Synthesis of SiO2/Fe3O4 magnetic nanoparticles as a nano-coagulant/flocculant for removal of calcium fluoride in semiconductor wastewater

In this study, the novel SiO2/Fe3O4 magnetic nanoparticles (MNPs) were synthesised and used as a nano-coagulant/flocculant for removal of suspended CaF2 in semiconductor wastewater. Different batches of SiO2/Fe3O4 MNPs were synthesised using the sol-gel method using various dosages of tetraethyl ort...

Full description

Saved in:
Bibliographic Details
Main Author: Yao, YuPeng
Other Authors: Darren Sun Delai
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2022
Subjects:
Online Access:https://hdl.handle.net/10356/163549
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-163549
record_format dspace
spelling sg-ntu-dr.10356-1635492022-12-09T01:22:57Z Synthesis of SiO2/Fe3O4 magnetic nanoparticles as a nano-coagulant/flocculant for removal of calcium fluoride in semiconductor wastewater Yao, YuPeng Darren Sun Delai School of Civil and Environmental Engineering DDSun@ntu.edu.sg Engineering::Environmental engineering::Water treatment In this study, the novel SiO2/Fe3O4 magnetic nanoparticles (MNPs) were synthesised and used as a nano-coagulant/flocculant for removal of suspended CaF2 in semiconductor wastewater. Different batches of SiO2/Fe3O4 MNPs were synthesised using the sol-gel method using various dosages of tetraethyl orthosilicate (TEOS) and FESEM results revealed that the TEOS dosage has a significant impact on the particle size of the synthesised SiO2/Fe3O4 MNPs. In particular, the batch of SiO2/Fe3O4 MNPs synthesised using 2 mL of TEOS has an average particle size of 190 nm, and when used as a nano-coagulant/flocculant, it was able to effectively remove 99 % of total suspended solids (TSS) from semiconductor wastewater. In addition, the SiO2/Fe3O4 MNPs were further characterized using energy dispersive X-ray (EDX), transmission electron detector (TED), and X-ray diffraction (XRD) analysis. Considering the promising 99 % TSS removal synthesised SiO2/Fe3O4 MNPs and its superparamagnetic properties, the SiO2/Fe3O4 MNPs may be used as a novel nano-coagulant/flocculant for the removal of suspended CaF2 in semiconductor wastewater. Bachelor of Engineering (Civil) 2022-12-09T01:22:56Z 2022-12-09T01:22:56Z 2022 Final Year Project (FYP) Yao, Y. (2022). Synthesis of SiO2/Fe3O4 magnetic nanoparticles as a nano-coagulant/flocculant for removal of calcium fluoride in semiconductor wastewater. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/163549 https://hdl.handle.net/10356/163549 en EN-78AB application/pdf Nanyang Technological University
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Environmental engineering::Water treatment
spellingShingle Engineering::Environmental engineering::Water treatment
Yao, YuPeng
Synthesis of SiO2/Fe3O4 magnetic nanoparticles as a nano-coagulant/flocculant for removal of calcium fluoride in semiconductor wastewater
description In this study, the novel SiO2/Fe3O4 magnetic nanoparticles (MNPs) were synthesised and used as a nano-coagulant/flocculant for removal of suspended CaF2 in semiconductor wastewater. Different batches of SiO2/Fe3O4 MNPs were synthesised using the sol-gel method using various dosages of tetraethyl orthosilicate (TEOS) and FESEM results revealed that the TEOS dosage has a significant impact on the particle size of the synthesised SiO2/Fe3O4 MNPs. In particular, the batch of SiO2/Fe3O4 MNPs synthesised using 2 mL of TEOS has an average particle size of 190 nm, and when used as a nano-coagulant/flocculant, it was able to effectively remove 99 % of total suspended solids (TSS) from semiconductor wastewater. In addition, the SiO2/Fe3O4 MNPs were further characterized using energy dispersive X-ray (EDX), transmission electron detector (TED), and X-ray diffraction (XRD) analysis. Considering the promising 99 % TSS removal synthesised SiO2/Fe3O4 MNPs and its superparamagnetic properties, the SiO2/Fe3O4 MNPs may be used as a novel nano-coagulant/flocculant for the removal of suspended CaF2 in semiconductor wastewater.
author2 Darren Sun Delai
author_facet Darren Sun Delai
Yao, YuPeng
format Final Year Project
author Yao, YuPeng
author_sort Yao, YuPeng
title Synthesis of SiO2/Fe3O4 magnetic nanoparticles as a nano-coagulant/flocculant for removal of calcium fluoride in semiconductor wastewater
title_short Synthesis of SiO2/Fe3O4 magnetic nanoparticles as a nano-coagulant/flocculant for removal of calcium fluoride in semiconductor wastewater
title_full Synthesis of SiO2/Fe3O4 magnetic nanoparticles as a nano-coagulant/flocculant for removal of calcium fluoride in semiconductor wastewater
title_fullStr Synthesis of SiO2/Fe3O4 magnetic nanoparticles as a nano-coagulant/flocculant for removal of calcium fluoride in semiconductor wastewater
title_full_unstemmed Synthesis of SiO2/Fe3O4 magnetic nanoparticles as a nano-coagulant/flocculant for removal of calcium fluoride in semiconductor wastewater
title_sort synthesis of sio2/fe3o4 magnetic nanoparticles as a nano-coagulant/flocculant for removal of calcium fluoride in semiconductor wastewater
publisher Nanyang Technological University
publishDate 2022
url https://hdl.handle.net/10356/163549
_version_ 1753801155545137152