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Shen D, Imbault AL, Balati G, Ouyang J, Li Y. Dissolution of g-C3N4 Using Zinc Chloride Molten Salt Hydrates for Nanobelt Fabrication and Photocatalytic H2O2 Production. Chemistry 2024; 30:e202401847. [PMID: 38924258 DOI: 10.1002/chem.202401847] [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: 05/12/2024] [Revised: 06/17/2024] [Accepted: 06/25/2024] [Indexed: 06/28/2024]
Abstract
Graphitic-carbon nitride (g-C3N4), a metal-free two-dimensional layered semiconductor material, holds great potential for energy conversion, environmental remediation, and sensing. However, the limited solubility of g-C3N4 in conventional solvents hinders its widespread application. Improving the dissolution of g-C3N4 in the liquid phase is highly desired but challenging. Herein, we report an innovative approach to dissolve g-C3N4 using ZnCl2 molten salt hydrates. The solubility of g-C3N4 in the solution reaches up to 200 mg mL-1. Density functional theory (DFT) results suggest that ZnCl+H2O is the key species that leads to charge redistribution on g-C3N4 surface and promotes the dissolution of carbon nitride in the solution. Furthermore, through dilution, the dissolved carbon nitride can be effectively recovered while maintaining its intrinsic chemical structure. The resultant regenerated C3N4 (r-C3N4) exhibits nanobelt morphology and demonstrates a substantially improved photocatalytic activity in H2O2 production. The rate of H2O2 production over the r-C3N4 reaches 20,228 μmol g-1 h-1, which is 6.2 times higher than that of pristine g-C3N4. This green and efficient dissolution route of g-C3N4 offers an effective approach for its diverse applications.
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Affiliation(s)
- Dazhi Shen
- College of Chemistry and Environmental Science, Fujian Province Key Laboratory of Modern Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou, 36300, China
| | - Alexander Luis Imbault
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Ontario, M5S 3E5, Canada
| | - Gulimire Balati
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Jie Ouyang
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Yunhua Li
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
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2
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Saleem U, Jamil R, Nadeem H, Ahmed H, Abdelmohse SAM, Alanazi MM, Iqbal J. Sensing potential of C 6N 8 for ammonia (NH 3) and nitrogen triflouride (NF 3): A DFT study. J Mol Graph Model 2024; 127:108701. [PMID: 38194862 DOI: 10.1016/j.jmgm.2024.108701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 12/28/2023] [Accepted: 01/02/2024] [Indexed: 01/11/2024]
Abstract
The detection of toxic gases (NH3 and NF3) in regulating and monitoring air quality in the atmosphere has drawn a lot of attention. Herein, we explored a novel material (C6N8) for the detection of the important but toxic gases (NH3 and NF3). We investigated the interactions of the NH3 and NF3 with C6N8 through DFT at B3LYP, ωB97XD, and non-DFT M06-2X. Counterpoise interaction energy values (Eint. cp.) of NH3@C6N8 and NF3@C6N8 are -0.45 eV and -3.51 eV (for B3LYP), -0.42 eV and 2.11 eV (for ωB97XD) and -0.44 eV and -3.41eV (for M06-2X), respectively. Complexes having the most stable configurations were then subjected to further analyses including frontier molecular orbitals, H-L gap, and conductivity of complexes. An increase in the H-L gap in complexes (NH3@C6N8 and NF3@C6N8) is observed. The conductivity of NH3@C6N8 and NF3@C6N8 decreases as compared to C6N8. A considerable change in dipole moment was seen in C6N8 before and after complex formation. This is because of the shifting of charge between C6N8 and gases (NH3 and NF3). CHELPG and NBO charge analysis were used to evaluate the amount of charge transfer between C6N8 and gases. These analyses demonstrate that NH3 and NF3 withdraw electron density from C6N8. It was found that NH3 tends to be physically adsorbed on C6N8 while NF3 adsorbs chemically on C6N8. NCI and QTAIM analyses were performed to investigate the kind of interactions between the surface (C6N8) and gases (NH3 and NF3). Furthermore, the recovery time of NH3@C6N8 and NF3@C6N8 shows that C6N8 can be a better choice for sensing NH3 and NF3 gases.
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Affiliation(s)
- Uzma Saleem
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Rabia Jamil
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Hafsah Nadeem
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Hina Ahmed
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Shaimaa A M Abdelmohse
- Department of Physics, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia
| | - Meznah M Alanazi
- Department of Physics, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia
| | - Javed Iqbal
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan.
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Fan D, Wang Z, Yin M, Li H, Hu H, Guo F, Feng Z, Li J, Zhang D, Li Z, Zhu M. The metal atomic substitution induced half-metallic properties, metallic properties and semiconducting properties in X-N 4 nanoribbons. Phys Chem Chem Phys 2023; 25:31257-31269. [PMID: 37955269 DOI: 10.1039/d3cp03983h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
Armchair X-N4 nanoribbons (X-AN4NRs) and zigzag X-N4 nanoribbons (X-ZN4NRs) were calculated using first-principles calculations. Ferromagnets (FM) were found to be the most stable among the initial magnetic structures. Furthermore, nanoribbons were found to be thermodynamically stable through molecular dynamics simulations. It can be found that when the temperature and total energy of X-AN4NRs and X-ZN4NRs change with time, they have a small oscillation range, which confirms the dynamic stability of X-AN4NRs and X-ZN4NRs under realistic experimental conditions. Subsequently, the magnetic moment analysis of the X-AN4NRs and X-ZN4NRs revealed that the magnetic moment of the X-AN4NRs is significantly smaller than that of X-ZN4NRs. The band structure and density of states (DOS) of the X-AN4NRs and X-ZN4NRs were also computed, which indicate different properties for different transition metal nanoribbons. The results suggest that different edge structures and transition metals can influence the electronic structure of the nanoribbons. Moreover, based on the band structure and DOS, it was found that Mn-AN4NRs and Fe-ZN4NRs exhibit half-metallic properties. They can generate 100% polarized currents at the Fermi level, providing valuable information for developing spintronic devices. Our study has a positive value for regulating the properties of the nanoribbons by metal atom substitution.
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Affiliation(s)
- Dong Fan
- School of Physics Science and Information Technology & Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, 252000, China.
| | - Zhihao Wang
- School of Physics Science and Information Technology & Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, 252000, China.
| | - Maoye Yin
- School of Physics Science and Information Technology & Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, 252000, China.
| | - Hengshuai Li
- School of Physics Science and Information Technology & Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, 252000, China.
| | - Haiquan Hu
- School of Physics Science and Information Technology & Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, 252000, China.
| | - Feng Guo
- School of Physics Science and Information Technology & Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, 252000, China.
| | - Zhenbao Feng
- School of Physics Science and Information Technology & Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, 252000, China.
| | - Jun Li
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252000, China
| | - Dong Zhang
- School of Physics Science and Information Technology & Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, 252000, China.
| | - Zhi Li
- School of Physics Science and Information Technology & Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, 252000, China.
| | - Minghui Zhu
- School of Physics Science and Information Technology & Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, 252000, China.
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Jin CC, Liu DM, Zhang LX. An Emerging Family of Piezocatalysts: 2D Piezoelectric Materials. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303586. [PMID: 37386814 DOI: 10.1002/smll.202303586] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/14/2023] [Indexed: 07/01/2023]
Abstract
Piezocatalysis is an emerging technique that holds great promise for the conversion of ubiquitous mechanical energy into electrochemical energy through piezoelectric effect. However, mechanical energies in natural environment (such as wind energy, water flow energy, and noise) are typically tiny, scattered, and featured with low frequency and low power. Therefore, a high response to these tiny mechanical energies is critical to achieving high piezocatalytic performance. In comparison to nanoparticles or 1D piezoelectric materials, 2D piezoelectric materials possess characteristics such as high flexibility, easy deformation, large surface area, and rich active sites, showing more promise in future for practical applications. In this review, state-of-the-art research progresses on 2D piezoelectric materials and their applications in piezocatalysis are provided. First, a detailed description of 2D piezoelectric materials are offered. Then a comprehensive summary of the piezocatalysis technique is presented and examines the piezocatalysis applications of 2D piezoelectric materials in various fields, including environmental remediation, small-molecule catalysis, and biomedicine. Finally, the main challenges and prospects of 2D piezoelectric materials and their applications in piezocatalysis are discussed. It is expected that this review can fuel the practical application of 2D piezoelectric materials in piezocatalysis.
