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Labrag J, Abbadi M, Hnini M, Bekkali CE, Bouziani A, Robert D, Aurag J, Laghzizil A, Nunzi JM. Antibiotic photocatalysis and antimicrobial activity of low-cost multifunctional Fe 3O 4@HAp nanocomposites. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2023; 21:429-440. [PMID: 37869605 PMCID: PMC10584758 DOI: 10.1007/s40201-023-00869-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 06/17/2023] [Indexed: 10/24/2023]
Abstract
Water contamination by multiple pollutants is a serious environmental issue originating from the many diverse sources of pollution. It has worsened with the appearance of new contaminants, named emerging micropollutants, such as drug residues which are considered a potential threat to human health and/or ecosystems. These require prior treatment before release into the environment. Simultaneous adsorption and photocatalysis as well as solid-liquid separation are promising technologies for water treatment. In order to obtain low cost photoactive nanocomposites, porous and magnetic Fe3O4-hydroxyapatite (wFeHAp) nanocomposites were prepared by soft chemistry from the dissociation of natural phosphate into Ca2+ and H3PO4 precursors, further neutralized by ammonia in the presence of preformed Fe3O4 particles. The magnetic nanocomposites were characterized and examined as effective antibacterial agents. Fe3O4 association with apatite modifies the surface properties of the wFeHAp nanocomposite materials, yielding efficient antimicrobial activity for S. aureus, B. subtilis, E. coli and K. pneumoniae strains. The photocatalytic removal of ciprofloxacin (CPF) and oxytetracyclin (OXT) antibiotics in water was also evaluated. The wFeHAp nanocomposites adsorbed and degraded the selected antibiotics successfully. Toxicity evaluation of the treated water after photodegradation using the four strains demonstrates the absence of toxic by-products at the end of the reaction. Therefore, Fe3O4@HAp nanoparticles are valuable for antimicrobial and photocatalysis applications.
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Affiliation(s)
- J. Labrag
- Laboratory of Applied Chemistry of Materials, Faculty of Science, Mohammed V University in Rabat, Avenue Ibn Batouta, BP.1014, Rabat, Morocco
| | - M. Abbadi
- Laboratory of Applied Chemistry of Materials, Faculty of Science, Mohammed V University in Rabat, Avenue Ibn Batouta, BP.1014, Rabat, Morocco
- Institut de Chimie et Procédés pour l’Energie, l’Environnement et la Sante (ICPEES), CNRS‑UMR7515, Université de Strasbourg, Saint-Avold Antenna, Université de Lorraine, 12 Rue Victor Demange, 57500 Saint‑Avold, France
| | - M. Hnini
- Center of Plant and Microbial Biotechnology, Biodiversity and Environment, Faculty of Science, Mohammed V University in Rabat, Avenue Ibn Batouta, BP.1014, Rabat, Morocco
| | - C. El Bekkali
- Laboratory of Applied Chemistry of Materials, Faculty of Science, Mohammed V University in Rabat, Avenue Ibn Batouta, BP.1014, Rabat, Morocco
| | - A. Bouziani
- Chemical Engineering Department, Middle East Technical University, Üniversiteler Mahalesi ODTÜ, Çankaya, Ankara 06800 Turkey
| | - D. Robert
- Institut de Chimie et Procédés pour l’Energie, l’Environnement et la Sante (ICPEES), CNRS‑UMR7515, Université de Strasbourg, Saint-Avold Antenna, Université de Lorraine, 12 Rue Victor Demange, 57500 Saint‑Avold, France
| | - J. Aurag
- Center of Plant and Microbial Biotechnology, Biodiversity and Environment, Faculty of Science, Mohammed V University in Rabat, Avenue Ibn Batouta, BP.1014, Rabat, Morocco
| | - A. Laghzizil
