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Jamil S, Afzal R, Khan SR, Shabbir M, Alhokbany N, Li S, Saeed Ashraf Janjua MR. Photocatalytic degradation of indigo carmine dye by hydrothermally synthesized graphene nanodots (GNDs): investigation of kinetics and thermodynamics. RSC Adv 2024; 14:23973-23986. [PMID: 39086519 PMCID: PMC11289714 DOI: 10.1039/d4ra02476a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Accepted: 07/16/2024] [Indexed: 08/02/2024] Open
Abstract
Graphene nano dots (GNDs) are an intriguing emerging class of materials at the nano scale with distinctive characteristics and exciting potential applications. Graphene oxide was synthesized in a lab setting using a modified version of Hummers' approach and used as a precursor for synthesis of graphene nano dots. Graphene oxide is then treated through hydrothermal treatment to produce GNDs with exact control over their size and form. Synthesized graphene nano dots were subjected to various instruments to study morphology, crystallinity, size and other properties. UV-visible spectroscopy was used to detect the maximum absorbance of light. For functional group identification, FTIR analysis was conducted. X-ray diffraction analysis explained structural composition and various other parameters i.e., crystal size and diameter, which was further verified by Vesta software. Surface morphology of GNDs was analyzed by scanning electron microscopy. AFM analysis of GNDs demonstrates the topography of the surface. The photo degradation of the indigo carmine dye by the GNDs also demonstrates their superiority as UV-visible light driven photo catalysts. To evaluate the results, the thermodynamics and kinetics of the degradation reactions are examined. The effects of several factors, such as temperature, initial concentration, time, pH and catalyst concentration, are also investigated. The data will be analyzed statistically by regression and correlation analysis using dependent and independent variables, regression coefficient and other statistical techniques.
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Affiliation(s)
- Saba Jamil
- Super Light Materials and Nanotechnology Laboratory, Department of Chemistry, University of Agriculture Faisalabad 38000 Pakistan
| | - Rabia Afzal
- Super Light Materials and Nanotechnology Laboratory, Department of Chemistry, University of Agriculture Faisalabad 38000 Pakistan
| | - Shanza Rauf Khan
- Super Light Materials and Nanotechnology Laboratory, Department of Chemistry, University of Agriculture Faisalabad 38000 Pakistan
| | - Mehwish Shabbir
- Super Light Materials and Nanotechnology Laboratory, Department of Chemistry, University of Agriculture Faisalabad 38000 Pakistan
| | - Norah Alhokbany
- Department of Chemistry, College of Science, King Saud University Riyadh 11451 Saudi Arabia
| | - Songnan Li
- Harbin Normal University, Songbei Campus Harbin 150026 China
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Abreu-Jaureguí C, Andronic L, Sepúlveda-Escribano A, Silvestre-Albero J. Improved photocatalytic performance of TiO 2/carbon photocatalysts: Role of carbon additive. ENVIRONMENTAL RESEARCH 2024; 251:118672. [PMID: 38508360 DOI: 10.1016/j.envres.2024.118672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 02/26/2024] [Accepted: 03/09/2024] [Indexed: 03/22/2024]
Abstract
A series of TiO2 - based photocatalysts have been prepared by the incorporation of 10 wt% of various carbon-based nanomaterials as modifying agents to titania. More specifically, commercial TiO2 P25 was modified through a wet impregnation approach with methanol with four different carbon nanostructures: single-walled carbon nanotubes (SWCNTs), partially reduced graphene oxide (prGO), graphite (GI), and graphitic carbon nitride (gCN). Characterization results (XPS and Raman) anticipate the occurrence of important interfacial phenomena, preferentially for samples TiO2/SWCNT and TiO2/prGO, with a binding energy displacement in the Ti 2p contribution of 1.35 eV and 1.54 eV, respectively. These findings could be associated with an improved electron-hole mobility at the carbon/oxide interface. Importantly, these two samples constitute the most promising photocatalysts for Rhodamine B (RhB) photodegradation, with nearly 100% conversion in less than 2 h. These promising results must be associated with intrinsic physicochemical changes at the formed heterojunction structure and the potential dual-role of the composites able to adsorb and degrade RhB simultaneously. Cyclability tests confirm the improved performance of the composites (e.g., TiO2/SWCNT, 100% degradation in 1 h) due to the combined adsorption/degradation ability, although the regeneration after several cycles is not complete due to partial blocking of the inner cavities in the carbon nanotubes by non-reacted RhB. Under these reaction conditions, Rhodamine-B xanthene dye degrades via the de-ethylation route.
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Affiliation(s)
- C Abreu-Jaureguí
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica - Instituto Universitario de Materiales, Universidad de Alicante, Spain
| | - L Andronic
- Product Design, Mechatronics and Environment Department, Transilvania University of Brasov, Romania
| | - A Sepúlveda-Escribano
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica - Instituto Universitario de Materiales, Universidad de Alicante, Spain
| | - J Silvestre-Albero
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica - Instituto Universitario de Materiales, Universidad de Alicante, Spain.
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Kumar SA, Rosaline DR, Foletto EL, Dotto GL, Inbanathan SSR, Muralidharan G. Application of green-synthesized cadmium oxide nanofibers and cadmium oxide/graphene nanosheet nanocomposites as alternative and efficient photocatalysts for methylene blue removal from aqueous matrix. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:117390-117403. [PMID: 37870670 DOI: 10.1007/s11356-023-30425-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 10/08/2023] [Indexed: 10/24/2023]
Abstract
For the first time, cadmium oxide (CdO) nanofibers (NFs) and graphene nanosheet (GNS)-doped CdO nanocomposites (NCs) have been synthesized by a simple green route using green tea (Camellia sinensis) extract, for subsequent application as photocatalysts for methylene blue (MB) removal from an aqueous matrix. In addition, the materials were tested as working electrodes for supercapacitors. The prepared samples were analyzed by FESEM, UV-Vis spectroscopy, FTIR, and X-ray diffraction (XRD). FESEM revealed that the obtained NPs and NCs show fiber-shaped nanostructure. FTIR confirmed the presence of biomolecules on CdO and carbon compounds on CdO/GNS, while XRD exhibited the cubic crystalline structure of obtained NPs and NCs. The Rietveld refinement using XRD data was performed to ascertain the crystallographic characteristics of the produced samples and look into lattice imperfections. UV-Vis spectroscopy evaluated the optical bandgap energies of CdO and CdO/GNS NCs. The CdO/GNS NCs demonstrated a fast cleavage of the dye molecule under UV irradiation, resulting in 97% removal in 120 min. In addition, CdO/GNS NCs showed remarkable chemical stability as an electrode material, with a high specific capacitance of 231 F g-1 at a scan rate of 25 mV s-1. These observed NCs characteristics are higher when compared to pristine CdO NPs. Finally, we found that the investigated NCs showed enhanced multifunctional properties, such as photocatalytic and supercapacitor characteristics, which can be useful in practical applications.
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Affiliation(s)
- Sundararajan Ashok Kumar
- Post Graduate and Research Department of Physics, The American College, Madurai, Tamil Na du, 625002, India
| | - Daniel Rani Rosaline
- Post Graduate and Research Department of Chemistry, Lady Doak College, Madurai, Tamil Na du, 625002, India
| | - Edson Luiz Foletto
- Department of Chemical Engineering, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Guilherme Luiz Dotto
- Department of Chemical Engineering, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil.
| | | | - Gopalan Muralidharan
- Department of Physics, The Gandhigram Rural Institute (Deemed to be University), Gandhigram, Dindigul, Tamil Na du, 624302, India
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4
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Perera DC, Rasaiah JC. Computational Study of H 2O Adsorption, Hydrolysis, and Water Splitting on (ZnO) 3 Nanoclusters Deposited on Graphene and Graphene Oxides. ACS OMEGA 2023; 8:32185-32203. [PMID: 37692258 PMCID: PMC10483521 DOI: 10.1021/acsomega.3c04882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 07/25/2023] [Indexed: 09/12/2023]
Abstract
Graphene and graphene oxide (GO)-based metal oxides could play an important role in using metal oxide like zinc oxide (ZnO) as photocatalysts to split water. The π conjugation structure of GO shows greater electron mobility and could enhance the photocatalytic performance of the bare ZnO catalyst by increasing the electron-hole separation. In this work, we use density functional theory (DFT) with the B3LYP exchange functional and DGDZVP2 basis set to study the impact of adsorbing (ZnO)3 nanoparticles on graphene and four different GO models (GO1, GO2, GO4, and GO5) on the hydration and hydrolysis of water that precedes water splitting to produce H2 and O2 atoms in the gas phase and compare them with our previous studies on the bare catalyst in the absence of the substrate. The potential energy curves and activation energies are similar, but the triplet states are lower in energy than the singlet states in contrast to the bare (ZnO)3 catalyst. We extend our calculations to water splitting from the hydrolyzed (ZnO)3 on GO1 (GO1-(ZnO)3). The triplet state energy remains lower than the singlet state energy, and hydrogen production precedes the formation of oxygen, but there is no energy inter-crossing during the formation of O2 that occurs in the absence of a GO1 substrate. Although the hydrolysis reaction pathway follows similar steps in both the bare and GO1-(ZnO)3, water splitting with (ZnO)3 absorbed on the GO1 substrate skips two steps as it proceeds toward the production of the second H2. The production of two hydrogen molecules precedes oxygen formation during water splitting, and the first Zn-H bond formation step is the rate-determining step. The ZnO trimer deposited on GO systems could be potentially attractive nanocatalysts for water splitting.
