Degradation of Methylparaben Using Optimal WO3 Nanostructures: Influence of the Annealing Conditions and Complexing Agent
[EN] In this work, WO3 nanostructures were synthesized with different complexing agents (0.05 M H2O2 and 0.1 M citric acid) and annealing conditions (400 degrees C, 500 degrees C and 600 degrees C) to obtain optimal WO3 nanostructures to use them as a photoanode in the photoelectrochemical (PEC) deg...
| Authors: | ; ; ; |
|---|---|
| Format: | Article |
| Publication date: | 2022 |
| Country: | España |
| Institution: | Universitat Politècnica de València (UPV) |
| Repository: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Language: | English |
| OAI Identifier: | oai:riunet.upv.es:10251/194429 |
| Online Access: | https://riunet.upv.es/handle/10251/194429 |
| Access Level: | Open access |
| Keyword: | Photoelectrocatalysis WO3 nanostructures Degradation Methylparaben Endocrine disruptors INGENIERIA QUIMICA |
| _version_ | 1878740389309972480 |
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| author | Cifre-Herrando, Mireia|||0000-0002-8800-3585 |
| author2 | García-García, D.M.|||0000-0001-8951-4558 Garcia-Anton, Jose|||0000-0002-0289-1324 Roselló-Márquez, Gemma |
| author2_role | author author author |
| author_browse | Cifre-Herrando, Mireia|||0000-0002-8800-3585 Garcia-Anton, Jose|||0000-0002-0289-1324 García-García, D.M.|||0000-0001-8951-4558 Roselló-Márquez, Gemma |
| author_facet | Cifre-Herrando, Mireia|||0000-0002-8800-3585 García-García, D.M.|||0000-0001-8951-4558 Garcia-Anton, Jose|||0000-0002-0289-1324 Roselló-Márquez, Gemma |
| author_role | author |
| collection | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| description | [EN] In this work, WO3 nanostructures were synthesized with different complexing agents (0.05 M H2O2 and 0.1 M citric acid) and annealing conditions (400 degrees C, 500 degrees C and 600 degrees C) to obtain optimal WO3 nanostructures to use them as a photoanode in the photoelectrochemical (PEC) degradation of an endocrine disruptor chemical. These nanostructures were studied morphologically by a field emission scanning electron microscope. X-ray photoelectron spectroscopy was performed to provide information of the electronic states of the nanostructures. The crystallinity of the samples was observed by a confocal Raman laser microscope and X-ray diffraction. Furthermore, photoelectrochemical measurements (photostability, photoelectrochemical impedance spectroscopy, Mott-Schottky and water-splitting test) were also performed using a solar simulator with AM 1.5 conditions at 100 mW center dot cm(-2). Once the optimal nanostructure was obtained (citric acid 0.01 M at an annealing temperature of 600 degrees C), the PEC degradation of methylparaben (C-O 10 ppm) was carried out. It was followed by ultra-high-performance liquid chromatography and mass spectrometry, which allowed to obtain the concentration of the contaminant during degradation and the identification of degradation intermediates. The optimized nanostructure was proved to be an efficient photocatalyst since the degradation of methylparaben was performed in less than 4 h and the kinetic coefficient of degradation was 0.02 min(-1). |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_d22711ca57a9cf4d435bc9dbb45dfd66 |
| institution | Universitat Politècnica de València (UPV) |
| instname_str | Universitat Politècnica de València (UPV) |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:riunet.upv.es:10251/194429 |
| publishDate | 2022 |
| publishDateSort | 2022 |
| publisher | MDPI AG |
| publisherStr | MDPI AG |
