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Sayed MS, Aman D, Fayed MG, Omran MM, Zaki T, Mohamed SG. Unravelling the role of pore structure of biomass-derived porous carbon in charge storage mechanisms for supercapacitors. RSC Adv 2024; 14:24631-24642. [PMID: 39114437 PMCID: PMC11304186 DOI: 10.1039/d4ra04681a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2024] [Accepted: 07/26/2024] [Indexed: 08/10/2024] Open
Abstract
This study presents findings on the production and analysis of activated carbon (AC), which exhibits a significantly expansive surface area derived from readily available and inexpensive agroforestry waste, specifically coconut shells. The carbon materials displayed encouraging features for electrochemical energy storage applications with a high specific surface area (2920 m2 g-1), an ordered mesoporous structure (∼2.5 nm), and substantial electronic conductivity. By altering the surface properties of AC materials, they exhibited different energy storage responses while using an ionic liquid as an electrolyte. Electrodes composed of AC sourced from coconut shells demonstrated notably high specific capacitance (78 F g-1) and retained capacitance when assessed within symmetric electrical double-layer capacitors (EDLCs) employing organic electrolytes. Interestingly, the AC cell in an organic electrolyte delivered a specific energy (Es) of 67 W h kg-1 at a specific power (Ps) of 1237 W kg-1 at the current density of 1 A g-1 and still provided Es of 64, 60, 58, 57, and 52 W h kg-1 at Ps of 2477, 3724, 4971, 6218 and 12 480 W kg-1 at the current density of 2, 3, 4, 5 and 10 A g-1. This work demonstrates the effect of different pore volumes on the electrocatalytic activity of AC derived from natural product waste. Our results indicate the feasibility of employing these electrodes for lab-scale applications. Thus, the AC material emerges as a highly promising substance, poised to advance the creation of cost-efficient, environmentally sustainable, high-performance, high-power devices.
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Affiliation(s)
- Mostafa S Sayed
- Analysis and Evaluation Department, Egyptian Petroleum Research Institute Nasr City Cairo 11727 Egypt
- Central Analytical Laboratories, Egyptian Petroleum Research Institute Nasr City, PO Box 11727 Cairo Egypt
| | - Delvin Aman
- Central Analytical Laboratories, Egyptian Petroleum Research Institute Nasr City, PO Box 11727 Cairo Egypt
- Catalysis Laboratory, Refining Department, Egyptian Petroleum Research Institute (EPRI) Nasr City 11727 Cairo Egypt
| | - Moataz G Fayed
- Mining and Metallurgy Engineering Department, Tabbin Institute for Metallurgical Studies (TIMS) Tabbin, Helwan 109 Cairo 11421 Egypt
| | - Mostafa M Omran
- Chemistry Department, Faculty of Science, Cairo University Giza 12613 Egypt
| | - Tamer Zaki
- Central Analytical Laboratories, Egyptian Petroleum Research Institute Nasr City, PO Box 11727 Cairo Egypt
- Catalysis Laboratory, Refining Department, Egyptian Petroleum Research Institute (EPRI) Nasr City 11727 Cairo Egypt
| | - Saad G Mohamed
- Mining and Metallurgy Engineering Department, Tabbin Institute for Metallurgical Studies (TIMS) Tabbin, Helwan 109 Cairo 11421 Egypt
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2
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Liu Y, Zhuge X, Liu T, Luo Z, Luo K, Li Y, Ren Y, Bayati M, Liu X. Cold-plasma activation converting conductive agent in spent Li-ion batteries to bifunctional oxygen reduction/evolution electrocatalyst for zinc-air batteries. J Colloid Interface Sci 2024; 665:793-800. [PMID: 38554469 DOI: 10.1016/j.jcis.2024.03.169] [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: 12/01/2023] [Revised: 03/04/2024] [Accepted: 03/25/2024] [Indexed: 04/01/2024]
Abstract
Considerable amount of high-value transition metals components can be recycled in spent ternary lithium-ion batteries. In this study, we utilized the conductive agent carbon black, obtained from the leaching waste resulting from the chemical recovery of spent lithium-nickel-manganese-cobalt (NCM) oxide cathode materials. This process allows us to create valuable bifunctional catalysts for the oxygen reduction reaction and oxygen evolution reaction (ORR/OER), facilitated by a facile cold plasma activation method, as a part of lithium batteries circular economy. The activated conductive agent (RCA-30) exhibited an ORR half-wave potential of 0.74 V (vs. RHE) in 0.1 mol/L KOH solution, and an OER overpotential of 360 mV at 10 mA cm-2 in 1 mol/L KOH electrolyte, owing to nitrogen doping of carbon black and activation of surface metal oxides. The complete zinc-air batteries incorporating the activated catalysts at the cathode exhibited an open circuit potential of up to 1.48 V and sustained cycling for 100 h at a current density of 5 mA cm-2. Additionally, the activated catalysts contributed to a power density of 92 mW cm-2 and a full discharge capacity of 640 mAh/g.
