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Athikaphan P, Wongsanga K, Klanghiran S, Lertna N, Neramittagapong A, Rood SC, Nijpanich S, Neramittagapong S. Degradation of formaldehyde by photo-Fenton process over n-ZVI/TiO 2 catalyst. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:90397-90409. [PMID: 36787078 DOI: 10.1007/s11356-023-25812-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 02/05/2023] [Indexed: 06/18/2023]
Abstract
The degradation of formaldehyde in a photo-Fenton reaction was studied using n-ZVI/TiO2 as the catalyst. The effects of %n-ZVI loading, catalyst dosage, H2O2, and pH on formaldehyde degradation were studied. The n-ZVI/TiO2 catalysts were prepared by impregnation with chemical reduction, and their catalytic activity was evaluated in a batch reactor under UVC light. Transmission electron microscopy (TEM) was used to determine that the n-ZVI nanoparticle size was 39.41 nm. X-ray photoelectron spectroscopy (XPS) was used to study the oxidation states of 2%n‑ZVI/TiO2, and the Fe 2p spectrum of 2%n-ZVI/TiO2 indicated the presence of Fe0. The optimal conditions for the complete removal of formaldehyde within 30 min were an n-ZVI loading of 2 wt.%, a catalyst dosage of 0.5 g/L, 30 mM H2O2, and an initial pH of 3. After the reaction, the C-H functional group of formaldehyde was not observed due to the •OH radicals generated by Fe0 and H2O2 attacking the formaldehyde molecule. Moreover, no Fe leaching was observed, presenting an advantage compared with homogeneous Fe catalysts. Therefore, 2%n‑ZVI/TiO2 shows excellent potential as a photo-Fenton catalyst for the environmentally friendly degradation of formaldehyde.
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Affiliation(s)
- Pakpoom Athikaphan
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Kunlanut Wongsanga
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Sittisak Klanghiran
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Natthaphong Lertna
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Arthit Neramittagapong
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Center for Environmental and Hazardous Substance Management, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Shawn C Rood
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Center for Environmental and Hazardous Substance Management, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Supinya Nijpanich
- Synchrotron Light Research Institute (Public Organization), Nakhon Ratchasima, 30000, Thailand
| | - Sutasinee Neramittagapong
- Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand.
- Research Center for Environmental and Hazardous Substance Management, Khon Kaen University, Khon Kaen, 40002, Thailand.
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2
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Hua Y, Ahmadi Y, Kim KH. Thermocatalytic Degradation of Gaseous Formaldehyde Using Transition Metal-Based Catalysts. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023:e2300079. [PMID: 37114840 PMCID: PMC10375094 DOI: 10.1002/advs.202300079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 03/24/2023] [Indexed: 06/19/2023]
Abstract
Formaldehyde (HCHO: FA) is one of the most abundant but hazardous gaseous pollutants. Transition metal oxide (TMO)-based thermocatalysts have gained much attention in its removal due to their excellent thermal stability and cost-effectiveness. Herein, a comprehensive review is offered to highlight the current progress in TMO-based thermocatalysts (e.g., manganese, cerium, cobalt, and their composites) in association with the strategies established for catalytic removal of FA. Efforts are hence made to describe the interactive role of key factors (e.g., exposed crystal facets, alkali metal/nitrogen modification, type of precursors, and alkali/acid treatment) governing the catalytic activity of TMO-based thermocatalysts against FA. Their performance has been evaluated further between two distinctive operation conditions (i.e., low versus high temperature) based on computational metrics such as reaction rate. Accordingly, the superiority of TMO-based composite catalysts over mono- and bi-metallic TMO catalysts is evident to reflect the abundant surface oxygen vacancies and enhanced FA adsorptivity of the former group. Finally, the present challenges and future prospects for TMO-based catalysts are discussed with respect to the catalytic oxidation of FA. This review is expected to offer valuable information to design and build high performance catalysts for the efficient degradation of volatile organic compounds.
