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Nippes RP, Gomes AD, Macruz PD, de Souza M. Photocatalytic removal of 17β-estradiol from water using a novel bimetallic NiCu/Nb 2O 5 catalyst. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:103731-103742. [PMID: 37688700 DOI: 10.1007/s11356-023-29727-8] [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: 04/24/2023] [Accepted: 09/01/2023] [Indexed: 09/11/2023]
Abstract
The development of effective photocatalytic materials is essential for removing emerging pollutants from aqueous media, such as the hormone 17β-estradiol (E2). In this study, a novel photocatalyst based on niobium pentoxide (Nb2O5) functionalized with nickel (Ni) and copper (Cu) was synthesized for E2 removal. The NiCu/Nb2O5 photocatalyst was prepared using a facile wet impregnation method and characterized by various techniques. The incorporation of Ni and Cu into Nb2O5 reduced the band gap energy from 3.3 to 2.8 eV, enabling efficient utilization of visible light. Moreover, NiCu/Nb2O5 exhibited the highest E2 removal efficiency (82%) under UV-A-assisted conditions at a concentration of 1.5 g L-1. The reaction kinetics were found to follow a second-order model with a rate constant of k = 0.0020 L g-1 min-1, and a plausible reaction mechanism was proposed. Through the study of radical elimination, it was proven that the radical oxidation reaction mechanism predominated in the reaction. The results of the toxicity assays, combined with the TOC parameter, demonstrated the efficacy of photocatalytic degradation in reducing E2. These findings demonstrate the great potential of the NiCu/Nb2O5 photocatalyst for removing persistent pollutants.
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Affiliation(s)
- Ramiro Picoli Nippes
- Chemical Engineering Department of Maringa State University, Maringa, PR, Av. Colombo Zone 7, Brazil, 579087020-900.
| | - Aline Domingues Gomes
- Chemical Engineering Department of Maringa State University, Maringa, PR, Av. Colombo Zone 7, Brazil, 579087020-900
| | - Paula Derksen Macruz
- Chemical Engineering Department of Maringa State University, Maringa, PR, Av. Colombo Zone 7, Brazil, 579087020-900
| | - Marcos de Souza
- Chemical Engineering Department of Maringa State University, Maringa, PR, Av. Colombo Zone 7, Brazil, 579087020-900
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Silvestro L, Maroli C, Koch B, Ruviaro AS, Lima G, Kempka M, Marin CFDF, Mezalira DZ, Gleize PJP. Assessing the Rheological, Mechanical, and Photocatalytic Properties of Niobium Oxide-Incorporated White Cement Pastes. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16114090. [PMID: 37297226 DOI: 10.3390/ma16114090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 05/25/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023]
Abstract
Niobium oxide (Nb2O5) is a semiconductor that exhibits photocatalytic properties, making it potentially valuable in addressing air pollution, self-cleaning, and self-disinfection in cement-based materials (CBMs). Therefore, this study aimed to evaluate the impact of different Nb2O5 concentrations on various parameters, including rheological characteristics, hydration kinetics (measured using isothermal calorimetry), compressive strength, and photocatalytic activity, specifically in the degradation of Rhodamine B (RhB) in white Portland cement pastes. The incorporation of Nb2O5 increased the yield stress and viscosity of the pastes by up to 88.9% and 33.5%, respectively, primarily due to the larger specific surface area (SSA) provided by Nb2O5. However, this addition did not significantly affect the hydration kinetics or the compressive strength of the cement pastes after 3 and 28 days. Tests focusing on the degradation of RhB in the cement pastes revealed that the inclusion of 2.0 wt.% of Nb2O5 was insufficient to degrade the dye when exposed to 393 nm UV light. However, an interesting observation was made concerning RhB in the presence of CBMs, as it demonstrated a degradation mechanism that was not dependent on light. This phenomenon was attributed to the production of superoxide anion radicals resulting from the interaction between the alkaline medium and hydrogen peroxide.
