Photocatalytic water splitting over titanium aluminium carbide assisted ruthenium with graphitic carbon nitride for hydrogen production

Photocatalytic water splitting for hydrogen production is considered to solve the issue of greenhouse gases and other environmental concerns as hydrogen is considered as an alternative source of energy that can replace fossil fuel. The objective of this study is to develop ternary photocatalyst func...

Full description

Saved in:

Bibliographic Details
Main Author:	Badawod, Faisal Abdullah Ahmed
Format:	Thesis
Language:	English
Published:	2020
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/92187/1/FaisalAbdullajAhmedBadawodMSChE2020.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-utm-ep.92187
record_format	uketd_dc
spelling	my-utm-ep.921872021-08-30T05:10:06Z Photocatalytic water splitting over titanium aluminium carbide assisted ruthenium with graphitic carbon nitride for hydrogen production 2020 Badawod, Faisal Abdullah Ahmed TP Chemical technology Photocatalytic water splitting for hydrogen production is considered to solve the issue of greenhouse gases and other environmental concerns as hydrogen is considered as an alternative source of energy that can replace fossil fuel. The objective of this study is to develop ternary photocatalyst functional under visible light for water splitting to generate hydrogen. Titanium aluminium carbide (Ti3AlC2) dispersed ruthenium (Ru) doped graphitic carbon nitride (g-C3N4) composite (Ti3AlC2/Ru/g-C3N4) was developed using hydrothermal assisted impregnation method followed by characterization including XRD, SEM, TEM, Raman, UV-visible and PL spectroscopy techniques. The function of g-C3N4 is to enhance visible light harvesting, while Ti3AlC2 developed Z-scheme hetero-junction for fast charges separation as a result more electrons were produced for H+ to H2 reaction. The photocatalytic activity was tested using slurry photo-reactor systems for continuous H2 production. Ti3AlC2/Ru/g-C3N4 composite was observed to produce 1665 µmolg-1h-1 of H2 with each gave 1.3 and 1.93 times higher than produced from Ru/g-C3N4 and Ti3AlC2/g-C3N4 samples, respectively. This enhanced hydrogen production was obviously due to superior photogenerated charges separation with higher visible light absorption and developing Z-scheme heterojunction. The operating parameters such as varying catalyst loading, various sacrificial reagents and irradiation time were investigated. Besides, the stability of catalyst over 3 continuous cycles was also studied. The highest yield rate of hydrogen production was for 0.25 g catalyst loading. H2 production by using different sacrificial reagents was in order: water < glycerol < ethanol < ethylene glycol < methanol. In conclusion, excellent performance of composite catalyst using a slurry reactor for H2 production would offer a new opportunity of developing structured photocatalysts for renewable fuels production under visible light. 2020 Thesis http://eprints.utm.my/id/eprint/92187/ http://eprints.utm.my/id/eprint/92187/1/FaisalAbdullajAhmedBadawodMSChE2020.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:139146 masters Universiti Teknologi Malaysia, Faculty of Engineering - School of Chemical & Energy Engineering Faculty of Engineering - School of Chemical & Energy Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Badawod, Faisal Abdullah Ahmed Photocatalytic water splitting over titanium aluminium carbide assisted ruthenium with graphitic carbon nitride for hydrogen production
description	Photocatalytic water splitting for hydrogen production is considered to solve the issue of greenhouse gases and other environmental concerns as hydrogen is considered as an alternative source of energy that can replace fossil fuel. The objective of this study is to develop ternary photocatalyst functional under visible light for water splitting to generate hydrogen. Titanium aluminium carbide (Ti3AlC2) dispersed ruthenium (Ru) doped graphitic carbon nitride (g-C3N4) composite (Ti3AlC2/Ru/g-C3N4) was developed using hydrothermal assisted impregnation method followed by characterization including XRD, SEM, TEM, Raman, UV-visible and PL spectroscopy techniques. The function of g-C3N4 is to enhance visible light harvesting, while Ti3AlC2 developed Z-scheme hetero-junction for fast charges separation as a result more electrons were produced for H+ to H2 reaction. The photocatalytic activity was tested using slurry photo-reactor systems for continuous H2 production. Ti3AlC2/Ru/g-C3N4 composite was observed to produce 1665 µmolg-1h-1 of H2 with each gave 1.3 and 1.93 times higher than produced from Ru/g-C3N4 and Ti3AlC2/g-C3N4 samples, respectively. This enhanced hydrogen production was obviously due to superior photogenerated charges separation with higher visible light absorption and developing Z-scheme heterojunction. The operating parameters such as varying catalyst loading, various sacrificial reagents and irradiation time were investigated. Besides, the stability of catalyst over 3 continuous cycles was also studied. The highest yield rate of hydrogen production was for 0.25 g catalyst loading. H2 production by using different sacrificial reagents was in order: water < glycerol < ethanol < ethylene glycol < methanol. In conclusion, excellent performance of composite catalyst using a slurry reactor for H2 production would offer a new opportunity of developing structured photocatalysts for renewable fuels production under visible light.
format	Thesis
qualification_level	Master's degree
author	Badawod, Faisal Abdullah Ahmed
author_facet	Badawod, Faisal Abdullah Ahmed
author_sort	Badawod, Faisal Abdullah Ahmed
title	Photocatalytic water splitting over titanium aluminium carbide assisted ruthenium with graphitic carbon nitride for hydrogen production
title_short	Photocatalytic water splitting over titanium aluminium carbide assisted ruthenium with graphitic carbon nitride for hydrogen production
title_full	Photocatalytic water splitting over titanium aluminium carbide assisted ruthenium with graphitic carbon nitride for hydrogen production
title_fullStr	Photocatalytic water splitting over titanium aluminium carbide assisted ruthenium with graphitic carbon nitride for hydrogen production
title_full_unstemmed	Photocatalytic water splitting over titanium aluminium carbide assisted ruthenium with graphitic carbon nitride for hydrogen production
title_sort	photocatalytic water splitting over titanium aluminium carbide assisted ruthenium with graphitic carbon nitride for hydrogen production
granting_institution	Universiti Teknologi Malaysia, Faculty of Engineering - School of Chemical & Energy Engineering
granting_department	Faculty of Engineering - School of Chemical & Energy Engineering
publishDate	2020
url	http://eprints.utm.my/id/eprint/92187/1/FaisalAbdullajAhmedBadawodMSChE2020.pdf
_version_	1747818576721477632

Photocatalytic water splitting over titanium aluminium carbide assisted ruthenium with graphitic carbon nitride for hydrogen production

Similar Items