- Laboratory of Applied Chemistry of Materials, Faculty of Science, Mohammed V University in Rabat, Avenue Ibn Batouta, BP.1014, Rabat, Morocco
| | - J.-M. Nunzi
- Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6 Canada
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Wu T, Li X, Weng CH, Ding F, Tan F, Duan R. Highly efficient LaMO 3 (M = Co, Fe) perovskites catalyzed Fenton's reaction for degradation of direct blue 86. ENVIRONMENTAL RESEARCH 2023; 227:115756. [PMID: 36966992 DOI: 10.1016/j.envres.2023.115756] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/12/2023] [Accepted: 03/22/2023] [Indexed: 05/08/2023]
Abstract
Perovskite-structured catalysts LaMO3 (M = Co, Fe) were successfully synthesized and attempted to catalyze hydrogen peroxide (H2O2) for the degradation of Direct Blue 86 (DB86), a carcinogenic phthalocyanine dye. The heterogeneous Fenton-like reaction revealed that the oxidative power of the LaCoO3-catalyzed H2O2 (LaCoO3/H2O2) process was higher than that of LaFeO3/H2O2. When LaCoO3 was calcined at 750 °C for 5 h, 100 mg/L of DB86 could be completely degraded within 5 min via LaCoO3/H2O2 system under H2O2 0.0979 mol/L, initial pH 3.0, LaCoO3 0.4 g/L, and 25 °C. The oxidative LaCoO3/H2O2 system has a low activation energy (14.68 kJ/mol) for DB86 degradation, indicating that it is a fast reaction process with highly favorable at high reaction temperatures. For the first time, a cyclic reaction mechanism of catalytic LaCoO3/H2O2 system was proposed based on the evidence of coexisting CoII and CoIII on the LaCoO3 surface and the presence of HO• radicals (major), O2•- radicals (minor), and 1O2 (minor). LaCoO3 perovskite catalyst was reusable and still maintained reactive with a satisfactory degradation efficiency within 5 min even after five consecutive uses. This study shows that the as-prepared LaCoO3 is a highly efficient catalyst for phthalocyanine dye degradation.
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Affiliation(s)
- Tengyan Wu
- Hunan Provincial Key Laboratory of Fine Ceramics and Powder Materials, School of Materials and Environmental Engineering, Hunan University of Humanities, Science and Technology, Loudi, Hunan, 417000, China
| | - Xiang Li
- Hunan Provincial Key Laboratory of Fine Ceramics and Powder Materials, School of Materials and Environmental Engineering, Hunan University of Humanities, Science and Technology, Loudi, Hunan, 417000, China
| | - Chih-Huang Weng
- Department of Civil Engineering, I-Shou University, Kaohsiung City, 84008, Taiwan.
| | - Feng Ding
- Hunan Provincial Key Laboratory of Fine Ceramics and Powder Materials, School of Materials and Environmental Engineering, Hunan University of Humanities, Science and Technology, Loudi, Hunan, 417000, China.
| | - Fengliang Tan
- Hunan Provincial Key Laboratory of Fine Ceramics and Powder Materials, School of Materials and Environmental Engineering, Hunan University of Humanities, Science and Technology, Loudi, Hunan, 417000, China
| | - Renyan Duan
- Hunan Provincial Key Laboratory of Fine Ceramics and Powder Materials, School of Materials and Environmental Engineering, Hunan University of Humanities, Science and Technology, Loudi, Hunan, 417000, China
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Beiranvand M, Farhadi S, Mohammadi-Gholami A. Ag NPs decorated on the magnetic rod-like hydroxyapatite/MIL-101(Fe) nanocomposite as an efficient catalyst for the reduction of some nitroaromatic compounds and as an effective antimicrobial agent. RSC Adv 2023; 13:13683-13697. [PMID: 37152578 PMCID: PMC10157360 DOI: 10.1039/d3ra01180a] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 04/24/2023] [Indexed: 05/09/2023] Open
Abstract