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Affiliation(s)
- Yongbiao Hua
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, South Korea
| | - Younes Ahmadi
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, South Korea
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, South Korea
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Özdokur KV, Koçak ÇC, Eden Ç, Demir Z, Çirak Ç, Yavuz E, Çağlar B. Gold‐Nanoparticles‐Decorated ZrO
2
‐CuO Nanocomposites: Synthesis, Characterization and A Novel Platform for Electrocatalytic Formaldehyde Oxidation. ChemistrySelect 2022. [DOI: 10.1002/slct.202201411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kemal Volkan Özdokur
- Department of Chemistry Faculty of Science and Letter Erzincan Binali Yıldırım University 24100 Erzincan Turkey
- Natural Sciences Application and Research Center Erzincan Binali Yıldırım University 24100 Erzincan Turkey
| | | | - Çiğdem Eden
- Graduate School of Natural and Applied Science Erzincan Binali Yıldırım University 24100 Erzincan Turkey
| | - Zeynep Demir
- Graduate School of Natural and Applied Science Erzincan Binali Yıldırım University 24100 Erzincan Turkey
| | - Çağrı Çirak
- Department of Physic Faculty of Science and Letter Erzincan Binali Yıldırım University 24100 Erzincan Turkey
| | - Emre Yavuz
- Çayırlı Vocational School Erzincan Binali Yıldırım University 24100 Erzincan Turkey
| | - Bülent Çağlar
- Department of Chemistry Faculty of Science and Letter Erzincan Binali Yıldırım University 24100 Erzincan Turkey
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Molino A, Hamandi M, Grosjean R, Dappozze F, Lamaa L, Peruchon L, Brochier C, Dembélé K, El Hajem M, Vernoux P, Guillard C, Kaper H. Coupling of photocatalysis and catalysis using an optical fiber textile for room temperature depollution. CHEMOSPHERE 2022; 297:133940. [PMID: 35231472 DOI: 10.1016/j.chemosphere.2022.133940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 01/22/2022] [Accepted: 02/07/2022] [Indexed: 06/14/2023]
Abstract
Herein, we investigate the interplay between a photocatalyst (TiO2) and a catalyst (Pt/TiO2 and Pt/CeO2) for the oxidation of formaldehyde and toluene at room temperature. A luminous textile is used as support and as light source for the photocatalyst. Our results indicate that the presence of the catalyst and the photocatalyst increases the catalytic performance for the oxidation of formaldehyde, while the photocatalytic performance for toluene oxidation decreases. The overall performance (toluene and formaldehyde degradation) of the system can be optimized with respect to the choice of support for the catalyst (e.g. TiO2 or CeO2), the quantity of Pt used, and the ratio between the catalyst and photocatalyst. In addition, different configurations of the photocatalyst and the catalyst on the textile are studied: under leaching and flow-through gas streams, catalyst and photocatalyst deposition on the same and opposite site of the textile are tested. The performance of the system can be optimized by adapting a configuration where the gas stream goes through the textile, while the deposition side of the catalyst and/or photocatalyst with respect to the gas stream is of minor importance.
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Affiliation(s)
- A Molino
- Laboratoire de Synthèse et Fonctionnalisation des Céramiques, CNRS/Saint-Gobain CREE, Saint-Gobain Research Provence, 550, Ave Alphonse Jauffret, 84306, Cavaillon, France
| | - M Hamandi
- Université de Lyon, Université Claude Bernard Lyon, CNRS, IRCELYON, 2 av Albert Einstein, 69626, Villeurbanne, France
| | - R Grosjean
- Laboratoire de Synthèse et Fonctionnalisation des Céramiques, CNRS/Saint-Gobain CREE, Saint-Gobain Research Provence, 550, Ave Alphonse Jauffret, 84306, Cavaillon, France
| | - F Dappozze
- Université de Lyon, Université Claude Bernard Lyon, CNRS, IRCELYON, 2 av Albert Einstein, 69626, Villeurbanne, France
| | - L Lamaa
- Brochier Technologies, 90 rue Frédéric Faÿs, 69100, Villeurbanne, France
| | - L Peruchon
- Brochier Technologies, 90 rue Frédéric Faÿs, 69100, Villeurbanne, France
| | - C Brochier
- Brochier Technologies, 90 rue Frédéric Faÿs, 69100, Villeurbanne, France
| | - K Dembélé
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Department of Inorganic Chemistry, Faradayweg 4-6, 14195, Berlin, Germany
| | - M El Hajem
- Université de Lyon, INSA de Lyon, Ecole Centrale de Lyon, Université Claude Bernard Lyon 1, CNRS, LMFA UMR, 5509, Villeurbanne, France
| | - P Vernoux
- Université de Lyon, Université Claude Bernard Lyon, CNRS, IRCELYON, 2 av Albert Einstein, 69626, Villeurbanne, France
| | - C Guillard
- Université de Lyon, Université Claude Bernard Lyon, CNRS, IRCELYON, 2 av Albert Einstein, 69626, Villeurbanne, France
| | - H Kaper
- Laboratoire de Synthèse et Fonctionnalisation des Céramiques, CNRS/Saint-Gobain CREE, Saint-Gobain Research Provence, 550, Ave Alphonse Jauffret, 84306, Cavaillon, France.