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Affiliation(s)
- Duwage C. Perera
- Department of Chemistry, University of Maine, Orono, Maine 04469, United States
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Sathya Priya B, Aruchamy K, Oh TH, Avula B, Hasan I, Shanthi M. Synthesis of Solar Light Active Reduced Graphene Oxide-ZnS Nanomaterial for Photocatalytic Degradation and Antibacterial Applications. MICROMACHINES 2023; 14:1324. [PMID: 37512635 PMCID: PMC10386591 DOI: 10.3390/mi14071324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 06/16/2023] [Accepted: 06/24/2023] [Indexed: 07/30/2023]
Abstract
Good water quality is essential for life; therefore, decolorizing and detoxifying organic dye wastes (textile effluents) have gained immense environmental importance in recent years. Thus, the degradation of wastewater has become a potential need for our environment. This research aims to synthesize and investigate a ceramic-based nanomaterial catalyst for the degradation of dye solution under exposure to sunlight. A reduced graphene oxide-ZnS (rGO-ZnS) nanomaterial was qualitatively synthesized using a solvothermal method. The prepared nanomaterial was characterized using XRD, SEM, HR-TEM, EDX, XPS, and FT-IR techniques. The photocatalytic activity of the rGO-ZnS nanomaterial was checked using oxidative photocatalytic degradation of naphthol blue black dye (NBB) under direct sunlight irradiation. Here, the rGO/ZnS composite showed a significant photocatalytic performance to degraded NBB (93.7%) under direct solar light. Chemical Oxygen Demand (COD) measurements confirmed the mineralization of the dye. The influence of different radical scavengers on NBB degradation was studied. Optimum conditions for efficient degradation were determined. The antibacterial property of the prepared catalyst was studied.
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Affiliation(s)
- B Sathya Priya
- Department of Chemistry, Annamalai University, Annamalainagar 608002, Tamil Nadu, India
| | - Kanakaraj Aruchamy
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38436, Republic of Korea
| | - Tae Hwan Oh
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38436, Republic of Korea
| | - Balakrishna Avula
- Department of Chemistry, Rajeev Gandhi Memorial College of Engineering and Technology (Autonomous), Nandyal 518501, Andhra Pradesh, India
| | - Imran Hasan
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - M Shanthi
- Department of Chemistry, Annamalai University, Annamalainagar 608002, Tamil Nadu, India
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6
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Bakos LP, Bohus M, Szilágyi IM. Investigating the Reduction/Oxidation Reversibility of Graphene Oxide for Photocatalytic Applications. Molecules 2023; 28:molecules28114344. [PMID: 37298815 DOI: 10.3390/molecules28114344] [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: 02/24/2023] [Revised: 04/17/2023] [Accepted: 05/09/2023] [Indexed: 06/12/2023] Open
Abstract
The aim of the study was to analyze the reversibility of the cycle of graphene oxide (GO), reduced GO, and GO obtained by consecutive reoxidation of reduced GO. Accordingly, GO was heated in three different atmospheres (oxidizing, inert, and reducing, i.e., air, nitrogen, and argon/hydrogen mixture, respectively) at 400 °C to obtain reduced GO with varying composition. The bare GO and the RGO samples were oxidized or reoxidized with HNO3. The thermal properties, composition, bonds, and structure of the samples were investigated with TG/DTA, EDX, Raman spectroscopy, and XRD. Their photocatalytic activity was tested by decomposing methyl orange dye under UV light irradiation.
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Affiliation(s)
- László Péter Bakos
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szent Gellért tér 4, H-1111 Budapest, Hungary
| | - Marcell Bohus
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szent Gellért tér 4, H-1111 Budapest, Hungary
| | - Imre Miklós Szilágyi
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szent Gellért tér 4, H-1111 Budapest, Hungary
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Guo Y, Dai Y, Wang Y, Zuo G, Long T, Li S, Li H, Sun C, Zhao W. Boosted visible-light-driven degradation over stable ternary heterojunction as a plasmonic photocatalyst: Mechanism exploration, pathway and toxicity evaluation. J Colloid Interface Sci 2023; 641:758-781. [PMID: 36965346 DOI: 10.1016/j.jcis.2023.03.064] [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: 12/27/2022] [Revised: 02/20/2023] [Accepted: 03/09/2023] [Indexed: 03/16/2023]
Abstract
The incorporation of plasmonic metals into semiconductors forming heterojunction photocatalysts is a promising route to enhance the photocatalytic performance in visible light. In this work, we reported the visible-light-driven one-dimensional (1D) nanostick silver/silver sulfide (Ag/Ag2S) photocatalyst combining with two-dimensional (2D) nanosheet reduced graphene oxide intersected by hollow structure (h-RGO) was prepared via a feasible approach at room temperature. The density of Ag depositing on the surface of Ag2S was easily tuned by the concentration of sodium borohydride and the silicon dioxide nanospheres were employed as templates in the preparation of h-RGO by the layer-by-layer (LBL) assembly. The ternary plasmonic Ag/Ag2S/h-RGO photocatalysts exhibited better photocatalytic performance for degradation of naphthalene (95.95%) and 1-naphthol (98.65%) under visible light than the pure Ag2S, composite Ag/Ag2S and composite Ag/Ag2S/RGO. Localized surface plasmon resonance of Ag, heterojunction formed between Ag/Ag2S and RGO and the unique characteristics of h-RGO, which included higher specific surface areas, more efficient reflections of light and more active sites than RGO for boosting separation efficiency of charge carriers, were all responsible for such enhancement. By combining the characterization results with various computations, the mechanism, potential degradation pathways and the toxicity of the generated intermediates for photodegradation were examined. In addition to offering profound insight into the expansion of effective plasmonic photocatalysts with novel structures, the current study is beneficial to ease the environmental crisis to a certain extent.
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Affiliation(s)
- Yang Guo
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210000, China; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China; Department of Plant, Soil and Microbial Sciences, Plant and Soil Science Building 1066 Bogue Street, Michigan State University, East Lansing, MI 48824, United States
| | - Yuxuan Dai
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Yuting Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Gancheng Zuo
- School of Environment, Nanjing Normal University, Nanjing, Jiangsu 210023, China
| | - Tao Long
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210000, China
| | - Shijie Li
- Institute of Innovation & Application, Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, Zhejiang Province 316022, China
| | - Hui Li
- Department of Plant, Soil and Microbial Sciences, Plant and Soil Science Building 1066 Bogue Street, Michigan State University, East Lansing, MI 48824, United States
| | - Cheng Sun
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China.
