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Photocatalytic performance of black titanium dioxide for phenolic compounds removal from oil refinery wastewater: nanoparticles vs nanowires

In this study, TiO2 nanoparticles (NPs) and TiO2 nanowires (NWs) were synthesized via modified sol�gel and hydrothermal methods, respectively. The TiO2 NPs and TiO2 NWs were characterized employing various analytical techniques. The performance of TiO2 NPs and TiO2 NWs was evaluated and compared f...

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Main Authors: Nawaz, R., Sahrin, N.T., Haider, S., Ullah, H., Junaid, M., Akhtar, M.S., Khan, S.
Format: Article
Published: Springer Science and Business Media Deutschland GmbH 2022
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85124284248&doi=10.1007%2fs13204-021-02240-5&partnerID=40&md5=c5803ebca4da5e66f32b2fcf1fc85bef
http://eprints.utp.edu.my/29008/
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spelling my.utp.eprints.290082022-03-17T03:08:39Z Photocatalytic performance of black titanium dioxide for phenolic compounds removal from oil refinery wastewater: nanoparticles vs nanowires Nawaz, R. Sahrin, N.T. Haider, S. Ullah, H. Junaid, M. Akhtar, M.S. Khan, S. In this study, TiO2 nanoparticles (NPs) and TiO2 nanowires (NWs) were synthesized via modified sol�gel and hydrothermal methods, respectively. The TiO2 NPs and TiO2 NWs were characterized employing various analytical techniques. The performance of TiO2 NPs and TiO2 NWs was evaluated and compared for phenols� removal from model oil refinery wastewater under visible light irradiation. The TiO2 NPs and TiO2 NWs were pure anatase crystalline phases with average particle size of 10.17 nm and 6.82 nm and a narrow bandgap of 2.41 and 2.66 eV, respectively. 3D view surface plots confirm that the long-range atomic arrangement of the atom was intact, indicated by atomically flat surfaces. The recombination rate of electrons and holes was significantly lower in TiO2 NWs compared to TiO2 NPs. Both the samples were able to remove more than 90 of phenols from model oil refinery wastewater. Phenol removal from neutralized spent caustic took a longer time (300 min) compared to desalter effluent and tank water drain (<180 min). Phenol removal efficiency increased when TiO2 NPs and TiO2 NWs were employed combinedly. TiO2 NWs were highly stable, as suggested by their performance for photocatalytic removal of phenols after five consecutive cycles. © 2021, King Abdulaziz City for Science and Technology. Springer Science and Business Media Deutschland GmbH 2022 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85124284248&doi=10.1007%2fs13204-021-02240-5&partnerID=40&md5=c5803ebca4da5e66f32b2fcf1fc85bef Nawaz, R. and Sahrin, N.T. and Haider, S. and Ullah, H. and Junaid, M. and Akhtar, M.S. and Khan, S. (2022) Photocatalytic performance of black titanium dioxide for phenolic compounds removal from oil refinery wastewater: nanoparticles vs nanowires. Applied Nanoscience (Switzerland) . http://eprints.utp.edu.my/29008/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description In this study, TiO2 nanoparticles (NPs) and TiO2 nanowires (NWs) were synthesized via modified sol�gel and hydrothermal methods, respectively. The TiO2 NPs and TiO2 NWs were characterized employing various analytical techniques. The performance of TiO2 NPs and TiO2 NWs was evaluated and compared for phenols� removal from model oil refinery wastewater under visible light irradiation. The TiO2 NPs and TiO2 NWs were pure anatase crystalline phases with average particle size of 10.17 nm and 6.82 nm and a narrow bandgap of 2.41 and 2.66 eV, respectively. 3D view surface plots confirm that the long-range atomic arrangement of the atom was intact, indicated by atomically flat surfaces. The recombination rate of electrons and holes was significantly lower in TiO2 NWs compared to TiO2 NPs. Both the samples were able to remove more than 90 of phenols from model oil refinery wastewater. Phenol removal from neutralized spent caustic took a longer time (300 min) compared to desalter effluent and tank water drain (<180 min). Phenol removal efficiency increased when TiO2 NPs and TiO2 NWs were employed combinedly. TiO2 NWs were highly stable, as suggested by their performance for photocatalytic removal of phenols after five consecutive cycles. © 2021, King Abdulaziz City for Science and Technology.
format Article
author Nawaz, R.
Sahrin, N.T.
Haider, S.
Ullah, H.
Junaid, M.
Akhtar, M.S.
Khan, S.
spellingShingle Nawaz, R.
Sahrin, N.T.
Haider, S.
Ullah, H.
Junaid, M.
Akhtar, M.S.
Khan, S.
Photocatalytic performance of black titanium dioxide for phenolic compounds removal from oil refinery wastewater: nanoparticles vs nanowires
author_facet Nawaz, R.
Sahrin, N.T.
Haider, S.
Ullah, H.
Junaid, M.
Akhtar, M.S.
Khan, S.
author_sort Nawaz, R.
title Photocatalytic performance of black titanium dioxide for phenolic compounds removal from oil refinery wastewater: nanoparticles vs nanowires
title_short Photocatalytic performance of black titanium dioxide for phenolic compounds removal from oil refinery wastewater: nanoparticles vs nanowires
title_full Photocatalytic performance of black titanium dioxide for phenolic compounds removal from oil refinery wastewater: nanoparticles vs nanowires
title_fullStr Photocatalytic performance of black titanium dioxide for phenolic compounds removal from oil refinery wastewater: nanoparticles vs nanowires
title_full_unstemmed Photocatalytic performance of black titanium dioxide for phenolic compounds removal from oil refinery wastewater: nanoparticles vs nanowires
title_sort photocatalytic performance of black titanium dioxide for phenolic compounds removal from oil refinery wastewater: nanoparticles vs nanowires
publisher Springer Science and Business Media Deutschland GmbH
publishDate 2022
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85124284248&doi=10.1007%2fs13204-021-02240-5&partnerID=40&md5=c5803ebca4da5e66f32b2fcf1fc85bef
http://eprints.utp.edu.my/29008/
_version_ 1738656912307650560
score 13.211869

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