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Li X, Jamali M, Fielding LA. Pyrene-functionalized poly(methacrylic acid) acts as an efficient stabilizer for graphene nanoplatelets and facilitates their use in waterborne latex formulations. J Colloid Interface Sci 2024; 676:396-407. [PMID: 39033674 DOI: 10.1016/j.jcis.2024.07.116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 07/10/2024] [Accepted: 07/13/2024] [Indexed: 07/23/2024]
Abstract
HYPOTHESIS Pyrene derivatives are effective motifs when designing graphene-philic surfactants, enabling the use of hydrophobic graphene-based nanomaterials in waterborne formulations. Hence, novel pyrene end-functionalized polymeric stabilizers show promise for stabilizing aqueous graphene nanomaterial dispersions, and offer benefits over traditional small molecule surfactants. EXPERIMENTS Pyrene end-functionalized poly(methacrylic acid) (Py-PMAAn, where n = 68 to 128) was synthesized by reversible addition-fragmentation chain-transfer (RAFT) polymerization of MAA using a pyrene-containing RAFT chain-transfer agent. These polymers were evaluated as aqueous graphene nanoplatelet (GNP) stabilizers. Subsequently, polymer-stabilized GNPs were formulated into film-forming polymer latex dispersions and the properties of the resulting GNP-containing films measured. FINDINGS Py-PMAAn homopolymers with well-defined molecular weights were prepared via RAFT solution polymerization. They served as efficient stabilizers for aqueous GNP dispersions and performed better than a traditional small molecule surfactant and non-functionalized PMAA, especially at higher pH and with higher molecular weight polymers. The use of Py-PMAAn allowed GNPs to be readily formulated into waterborne latex coatings. When compared to controls, the resulting films were significantly reinforced due to the improved homogeneity of dried nanocomposite films and chain entanglement between the polymer matrix and stabilizers. Thus, the ability to readily incorporate GNPs into aqueous formulations and enhance GNP/polymer matrix interfaces was demonstrated for these novel amphiphilic stabilizers.
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Affiliation(s)
- Xueyuan Li
- Department of Materials, School of Natural Sciences, University of Manchester, Oxford Road, Manchester M13 9PL, UK; Henry Royce Institute, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Mohammed Jamali
- Department of Materials, School of Natural Sciences, University of Manchester, Oxford Road, Manchester M13 9PL, UK; Henry Royce Institute, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Lee A Fielding
- Department of Materials, School of Natural Sciences, University of Manchester, Oxford Road, Manchester M13 9PL, UK; Henry Royce Institute, The University of Manchester, Oxford Road, Manchester M13 9PL, UK.
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Correa-Abril J, Stahl U, Cabrera EV, Parra YJ, Vega MA, Taamalli S, Louis F, Rodríguez-Díaz JM. Adsorption dynamics of Cd 2+(aq) on microwave-synthetized pristine biochar from cocoa pod husk: Green, experimental, and DFT approaches. iScience 2024; 27:109958. [PMID: 38840843 PMCID: PMC11152673 DOI: 10.1016/j.isci.2024.109958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 04/05/2024] [Accepted: 05/08/2024] [Indexed: 06/07/2024] Open
Abstract
Biochar obtained via microwave-assisted pyrolysis (MAP) at 720 W and 15 min from cocoa pod husk (CPH) is an efficient adsorbent of Cd2+(aq). Biochar of residual biomass of CPH (BCCPH) possesses favorable physicochemical and morphological properties, featuring a modest surface area yet a suitable porous structure. Adsorption, predominantly governed by physisorption, is influenced by the oxygen-containing active sites (-COOR, -C(R)O, and -CH2OR; R = H, alkyl). CdCO3 formation occurs during adsorption. Experimental data were well-fitted into various kinetic models for a broad understanding of the sorption process. Langmuir model indicates a maximum adsorption capacity of 14.694 mg/g. The thermodynamic study confirms the spontaneous and endothermic sorption. Studies at the molecular level have revealed that the Cd2+ ion tends to bind to surface aromatic carbon atoms. This sustainable approach produces BCCPH via MAP as a solution for waste transformation into water-cleaning materials.