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Affiliation(s)
- Cheng-Chao Jin
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou, 310024, P. R. China
- Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China
| | - Dai-Ming Liu
- College of Electromechanical Engineering, Shandong Engineering Laboratory for Preparation and Application of High-performance Carbon-Materials, Qingdao University of Science & Technology, 99 Songling Road, Qingdao, 266061, P. R. China
| | - Ling-Xia Zhang
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou, 310024, P. R. China
- Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China
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5
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Bao J, Ding K, Zhu Y. An electrochemical biosensor for detecting DNA methylation based on AuNPs/rGO/g-C 3N 4 nanocomposite. Anal Biochem 2023; 673:115180. [PMID: 37146956 DOI: 10.1016/j.ab.2023.115180] [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: 02/25/2023] [Revised: 04/20/2023] [Accepted: 05/02/2023] [Indexed: 05/07/2023]
Abstract
DNA methylation as a ubiquitously regulation is closely associated with cell proliferation and differentiation. Growing data shows that aberrant methylation contributes to disease incidence, especially in tumorigenesis. The approach for identifying DNA methylation usually depends on treatment of sodium bisulfite, which is time-consuming and conversion-insufficient. Here, with a special biosensor, we establish an alternative approach for detecting DNA methylation. The biosensor is consisted of two parts, which are gold electrode and nanocomposite (AuNPs/rGO/g-C3N4). Nanocomposite was fabricated by three components, which are gold nanoparticles (AuNPs), reduced graphene oxide (rGO) and graphite carbon nitride (g-C3N4). For methylated DNA detection, the target DNA was captured by probe DNA immobilized on the gold electrode surface through thiolating process and subjected to hybrid with anti-methylated cytosine conjugated to nanocomposite. When the methylated cytosines in target DNA were recognized by anti-methylated cytosine, a change of electrochemical signals will be observed. With different size of target DNAs, the concentration and methylation level were tested. It is shown that in short size methylated DNA fragment, the linear range and LOD of concentration is 10-7M-10-15M and 0.74 fM respectively; in longer size methylated DNA, the linear range of methylation proportion and LOD of copy number is 3%-84% and 103 respectively. Also, this approach has a high sensitivity and specificity as well as anti-disturbing ability.
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Affiliation(s)
- Junming Bao
- College of Life Sciences and Bioengineering, Beijing Jiaotong University, Beijing, 100044, PR China
| | - Kejian Ding
- College of Life Sciences and Bioengineering, Beijing Jiaotong University, Beijing, 100044, PR China.
| | - Yunfeng Zhu
- College of Life Sciences and Bioengineering, Beijing Jiaotong University, Beijing, 100044, PR China.
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6
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Guardado A, Marisol IR, Mayén-Mondragón R, Sánchez M. Hydrogen adsorption on lithium clusters coordinated to a gC 3N 4 cavity. J Mol Graph Model 2023; 122:108491. [PMID: 37126909 DOI: 10.1016/j.jmgm.2023.108491] [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: 08/24/2022] [Revised: 01/30/2023] [Accepted: 04/11/2023] [Indexed: 05/03/2023]
Abstract
The search of new materials having suitable characteristics to trap hydrogen for fuel applications is greatly challenging due to the stringent requirements that such materials must meet. In this sense, with the aid of computational chemistry, significant advances can be achieved. The present work explores the adsorption of hydrogen molecules by lithium clusters (Lin, where n = 1-6) coordinated to a graphitic carbon nitride (heptazine, gC3N4) cavity. The study was conducted using the density functional theory (M06-2X-D3) in combination with the def2-TZVP basis set. Our results suggest that lithium atoms in the gC3N4-cavity can coordinate up to 10 hydrogen molecules with bond energies in the range -0.10 to -0.19 eV. The [gC3N4Li5]+ and [gC3N4Li6] systems resulted to be the most promising in terms of lithium coordination. They feature the highest stabilization energies for hydrogen adsorption. According to the calculated Gibbs free energies for these systems, H2 adsorption remains a spontaneous process even at 400 K.
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Affiliation(s)
- Alicia Guardado
- Centro de Investigación en Materiales Avanzados, S.C., Alianza Norte 202, PIIT, Carretera Monterrey-Aeropuerto Km. 10, C. P. 66628, Apodaca, Nuevo León, Mexico
| | - Ibarra-Rodríguez Marisol
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Ciudad Universitaria, 66451, Nuevo León, Mexico.
| | - Rodrigo Mayén-Mondragón
- Departamento de Ingeniería Metalúrgica, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510, Ciudad de México, Mexico
| | - Mario Sánchez
- Centro de Investigación en Materiales Avanzados, S.C., Alianza Norte 202, PIIT, Carretera Monterrey-Aeropuerto Km. 10, C. P. 66628, Apodaca, Nuevo León, Mexico.
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7
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Bhoyar T, Vidyasagar D, Umare SS. Mitigating phytotoxicity of tetracycline by metal-free 8-hydroxyquinoline functionalized carbon nitride photocatalyst. J Environ Sci (China) 2023; 125:37-46. [PMID: 36375922 DOI: 10.1016/j.jes.2021.10.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 10/18/2021] [Accepted: 10/29/2021] [Indexed: 06/16/2023]
Abstract
Photooxidative removal of pharmaceuticals and organic dyes is an effective way to eliminate growing micropollutants. However, photooxidation often results in byproducts as secondary hazardous substances such as phytotoxins. Herein, we found that photooxidation of common antibiotic tetracycline hydrochloride (TCH) over a metal-free 8-hydroxyquinoline (8-HQ) functionalized carbon nitride (CN) photocatalyst significantly reduces the TCH phytotoxic effect. The phytotoxicity test of photocatalytic treated TCH-solution evaluated towards seed growth of Cicer arietinum plant model endowed natural root and shoot growth. This study highlights the conceptual insights in designing of metal-free photocatalyst for environmental remediation.
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Affiliation(s)
- Toshali Bhoyar
- Materials and Catalysis Laboratory, Department of Chemistry, Visvesvaraya National Institute of Technology (VNIT), Nagpur 440010, India
| | - Devthade Vidyasagar
- Materials and Catalysis Laboratory, Department of Chemistry, Visvesvaraya National Institute of Technology (VNIT), Nagpur 440010, India; School of Material Science and Engineering, Kyungpook National University, Daegu 41566, Korea.
| | - Suresh S Umare
- Materials and Catalysis Laboratory, Department of Chemistry, Visvesvaraya National Institute of Technology (VNIT), Nagpur 440010, India.
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8
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Fan D, Yin M, Zhu M, Li H, Wang Z, Hu H, Guo F, Feng Z, Li J, Hu X, Zhang D, Li Z. Tailored modifications of the electronic properties of g-C 3N 4/C 2N- h2D nanoribbons by first-principles calculations. Phys Chem Chem Phys 2023; 25:1153-1160. [PMID: 36519563 DOI: 10.1039/d2cp05394b] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
The electronic structure of g-C3N4/C2N-h2D nanoribbons was investigated by first-principles calculations. As a splice structure, we first computed the three magnetic coupled states of g-C3N4/C2N-h2D nanoribbons. After self-consistent calculations, both the antiferromagnetic and paramagnetic coupling states become ferromagnetic coupling states. It was proved that the ferromagnetic coupling state is the most stable state. Thermodynamic stability was subsequently verified based on the ferromagnetic coupling state. It had a steady electron spin polarization, with a magnetic moment of 1 μB for each primitive cell. It changed from a direct band-gap semiconductor to an indirect band-gap semiconductor and exhibited the properties of a narrow band gap semiconductor through the analysis of the energy band and charge density. To transform the electronic structure, we adsorbed different transition metals in g-C3N4/C2N-h2D nanoribbons. We investigated the electronic structure of g-C3N4/C2N-h2D nanoribbons adsorbed by different transition metals. It was shown that the electronic structure of g-C3N4/C2N-h2D nanoribbons could be regulated by the adsorption of different transition metal atoms. Moreover, the adsorption of Fe and Ni can generate a 100% polarized current in the Fermi surface, which will provide more application potential for spintronics devices.
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Affiliation(s)
- Dong Fan
- School of Physics Science and Information Technology & Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, 252000, China.
| | - Maoye Yin
- School of Physics Science and Information Technology & Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, 252000, China.
| | - Minghui Zhu
- School of Physics Science and Information Technology & Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, 252000, China.
| | - Hengshuai Li
- School of Physics Science and Information Technology & Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, 252000, China.
| | - Zhihao Wang
- School of Physics Science and Information Technology & Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, 252000, China.
| | - Haiquan Hu
- School of Physics Science and Information Technology & Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, 252000, China.
| | - Feng Guo
- School of Physics Science and Information Technology & Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, 252000, China.
| | - Zhenbao Feng
- School of Physics Science and Information Technology & Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, 252000, China.
| | - Jun Li
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252000, China
| | - Xiaocheng Hu
- School of Physics Science and Information Technology & Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, 252000, China.
| | - Dong Zhang
- School of Physics Science and Information Technology & Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, 252000, China.
| | - Zhi Li
- School of Physics Science and Information Technology & Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, 252000, China.