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Affiliation(s)
- Yifan Liu
- Jiangsu Province Engineering Research Centre of Intelligent Manufacturing Technology for the New Energy Vehicle Power Battery, School of Materials Science and Engineering, Changzhou University, Changzhou 213164, PR China
| | - Xiangqun Zhuge
- Jiangsu Province Engineering Research Centre of Intelligent Manufacturing Technology for the New Energy Vehicle Power Battery, School of Materials Science and Engineering, Changzhou University, Changzhou 213164, PR China
| | - Tong Liu
- Jiangsu Province Engineering Research Centre of Intelligent Manufacturing Technology for the New Energy Vehicle Power Battery, School of Materials Science and Engineering, Changzhou University, Changzhou 213164, PR China
| | - Zhihong Luo
- College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, PR China
| | - Kun Luo
- Jiangsu Province Engineering Research Centre of Intelligent Manufacturing Technology for the New Energy Vehicle Power Battery, School of Materials Science and Engineering, Changzhou University, Changzhou 213164, PR China.
| | - Yibing Li
- College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, PR China.
| | - Yurong Ren
- Jiangsu Province Engineering Research Centre of Intelligent Manufacturing Technology for the New Energy Vehicle Power Battery, School of Materials Science and Engineering, Changzhou University, Changzhou 213164, PR China
| | - Maryam Bayati
- Department of Mechanical and Construction Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne NE1 8QH, UK
| | - Xiaoteng Liu
- Jiangsu Province Engineering Research Centre of Intelligent Manufacturing Technology for the New Energy Vehicle Power Battery, School of Materials Science and Engineering, Changzhou University, Changzhou 213164, PR China; Department of Mechanical and Construction Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne NE1 8QH, UK.
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3
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Ishaq S, Nadim AH, Amer SM, Elbalkiny HT. Optimization of graphene polypyrrole for enhanced adsorption of moxifloxacin antibiotic: an experimental design approach and isotherm investigation. BMC Chem 2024; 18:113. [PMID: 38872197 DOI: 10.1186/s13065-024-01208-0] [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: 01/14/2024] [Accepted: 05/14/2024] [Indexed: 06/15/2024] Open
Abstract
The presence of antibiotics in water systems had raised a concern about their potential harm to the aquatic environment and human health as well as the possible development of antibiotic resistance. Herein, this study investigates the power of adsorption using graphene-polypyrrole (GRP-PPY) nanoparticles as a promising approach for the removal of Moxifloxacin HCl (MXF) as a model antibiotic drug. GRP-PPY nanoparticles synthesis was performed with a simple and profitable method, leading to the formation of high surface area particles with excellent adsorption properties. Characterization was assessed with various techniques, including Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD) and Brunauer-Emmett-Teller (BET). Box-Behnken experimental design was developed to optimize the adsorption process. Critical parameters such as initial antibiotic concentration, nanoparticle concentration, and pH were investigated. The Freundlich isotherm model provided a good fit to the experimental data, indicating multilayer adsorption of MXF onto the GRP-PPY-NP. As a result, a high adsorption capacity of MXF (92%) was obtained in an optimum condition of preparing 30 μg/mL of the drug to be adsorbed by 1 mg/mL of GRP-PPY-NP in pH 9 within 1 h in a room temperature. Moreover, the regeneration and reusability of GRP-PPY-NP were investigated. They could be effectively regenerated for 3 cycles using appropriate desorption agents without significant loss in adsorption capacity. Overall, this study highlights the power of GRP-PPY-NP as a highly efficient adsorbent for the removal of MXF from wastewater as it is the first time to use this NP for a pharmaceutical product which shows the study's novelty, and the findings provide valuable insights into the development of sustainable and effective wastewater treatment technologies for combating antibiotic contamination in aquatic environments.