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Affiliation(s)
- Jhonny Correa-Abril
- Universidad Central del Ecuador, Facultad de Ingeniería Química, Grupo de Investigación en Moléculas y Materiales Funcionales (MoléMater), Enrique Ritter s/n y Bolivia, Quito, Pichincha 170521, Ecuador
- Facultad de Posgrado, Universidad Técnica de Manabí, Av. Urbina y Che Guevara, Portoviejo, Manabí 130104, Ecuador
| | - Ullrich Stahl
- Universidad Central del Ecuador, Facultad de Ingeniería Química, Grupo de Investigación en Moléculas y Materiales Funcionales (MoléMater), Enrique Ritter s/n y Bolivia, Quito, Pichincha 170521, Ecuador
| | - Elvia V. Cabrera
- Universidad Central del Ecuador, Facultad de Ingeniería Química, Grupo de Investigación en Moléculas y Materiales Funcionales (MoléMater), Enrique Ritter s/n y Bolivia, Quito, Pichincha 170521, Ecuador
| | - Yonathan J. Parra
- Universidad Central del Ecuador, Facultad de Ingeniería en Geología, Minas, Petróleos y Ambiental, Grupo de Investigación en Moléculas y Materiales Funcionales (MoléMater), Jerónimo Leyton y Gilberto Gatto Sobral, Quito, Pichincha 170521, Ecuador
| | - Michael A. Vega
- Universidad Central del Ecuador, Facultad de Ingeniería Química, Grupo de Investigación en Moléculas y Materiales Funcionales (MoléMater), Enrique Ritter s/n y Bolivia, Quito, Pichincha 170521, Ecuador
- Universidad Central del Ecuador, Facultad de Ingeniería en Geología, Minas, Petróleos y Ambiental, Grupo de Investigación en Moléculas y Materiales Funcionales (MoléMater), Jerónimo Leyton y Gilberto Gatto Sobral, Quito, Pichincha 170521, Ecuador
| | - Sonia Taamalli
- Université de Lille, CNRS, UMR 8522, PhysicoChimie des Processus de Combustion et de l’Atmosphère – PC2A, 59000 Lille, France
| | - Florent Louis
- Université de Lille, CNRS, UMR 8522, PhysicoChimie des Processus de Combustion et de l’Atmosphère – PC2A, 59000 Lille, France
| | - Joan Manuel Rodríguez-Díaz
- Laboratorio de Análisis Químicos y Biotecnológicos, Instituto de Investigación, Universidad Técnica de Manabí, Av. Urbina y Che Guevara, Portoviejo, Manabí 130104, Ecuador
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Li X, Shan S, Liang H, Li B, Li D, Huang Y. Effects of different modifying agents on the preparation and properties of coagulants derived from excess sludge. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:99762-99773. [PMID: 37615910 DOI: 10.1007/s11356-023-29144-x] [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: 04/04/2023] [Accepted: 07/31/2023] [Indexed: 08/25/2023]
Abstract
The contents and kinds of oxygen-containing functional groups are very significant when preparing cationic hydrochar coagulants via graft copolymerization. Herein, the hydrothermal conditions to produce sludge-based hydrochar (SBC) precursors were optimized by introducing different kinds and amounts of modifying agents (i.e., HCOOH, citric acid (CA), H2SO4, and H2O2), then the surface properties and flocculation performance of derived cationic coagulants (SBC-g-DMC) were studied. Results showed that the utilization of four modifiers raised the acidic groups on the SBC surface; thereinto, the presence of CA could evidently increase the content of phenolic hydroxyl groups. After DMC monomer grafting, the formed coagulants possess positive zeta potentials over a wide pH range (i.e., 3.0 ~ 11.0), showing a typical cationic property. The grafting ratio and efficiency, as well as the cationic degree of coagulants prepared with different SBC precursors follow a descending order of SBCCA-g-DMC > [Formula: see text]-g-DMC > SBCHCOOH-g-DMC > [Formula: see text]-g-DMC; thus, SBCCA-g-DMC coagulant with the best grafting result shows a superior flocculation performance. When a dosage of 4 mg/L was adopted, the average turbidity removal rate of SBCCA-g-DMC could reach up to 94.44%. Meanwhile, due to the possible and robust oxidation with the initiator, H2O2 seems not a perfect modifier for SBC preparation. This study could provide an essential reference for the optimal synthesis of SBC and its based coagulants for organic matter recovery and pollutant removal.
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Affiliation(s)
- Xueying Li
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, China
| | - Sujie Shan
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, China
- National & Local Joint Engineering Laboratory for Municipal Sewage Resource Utilization Technology, Suzhou University of Science and Technology, Suzhou, China
| | - Hui Liang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, China
| | - Boling Li
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, China
- National & Local Joint Engineering Laboratory for Municipal Sewage Resource Utilization Technology, Suzhou University of Science and Technology, Suzhou, China
| | - Dapeng Li
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, China.
