1
|
Rey-García F, Sieira BJ, Bao-Varela C, Leis JR, Angurel LA, Quintana JB, Rodil R, de la Fuente GF. Can UV-C laser pulsed irradiation be used for the removal of organic micropollutants from water? Case study with ibuprofen. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 742:140507. [PMID: 32629255 DOI: 10.1016/j.scitotenv.2020.140507] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 06/15/2020] [Accepted: 06/23/2020] [Indexed: 06/11/2023]
Abstract
A novel approach based on the direct pulsed irradiation of UV-C light onto ibuprofen (IBP) solutions was evaluated in this work, as proof of concept for the direct removal of micropollutants. The experiments confirmed that laser irradiation is able to completely degrade IBP in 15 min in distilled water, with a DOC depletion of ca. 25% and with transformation products (TPs) remaining in solution and estimated to represent ca. 10% of the initial IBP concentration. In wastewater spiked samples, removal efficiency is slightly lower but still significant (ca. 5% IBP remaining after 15 min). Hence, this work suggests that low power solid state pulsed lasers, emitting at 266 nm wavelength, show promise for the removal of these type of micropollutants from water. These results open new opportunities towards the development of chemical-free water treatment methods based on direct, selective irradiation using state of the art, miniaturized laser devices.
Collapse
Affiliation(s)
- Francisco Rey-García
- Instituto de Ciencia de Materiales de Aragón (CSIC-Universidad de Zaragoza), c/María de Luna 3, 50018 Zaragoza, Spain; Unidad Asociada de Microóptica & Óptica GRIN, "Photonics4life" group, Universidade de Santiago de Compostela, c/Campus Sur s/n, 15782 Santiago de Compostela, Spain.
| | - Benigno José Sieira
- Department of Analytical Chemistry, Nutrition and Food Sciences, IAQBUS - Institute of Research on Chemical and Biological Analysis, Universidade de Santiago de Compostela, Constantino Candeira S/N, 15782 Santiago de Compostela, Spain
| | - Carmen Bao-Varela
- Unidad Asociada de Microóptica & Óptica GRIN, "Photonics4life" group, Universidade de Santiago de Compostela, c/Campus Sur s/n, 15782 Santiago de Compostela, Spain
| | - José Ramón Leis
- Unidad Asociada de Microóptica & Óptica GRIN, "Photonics4life" group, Universidade de Santiago de Compostela, c/Campus Sur s/n, 15782 Santiago de Compostela, Spain.
| | - Luis Alberto Angurel
- Instituto de Ciencia de Materiales de Aragón (CSIC-Universidad de Zaragoza), c/María de Luna 3, 50018 Zaragoza, Spain
| | - José Benito Quintana
- Department of Analytical Chemistry, Nutrition and Food Sciences, IAQBUS - Institute of Research on Chemical and Biological Analysis, Universidade de Santiago de Compostela, Constantino Candeira S/N, 15782 Santiago de Compostela, Spain
| | - Rosario Rodil
- Department of Analytical Chemistry, Nutrition and Food Sciences, IAQBUS - Institute of Research on Chemical and Biological Analysis, Universidade de Santiago de Compostela, Constantino Candeira S/N, 15782 Santiago de Compostela, Spain
| | - Germán Francisco de la Fuente
- Instituto de Ciencia de Materiales de Aragón (CSIC-Universidad de Zaragoza), c/María de Luna 3, 50018 Zaragoza, Spain.
| |
Collapse
|
2
|
Rodriguez-Muñiz GM, Miranda MA, Marin ML. A Time-Resolved Study on the Reactivity of Alcoholic Drinks with the Hydroxyl Radical. Molecules 2019; 24:E234. [PMID: 30634584 PMCID: PMC6359750 DOI: 10.3390/molecules24020234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Revised: 12/28/2018] [Accepted: 01/07/2019] [Indexed: 01/19/2023] Open
Abstract
Reactive oxygen species (ROS) can provoke damage to cells, where their concentrations are regulated by antioxidants. As the hydroxyl radical (•OH) is the most oxidizing ROS, we have focused our attention on the use of a mechanistically based time-resolved methodology, such as laser flash photolysis, to determine the relative reactivity of alcoholic beverages towards •OH as an indicator of their antioxidant potential. The selected drinks were of two different origins: (i) those derived from grapes such as red wine, white wine, white vermouth, marc and brandy and (ii) spirits not derived from grapes: triple sec, gin, whisky, and rum. Initially, we determined the quenching rate constant of ethanol with •OH and then we explored the reactivity of the different beverages, which was higher than expected based on their alcoholic content. This can be attributed to the presence of antioxidants and was especially remarkable for the grape-derived drinks.