A rod-like magnetic nanocomposite was successfully synthesized in this work by loading Ag and Fe3O4 nanoparticles onto the surface of the hydroxyapatite/MIL-101(Fe) metal-organic framework. Various techniques were used to investigate the crystalline nature, size, morphology, and magnetic and structural properties of the HAP/MIL-101(Fe)/Ag/Fe3O4 nanocomposite, including X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, Raman spectroscopy, field-emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), vibrating sample magnetometry (VSM), BET surface area measurements, and zeta potential analysis. The results indicate that the nanocomposite sample is composed of Ag and Fe3O4 nanoparticles adhered to rod-like hydroxyapatite/MIL-101(Fe). The catalytic and antibacterial abilities of the as-prepared HAP/MIL-101(Fe)/Ag/Fe3O4 were studied. This nanocomposite was utilized as a heterogeneous catalyst for the catalytic reduction of toxic pollutants, including 4-nitrophenol (4-NP), 2-nitrophenol (2-NP), 2,4-dinitrophenol (2,4-NP), 4-nitroaniline (4-NA), and 2-nitroaniline (2-NA) by NaBH4 in water and at room temperature. These compounds were converted to their amine derivatives within 8-18 min with rate constant values equal to 0.2, 0.3, 0.33, and 0.47 min-1, respectively. This quaternary magnetic catalyst can be easily separated from the reaction medium using an external magnetic field and reused. The synthesized nanocomposite maintained its efficiency in reducing nitroaromatic compounds after 5 runs, showing the high stability of the catalyst. Besides, the antibacterial activity of the nanocomposite against Gram-negative and Gram-positive bacteria was evaluated using the disk diffusion method. The inhibition zone diameter of the nanocomposite against Staphylococcus aureus, Staphylococcus saprophyticus, and Escherichia coli was measured to be 17, 14, and 12 mm, respectively.
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Affiliation(s)
- Maryam Beiranvand
- Department of Inorganic Chemistry, Faculty of Chemistry, Lorestan University Khorramabad 68151-44316 Iran
| | - Saeed Farhadi
- Department of Inorganic Chemistry, Faculty of Chemistry, Lorestan University Khorramabad 68151-44316 Iran
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Díaz-Verde Á, Montilla-Verdú S, Torregrosa-Rivero V, Illán-Gómez MJ. Tailoring the Composition of Ba xBO 3 (B = Fe, Mn) Mixed Oxides as CO or Soot Oxidation Catalysts in Simulated GDI Engine Exhaust Conditions. Molecules 2023; 28:molecules28083327. [PMID: 37110561 PMCID: PMC10147041 DOI: 10.3390/molecules28083327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/14/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
Mixed oxides with perovskite-type structure (ABO3) are promising catalysts for atmospheric pollution control due to their interesting and tunable physicochemical properties. In this work, two series of BaxMnO3 and BaxFeO3 (x = 1 and 0.7) catalysts were synthesized using the sol-gel method adapted to aqueous medium. The samples were characterized by μ-XRF, XRD, FT-IR, XPS, H2-TPR, and O2-TPD. The catalytic activity for CO and GDI soot oxidation was determined by temperature-programmed reaction experiments (CO-TPR and soot-TPR, respectively). The results reveal that a decrease in the Ba content improved the catalytic performance of both catalysts, as B0.7M-E is more active than BM-E for CO oxidation, and B0.7F-E presents higher activity than BF for soot conversion in simulated GDI engine exhaust conditions. Manganese-based perovskites (BM-E and B0.7M-E) achieve better catalytic performance than iron-based perovskite (BF) for CO oxidation reaction due to the higher generation of actives sites.