- National & Local Joint Engineering Laboratory for Municipal Sewage Resource Utilization Technology, Suzhou University of Science and Technology, Suzhou, China.
| | - Yong Huang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, China
- National & Local Joint Engineering Laboratory for Municipal Sewage Resource Utilization Technology, Suzhou University of Science and Technology, Suzhou, China
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Yap PL, Farivar F, Jämting ÅK, Coleman VA, Gnaniah S, Mansfield E, Pu C, Landi SM, David MV, Flahaut E, Aizane M, Barnes M, Gallerneault M, Locatelli MD, Jacquinot S, Slough CG, Menzel J, Schmölzer S, Ren L, Pollard AJ, Losic D. International Interlaboratory Comparison of Thermogravimetric Analysis of Graphene-Related Two-Dimensional Materials. Anal Chem 2023; 95:5176-5186. [PMID: 36917706 DOI: 10.1021/acs.analchem.2c03575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
Research on graphene-related two-dimensional (2D) materials (GR2Ms) in recent years is strongly moving from academia to industrial sectors with many new developed products and devices on the market. Characterization and quality control of the GR2Ms and their properties are critical for growing industrial translation, which requires the development of appropriate and reliable analytical methods. These challenges are recognized by International Organization for Standardization (ISO 229) and International Electrotechnical Commission (IEC 113) committees to facilitate the development of these methods and standards which are currently in progress. Toward these efforts, the aim of this study was to perform an international interlaboratory comparison (ILC), conducted under Versailles Project on Advanced Materials and Standards (VAMAS) Technical Working Area (TWA) 41 "Graphene and Related 2D Materials" to evaluate the performance (reproducibility and confidence) of the thermogravimetric analysis (TGA) method as a potential new method for chemical characterization of GR2Ms. Three different types of representative and industrially manufactured GR2Ms samples, namely, pristine few-layer graphene (FLG), graphene oxide (GO), and reduced graphene oxide (rGO), were used and supplied to ILC participants to complete the study. The TGA method performance was evaluated by a series of measurements of selected parameters of the chemical and physical properties of these GR2Ms including the number of mass loss steps, thermal stability, temperature of maximum mass change rate (Tp) for each decomposition step, and the mass contents (%) of moisture, oxygen groups, carbon, and impurities (organic and non-combustible residue). TGA measurements determining these parameters were performed using the provided optimized TGA protocol on the same GR2Ms by 12 participants across academia, industry stakeholders, and national metrology institutes. This paper presents these results with corresponding statistical analysis showing low standard deviation and statistical conformity across all participants that confirm that the TGA method can be satisfactorily used for characterization of these parameters and the chemical characterization and quality control of GR2Ms. The common measurement uncertainty for each parameter, key contribution factors were identified with explanations and recommendations for their elimination and improvements toward their implementation for the development of the ISO/IEC standard for chemical characterization of GR2Ms.
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Affiliation(s)
- Pei Lay Yap
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia.,ARC Hub for Graphene Enabled Industry Transformation, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Farzaneh Farivar
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia.,ARC Hub for Graphene Enabled Industry Transformation, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Åsa K Jämting
- National Measurement Institute Australia (NMIA), Lindfield, Sydney, NSW 2070, Australia
| | - Victoria A Coleman
- National Measurement Institute Australia (NMIA), Lindfield, Sydney, NSW 2070, Australia
| | - Sam Gnaniah
- National Physical Laboratory, Hampton Road, Teddington TW11 0LW, U.K
| | - Elisabeth Mansfield
- National Institute of Standards and Technology (NIST), Boulder, Colorado 80305, United States
| | - Cheng Pu
- National Institute of Metrology, Chaoyang District, Beijing 100029, China
| | - Sandra Marcela Landi
- National Institute of Metrology, Quality and Technology (INMETRO), Sao Paolo, RJ CEP: 25250-020, Brazil
| | - Marcus Vinícius David
- National Institute of Metrology, Quality and Technology (INMETRO), Sao Paolo, RJ CEP: 25250-020, Brazil
| | - Emmanuel Flahaut
- CIRIMAT, CNRS-INP-UPS, Université Toulouse 3 Paul Sabatier, 118 route de Narbonne, Toulouse cedex 9 F-31062, France
| | - Mohammed Aizane
- CIRIMAT, CNRS-INP-UPS, Université Toulouse 3 Paul Sabatier, 118 route de Narbonne, Toulouse cedex 9 F-31062, France
| | - Michael Barnes
- National Research Council of Canada (NRC-CNRC), Ottawa, Ontario K1A 0R6, Canada
| | - Mary Gallerneault
- National Research Council of Canada (NRC-CNRC), Ottawa, Ontario K1A 0R6, Canada
| | | | | | | | | | | | - Lingling Ren
- National Institute of Metrology, Chaoyang District, Beijing 100029, China
| | - Andrew J Pollard