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Affiliation(s)
- Sara Ishaq
- Analytical Chemistry Department, Faculty of Pharmacy, MSA University: October University for Modern Sciences and Arts, Cairo, Egypt.
| | - Ahmed H Nadim
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Sawsan M Amer
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Heba T Elbalkiny
- Analytical Chemistry Department, Faculty of Pharmacy, MSA University: October University for Modern Sciences and Arts, Cairo, Egypt
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4
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Hemmatzadeh E, Bahram M, Dadashi R. Photochemical modification of tea waste by tungsten oxide nanoparticle as a novel, low-cost and green photocatalyst for degradation of dye pollutant. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 313:124104. [PMID: 38493511 DOI: 10.1016/j.saa.2024.124104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 02/26/2024] [Accepted: 03/01/2024] [Indexed: 03/19/2024]
Abstract
So far, many adsorbents and nanocomposites have been synthesized by different methods and used to remove or degradation of dye pollutants. Nowadays, the use of natural adsorbents and their modification with simple methods based on metal oxides are of interest to many researchers. In this study, for the first time, we report the simple and low-cost modification of tea pomace waste (TPW) with tungsten oxide (WO3) based on the photochemical method as a green, cost-effective, and biodegradable photocatalyst for the degradation of Rh B dye pollutant. The results obtained from FE-SEM, EDAX, XRD, XPS, PL, BET and UV-Vis Diffusive Reflectance (DRS) analyses confirmed the successful modification of the TPW surface with WO3 (WO3/TPW). The parameters affecting the photocatalytic behavior of WO3/TPW, including the time of photochemical modification and the type of radiation on its photocatalytic activity, were carefully optimized. WO3/TPW showed excellent photocatalytic activity compared to TPW for the degradation of Rh B dye pollutant under UV light for 30 min (94 %). Finally, the effective parameters on the value of Rh B dye degradation by WO3/TPW photocatalyst including pH, adsorbent dosage, the concentration of dye pollutant, and the kinetics of the degradation process were studied. It is expected that this type of photochemical modification method and natural WO3/TPW photocatalyst will be a promising path for the synthesis, modification, and increase of the photocatalytic performance of natural adsorbents.
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Affiliation(s)
- Ehsan Hemmatzadeh
- Department of Analytical Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran
| | - Morteza Bahram
- Department of Analytical Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran.
| | - Reza Dadashi
- Department of Analytical Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran
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5
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Lee CH, Jung JK, Kim KS, Kim CJ. Hierarchical channel morphology in O-rings after two cycling exposures to 70 MPa hydrogen gas: a case study of sealing failure. Sci Rep 2024; 14:5319. [PMID: 38438433 PMCID: PMC10912206 DOI: 10.1038/s41598-024-55101-w] [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: 08/17/2023] [Accepted: 02/20/2024] [Indexed: 03/06/2024] Open
Abstract
This study investigates the impact of high-pressure hydrogen gas exposure on the structural and morphological characteristics of O-ring materials. O-ring specimens undergo two cycles of sealing under 70 MPa hydrogen gas, and their resulting variations are examined using advanced characterization techniques, including powder X-ray diffraction (PXRD), small-angle X-ray scattering (SAXS), scanning electron microscopy (SEM) and atomic force microscopy (AFM). Our findings reveal that the lattice parameters of the O-ring material show no significant changes when exposed to 70 MPa hydrogen gas. However, in the micrometre range, the formation of a hierarchical channel morphology becomes evident. This morphology is accompanied by the separation of carbon black filler from the rubber matrix, contributing to mechanical weakening of the O-ring. These observations can be attributed to the pressure gradient that develops between the inner and outer radii of the O-ring, resulting from compression forces acting perpendicularly to the radial direction due to clamp locking.