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Affiliation(s)
- Álvaro Díaz-Verde
- Carbon Materials and Environment Research Group, Inorganic Chemistry Department, University of Alicante, 03690 Alicante, Spain
| | - Salvador Montilla-Verdú
- Carbon Materials and Environment Research Group, Inorganic Chemistry Department, University of Alicante, 03690 Alicante, Spain
| | - Verónica Torregrosa-Rivero
- Carbon Materials and Environment Research Group, Inorganic Chemistry Department, University of Alicante, 03690 Alicante, Spain
| | - María-José Illán-Gómez
- Carbon Materials and Environment Research Group, Inorganic Chemistry Department, University of Alicante, 03690 Alicante, Spain
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Liu G, Lin Y, Li S, Shi C, Zhang D. Mechanism and efficiency of photocatalytic triclosan degradation by TiO 2/BiFeO 3 nanomaterials. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2022; 86:3133-3152. [PMID: 36579874 DOI: 10.2166/wst.2022.397] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Hierarchical porous TiO2 photocatalytic nanomaterials were fabricated by impregnation and calcination using a peanut shell biotemplate, and TiO2/BiFeO3 composite nanomaterials with different doping amounts were fabricated using hydrothermal synthesis. The micromorphology, structure, element composition and valence state of the photocatalyst were analyzed using a series of characterization methods, including X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), BET surface area (BET), X-ray photoelectron spectroscopy (XPS), UV-visible diffuse reflectance (UV-vis), fluorescence spectroscopy (PL) and other technological means. Finally, the degradation mechanism and efficiency of BiFeO3 composite photocatalyst on the target pollutant triclosan were analyzed using a xenon lamp to simulate sunlight. The results showed that TiO2/BiFeO3 catalyst fabricated using a peanut shell biotemplate has a specific surface area of 153.64 m2/g, a band gap of 1.92 eV, and forms heterostructures. The optimum doping amount of TiO2/BiFeO3 catalyst was 1 mol/mol, and the degradation rate was 81.2%. The main active substances degraded were ·O2-and ·OH. The degradation process measured is consistent with the pseudo-first-order kinetic model.
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Affiliation(s)
- Gen Liu
- School of Environment, Northeast Normal University, Changchun 130117, China
| | - Yingzi Lin
- School of Municipal and Environmental Engineering, Jilin Jianzhu University, Changchun 130118, People's Republic of China E-mail: ; Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, Changchun 130118, People's Republic of China
| | - Siwen Li
- School of Environment, Northeast Normal University, Changchun 130117, China
| | - Chunyan Shi
- The University of Kitakyushu, 1-1 Hibikino Wakamatsuku, Kitakyushu, Fukuoka, Japan
| | - Daihua Zhang
- School of Municipal and Environmental Engineering, Jilin Jianzhu University, Changchun 130118, People's Republic of China E-mail:
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Nguyen KT, Nguyen CTH, Pham CN, Duong LT, Nguyen BQ, Le HB, Nguyen MVN, Dao NN. Kinetics and mechanism of photocatalytic degradation of rhodamine B on nanorod bismuth ferrite perovskite prepared by hydrothermal method. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04877-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Kapoor A, Pratibha, Rajput JK. Solar light photocatalytic activity of CuO/TiO2 mixed oxide derived from conjugated azomethine metal complex for degradation of food colorants. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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8
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Li H, Yu J, Gong Y, Lin N, Yang Q, Zhang X, Wang Y. Perovskite catalysts with different dimensionalities for environmental and energy applications: A review. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Mahmoudi F, Saravanakumar K, Maheskumar V, Njaramba LK, Yoon Y, Park CM. Application of perovskite oxides and their composites for degrading organic pollutants from wastewater using advanced oxidation processes: Review of the recent progress. JOURNAL OF HAZARDOUS MATERIALS 2022; 436:129074. [PMID: 35567810 DOI: 10.1016/j.jhazmat.2022.129074] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 04/29/2022] [Accepted: 05/02/2022] [Indexed: 06/15/2023]
Abstract
In the recent years, perovskite oxides are gaining an increasing amount of attention owing to their unique traits such as tunable electronic structures, flexible composition, and eco-friendly properties. In contrast, their catalytic performance is not satisfactory, which hinders real wastewater remediation. To overcome this shortcoming, various strategies are developed to design new perovskite oxide-based materials to enhance their catalytic activities in advanced oxidation process (AOPs). This review article is to provide overview of basic principle and different methods of AOPs, while the strategies to design novel perovskite oxide-based composites for enhancing the catalytic activities in AOPs have been highlighted. Moreover, the recent progress of their synthesis and applications in wastewater remediation (pertaining to the period 2016-2022) was described, and the related mechanisms were thoroughly discussed. This review article helps scientists to have a clear outlook on the selection and design of new effective perovskite oxide-based materials for the application of AOPs. At the end of the review, perspective on the challenges and future research directions are discussed.