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Affiliation(s)
- Laura Silvestro
- Coordenação de Engenharia Civil, Universidade Tecnológica Federal do Paraná (UTFPR), Guarapuava 85053-525, Brazil
| | - Caroline Maroli
- Programa de Pós-Graduação em Química, Universidade Federal de Santa Catarina (UFSC), Florianopolis 88040-900, Brazil
| | - Brenda Koch
- Programa de Pós-Graduação em Química, Universidade Federal de Santa Catarina (UFSC), Florianopolis 88040-900, Brazil
| | - Artur Spat Ruviaro
- Laboratório de Aplicação de Nanotecnologia em Construção Civil (NANOTEC), Universidade Federal de Santa Catarina (UFSC), Florianopolis 88040-900, Brazil
| | - Geannina Lima
- Laboratório de Aplicação de Nanotecnologia em Construção Civil (NANOTEC), Universidade Federal de Santa Catarina (UFSC), Florianopolis 88040-900, Brazil
| | - Mariane Kempka
- Coordenação de Engenharia Civil, Universidade Tecnológica Federal do Paraná (UTFPR), Guarapuava 85053-525, Brazil
| | | | - Daniela Zambelli Mezalira
- Programa de Pós-Graduação em Química, Universidade Federal de Santa Catarina (UFSC), Florianopolis 88040-900, Brazil
| | - Philippe Jean Paul Gleize
- Laboratório de Aplicação de Nanotecnologia em Construção Civil (NANOTEC), Universidade Federal de Santa Catarina (UFSC), Florianopolis 88040-900, Brazil
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Nippes RP, Macruz PD, Gomes AD, Girotto CP, Scaliante MHNO, de Souza M. Removal of reactive blue 250 dye from aqueous medium using Cu/Fe catalyst supported on Nb2O5 through oxidation with H2O2. REACTION KINETICS MECHANISMS AND CATALYSIS 2022. [DOI: 10.1007/s11144-022-02279-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Song B, Zhang D, Xiao S, Liu C, Chen H, Qi Y, Liu Y. Access to Diarylmethanol Skeletons via a Samarium/Copper-Mediated Sequential Three-Component C-H Functionalization Reaction. J Org Chem 2021; 86:9854-9860. [PMID: 34232043 DOI: 10.1021/acs.joc.1c00764] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A novel three-component reaction was developed via a one-pot strategy for the construction of diarylmethanol esters by using a halobenzene and an ester in N,N-dimethylformamide (DMF) under mild conditions. The reaction involves the direct functionalization of halobenzene under the Sm-CuI catalyst system. It was proved that 10% (mol) of CuI is sufficient to realize the reductive coupling reaction. Influences of substituents were illustrated from both electronic and steric effects. The reaction mechanism was also discussed.
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Affiliation(s)
- Bin Song
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Dianming Zhang
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Shuhuan Xiao
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Chen Liu
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Hongping Chen
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yan Qi
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yongjun Liu
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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Su K, Liu H, Gao Z, Fornasiero P, Wang F. Nb 2O 5-Based Photocatalysts. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2003156. [PMID: 33898172 PMCID: PMC8061393 DOI: 10.1002/advs.202003156] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 11/23/2020] [Indexed: 05/02/2023]
Abstract
Photocatalysis is one potential solution to the energy and environmental crisis and greatly relies on the development of the catalysts. Niobium pentoxide (Nb2O5), a typically nontoxic metal oxide, is eco-friendly and exhibits strong oxidation ability, and has attracted considerable attention from researchers. Furthermore, unique Lewis acid sites (LASs) and Brønsted acid sites (BASs) are observed on Nb2O5 prepared by different methods. Herein, the recent advances in the synthesis and application of Nb2O5-based photocatalysts, including the pure Nb2O5, doped Nb2O5, metal species supported on Nb2O5, and other composited Nb2O5 catalysts, are summarized. An overview is provided for the role of size and crystalline phase, unsaturated Nb sites and oxygen vacancies, LASs and BASs, dopants and surface metal species, and heterojunction structure on the Nb2O5-based catalysts in photocatalysis. Finally, the challenges are also presented, which are possibly overcome by integrating the synthetic methodology, developing novel photoelectric characterization techniques, and a profound understanding of the local structure of Nb2O5.
