Nitrates Removal from Simulated Groundwater Using Nano Zerovalent Iron Supported by Polystyrenic Gel
The main objectives of this present paper were to indicate the immobilization of nano zerovalent iron (nZVI) onto a polymeric material (Purolite A400) and the synthesis of the polymeric material (A400-nZVI) through sodium borohydride (NaBH<sub>4</sub>) reduction. The obtained polymeric m...
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MDPI AG
2022-12-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/15/1/61 |
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| author | Oanamari Daniela Orbuleţ Annette Madelene Dăncilă Simona Căprărescu Cristina Modrogan Violeta Purcar |
| author_facet | Oanamari Daniela Orbuleţ Annette Madelene Dăncilă Simona Căprărescu Cristina Modrogan Violeta Purcar |
| author_sort | Oanamari Daniela Orbuleţ |
| collection | DOAJ |
| description | The main objectives of this present paper were to indicate the immobilization of nano zerovalent iron (nZVI) onto a polymeric material (Purolite A400) and the synthesis of the polymeric material (A400-nZVI) through sodium borohydride (NaBH<sub>4</sub>) reduction. The obtained polymeric material (A400-nZVI) was used for the nitrate ions removal from a simulated groundwater at different conditions. The polymeric materials, without and with nano zerovalent iron (A400 and A400-nZVI), were characterized trough the FTIR, SEM-EDAX, XRD, and TGA analysis. The analysis confirmed the presence of nano zerovalent iron (nZVI) onto the polymeric material (A400). The adsorption capacity of A400-nZVI, used as polymeric adsorbent, was evaluated by kinetic and thermodynamic studies. The obtained experimental results indicated that the nitrate ions reduction was fitted well by models: pseudo-second-order kinetic and Freundlich isotherm. According to the kinetic model results, a reaction mechanism could exist in the stage of reactions. The higher value of removal nitrate (>80%) was obtained under acidic condition. The results indicated that the obtained polymeric material (A400-nZVI) can be considered as a potential polymeric adsorbent for different pollutants from groundwater and wastewater. |
| first_indexed | 2024-03-09T03:26:56Z |
| format | Article |
| id | doaj.art-f4a98fe244ac4b2a83f0ceec69129bf4 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T03:26:56Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-f4a98fe244ac4b2a83f0ceec69129bf42023-12-03T15:01:13ZengMDPI AGPolymers2073-43602022-12-011516110.3390/polym15010061Nitrates Removal from Simulated Groundwater Using Nano Zerovalent Iron Supported by Polystyrenic GelOanamari Daniela Orbuleţ0Annette Madelene Dăncilă1Simona Căprărescu2Cristina Modrogan3Violeta Purcar4Analytical Chemistry and Environmental Engineering Department, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, Gheorghe Polizu Street, No. 1-7, 011061 Bucharest, RomaniaAnalytical Chemistry and Environmental Engineering Department, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, Gheorghe Polizu Street, No. 1-7, 011061 Bucharest, RomaniaInorganic Chemistry, Physical Chemistry and Electrochemistry Department, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, Gheorghe Polizu Street, No. 1-7, 011061 Bucharest, RomaniaAnalytical Chemistry and Environmental Engineering Department, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, Gheorghe Polizu Street, No. 1-7, 011061 Bucharest, RomaniaNational Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independentei No. 202, 060021 Bucharest, RomaniaThe main objectives of this present paper were to indicate the immobilization of nano zerovalent iron (nZVI) onto a polymeric material (Purolite A400) and the synthesis of the polymeric material (A400-nZVI) through sodium borohydride (NaBH<sub>4</sub>) reduction. The obtained polymeric material (A400-nZVI) was used for the nitrate ions removal from a simulated groundwater at different conditions. The polymeric materials, without and with nano zerovalent iron (A400 and A400-nZVI), were characterized trough the FTIR, SEM-EDAX, XRD, and TGA analysis. The analysis confirmed the presence of nano zerovalent iron (nZVI) onto the polymeric material (A400). The adsorption capacity of A400-nZVI, used as polymeric adsorbent, was evaluated by kinetic and thermodynamic studies. The obtained experimental results indicated that the nitrate ions reduction was fitted well by models: pseudo-second-order kinetic and Freundlich isotherm. According to the kinetic model results, a reaction mechanism could exist in the stage of reactions. The higher value of removal nitrate (>80%) was obtained under acidic condition. The results indicated that the obtained polymeric material (A400-nZVI) can be considered as a potential polymeric adsorbent for different pollutants from groundwater and wastewater.https://www.mdpi.com/2073-4360/15/1/61nano zerovalent ironPurolite A400nitrategroundwateradsorption studiesadsorption mechanism |
| spellingShingle | Oanamari Daniela Orbuleţ Annette Madelene Dăncilă Simona Căprărescu Cristina Modrogan Violeta Purcar Nitrates Removal from Simulated Groundwater Using Nano Zerovalent Iron Supported by Polystyrenic Gel Polymers nano zerovalent iron Purolite A400 nitrate groundwater adsorption studies adsorption mechanism |
| title | Nitrates Removal from Simulated Groundwater Using Nano Zerovalent Iron Supported by Polystyrenic Gel |
| title_full | Nitrates Removal from Simulated Groundwater Using Nano Zerovalent Iron Supported by Polystyrenic Gel |
| title_fullStr | Nitrates Removal from Simulated Groundwater Using Nano Zerovalent Iron Supported by Polystyrenic Gel |
| title_full_unstemmed | Nitrates Removal from Simulated Groundwater Using Nano Zerovalent Iron Supported by Polystyrenic Gel |
| title_short | Nitrates Removal from Simulated Groundwater Using Nano Zerovalent Iron Supported by Polystyrenic Gel |
| title_sort | nitrates removal from simulated groundwater using nano zerovalent iron supported by polystyrenic gel |
| topic | nano zerovalent iron Purolite A400 nitrate groundwater adsorption studies adsorption mechanism |
| url | https://www.mdpi.com/2073-4360/15/1/61 |
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