Collapse
Affiliation(s)
- Gemma M Rodriguez-Muñiz
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, E-46022 Valencia, Spain.
| | - Miguel A Miranda
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, E-46022 Valencia, Spain.
| | - M Luisa Marin
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, E-46022 Valencia, Spain.
| |
Collapse
|
3
|
Martinez-Haya R, Gomis J, Arques A, Amat AM, Miranda MA, Marin ML. Direct detection of the triphenylpyrylium-derived short-lived intermediates in the photocatalyzed degradation of acetaminophen, acetamiprid, caffeine and carbamazepine. JOURNAL OF HAZARDOUS MATERIALS 2018; 356:91-97. [PMID: 29857226 DOI: 10.1016/j.jhazmat.2018.05.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 08/18/2017] [Accepted: 08/23/2017] [Indexed: 06/08/2023]
Abstract
Advanced oxidation processes are useful methodologies to accomplish abatement of contaminants; however, elucidation of the reaction mechanisms is hampered by the difficult detection of the short-lived primary key species involved in the photocatalytic processes. Nevertheless, herein the combined use of an organic photocatalyst such as triphenylpyrylium (TPP+) and photophysical techniques based on emission and absorption spectroscopy allowed monitoring the photocatalyst-derived short-lived intermediates. This methodology has been applied to the photocatalyzed degradation of different pollutants, such as acetaminophen, acetamiprid, caffeine and carbamazepine. First, photocatalytic degradation of a mixture of the pollutants showed that acetaminophen was the most easily photodegraded, followed by carbamazepine and caffeine, being the abatement of acetamiprid almost negligible. This process was accompanied by mineralization, as demonstrated by trapping of carbon dioxide using barium hydroxide. Then, emission spectroscopy measurements (steady-state and time-resolved fluorescence) allowed demonstrating quenching of the singlet excited state of TPP+. Laser flash photolysis experiments with absorption detection showed that oxidation of contaminants is accompanied by TPP+ reduction, with formation of a pyranyl radical (TPP), that constituted a fingerprint of the redox nature of the occurring process. The relative amounts of TPP detected was also correlated with the efficiency of the photodegradation process.
Collapse
Affiliation(s)
- R Martinez-Haya
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | - J Gomis
- Grupo de Procesos de Oxidación Avanzada, Departamento de Ingeniería Textil y Papelera, Universitat Politècnica de València, Campus de Alcoy, Alcoy, Spain
| | - A Arques
- Grupo de Procesos de Oxidación Avanzada, Departamento de Ingeniería Textil y Papelera, Universitat Politècnica de València, Campus de Alcoy, Alcoy, Spain.
| | - A M Amat
- Grupo de Procesos de Oxidación Avanzada, Departamento de Ingeniería Textil y Papelera, Universitat Politècnica de València, Campus de Alcoy, Alcoy, Spain
| | - M A Miranda
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | - M L Marin
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 Valencia, Spain.
| |
Collapse
|
4
|
Martinez-Haya R, Sabater C, Castillo MÁ, Miranda MA, Marin ML. A mechanistic study on the potential of quinolinium salts as photocatalysts for the abatement of chlorinated pollutants. JOURNAL OF HAZARDOUS MATERIALS 2018; 351:277-284. [PMID: 29554524 DOI: 10.1016/j.jhazmat.2018.03.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 02/28/2018] [Accepted: 03/06/2018] [Indexed: 06/08/2023]
Abstract
Photocatalytic degradation of three highly chlorinated contaminants, namely 2,4,6-trichlorophenol (TCP), 2,4,6-trichloroanisole (TCA) and 5-chloro-2-(2,4-dichlorophenoxy)phenol (triclosan, TCS) has been investigated in the presence of N-methylquinolinium tetrafluoroborate (NMQ+), a photocatalyst able to act via Type I or Type II mechanism. Photodegradation of contaminants under aerobic conditions was achieved within hours; and it was accompanied by mineralization, as demonstrated by trapping of the evolved carbon dioxide as barium carbonate. Moreover, a high degree of detoxification, based on % inmobilization of daphnids (Daphnia magna bioassay), was reached after 70 h of irradiation. Quenching of the NMQ+ fluorescence by the pollutants was evidenced by a decrease in the emission intensity and lifetime. Detection of the reduced NMQ· by laser flash photolysis in the presence of the pollutants provided an unambigous evidence of the electron transfer process. Quenching of singlet oxygen by the contaminants showed the typical singlet oxygen quenching constants (105-106 M-1 s-1). Evaluation of the relative contribution of both pathways (Type I vs Type II) point to the photodegradation occurring via a Type I mechanism, being the contribution of Type II mechanism negligible at any concentration range.