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Rani S, Garg A, Singh N. Highly efficient photo-degradation of cetirizine antihistamine with TiO2-SiO2 photocatalyst under ultraviolet irradiation. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2021. [DOI: 10.1515/ijcre-2021-0136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Photocatalysis is an extraordinary and vastly researched topic; there is a need to find new ways to support producing composite materials that are cost-effective, efficient and have a low environmental impact. The investigation was undertaken on syn TiO2 by depositing it on silica. The results elucidate the positive effect on photocatalysis activity and the macroscopic structure on which the TiO2 is formed. For the analysis of photocatalyst, various characterisation measurements were undertaken, such as XRD, FTIR, DRS, FESEM, TEM, RS, and BET. The accumulated TiO2 onto the surface of SiO2 stabilised its transformation of the phase from anatase to rutile, resulting in decreased particle size and enhancing its photocatalytic activity under UV irradiation. The concentration of OH• radicals was determined using terephthalic acid as a probe molecule to determine its role in the photocatalytic degradation of antihistamine. The results of BET analysis showed that the syn TiO2-SiO2 sample has a large specific surface area of 192.6 m2 g−1. Maximum degradation of cetirizine (about 97%) was achieved with 80% TiO2-20% SiO2 (TS-4). Recyclability test confirmed that 80% TiO2-20% SiO2 sample was stable up to six cycles.
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Affiliation(s)
- Sonam Rani
- School of Chemistry and Bio-Chemistry , Thapar Institute of Engineering and Technology , Patiala 147004 , India
| | - Alok Garg
- Department of Chemical Engineering , National Institute of Technology , Hamirpur 177005 , India
| | - Neetu Singh
- Department of Chemical Engineering , Thapar Institute of Engineering and Technology , Patiala 147004 , India
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Nasriddinov A, Platonov V, Garshev A, Rumyantseva M. Low Temperature HCHO Detection by SnO 2/TiO 2@Au and SnO 2/TiO 2@Pt: Understanding by In-Situ DRIFT Spectroscopy. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2049. [PMID: 34443880 PMCID: PMC8398349 DOI: 10.3390/nano11082049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/06/2021] [Accepted: 08/09/2021] [Indexed: 12/31/2022]
Abstract
In this work we analyze the effectiveness of decoration of nanocrystalline SnO2/TiO2 composites with gold nanoparticles (Au NPs) and platinum nanoparticles (Pt NPs) in enhancing gas sensor properties in low-temperature HCHO detection. Nanocrystalline SnO2/TiO2 composites were synthesized by a chemical precipitation method with following modification with Pt and Au NPs by the impregnation method. The nanocomposites were characterized by TEM, XRD, Raman and FTIR spectroscopy, DRIFTS, XPS, TPR-H2 methods. In HCHO detection, the modification of SnO2 with TiO2 leads to a shift in the optimal temperature from 150 to 100 °C. Further modification of SnO2/TiO2 nanocomposites with Au NPs increases the sensor signal at T = 100 °C, while modification with Pt NPs gives rise to the appearance of sensor responses at T = 25 °C and 50 °C. At 200 °C nanocomposites exhibited high selectivity toward formaldehyde within the sub-ppm concentration range among different VOCs. The influence of Pt and Au NPs on surface reactivity of SnO2/TiO2 composite and enhancement of the sensor response toward HCHO was studied by DRIFT spectroscopy and explained by the chemical and electronic sensitization mechanisms.
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Affiliation(s)
- Abulkosim Nasriddinov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia; (A.N.); (V.P.); (A.G.)
- Department of Materials Science, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Vadim Platonov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia; (A.N.); (V.P.); (A.G.)
| | - Alexey Garshev
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia; (A.N.); (V.P.); (A.G.)
- Department of Materials Science, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Marina Rumyantseva
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia; (A.N.); (V.P.); (A.G.)
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