
http://umpir.ump.edu.my/id/eprint/40349/1/Highly%20effective%20Bag-C3N4polyaniline%20nanoblend%20for%20photoelectrocatalytic%20reduction.pdf
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author Tarek, Mostafa
Atta, Mahmoud
Muhd Zahiruddin, Shukor
Hamidah, Abdullah
Khan, Md Maksudur Rahman
author_facet Tarek, Mostafa
Atta, Mahmoud
Muhd Zahiruddin, Shukor
Hamidah, Abdullah
Khan, Md Maksudur Rahman
author_sort Tarek, Mostafa
building UMP Institutional Repository
collection Online Access
description Photoelectrocatalytic (PEC) conversion of CO2 has been extensively investigated as it uses solar energy to combine CO2 and water to produce hydrocarbons. In the present work, B@graphitic carbon nitride (g-C3N4)/polyaniline (PANI) nanoblend was synthesized by in situ polymerization of aniline in the presence of B@g-C3N4 for PEC CO2 reduction. The catalyst was characterized by field emission scanning electron microscopy (FESEM), transmission electron microscopy, X-ray diffraction, UV-Vis absorption spectroscopy, photoluminescence, X-ray photoelectron spectroscopy (XPS), and Mott-Schottky analysis. The PEC activity was evaluated by linear sweep voltammetry (LSV) and chronoamperometry. XRD revealed the formation of g-C3N4, while B doping was confirmed by XPS. The presence of PANI was visualized by FESEM. A remarkable cathodic current associated with CO2 reduction was observed during LSV from an onset potential of –0.01 V vs. normal hydrogen electrode (NHE), which is more positive than that of B@g-C3N4 (–0.82 V vs. NHE), and the positive shift is attributed to the slow charge recombination kinetics of B@g-C3N4/PANI as evidenced by PL results. The mechanism of PEC CO2 reduction was investigated and discussed on the basis of the Mott-Schottky results. In conclusion, B@g-C3N4/PANI opens a new avenue to develop photoelectrocatalysts for PEC CO2 reduction to methanol.
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spelling ump-403492024-02-14T06:23:53Z http://umpir.ump.edu.my/id/eprint/40349/ Highly effective B@g-C3N4/polyaniline nanoblend for photoelectrocatalytic reduction of CO2 to methanol Tarek, Mostafa Atta, Mahmoud Muhd Zahiruddin, Shukor Hamidah, Abdullah Khan, Md Maksudur Rahman TP Chemical technology Photoelectrocatalytic (PEC) conversion of CO2 has been extensively investigated as it uses solar energy to combine CO2 and water to produce hydrocarbons. In the present work, B@graphitic carbon nitride (g-C3N4)/polyaniline (PANI) nanoblend was synthesized by in situ polymerization of aniline in the presence of B@g-C3N4 for PEC CO2 reduction. The catalyst was characterized by field emission scanning electron microscopy (FESEM), transmission electron microscopy, X-ray diffraction, UV-Vis absorption spectroscopy, photoluminescence, X-ray photoelectron spectroscopy (XPS), and Mott-Schottky analysis. The PEC activity was evaluated by linear sweep voltammetry (LSV) and chronoamperometry. XRD revealed the formation of g-C3N4, while B doping was confirmed by XPS. The presence of PANI was visualized by FESEM. A remarkable cathodic current associated with CO2 reduction was observed during LSV from an onset potential of –0.01 V vs. normal hydrogen electrode (NHE), which is more positive than that of B@g-C3N4 (–0.82 V vs. NHE), and the positive shift is attributed to the slow charge recombination kinetics of B@g-C3N4/PANI as evidenced by PL results. The mechanism of PEC CO2 reduction was investigated and discussed on the basis of the Mott-Schottky results. In conclusion, B@g-C3N4/PANI opens a new avenue to develop photoelectrocatalysts for PEC CO2 reduction to methanol. Wiley-VCH Verlag 2023-12 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/40349/1/Highly%20effective%20Bag-C3N4polyaniline%20nanoblend%20for%20photoelectrocatalytic%20reduction.pdf Tarek, Mostafa and Atta, Mahmoud and Muhd Zahiruddin, Shukor and Hamidah, Abdullah and Khan, Md Maksudur Rahman (2023) Highly effective B@g-C3N4/polyaniline nanoblend for photoelectrocatalytic reduction of CO2 to methanol. Chemical Engineering and Technology, 46 (12). 2661 -2669. ISSN 0930-7516. (Published) https://doi.org/10.1002/ceat.202300035 https://doi.org/10.1002/ceat.202300035
spellingShingle TP Chemical technology
Tarek, Mostafa
Atta, Mahmoud
Muhd Zahiruddin, Shukor
Hamidah, Abdullah
Khan, Md Maksudur Rahman
Highly effective B@g-C3N4/polyaniline nanoblend for photoelectrocatalytic reduction of CO2 to methanol
title Highly effective B@g-C3N4/polyaniline nanoblend for photoelectrocatalytic reduction of CO2 to methanol
title_full Highly effective B@g-C3N4/polyaniline nanoblend for photoelectrocatalytic reduction of CO2 to methanol
title_fullStr Highly effective B@g-C3N4/polyaniline nanoblend for photoelectrocatalytic reduction of CO2 to methanol
title_full_unstemmed Highly effective B@g-C3N4/polyaniline nanoblend for photoelectrocatalytic reduction of CO2 to methanol
title_short Highly effective B@g-C3N4/polyaniline nanoblend for photoelectrocatalytic reduction of CO2 to methanol
title_sort highly effective b@g-c3n4/polyaniline nanoblend for photoelectrocatalytic reduction of co2 to methanol
topic TP Chemical technology
url http://umpir.ump.edu.my/id/eprint/40349/
http://umpir.ump.edu.my/id/eprint/40349/
http://umpir.ump.edu.my/id/eprint/40349/
http://umpir.ump.edu.my/id/eprint/40349/1/Highly%20effective%20Bag-C3N4polyaniline%20nanoblend%20for%20photoelectrocatalytic%20reduction.pdf