Degradation of DDT by gold nanoparticles synthesised using Lawsonia inermis for environmental safety
Metallic gold nanoparticles (AuNPs) were prepared and stabilised with henna (Lawsonia inermis) extract. The synthesis of AuNPs was characterised by ultraviolet-visible (UV-Vis) spectrophotometry, transmission electron microscopy (TEM), scanning electron microscopy (SEM) coupled with energy dispersiv...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2018-09-01
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| Series: | Biotechnology & Biotechnological Equipment |
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| Online Access: | http://dx.doi.org/10.1080/13102818.2018.1502051 |
| _version_ | 1818031662052671488 |
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| author | Abeer Ramadan Abd El-Aziz Monira Rashed Al-Othman Mohamed Abubakr Mahmoud |
| author_facet | Abeer Ramadan Abd El-Aziz Monira Rashed Al-Othman Mohamed Abubakr Mahmoud |
| author_sort | Abeer Ramadan Abd El-Aziz |
| collection | DOAJ |
| description | Metallic gold nanoparticles (AuNPs) were prepared and stabilised with henna (Lawsonia inermis) extract. The synthesis of AuNPs was characterised by ultraviolet-visible (UV-Vis) spectrophotometry, transmission electron microscopy (TEM), scanning electron microscopy (SEM) coupled with energy dispersive X-ray spectroscopy (EDS), dynamic light scattering and Fourier-transform infrared spectroscopy (FTIR). This study also investigated the degradation of dichlorodiphenyltrichloroethane (DDT) using AuNPs. The initial concentration of DDT was either 10 or 20 mg/L. In our study, the highest percentage of DDT degradation was obtained when the initial DDT concentration was 20 mg/L. It reached a maximum of 64.1% at 10 mg/L and 77.4% at 20 mg/L after 72 h. DDT degradation was determined using UV-Vis spectrophotometry, FTIR and gas chromatography-mass spectrometry (GC/MS). The GC/MS spectra displayed five peaks related to the DDT degradation products: DDT, dichlorodiphenyldichloroethene (DDE), dichlorodiphenyldichloroethane (DDD), dichlorodiphenylmethane (DDM) and dichlorophenylethane (DCE). Our results indicate that AuNPs had high degradation rates for DDT, which implies that they have potential applications as metal nanoparticles for environmental clean-up. |
| first_indexed | 2024-12-10T05:55:02Z |
| format | Article |
| id | doaj.art-f175a7a2d7f3473394593eee4b177a7e |
| institution | Directory Open Access Journal |
| issn | 1310-2818 1314-3530 |
| language | English |
| last_indexed | 2024-12-10T05:55:02Z |
| publishDate | 2018-09-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Biotechnology & Biotechnological Equipment |
| spelling | doaj.art-f175a7a2d7f3473394593eee4b177a7e2022-12-22T01:59:57ZengTaylor & Francis GroupBiotechnology & Biotechnological Equipment1310-28181314-35302018-09-013251174118210.1080/13102818.2018.15020511502051Degradation of DDT by gold nanoparticles synthesised using Lawsonia inermis for environmental safetyAbeer Ramadan Abd El-Aziz0Monira Rashed Al-Othman1Mohamed Abubakr Mahmoud2King Saud UniversityKing Saud UniversityAgricultural Research CenterMetallic gold nanoparticles (AuNPs) were prepared and stabilised with henna (Lawsonia inermis) extract. The synthesis of AuNPs was characterised by ultraviolet-visible (UV-Vis) spectrophotometry, transmission electron microscopy (TEM), scanning electron microscopy (SEM) coupled with energy dispersive X-ray spectroscopy (EDS), dynamic light scattering and Fourier-transform infrared spectroscopy (FTIR). This study also investigated the degradation of dichlorodiphenyltrichloroethane (DDT) using AuNPs. The initial concentration of DDT was either 10 or 20 mg/L. In our study, the highest percentage of DDT degradation was obtained when the initial DDT concentration was 20 mg/L. It reached a maximum of 64.1% at 10 mg/L and 77.4% at 20 mg/L after 72 h. DDT degradation was determined using UV-Vis spectrophotometry, FTIR and gas chromatography-mass spectrometry (GC/MS). The GC/MS spectra displayed five peaks related to the DDT degradation products: DDT, dichlorodiphenyldichloroethene (DDE), dichlorodiphenyldichloroethane (DDD), dichlorodiphenylmethane (DDM) and dichlorophenylethane (DCE). Our results indicate that AuNPs had high degradation rates for DDT, which implies that they have potential applications as metal nanoparticles for environmental clean-up.http://dx.doi.org/10.1080/13102818.2018.1502051gold nanoparticlesLawsonia inermissynthesischaracterisationDDT degradation |
| spellingShingle | Abeer Ramadan Abd El-Aziz Monira Rashed Al-Othman Mohamed Abubakr Mahmoud Degradation of DDT by gold nanoparticles synthesised using Lawsonia inermis for environmental safety Biotechnology & Biotechnological Equipment gold nanoparticles Lawsonia inermis synthesis characterisation DDT degradation |
| title | Degradation of DDT by gold nanoparticles synthesised using Lawsonia inermis for environmental safety |
| title_full | Degradation of DDT by gold nanoparticles synthesised using Lawsonia inermis for environmental safety |
| title_fullStr | Degradation of DDT by gold nanoparticles synthesised using Lawsonia inermis for environmental safety |
| title_full_unstemmed | Degradation of DDT by gold nanoparticles synthesised using Lawsonia inermis for environmental safety |
| title_short | Degradation of DDT by gold nanoparticles synthesised using Lawsonia inermis for environmental safety |
| title_sort | degradation of ddt by gold nanoparticles synthesised using lawsonia inermis for environmental safety |
| topic | gold nanoparticles Lawsonia inermis synthesis characterisation DDT degradation |
| url | http://dx.doi.org/10.1080/13102818.2018.1502051 |
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