From green remediation to polymer hybrid fabrication with improved optical band gaps

The present work proposed a novel approach for transferring high-risk heavy metals tometal complexes via green chemistry remediation. The method of remediation of heavy metals developed in the present work is a great challenge for global environmental sciences and engineering because it is a totally...

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Main Authors:	Brza, Mohamad A., Aziz, Shujahadeen, Anuar, Hazleen, Al Hazza, Muataz Hazza Faizi
Format:	Article
Language:	English English English
Published:	MDPI AG 2019
Subjects:	TS Manufactures
Online Access:	http://irep.iium.edu.my/79678/ http://irep.iium.edu.my/79678/ http://irep.iium.edu.my/79678/ http://irep.iium.edu.my/79678/1/79678_From%20Green%20Remediation.pdf http://irep.iium.edu.my/79678/2/79678_From%20Green%20Remediation_SCOPUS.pdf http://irep.iium.edu.my/79678/3/79678_From%20Green%20Remediation_WOS.pdf

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spelling	iium-796782020-03-19T16:05:47Z http://irep.iium.edu.my/79678/ From green remediation to polymer hybrid fabrication with improved optical band gaps Brza, Mohamad A. Aziz, Shujahadeen Anuar, Hazleen Al Hazza, Muataz Hazza Faizi TS Manufactures The present work proposed a novel approach for transferring high-risk heavy metals tometal complexes via green chemistry remediation. The method of remediation of heavy metals developed in the present work is a great challenge for global environmental sciences and engineering because it is a totally environmentally friendly procedure in which black tea extract solution is used. The FTIR study indicates that black tea contains enough functional groups (OH and NH), polyphenols and conjugated double bonds. The synthesis of copper complex was confirmed by the UV-vis, XRD and FTIR spectroscopic studies. The XRD and FTIR analysis reveals the formation of complexation between Cu metal complexes and Poly (Vinyl Alcohol) (PVA) host matrix. The study of optical parameters indicates that PVA-based hybrids exhibit a small optical band gap, which is close to inorganic-based materials. It was noted that the absorption edge shifted to lower photon energy. When Cu metal complexes were added to PVA polymer, the refractive index was significantly tuned. The band gap shifts from 6.2 eV to 1.4 eV for PVA incorporated with 45 mL of Cu metal complexes. The nature of the electronic transition in hybrid materials was examined based on the Taucs model, while a close inspection of the optical dielectric loss was also performed in order to estimate the optical band gap. The obtained band gaps of the present work reveal that polymer hybrids with sufficient film-forming capability could be useful to overcome the drawbacks associated with conjugated polymers. Based on the XRD results and band gap values, the structure-property relationships were discussed in detail. © 2019 by the authors. Licensee MDPI, Basel, Switzerland. MDPI AG 2019-08-02 Article PeerReviewed application/pdf en http://irep.iium.edu.my/79678/1/79678_From%20Green%20Remediation.pdf application/pdf en http://irep.iium.edu.my/79678/2/79678_From%20Green%20Remediation_SCOPUS.pdf application/pdf en http://irep.iium.edu.my/79678/3/79678_From%20Green%20Remediation_WOS.pdf Brza, Mohamad A. and Aziz, Shujahadeen and Anuar, Hazleen and Al Hazza, Muataz Hazza Faizi (2019) From green remediation to polymer hybrid fabrication with improved optical band gaps. International Journal of Molecular Sciences, 20 (16). pp. 1-23. ISSN 1661-6596 E-ISSN 1422-0067 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6721056/pdf/ijms-20-03910.pdf 10.3390/ijms20163910
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	TS Manufactures
spellingShingle	TS Manufactures Brza, Mohamad A. Aziz, Shujahadeen Anuar, Hazleen Al Hazza, Muataz Hazza Faizi From green remediation to polymer hybrid fabrication with improved optical band gaps
description	The present work proposed a novel approach for transferring high-risk heavy metals tometal complexes via green chemistry remediation. The method of remediation of heavy metals developed in the present work is a great challenge for global environmental sciences and engineering because it is a totally environmentally friendly procedure in which black tea extract solution is used. The FTIR study indicates that black tea contains enough functional groups (OH and NH), polyphenols and conjugated double bonds. The synthesis of copper complex was confirmed by the UV-vis, XRD and FTIR spectroscopic studies. The XRD and FTIR analysis reveals the formation of complexation between Cu metal complexes and Poly (Vinyl Alcohol) (PVA) host matrix. The study of optical parameters indicates that PVA-based hybrids exhibit a small optical band gap, which is close to inorganic-based materials. It was noted that the absorption edge shifted to lower photon energy. When Cu metal complexes were added to PVA polymer, the refractive index was significantly tuned. The band gap shifts from 6.2 eV to 1.4 eV for PVA incorporated with 45 mL of Cu metal complexes. The nature of the electronic transition in hybrid materials was examined based on the Taucs model, while a close inspection of the optical dielectric loss was also performed in order to estimate the optical band gap. The obtained band gaps of the present work reveal that polymer hybrids with sufficient film-forming capability could be useful to overcome the drawbacks associated with conjugated polymers. Based on the XRD results and band gap values, the structure-property relationships were discussed in detail. © 2019 by the authors. Licensee MDPI, Basel, Switzerland.
format	Article
author	Brza, Mohamad A. Aziz, Shujahadeen Anuar, Hazleen Al Hazza, Muataz Hazza Faizi
author_facet	Brza, Mohamad A. Aziz, Shujahadeen Anuar, Hazleen Al Hazza, Muataz Hazza Faizi
author_sort	Brza, Mohamad A.
title	From green remediation to polymer hybrid fabrication with improved optical band gaps
title_short	From green remediation to polymer hybrid fabrication with improved optical band gaps
title_full	From green remediation to polymer hybrid fabrication with improved optical band gaps
title_fullStr	From green remediation to polymer hybrid fabrication with improved optical band gaps
title_full_unstemmed	From green remediation to polymer hybrid fabrication with improved optical band gaps
title_sort	from green remediation to polymer hybrid fabrication with improved optical band gaps
publisher	MDPI AG
publishDate	2019
url	http://irep.iium.edu.my/79678/ http://irep.iium.edu.my/79678/ http://irep.iium.edu.my/79678/ http://irep.iium.edu.my/79678/1/79678_From%20Green%20Remediation.pdf http://irep.iium.edu.my/79678/2/79678_From%20Green%20Remediation_SCOPUS.pdf http://irep.iium.edu.my/79678/3/79678_From%20Green%20Remediation_WOS.pdf
first_indexed	2023-09-18T21:51:41Z
last_indexed	2023-09-18T21:51:41Z
_version_	1777413810889424896

From green remediation to polymer hybrid fabrication with improved optical band gaps

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