- National Physical Laboratory, Hampton Road, Teddington TW11 0LW, U.K
| | - Dusan Losic
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia.,ARC Hub for Graphene Enabled Industry Transformation, The University of Adelaide, Adelaide, SA 5005, Australia
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Tian L, Zhou S, Zhao J, Xu Q, Li N, Chen D, Li H, He J, Lu J. Sulfonate-modified calixarene-based porous organic polymers for electrostatic enhancement and efficient rapid removal of cationic dyes in water. JOURNAL OF HAZARDOUS MATERIALS 2023; 441:129873. [PMID: 36067555 DOI: 10.1016/j.jhazmat.2022.129873] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 08/17/2022] [Accepted: 08/27/2022] [Indexed: 06/15/2023]
Abstract
Developing of fast and efficient adsorbents for removal of low concentration refractory organics in water is significant. Herein, a novel calix[4]arene-based porous organic polymer CaPy is constructed through Sonogashira-Hagihara cross-coupling polycondensation. The strong polar sulfonate is further anchored onto the polymer skeleton of CaPy and three sulfonate-modified anionic polymers CaPy-S1, CaPy-S2, and CaPy-S3 were obtained and fully characterized. The adsorption isotherms showed that the maximum adsorption capacities of CaPy, CaPy-S1, CaPy-S2, and CaPy-S3 toward methylene blue (MB) were 270, 1454, 558 and 1381 mg g-1, whereas those for Rhodamine B (RhB) were 183, 2653, 1132, and 1796 mg g-1, respectively. The maximum adsorption capacity toward RhB was the highest reported vale among the currently used synthetic adsorbents. In addition, the pseudo-second-order rate constants of CaPy, CaPy-S1, CaPy-S2, and CaPy-S3 toward MB were 0.00572, 0.488, 2.24, and 0.192 g mg-1 min-1, respectively, and those toward RhB were 0.000234, 0.138, 0.0819, and 0.203 g mg-1 min-1, respectively. The pseudo-second-order rate constant of CaPy-S2 toward MB was 2.24 g mg-1 min-1 indicating one of the highest adsorption speeds. The activation energy of CaPy-S1 for RhB and MB were 121 and 109 kJ mol-1, respectively, demonstrating that the adsorption of both dyes on CaPy-S1 was chemisorption process. Further, the obtained values of Gibbs free energy were negative, revealing that the adsorption process was spontaneous. This work provides an effective approach for improving adsorption performance via post-modification.
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Affiliation(s)
- Lechen Tian
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, China
| | - Shiyuan Zhou
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, China
| | - Jiaojiao Zhao
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, China
| | - Qingfeng Xu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, China.
| | - Najun Li
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, China
| | - Dongyun Chen
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, China
| | - Hua Li
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, China
| | - Jinghui He
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, China
| | - Jianmei Lu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, China.
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Marzeddu S, Décima MA, Camilli L, Bracciale MP, Genova V, Paglia L, Marra F, Damizia M, Stoller M, Chiavola A, Boni MR. Physical-Chemical Characterization of Different Carbon-Based Sorbents for Environmental Applications. MATERIALS (BASEL, SWITZERLAND) 2022; 15:ma15207162. [PMID: 36295233 PMCID: PMC9607634 DOI: 10.3390/ma15207162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/05/2022] [Accepted: 10/10/2022] [Indexed: 05/14/2023]
Abstract
Biochar has been used in various applications, e.g., as a soil conditioner and in remediation of contaminated water, wastewater, and gaseous emissions. In the latter application, biochar was shown to be a suitable alternative to activated carbon, providing high treatment efficiency. Since biochar is a by-product of waste pyrolysis, its use allows for compliance with circular economics. Thus, this research aims to obtain a detailed characterization of three carbonaceous materials: an activated carbon (CARBOSORB NC 1240®) and two biochars (RE-CHAR® and AMBIOTON®). In particular, the objective of this work is to compare the properties of three carbonaceous materials to evaluate whether the application of the two biochars is the same as that of activated carbon. The characterization included, among others, particle size distribution, elemental analysis, pH, scanning electron microscope, pore volume, specific surface area, and ionic exchange capacity. The results showed that CARBOSORB NC 1240® presented a higher specific surface (1126.64 m2/g) than AMBIOTON® (256.23 m2/g) and RE-CHAR® (280.25 m2/g). Both biochar and activated carbon belong to the category of mesoporous media, showing a pore size between 2 and 50 nm (20-500 Å). Moreover, the chemical composition analysis shows similar C, H, and N composition in the three carbonaceous materials while a higher O composition in RE-CHAR® (9.9%) than in CARBOSORB NC 1240 ® (2.67%) and AMBIOTON® (1.10%). Differences in physical and chemical properties are determined by the feedstock and pyrolysis or gasification temperature. The results obtained allowed to compare the selected materials among each other and with other carbonaceous adsorbents.