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Affiliation(s)
- Chang Hoon Lee
- Department of Biochemical Engineering, Chosun University, Chosundae-5-gil, Dong-gu, Gwangju, 61452, Republic of Korea
| | - Jae Kap Jung
- Hydrogen Energy Materials Research Team, Korea Research Institute of Standards and Science, Daejeon, 34113, Republic of Korea.
| | - Kyung Sook Kim
- Department of Biomedical Engineering, College of Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Chang Jong Kim
- LG Chem Europe GmbH, Adolph-Prior-Straße 16, 65936, Frankfurt am Main, Germany
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6
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Liu YF, Zhang T, Zhang HH, Huang TT, Wang K, Song YX, Liang JF, Zhang YG, Fan W, Zhong XB. Macroscale preparation of CoS 2 nanoparticles for ultra-high fast-charging performance in sodium-ion batteries. Dalton Trans 2024; 53:3573-3578. [PMID: 38284885 DOI: 10.1039/d3dt03675h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
Improving the fast-charging capabilities and energy storage capacity of electric vehicles presents a feasible strategy for mitigating the prevalent concern of range anxiety in the market. Nanostructure electrode materials play a crucial role in this process. However, the current method of preparation is arduous and yields restricted quantities. In view of this, we have devised an innovative approach that provides convenience and efficacy, facilitating the large-scale synthesis of CoS2 nanoparticles, which exhibited exceptional performance. When the current density was 1000 mA g-1, the discharging capacity reached 760 mAh g-1 after 400 cycles. Remarkably, even at an increased current density of 5000 mA g-1, the discharging capacity of CoS2 remained at 685.5 mAh g-1. The ultra-high performance could be attributed to the specific surface area, which minimized the diffusion distance of sodium-ions during the charging and discharging processes and mitigated the extent of structural damage. Our straightforward preparation techniques facilitate the mass production and present a novel approach for the development of cost-effective and high-performing anode materials for sodium-ion batteries.
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Affiliation(s)
- Yan-Fen Liu
- School of Energy and Power Engineering, School of Mechanical and Electrical Engineering, North University of China, Taiyuan 030051, Shanxi, P. R. China.
| | - Tian Zhang
- School of Energy and Power Engineering, School of Mechanical and Electrical Engineering, North University of China, Taiyuan 030051, Shanxi, P. R. China.
| | - Huan-Huan Zhang
- School of Energy and Power Engineering, School of Mechanical and Electrical Engineering, North University of China, Taiyuan 030051, Shanxi, P. R. China.
| | - Ting-Ting Huang
- School of Energy and Power Engineering, School of Mechanical and Electrical Engineering, North University of China, Taiyuan 030051, Shanxi, P. R. China.
| | - Kai Wang
- School of Energy and Power Engineering, School of Mechanical and Electrical Engineering, North University of China, Taiyuan 030051, Shanxi, P. R. China.
| | - Yue-Xian Song
- School of Energy and Power Engineering, School of Mechanical and Electrical Engineering, North University of China, Taiyuan 030051, Shanxi, P. R. China.
| | - Jun-Fei Liang
- School of Energy and Power Engineering, School of Mechanical and Electrical Engineering, North University of China, Taiyuan 030051, Shanxi, P. R. China.
| | - Yan-Gang Zhang
- School of Energy and Power Engineering, School of Mechanical and Electrical Engineering, North University of China, Taiyuan 030051, Shanxi, P. R. China.
| | - Wei Fan
- School of Energy and Power Engineering, School of Mechanical and Electrical Engineering, North University of China, Taiyuan 030051, Shanxi, P. R. China.
| | - Xiao-Bin Zhong
- School of Energy and Power Engineering, School of Mechanical and Electrical Engineering, North University of China, Taiyuan 030051, Shanxi, P. R. China.
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7
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Wang Y, Wang K, Wang X, Zhao Q, Jiang J, Jiang M. Effect of different production methods on physicochemical properties and adsorption capacities of biochar from sewage sludge and kitchen waste: Mechanism and correlation analysis. JOURNAL OF HAZARDOUS MATERIALS 2024; 461:132690. [PMID: 37801977 DOI: 10.1016/j.jhazmat.2023.132690] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 09/25/2023] [Accepted: 09/30/2023] [Indexed: 10/08/2023]
Abstract
Different pyrolysis methods, parameters and feedstocks result in biochars with different properties, structures and removal capacities for heavy metals. However, the role of each property on adsorption capacity and corresponding causal relationships remain unclear. Here, we investigated various physicochemical properties of biochar produced via three different methods and two different feedstocks to clarify influences of biomass sources and pyrolysis processes on biochar properties and its heavy metal adsorption performance. Experimental results showed biochars were more aromatic and contained more functional groups after hydrothermal carbonization, while they had developed pores and higher surface areas produced by anaerobic pyrolysis. The inclusion of oxygen resulted in more complete carbonization and higher CEC biochar. Different biochar properties resulted in different adsorption capacities. Biochar produced by aerobic calcination showed higher adsorption efficiency for Cu and Pb. Correlation analysis proved that pH, cation exchange capacity and degree of carbonization positively affected adsorption, while organic matter content and aromaticity were unfavorable for adsorption. Microstructure and components determined biochar macroscopic properties and ultimate adsorption efficiency for metal ions. This study identifies the degree of correlation and pathways of each property on adsorption, which provides guidance for targeted modification of biochar to enhance its performance in heavy metal removal.
