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Tarighati Sareshkeh A, Seyed Dorraji MS, Karami Z, Shahmoradi S, Fekri E, Daneshvar H, Rasoulifard MH, Karimov DN. Preparation of high-crystalline and non-metal modified g-C 3N 4 for improving ultrasound-accelerated white-LED-light-driven photocatalytic performances. Sci Rep 2023; 13:15079. [PMID: 37699970 PMCID: PMC10497575 DOI: 10.1038/s41598-023-41473-y] [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: 06/06/2023] [Accepted: 08/27/2023] [Indexed: 09/14/2023] Open
Abstract
As a non-metallic organic semiconductor, graphitic carbon nitride (g-C3N4) has received much attention due to its unique physicochemical properties. However, the photocatalytic activity of this semiconductor faces challenges due to factors such as low electronic conductivity and limited active sites provided on its surface. The morphology and structure of g-C3N4, including macro/micro morphology, crystal structure and electronic structure can affect its catalytic activity. Non-metallic heteroatom doping is considered as an effective method to tune the optical, electronic and other physicochemical properties of g-C3N4. Here, we synthesized non-metal-doped highly crystalline g-C3N4 by one-pot calcination method, which enhanced the photocatalytic activity of g-C3N4 such as mesoporous nature, reduced band gap, wide-range photousability, improved charge carrier recombination, and the electrical conductivity was improved. Hence, the use of low-power white-LED-light illumination (λ ≥ 420 nm) and ultrasound (US) irradiation synergistically engendered the Methylene Blue (MB) mineralization efficiency elevated to 100% within 120 min by following the pseudo-first-order mechanism under the following condition (i.e., pH 11, 0.75 g L-1 of O-doped g-C3N4 and S-doped g-C3N4, 20 mg L-1 MB, 0.25 ml s-1 O2, and spontaneous raising temperature). In addition, the rapid removal of MB by sonophotocatalysis was 4 times higher than that of primary photocatalysis. And radical scavenging experiments showed that the maximum distribution of active species corresponds to superoxide radical [Formula: see text]. More importantly, the sonophotocatalytic degradation ability of O-doped g-C3N4 and S-doped g-C3N4 was remarkably sustained even after the sixth consecutive run.
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Affiliation(s)
- Abdolreza Tarighati Sareshkeh
- Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - Mir Saeed Seyed Dorraji
- Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran.
| | - Zhaleh Karami
- Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - Saeedeh Shahmoradi
- Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - Elnaz Fekri
- Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - Hoda Daneshvar
- Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - Mohammad Hossein Rasoulifard
- Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - Denis N Karimov
- Federal Scientific Research Center "Crystallography and Photonics", Russian Academy of Sciences, Leninsky Prospekt 59, 119333, Moscow, Russia.
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Graphene oxide/hydrotalcite modified polyethersulfone nanohybrid membrane for the treatment of lead ion from battery industrial effluent. Chin J Chem Eng 2023. [DOI: 10.1016/j.cjche.2023.01.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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Poolachira S, Velmurugan S. Efficient removal of lead ions from aqueous solution by graphene oxide modified polyethersulfone adsorptive mixed matrix membrane. ENVIRONMENTAL RESEARCH 2022; 210:112924. [PMID: 35149104 DOI: 10.1016/j.envres.2022.112924] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 02/01/2022] [Accepted: 02/07/2022] [Indexed: 06/14/2023]
Abstract
In this study, we report the combined effect of graphene oxide (GO) and polyvinylpyrrolidone (PVP) for the heavy metal removal efficiency of polyethersulfone (PES) membranes. PVP with four different amounts of GO was infused in the membrane matrix by the physical blending method. Characterizations such as porosity, contact angle, water flux and Fourier transform infrared spectroscopy were conducted for all prepared membranes. Viscid behavior of polymer dope solution was examined to understand the phase separation phenomena better. PVP enhanced the GO distribution within the membrane surface to some extent via hydrogen bond. The addition of nanoparticles enhanced the membrane physicochemical properties with water permeation, Pb2+ rejection and adsorption capacity. Permeate flux of modified membrane (m4) was found to be 150.21 L/m2h and it is 8.03 times higher than unmodified membrane (m0). Besides, all fabricated membranes were evaluated for Pb2+ rejection from synthetic wastewater and rejection % of m4 (80.6%) had increased twofold than m0 (38.9%). Membrane cleaning was performed using different methods and the best results were achieved with a concentration of 0.05 wt% sodium hypochlorite under pH 7 and further reused for the filtration test. Moreover, adsorption isotherm was tested using Freundlich and Langmuir models and the Langmuir model offered the best fitting.
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Affiliation(s)
- Sinu Poolachira
- Department of Chemical Engineering, National Institute of Technology Calicut, Calicut, 673 601, India.
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Caputo S, Kovtun A, Bruno F, Ravera E, Lambruschini C, Melucci M, Moni L. Study and application of graphene oxide in the synthesis of 2,3-disubstituted quinolines via a Povarov multicomponent reaction and subsequent oxidation. RSC Adv 2022; 12:15834-15847. [PMID: 35733657 PMCID: PMC9135005 DOI: 10.1039/d2ra01752k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 05/09/2022] [Indexed: 01/25/2023] Open
Abstract
The carbocatalyzed synthesis of 2,3-disubstituted quinolines is disclosed. This process involved a three-component Povarov reaction of anilines, aldehydes and electron-enriched enol ethers, which gave the substrate for the subsequent oxidation. Graphene oxide (GO) was exploited as a heterogeneous, metal-free and sustainable catalyst for both transformations. The multicomponent reaction proceeded under simple and mild reaction conditions, exhibited good functional group tolerance, and could be easily scaled up to the gram level. A selection of tetrahydroquinolines obtained was subsequently aromatized to quinolines. The multistep synthesis could also be performed as a one-pot procedure. Investigation of the real active sites of GO was carried out by performing control experiments and a by full characterization of the carbon material by X-ray photoelectron spectroscopy (XPS) and solid-state nuclear magnetic resonance (ssNMR).