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Synergism between chemisorption and unique electron transfer pathway in S-scheme AgI/g-C3N4 heterojunction for improving the photocatalytic H2 evolution. J Colloid Interface Sci 2022; 631:269-280. [DOI: 10.1016/j.jcis.2022.10.168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 10/31/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022]
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10
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Vosegaard ES, Thomsen MK, Krause L, Grønbech TBE, Mamakhel A, Takahashi S, Nishibori E, Iversen BB. Synchrotron X-ray Electron Density Analysis of Chemical Bonding in the Graphitic Carbon Nitride Precursor Melamine. Chemistry 2022; 28:e202201295. [PMID: 35760733 PMCID: PMC9804335 DOI: 10.1002/chem.202201295] [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: 04/26/2022] [Indexed: 01/05/2023]
Abstract
Melamine is a precursor and building block for graphitic carbon nitride (g-CN) materials, a group of layered materials showing great promise for catalytic applications. The synthetic pathway to g-CN includes a polycondensation reaction of melamine by evaporation of ammonia. Melamine molecules in the crystal organize into wave-like planes with an interlayer distance of 3.3 Å similar to that of g-CN. Here we present an extensive investigation of the experimental electron density of melamine obtained from modelling of synchrotron radiation X-ray single-crystal diffraction data measured at 25 K with special focus on the molecular geometry and intermolecular interactions. Both intra- and interlayer structures are dominated by hydrogen bonding and π-interactions. Theoretical gas-phase optimizations of the experimental molecular geometry show that bond lengths and angles for atoms in the same chemical environment (C-N bonds in the ring, amine groups) differ significantly more for the experimental geometry than for the gas-phase-optimized geometries, indicating that intermolecular interactions in the crystal affects the molecular geometry. In the experimental crystal geometry, one amine group has significantly more sp3 -like character than the others, hinting at a possible formation mechanism of g-CN. Topological analysis and energy frameworks show that the nitrogen atom in this amine group participates in weak intralayer hydrogen bonding. We hypothesize that melamine condenses to g-CN within the layers and that the unique amine group plays a key role in the condensation process.
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Affiliation(s)
- Emilie S. Vosegaard
- Department of Chemistry and iNANOAarhus UniversityLangelandsgade 1408000Aarhus CDenmark
| | - Maja K. Thomsen
- Department of Chemistry and iNANOAarhus UniversityLangelandsgade 1408000Aarhus CDenmark
| | - Lennard Krause
- Department of Chemistry and iNANOAarhus UniversityLangelandsgade 1408000Aarhus CDenmark
| | - Thomas B. E. Grønbech
- Department of Chemistry and iNANOAarhus UniversityLangelandsgade 1408000Aarhus CDenmark
| | - Aref Mamakhel
- Department of Chemistry and iNANOAarhus UniversityLangelandsgade 1408000Aarhus CDenmark
| | - Seiya Takahashi
- Department of PhysicsFaculty of Pure and Applied Sciences andTsukuba Research Center for Energy Materials Science (TREMS)University of TsukubaTsukubaIbaraki305-8571Japan
| | - Eiji Nishibori
- Department of PhysicsFaculty of Pure and Applied Sciences andTsukuba Research Center for Energy Materials Science (TREMS)University of TsukubaTsukubaIbaraki305-8571Japan
| | - Bo B. Iversen
- Department of Chemistry and iNANOAarhus UniversityLangelandsgade 1408000Aarhus CDenmark
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11
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Zhang Y, Cao X, Cao Z. Unraveling the Catalytic Performance of the Nonprecious Metal Single-Atom-Embedded Graphitic s-Triazine-Based C 3N 4 for CO 2 Hydrogenation. ACS APPLIED MATERIALS & INTERFACES 2022; 14:35844-35853. [PMID: 35904900 DOI: 10.1021/acsami.2c09813] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Graphitic carbon nitride (g-C3N4) is regarded as a promising potent photoelectrocatalyst for CO2 reduction. Here, extensive first-principles calculations and ab initio molecular dynamics (AIMD) simulations are performed to systematically explore the structural and electronic properties of nonprecious metal single-atom-embedded graphitic s-triazine-based C3N4 (M@gt-C3N4, M = Mn, Fe, Co, Ni, Cu, and Mo) monolayer materials and their catalytic performances as the single-atom catalysts (SACs) for CO2 hydrogenation to HCOOH, CO, and CH3OH. It is found that the atomically dispersed non-noble metal Mn, Fe, Co, and Mo sites anchored on gt-C3N4 can efficiently activate both H2 and CO2, and their coadsorbed state serves as a precursor to the hydrogenation of CO2 to different C1 products. Among these SACs (M@gt-C3N4, M = Mn, Fe, Co, and Mo), Co@gt-C3N4 was predicted to have the best catalytic performance for CO2 hydrogenation to C1 products, although their mechanistic details are somewhat different. The predicted energy barriers of the rate-determining steps for the conversion of CO2 into HCOOH, CO, and CH3OH on Co@gt-C3N4 are 0.58, 0.67, and 1.19 eV, respectively. The desorption of products is generally energy-demanding, but it can be facilitated remarkably by the subsequent adsorption of H2, which regenerates M@gt-C3N4 for the next catalytic cycle. The present study demonstrates that the catalytic performance of gt-C3N4 can be well regulated by embedding the non-noble metal single atom, and the porous gt-C3N4 is nicely suited for the construction of high-performance single-atom catalysts.
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Affiliation(s)
- Yue Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xinrui Cao
- Department of Physics and Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Xiamen University, Xiamen 361005, China
| | - Zexing Cao
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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12
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Xu K, Cui K, Cui M, Liu X, Chen X, Tang X, Wang X. Electronic structure modulation of g-C3N4 by Hydroxyl-grafting for enhanced photocatalytic peroxymonosulfate Activation: Combined experimental and theoretical analysis. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Hydroxyl-functionalized ultra-thin graphitic-carbon-nitrite nanosheets-accommodated polyvinyl alcohol membrane for pervaporation of isopropanol/water mixture. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2021.10.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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14
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Synergistic effect of KCl mixing and melamine/urea mixture in the synthesis of g-C3N4 for photocatalytic removal of tetracycline. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2021.11.036] [Citation(s) in RCA: 5] [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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15
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Purdy AP, Maza WA, Chaloux BL, Yesinowski JP, Lanetti MG, McPherson KN, Epshteyn A. A solid, amorphous, lithiated carbon phosphonitride displaying lithium ion conductivity. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2021.122649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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16
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Zhang T, Schilling W, Khan SU, Ching HYV, Lu C, Chen J, Jaworski A, Barcaro G, Monti S, De Wael K, Slabon A, Das S. Atomic-Level Understanding for the Enhanced Generation of Hydrogen Peroxide by the Introduction of an Aryl Amino Group in Polymeric Carbon Nitrides. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03733] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tong Zhang
- Department of Chemistry, Universiteit Antwerpen, Groenenborgerlaan 171, 2020 Antwerpen, Belgium
| | - Waldemar Schilling
- Department of Chemistry, Universiteit Antwerpen, Groenenborgerlaan 171, 2020 Antwerpen, Belgium
| | - Shahid Ullah Khan
- Department of Bioscience Engineering, Universiteit Antwerpen, Groenenborgerlaan 171, 2020 Antwerpen, Belgium
| | | | - Can Lu
- Department of Materials and Environmental Chemistry, Stockholm University, 10691 Stockholm, Sweden
| | - Jianhong Chen
- Department of Materials and Environmental Chemistry, Stockholm University, 10691 Stockholm, Sweden
| | - Aleksander Jaworski
- Department of Materials and Environmental Chemistry, Stockholm University, 10691 Stockholm, Sweden
| | - Giovanni Barcaro
- CNR-IPCF─Institute for Chemical and Physical Processes, 56124 Pisa, Italy
| | - Susanna Monti
- CNR-ICCOM─Institute of Chemistry of Organometallic Compounds, 56124 Pisa, Italy
| | - Karolien De Wael
- Department of Bioscience Engineering, Universiteit Antwerpen, Groenenborgerlaan 171, 2020 Antwerpen, Belgium
| | - Adam Slabon
- Department of Materials and Environmental Chemistry, Stockholm University, 10691 Stockholm, Sweden
| | - Shoubhik Das
- Department of Chemistry, Universiteit Antwerpen, Groenenborgerlaan 171, 2020 Antwerpen, Belgium
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17
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Zhou Y, Zeng F, Sun C, Wu J, Xie Y, Zhang F, Rao S, Wang F, Zhang J, Zhao J, Li S. Gd2O3 nanoparticles modified g-C3N4 with enhanced photocatalysis activity for degradation of organic pollutants. J RARE EARTH 2021. [DOI: 10.1016/j.jre.2021.06.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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18
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Ye S, Feng C, Wang J, Tang L. Preparation and application of defective graphite phase carbon nitride photocatalysts. CHINESE SCIENCE BULLETIN-CHINESE 2021. [DOI: 10.1360/tb-2020-1674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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19
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Asim M, Khan A, Helal A, Alshitari W, Akbar UA, Khan MY. A 2D Graphitic-Polytriaminopyrimidine (g-PTAP)/Poly(ether-block-amide) Mixed Matrix Membrane for CO 2 Separation. Chem Asian J 2021; 16:1839-1848. [PMID: 34036746 DOI: 10.1002/asia.202100390] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/18/2021] [Indexed: 11/08/2022]
Abstract
Poly(ether-block-amide)/g-PTAP mixed matrix membranes (MMMs) were developed by incorporating different wt.% (1-10%) of a novel 2D g-PTAP nanofiller and its effects on membrane structure and gas permeability were studied. The novel 2D material g-PTAP was synthesized and characterized by various analytical techniques including field-emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and Raman spectroscopy. The fabricated MMMs were investigated to study the interaction and compatibility between Pebax and g-PTAP. The MMMs showed an effective integration of g-PTAP nanofiller into the Pebax matrix without affecting its thermal stability. Gas permeation experiments with MMMs showed improved CO2 permeability and selectivity (CO2 /N2 ) upon incorporation of g-PTAP in the Pebax polymer matrix. The maximum CO2 permeability enhancement from 82.3 to 154.6 Barrer with highest CO2 /N2 selectivity from 49.5 to 83.5 were found with 2.5 wt.% of nanofiller compared to neat Pebax membranes.