| | - Wei Zhao
- Department of Mechanical Engineering, University of Hong Kong, Pokfulam Road, Hong Kong; School of Materials Engineering, Changshu Institute of Technology, Changshu, China
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Jacques A, Devaux A, Rubay C, Pennetreau F, Desmecht A, Robeyns K, Hermans S, Elias B. Polypyridine Iridium(III) and Ruthenium(II) Complexes for Homogeneous and Graphene‐Supported Photoredox Catalysis. ChemCatChem 2023. [DOI: 10.1002/cctc.202201672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Affiliation(s)
- Alexandre Jacques
- Institute of Condensed Matter and Nanosciences Molecular Chemistry Materials and Catalysis Division (IMCN/MOST) Université catholique de Louvain (UCLouvain) Place Louis Pasteur 1 1348 Louvain-la-Neuve Belgium
| | - Alexandre Devaux
- Institute of Condensed Matter and Nanosciences Molecular Chemistry Materials and Catalysis Division (IMCN/MOST) Université catholique de Louvain (UCLouvain) Place Louis Pasteur 1 1348 Louvain-la-Neuve Belgium
| | - Christophe Rubay
- Institute of Condensed Matter and Nanosciences Molecular Chemistry Materials and Catalysis Division (IMCN/MOST) Université catholique de Louvain (UCLouvain) Place Louis Pasteur 1 1348 Louvain-la-Neuve Belgium
| | - Florence Pennetreau
- Institute of Condensed Matter and Nanosciences Molecular Chemistry Materials and Catalysis Division (IMCN/MOST) Université catholique de Louvain (UCLouvain) Place Louis Pasteur 1 1348 Louvain-la-Neuve Belgium
| | - Antonin Desmecht
- Institute of Condensed Matter and Nanosciences Molecular Chemistry Materials and Catalysis Division (IMCN/MOST) Université catholique de Louvain (UCLouvain) Place Louis Pasteur 1 1348 Louvain-la-Neuve Belgium
| | - Koen Robeyns
- Institute of Condensed Matter and Nanosciences Molecular Chemistry Materials and Catalysis Division (IMCN/MOST) Université catholique de Louvain (UCLouvain) Place Louis Pasteur 1 1348 Louvain-la-Neuve Belgium
| | - Sophie Hermans
- Institute of Condensed Matter and Nanosciences Molecular Chemistry Materials and Catalysis Division (IMCN/MOST) Université catholique de Louvain (UCLouvain) Place Louis Pasteur 1 1348 Louvain-la-Neuve Belgium
| | - Benjamin Elias
- Institute of Condensed Matter and Nanosciences Molecular Chemistry Materials and Catalysis Division (IMCN/MOST) Université catholique de Louvain (UCLouvain) Place Louis Pasteur 1 1348 Louvain-la-Neuve Belgium
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Nosrati A, Javanshir S, Feyzi F, Amirnejat S. Effective CO 2 Capture and Selective Photocatalytic Conversion into CH 3OH by Hierarchical Nanostructured GO-TiO 2-Ag 2O and GO-TiO 2-Ag 2O-Arg. ACS OMEGA 2023; 8:3981-3991. [PMID: 36743052 PMCID: PMC9893446 DOI: 10.1021/acsomega.2c06753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 01/05/2023] [Indexed: 06/18/2023]
Abstract
The attenuation of greenhouse gases, especially CO2, as one of the main causes of global warming and their conversion into valuable materials are among the challenges that must be met in the 21st century. For this purpose, hierarchical ternary and quaternary hybrid photocatalysts based on graphene oxide, TiO2, Ag2O, and arginine have been developed for combined CO2 capture and photocatalytic reductive conversion to methanol under visible and UV light irradiation. The material's band gap energy was estimated from the diffuse reflectance spectroscopy (DRS) Tauc analysis algorithm. Structural and morphological properties of the synthesized photocatalysts were studied using various analytical techniques such as Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The calculated band gaps for GO-TiO2-Ag2O and GO-TiO2-Ag2O-Arg were 3.18 and 2.62 eV, respectively. This reduction in the band gap showed that GO-TiO2-Ag2O-Arg has a significant visible light photocatalytic ability. The investigation of CO2 capture for the designed catalyst showed that GO-TiO2-Ag2O-Arg and GO-TiO2-Ag2O have high CO2 absorption capacities (1250 and 1185 mmol g-1, respectively, at 10 bar and 273 K under visible light irradiation). The amounts of methanol produced by GO-TiO2-Ag2O and GO-TiO2-Ag2O-Arg were 8.154 and 5.1 μmol·gcat1·h-1 respectively. The main advantages of this study are the high efficiencies and selectivity of catalysts toward methanol formation. The reaction mechanism to understand the role of hybrid photocatalysts for CO2 conversion is deliberated. In addition, these catalysts remain stable during the photocatalytic process and can be used repeatedly, proving to be enlightening for environmental research.
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Affiliation(s)
- Aliakbar Nosrati
- Heterocyclic
Chemistry Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran16846-13114, Iran
| | - Shahrzad Javanshir
- Heterocyclic
Chemistry Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran16846-13114, Iran
| | - Farzaneh Feyzi
- Thermodynamics
Research Laboratory, School of Chemical Engineering, Iran University of Science and Technology, Tehran1684613114, Iran
| | - Sara Amirnejat
- Heterocyclic
Chemistry Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran16846-13114, Iran
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10
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Alhindawy IG, Mira HI, Youssef AO, Abdelwahab SM, Zaher AA, El-Said WA, Elshehy EA, Abdelkader AM. Cobalt doped titania-carbon nanosheets with induced oxygen vacancies for photocatalytic degradation of uranium complexes in radioactive wastes. NANOSCALE ADVANCES 2022; 4:5330-5342. [PMID: 36540120 PMCID: PMC9724698 DOI: 10.1039/d2na00467d] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 10/05/2022] [Indexed: 06/03/2023]
Abstract
The photocatalytic degradation of uranium complexes is considered among the most efficient techniques for the efficient removal of uranium ions/complexes from radioactive wastewater. Described here is a nanostructured photocatalyst based on a cobalt-doped TiO2 composite with induced oxygen vacancies (Co@TiO2-C) for the photocatalytic removal of uranium complexes from contaminated water. The synergy between oxygen vacancies and Co-doping produced a material with a 1.7 eV bandgap, while the carbon network facilitates electron movement and hinders the e-h recombination. As a result, the new photocatalyst enables the decomposition of uranium-arsenazo iii complexes (U-ARZ3), followed by photocatalytic reduction of hexavalent uranium to insoluble tetravalent uranium. Combined with the nanosheet structure's high surface area, the photocatalytic decomposition, reduction efficiency, and kinetics were significantly enhanced, achieving almost complete U(vi) removal in less than 20 minutes from solution with a concentration as high as 1000 mL g-1. Moreover, the designed photocatalyst exhibits excellent stability and reusability without decreasing the photocatalytic performance after 5 cycles.
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Affiliation(s)
| | - Hamed I Mira
- Nuclear Materials Authority El Maadi Cairo Egypt
| | - Ahmed O Youssef
- Department of Chemistry, Faculty of Science, Ain Shams University Cairo Egypt
| | - Saad M Abdelwahab
- Department of Chemistry, Faculty of Science, Ain Shams University Cairo Egypt
| | - Ahmed A Zaher
- Department of Chemistry, Faculty of Science, Mansoura University Elmansoura Egypt
| | - Waleed A El-Said
- Department of Chemistry, Faculty of Science, Assiut University Assiut 71516 Egypt
- University of Jeddah, College of Science, Department of Chemistry PO Box 80327 Jeddah 21589 Saudi Arabia
| | | | - Amr M Abdelkader
- Department of Engineering, Bournemouth University Talbot Campus, Fern Barrow Poole BH12 5BB UK
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11
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Metal oxide/2D layered TMDs composites for H2 evolution reaction via photocatalytic water splitting – A mini review. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109971] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Almaie S, Vatanpour V, Rasoulifard MH, Koyuncu I. Volatile organic compounds (VOCs) removal by photocatalysts: A review. CHEMOSPHERE 2022; 306:135655. [PMID: 35817187 DOI: 10.1016/j.chemosphere.2022.135655] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 07/03/2022] [Accepted: 07/05/2022] [Indexed: 06/15/2023]
Abstract
Amplified anthropogenic release of volatile organic compounds (VOCs) gets worse air quality and human health. Photocatalytic degradation of VOCs is the practical strategy due to its low cost, simplicity, high efficiency, and environmental sustainability. Different types of photocatalyst activated by UV and visible lights are applied for VOC degradation. This review tries to investigate the state-of-art of recently published papers on this subject with a focus on the high-efficiency photocatalyst. The novel photocatalysts are introduced and enhancing photocatalytic activity strategies such as the hybrid of two/three photocatalyst, impurity doping, and heterojunctions with narrow bandgap semiconductors have been explained. The procedures of visible light activation of the photocatalysts are discussed with attention to current problems and future challenges. In addition, effective operational parameters in the photocatalytic degradation of VOCs have been reviewed with their advantages and drawbacks. A series of strategies are developed for the efficient utilization of visible light photocatalysts and improving new materials or design structures to degrade produced toxic intermediates/by-products during photocatalytic degradation of VOCs. This review shows that there are significant challenges in the applications of photocatalysts in the selective removal of VOCs. Several approaches should be combined to produce synergistic effects, which may lead to much higher photocatalytic performance than individual strategies. Another challenge is to develop efficient photocatalysts to meet real problems on an industrial scale.
