Cargando…
Synthesis of Ilmenite Nickel Titanite-Supported Carbon Nanofibers Derived from Polyvinylpyrrolidone as Photocatalyst for H(2) Production from Ammonia Borane Photohydrolysis
The present study involves the synthesis of photocatalytic composite nanofibers (NFs) comprising ilmenite nickel titanite-supported carbon nanofibers (NiTiO(3)/TiO(2)@CNFs) using an electrospinning process. The photocatalytic composite NFs obtained were utilized in hydrogen (H(2)) production from th...
Autores principales: | , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10422570/ https://www.ncbi.nlm.nih.gov/pubmed/37571156 http://dx.doi.org/10.3390/polym15153262 |
_version_ | 1785089243430780928 |
---|---|
author | Maafa, Ibrahim M. Zouli, Nasser Abutaleb, Ahmed Yousef, Ayman Qudsieh, Isam Y. Matar, Saleh M. Adam, Abdel Samed M. El-Halwany, M. M. |
author_facet | Maafa, Ibrahim M. Zouli, Nasser Abutaleb, Ahmed Yousef, Ayman Qudsieh, Isam Y. Matar, Saleh M. Adam, Abdel Samed M. El-Halwany, M. M. |
author_sort | Maafa, Ibrahim M. |
collection | PubMed |
description | The present study involves the synthesis of photocatalytic composite nanofibers (NFs) comprising ilmenite nickel titanite-supported carbon nanofibers (NiTiO(3)/TiO(2)@CNFs) using an electrospinning process. The photocatalytic composite NFs obtained were utilized in hydrogen (H(2)) production from the photohydrolysis of ammonia borane (AB). The experimental findings show that the photocatalytic composite NFs with a loading of 25 mg had a good catalytic performance for H(2) generation, producing the stoichiometric H(2) in 11 min using 1 mmol AB under visible light at 25 °C and 1000 rpm. The increase in catalyst load to 50, 75, and 100 mg leads to a corresponding reduction in the reaction time to 7, 5, and 4 min. The findings from the kinetics investigations suggest that the rate of the photohydrolysis reaction is directly proportional to the amount of catalyst in the reaction system, adhering to a first-order reaction rate. Furthermore, it was observed that the reaction rate remains unaffected by the concentration of AB, thereby suggesting a reaction of zero order. Increasing the reaction temperature results in a decrease in the duration of the photohydrolysis reaction. Furthermore, an estimated activation energy value of 35.19 kJ mol(−1) was obtained. The composite nanofibers demonstrated remarkable and consistent effectiveness throughout five consecutive cycles. The results suggest that composite NFs possess the capacity to function as a feasible substitute for costly catalysts in the process of H(2) generation from AB. |
format | Online Article Text |
id | pubmed-10422570 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-104225702023-08-13 Synthesis of Ilmenite Nickel Titanite-Supported Carbon Nanofibers Derived from Polyvinylpyrrolidone as Photocatalyst for H(2) Production from Ammonia Borane Photohydrolysis Maafa, Ibrahim M. Zouli, Nasser Abutaleb, Ahmed Yousef, Ayman Qudsieh, Isam Y. Matar, Saleh M. Adam, Abdel Samed M. El-Halwany, M. M. Polymers (Basel) Article The present study involves the synthesis of photocatalytic composite nanofibers (NFs) comprising ilmenite nickel titanite-supported carbon nanofibers (NiTiO(3)/TiO(2)@CNFs) using an electrospinning process. The photocatalytic composite NFs obtained were utilized in hydrogen (H(2)) production from the photohydrolysis of ammonia borane (AB). The experimental findings show that the photocatalytic composite NFs with a loading of 25 mg had a good catalytic performance for H(2) generation, producing the stoichiometric H(2) in 11 min using 1 mmol AB under visible light at 25 °C and 1000 rpm. The increase in catalyst load to 50, 75, and 100 mg leads to a corresponding reduction in the reaction time to 7, 5, and 4 min. The findings from the kinetics investigations suggest that the rate of