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Affiliation(s)
- Mohd Asim
- Department of Chemistry, Faculty of Science, University of Jeddah, Jeddah, 21589, Saudi Arabia
| | - Abuzar Khan
- Center of Research Excellence in Nanotechnology, King Fahd University of Petroleum & Minerals (KFUPM), Dhahran, 31261, Saudi Arabia
| | - Aasif Helal
- Center of Research Excellence in Nanotechnology, King Fahd University of Petroleum & Minerals (KFUPM), Dhahran, 31261, Saudi Arabia
| | - Wael Alshitari
- Department of Chemistry, Faculty of Science, University of Jeddah, Jeddah, 21589, Saudi Arabia
| | - Usman A Akbar
- Department of Mechanical Engineering, King Fahd University of Petroleum & Minerals (KFUPM), Dhahran, 31261, Saudi Arabia
| | - Mohd Yusuf Khan
- Center of Research Excellence in Nanotechnology, King Fahd University of Petroleum & Minerals (KFUPM), Dhahran, 31261, Saudi Arabia
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20
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Zhang JW, Pan L, Zhang X, Shi C, Zou JJ. Donor-acceptor carbon nitride with electron-withdrawing chlorine group to promote exciton dissociation. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63733-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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21
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Yang B, Bu H, Liu X. Tunable electron property induced by B-doping in g-C 3N 4. RSC Adv 2021; 11:15695-15700. [PMID: 35481170 PMCID: PMC9029537 DOI: 10.1039/d1ra00149c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 04/18/2021] [Indexed: 12/01/2022] Open
Abstract
Graphitic carbon nitrides are a research hotspot of two-dimensional (2D) materials, which attract more and more attention from researchers. Topological properties are a focus in graphitic carbon nitrides materials. Using first-principles calculations, we modified the g-C3N4 (formed by tri-s-triazine) by B atoms, proposing a novel two-dimensional monolayer, g-C6N7B, which showed excellent stability verified by positive phono modes, molecular dynamic simulations and mechanical criteria. The valence band and conduction band touch at the Γ point. Interestingly, g-C6N7B is topologically nontrivial, because the valance and conduction band can be gapped by the spin–orbit coupling (SOC) effect associated with robust gapless edge states. Additionally, molecular dynamic simulations indicate that g-C6N7B will still maintain good geometry structure when the temperature is as high as 1500 K. The flexibility of g-C6N7B is confirmed by its elastic constants and Young's moduli. This work opens an avenue for graphitic carbon nitride materials with topological properties. A novel graphitic carbon nitride material: g-C6N7B, with topological properties.![]()
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Affiliation(s)
- Bo Yang
- School of Science, Shandong Jianzhu University Jinan 250101 China
| | - Hongxia Bu
- College of Physics and Electronic Engineering, Qilu Normal University Jinan 250200 China
| | - Xiaobiao Liu
- School of Science, Henan Agricultural University Zhengzhou 450002 China
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22
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Humayun M, Ullah H, Tahir AA, Bin Mohd Yusoff AR, Mat Teridi MA, Nazeeruddin MK, Luo W. An Overview of the Recent Progress in Polymeric Carbon Nitride Based Photocatalysis. CHEM REC 2021; 21:1811-1844. [PMID: 33887089 DOI: 10.1002/tcr.202100067] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 04/09/2021] [Accepted: 04/12/2021] [Indexed: 01/07/2023]
Abstract
Recently, polymeric carbon nitride (g-C3 N4 ) as a proficient photo-catalyst has been effectively employed in photocatalysis for energy conversion, storage, and pollutants degradation due to its low cost, robustness, and environmentally friendly nature. The critical review summarized the recent development, fundamentals, nanostructures design, advantages, and challenges of g-C3 N4 (CN), as potential future photoactive material. The review also discusses the latest information on the improvement of CN-based heterojunctions including Type-II, Z-scheme, metal/CN Schottky junctions, noble metal@CN, graphene@CN, carbon nanotubes (CNTs)@CN, metal-organic frameworks (MOFs)/CN, layered double hydroxides (LDH)/CN heterojunctions and CN-based heterostructures for H2 production from H2 O, CO2 conversion and pollutants degradation in detail. The optical absorption, electronic behavior, charge separation and transfer, and bandgap alignment of CN-based heterojunctions are discussed elaborately. The correlations between CN-based heterostructures and photocatalytic activities are described excessively. Besides, the prospects of CN-based heterostructures for energy production, storage, and pollutants degradation are discussed.
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Affiliation(s)
- Muhammad Humayun
- Engineering Research Center for Functional Ceramics of the Ministry of Education, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, PR, China.,Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, PR, China
| | - Habib Ullah
- Environment and Sustainability Institute, University of Exeter, Penryn, TR10 9FE, Cornwall, United Kingdom
| | - Asif Ali Tahir
- Environment and Sustainability Institute, University of Exeter, Penryn, TR10 9FE, Cornwall, United Kingdom
| | - Abd Rashid Bin Mohd Yusoff
- Department of Physics, Swansea University, Vivian Tower, Singleton Park, SA2 8PP, Swansea, United Kingdom
| | - Mohd Asri Mat Teridi
- Solar Energy Research Institute (SERI), Universiti Kebangsaan Malaysia, 43600, UKM Bangi, Selangor, Malaysia
| | - Mohammad Khaja Nazeeruddin
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, CH-1951, Sion, Switzerland
| | - Wei Luo
- Engineering Research Center for Functional Ceramics of the Ministry of Education, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, PR, China.,Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, PR, China
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23
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Melissen STAG, Le Bahers T, Sautet P, Steinmann SN. What does graphitic carbon nitride really look like? Phys Chem Chem Phys 2021; 23:2853-2859. [PMID: 33470995 DOI: 10.1039/d0cp06063a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Graphitic carbon nitrides (g-CNs) have become popular light absorbers in photocatalytic water splitting cells. Early theoretical work on these structures focused on fully polymerized g-C3N4. Experimentally, it is known that the typically employed melamine polycondensation does not go toward completion, yielding structures with ∼15 at% hydrogen. Here, we study the conformational stability of "melon", with the [C6N9H3]n structural formula using DFT. Referencing to a 2D melon sheet, B3LYP-dDsC and PBE-MBD computations revealed the same qualitative trend in stability of the 3D structures, with several of them within 5 kJ mol-1 per tecton. Fina's orthorhombic melon is the most stable of the studied conformers, with Lotsch' monoclinic melon taking an intermediate value. Invoking a simple Wannier-Mott-type approach, Fina's and Lotsch' structures exhibited the lowest optical gaps (2.8 eV), within the error margin of the experimental value (2.7 eV). All conformers yielded gaps below that of the monolayer's (3.2 eV), suggesting Jelley-type ("J") aggregation effects.