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Affiliation(s)
- Soudeh Almaie
- Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - Vahid Vatanpour
- Department of Applied Chemistry, Faculty of Chemistry, Kharazmi University, Tehran, 15719-14911, Iran; National Research Center on Membrane Technologies, Istanbul Technical University, Maslak, 34469, Istanbul, Turkey; Environmental Engineering Department, Istanbul Technical University, Maslak, Istanbul, 34469, Turkey.
| | - Mohammad Hossein Rasoulifard
- Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran.
| | - Ismail Koyuncu
- National Research Center on Membrane Technologies, Istanbul Technical University, Maslak, 34469, Istanbul, Turkey; Environmental Engineering Department, Istanbul Technical University, Maslak, Istanbul, 34469, Turkey
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13
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Enhanced photocatalytic activity of reduced graphene oxide-TiO2nanocomposite for picric acid degradation. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109660] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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14
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Zaera F. Designing Sites in Heterogeneous Catalysis: Are We Reaching Selectivities Competitive With Those of Homogeneous Catalysts? Chem Rev 2022; 122:8594-8757. [PMID: 35240777 DOI: 10.1021/acs.chemrev.1c00905] [Citation(s) in RCA: 69] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A critical review of different prominent nanotechnologies adapted to catalysis is provided, with focus on how they contribute to the improvement of selectivity in heterogeneous catalysis. Ways to modify catalytic sites range from the use of the reversible or irreversible adsorption of molecular modifiers to the immobilization or tethering of homogeneous catalysts and the development of well-defined catalytic sites on solid surfaces. The latter covers methods for the dispersion of single-atom sites within solid supports as well as the use of complex nanostructures, and it includes the post-modification of materials via processes such as silylation and atomic layer deposition. All these methodologies exhibit both advantages and limitations, but all offer new avenues for the design of catalysts for specific applications. Because of the high cost of most nanotechnologies and the fact that the resulting materials may exhibit limited thermal or chemical stability, they may be best aimed at improving the selective synthesis of high value-added chemicals, to be incorporated in organic synthesis schemes, but other applications are being explored as well to address problems in energy production, for instance, and to design greener chemical processes. The details of each of these approaches are discussed, and representative examples are provided. We conclude with some general remarks on the future of this field.
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Affiliation(s)
- Francisco Zaera
- Department of Chemistry and UCR Center for Catalysis, University of California, Riverside, California 92521, United States
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15
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Abd Aziz A, Khatun F, Uddin Monir M, Lan Ching S, Kah Hon L. TiO 2: A Semiconductor Photocatalyst. TITANIUM DIOXIDE - ADVANCES AND APPLICATIONS 2022. [DOI: 10.5772/intechopen.99256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Titanium dioxide (TiO2) is considered as an inert and safe material and has been used in many applications for decades. TiO2 have been widely studied, due to its interesting general properties in a wide range of fields including catalysis, antibacterial agents, in civil as nano-paint (self-cleaning) and especially photocatalysis, and that affect the quality of life. Thus, the development of nanotechnologies TiO2 nanoparticles, with numerous novel and useful properties, are increasingly manufactured and used. TiO2 doped with noble metal are good candidates in the performance these applications. The fascinating physical and chemical features of TiO2 depend on the crystal phase, size and shape of particles. For example, varying phases of crystalline TiO2 have different band gaps that rutile TiO2 of 3.0 eV and anatase TiO2 of 3.2 eV, determine the photocatalytic performance of TiO2. This chapter explains basic information on TiO2 and theoretical concepts of nanostructure of TiO2 nanoparticles as a semiconductor photocatalyst.
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16
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Tantubay K, Das P, Baskey Sen M. Hydrogen peroxide-assisted photocatalytic dye degradation over reduced graphene oxide integrated ZnCr 2O 4 nanoparticles. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:17309-17318. [PMID: 34664168 DOI: 10.1007/s11356-021-17105-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 10/14/2021] [Indexed: 06/13/2023]
Abstract
Zinc chromite nanoparticles (NPs) and zinc chromite-reduced graphene oxide (ZnCr2O4-rGO) nanocomposite have been synthesized by the combined effects of reflux condensation and calcination processes. The structural properties were characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR), UV-visible studies, etc. Structural morphology was investigated by field emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM) that indicate the formation of particles in the nanometer regime. The presence of the elements Zn, Cr, O and C has been confirmed by energy-dispersive X-ray spectroscopy (EDX) images which show the purity of the synthesized products. The photocatalytic activities of both as-prepared samples under visible light irradiation were investigated in presence of hydrogen peroxide (H2O2) and the results show that ZnCr2O4-rGO nanocomposite has a quite higher photo-activity response than virgin ZnCr2O4 NPs. The enhanced photo response indicates that, in ZnCr2O4, the photo-induced electrons favor to transfer to the rGO surface and the recombination of electron-hole pairs inhibited for which it results in the significantly increased photocatalytic activity for the ZnCr2O4-rGO photocatalyst and this phenomenon is also supported by the band gap value and photoluminescence results. Our outcomes demonstrate that ZnCr2O4-rGO nanocomposite is a more promising material to build up an efficient photocatalyst for waste water treatment.
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Affiliation(s)
- Kartik Tantubay
- Materials Research Laboratory, Department of Chemistry, The University of Burdwan, Golapbag, Burdwan, West Bengal, 713104, India
| | - Piu Das
- Materials Research Laboratory, Department of Chemistry, The University of Burdwan, Golapbag, Burdwan, West Bengal, 713104, India
| | - Moni Baskey Sen
- Materials Research Laboratory, Department of Chemistry, The University of Burdwan, Golapbag, Burdwan, West Bengal, 713104, India.
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17
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Wang B, Chen Y, Yang M, Lin L, Zhao L, Zhao M, Jiang Y, Zhang L, Wang Y, Chen H, Zhang Y. Capillarity assisted interfacial reaction fabrication of spatially separated site-specific AgI/Fe3O4/Ag3PO4@GF for efficient photocatalytic reaction. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.128032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Kaushik J, Kumar V, Tripathi KM, Sonkar SK. Sunlight-promoted photodegradation of Congo red by cadmium-sulfide decorated graphene aerogel. CHEMOSPHERE 2022; 287:132225. [PMID: 34547561 DOI: 10.1016/j.chemosphere.2021.132225] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/02/2021] [Accepted: 09/07/2021] [Indexed: 06/13/2023]
Abstract
Herein, a simpler-viable methodology for the surface decoration of pear fruit derived graphene aerogel (GA) via cadmium sulfide (CdS) has been presented. GA can be easily synthesized from bio-mass, which provide an economic advantage. Surface decoration via CdS imparts photocatalytic activities in functionalized graphene aerogels (f-GA). CdS-f-GA is being explored here as a photocatalyst for the degradation of a toxic azo dye named Congo red in the presence of sunlight. The rate and mechanism associated with photodegradation were analyzed by performing kinetics and radical trap-based quenching experiments. Nuclear magnetic resonance and fourier transform infrared spectroscopy analyses of the control and photodegraded products were performed to ensure the degradation of the organic framework of Congo red. Additionally, the real-life applicability of CdS-f-GA was also analyzed by degrading the dye in different types of industrial samples (via the method of external spiking), which can advance its practical relevance.
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Affiliation(s)
- Jaidev Kaushik
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur, 302017, India
| | - Vishrant Kumar
- Department of Chemical Engineering, Indian Institute of Science Education and Research Bhopal, Bhopal, 462066, Madhya Pradesh, India
| | - Kumud Malika Tripathi
- Department of Chemistry, Indian Institute of Petroleum and Energy, Visakhapatnam, 530003, Andhra Pradesh, India.
| | - Sumit Kumar Sonkar
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur, 302017, India.
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19
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Immobilised rGO/TiO2 Nanocomposite for Multi-Cycle Removal of Methylene Blue Dye from an Aqueous Medium. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app12010385] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This work presents the immobilisation of titanium dioxide (TiO2) nanoparticles (NPs) and reduced graphene oxide (rGO)-TiO2 nanocomposite on glass sheets for photocatalytic degradation of methylene blue (MB) under different radiation sources such as ultraviolet and simulated solar radiation. The TiO2 NPs and rGO-TiO2 nanocomposite were synthesised through a simple hydrothermal method of titanium isopropoxide precursor followed by calcination treatment. Deposition of prepared photocatalysts was performed by spin-coating method. Additionally, ethylene glycol was mixed with the prepared TiO2 NPs and rGO-TiO2 nanocomposite to enhance film adhesion on the glass surface. The photocatalytic activity under ultraviolet and simulated solar irradiation was examined. Further, the influence of different water matrices (milli-Q, river, lake, and seawater) and reactive species (h+, •OH, and e−) on the photocatalytic efficiency of the immobilised rGO/TiO2 nanocomposite was careful assessed. MB dye photocatalytic degradation was found to increase with increasing irradiation time for both irradiation sources. The immobilisation of prepared photocatalysts is very convenient for environment applications, due to easy separation and reusability, and the investigated rGO/TiO2-coated glass sheets demonstrated high efficiency in removing MB dye from an aqueous medium during five consecutive cycles.
