Visible Light TiO2 Photocatalyst Composite Based on Carbon Microfiber Derived from Human Hair

Visible Light TiO2 Photocatalyst Composite Based on Carbon Microfiber Derived from Human Hair

The present work reports titanium dioxide (TiO2) photocatalyst composite based on human hair that can operate efficiently under visible light. The human hair melanin structure contains active sites, which can be described as a carbon compound derived from a Quinone where one of two oxygen atoms is b...

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Main Authors: Basheer, Esmail Abdullah Mohammed, Abdulbari, Hayder A.
Format: Article
Language:English
Published: Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim 2018
Subjects:
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/22851/
http://umpir.ump.edu.my/id/eprint/22851/
http://umpir.ump.edu.my/id/eprint/22851/
http://umpir.ump.edu.my/id/eprint/22851/1/slct.201801161
id ump-22851
recordtype eprints
spelling ump-228512019-07-17T04:21:31Z http://umpir.ump.edu.my/id/eprint/22851/ Visible Light TiO2 Photocatalyst Composite Based on Carbon Microfiber Derived from Human Hair Basheer, Esmail Abdullah Mohammed Abdulbari, Hayder A. TP Chemical technology The present work reports titanium dioxide (TiO2) photocatalyst composite based on human hair that can operate efficiently under visible light. The human hair melanin structure contains active sites, which can be described as a carbon compound derived from a Quinone where one of two oxygen atoms is bonded to a hydrogen radical and that can be reversibly photogenerated under visible or ultraviolet irradiation. The human hair‐derived microfibers (HHDMs) were created by the pyrolyzing hair at 850 °C, resulting in a rod‐like hollow structure. TiO2 was immobilized on the pyrolyzed hair by a simple self‐template method. The resulting composite was calcined at five different temperatures (150 to 350 °C). The HHDM and HHDM‐TiO2 morphologies and the chemical compositions were characterized using scanning electron microscopy (SEM), Energy‐dispersive X‐ray spectroscopy (EDX), X‐ray photoelectron spectroscopy (XPS), Fourier‐transform infrared spectroscopy (FTIR), and X‐ray powder diffraction (XRD). The HHDM‐TiO2 photocatalytic efficiency in degrading methylene blue was investigated and compared to that of a conventional TiO2 catalyst (P25). HHDM‐TiO2 was more effective for methylene blue degradation under visible light than the conventional P25 catalyst suspension due to the unique photosensitivity and porous structure of the composite. The catalyst calcined at 300 °C showed the best performance, which was 71% higher than that of the P25 catalyst. Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim 2018-11-01 Article PeerReviewed text en http://umpir.ump.edu.my/id/eprint/22851/1/slct.201801161 Basheer, Esmail Abdullah Mohammed and Abdulbari, Hayder A. (2018) Visible Light TiO2 Photocatalyst Composite Based on Carbon Microfiber Derived from Human Hair. ChemistrySelect, 3 (41). pp. 11687-11695. ISSN 2365-6549 https://doi.org/10.1002/slct.201801161 https://doi.org/10.1002/slct.201801161
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Basheer, Esmail Abdullah Mohammed
Abdulbari, Hayder A.
Visible Light TiO2 Photocatalyst Composite Based on Carbon Microfiber Derived from Human Hair
description The present work reports titanium dioxide (TiO2) photocatalyst composite based on human hair that can operate efficiently under visible light. The human hair melanin structure contains active sites, which can be described as a carbon compound derived from a Quinone where one of two oxygen atoms is bonded to a hydrogen radical and that can be reversibly photogenerated under visible or ultraviolet irradiation. The human hair‐derived microfibers (HHDMs) were created by the pyrolyzing hair at 850 °C, resulting in a rod‐like hollow structure. TiO2 was immobilized on the pyrolyzed hair by a simple self‐template method. The resulting composite was calcined at five different temperatures (150 to 350 °C). The HHDM and HHDM‐TiO2 morphologies and the chemical compositions were characterized using scanning electron microscopy (SEM), Energy‐dispersive X‐ray spectroscopy (EDX), X‐ray photoelectron spectroscopy (XPS), Fourier‐transform infrared spectroscopy (FTIR), and X‐ray powder diffraction (XRD). The HHDM‐TiO2 photocatalytic efficiency in degrading methylene blue was investigated and compared to that of a conventional TiO2 catalyst (P25). HHDM‐TiO2 was more effective for methylene blue degradation under visible light than the conventional P25 catalyst suspension due to the unique photosensitivity and porous structure of the composite. The catalyst calcined at 300 °C showed the best performance, which was 71% higher than that of the P25 catalyst.
format Article
author Basheer, Esmail Abdullah Mohammed
Abdulbari, Hayder A.
author_facet Basheer, Esmail Abdullah Mohammed
Abdulbari, Hayder A.
author_sort Basheer, Esmail Abdullah Mohammed
title Visible Light TiO2 Photocatalyst Composite Based on Carbon Microfiber Derived from Human Hair
title_short Visible Light TiO2 Photocatalyst Composite Based on Carbon Microfiber Derived from Human Hair
title_full Visible Light TiO2 Photocatalyst Composite Based on Carbon Microfiber Derived from Human Hair
title_fullStr Visible Light TiO2 Photocatalyst Composite Based on Carbon Microfiber Derived from Human Hair
title_full_unstemmed Visible Light TiO2 Photocatalyst Composite Based on Carbon Microfiber Derived from Human Hair
title_sort visible light tio2 photocatalyst composite based on carbon microfiber derived from human hair
publisher Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
publishDate 2018
url http://umpir.ump.edu.my/id/eprint/22851/
http://umpir.ump.edu.my/id/eprint/22851/
http://umpir.ump.edu.my/id/eprint/22851/
http://umpir.ump.edu.my/id/eprint/22851/1/slct.201801161
first_indexed 2023-09-18T22:33:58Z
last_indexed 2023-09-18T22:33:58Z
_version_ 1777416471553507328

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