Staff View: Unveiling the synergistic effect of an nZVI–SiO2–TiO2 nanocomposite for the remediation of dye contaminated wastewater†

Unveiling the synergistic effect of an nZVI–SiO2–TiO2 nanocomposite for the remediation of dye contaminated wastewater†

Water contamination and scarcity pose critical global challenges. Existing water remediation technologies such as membrane technologies lack hydrophilic surface properties, prompting the need for novel, highly efficient supportive materials. Photocatalysis emerges as a promising solution for degrad...

Full description

Saved in:

Bibliographic Details
Main Authors:	Murtala, Namakka, Md Rezaur, Rahman, Khairul Anwar, Mohamad Said, Kuok, King Kuok, Fahmi Asyadi, Md Yusof, Muneera S. M., Al-Saleem, Jehan Y., Al-Humaidi, Mohammed M., Rahman
Format:	Article
Language:	English
Published:	The Royal Society of Chemistry 2024
Subjects:	TP Chemical technology
Online Access:	http://ir.unimas.my/id/eprint/46639/1/Unveiling%20the%20synergistic%20effect.pdf http://ir.unimas.my/id/eprint/46639/ https://pubs.rsc.org/en/Content/ArticleLanding/2024/MA/D4MA00853G
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my.unimas.ir-46639
record_format	eprints
spelling	my.unimas.ir-466392024-11-18T02:26:07Z http://ir.unimas.my/id/eprint/46639/ Unveiling the synergistic effect of an nZVI–SiO2–TiO2 nanocomposite for the remediation of dye contaminated wastewater† Murtala, Namakka Md Rezaur, Rahman Khairul Anwar, Mohamad Said Kuok, King Kuok Fahmi Asyadi, Md Yusof Muneera S. M., Al-Saleem Jehan Y., Al-Humaidi Mohammed M., Rahman TP Chemical technology Water contamination and scarcity pose critical global challenges. Existing water remediation technologies such as membrane technologies lack hydrophilic surface properties, prompting the need for novel, highly efficient supportive materials. Photocatalysis emerges as a promising solution for degrading organic pollutants in wastewater. However, existing photocatalysts such as titanium dioxide (TiO2) suffer from rapid recombination of photogenerated charge carriers and lower catalytic activity, hindering performance. Herein, a novel, high sorption capacity nZVI–SiO2–TiO2 nanocomposite material was synthesized via a combined chemical reduction approach. The influence of synthesis pH and the synergistic effects of nZVI, SiO2, and TiO2 on the physicochemical properties and overall performance of the nZVI–SiO2–TiO2 nanocomposite were investigated. Three sets of nZVI–SiO2–TiO2 nanocomposites were synthesized by varying synthesis pH from 2 to 4. MB dye degradation experiments and thermal analysis revealed that the nZVI– SiO2–TiO2 nanocomposite synthesized under pH 2 synthesis conditions exhibited the fastest dye degradation rate, highest removal efficiency (100%), and thermal stability. Characterization techniques, including FTIR, EDS (energy dispersive X-ray spectroscopy), SEM, BET (Brunauer–Emmett–Teller), XRD, TGA (thermogravimetric analysis), and DSC (differential scanning calorimetry), revealed that lower nZVI–SiO2–TiO2 synthesis pH enhanced the material’s specific surface area, crystallinity, and the interfacial interactions of nZVI, SiO2, and TiO2 components in the nanocomposite. The reusability test showed 490% efficiency after 5 successive cycles. The sorption mechanism and methylene blue (MB) dye speciation test corroborated the synergistic adsorption and reduction potential of nZVI–SiO2–TiO2 functional materials with 100% mineralized methylene blue (MB+ species) at MB dye solution pH above 6.0. After economic considerations, it is believed that the exceptional adsorption and recycling abilities of the novel nZVI–SiO2–TiO2 material, coupled with its thermal stability, could counterbalance its upfront expenses, potentially making it a feasible choice for wastewater treatment applications. The Royal Society of Chemistry 2024 Article PeerReviewed text en http://ir.unimas.my/id/eprint/46639/1/Unveiling%20the%20synergistic%20effect.pdf Murtala, Namakka and Md Rezaur, Rahman and Khairul Anwar, Mohamad Said and Kuok, King Kuok and Fahmi Asyadi, Md Yusof and Muneera S. M., Al-Saleem and Jehan Y., Al-Humaidi and Mohammed M., Rahman (2024) Unveiling the synergistic effect of an nZVI–SiO2–TiO2 nanocomposite for the remediation of dye contaminated wastewater†. Materials Advances. pp. 1-22. ISSN 2633-5409 https://pubs.rsc.org/en/Content/ArticleLanding/2024/MA/D4MA00853G DOI: 10.1039/d4ma00853g