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Affiliation(s)
- Samantha Caputo
- Department of Chemistry and Industrial Chemistry, University of Genoa Via Dodecaneso 31 16146 GENOVA Italy
| | - Alessandro Kovtun
- Consiglio Nazionale delle Ricerche, Istituto per la Sintesi Organica e la Fotoreattività (CNR-ISOF) Via Gobetti 101 40129 BOLOGNA Italy
| | - Francesco Bruno
- Magnetic Resonance Center (CERM), University of Florence Via L. Sacconi 6 50019 Sesto Fiorentino Italy.,Department of Chemistry "Ugo Schiff", University of Florence Via della Lastruccia 3 50019 Sesto Fiorentino Italy.,Consorzio Interuniversitario Risonanze Magnetiche di Metalloproteine (CIRMMP) Via L. Sacconi 6 50019 Sesto Fiorentino Italy
| | - Enrico Ravera
- Magnetic Resonance Center (CERM), University of Florence Via L. Sacconi 6 50019 Sesto Fiorentino Italy.,Department of Chemistry "Ugo Schiff", University of Florence Via della Lastruccia 3 50019 Sesto Fiorentino Italy.,Consorzio Interuniversitario Risonanze Magnetiche di Metalloproteine (CIRMMP) Via L. Sacconi 6 50019 Sesto Fiorentino Italy.,Florence Data -scienze, University of Florence Italy
| | - Chiara Lambruschini
- Department of Chemistry and Industrial Chemistry, University of Genoa Via Dodecaneso 31 16146 GENOVA Italy
| | - Manuela Melucci
- Consiglio Nazionale delle Ricerche, Istituto per la Sintesi Organica e la Fotoreattività (CNR-ISOF) Via Gobetti 101 40129 BOLOGNA Italy
| | - Lisa Moni
- Department of Chemistry and Industrial Chemistry, University of Genoa Via Dodecaneso 31 16146 GENOVA Italy
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Vithalani RS, Modi CK, Sharma V, Jha PK, Srivastava H. DFT assisted study on activation of surface acidic –COOH debris in graphene oxide supported catalyst for benzyl alcohol oxidation. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131620] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Gonsalves OS, Ambre JP, Nemade PR. Improving the yield of graphene oxide-catalysed N-heterocyclization of amines through fed batch mode. NEW J CHEM 2022. [DOI: 10.1039/d2nj03830g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The use of graphene oxide, a metal-free, heterogeneous carbocatalyst for a facile, efficient, and simple protocol for N-heterocyclization of aromatic amines with dihaloalkane to give azacycloalkanes and isolindolines in fed batch strategy was studied.
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Affiliation(s)
- Olviya S. Gonsalves
- Department of Chemical Engineering, Institute of Chemical Technology, Mumbai-400 019, India
| | - Jyoti P. Ambre
- Department of Chemical Engineering, Institute of Chemical Technology, Mumbai-400 019, India
| | - Parag R. Nemade
- Department of Chemical Engineering, Institute of Chemical Technology, Mumbai-400 019, India
- Institute of Chemical Technology, Marathwada Campus, Jalna-431 203, India
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Improved synthesis of graphene oxide with controlled oxidation degree by using different dihydrogen phosphate as intercalators. Chem Phys 2020. [DOI: 10.1016/j.chemphys.2020.110938] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Zambare RS, Dhopte KB, Nemade PR, Tang CY. Effect of oxidation degree of GO nanosheets on microstructure and performance of polysulfone-GO mixed matrix membranes. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116865] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Ebajo VD, Santos CRL, Alea GV, Lin YA, Chen CH. Regenerable Acidity of Graphene Oxide in Promoting Multicomponent Organic Synthesis. Sci Rep 2019; 9:15579. [PMID: 31666532 PMCID: PMC6821726 DOI: 10.1038/s41598-019-51833-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 09/23/2019] [Indexed: 01/13/2023] Open
Abstract
The Brønsted acidity of graphene oxide (GO) materials has shown promising activity in organic synthesis. However, roles and functionality of Lewis acid sites remain elusive. Herein, we reported a carbocatalytic approach utilizing both Brønsted and Lewis acid sites in GOs as heterogeneous promoters in a series of multicomponent synthesis of triazoloquinazolinone compounds. The GOs possessing the highest degree of oxidation, also having the highest amounts of Lewis acid sites, enable optimal yields (up to 95%) under mild and non-toxic reaction conditions (85 °C in EtOH). The results of FT-IR spectroscopy, temperature-programed decomposition mass spectrometry, and X-ray photoelectron spectroscopy identified that the apparent Lewis acidity via basal plane epoxide ring opening, on top of the saturated Brønsted acidic carboxylic groups, is responsible for the enhanced carbocatalytic activities involving Knoevenagel condensation pathway. Recycled GO can be effectively regenerated to reach 97% activity of fresh GO, supporting the recognition of GO as pseudocatalyst in organic synthesis.
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Affiliation(s)
- Virgilio D Ebajo
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan
- Chemistry Department, De La Salle University, Manila, Philippines
| | - Cybele Riesse L Santos
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan
- Chemistry Department, De La Salle University, Manila, Philippines
| | - Glenn V Alea
- Chemistry Department, De La Salle University, Manila, Philippines.
| | - Yuya A Lin
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan
| | - Chun-Hu Chen
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan.
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