Design of AgNPs -Base Starch/PEG-Poly (Acrylic Acid) Hydrogel for Removal of Mercury (II)
| Autor: | Eskandar Alipour, Atefeh Saberi, Mohammad Sadeghi |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Environmental Engineering
Aqueous solution Nanocomposite Materials science Polymers and Plastics Starch 02 engineering and technology 021001 nanoscience & nanotechnology chemistry.chemical_compound Adsorption 020401 chemical engineering chemistry Monolayer PEG ratio Self-healing hydrogels Materials Chemistry 0204 chemical engineering 0210 nano-technology Nuclear chemistry Acrylic acid |
| Zdroj: | Journal of Polymers and the Environment. 28:906-917 |
| ISSN: | 1572-8919 1566-2543 |
| DOI: | 10.1007/s10924-020-01651-9 |
| Popis: | In the present study, we introduce the formation of Starch/PEG-poly (acrylic acid) hydrogel (St-PEG-AcAH) and nanocomposite of AgNPs-base St-PEG-AcAH (AgNPs-St-PEG-AcANCH) free radical method, and their characterization using analytical techniques of FT-IR, TEM, SEM, EDX, AFM, XRD, TGA/DTG. The thermodynamic parameters and application of prepared hydrogels was investigated for the removal of Hg2+ ions in water and the various solvents such as ethanol-water (30:70), ethanol-water (50:50), 2-propanol–water (40:60), respectively. The maximum adsorption capacity of Hg2+ ions for St-PEG-AcAH and AgNPs-St-PEG-AcANCH was achieved 158.21 mg/g and 182.53 mg/g in pH 7 and 6 in aqueous solutions, respectively. On the other hand, the results of adsorption isotherms revealed that adsorption process for both adsorbents occurred as a homogenous and monolayer process with L-shape isotherm. Furthermore, investigating the bioactivity of bioadsorbents, the good antimicrobial efficiency of the prepared samples was confirmed on E. coli bacteria. |
| Databáze: | OpenAIRE |
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