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Affiliation(s)
- Sigismund T A G Melissen
- Université de Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622 Lyon, France
| | - Tangui Le Bahers
- Université de Lyon, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, CNRS, 46 allée d'Italie, F-69007 Lyon Cedex, France.
| | - Philippe Sautet
- Department of Chemical and Biomolecular engineering, University of California, Los Angeles, Los Angeles, CA 90095, USA and Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Stephan N Steinmann
- Université de Lyon, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, CNRS, 46 allée d'Italie, F-69007 Lyon Cedex, France.
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24
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Cao X, Shen J, Li XF, Luo Y. Spin Polarization-Induced Facile Dioxygen Activation in Boron-Doped Graphitic Carbon Nitride. ACS APPLIED MATERIALS & INTERFACES 2020; 12:52741-52748. [PMID: 33174426 DOI: 10.1021/acsami.0c16216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Dioxygen (O2) activation is a vital step in many oxidation reactions, and a graphitic carbon nitride (g-C3N4) sheet is known as a famous semiconductor catalytic material. Here, we report that the atomic boron (B)-doped g-C3N4 (B/g-C3N4) can be used as a highly efficient catalyst for O2 activation. Our first-principles results show that O2 can be easily chemisorbed at the B site and thus can be highly activated, featured by an elongated O-O bond (∼1.52 Å). Interestingly, the O-O cleavage is almost barrier free at room temperatures, independent of the doping concentration. It is revealed that the B atom can induce considerable spin polarization on B/g-C3N4, which accounts for O2 activation. The doping concentration determines the coupling configuration of net-spin and thus the magnitude of the magnetism. However, the distribution of net-spin at the active site is independent of the doping concentration, giving rise to the doping concentration-independent catalytic capacity. The unique monolayer geometry and the existing multiple active sites may facilitate the adsorption and activation of O2 from two sides, and the newly generated surface oxygen-containing groups can catalyze the oxidation coupling of methane to ethane. The present findings pave a new way to design g-C3N4-based metal-free catalysts for oxidation reactions.
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Affiliation(s)
- Xinrui Cao
- Institute of Theoretical Physics, Department of Physics, Xiamen University, Xiamen 361005, China
- Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Xiamen University, Xiamen 361005, China
| | - Jiacai Shen
- Institute of Theoretical Physics, Department of Physics, Xiamen University, Xiamen 361005, China
| | - Xiao-Fei Li
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, China
| | - Yi Luo
- Department of Theoretical Chemistry and Biology, School of Biotechnology, Royal Institute of Technology, Stockholm S-106 91, Sweden
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25
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Alwin E, Nowicki W, Wojcieszak R, Zieliński M, Pietrowski M. Elucidating the structure of the graphitic carbon nitride nanomaterials via X-ray photoelectron spectroscopy and X-ray powder diffraction techniques. Dalton Trans 2020; 49:12805-12813. [PMID: 32959849 DOI: 10.1039/d0dt02325f] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
By using the most popular method of thermal condensation of dicyandiamide in a semi-closed system, graphitic carbon nitrides (gCNs) were synthesized at 500, 550, and 600 °C. The resulting materials were comprehensively analyzed via X-ray photoelectron spectroscopy (XPS) and X-ray powder diffraction (XRD)techniques. We show that the use of routine analytical methods provides an insight into the structure of the carbon nitride materials. The analysis of geometric linear structures and fully condensed structure of polymeric carbon nitrides was performed and the ranges within which the contents of different nitrogen species (pyridine, amine, imine and quaternary nitrogen) can change were determined. This analysis, in combination with quantitative XPS studies, permits to state that the carbon nitride structure prepared by the thermal condensation of dicyandiamide is closer to the structure in which poly(aminoimino)heptazine subunits are linked into chains rather than the structure involving fully-condensed polyheptazine network. The XRD analysis proved that the 3D crystal structure of carbon nitride is described more correctly by the orthorhombic cell and space group P21212 applied to condensed chains of poly(aminoimino)heptazine (melon) and not by the hexagonal cell with the space group P6m2.
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Affiliation(s)
- Emilia Alwin
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland. and Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Waldemar Nowicki
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.
| | - Robert Wojcieszak
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Michał Zieliński
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.
| | - Mariusz Pietrowski
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.
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26
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Bafekry A, Nguyen CV, Goudarzi A, Ghergherehchi M, Shafieirad M. Investigation of strain and doping on the electronic properties of single layers of C 6N 6 and C 6N 8: a first principles study. RSC Adv 2020; 10:27743-27751. [PMID: 35516966 PMCID: PMC9055606 DOI: 10.1039/d0ra04463f] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 07/09/2020] [Indexed: 12/02/2022] Open
Abstract
In this work, by performing first-principles calculations, we explore the effects of various atom impurities on the electronic and magnetic properties of single layers of C6N6 and C6N8. Our results indicate that atom doping may significantly modify the electronic properties. Surprisingly, doping Cr into a holey site of C6N6 monolayer was found to exhibit a narrow band gap of 125 meV upon compression strain, considering the spin-orbit coupling effect. Also, a C atom doped in C6N8 monolayer shows semi-metal nature under compression strains larger than -2%. Our results propose that Mg or Ca doped into strained C6N6 may exhibit small band gaps in the range of 10-30 meV. In addition, a magnetic-to-nonmagnetic phase transition can occur under large tensile strains in the Ca doped C6N8 monolayer. Our results highlight the electronic properties and magnetism of C6N6 and C6N8 monolayers. Our results show that the electronic properties can be effectively modified by atom doping and mechanical strain, thereby offering new possibilities to tailor the electronic and magnetic properties of C6N6 and C6N8 carbon nitride monolayers.
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Affiliation(s)
- Asadollah Bafekry
- Department of Physics, University of Guilan 41335-1914 Rasht Iran
- Department of Physics, University of Antwerp Groenenborgerlaan 171 B-2020 Antwerp Belgium
| | - Chuong V Nguyen
- Institute of Research and Development, Duy Tan University Da Nang 550000 Vietnam
| | - Abbas Goudarzi
- Department of Physics, University of North Texas Denton Texas USA
| | - Mitra Ghergherehchi
- College of Electronic and Electrical Engineering, Sungkyunkwan University Suwon Korea
| | - Mohsen Shafieirad
- Department of Electrical and Computer Engineering, University of Kashan Kashan Iran
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27
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Li W, Guo Z, Jiang L, Zhong L, Li G, Zhang J, Fan K, Gonzalez-Cortes S, Jin K, Xu C, Xiao T, Edwards PP. Facile in situ reductive synthesis of both nitrogen deficient and protonated g-C 3N 4 nanosheets for the synergistic enhancement of visible-light H 2 evolution. Chem Sci 2020; 11:2716-2728. [PMID: 34084330 PMCID: PMC8157536 DOI: 10.1039/c9sc05060d] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 01/31/2020] [Indexed: 11/25/2022] Open
Abstract
A new strategy is reported here to synthesize both nitrogen deficient and protonated graphitic carbon nitride (g-C3N4) nanosheets by the conjoint use of NH4Cl as a dynamic gas template together with hypophosphorous acid (H3PO2) as a doping agent. The NH4Cl treatment allows for the scalable production of protonated g-C3N4 nanosheets. With the corresponding co-addition of H3PO2, nitrogen vacancies, accompanied by both additional protons and interstitially-doped phosphorus, are introduced into the g-C3N4 framework, and the electronic bandgap of g-C3N4 nanosheets as well as their optical properties and hydrogen-production performance can be precisely tuned by careful adjustment of the H3PO2 treatment. This conjoint approach thereby results in improved visible-light absorption, enhanced charge-carrier separation and a high H2 evolution rate of 881.7 μmol h-1 achieved over the H3PO2 doped g-C3N4 nanosheets with a corresponding apparent quantum yield (AQY) of 40.4% (at 420 nm). We illustrate that the synergistic H3PO2 doping modifies the layered g-C3N4 materials by introducing nitrogen vacancies as well as protonating them, leading to significant photocatalytic H2 evolution enhancements, while the g-C3N4 materials doped with phosphoric acid (H3PO4) are simply protonated further, revealing the varied doping effects of phosphorus having different (but accessible) valence states.