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20
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Ajith MP, Aswathi M, Priyadarshini E, Rajamani P. Recent innovations of nanotechnology in water treatment: A comprehensive review. BIORESOURCE TECHNOLOGY 2021; 342:126000. [PMID: 34587582 DOI: 10.1016/j.biortech.2021.126000] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 09/13/2021] [Accepted: 09/19/2021] [Indexed: 06/13/2023]
Abstract
Environmental pollution from organic and inorganic pollutants poses a threat to the ecosystem. Pollutant's prevalence and persistence have increased significantly in recent years. In order to enhance the quality of naturally accessible water to a level suitable for human consumption, a number of techniques have been employed. In this context, the use of cutting-edge nanotechnology to classical process engineering paves the way for technical encroachments in advanced water and wastewater technology. Nanotechnology has the potential to ameliorate the quality, availability, and viability of water supplies in the long run by facilitating reuse, recycling and remediation of water. The promising role of nanotechnology in wastewater remediation is highlighted in this paper, which also covers current advancements in nanotechnology-mediated remediation systems. Moreover, nano-based materials such as nano-adsorbents, photocatalysts, nano-metals and nanomembranes are discussed in this review of recent breakthroughs in nanotechnologies for water contaminant remediation.
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Affiliation(s)
- M P Ajith
- School of Environmental Science, Jawaharlal Nehru University, New Delhi 110067, India
| | - M Aswathi
- Department of Biomedical Engineering, Indian Institute of Technology -Hyderabad, Hyderabad 502285, India
| | - Eepsita Priyadarshini
- School of Environmental Science, Jawaharlal Nehru University, New Delhi 110067, India
| | - Paulraj Rajamani
- School of Environmental Science, Jawaharlal Nehru University, New Delhi 110067, India.
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21
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Assessment of antioxidant and cytotoxicity activities against A-549 lung cancer cell line by synthesized reduced graphene oxide nanoparticles mediated by Camellia sinensis. 3 Biotech 2021; 11:494. [PMID: 34881157 DOI: 10.1007/s13205-021-03015-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 09/20/2021] [Indexed: 10/19/2022] Open
Abstract
Camellia sinensis (green tea leaves) which acts as a reducing agent was used for the reduction of graphene oxide (GO) to obtain reduced graphene oxide (RGO). Anionic surfactant SDS was used to enhance the stability of synthesized reduced graphene oxide nanoparticles. Characterized reduced graphene oxide nanoparticle grain size was calculated to be 3.92 nm from the X-ray diffraction method, whereas zeta potential was measured - 35.23 ± 5.45 mV at room temperature. Antioxidant and cell cytotoxicity against A-549 lung carcinoma cells were also studied. Phytochemical content of Camellia sinensis imparts feasible DPPH activity of 85.98 ± 2.49% against RGO, whereas ABTS scavenging activity was found to be 88.87 ± 1.74% followed by measurement of the total phenolic content of 842 ± 13.33 µg/gm. RGO at concentration 400 µg/ml showed an optimum level of hemolysis at pH 7.4 (4.92 ± 1.20%) than pH 5.6 (11.15 ± 0.03%). Cytotoxicity activity studied by MTT assay of RGO on A-549 lung carcinomas cells was compared with drug doxorubicin. The bandgap energy of RGO was calculated to be 3.97 eV from absorption data, hence reveals the generation of oxidative stress in the A-549 lung cancer cell line. Thus, the surfactant and phytochemicals found in Camellia sinensis enhanced the stability of RGO, thereby providing enough energy to destabilize the target cells without affecting healthy cells, hence suggests its role in therapeutics application. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13205-021-03015-z.
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22
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Octahedral Shaped PbTiO 3-TiO 2 Nanocomposites for High-Efficiency Photocatalytic Hydrogen Production. NANOMATERIALS 2021; 11:nano11092295. [PMID: 34578611 PMCID: PMC8469028 DOI: 10.3390/nano11092295] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 08/22/2021] [Accepted: 08/31/2021] [Indexed: 11/16/2022]
Abstract
In this work, octahedral shaped PbTiO3-TiO2 nanocomposites have been synthesized by a facile hydrothermal method, where perovskite ferroelectric PbTiO3 nanooctahedra were employed as substrate. The microstructures of the composites were investigated systemically by using XRD, SEM, TEM and UV-Vis spectroscopy. It was revealed that anantase TiO2 nanocrystals with a size of about 5 nm are dispersed on the surface of the {111} facets of the nanooctahedron crystals. Photocatalytic hydrogen production of the nanocomposites has been evaluated in a methanol alcohol-water solution under UV light enhanced irradiation. The H2 evolution rate of the nanocomposites increased with an increased loading of TiO2 on the nanooctahedra. The highest H2 evolution rate was 630.51 μmol/h with the highest concentration of TiO2 prepared with 2 mL tetrabutyl titanate, which was about 36 times higher than that of the octahedron substrate. The enhanced photocatalytic reactivity of the nanocomposites is possibly ascribed to the UV light absorption of the nanooctahedral substrates, efficient separation of photo-generated carriers via the interface and the reaction on the surface of the TiO2 nanocrystals.
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23
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Padmanabhan NT, Thomas N, Louis J, Mathew DT, Ganguly P, John H, Pillai SC. Graphene coupled TiO 2 photocatalysts for environmental applications: A review. CHEMOSPHERE 2021; 271:129506. [PMID: 33445017 DOI: 10.1016/j.chemosphere.2020.129506] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 12/28/2020] [Accepted: 12/29/2020] [Indexed: 05/28/2023]
Abstract
Nanostructured photocatalysts have always offered opportunities to solve issues concerned with the environmental challenges caused by rapid urbanization and industrialization. These materials, due to their tunable physicochemical characteristics, are capable of providing a clean and sustainable ecosystem to humanity. One of the current thriving research focuses of visible-light-driven photocatalysts is on the nanocomposites of titanium dioxide (TiO2) with carbon nanostructures, especially graphene. Coupling TiO2 with graphene has proven more active by photocatalysis than TiO2 alone. It is generally considered that graphene sheets act as an electron acceptor facilitating the transfer and separation of photogenerated electrons during TiO2 excitation, thereby reducing electron-hole recombination. This study briefly reviews the fundamental mechanism and interfacial charge-transfer dynamics in TiO2/graphene nanocomposites. Design strategies of various graphene-based hybrids are highlighted along with some specialized synthetic routes adopted to attain preferred properties. Importantly, the enhancing interfacial charge transfer of photogenerated e¯CB through the graphene layers by morphology orientation of TiO2, predominated exposure of their high energy crystal facets, defect engineering, enhancing catalytic sites in graphene, constructing dedicated architectures, tuning the nanomaterial dimensionality at the interface, and employing the synergism adopted through various modifications, are systematically compiled. Portraying the significance of these photocatalytic hybrids in environmental remediation, important applications including air and water purification, self-cleaning surfaces, H2 production, and CO2 reduction to desired fuels, are addressed.
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Affiliation(s)
- Nisha T Padmanabhan
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kerala, India
| | - Nishanth Thomas
- Nanotechnology and Bio-engineering Research Group, Department of Environmental Science, Institute of Technology Sligo, Sligo, Ireland; Centre for Precision Engineering, Materials and Manufacturing Research (PEM), Institute of Technology Sligo, Sligo, Ireland
| | - Jesna Louis
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kerala, India; Inter University Centre for Nanomaterials and Devices, Cochin University of Science and Technology, Kerala, India
| | - Dhanu Treasa Mathew
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kerala, India
| | - Priyanka Ganguly
- Nanotechnology and Bio-engineering Research Group, Department of Environmental Science, Institute of Technology Sligo, Sligo, Ireland; Centre for Precision Engineering, Materials and Manufacturing Research (PEM), Institute of Technology Sligo, Sligo, Ireland
| | - Honey John
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kerala, India; Inter University Centre for Nanomaterials and Devices, Cochin University of Science and Technology, Kerala, India
| | - Suresh C Pillai
- Nanotechnology and Bio-engineering Research Group, Department of Environmental Science, Institute of Technology Sligo, Sligo, Ireland; Centre for Precision Engineering, Materials and Manufacturing Research (PEM), Institute of Technology Sligo, Sligo, Ireland.
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24
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Patil MS, Kitchamsetti N, Mulani SR, Rondiya SR, Deshpande NG, Patil RA, Cross RW, Dzade NY, Sharma KK, Patil PS, Ma YR, Cho HK, Devan RS. Photocatalytic behavior of Ba(Sb/Ta)2O6 perovskite for reduction of organic pollutants: Experimental and DFT correlation. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.04.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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25
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Carminati SA, Rodríguez-Gutiérrez I, de Morais A, da Silva BL, Melo MA, Souza FL, Nogueira AF. Challenges and prospects about the graphene role in the design of photoelectrodes for sunlight-driven water splitting. RSC Adv 2021; 11:14374-14398. [PMID: 35424005 PMCID: PMC8698315 DOI: 10.1039/d0ra10176a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 03/31/2021] [Indexed: 12/02/2022] Open
Abstract
Graphene and its derivatives have emerged as potential materials for several technological applications including sunlight-driven water splitting reactions. This review critically addresses the latest achievements concerning the use of graphene as a player in the design of hybrid-photoelectrodes for photoelectrochemical cells. Insights about the charge carrier dynamics of graphene-based photocatalysts which include metal oxides and non-metal oxide semiconductors are also discussed. The concepts underpinning the continued progress in the field of graphene/photoelectrodes, including different graphene structures, architecture as well as the possible mechanisms for hydrogen and oxygen reactions are also presented. Despite several reports having demonstrated the potential of graphene-based photocatalysts, the achieved performance remains far from the targeted benchmark efficiency for commercial application. This review also highlights the challenges and opportunities related to graphene application in photoelectrochemical cells for future directions in the field.