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Affiliation(s)
- Yipeng Wang
- State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Kun Wang
- State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Xuchan Wang
- State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Qingliang Zhao
- State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
| | - Junqiu Jiang
- State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Miao Jiang
- State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
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8
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Fdez-Sanromán A, Pazos M, Sanromán MA, Rosales E. Heterogeneous electro-Fenton system using Fe-MOF as catalyst and electrocatalyst for degradation of pharmaceuticals. CHEMOSPHERE 2023; 340:139942. [PMID: 37634590 DOI: 10.1016/j.chemosphere.2023.139942] [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: 06/01/2023] [Revised: 08/07/2023] [Accepted: 08/22/2023] [Indexed: 08/29/2023]
Abstract
In recent years, heterogeneous electro-Fenton processes have gained considerable attention as an alternative to homogeneous processes. In this context, the aim of this study is the use of a commercial iron metal-organic framework (Fe-MOF), Basolite® F-300, as a base material for the design of a heterogeneous electro-Fenton treatment system for the removal of antipyrine. Initially, the catalyst was applied as powder in aqueous solution and three key parameters of the electro-Fenton process (pH, Fe-MOF concentration and current density) were evaluated and optimized by a Central Composite Design Face Centred (CCD-FC) using antipyrine removal and energy consumption as response functions. Near complete antipyrine removal (94%) was achieved under optimal conditions: pH 3, Fe-MOF 157.78 mg/L and current density 6.67 mA/cm2, obtaining an energy consumption of 0.29 W·h per mg of antipyrine removed. Later, two electrocatalysts (Fe-MOF functionalized cathodes), prepared by different Fe-MOF immobilisation approaches (composite of carbon black/polytetrafluoroethylene or by electrospinning on Ni foam), were synthesized. Their characterisation showed notable Fe-MOF incorporation into the material and favourable properties as electrocatalysts. Both Fe-MOF functionalized cathodes were evaluated in the removal of antipyrine at different pH (acidic and natural) and current density (27.78 and 55.56 mA/cm2), achieving in the best conditions removal levels around 80% in 1 h without any operational problems. In addition, several intermediates generated during the treatment were identified and their toxicity estimated. According to the obtained results, the degradation compounds have less toxicity than the parent compounds, confirming the effectiveness of the treatment.
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Affiliation(s)
- Antía Fdez-Sanromán
- CINTECX, Universidade de Vigo, Grupo de Bioingeniería y Procesos Sostenibles, Departamento de Ingeniería Química, Campus Lagoas-Marcosende, 36310, Vigo, Spain.
| | - Marta Pazos
- CINTECX, Universidade de Vigo, Grupo de Bioingeniería y Procesos Sostenibles, Departamento de Ingeniería Química, Campus Lagoas-Marcosende, 36310, Vigo, Spain.
| | - M Angeles Sanromán
- CINTECX, Universidade de Vigo, Grupo de Bioingeniería y Procesos Sostenibles, Departamento de Ingeniería Química, Campus Lagoas-Marcosende, 36310, Vigo, Spain.
| | - Emilio Rosales
- CINTECX, Universidade de Vigo, Grupo de Bioingeniería y Procesos Sostenibles, Departamento de Ingeniería Química, Campus Lagoas-Marcosende, 36310, Vigo, Spain.