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Affiliation(s)
- Weisong Li
- School of Chemical Engineering & Technology, State Key Laboratory of Chemical Engineering, Tianjin University Tianjin 300350 China
- Inorganic Chemistry Laboratory, University of Oxford South Parks Road Oxford OX1 3QR UK
| | - Zheng Guo
- School of Chemical Engineering & Technology, State Key Laboratory of Chemical Engineering, Tianjin University Tianjin 300350 China
| | - Litong Jiang
- Inorganic Chemistry Laboratory, University of Oxford South Parks Road Oxford OX1 3QR UK
- Institute of Physics, Chinese Academy of Sciences Beijing 100190 China
| | - Lei Zhong
- School of Chemical Engineering & Technology, State Key Laboratory of Chemical Engineering, Tianjin University Tianjin 300350 China
| | - Guoning Li
- School of Chemical Engineering & Technology, State Key Laboratory of Chemical Engineering, Tianjin University Tianjin 300350 China
| | - Jiajun Zhang
- School of Chemical Engineering & Technology, State Key Laboratory of Chemical Engineering, Tianjin University Tianjin 300350 China
| | - Kai Fan
- School of Chemical Engineering & Technology, State Key Laboratory of Chemical Engineering, Tianjin University Tianjin 300350 China
| | - Sergio Gonzalez-Cortes
- School of Chemical Engineering & Technology, State Key Laboratory of Chemical Engineering, Tianjin University Tianjin 300350 China
| | - Kuijuan Jin
- Institute of Physics, Chinese Academy of Sciences Beijing 100190 China
| | - Chunjian Xu
- School of Chemical Engineering & Technology, State Key Laboratory of Chemical Engineering, Tianjin University Tianjin 300350 China
| | - Tiancun Xiao
- Inorganic Chemistry Laboratory, University of Oxford South Parks Road Oxford OX1 3QR UK
| | - Peter P Edwards
- Inorganic Chemistry Laboratory, University of Oxford South Parks Road Oxford OX1 3QR UK
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28
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Bafekry A, Stampfl C, Akgenc B, Mortazavi B, Ghergherehchi M, Nguyen CV. Embedding of atoms into the nanopore sites of the C6N6 and C6N8 porous carbon nitride monolayers with tunable electronic properties. Phys Chem Chem Phys 2020; 22:6418-6433. [DOI: 10.1039/d0cp00093k] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Using first-principles calculations, we study the effect of embedding various atoms into the nanopore sites of both C6N6 and C6N8 monolayers.
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Affiliation(s)
- Asadollah Bafekry
- Department of Physics
- University of Guilan
- Rasht
- Iran
- Department of Physics
| | | | - Berna Akgenc
- Department of Physics
- Kirklareli University
- Kirklareli
- Turkey
| | - Bohayra Mortazavi
- Institute of Continuum Mechanics
- Leibniz Universität Hannover
- 30157 Hannover
- Germany
- Cluster of Excellence PhoenixD (Photonics, Optics, and Engineering-Innovation Across Disciplines)
| | - Mitra Ghergherehchi
- College of Electronic and Electrical Engineering
- Sungkyun Kwan University
- Suwon
- Korea
| | - Ch. V. Nguyen
- Department of Materials Science and Engineering
- Le Quy Don Technical University
- Hanoi
- Vietnam
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29
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Visible-light-mediated high-efficiency catalytic oxidation of sulfides using wrinkled C3N4 nanosheets. J Catal 2020. [DOI: 10.1016/j.jcat.2019.11.041] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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30
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Nimbalkar DB, Stas M, Hou SS, Ke SC, Wu JJ. Microscopic Revelation of Charge-Trapping Sites in Polymeric Carbon Nitrides for Enhanced Photocatalytic Activity by Correlating with Chemical and Electronic Structures. ACS APPLIED MATERIALS & INTERFACES 2019; 11:19087-19095. [PMID: 31062573 DOI: 10.1021/acsami.9b02494] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The influences of chemical and electronic structures on the photophysical properties of polymeric carbon nitrides (PCNs) photocatalysts, which govern the microscopic mechanisms of the superior photocatalytic activity under visible-light irradiation, have been resolved in this work. Time-resolved photoluminescence and in situ electron paramagnetic resonance measurements indicate that the photoexcited electrons in the fractured PCNs swiftly transfer to the C2p-localized states where the trapped photoelectrons exhibit longer lifetime compared to those in the ordinary PCNs. Moreover, the structure deviation at the carbon (Cb) atoms around the bridging sites of heptazine ring units, where trapped photoelectrons are localized, has been determined in the fractured PCNs based on the 13C solid-state nuclear magnetic resonance spectra and the density functional theory calculations. Accordingly, the formation of fractured PCNs by breaking the in-plane hydrogen bonds at a high temperature is a promising strategy for the enhancement of photocatalytic activity.
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Affiliation(s)
- Dipak B Nimbalkar
- Department of Chemical Engineering , National Cheng Kung University , Tainan 70101 , Taiwan
- Department of Physics , National Dong Hwa University , Hualien 97401 , Taiwan
| | - Monika Stas
- Department of Physical Chemistry and Molecular Modeling , Opole University , Opole 45052 , Poland
| | - Sheng-Shu Hou
- Department of Chemical Engineering , National Cheng Kung University , Tainan 70101 , Taiwan
| | - Shyue-Chu Ke
- Department of Physics , National Dong Hwa University , Hualien 97401 , Taiwan
| | - Jih-Jen Wu
- Department of Chemical Engineering , National Cheng Kung University , Tainan 70101 , Taiwan
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Kumar P, Vahidzadeh E, Thakur UK, Kar P, Alam KM, Goswami A, Mahdi N, Cui K, Bernard GM, Michaelis VK, Shankar K. C3N5: A Low Bandgap Semiconductor Containing an Azo-Linked Carbon Nitride Framework for Photocatalytic, Photovoltaic and Adsorbent Applications. J Am Chem Soc 2019; 141:5415-5436. [DOI: 10.1021/jacs.9b00144] [Citation(s) in RCA: 253] [Impact Index Per Article: 50.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Pawan Kumar
- Department of Electrical and Computer Engineering, University of Alberta, 9211 116 Street, Edmonton, Alberta T6G 1H9, Canada
| | - Ehsan Vahidzadeh
- Department of Electrical and Computer Engineering, University of Alberta, 9211 116 Street, Edmonton, Alberta T6G 1H9, Canada
| | - Ujwal K. Thakur
- Department of Electrical and Computer Engineering, University of Alberta, 9211 116 Street, Edmonton, Alberta T6G 1H9, Canada
| | - Piyush Kar
- Department of Electrical and Computer Engineering, University of Alberta, 9211 116 Street, Edmonton, Alberta T6G 1H9, Canada
| | - Kazi M. Alam
- Department of Electrical and Computer Engineering, University of Alberta, 9211 116 Street, Edmonton, Alberta T6G 1H9, Canada
| | - Ankur Goswami
- Department of Electrical and Computer Engineering, University of Alberta, 9211 116 Street, Edmonton, Alberta T6G 1H9, Canada
| | - Najia Mahdi
- Department of Electrical and Computer Engineering, University of Alberta, 9211 116 Street, Edmonton, Alberta T6G 1H9, Canada
| | - Kai Cui
- Nanotechnology
Research Centre, National Research Council of Canada, Edmonton, Alberta T6G 2M9, Canada
| | - Guy M. Bernard
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | | | - Karthik Shankar
- Department of Electrical and Computer Engineering, University of Alberta, 9211 116 Street, Edmonton, Alberta T6G 1H9, Canada
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Facile Synthesis of Visible Light-Induced g-C₃N₄/Rectorite Composite for Efficient Photodegradation of Ciprofloxacin. MATERIALS 2018; 11:ma11122452. [PMID: 30513995 PMCID: PMC6317028 DOI: 10.3390/ma11122452] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Revised: 11/28/2018] [Accepted: 11/30/2018] [Indexed: 11/17/2022]
Abstract
A novel kind of g-C3N4/rectorite composite with high visible-light photoactivity was developed via a mild and cost effective two-step process. Ciprofloxacin (CIP), a typical antibiotic, was applied to evaluate the photoactivity of the received catalysts. Furthermore, the by-products of CIP photodegradation were analyzed and the possible degradation pathways were also discussed. Compared with bare photocatalysts, the received composite possessed well reusability and higher photoactivity towards CIP. According to the characterization analysis results, layered g-C3N4 was successfully immobilized on layered rectorite, which could not only promote its adsorption capacity but also provide more reactive sites for CIP adsorption and photodegradation. Compared with bare g-C3N4, the photoactivity of the prepared composite was significantly enhanced. The enhancement should be mainly due to the lower recombination rate of photogenerated carriers and the improved adsorption capacity toward CIP. This study demonstrated that the obtained g-C3N4/rectorite composite should be a promising alternative material in wastewater treatment.