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Affiliation(s)
- Saulo A Carminati
- Institute of Chemistry, University of Campinas (UNICAMP) PO Box 6154 Campinas São Paulo 13083-970 Brazil
| | - Ingrid Rodríguez-Gutiérrez
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC (UFABC) Santo André São Paulo 09210-580 Brazil
- Brazilian Nanotechnology National Laboratory (LNNano) Campinas São Paulo 13083-970 Brazil
| | - Andreia de Morais
- Center for Information Technology Renato Archer (CTI Renato Archer) Rodovia D. Pedro I, km 143.6 13069-901 Campinas SP Brazil
| | - Bruno L da Silva
- Institute of Chemistry, University of Campinas (UNICAMP) PO Box 6154 Campinas São Paulo 13083-970 Brazil
| | - Mauricio A Melo
- Institute of Chemistry, Fluminense Federal University Outeiro de São João Batista, Campus do Valonguinho, Niterói Rio de Janeiro 24020-141 Brazil
| | - Flavio L Souza
- Institute of Chemistry, University of Campinas (UNICAMP) PO Box 6154 Campinas São Paulo 13083-970 Brazil
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC (UFABC) Santo André São Paulo 09210-580 Brazil
- Brazilian Nanotechnology National Laboratory (LNNano) Campinas São Paulo 13083-970 Brazil
| | - Ana F Nogueira
- Institute of Chemistry, University of Campinas (UNICAMP) PO Box 6154 Campinas São Paulo 13083-970 Brazil
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26
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Li L, Zhai L, Liu H, Li B, Li M, Wang B. A novel H2O2photoelectrochemical sensor based on ternary RGO/Ag-TiO2 nanotube arrays nanocomposite. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.137851] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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27
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Jung SH, Kim KT, Lee GS, Sun JY, Kim DW, Eom YS, Yang DY, Yu J, Park JM, Hyeon DY, Park KI. Synergistically Improved Thermoelectric Energy Harvesting of Edge-Oxidized-Graphene-Bridged N-Type Bismuth Telluride Thick Films. ACS APPLIED MATERIALS & INTERFACES 2021; 13:5125-5132. [PMID: 33478215 DOI: 10.1021/acsami.0c20509] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Power generation through the thermoelectric (TE) effect in small-sized devices requires a submillimeter-thick film that is beneficial to effectively maintain ΔT compared with a micron-scale thin film. However, most TE thick films, which are fabricated using printing technologies, suffer from low electrical conductivity due to the porous structures formed after sintering of the organic binder-mixed TE ink. In this study, we report an n-type TE thick film fabricated through bar-coating of the edge-oxidized-graphene (EOG)-dispersed Bi2.0Te2.7Se0.3 (BTS) paste with copper dopants. We have found that EOG provides the conducting pathway for carriers through electrical bridging between the separated BTS grains in porous TE thick films. The simultaneous enhancement in electrical conductivity and the Seebeck coefficient of the EOG-bridged TE film result in a maximum power factor of 1.54 mW·m-1·K-2 with the addition of 0.01 wt % EOG. Furthermore, the single element made of an n-type EOG-bridged BTS exhibits a superior output power of 1.65 μW at ΔT = 80 K. These values are 5 times higher than those of bare BTS films. Our results clearly indicate that the utilization of EOG with a metal dopant exerts a synergistic effect for enhancing the electrical output performance of n-type TE thick films for thermal energy harvesters.
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Affiliation(s)
- Soo-Ho Jung
- Powder Materials Division, Korea Institute of Materials Science (KIMS), 797 Changwon-daero, Seongsan-gu, Changwon, Gyeongnam 51508, Republic of Korea
| | - Kyung Tae Kim
- Powder Materials Division, Korea Institute of Materials Science (KIMS), 797 Changwon-daero, Seongsan-gu, Changwon, Gyeongnam 51508, Republic of Korea
| | - Gi-Seung Lee
- Powder Materials Division, Korea Institute of Materials Science (KIMS), 797 Changwon-daero, Seongsan-gu, Changwon, Gyeongnam 51508, Republic of Korea
| | - Jeong-Yun Sun
- Department of Material Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
- Research Institute of Advanced Materials (RIAM), Seoul National University, Seoul 151-744, Republic of Korea
| | - Dong Won Kim
- Powder Materials Division, Korea Institute of Materials Science (KIMS), 797 Changwon-daero, Seongsan-gu, Changwon, Gyeongnam 51508, Republic of Korea
| | - Yeong Seong Eom
- Powder Materials Division, Korea Institute of Materials Science (KIMS), 797 Changwon-daero, Seongsan-gu, Changwon, Gyeongnam 51508, Republic of Korea
| | - Dong Yeol Yang
- Powder Materials Division, Korea Institute of Materials Science (KIMS), 797 Changwon-daero, Seongsan-gu, Changwon, Gyeongnam 51508, Republic of Korea
| | - Jihun Yu
- Powder Materials Division, Korea Institute of Materials Science (KIMS), 797 Changwon-daero, Seongsan-gu, Changwon, Gyeongnam 51508, Republic of Korea
| | - Jong Min Park
- School of Materials Science and Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Dong Yeol Hyeon
- School of Materials Science and Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Kwi-Il Park
- School of Materials Science and Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
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28
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Kharatzadeh E, Masharian SR, Yousefi R. The effects of S-doping concentration on the photocatalytic performance of SnSe/S-GO nanocomposites. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2020.12.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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29
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Azarang M, Bakhtiyari A, Rakhshani R, Davarpanah AM, Aliahmad M, Farifteh Jahantigh M. Green gelatin-assisted: Synthesis of Co3O4NPs@rGO nanopowder for highly efficient magnetically separable methylene orange dye degradation. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2020.12.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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30
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Mandal S, Mallapur S, Reddy M, Singh JK, Lee DE, Park T. An Overview on Graphene-Metal Oxide Semiconductor Nanocomposite: A Promising Platform for Visible Light Photocatalytic Activity for the Treatment of Various Pollutants in Aqueous Medium. Molecules 2020; 25:molecules25225380. [PMID: 33213017 PMCID: PMC7698509 DOI: 10.3390/molecules25225380] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/11/2020] [Accepted: 11/12/2020] [Indexed: 11/16/2022] Open
Abstract
Graphene is one of the most favorite materials for materials science research owing to its distinctive chemical and physical properties, such as superior conductivity, extremely larger specific surface area, and good mechanical/chemical stability with the flexible monolayer structure. Graphene is considered as a supreme matrix and electron arbitrator of semiconductor nanoparticles for environmental pollution remediation. The present review looks at the recent progress on the graphene-based metal oxide and ternary composites for photocatalysis application, especially for the application of the environmental remediation. The challenges and perspectives of emerging graphene-based metal oxide nanocomposites for photocatalysis are also discussed.
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Affiliation(s)
- Soumen Mandal
- Intelligent Construction Automation Center, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Korea;
| | - Srinivas Mallapur
- Department of Chemistry, REVA University, Kattigenahalli, Yelahanka, Bangalore 560024, Karnataka, India; (S.M.); (M.R.)
| | - Madhusudana Reddy
- Department of Chemistry, REVA University, Kattigenahalli, Yelahanka, Bangalore 560024, Karnataka, India; (S.M.); (M.R.)
| | - Jitendra Kumar Singh
- Innovative Durable Building and Infrastructure Research Center, Department of Architectural Engineering, Hanyang University, 1271 Sa3-dong, Sangnok-gu, Ansan 15588, Korea;
| | - Dong-Eun Lee
- School of Architecture, Civil, Environment, and Energy, Kyungpook National University, 1370, Sangyegk-Dong, Buk-Gu, Daegu 702701, Korea
- Correspondence: (D.-E.L.); (T.P.); Tel.: +82-3140-05291 (T.P.)
| | - Taejoon Park
- Department of Robotics Engineering, Hanyang University, 55 Hanyangdaehak-ro, Ansan, Gyeonggi-do 15588, Korea
- Correspondence: (D.-E.L.); (T.P.); Tel.: +82-3140-05291 (T.P.)