| reponame_str | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| spelling | Degradation of Methylparaben Using Optimal WO3 Nanostructures: Influence of the Annealing Conditions and Complexing Agent Cifre-Herrando, Mireia|||0000-0002-8800-3585 García-García, D.M.|||0000-0001-8951-4558 Garcia-Anton, Jose|||0000-0002-0289-1324 Roselló-Márquez, Gemma Photoelectrocatalysis WO3 nanostructures Degradation Methylparaben Endocrine disruptors INGENIERIA QUIMICA [EN] In this work, WO3 nanostructures were synthesized with different complexing agents (0.05 M H2O2 and 0.1 M citric acid) and annealing conditions (400 degrees C, 500 degrees C and 600 degrees C) to obtain optimal WO3 nanostructures to use them as a photoanode in the photoelectrochemical (PEC) degradation of an endocrine disruptor chemical. These nanostructures were studied morphologically by a field emission scanning electron microscope. X-ray photoelectron spectroscopy was performed to provide information of the electronic states of the nanostructures. The crystallinity of the samples was observed by a confocal Raman laser microscope and X-ray diffraction. Furthermore, photoelectrochemical measurements (photostability, photoelectrochemical impedance spectroscopy, Mott-Schottky and water-splitting test) were also performed using a solar simulator with AM 1.5 conditions at 100 mW center dot cm(-2). Once the optimal nanostructure was obtained (citric acid 0.01 M at an annealing temperature of 600 degrees C), the PEC degradation of methylparaben (C-O 10 ppm) was carried out. It was followed by ultra-high-performance liquid chromatography and mass spectrometry, which allowed to obtain the concentration of the contaminant during degradation and the identification of degradation intermediates. The optimized nanostructure was proved to be an efficient photocatalyst since the degradation of methylparaben was performed in less than 4 h and the kinetic coefficient of degradation was 0.02 min(-1). Authors would like to express their gratitude for the financial support to the Ministerio de Ciencia e Innovacion (Project code: PID2019-105844RB-I00/AEI/10.13039/501100011033) in the acquisition of Laser Raman Microscope (UPOV08-3E-012). M. Cifre-Herrando thanks Ministerio de Universidades for the concession of the predoctoral grant (FPU19/02466) and Gemma Rosello-Marquez also thanks the UPV for the concession of a post-doctoral grant (PAID-10-21). Finally, authors wish to thank to project co-funded by FEDER operational programme 2014-2020 of Comunitat Valenciana (IDIFEDER/18/044) for the financial funding. MDPI AG https://riunet.upv.es/handle/10251/194429 |
| spellingShingle | Degradation of Methylparaben Using Optimal WO3 Nanostructures: Influence of the Annealing Conditions and Complexing Agent Cifre-Herrando, Mireia|||0000-0002-8800-3585 Photoelectrocatalysis WO3 nanostructures Degradation Methylparaben Endocrine disruptors INGENIERIA QUIMICA |
| title | Degradation of Methylparaben Using Optimal WO3 Nanostructures: Influence of the Annealing Conditions and Complexing Agent |
| title_full | Degradation of Methylparaben Using Optimal WO3 Nanostructures: Influence of the Annealing Conditions and Complexing Agent |
| title_fullStr | Degradation of Methylparaben Using Optimal WO3 Nanostructures: Influence of the Annealing Conditions and Complexing Agent |
| title_full_unstemmed | Degradation of Methylparaben Using Optimal WO3 Nanostructures: Influence of the Annealing Conditions and Complexing Agent |
| title_short | Degradation of Methylparaben Using Optimal WO3 Nanostructures: Influence of the Annealing Conditions and Complexing Agent |
| title_sort | Degradation of Methylparaben Using Optimal WO3 Nanostructures: Influence of the Annealing Conditions and Complexing Agent |
| topic | Photoelectrocatalysis WO3 nanostructures Degradation Methylparaben Endocrine disruptors INGENIERIA QUIMICA |
| topic_facet | Photoelectrocatalysis WO3 nanostructures Degradation Methylparaben Endocrine disruptors INGENIERIA QUIMICA |
| url | https://riunet.upv.es/handle/10251/194429 |