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Affiliation(s)
- Simone Marzeddu
- Department of Civil, Constructional and Environmental Engineering (DICEA), Faculty of Civil and Industrial Engineering, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy
- Correspondence: ; Tel.: +39-06-44585514
| | - María Alejandra Décima
- Department of Civil, Constructional and Environmental Engineering (DICEA), Faculty of Civil and Industrial Engineering, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy
| | - Luca Camilli
- Department of Civil, Constructional and Environmental Engineering (DICEA), Faculty of Civil and Industrial Engineering, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy
| | - Maria Paola Bracciale
- Department of Chemical Engineering Materials Environment (DICMA), Faculty of Civil and Industrial Engineering, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy
| | - Virgilio Genova
- Department of Chemical Engineering Materials Environment (DICMA), Faculty of Civil and Industrial Engineering, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy
| | - Laura Paglia
- Department of Chemical Engineering Materials Environment (DICMA), Faculty of Civil and Industrial Engineering, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy
| | - Francesco Marra
- Department of Chemical Engineering Materials Environment (DICMA), Faculty of Civil and Industrial Engineering, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy
| | - Martina Damizia
- Department of Chemical Engineering Materials Environment (DICMA), Faculty of Civil and Industrial Engineering, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy
| | - Marco Stoller
- Department of Chemical Engineering Materials Environment (DICMA), Faculty of Civil and Industrial Engineering, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy
| | - Agostina Chiavola
- Department of Civil, Constructional and Environmental Engineering (DICEA), Faculty of Civil and Industrial Engineering, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy
| | - Maria Rosaria Boni
- Department of Civil, Constructional and Environmental Engineering (DICEA), Faculty of Civil and Industrial Engineering, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy
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Daelemans B, Eyley S, Marquez C, Lemmens V, De Vos DE, Thielemans W, Dehaen W, De Feyter S. Adsorptive separation using self-assembly on graphite: from nanoscale to bulk processes. Chem Sci 2022; 13:9035-9046. [PMID: 36091218 PMCID: PMC9365087 DOI: 10.1039/d2sc01354a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 07/07/2022] [Indexed: 11/21/2022] Open
Abstract
Adsorptive separation is a promising lower-energy alternative for traditional industrial separation processes. While carbon-based materials have a long history in adsorptive removal of organic contaminants from solution or gas mixtures, separation using an adsorption/desorption protocol is rarely considered. The main drawbacks are the limited control in bulk adsorption experiments, as often all organic molecules are adsorbed, and lack of desorption methods to retrieve the adsorbed molecules. Using high-resolution on-surface characterization with scanning tunneling microscopy (STM), an increased understanding of the on-surface adsorption behavior under different conditions was obtained. The insight obtained from the nanoscale experiments was used to develop a highly selective separation method using adsorption and desorption on graphite, which was tested for the separation of quinonoid zwitterions. These experiments on adsorptive separation using self-assembly on graphite show its potential and demonstrate the advantage of combining surface characterization techniques with bulk experiments to exploit different possible applications of carbon-based materials.
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Affiliation(s)
- Brent Daelemans
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
- Division of Molecular Design and Synthesis, Department of Chemistry, KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Samuel Eyley
- Sustainable Materials Lab, Department of Chemical Engineering, KU Leuven Campus Kulak Kortrijk, E. Sabbelaan 53 8500 Kortrijk Belgium
| | - Carlos Marquez
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Vincent Lemmens
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Dirk E De Vos
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Wim Thielemans
- Sustainable Materials Lab, Department of Chemical Engineering, KU Leuven Campus Kulak Kortrijk, E. Sabbelaan 53 8500 Kortrijk Belgium
| | - Wim Dehaen
- Division of Molecular Design and Synthesis, Department of Chemistry, KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Steven De Feyter
- Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
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Highly regioselective tandem hydroformylation of substituted styrene using Iminophosphine rhodium complex immobilized on carbon. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.05.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Gentile G, Rosso C, Criado A, Gombac V, Filippini G, Melchionna M, Fornasiero P, Prato M. New insights into the exploitation of oxidized carbon nitrides as heterogeneous base catalysts. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2021.120732] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Low Temperature One-Pot Hydrothermal Carbonization of Corn Straw into Hydrochar for Adsorbing Cadmium (II) in Wastewater. ENERGIES 2021. [DOI: 10.3390/en14248503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Corn straw, a typical agricultural waste, was directly converted into hydrochar with a yield of 77.56% by hydrothermal carbonization at 140–230 °C for 2 h with a solid–liquid ratio of 1:20. The morphology and surface properties were characterized by elemental analysis, specific surface area and pore size analysis and Fourier transform infrared spectroscopy. The results showed that with the increase of hydrothermal reaction temperature, some physical and chemical properties such as the increase of hydrocarbon content, crystallinity, and specific surface area of hydrochar changed significantly. A series of chemical reactions such as dehydration, decarboxylation, and aromatization occurred in the hydrothermal carbonization process so that the prepared hydrochar had rich oxygen-containing functional groups (-HO, C-O-C, C=O) and unique porous structure made the hydrochar prepared at 170 °C had the best removal effect on Cd2+ in solution (5.84 mg/g). These specific conditions could remove Cd2+ and greatly improve the adsorption performance. The pseudo-second-order kinetic model and Freundlich isotherm model could better describe the adsorption behavior of Cd2+. Therefore, corn straw hydrochar as a potential adsorbent for removing Cd2+ from water.