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9
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Muthusamy L, Uppalapati B, Azad S, Bava M, Koley G. Self-Polarized P(VDF-TrFE)/Carbon Black Composite Piezoelectric Thin Film. Polymers (Basel) 2023; 15:4131. [PMID: 37896374 PMCID: PMC10610547 DOI: 10.3390/polym15204131] [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: 09/11/2023] [Revised: 10/16/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
Self-polarized energy harvesting materials have seen increasing research interest in recent years owing to their simple fabrication method and versatile application potential. In this study, we systematically investigated self-polarized P(VDF-TrFE)/carbon black (CB) composite thin films synthesized on flexible substrates, with the CB content varying from 0 to 0.6 wt.% in P(VDF-TrFE). The presence of -OH functional groups on carbon black significantly enhances its crystallinity, dipolar orientation, and piezoelectric performance. Multiple characterization techniques were used to investigate the crystalline quality, chemical structure, and morphology of the composite P(VDF-TrFE)/CB films, which indicated no significant changes in these parameters. However, some increase in surface roughness was observed when the CB content increased. With the application of an external force, the piezoelectrically generated voltage was found to systematically increase with higher CB content, reaching a maximum value at 0.6 wt.%, after which the sample exhibited low resistance. The piezoelectric voltage produced by the unpoled 0.6 wt.% CB composite film significantly exceeded the unpoled pure P(VDF-TrFE) film when subjected to the same applied strain. Furthermore, it exhibited exceptional stability in the piezoelectric voltage over time, exceeding the output voltage of the poled pure P(VDF-TrFE) film. Notably, P(VDF_TrFE)/CB composite-based devices can be used in energy harvesting and piezoelectric strain sensing to monitor human motions, which has the potential to positively impact the field of smart wearable devices.
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Affiliation(s)
- Lavanya Muthusamy
- Holcombe Department of Electrical and Computer Engineering, Clemson University, Clemson, SC 29634, USA; (B.U.); (S.A.); (G.K.)
| | - Balaadithya Uppalapati
- Holcombe Department of Electrical and Computer Engineering, Clemson University, Clemson, SC 29634, USA; (B.U.); (S.A.); (G.K.)
| | - Samee Azad
- Holcombe Department of Electrical and Computer Engineering, Clemson University, Clemson, SC 29634, USA; (B.U.); (S.A.); (G.K.)
| | - Manav Bava
- Department of Physics and Astronomy, Clemson University, Clemson, SC 29634, USA;
| | - Goutam Koley
- Holcombe Department of Electrical and Computer Engineering, Clemson University, Clemson, SC 29634, USA; (B.U.); (S.A.); (G.K.)
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10
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Venkatraman Y, Arunkumar P, Kumar NS, Osman AI, Muthiah M, Al-Fatesh AS, Koduru JR. Exploring Modified Rice Straw Biochar as a Sustainable Solution for Simultaneous Cr(VI) and Pb(II) Removal from Wastewater: Characterization, Mechanism Insights, and Application Feasibility. ACS OMEGA 2023; 8:38130-38147. [PMID: 37867658 PMCID: PMC10586276 DOI: 10.1021/acsomega.3c04271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 09/12/2023] [Indexed: 10/24/2023]
Abstract
This study aimed to investigate the efficacy of a rice straw biosorbent in batch adsorption for the removal of chromium (Cr(VI)) and lead (Pb(II)) heavy-metal ions from wastewater. The biosorbent was chemically synthesized and activated by using concentrated sulfuric acid. The produced biosorbent was then characterized by using Fourier transform infrared (FTIR), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and X-ray diffraction (XRD) analyses, which provided insights into surface morphology and functional groups. The study examined the effects of pH, rice straw dose, ion concentration, and contact time on metal ion adsorption. Optimal conditions for efficient removal (95.57% for Cr(VI) and 85.68% for Pb(II)) were achieved at a pH of 2.0, a biosorbent dose of 2 g/L, an initial concentration of 20 mg/L, and a contact time of 50 min in synthetic solutions. The isotherms and kinetics model fitting results found that both metal ion adsorption processes were multilayer on the hetero surface of rice straw biosorbent via rate diffusion kinetics. Thermodynamic investigations were conducted, and the results strongly indicate that the adsorption process is endothermic and spontaneous. Notably, the results indicated that the highest desorption rate was achieved by adding 0.3 N HCl to the system.
