In situ synthesis and immobilization of CuO nanoparticles in alginate-poly(amido amine) nanogels for photocatalytic applications
Herein, we report a feasible approach for preparation of crosslinked alginate (Alg) and poly(amido amine) (PAMAM) nanogels (Alg-PAMAM NGs), using a water-in-oil-in-water (w/o/w) double emulsion route, via strong electrostatic interactions between anionic groups coming from alginate and previously in...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-06-01
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| Series: | Materials Letters: X |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S259015082200028X |
| _version_ | 1828805578736009216 |
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| author | A. Córdoba B. Durán S. Bonardd D. Diaz Diaz A. Leiva C. Saldías |
| author_facet | A. Córdoba B. Durán S. Bonardd D. Diaz Diaz A. Leiva C. Saldías |
| author_sort | A. Córdoba |
| collection | DOAJ |
| description | Herein, we report a feasible approach for preparation of crosslinked alginate (Alg) and poly(amido amine) (PAMAM) nanogels (Alg-PAMAM NGs), using a water-in-oil-in-water (w/o/w) double emulsion route, via strong electrostatic interactions between anionic groups coming from alginate and previously incorporated Cu2+ ions. CuO nanoparticles (NPs) with average diameter about 65 nm were in situ obtained into Alg/PAMAM nanogels by treatment of embedded Cu2+ ions in NGs with NaBH4 at 25 °C under air atmosphere. The prepared Alg-PAMAM and Alg-PAMAM-CuO NGs were characterized using FT-IR and UV–visible spectroscopy, as well as scanning transmission electron microscopy (STEM). The presence of PAMAM dendrimers helped both to obtain structurally compact nanogels and an adequate stabilization of CuO NPs. Finally, the photocatalytic performance of the Alg-PAMAM-CuO NGs was tested via the decomposition of methyl orange in aqueous solution, under visible light irradiation. |
| first_indexed | 2024-12-12T07:57:23Z |
| format | Article |
| id | doaj.art-0648b2b3529b4dc2987a5843ed3f42db |
| institution | Directory Open Access Journal |
| issn | 2590-1508 |
| language | English |
| last_indexed | 2024-12-12T07:57:23Z |
| publishDate | 2022-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials Letters: X |
| spelling | doaj.art-0648b2b3529b4dc2987a5843ed3f42db2022-12-22T00:32:16ZengElsevierMaterials Letters: X2590-15082022-06-0114100148In situ synthesis and immobilization of CuO nanoparticles in alginate-poly(amido amine) nanogels for photocatalytic applicationsA. Córdoba0B. Durán1S. Bonardd2D. Diaz Diaz3A. Leiva4C. Saldías5Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Macul 7820436 Santiago, ChileDepartamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Macul 7820436 Santiago, ChileDepartamento de Química Orgánica, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez S/N, 38206 La Laguna, Tenerife, SpainDepartamento de Química Orgánica, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez S/N, 38206 La Laguna, Tenerife, Spain; Instituto Universitario de Bio-Orgánica Antonio González, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain; Institut für Organische Chemie, Universität Regensburg, Universitätsstr. 31, 93053 Regensburg, GermanyDepartamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Macul 7820436 Santiago, ChileDepartamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Macul 7820436 Santiago, Chile; Corresponding autor.Herein, we report a feasible approach for preparation of crosslinked alginate (Alg) and poly(amido amine) (PAMAM) nanogels (Alg-PAMAM NGs), using a water-in-oil-in-water (w/o/w) double emulsion route, via strong electrostatic interactions between anionic groups coming from alginate and previously incorporated Cu2+ ions. CuO nanoparticles (NPs) with average diameter about 65 nm were in situ obtained into Alg/PAMAM nanogels by treatment of embedded Cu2+ ions in NGs with NaBH4 at 25 °C under air atmosphere. The prepared Alg-PAMAM and Alg-PAMAM-CuO NGs were characterized using FT-IR and UV–visible spectroscopy, as well as scanning transmission electron microscopy (STEM). The presence of PAMAM dendrimers helped both to obtain structurally compact nanogels and an adequate stabilization of CuO NPs. Finally, the photocatalytic performance of the Alg-PAMAM-CuO NGs was tested via the decomposition of methyl orange in aqueous solution, under visible light irradiation.http://www.sciencedirect.com/science/article/pii/S259015082200028XNanogelsAlginatePhotocatalytic activity |
| spellingShingle | A. Córdoba B. Durán S. Bonardd D. Diaz Diaz A. Leiva C. Saldías In situ synthesis and immobilization of CuO nanoparticles in alginate-poly(amido amine) nanogels for photocatalytic applications Materials Letters: X Nanogels Alginate Photocatalytic activity |
| title | In situ synthesis and immobilization of CuO nanoparticles in alginate-poly(amido amine) nanogels for photocatalytic applications |
| title_full | In situ synthesis and immobilization of CuO nanoparticles in alginate-poly(amido amine) nanogels for photocatalytic applications |
| title_fullStr | In situ synthesis and immobilization of CuO nanoparticles in alginate-poly(amido amine) nanogels for photocatalytic applications |
| title_full_unstemmed | In situ synthesis and immobilization of CuO nanoparticles in alginate-poly(amido amine) nanogels for photocatalytic applications |
| title_short | In situ synthesis and immobilization of CuO nanoparticles in alginate-poly(amido amine) nanogels for photocatalytic applications |
| title_sort | in situ synthesis and immobilization of cuo nanoparticles in alginate poly amido amine nanogels for photocatalytic applications |
| topic | Nanogels Alginate Photocatalytic activity |
| url | http://www.sciencedirect.com/science/article/pii/S259015082200028X |
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