From Green Remediation to Polymer Hybrid Fabrication with Improved Optical Band Gaps
| العنوان: | From Green Remediation to Polymer Hybrid Fabrication with Improved Optical Band Gaps |
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| المؤلفون: | Mohamad A. Brza, Shujahadeen B. Aziz, Hazleen Anuar, Muataz Hazza Faizi Al Hazza |
| المصدر: | International Journal of Molecular Sciences, Vol 20, Iss 16, p 3910 (2019) International Journal of Molecular Sciences Volume 20 Issue 16 |
| بيانات النشر: | MDPI AG, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | polymer hybrid, 02 engineering and technology, 01 natural sciences, lcsh:Chemistry, chemistry.chemical_compound, X-Ray Diffraction, Coordination Complexes, Spectroscopy, Fourier Transform Infrared, lcsh:QH301-705.5, Spectroscopy, chemistry.chemical_classification, UV-vis study, General Medicine, Polymer, 021001 nanoscience & nanotechnology, XRD study, Computer Science Applications, FTIR study, 0210 nano-technology, Hybrid material, optical properties, Vinyl alcohol, Band gap, Conjugated system, extract tea solution, 010402 general chemistry, Article, Catalysis, Molecular electronic transition, Inorganic Chemistry, Physical and Theoretical Chemistry, Fourier transform infrared spectroscopy, green remediation, Molecular Biology, copper complex, Tea, Plant Extracts, Organic Chemistry, Polyphenols, Green Chemistry Technology, 0104 chemical sciences, polyphenol, chemistry, Absorption edge, Chemical engineering, lcsh:Biology (General), lcsh:QD1-999, Polyvinyl Alcohol, Spectrophotometry, Ultraviolet, Copper |
| الوصف: | 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. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 1422-0067 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dfe2f43d844708b36781ecc52ef028e9 https://www.mdpi.com/1422-0067/20/16/3910 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....dfe2f43d844708b36781ecc52ef028e9 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14220067 |
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