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Sudrajat H, Susanti A, Putri DKY, Hartuti S. Mechanistic insights into the adsorption of methylene blue by particulate durian peel waste in water. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 84:1774-1792. [PMID: 34662312 DOI: 10.2166/wst.2021.361] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This study aims to investigate the adsorption of methylene blue (MB) over particulate durian peel waste, which is chemically activated with hydrogen peroxide. The equilibrium data are well described by the Freundlich isotherm model, which indicates that the MB adsorption takes place predominantly on multilayers and heterogeneous surfaces of the biosorbent. The Freundlich adsorption constants, KF and n, are 11.06 L/g and 2.94, respectively. Thermodynamic data suggest that the MB adsorption occurs spontaneously and endothermically. The enthalpy and entropy for the MB adsorption are obtained as 10.26 kJ/mol and 0.058 kJ/mol K, respectively, in the temperature range of 303-323 K. Based on the stepwise desorption method, the adsorption of MB is dominated by physical interactions, particularly hydrogen bonding.
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Affiliation(s)
- Hanggara Sudrajat
- Department of Chemical Engineering, Faculty of Engineering, Universitas Jember, Jember 68121, Indonesia E-mail:
| | - Ari Susanti
- Department of Chemical Engineering, Faculty of Engineering, Universitas Jember, Jember 68121, Indonesia E-mail:
| | | | - Sri Hartuti
- Department of Environmental and Renewable Energy Systems, Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
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12
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Popoola TJ, Okoronkwo AE, Oluwasina OO, Adebayo MA. Preparation, characterization, and application of a homemade graphene for the removal of Congo red from aqueous solutions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:52174-52187. [PMID: 34002313 DOI: 10.1007/s11356-021-14434-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 05/11/2021] [Indexed: 06/12/2023]
Abstract
Ethylene diaminetetraacetic acid (EDTA)-functionalized graphene was synthesized from Nigerian coal using a chemical exfoliation method and the graphene was applied for the removal of Congo red dye from aqueous solutions. The synthesized coal graphene and the raw coal were characterized using Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) spectroscopy, scanning electron microscopy (SEM)-energy-dispersive X-ray (EDX) spectroscopy, measurement of pHpzc (pH of point of zero charge), and Boehm titrations. The SEM data revealed surface roughness which is enhanced in the prepared graphene while the EDX revealed an increase in carbon content, the main constituent of graphene, from about 26% in the raw coal to about 80% in the prepared graphene. Various adsorption variables, such as pH, contact time, concentration of Congo red, and temperature, were varied for the removal of the dye using raw coal and the synthesized coal graphene. The Liu isotherm gave the best fit of the equilibrium data than the Langmuir, Freundlich, and Dubinin-Radushkevich models. The maximum adsorption capacities of the raw coal and synthesized coal graphene at 25°C are 109.1 mg/g and 129.0 mg/g, respectively. The Avrami fractional-order kinetic model was the best model for description of the kinetic data. The model had the lowest values of standard deviation than the pseudo-first-order and pseudo-second-order models. The adsorption process of the two materials occurred via two stages as proved by intraparticle diffusion model. The adsorption process of the Congo red removal was spontaneous, feasible, and endothermic. The study conclusively revealed the graphene nanomaterial to be a viable adsorbent for textile wastewater treatment.
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Affiliation(s)
- Temilolu J Popoola
- Department of Chemistry, The Federal University of Technology, Akure, Ondo State, Nigeria
| | - Afamefuna E Okoronkwo
- Department of Chemistry, The Federal University of Technology, Akure, Ondo State, Nigeria
| | - Olugbenga O Oluwasina
- Department of Chemistry, The Federal University of Technology, Akure, Ondo State, Nigeria
| | - Matthew A Adebayo
- Department of Chemistry, The Federal University of Technology, Akure, Ondo State, Nigeria.