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Affiliation(s)
- Farzaneh Mahmoudi
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea.
| | - Karunamoorthy Saravanakumar
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea.
| | - Velusamy Maheskumar
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea.
| | - Lewis Kamande Njaramba
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea.
| | - Yeomin Yoon
- Department of Civil and Environmental Engineering, University of South Carolina, 300 Main Street, Columbia, SC 29208, USA.
| | - Chang Min Park
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea.
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10
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Yao J, Chen Z, Zhang H, Gao N, Zhang Z, Jiang W. New insight into the regulation mechanism of visible light in naproxen degradation via activation of peroxymonosulfate by MOF derived BiFeO 3. JOURNAL OF HAZARDOUS MATERIALS 2022; 431:128513. [PMID: 35219060 DOI: 10.1016/j.jhazmat.2022.128513] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 02/08/2022] [Accepted: 02/16/2022] [Indexed: 06/14/2023]
Abstract
BiFeO3 (BFO) nanocage prepared by metal-organic-framework derivatization (MOF-d) was adopted as activator to first investigate the effect mechanism of visible-light on naproxen-degradation via peroxymonosulfate (PMS) activation. MOF-d BFO expressed more excellent PMS activation ability than hydrothermal-synthetic BFO, due to highly ordered mesopores. A 3.0 times higher pseudo-first-order degradation rate constant was achieved after visible-light introduced. The quenching experiments indicated that the contribution of ROS in naproxen degradation followed the order of SO4•->1O2 ≈ •OH in MOF-d BFO/PMS/dark system, while changed into h+>1O2 > >O2•-≈SO4•-> •OH after visible-light introduced. EPR tests first revealed that visible-light promoted 1O2 yield (non-radical pathway) but suppressed •OH and SO4•- generation (free-radical pathways). N2-purging experiments further proved that 1O2 primarily originates from the reaction between h+ and PMS, equivalently to that between O2 and e--h+ in MOF-d BFO/PMS/vis system. Under visible-light, PMS activation via Fe (III) might be hindered by e- filling on Fe 3d orbital and anion PMS preferred to approach h+ rather than e-, resulting in the decrease of •OH and SO4•- yields. Moreover, PMS faces competition from adsorbed-O2 and oxygen-vacancies for e- capture. The degradation-pathways for naproxen in dark and under visible light were both proposed in MOF-d BFO/PMS system.
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Affiliation(s)
- Juanjuan Yao
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 40045, China.
| | - Zihan Chen
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 40045, China
| | - Huiying Zhang
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 40045, China
| | - Naiyun Gao
- State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai 200092, China
| | - Zhi Zhang
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 40045, China
| | - Wenchao Jiang
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 40045, China
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11
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Pratibha, Rajput JK. Synergistically Enhanced Solar‐light Driven Degradation of Hazardous Food Colorants by Ultrasonically Derived MgFe
2
O
4
/S‐doped g‐C
3
N
4
Nanocomposite: A Z‐Scheme System Based Heterojunction Approach. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6745] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Pratibha
- Department of Chemistry, Dr. B. R Ambedkar National Institute of Technology Jalandhar Punjab India
| | - Jaspreet Kaur Rajput
- Department of Chemistry, Dr. B. R Ambedkar National Institute of Technology Jalandhar Punjab India
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Castillo-Ruiz EA, Garcia-Gutierrez DF, Garcia-Gutierrez DI. High-yield synthesis of CsPbBr 3nanoparticles: diphenylphosphine as a reducing agent and its effect in Pb-seeding nucleation and growth. NANOTECHNOLOGY 2022; 33:155604. [PMID: 34965515 DOI: 10.1088/1361-6528/ac46d8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 12/28/2021] [Indexed: 06/14/2023]
Abstract
Based on the reported nucleation mechanisms for CsPbX3and II-VI/IV-VI quantum dots, CsPbBr3nanoparticles with a higher reaction-yield (up to 393% mass-increment) were synthetized by the hot-injection method. The introduction of diphenylphosphine (DPP) as a reducing agent improved nanoparticle nucleation and growth, giving out evidence for Pb-seeding in CsPbBr3nanoparticles formation. Additionally, a clear influence of the DPP in a CsPbBr3-Cs4PbBr6incomplete phase transformation was observed, marked by the appearance of several PbBr2nanoparticles. This indicated the need for an improved ratio between the stabilizing agents and the precursors, due to the increased number of nucleation sites produced by DPP. The resulting CsPbBr3nanoparticles showed high quality, as they displayed 70%-90% photoluminescence quantum yield; narrow size distribution with an average nanoparticle size of∼10 nm; and the characteristic cubic morphology reported in previous works. This increment in CsPbBr3nanoparticles' reaction yield will contribute to making them a more attractive option for different optoelectronic applications.