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Zubair NF, Jamil S, Fatima S, Khan SR, Khan MU, Janjua MRSA. Synthesis of needle like nano composite of rGO-Mn2O and their applications as photo-catalyst. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137874] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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32
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Fabrication of Highly Efficient Bi2Sn2O7/C3N4 Composite with Enhanced Photocatalytic Activity for Degradation of Organic Pollutants. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01726-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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33
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Vikrant K, Kim KH, Dong F, Giannakoudakis DA. Photocatalytic Platforms for Removal of Ammonia from Gaseous and Aqueous Matrixes: Status and Challenges. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02163] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Kumar Vikrant
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea
| | - Fan Dong
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu 611731, China
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Jafari Z, Baharfar R, Rad AS, Asghari S. Potential of graphene oxide as a drug delivery system for Sumatriptan: a detailed density functional theory study. J Biomol Struct Dyn 2020; 39:1611-1620. [PMID: 32107987 DOI: 10.1080/07391102.2020.1736161] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The adsorption property of Sumatriptan drug onto graphene oxide (GO) was studied using density functional theory (DFT) calculations. All possible initial positions of drug adsorption were considered to find out which one is energetically favorable. According to the achieved findings, the stronger interactions occurred between the positively polarized parts of the Sumatriptan (i.e. hydrogen atoms of the-OH and -NH parts) and negatively polarized oxygen atoms of the GO. The presence of non-covalent interactions of GO and Sumatriptan was confirmed based on the determined geometrical parameters, electronic structure analysis results, and adsorption energies. Different parameters such as frontier molecular orbital (FMO), natural bond orbital (NBO), dipole moment, and solation energy were investigated. Global indices such as hardness, softness, chemical potential, and electrophilicity of all systems were calculated and compared. The adsorption energy values were determined within the range of -8.39 to -10.59 kcal/mol (-1.87 to -5.67 BSSE corrected) in the water solvent for different adsorption geometries. The obtained results show that GO can act as a promising carrier/sensor for Sumatriptan drug in practical application.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Zahra Jafari
- Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
| | - Robabeh Baharfar
- Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
| | - Ali Shokuhi Rad
- Department of Chemical Engineering, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran
| | - Sakineh Asghari
- Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
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Abstract
A quantum nutcracker, a recently proposed catalytic system for hydrogen dissociation, consists of two inert components: an organic molecule such as a transition metal phthalocyanine and an inert surface such as Cu or Au. The reaction takes place at the interface between the two components, which are weakly bonded by Van der Waals (VdW) forces. Here, we explore a method used to tune the reaction barrier in a quantum nutcracker system for hydrogen dissociation. By employing density-functional-theory calculations, we find that the H2 entry barrier, which is the rate-limiting barrier, is reduced by replacing the phthalocyanine by porphyrin derivatives such as octaethylporphyrin (OEP) and tetraphenylporphyrin (TPP). The system remains active if a dissociated H atom is adsorbed on the transition metal ion. Metallic two-dimensional materials such as NbS2 and CoS2 are good candidates for the quantum nutcracker. The present design of a quantum nutcracker for hydrogen dissociation provides new opportunities with which to induce catalytic activity in VdW-bonded systems.
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Abd-Elsalam KA. Carbon nanomaterials: 30 years of research in agroecosystems. CARBON NANOMATERIALS FOR AGRI-FOOD AND ENVIRONMENTAL APPLICATIONS 2020:1-18. [DOI: 10.1016/b978-0-12-819786-8.00001-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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37
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Radhika N, Selvin R, Kakkar R, Umar A. Recent advances in nano-photocatalysts for organic synthesis. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2016.07.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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38
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Mestre AS, Carvalho AP. Photocatalytic Degradation of Pharmaceuticals Carbamazepine, Diclofenac, and Sulfamethoxazole by Semiconductor and Carbon Materials: A Review. Molecules 2019; 24:molecules24203702. [PMID: 31618947 PMCID: PMC6832631 DOI: 10.3390/molecules24203702] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 10/07/2019] [Accepted: 10/11/2019] [Indexed: 11/16/2022] Open
Abstract
The presence of pharmaceutical compounds in the environment is a reality that calls for more efficient water treatment technologies. Photocatalysis is a powerful technology available but the high energy costs associated with the use of UV irradiation hinder its large scale implementation. More sustainable and cheaper photocatalytic processes can be achieved by improving the sunlight harvesting and the synthesis of semiconductor/carbon composites has proved to be a promising strategy. Carbamazepine, diclofenac, and sulfamethoxazole were selected as target pharmaceuticals due to their recalcitrant behavior during conventional wastewater treatment and persistence in the environment, as properly reviewed. The literature data on the photocatalytic removal of carbamazepine, diclofenac, and sulfamethoxazole by semiconductor/carbon materials was critically revised to highlight the role of the carbon in the enhanced semiconductor performance under solar irradiation. Generally it was demonstrated that carbon materials induce red-shift absorption and they contribute to more effective charge separation, thus improving the composite photoactivity. Carbon was added as a dopant (C-doping) or as support or doping materials (i.e., nanoporous carbons, carbon nanotubes (CNTs), graphene, and derived materials, carbon quantum dots (CQDs), and biochars) and in the large majority of the cases, TiO2 was the semiconductor tested. The specific role of carbon materials is dependent on their properties but even the more amorphous forms, like nanoporous carbons or biochars, allow to prepare composites with improved properties compared to the bare semiconductor. The self-photocatalytic activity of the carbon materials was also reported and should be further explored. The removal and mineralization rates, as well as degradation pathways and toxicity of the treated solutions were also critically analyzed.
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Affiliation(s)
- Ana S Mestre
- Centro de Química e Bioquímica and Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal.
| | - Ana P Carvalho
- Centro de Química e Bioquímica and Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal.
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Munusamy G, Mani R, Varadharajan K, Narasimhan S, Munusamy C, Chandrasekaran B. α-Fe2O3@carbon core–shell nanostructure for luminescent upconversion and photocatalytic degradation of methyl orange. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-03986-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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40
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Abstract
The preparation of immobilized graphene-based photocatalyst layers is highly desired for environmental applications. In this study, the preparation of an immobilized reduced graphene oxide (rGO)/TiO2 composite by electrophoretic deposition (EPD) was optimized. It enabled quantitative deposition without sintering and without the use of any dispersive additive. The presence of rGO had beneficial effects on the photocatalytic degradation of 4-chlorophenol in an aqueous solution. A marked increase in the photocatalytic degradation rate was observed, even at very low concentrations of rGO. Compared with the TiO2 and GO/TiO2 reference layers, use of the rGO/TiO2 composite (0.5 wt% of rGO) increased the first-order reaction rate constant by about 70%. This enhanced performance was due to the increased formation of hydroxyl radicals that attacked the 4-chlorophenol molecules. The direct charge transfer mechanism had only limited effect on the degradation. Thus, EPD-prepared rGO/TiO2 layers appear to be suitable for environmental application.
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41
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Xu G, Li M, Wang Y, Zheng N, Yang L, Yu H, Yu Y. A novel Ag-BiOBr-rGO photocatalyst for enhanced ketoprofen degradation: Kinetics and mechanisms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 678:173-180. [PMID: 31075583 DOI: 10.1016/j.scitotenv.2019.04.418] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/25/2019] [Accepted: 04/27/2019] [Indexed: 06/09/2023]
Abstract
Ag-BiOBr-reduced graphene oxide (rGO) was synthesized for the first time and used to promote photocatalytic activity under visible-light irradiation. The Ag-BiOBr-rGO showed an excellent photocatalytic activity to degrade ketoprofen compared with other photocatalysts. The composites were comprehensively characterized to explore the mechanisms of the enhancement. Electron Paramagnetic Resonance and scavenger experiments demonstrated that the superoxide radical was the active species. Ketoprofen was completely removed in 120 min. The high photocatalytic activity and stability of the catalyst indicated that the Ag-BiOBr-rGO may have broad application prospects for eliminating pharmaceuticals from wastewater. Four reaction intermediates of ketoprofen were detected by LC-MS/MS and degradation routes were proposed.
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Affiliation(s)
- Guanghui Xu
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ming Li
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yang Wang
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Na Zheng
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Li Yang
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Hongwen Yu
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Yong Yu
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China.
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42
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Ge J, Zhang Y, Park SJ. Recent Advances in Carbonaceous Photocatalysts with Enhanced Photocatalytic Performances: A Mini Review. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E1916. [PMID: 31200594 PMCID: PMC6631926 DOI: 10.3390/ma12121916] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 05/31/2019] [Accepted: 06/11/2019] [Indexed: 12/25/2022]
Abstract
Photocatalytic processes based on various semiconductors have been widely utilized in different applications, with great potential for use in environmental pollution remediation and sustainable energy generation. However, critical issues, including low light adsorption capability, wide energy bandgap, and unsatisfactory physicochemical stability still seriously limit the practical applications of photocatalysts. As a solution, the introduction of carbonaceous materials with different structures and properties into a photocatalyst system to further increase the activity has attracted much research attention. This mini review surveys the related literatures and highlights recent progress in the development of carbonaceous photocatalysts, which include various metal semiconductors with activated carbon, carbon dots, carbon nanotubes/nanofibers, graphene, fullerene, and carbon sponges/aerogels. Moreover, graphitic carbon nitride is also discussed as a carbon-rich and metal-free photocatalyst. The recently developed synthesis strategies and proposed mechanisms underlying the photocatalytic activity enhancement for different applications are summarized and discussed. Finally, ongoing challenges and the developmental direction for carbonaceous photocatalysts are proposed.