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13
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Zhang Y, Melchionna M, Medved M, Błoński P, Steklý T, Bakandritsos A, Kment Š, Zbořil R, Otyepka M, Fornaserio P, Naldoni A. Enhanced On‐Site Hydrogen Peroxide Electrosynthesis by a Selectively Carboxylated N‐Doped Graphene Catalyst. ChemCatChem 2021. [DOI: 10.1002/cctc.202100805] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yu Zhang
- Czech Advanced Technology and Research Institute Regional Centre of Advanced Technologies and Materials Palacky University Slechtitelu 27 77900 Olomouc Czech Republic
| | - Michele Melchionna
- Department of Chemical and Pharmaceutical Sciences, INSTM University of Trieste Via L. Giorgieri 1 34127 Trieste Italy
| | - Miroslav Medved
- Czech Advanced Technology and Research Institute Regional Centre of Advanced Technologies and Materials Palacky University Slechtitelu 27 77900 Olomouc Czech Republic
| | - Piotr Błoński
- Czech Advanced Technology and Research Institute Regional Centre of Advanced Technologies and Materials Palacky University Slechtitelu 27 77900 Olomouc Czech Republic
| | - Tomáš Steklý
- Czech Advanced Technology and Research Institute Regional Centre of Advanced Technologies and Materials Palacky University Slechtitelu 27 77900 Olomouc Czech Republic
| | - Aristides Bakandritsos
- Czech Advanced Technology and Research Institute Regional Centre of Advanced Technologies and Materials Palacky University Slechtitelu 27 77900 Olomouc Czech Republic
- Nanotechnology Centre CEET VŠB – Technical University Ostrava 17 listopadu 2172/15 Ostrava-Poruba 70800 Czech Republic
| | - Štěpán Kment
- Czech Advanced Technology and Research Institute Regional Centre of Advanced Technologies and Materials Palacky University Slechtitelu 27 77900 Olomouc Czech Republic
- Nanotechnology Centre CEET VŠB – Technical University Ostrava 17 listopadu 2172/15 Ostrava-Poruba 70800 Czech Republic
| | - Radek Zbořil
- Czech Advanced Technology and Research Institute Regional Centre of Advanced Technologies and Materials Palacky University Slechtitelu 27 77900 Olomouc Czech Republic
- Nanotechnology Centre CEET VŠB – Technical University Ostrava 17 listopadu 2172/15 Ostrava-Poruba 70800 Czech Republic
| | - Michal Otyepka
- Czech Advanced Technology and Research Institute Regional Centre of Advanced Technologies and Materials Palacky University Slechtitelu 27 77900 Olomouc Czech Republic
- IT4Innovations, VSB – Technical University of Ostrava 17. listopadu 2172/15 70800 Ostrava-Poruba Czech Republic
| | - Paolo Fornaserio
- Department of Chemical and Pharmaceutical Sciences, INSTM University of Trieste Via L. Giorgieri 1 34127 Trieste Italy
| | - Alberto Naldoni
- Czech Advanced Technology and Research Institute Regional Centre of Advanced Technologies and Materials Palacky University Slechtitelu 27 77900 Olomouc Czech Republic
- Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China Chengdu 610054 P. R. China
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14
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Neri G, Fazio E, Nostro A, Mineo PG, Scala A, Rescifina A, Piperno A. Shedding Light on the Chemistry and the Properties of Münchnone Functionalized Graphene. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1629. [PMID: 34206184 PMCID: PMC8307402 DOI: 10.3390/nano11071629] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/06/2021] [Accepted: 06/18/2021] [Indexed: 12/23/2022]
Abstract
Münchnones are mesoionic oxazolium 5-oxides with azomethine ylide characteristics that provide pyrrole derivatives by a 1,3-dipolar cycloaddition (1,3-DC) reaction with acetylenic dipolarophiles. Their reactivity was widely exploited for the synthesis of small molecules, but it was not yet investigated for the functionalization of graphene-based materials. Herein, we report our results on the preparation of münchnone functionalized graphene via cycloaddition reactions, followed by the spontaneous loss of carbon dioxide and its further chemical modification to silver/nisin nanocomposites to confer biological properties. A direct functionalization of graphite flakes into few-layers graphene decorated with pyrrole rings on the layer edge was achieved. The success of functionalization was confirmed by micro-Raman and X-ray photoelectron spectroscopies, scanning transmission electron microscopy, and thermogravimetric analysis. The 1,3-DC reactions of münchnone dipole with graphene have been investigated using density functional theory to model graphene. Finally, we explored the reactivity and the processability of münchnone functionalized graphene to produce enriched nano biomaterials endowed with antimicrobial properties.
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Affiliation(s)
- Giulia Neri
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (G.N.); (A.N.); (A.S.)
| | - Enza Fazio
- Department of Mathematical and Computational Sciences, Physics Science and Earth Science, University of Messina, V.le F. Stagno d’Alcontres 31, I-98166 Messina, Italy
| | - Antonia Nostro
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (G.N.); (A.N.); (A.S.)
| | - Placido Giuseppe Mineo
- Department of Chemical Sciences, University of Catania, V.le A. Doria, 95125 Catania, Italy;
| | - Angela Scala
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (G.N.); (A.N.); (A.S.)
| | - Antonio Rescifina
- Department of Drug and Health Sciences, University of Catania, V.le A. Doria, 95125 Catania, Italy
| | - Anna Piperno
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (G.N.); (A.N.); (A.S.)
