Graphene-based catalyst for waater treatment

In recent years, nanotechnology has drawn widespread interest within the water industry due to water scarcity. Carboxylated Graphene Oxide (GO-COOH), functionalized with Copper (II) Sulfide (CuS) nanoparticles, was successfully synthesized through the combination of the Hummers method for graphite o...

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Main Author: Chew, Nick Guan Pin
Other Authors: School of Civil and Environmental Engineering
Format: Final Year Project
Language:English
Published: 2014
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Online Access:http://hdl.handle.net/10356/60738
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-607382023-03-03T17:09:59Z Graphene-based catalyst for waater treatment Chew, Nick Guan Pin School of Civil and Environmental Engineering Yan Xiaoli DRNTU::Engineering::Environmental engineering In recent years, nanotechnology has drawn widespread interest within the water industry due to water scarcity. Carboxylated Graphene Oxide (GO-COOH), functionalized with Copper (II) Sulfide (CuS) nanoparticles, was successfully synthesized through the combination of the Hummers method for graphite oxidation coupled with a chemical reaction process with Chloroacetic Acid, Dimethyl Sulfoxide (DMSO), and Thioacetamide. This self-assembled Copper (II) Sulfide-Carboxylated Graphene Oxide (GO-COOH-CuS) catalyst could be dispersed in water due to its enhanced hydrophilicity and stability in aqueous solutions. This is possible because of the presence of carboxyl functionalities, which are excellent reactive sites for the anchoring of nanoparticles. The effective anchoring of CuS nanoparticles on GO-COOH sheets was verified using four characterization techniques namely Fourier Transform Infrared Spectroscopy (FTIR), Transmission Electron Microscopy (TEM), X-ray Powder Diffraction (XRD), and Thermogravimetric Analysis (TGA). The significant increase in photocatalytic activity was validated by the degradation of Rhodamine B (RhB) dye under visible light irradiation and was attributed to the effective anti-recombination and absorption of RhB onto GO-COOH, which was vindicated by the UV-vis spectra of GO-COOH-CuS. This as-prepared novel hybrid material can be potentially used for water treatment for the removal of recalcitrant organic pollutants. For future research purposes, the antimicrobial properties of this catalyst and the use of Nitrogen-doped (N-doped) graphene could be investigated. Bachelor of Engineering (Environmental Engineering) 2014-05-29T08:09:04Z 2014-05-29T08:09:04Z 2014 2014 Final Year Project (FYP) http://hdl.handle.net/10356/60738 en Nanyang Technological University 44 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Environmental engineering
spellingShingle DRNTU::Engineering::Environmental engineering
Chew, Nick Guan Pin
Graphene-based catalyst for waater treatment
description In recent years, nanotechnology has drawn widespread interest within the water industry due to water scarcity. Carboxylated Graphene Oxide (GO-COOH), functionalized with Copper (II) Sulfide (CuS) nanoparticles, was successfully synthesized through the combination of the Hummers method for graphite oxidation coupled with a chemical reaction process with Chloroacetic Acid, Dimethyl Sulfoxide (DMSO), and Thioacetamide. This self-assembled Copper (II) Sulfide-Carboxylated Graphene Oxide (GO-COOH-CuS) catalyst could be dispersed in water due to its enhanced hydrophilicity and stability in aqueous solutions. This is possible because of the presence of carboxyl functionalities, which are excellent reactive sites for the anchoring of nanoparticles. The effective anchoring of CuS nanoparticles on GO-COOH sheets was verified using four characterization techniques namely Fourier Transform Infrared Spectroscopy (FTIR), Transmission Electron Microscopy (TEM), X-ray Powder Diffraction (XRD), and Thermogravimetric Analysis (TGA). The significant increase in photocatalytic activity was validated by the degradation of Rhodamine B (RhB) dye under visible light irradiation and was attributed to the effective anti-recombination and absorption of RhB onto GO-COOH, which was vindicated by the UV-vis spectra of GO-COOH-CuS. This as-prepared novel hybrid material can be potentially used for water treatment for the removal of recalcitrant organic pollutants. For future research purposes, the antimicrobial properties of this catalyst and the use of Nitrogen-doped (N-doped) graphene could be investigated.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Chew, Nick Guan Pin
format Final Year Project
author Chew, Nick Guan Pin
author_sort Chew, Nick Guan Pin
title Graphene-based catalyst for waater treatment
title_short Graphene-based catalyst for waater treatment
title_full Graphene-based catalyst for waater treatment
title_fullStr Graphene-based catalyst for waater treatment
title_full_unstemmed Graphene-based catalyst for waater treatment
title_sort graphene-based catalyst for waater treatment
publishDate 2014
url http://hdl.handle.net/10356/60738
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