Room-temperature synthesis of three-dimensional porous ZnO@CuNi hybrid magnetic layers with photoluminescent and photocatalytic properties
A facile synthetic approach to prepare porous ZnO@CuNi hybrid films is presented. Initially, magnetic CuNi porous layers (consisting of phase separated CuNi alloys) are successfully grown by electrodeposition at different current densities using H2 bubbles as a dynamic template to generate the poros...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2016-01-01
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| Series: | Science and Technology of Advanced Materials |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/14686996.2016.1165583 |
| _version_ | 1818438751158796288 |
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| author | Miguel Guerrero Jin Zhang Ainhoa Altube Eva García-Lecina Mònica Roldan Maria Dolors Baró Eva Pellicer Jordi Sort |
| author_facet | Miguel Guerrero Jin Zhang Ainhoa Altube Eva García-Lecina Mònica Roldan Maria Dolors Baró Eva Pellicer Jordi Sort |
| author_sort | Miguel Guerrero |
| collection | DOAJ |
| description | A facile synthetic approach to prepare porous ZnO@CuNi hybrid films is presented. Initially, magnetic CuNi porous layers (consisting of phase separated CuNi alloys) are successfully grown by electrodeposition at different current densities using H2 bubbles as a dynamic template to generate the porosity. The porous CuNi alloys serve as parent scaffolds to be subsequently filled with a solution containing ZnO nanoparticles previously synthesized by sol-gel. The dispersed nanoparticles are deposited dropwise onto the CuNi frameworks and the solvent is left to evaporate while the nanoparticles impregnate the interior of the pores, rendering ZnO-coated CuNi 3D porous structures. No thermal annealing is required to obtain the porous films. The synthesized hybrid porous layers exhibit an interesting combination of tunable ferromagnetic and photoluminescent properties. In addition, the aqueous photocatalytic activity of the composite is studied under UV−visible light irradiation for the degradation of Rhodamine B. The proposed method represents a fast and inexpensive approach towards the implementation of devices based on metal-semiconductor porous systems, avoiding the use of post-synthesis heat treatment steps which could cause deleterious oxidation of the metallic counterpart, as well as collapse of the porous structure and loss of the ferromagnetic properties. |
| first_indexed | 2024-12-14T17:45:32Z |
| format | Article |
| id | doaj.art-eb69aede58b8403e932d9f6e7ca5488b |
| institution | Directory Open Access Journal |
| issn | 1468-6996 1878-5514 |
| language | English |
| last_indexed | 2024-12-14T17:45:32Z |
| publishDate | 2016-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Science and Technology of Advanced Materials |
| spelling | doaj.art-eb69aede58b8403e932d9f6e7ca5488b2022-12-21T22:52:45ZengTaylor & Francis GroupScience and Technology of Advanced Materials1468-69961878-55142016-01-0117117718710.1080/14686996.2016.11655831165583Room-temperature synthesis of three-dimensional porous ZnO@CuNi hybrid magnetic layers with photoluminescent and photocatalytic propertiesMiguel Guerrero0Jin Zhang1Ainhoa Altube2Eva García-Lecina3Mònica Roldan4Maria Dolors Baró5Eva Pellicer6Jordi Sort7Departament de Física, Facultat de Ciències, Universitat Autònoma de BarcelonaDepartament de Física, Facultat de Ciències, Universitat Autònoma de BarcelonaSurfaces Division, IK4-CIDETECSurfaces Division, IK4-CIDETECServei de Microscòpia, Universitat Autònoma de BarcelonaDepartament de Física, Facultat de Ciències, Universitat Autònoma de BarcelonaDepartament de Física, Facultat de Ciències, Universitat Autònoma de BarcelonaInstitució Catalana de Recerca i Estudis Avançats (ICREA) and Departament de Física, Universitat Autònoma de BarcelonaA facile synthetic approach to prepare porous ZnO@CuNi hybrid films is presented. Initially, magnetic CuNi porous layers (consisting of phase separated CuNi alloys) are successfully grown by electrodeposition at different current densities using H2 bubbles as a dynamic template to generate the porosity. The porous CuNi alloys serve as parent scaffolds to be subsequently filled with a solution containing ZnO nanoparticles previously synthesized by sol-gel. The dispersed nanoparticles are deposited dropwise onto the CuNi frameworks and the solvent is left to evaporate while the nanoparticles impregnate the interior of the pores, rendering ZnO-coated CuNi 3D porous structures. No thermal annealing is required to obtain the porous films. The synthesized hybrid porous layers exhibit an interesting combination of tunable ferromagnetic and photoluminescent properties. In addition, the aqueous photocatalytic activity of the composite is studied under UV−visible light irradiation for the degradation of Rhodamine B. The proposed method represents a fast and inexpensive approach towards the implementation of devices based on metal-semiconductor porous systems, avoiding the use of post-synthesis heat treatment steps which could cause deleterious oxidation of the metallic counterpart, as well as collapse of the porous structure and loss of the ferromagnetic properties.http://dx.doi.org/10.1080/14686996.2016.1165583porous nanocompositecuni alloyzno nanoparticlesferromagnetismphotoluminescence |
| spellingShingle | Miguel Guerrero Jin Zhang Ainhoa Altube Eva García-Lecina Mònica Roldan Maria Dolors Baró Eva Pellicer Jordi Sort Room-temperature synthesis of three-dimensional porous ZnO@CuNi hybrid magnetic layers with photoluminescent and photocatalytic properties Science and Technology of Advanced Materials porous nanocomposite cuni alloy zno nanoparticles ferromagnetism photoluminescence |
| title | Room-temperature synthesis of three-dimensional porous ZnO@CuNi hybrid magnetic layers with photoluminescent and photocatalytic properties |
| title_full | Room-temperature synthesis of three-dimensional porous ZnO@CuNi hybrid magnetic layers with photoluminescent and photocatalytic properties |
| title_fullStr | Room-temperature synthesis of three-dimensional porous ZnO@CuNi hybrid magnetic layers with photoluminescent and photocatalytic properties |
| title_full_unstemmed | Room-temperature synthesis of three-dimensional porous ZnO@CuNi hybrid magnetic layers with photoluminescent and photocatalytic properties |
| title_short | Room-temperature synthesis of three-dimensional porous ZnO@CuNi hybrid magnetic layers with photoluminescent and photocatalytic properties |
| title_sort | room temperature synthesis of three dimensional porous zno cuni hybrid magnetic layers with photoluminescent and photocatalytic properties |
| topic | porous nanocomposite cuni alloy zno nanoparticles ferromagnetism photoluminescence |
| url | http://dx.doi.org/10.1080/14686996.2016.1165583 |
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