institution	Universiti Malaysia Sarawak
building	Centre for Academic Information Services (CAIS)
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Sarawak
content_source	UNIMAS Institutional Repository
url_provider	http://ir.unimas.my/
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Murtala, Namakka Md Rezaur, Rahman Khairul Anwar, Mohamad Said Kuok, King Kuok Fahmi Asyadi, Md Yusof Muneera S. M., Al-Saleem Jehan Y., Al-Humaidi Mohammed M., Rahman Unveiling the synergistic effect of an nZVI–SiO2–TiO2 nanocomposite for the remediation of dye contaminated wastewater†
description	Water contamination and scarcity pose critical global challenges. Existing water remediation technologies such as membrane technologies lack hydrophilic surface properties, prompting the need for novel, highly efficient supportive materials. Photocatalysis emerges as a promising solution for degrading organic pollutants in wastewater. However, existing photocatalysts such as titanium dioxide (TiO2) suffer from rapid recombination of photogenerated charge carriers and lower catalytic activity, hindering performance. Herein, a novel, high sorption capacity nZVI–SiO2–TiO2 nanocomposite material was synthesized via a combined chemical reduction approach. The influence of synthesis pH and the synergistic effects of nZVI, SiO2, and TiO2 on the physicochemical properties and overall performance of the nZVI–SiO2–TiO2 nanocomposite were investigated. Three sets of nZVI–SiO2–TiO2 nanocomposites were synthesized by varying synthesis pH from 2 to 4. MB dye degradation experiments and thermal analysis revealed that the nZVI– SiO2–TiO2 nanocomposite synthesized under pH 2 synthesis conditions exhibited the fastest dye degradation rate, highest removal efficiency (100%), and thermal stability. Characterization techniques, including FTIR, EDS (energy dispersive X-ray spectroscopy), SEM, BET (Brunauer–Emmett–Teller), XRD, TGA (thermogravimetric analysis), and DSC (differential scanning calorimetry), revealed that lower nZVI–SiO2–TiO2 synthesis pH enhanced the material’s specific surface area, crystallinity, and the interfacial interactions of nZVI, SiO2, and TiO2 components in the nanocomposite. The reusability test showed 490% efficiency after 5 successive cycles. The sorption mechanism and methylene blue (MB) dye speciation test corroborated the synergistic adsorption and reduction potential of nZVI–SiO2–TiO2 functional materials with 100% mineralized methylene blue (MB+ species) at MB dye solution pH above 6.0. After economic considerations, it is believed that the exceptional adsorption and recycling abilities of the novel nZVI–SiO2–TiO2 material, coupled with its thermal stability, could counterbalance its upfront expenses, potentially making it a feasible choice for wastewater treatment applications.
format	Article
author	Murtala, Namakka Md Rezaur, Rahman Khairul Anwar, Mohamad Said Kuok, King Kuok Fahmi Asyadi, Md Yusof Muneera S. M., Al-Saleem Jehan Y., Al-Humaidi Mohammed M., Rahman
author_facet	Murtala, Namakka Md Rezaur, Rahman Khairul Anwar, Mohamad Said Kuok, King Kuok Fahmi Asyadi, Md Yusof Muneera S. M., Al-Saleem Jehan Y., Al-Humaidi Mohammed M., Rahman
author_sort	Murtala, Namakka
title	Unveiling the synergistic effect of an nZVI–SiO2–TiO2 nanocomposite for the remediation of dye contaminated wastewater†
title_short	Unveiling the synergistic effect of an nZVI–SiO2–TiO2 nanocomposite for the remediation of dye contaminated wastewater†
title_full	Unveiling the synergistic effect of an nZVI–SiO2–TiO2 nanocomposite for the remediation of dye contaminated wastewater†
title_fullStr	Unveiling the synergistic effect of an nZVI–SiO2–TiO2 nanocomposite for the remediation of dye contaminated wastewater†
title_full_unstemmed	Unveiling the synergistic effect of an nZVI–SiO2–TiO2 nanocomposite for the remediation of dye contaminated wastewater†
title_sort	unveiling the synergistic effect of an nzvi–sio2–tio2 nanocomposite for the remediation of dye contaminated wastewater†
publisher	The Royal Society of Chemistry
publishDate	2024
url	http://ir.unimas.my/id/eprint/46639/1/Unveiling%20the%20synergistic%20effect.pdf http://ir.unimas.my/id/eprint/46639/ https://pubs.rsc.org/en/Content/ArticleLanding/2024/MA/D4MA00853G
_version_	1817848739387146240
score	13.222552

Unveiling the synergistic effect of an nZVI–SiO2–TiO2 nanocomposite for the remediation of dye contaminated wastewater†

Similar Items