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33
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Pham TT, Shin EW. Influence of g-C 3N 4 Precursors in g-C 3N 4/NiTiO 3 Composites on Photocatalytic Behavior and the Interconnection between g-C 3N 4 and NiTiO 3. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:13144-13154. [PMID: 30336055 DOI: 10.1021/acs.langmuir.8b02596] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this study, composite photocatalysts were produced from NiTiO3 and N2-rich precursors (dicyandiamide, melamine, urea, and thiourea) under N2 flow conditions. The goal of the study was to investigate the interaction between NiTiO3 and the synthesized g-C3N4. The properties of the g-C3N4/NiTiO3 (CNT) composites were different depending on the starting materials. Dicyandiamide and thiourea created strong connections with NiTiO3 and resulted in the generation of Ti-N and Ti-O-S bonds. Urea and melamine, however, had difficulty forming g-C3N4 structures or interconnections with NiTiO3. The Ti-N and Ti-O-S bridges in the composite photocatalysts led to increased photocatalytic activity as well as inhibition of the recombination rate. Additionally, the band diagrams of g-C3N4 prepared from dicyandiamide and thiourea exhibited positions suitable for the Z-scheme charge-transfer model with NiTiO3, implying that the composite photocatalysts were applicable for photocatalytic degradation of organic contaminants under the visible-light irradiation. Higher reaction rate constants for the composites prepared with dicyandiamide and thiourea confirmed the significant role of the Ti-N/Ti-O-S bridge between g-C3N4 and NiTiO3.
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Affiliation(s)
- Thanh-Truc Pham
- School of Chemical Engineering , University of Ulsan , Daehakro 93 , Nam-gu, Ulsan 44610 , South Korea
| | - Eun Woo Shin
- School of Chemical Engineering , University of Ulsan , Daehakro 93 , Nam-gu, Ulsan 44610 , South Korea
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34
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Marcì G, García-López E, Palmisano L. Polymeric carbon nitride (C3N4) as heterogeneous photocatalyst for selective oxidation of alcohols to aldehydes. Catal Today 2018. [DOI: 10.1016/j.cattod.2018.03.038] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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35
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Mondelli C, Puértolas B, Ackermann M, Chen Z, Pérez-Ramírez J. Enhanced Base-Free Formic Acid Production from CO 2 on Pd/g-C 3 N 4 by Tuning of the Carrier Defects. CHEMSUSCHEM 2018; 11:2859-2869. [PMID: 29998552 DOI: 10.1002/cssc.201801362] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 07/11/2018] [Indexed: 06/08/2023]
Abstract
CO2 hydrogenation is attracting increasing attention as a sustainable route to produce formic acid, a commodity and potential energy vector. Here, bifunctional catalysts comprising metal nanoparticles deposited on bulk graphitic carbon nitride were assessed under base-free conditions, identifying supported Pd as the best performer. The catalyst productivity was enhanced by maximizing the edge-defects of the g-C3 N4 carrier, amino groups able to activate CO2 , and by generating welldispersed 5 nm Pd particles, required to split H2 . Bottom-up synthesis methods, that is, hard-templating and carbon enrichment upon polymerization, and top-down strategies, that is, thermal exfoliation of the as-prepared solid, were explored to boost the defects, the nature and density of which were evaluated by thermal and (in situ) spectroscopic techniques. After optimization of temperature, pressure, and reaction time, a 20 times higher turnover frequency compared with the best Pd/g-C3 N4 catalyst reported producing formic acid from CO2 without base was attained. This activity level was retained upon recycling with intermediate catalyst regeneration at mild temperature.
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Affiliation(s)
- Cecilia Mondelli
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Begoña Puértolas
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Miriam Ackermann
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Zupeng Chen
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Javier Pérez-Ramírez
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
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36
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Da Silva ES, Moura NMM, Coutinho A, Dražić G, Teixeira BMS, Sobolev NA, Silva CG, Neves MGPMS, Prieto M, Faria JL. β-Cyclodextrin as a Precursor to Holey C-Doped g-C 3 N 4 Nanosheets for Photocatalytic Hydrogen Generation. CHEMSUSCHEM 2018; 11:2681-2694. [PMID: 29975819 DOI: 10.1002/cssc.201801003] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 06/19/2018] [Indexed: 05/15/2023]
Abstract
A green, template-free and easy-to-implement strategy was developed to access holey g-C3 N4 (GCN) nanosheets doped with carbon. The protocol involves heating dicyandiamide with β-cyclodextrin (βCD) prior to polymerization. The local symmetry of the GCN skeleton is broken, yielding CxGCN (x corresponds to the initial amount of βCD used) with pores and a distorted structure. The electronic, emission, optical and textural properties of the best-performing material, C2GCN, were significantly modified as compared to bulk GCN. The spectroscopic and luminescent features of C2GCN show the characteristic π-π* electronic transition of GCN, accompanied by much stronger n-π* electronic transitions owing to the porous and distorted network. These new electronic transitions, along with the presence of additional carbon synergistically contributed to enhanced visible light absorption and restrained recombination of electron-hole pairs. Steady-state and time-resolved photoluminescence showed an effective quench of the fluorescence emission, accompanied by a decrease of fluorescence lifetime of C2GCN (2.20 ns) in comparison with GCN (5.85 ns), owing to the delocalization of electron and holes to new recombination centers. The photocatalytic activity of C2GCN was attributed to efficient charge carrier separation and improved visible-light absorbing ability. As result, C2GCN exhibited ∼5 times higher photocatalytic H2 generation under visible light than bulk GCN.
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Affiliation(s)
- Eliana S Da Silva
- Laboratory of Separation and Reaction Engineering, Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465, Porto, Portugal
| | - Nuno M M Moura
- QOPNA, Department of Chemistry, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Ana Coutinho
- CQFM-IN and IBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisboa, Portugal
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal
| | - Goran Dražić
- Department of Materials Chemistry, National Institute of Chemistry, 1000, Ljubljana, Slovenia
| | - Bruno M S Teixeira
- Physics Department and i3N, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Nikolai A Sobolev
- Physics Department and i3N, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Cláudia G Silva
- Laboratory of Separation and Reaction Engineering, Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465, Porto, Portugal
| | - M Graça P M S Neves
- QOPNA, Department of Chemistry, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Manuel Prieto
- CQFM-IN and IBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisboa, Portugal
| | - Joaquim L Faria
- Laboratory of Separation and Reaction Engineering, Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465, Porto, Portugal
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37
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Zhang W, Barrio J, Gervais C, Kocjan A, Yu A, Wang X, Shalom M. Synthesis of Carbon-Nitrogen-Phosphorous Materials with an Unprecedented High Amount of Phosphorous toward an Efficient Fire-Retardant Material. Angew Chem Int Ed Engl 2018; 57:9764-9769. [DOI: 10.1002/anie.201805279] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Revised: 05/25/2018] [Indexed: 12/27/2022]
Affiliation(s)
- Wenyao Zhang
- Department of Chemistry and Ilse Katz Institute for Nanoscale Science and Technology; Ben-Gurion University of the Negev; Beer-Sheva 8410501 Israel
- Key Laboratory of Soft Chemistry and Functional Materials; Nanjing University of Science and Technology; Nanjing 210094 China
- Colloid Chemistry Department Department; Max Planck Institute for Colloids and Interfaces; Potsdam 14424 Germany
- Waterloo Institute for Nanotechnology; University of Waterloo; Waterloo Ontario N2L3G1 Canada
| | - Jesús Barrio
- Department of Chemistry and Ilse Katz Institute for Nanoscale Science and Technology; Ben-Gurion University of the Negev; Beer-Sheva 8410501 Israel
| | - Christel Gervais
- Sorbonne Université, Collège de France; Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP); UPMC Universite Paris 6, UMR CNRS 7574; 4 place Jussieu 75252 Paris cedex 05 France
| | - Andraž Kocjan
- Department for Nanostructured Materials; Jožef Stefan Institute; Ljubljana Slovenia
| | - Aiping Yu
- Waterloo Institute for Nanotechnology; University of Waterloo; Waterloo Ontario N2L3G1 Canada
| | - Xin Wang
- Key Laboratory of Soft Chemistry and Functional Materials; Nanjing University of Science and Technology; Nanjing 210094 China
| | - Menny Shalom
- Department of Chemistry and Ilse Katz Institute for Nanoscale Science and Technology; Ben-Gurion University of the Negev; Beer-Sheva 8410501 Israel
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38