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Affiliation(s)
- Kaiyi Su
- State Key Laboratory of Catalysis (SKLC)Dalian National Laboratory for Clean Energy (DNL)Dalian Institute of Chemical Physics (DICP)Chinese Academy of SciencesDalian116023China
- University of Chinese Academy of SciencesBeijing100049China
| | - Huifang Liu
- State Key Laboratory of Catalysis (SKLC)Dalian National Laboratory for Clean Energy (DNL)Dalian Institute of Chemical Physics (DICP)Chinese Academy of SciencesDalian116023China
| | - Zhuyan Gao
- State Key Laboratory of Catalysis (SKLC)Dalian National Laboratory for Clean Energy (DNL)Dalian Institute of Chemical Physics (DICP)Chinese Academy of SciencesDalian116023China
- University of Chinese Academy of SciencesBeijing100049China
| | - Paolo Fornasiero
- Department of Chemical and Pharmaceutical SciencesINSTM ‐ Trieste and ICCOM ‐ CNR TriesteUniversity of TriesteVia L. Giorgieri 1Trieste34127Italy
| | - Feng Wang
- State Key Laboratory of Catalysis (SKLC)Dalian National Laboratory for Clean Energy (DNL)Dalian Institute of Chemical Physics (DICP)Chinese Academy of SciencesDalian116023China
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Niobium Pentoxide Samples with Addition of Manganese at Different Concentrations and Calcination Temperatures Applied in the Photocatalytic Degradation of Rhodamine B. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10124257] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In order to improve the photocatalytic effect of Nb2O5, manganese from 1% to 10% was added by the polymeric precursor’s method. The samples obtained were subjected to different calcination temperatures from 400 to 700 °C. Characterization of the synthesized materials was performed by XRD, IR, Raman and Diffuse Reflectance Spectroscopy (DRS) spectroscopy, FE-SEM, Brunauer–Emmett–Teller (BET) method, Photoluminescence (PL) and Dynamic Light Scattering (DLS). Photocatalytic performance for degradation of Rhodamine B was also evaluated. The Rietveld refined X-Ray Diffraction (XRD) pattern of Nb2O5:Mn 1.0 wt.% (700 °C) sample was similar to that of the un-doped oxide, therefore indicating that Nb was replaced by Mn and, consequently, there are not significant variations in the oxide structure. The Nb2O5:Mn 10.0 wt.% (700 °C) sample has the lowest band gap energy. The specific surface area (SBET) PL value increased as manganese concentration increased. The Nb2O5:Mn 5.0 wt.% (700 °C) sample has an Eg of 3.15 eV and morphological and surface characteristics that made it an appropriate photocatalyst in the Rhodamine B degradation. The novelty of this work relies on the use of a small quantity of Mn ions as dopants leading to Nb2O5:Mn nanostructured particles without using any surfactant or other additives.
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Bustos‐Terrones V, Serratos IN, Vargas R, Landeros‐Rivera BC, Bustos‐Terrones YA, Soto Estrada AM, Vicente Escobar JO, Romero Romo MA, Uruchurtu J, Menchaca C, Esparza Schulz JM, Domínguez A. SBA15-Fluconazole as a Protective Approach Against Mild Steel Corrosion: Synthesis, Characterization, and Computational Studies. ChemistryOpen 2018; 7:984-994. [PMID: 30524924 PMCID: PMC6276104 DOI: 10.1002/open.201800201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 10/23/2018] [Indexed: 02/06/2023] Open
Abstract
A SBA15-Fluconazole composite (SBA15-Flu) was prepared to formulate a self-healing coating for mild steel. The composite was obtained by dispersing SBA15 in a methanolic solution containing Fluconazole (Flu). The materials were characterized by using different techniques. Electrochemical impedance spectroscopy (EIS) was used for protective behavior evaluation of the coatings on mild steel substrates in an electrolytic solution prepared from sodium chloride and ammonium sulfate. The EIS results indicate that the inhibitor trapped in the SiO2 matrix is released when it comes into contact the aggressive solution, thus protecting the metal. To understand the inhibitor release mechanism, docking studies were used to model the SBA15-Flu complex, which allowed us to further determine polar and non-polar contributions to the binding free energy. An analysis of the electron density within the quantum theory of atoms in molecules and the non-covalent interaction index frameworks were also carried out for the most favorable models of SBA15-Flu. The results indicate that the liberation rate of the Flu molecules is mainly determined by the formation of strong O-H⋅⋅⋅O, O-H⋅⋅⋅N, and O-H⋅⋅⋅F hydrogen bonds.