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Affiliation(s)
- Eder A Castillo-Ruiz
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ingeniería Mecánica y Eléctrica, FIME, Av. Universidad S/N, Cd. Universitaria, San Nicolás de los Garza, Nuevo León, C.P. 66450, Mexico
- Universidad Autónoma de Nuevo León, UANL, Centro de Innovación, Investigación y Desarrollo en Ingeniería y Tecnología, CIIDIT, Apodaca, Nuevo León, C.P. 66628, Mexico
| | - Diana F Garcia-Gutierrez
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ingeniería Mecánica y Eléctrica, FIME, Av. Universidad S/N, Cd. Universitaria, San Nicolás de los Garza, Nuevo León, C.P. 66450, Mexico
- Universidad Autónoma de Nuevo León, UANL, Centro de Innovación, Investigación y Desarrollo en Ingeniería y Tecnología, CIIDIT, Apodaca, Nuevo León, C.P. 66628, Mexico
| | - Domingo I Garcia-Gutierrez
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ingeniería Mecánica y Eléctrica, FIME, Av. Universidad S/N, Cd. Universitaria, San Nicolás de los Garza, Nuevo León, C.P. 66450, Mexico
- Universidad Autónoma de Nuevo León, UANL, Centro de Innovación, Investigación y Desarrollo en Ingeniería y Tecnología, CIIDIT, Apodaca, Nuevo León, C.P. 66628, Mexico
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Chandra P. Modern Trends in the Applications of Perovskites for Selective Organic Transformations. ChemistrySelect 2021. [DOI: 10.1002/slct.202101434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Prakash Chandra
- Department of Chemistry School of Technology Pandit Deendayal Petroleum University Knowledge Corridor, Raisan Village Gandinagar Gujarat 382007
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Graphitic carbon nitride nanosheets (g-C 3N 4 NS) as dual responsive template for fluorescent sensing as well as degradation of food colorants. Food Chem 2020; 343:128451. [PMID: 33129619 DOI: 10.1016/j.foodchem.2020.128451] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 09/25/2020] [Accepted: 10/19/2020] [Indexed: 11/22/2022]
Abstract
In this work, fluorescent g-C3N4 NS with laminar morphology and ultrathin thickness were fabricated. The as synthesized NS were well characterized by UV-Visible and Fluorescence spectroscopy, FT-IR, XRD and HR-TEM. The bright blue fluorescent suspension of g-C3N4 NS was utilized for efficient detection of food colorant; tartrazine (Tz) and sunset yellow (SY). Both food colorant were able to quench fluorescence of NS efficiently were able to detect them selectively over other interfering analytes. The chemosensor showed linear range response for low concentration of Tz and SY with limit of detection for Tz and SY as 0.0325 μM (32.5 nM) and 0.221 μM (221 nM), respectively. They served as non-toxic and low cost photocatalyst. The catalytic degradation process was confirmed by mass and UV-Visible spectra analysis. The g-C3N4 NS served dual role of detection as well as photocatalytic degradation of food colorant.
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Pratibha, Rajput JK. Autocombustion‐Promoted Synthesis of Lanthanum Iron Oxide: Application as Heterogeneous Catalyst for Synthesis of Piperidines, Substituted Amines and Light‐Assisted Degradations. ChemistrySelect 2020. [DOI: 10.1002/slct.202002656] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Pratibha
- Department of Chemistry Dr. B.R Ambedkar National Institute of Technology Jalandhar Punjab 144011 India
| | - Jaspreet K. Rajput
- Department of Chemistry Dr. B.R Ambedkar National Institute of Technology Jalandhar Punjab 144011 India
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