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Zhang W, Barrio J, Gervais C, Kocjan A, Yu A, Wang X, Shalom M. Synthesis of Carbon-Nitrogen-Phosphorous Materials with an Unprecedented High Amount of Phosphorous toward an Efficient Fire-Retardant Material. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Wenyao Zhang
- Department of Chemistry and Ilse Katz Institute for Nanoscale Science and Technology; Ben-Gurion University of the Negev; Beer-Sheva 8410501 Israel
- Key Laboratory of Soft Chemistry and Functional Materials; Nanjing University of Science and Technology; Nanjing 210094 China
- Colloid Chemistry Department Department; Max Planck Institute for Colloids and Interfaces; Potsdam 14424 Germany
- Waterloo Institute for Nanotechnology; University of Waterloo; Waterloo Ontario N2L3G1 Canada
| | - Jesús Barrio
- Department of Chemistry and Ilse Katz Institute for Nanoscale Science and Technology; Ben-Gurion University of the Negev; Beer-Sheva 8410501 Israel
| | - Christel Gervais
- Sorbonne Université, Collège de France; Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP); UPMC Universite Paris 6, UMR CNRS 7574; 4 place Jussieu 75252 Paris cedex 05 France
| | - Andraž Kocjan
- Department for Nanostructured Materials; Jožef Stefan Institute; Ljubljana Slovenia
| | - Aiping Yu
- Waterloo Institute for Nanotechnology; University of Waterloo; Waterloo Ontario N2L3G1 Canada
| | - Xin Wang
- Key Laboratory of Soft Chemistry and Functional Materials; Nanjing University of Science and Technology; Nanjing 210094 China
| | - Menny Shalom
- Department of Chemistry and Ilse Katz Institute for Nanoscale Science and Technology; Ben-Gurion University of the Negev; Beer-Sheva 8410501 Israel
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39
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Xu CQ, Zhang WD. Facile synthesis of nitrogen deficient g-C 3 N 4 by copolymerization of urea and formamide for efficient photocatalytic hydrogen evolution. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2018.04.029] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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40
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Photochemical Construction of Carbonitride Structures for Red‐Light Redox Catalysis. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804996] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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41
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Photochemical Construction of Carbonitride Structures for Red‐Light Redox Catalysis. Angew Chem Int Ed Engl 2018; 57:8674-8677. [DOI: 10.1002/anie.201804996] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Indexed: 11/07/2022]
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42
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Gope S, Malunavar S, Bhattacharyya AJ. Li–Ion‐Conducting Pillar‐Like Graphitic Carbon Nitrides as Novel Anodes for Li–Ion Batteries. ChemistrySelect 2018. [DOI: 10.1002/slct.201800052] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Subhra Gope
- Solid State and Structural Chemistry UnitIndian Institute of Science Bangalore-560012
| | - Sneha Malunavar
- Solid State and Structural Chemistry UnitIndian Institute of Science Bangalore-560012
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43
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Controllable construction of polymer/inorganic interface for poly(vinyl alcohol)/graphitic carbon nitride hybrid pervaporation membranes. Chem Eng Sci 2018. [DOI: 10.1016/j.ces.2018.02.009] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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44
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Wang J, Li M, Zhou S, Xue A, Zhang Y, Zhao Y, Zhong J, Zhang Q. Graphitic carbon nitride nanosheets embedded in poly(vinyl alcohol) nanocomposite membranes for ethanol dehydration via pervaporation. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2017.07.008] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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45
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Akhmedov VM, Melnikova NE, Akhmedov ID. Synthesis, properties, and application of polymeric carbon nitrides. Russ Chem Bull 2017. [DOI: 10.1007/s11172-017-1810-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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46
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Li G, Li L, Yuan H, Wang H, Zeng H, Shi J. Alkali-assisted mild aqueous exfoliation for single-layered and structure-preserved graphitic carbon nitride nanosheets. J Colloid Interface Sci 2017; 495:19-26. [DOI: 10.1016/j.jcis.2017.01.112] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2017] [Revised: 01/26/2017] [Accepted: 01/29/2017] [Indexed: 10/20/2022]
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47
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Fan C, Miao J, Xu G, Liu J, Lv J, Wu Y. Graphitic carbon nitride nanosheets obtained by liquid stripping as efficient photocatalysts under visible light. RSC Adv 2017. [DOI: 10.1039/c7ra05732f] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Well-scattered g-C3N4 nanosheets obtained using a liquid stripping possess much higher photocatalytic performance than bulk g-C3N4.
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Affiliation(s)
- Chengkong Fan
- School of Materials Science and Engineering
- Hefei University of Technology
- Hefei 230009
- China
| | - Jilin Miao
- Industry & Equipment Technology
- Institute of Hefei University of Technology
- Hefei 230009
- China
| | - Guangqing Xu
- School of Materials Science and Engineering
- Hefei University of Technology
- Hefei 230009
- China
- Key Laboratory of Advanced Functional Materials and Devices of Anhui Province
| | - Jiaqin Liu
- Industry & Equipment Technology
- Institute of Hefei University of Technology
- Hefei 230009
- China
- Key Laboratory of Advanced Functional Materials and Devices of Anhui Province
| | - Jun Lv
- School of Materials Science and Engineering
- Hefei University of Technology
- Hefei 230009
- China
- Key Laboratory of Advanced Functional Materials and Devices of Anhui Province
| | - Yucheng Wu
- School of Materials Science and Engineering
- Hefei University of Technology
- Hefei 230009
- China
- Industry & Equipment Technology
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48
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Miller TS, Jorge AB, Suter TM, Sella A, Corà F, McMillan PF. Carbon nitrides: synthesis and characterization of a new class of functional materials. Phys Chem Chem Phys 2017; 19:15613-15638. [DOI: 10.1039/c7cp02711g] [Citation(s) in RCA: 247] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We examine the characterization of carbon nitrides and provide a perspective on their functional properties as next-generation materials.
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Affiliation(s)
- T. S. Miller
- Department of Chemistry
- Christopher Ingold Building
- University College London
- London
- UK
| | - A. Belen Jorge
- Materials Research Institute
- School of Engineering and Materials Science
- Queen Mary University of London
- London
- UK
| | - T. M. Suter
- Department of Chemistry
- Christopher Ingold Building
- University College London
- London
- UK
| | - A. Sella
- Department of Chemistry
- Christopher Ingold Building
- University College London
- London
- UK
| | - F. Corà
- Department of Chemistry
- Christopher Ingold Building
- University College London
- London
- UK
| | - P. F. McMillan
- Department of Chemistry
- Christopher Ingold Building
- University College London
- London
- UK
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49
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Mesch MB, Bärwinkel K, Krysiak Y, Martineau C, Taulelle F, Neder RB, Kolb U, Senker J. Solving the Hydrogen and Lithium Substructure of Poly(triazine imide)/LiCl Using NMR Crystallography. Chemistry 2016; 22:16878-16890. [DOI: 10.1002/chem.201603726] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Maria B. Mesch
- Inorganic Chemistry III; University of Bayreuth; 95447 Bayreuth Germany
| | - Kilian Bärwinkel
- Inorganic Chemistry III; University of Bayreuth; 95447 Bayreuth Germany
| | - Yaşar Krysiak
- Institute of Inorganic Chemistry and Analytical Chemistry; Johannes Gutenberg University Mainz; Jakob-Welder-Weg 11 55128 Mainz Germany
| | - Charlotte Martineau
- Tectospin; Institut Lavoisier de Versailles (ILV), UMR CNRS 8180; Université de Versailles Saint-Quentin-en-Yvelines; 45 Avenue des Etats-Unis 78035 Versailles cedex France
| | - Francis Taulelle
- Tectospin; Institut Lavoisier de Versailles (ILV), UMR CNRS 8180; Université de Versailles Saint-Quentin-en-Yvelines; 45 Avenue des Etats-Unis 78035 Versailles cedex France
| | - Reinhard B. Neder
- Lehrstuhl für Kristallographie und Strukturphysik; Friedrich-Alexander-Universität Erlangen-Nürnberg; Staudtstr. 3 91058 Erlangen Germany
| | - Ute Kolb
- Institute of Inorganic Chemistry and Analytical Chemistry; Johannes Gutenberg University Mainz; Jakob-Welder-Weg 11 55128 Mainz Germany
| | - Jürgen Senker
- Inorganic Chemistry III; University of Bayreuth; 95447 Bayreuth Germany
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50
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Tian Z, Wang S, Wang Y, Ma X, Cao K, Peng D, Wu X, Wu H, Jiang Z. Enhanced gas separation performance of mixed matrix membranes from graphitic carbon nitride nanosheets and polymers of intrinsic microporosity. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2016.04.019] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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