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Affiliation(s)
- Victoria Bustos‐Terrones
- Departamento de QuímicaUniversidad Autónoma Metropolitana-IztapalapaSan Rafael Atlixco 186, Col. VicentinaCiudad de México, C.P.09340Mexico
| | - Iris N. Serratos
- Departamento de QuímicaUniversidad Autónoma Metropolitana-IztapalapaSan Rafael Atlixco 186, Col. VicentinaCiudad de México, C.P.09340Mexico
| | - Rubicelia Vargas
- Departamento de QuímicaUniversidad Autónoma Metropolitana-IztapalapaSan Rafael Atlixco 186, Col. VicentinaCiudad de México, C.P.09340Mexico
| | - Bruno C. Landeros‐Rivera
- Departamento de QuímicaUniversidad Autónoma Metropolitana-IztapalapaSan Rafael Atlixco 186, Col. VicentinaCiudad de México, C.P.09340Mexico
| | - Yaneth A. Bustos‐Terrones
- División de Estudios de Posgrado e Investigación—Ingeniería AmbientalInstituto Tecnológico de CuliacánJuan de Dios Batiz 310, Col. Guadalupe, CuliacánSinaloa C.P.80220Mexico
| | - Ana M. Soto Estrada
- Departamento de QuímicaUniversidad Autónoma Metropolitana-IztapalapaSan Rafael Atlixco 186, Col. VicentinaCiudad de México, C.P.09340Mexico
| | - Jonathan O. Vicente Escobar
- Departamento de QuímicaUniversidad Autónoma Metropolitana-IztapalapaSan Rafael Atlixco 186, Col. VicentinaCiudad de México, C.P.09340Mexico
| | - Mario A. Romero Romo
- Área Ingeniería de MaterialesUniversidad Autónoma Metropolitana-AzcapotzalcoAv. San Pablo 180, Col. ReynosaCiudad de México, C.P.02200Mexico
| | - Jorge Uruchurtu
- Universidad Autónoma del Estado de MorelosCentro de Investigación en Ingeniería y Ciencias AplicadasAv. Universidad 1009, Col. Chamilpa, CuernavacaMorelos C.P.60010Mexico
| | - Carmina Menchaca
- Universidad Autónoma del Estado de MorelosCentro de Investigación en Ingeniería y Ciencias AplicadasAv. Universidad 1009, Col. Chamilpa, CuernavacaMorelos C.P.60010Mexico
| | - Juan M. Esparza Schulz
- Departamento de QuímicaUniversidad Autónoma Metropolitana-IztapalapaSan Rafael Atlixco 186, Col. VicentinaCiudad de México, C.P.09340Mexico
| | - Armando Domínguez
- Departamento de QuímicaUniversidad Autónoma Metropolitana-IztapalapaSan Rafael Atlixco 186, Col. VicentinaCiudad de México, C.P.09340Mexico
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Chennakesavulu K, Reddy MM, Reddy GR, Rabel A, Brijitta J, Vinita V, Sasipraba T, Sreeramulu J. Synthesis, characterization and photo catalytic studies of the composites by tantalum oxide and zinc oxide nanorods. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.02.052] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Chennakesavulu K, Reddy GR. Synthesis and characterization of carbon microtube/tantalum oxide composites and their photocatalytic activity under visible irradiation. RSC Adv 2015. [DOI: 10.1039/c5ra06812f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The CMT/Ta2O5 composites were used as photocatalyst in the degradation of xylenol orange and methyl orange dyes.
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Affiliation(s)
- K. Chennakesavulu
- Department of Chemistry
- Sathyabama University
- Chennai-600 119, India
- Centre for Nano Science and Nano Technology
- International Research Centre
| | - G. Ramanjaneya Reddy
- Department of Inorganic Chemistry
- Guindy Campus
- University of Madras
- Chennai-600 025, India
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Reddy GR, Balasubramanian S, Chennakesavulu K. Zeolite encapsulated active metal composites and their photocatalytic studies for rhodamine-B, reactive red-198 and chloro-phenols. RSC Adv 2015. [DOI: 10.1039/c5ra13034d] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Niobium (Nb), tantalum (Ta) and palladium (Pd) were impregnated in the cavities of a zeolite by the ion exchange method.
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Affiliation(s)
| | - S. Balasubramanian
- Department of Inorganic Chemistry
- University of Madras
- Chennai-600 025
- India
| | - K. Chennakesavulu
- Department of Chemistry
- Sathyabama University
- Chennai-600 119
- India
- Centre for Nano Science and Nano Technolgy
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