the photohydrolysis reaction is directly proportional to the amount of catalyst in the reaction system, adhering to a first-order reaction rate. Furthermore, it was observed that the reaction rate remains unaffected by the concentration of AB, thereby suggesting a reaction of zero order. Increasing the reaction temperature results in a decrease in the duration of the photohydrolysis reaction. Furthermore, an estimated activation energy value of 35.19 kJ mol(−1) was obtained. The composite nanofibers demonstrated remarkable and consistent effectiveness throughout five consecutive cycles. The results suggest that composite NFs possess the capacity to function as a feasible substitute for costly catalysts in the process of H(2) generation from AB. MDPI 2023-07-31 /pmc/articles/PMC10422570/ /pubmed/37571156 http://dx.doi.org/10.3390/polym15153262 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Maafa, Ibrahim M. Zouli, Nasser Abutaleb, Ahmed Yousef, Ayman Qudsieh, Isam Y. Matar, Saleh M. Adam, Abdel Samed M. El-Halwany, M. M. Synthesis of Ilmenite Nickel Titanite-Supported Carbon Nanofibers Derived from Polyvinylpyrrolidone as Photocatalyst for H(2) Production from Ammonia Borane Photohydrolysis |
title | Synthesis of Ilmenite Nickel Titanite-Supported Carbon Nanofibers Derived from Polyvinylpyrrolidone as Photocatalyst for H(2) Production from Ammonia Borane Photohydrolysis |
title_full | Synthesis of Ilmenite Nickel Titanite-Supported Carbon Nanofibers Derived from Polyvinylpyrrolidone as Photocatalyst for H(2) Production from Ammonia Borane Photohydrolysis |
title_fullStr | Synthesis of Ilmenite Nickel Titanite-Supported Carbon Nanofibers Derived from Polyvinylpyrrolidone as Photocatalyst for H(2) Production from Ammonia Borane Photohydrolysis |
title_full_unstemmed | Synthesis of Ilmenite Nickel Titanite-Supported Carbon Nanofibers Derived from Polyvinylpyrrolidone as Photocatalyst for H(2) Production from Ammonia Borane Photohydrolysis |
title_short | Synthesis of Ilmenite Nickel Titanite-Supported Carbon Nanofibers Derived from Polyvinylpyrrolidone as Photocatalyst for H(2) Production from Ammonia Borane Photohydrolysis |
title_sort | synthesis of ilmenite nickel titanite-supported carbon nanofibers derived from polyvinylpyrrolidone as photocatalyst for h(2) production from ammonia borane photohydrolysis |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10422570/ https://www.ncbi.nlm.nih.gov/pubmed/37571156 http://dx.doi.org/10.3390/polym15153262 |
work_keys_str_mv | AT maafaibrahimm synthesisofilmenitenickeltitanitesupportedcarbonnanofibersderivedfrompolyvinylpyrrolidoneasphotocatalystforh2productionfromammoniaboranephotohydrolysis AT zoulinasser synthesisofilmenitenickeltitanitesupportedcarbonnanofibersderivedfrompolyvinylpyrrolidoneasphotocatalystforh2productionfromammoniaboranephotohydrolysis AT abutalebahmed synthesisofilmenitenickeltitanitesupportedcarbonnanofibersderivedfrompolyvinylpyrrolidoneasphotocatalystforh2productionfromammoniaboranephotohydrolysis AT yousefayman synthesisofilmenitenickeltitanitesupportedcarbonnanofibersderivedfrompolyvinylpyrrolidoneasphotocatalystforh2productionfromammoniaboranephotohydrolysis AT qudsiehisamy synthesisofilmenitenickeltitanitesupportedcarbonnanofibersderivedfrompolyvinylpyrrolidoneasphotocatalystforh2productionfromammoniaboranephotohydrolysis AT matarsalehm synthesisofilmenitenickeltitanitesupportedcarbonnanofibersderivedfrompolyvinylpyrrolidoneasphotocatalystforh2productionfromammoniaboranephotohydrolysis AT adamabdelsamedm synthesisofilmenitenickeltitanitesupportedcarbonnanofibersderivedfrompolyvinylpyrrolidoneasphotocatalystforh2productionfromammoniaboranephotohydrolysis AT elhalwanymm synthesisofilmenitenickeltitanitesupportedcarbonnanofibersderivedfrompolyvinylpyrrolidoneasphotocatalystforh2productionfromammoniaboranephotohydrolysis |