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15
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Investigating the effective carbon material for thermal chemical vapor deposition using aniline to enhance As(V) adsorption capacity of activated carbon. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2974-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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16
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Yin W, Zhao C, Xu J. Enhanced adsorption of Cd (II) from aqueous solution by a shrimp bran modified Typha orientalis biochar. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:37092-37100. [PMID: 31745770 DOI: 10.1007/s11356-019-06658-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 10/01/2019] [Indexed: 05/13/2023]
Abstract
The biochar which was characterized with well-developed facial structure and O-/N-containing functional groups could effectively remove Cd (II) from water. In this paper, Typha orientalis-based biochar (BCS) with well-developed N containing functional groups was modified with shrimp bran which was rich in crude protein for the first time. There are more well-developed O-/N-containing functional groups in the structure of BCS than that of pure Typha orientalis-based biochar without any modification (BC), and this conclusion was depended on their comparisons of Brunauer-Emmett-Teller (BET), X-ray diffraction (XRD), scanning electron microscopy (SEM), elemental analysis (EA), Boehm titration, Fourier transform infrared (FTIR), and other characterization techniques. Moreover, according to the experiment, the phenomenon that the adsorption capacity of Cd(II) on these two adsorbents (BCs) decreased with the increase of solution ionic strength could be carried out. The Cd(II) adsorption studies combined with X-ray photoelectron spectroscopy (XPS) analysis revealed that the adsorption mechanism was mainly attributed to physical microporous filtration and chemical interaction between Cd(II) and the surface functional groups (surface complexation, ion exchange, and electrostatic attraction).
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Affiliation(s)
- Wenjun Yin
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, 250101, China
| | - Congcong Zhao
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan, 250014, People's Republic of China
| | - Jingtao Xu
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, 250101, China.
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17
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Yin W, Zhang W, Zhao C, Xu J. Evaluation of Removal Efficiency of Ni(II) and 2,4-DCP Using in Situ Nitrogen-Doped Biochar Modified with Aquatic Animal Waste. ACS OMEGA 2019; 4:19366-19374. [PMID: 31763561 PMCID: PMC6868889 DOI: 10.1021/acsomega.9b02769] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 10/23/2019] [Indexed: 05/20/2023]
Abstract
Currently, biochar (BC) has shown promising potential in groundwater and surface-water remediation. In this work, Trapa natans husks based biochar (TBC) was prepared and modified with aquatic animal waste (shrimp and crab) to produce shrimp-modified biochar (SBC) and crab-modified biochar (CBC), respectively. The as-prepared BCs (TBC, SBC, and CBC) were characterized by X-ray diffraction, scanning electron microscopy, elemental analysis, Boehm titration, Fourier transform infrared, and X-ray photoelectron spectroscopy. SBC and CBC had more developed nitrogen-containing functional groups than TBC, which indicates that the crude proteins in shrimp and crab have successfully achieved in situ nitrogen doping. Results of batch experiments showed that SBC and CBC had larger groundwater pollutants (2,4-dichlorophenol (2,4-DCP) and Ni(II)) adsorption capacities than TBC. According to batch adsorption experiment and characterization analysis results, the proposed adsorption mechanism of 2,4-DCP includes hydrogen bonding and π-π electron-donor-acceptor interaction, while the mechanism for Ni(II) adsorption are proposed to be surface complexation, ion exchange, and electrostatic attraction.
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Affiliation(s)
- Wenjun Yin
- State
Key Laboratory of Pollution Control and Resource Reuse, College of
Environmental Science and Engineering, Tongji
University, Shanghai 200092, China
| | - Wei Zhang
- State
Key Laboratory of Pollution Control and Resource Reuse, College of
Environmental Science and Engineering, Tongji
University, Shanghai 200092, China
| | - Congcong Zhao
- College
of Geography and Environment, Collaborative Innovation Center of Human-Nature
and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, China
| | - Jingtao Xu
- School
of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, China
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18
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Abstract
By means of first principles calculations we studied the occurrence of cycloaddition reactions on the buffer layer of silicon carbide. Interestingly, the presence of the substrate favors the 1,3 cycloaddition instead of the [2+2] or [4+2] ones.
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Affiliation(s)
- Pablo A. Denis
- Computational Nanotechnology
- DETEMA
- Facultad de Química
- UDELAR
- 11800 Montevideo
| | - C. Pereyra Huelmo
- Computational Nanotechnology
- DETEMA
- Facultad de Química
- UDELAR
- 11800 Montevideo
| | - Federico Iribarne
- Computational Nanotechnology
- DETEMA
- Facultad de Química
- UDELAR
- 11800 Montevideo
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