Collapse
Affiliation(s)
- Rebeca Martinez-Haya
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, E-46022, Valencia, Spain
| | - Consuelo Sabater
- Departamento de Biotecnología, Universitat Politècnica de València, Camino de Vera s/n, E-46022 Valencia, Spain
| | - Maria-Ángeles Castillo
- Departamento de Biotecnología, Universitat Politècnica de València, Camino de Vera s/n, E-46022 Valencia, Spain
| | - Miguel A Miranda
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, E-46022, Valencia, Spain.
| | - M Luisa Marin
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, E-46022, Valencia, Spain.
| |
Collapse
|
5
|
Martinez-Haya R, Gomis J, Arques A, Amat AM, Miranda MA, Marin ML. Direct detection of the triphenylpyrylium-derived short-lived intermediates in the photocatalyzed degradation of acetaminophen, acetamiprid, caffeine and carbamazepine. JOURNAL OF HAZARDOUS MATERIALS 2018; 342:633. [PMID: 28898860 DOI: 10.1016/j.jhazmat.2017.08.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 08/18/2017] [Accepted: 08/23/2017] [Indexed: 06/07/2023]
Abstract
Advanced oxidation processes are useful methodologies to accomplish abatement of contaminants; however, elucidation of the reaction mechanisms is hampered by the difficult detection of the short-lived primary key species involved in the photocatalytic processes. Nevertheless, herein the combined use of an organic photocatalyst such as triphenylpyrylium (TPP+) and photophysical techniques based on emission and absorption spectroscopy allowed monitoring the photocatalyst-derived short-lived intermediates. This methodology has been applied to the photocatalyzed degradation of different pollutants, such as acetaminophen, acetamiprid, caffeine and carbamazepine. First, photocatalytic degradation of a mixture of the pollutants showed that acetaminophen was the most easily photodegraded, followed by carbamazepine and caffeine, being the abatement of acetamiprid almost negligible. This process was accompanied by mineralization, as demonstrated by trapping of carbon dioxide using barium hydroxide. Then, emission spectroscopy measurements (steady-state and time-resolved fluorescence) allowed demonstrating quenching of the singlet excited state of TPP+. Laser flash photolysis experiments with absorption detection showed that oxidation of contaminants is accompanied by TPP+ reduction, with formation of a pyranyl radical (TPP), that constituted a fingerprint of the redox nature of the occurring process. The relative amounts of TPP detected was also correlated with the efficiency of the photodegradation process.
Collapse
Affiliation(s)
- R Martinez-Haya
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | - J Gomis
- Grupo de Procesos de Oxidación Avanzada, Departamento de Ingeniería Textil y Papelera, Universitat Politècnica de València, Campus de Alcoy, Alcoy, Spain
| | - A Arques
- Grupo de Procesos de Oxidación Avanzada, Departamento de Ingeniería Textil y Papelera, Universitat Politècnica de València, Campus de Alcoy, Alcoy, Spain.
| | - A M Amat
- Grupo de Procesos de Oxidación Avanzada, Departamento de Ingeniería Textil y Papelera, Universitat Politècnica de València, Campus de Alcoy, Alcoy, Spain
| | - M A Miranda
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | - M L Marin
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 Valencia, Spain.
| |
Collapse
|
6
|
Martinez-Haya R, Miranda MA, Marin ML. Metal-Free Photocatalytic Reductive Dehalogenation Using Visible-Light: A Time-Resolved Mechanistic Study. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601494] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Rebeca Martinez-Haya
- Instituto de Tecnología Química; Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas; Avenida de los Naranjos s/n 46022 Valencia Spain
| | - Miguel A. Miranda
- Instituto de Tecnología Química; Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas; Avenida de los Naranjos s/n 46022 Valencia Spain
| | - M. Luisa Marin
- Instituto de Tecnología Química; Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas; Avenida de los Naranjos s/n 46022 Valencia Spain
| |
Collapse
|