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Affiliation(s)
- Jianlong Ge
- Department of Chemistry and Chemical Engineering, Inha University, 100 Inharo, Incheon 22212, Korea.
| | - Yifan Zhang
- Department of Chemistry and Chemical Engineering, Inha University, 100 Inharo, Incheon 22212, Korea.
| | - Soo-Jin Park
- Department of Chemistry and Chemical Engineering, Inha University, 100 Inharo, Incheon 22212, Korea.
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43
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Wang L, Yuan Z, Karahan HE, Wang Y, Sui X, Liu F, Chen Y. Nanocarbon materials in water disinfection: state-of-the-art and future directions. NANOSCALE 2019; 11:9819-9839. [PMID: 31080989 DOI: 10.1039/c9nr02007a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Water disinfection practices are critical for supplying safe drinking water. Existing water disinfection methods come with various drawbacks, calling for alternative or complementary solutions. Nanocarbon materials (NCMs) offer unique advantages for water disinfection owing to their high antimicrobial activity, often low environmental/human toxicity, and tunable physicochemical properties. Nevertheless, it is a challenge to assess the research progress made so far due to the structure and property diversity in NCMs as well as their different targeted applications. Because of these, here we provide a broad outline of this emerging field in three parts. First, we introduce the antimicrobial activities of the different types of NCMs, including fullerenes, nanodiamonds, carbon (nano)dots, carbon nanotubes, and graphene-family materials. Next, we discuss the current status in applying these NCMs for different water disinfection problems, especially as hydrogel filters, filtration membranes, recyclable aggregates, and electrochemical devices. We also introduce the use of NCMs in photocatalysts for photocatalytic water disinfection. Lastly, we put forward the key hurdles of the field that hamper the realization of the practical applications and propose possible directions for future investigations to address those. We hope that this minireview will encourage researchers to tackle these challenges and innovate NCM-based water disinfection platforms in the near future.
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Affiliation(s)
- Liang Wang
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, China.
| | - Ziwen Yuan
- The University of Sydney, School of Chemical and Biomolecular Engineering, NSW, 2006, Australia.
| | - H Enis Karahan
- Nanyang Technological University, School of Chemical and Biomedical Engineering, 62 Nanyang Drive, 637459, Singapore
| | - Yilei Wang
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, China.
| | - Xiao Sui
- The University of Sydney, School of Chemical and Biomolecular Engineering, NSW, 2006, Australia.
| | - Fei Liu
- The University of Sydney, School of Chemical and Biomolecular Engineering, NSW, 2006, Australia. and State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Institute of Microbiology, 100 Central Xianlie Road, Guangzhou 510070, China
| | - Yuan Chen
- The University of Sydney, School of Chemical and Biomolecular Engineering, NSW, 2006, Australia.
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44
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Kanjwal MA, Lo KKS, Leung WWF. Graphene composite nanofibers as a high-performance photocatalyst for environmental remediation. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.01.044] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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45
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Rabin NN, Ohmagari H, Islam MS, Karim MR, Hayami S. A procession on photocatalyst for solar fuel production and waste treatment. J INCL PHENOM MACRO 2019. [DOI: 10.1007/s10847-019-00889-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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46
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Şen B, Aygün A, Şavk A, Duman S, Calimli MH, Bulut E, Şen F. Polymer-graphene hybrid stabilized ruthenium nanocatalysts for the dimethylamine-borane dehydrogenation at ambient conditions. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.02.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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47
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Photocatalytic Hydrogen Production: Role of Sacrificial Reagents on the Activity of Oxide, Carbon, and Sulfide Catalysts. Catalysts 2019. [DOI: 10.3390/catal9030276] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Photocatalytic water splitting is a sustainable technology for the production of clean fuel in terms of hydrogen (H2). In the present study, hydrogen (H2) production efficiency of three promising photocatalysts (titania (TiO2-P25), graphitic carbon nitride (g-C3N4), and cadmium sulfide (CdS)) was evaluated in detail using various sacrificial agents. The effect of most commonly used sacrificial agents in the recent years, such as methanol, ethanol, isopropanol, ethylene glycol, glycerol, lactic acid, glucose, sodium sulfide, sodium sulfite, sodium sulfide/sodium sulfite mixture, and triethanolamine, were evaluated on TiO2-P25, g-C3N4, and CdS. H2 production experiments were carried out under simulated solar light irradiation in an immersion type photo-reactor. All the experiments were performed without any noble metal co-catalyst. Moreover, photolysis experiments were executed to study the H2 generation in the absence of a catalyst. The results were discussed specifically in terms of chemical reactions, pH of the reaction medium, hydroxyl groups, alpha hydrogen, and carbon chain length of sacrificial agents. The results revealed that glucose and glycerol are the most suitable sacrificial agents for an oxide photocatalyst. Triethanolamine is the ideal sacrificial agent for carbon and sulfide photocatalyst. A remarkable amount of H2 was produced from the photolysis of sodium sulfide and sodium sulfide/sodium sulfite mixture without any photocatalyst. The findings of this study would be highly beneficial for the selection of sacrificial agents for a particular photocatalyst.
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48
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Mubeen M, Deshmukh K, Peshwe DR, Dhoble SJ, Deshmukh AD. Alteration of the electronic structure and the optical properties of graphitic carbon nitride by metal ion doping. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 207:301-306. [PMID: 30265945 DOI: 10.1016/j.saa.2018.09.039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 09/09/2018] [Accepted: 09/20/2018] [Indexed: 06/08/2023]
Abstract
The photoluminescence quenching of graphitic carbon nitride (GCN) was systematically investigated with the doping of transition metal ions. The photoluminescence spectra of metal doped and pristine GCN were monitored and the trend of quenching efficiency was found to be Cu2+ > Co2+ > Mn2+. Interestingly, with the increasing doping concentration of different metal ions simultaneous red shift and luminescence quenching was determined in the photoluminescence spectra as well as increased absorption tail in longer wavelength hence enhancement in the bandgap. The change in the optical properties could be mainly due to structural reconstruction and doping induced electronic redistribution is discussed.
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Affiliation(s)
- Mohammad Mubeen
- Energy Materials and Devices Laboratory, Department of Physics, RTM Nagpur University, Nagpur, M.H. 440033, India
| | - Kavita Deshmukh
- Department of MME, Visvesvarya National Institute of Technology, Nagpur, M.H. 440033, India
| | - D R Peshwe
- Department of MME, Visvesvarya National Institute of Technology, Nagpur, M.H. 440033, India
| | - S J Dhoble
- Energy Materials and Devices Laboratory, Department of Physics, RTM Nagpur University, Nagpur, M.H. 440033, India.
| | - Abhay D Deshmukh
- Energy Materials and Devices Laboratory, Department of Physics, RTM Nagpur University, Nagpur, M.H. 440033, India.
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49
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Marques Mota F, Kim DH. From CO2methanation to ambitious long-chain hydrocarbons: alternative fuels paving the path to sustainability. Chem Soc Rev 2019; 48:205-259. [DOI: 10.1039/c8cs00527c] [Citation(s) in RCA: 147] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Comprehensive insight into the thermochemical, photochemical and electrochemical reduction of CO2to methane and long-chain hydrocarbons as alternative fuels.
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Affiliation(s)
- Filipe Marques Mota
- Department of Chemistry and Nano Science
- Ewha Womans University
- Seoul 03760
- Korea
| | - Dong Ha Kim
- Department of Chemistry and Nano Science
- Ewha Womans University
- Seoul 03760
- Korea
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50
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Pawar RC, Kang S, Han H, Choi H, Lee CS. In situ reduction and exfoliation of g-C3N4 nanosheets with copious active sites via a thermal approach for effective water splitting. Catal Sci Technol 2019. [DOI: 10.1039/c8cy02318b] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Poor optical absorbance and charge recombination are the major drawbacks of polymeric graphitic carbon nitride (g-C3N4)-based photocatalysts.
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Affiliation(s)
- Rajendra C. Pawar
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Suhee Kang
- Department of Materials and Chemical Engineering
- Hanyang University
- South Korea
| | - Hyuksu Han
- Korean Institute of Industrial Technology (KITECH)
- Republic of Korea
| | - Heechae Choi
- Institute of Inorganic Chemistry
- University of Cologne
- Cologne
- Germany
- Materials Data Corp
| | - Caroline S. Lee
- Department of Materials and Chemical Engineering
- Hanyang University
- South Korea
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