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Affiliation(s)
- Yogeshwaran Venkatraman
- Department
of Civil Engineering, Sri Krishna College
of Engineering and Technology, Coimbatore 641008, India
| | - Priya Arunkumar
- Department
of Chemical Engineering, KPR Institute of
Engineering and Technology, Coimbatore 641047, India
- Project
Prioritization, Monitoring & Evaluation and Knowledge Management
Unit, ICAR Indian Institute of Soil &
Water Conservation (ICAR-IISWC), Dehradun 248195, India
| | - Nadavala Siva Kumar
- Department
of Chemical Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
| | - Ahmed I. Osman
- School
of Chemistry and Chemical Engineering, Queen’s
University Belfast, Belfast BT9 5AG, Northern Ireland U.K.
| | - Muruganandam Muthiah
- Project
Prioritization, Monitoring & Evaluation and Knowledge Management
Unit, ICAR Indian Institute of Soil &
Water Conservation (ICAR-IISWC), Dehradun 248195, India
| | - Ahmed S. Al-Fatesh
- Department
of Chemical Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
| | - Janardhan Reddy Koduru
- Department
of Environmental Engineering, Kwangwoon
University, Seoul 01897, Republic of Korea
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11
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Ahmed HR, Hama Aziz KH, Agha NNM, Mustafa FS, Hinder SJ. Iron-loaded carbon black prepared via chemical vapor deposition as an efficient peroxydisulfate activator for the removal of rhodamine B from water. RSC Adv 2023; 13:26252-26266. [PMID: 37670993 PMCID: PMC10475974 DOI: 10.1039/d3ra04566h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 08/28/2023] [Indexed: 09/07/2023] Open
Abstract
The excessive use of organic pollutants like organic dyes, which enter the water environment, has led to a significant environmental problem. Finding an efficient method to degrade these pollutants is urgent due to their detrimental effects on aquatic organisms and human health. Carbon-based catalysts are emerging as highly promising and efficient alternatives to metal catalysts in Fenton-like systems. They serve as persulfate activators, effectively eliminating recalcitrant organic pollutants from wastewater. In this study, iron-loaded carbon black (Fe-CB) was synthesized from tire waste using chemical vapor deposition (CVD). Fe-CB exhibited high efficiency as an activator of peroxydisulfate (PDS), facilitating the effective degradation and mineralization of rhodamine B (RhB) in water. A batch experiment and series characterization were conducted to study the morphology, composition, stability, and catalytic activity of Fe-CB in a Fenton-like system. The results showed that, at circumneutral pH, the degradation and mineralization efficiency of 20 mg L-1 RhB reached 92% and 48% respectively within 60 minutes. Fe-CB exhibited excellent reusability and low metal leaching over five cycles while maintaining almost the same efficiency. The degradation kinetics of RhB was found to follow a pseudo-first-order model. Scavenging tests revealed that the dominant role was played by sulfate (SO4-˙) and superoxide (O2-˙) radicals, whereas hydroxyl radicals (OH˙) and singlet oxygen (1O2) played a minor role in the degradation process. This study elucidates the detailed mechanism of PDS activation by Fe-CB, resulting in the generation of reactive oxygen species. It highlights the effectiveness of Fe-CB/PDS in a Fenton-like system for the treatment of water polluted with organic dye contaminants. The research provides valuable insights into the potential application of carbon black derived from tire waste for environmental remediation.
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Affiliation(s)
- Harez R Ahmed
- Department of Chemistry, College of Science, University of Sulaimani Qlyasan Street Sulaimani City 46001 Kurdistan Region Iraq
- College of Science, Department of Medical Laboratory Science, Komar University of Science and Technology Sulaimani 46001 Iraq
| | - Kosar Hikmat Hama Aziz
- Department of Chemistry, College of Science, University of Sulaimani Qlyasan Street Sulaimani City 46001 Kurdistan Region Iraq
- Department of Medical Laboratory of Science, College of Health Sciences, University of Human Development Sulaimaniyah Iraq
| | - Nian N M Agha
- Department of Chemistry, College of Science, University of Sulaimani Qlyasan Street Sulaimani City 46001 Kurdistan Region Iraq
- College of Science, Department of Medical Laboratory Science, Komar University of Science and Technology Sulaimani 46001 Iraq
| | - Fryad S Mustafa
- Department of Chemistry, College of Science, University of Sulaimani Qlyasan Street Sulaimani City 46001 Kurdistan Region Iraq
| | - Steven John Hinder
- Department of Mechanical Engineering Sciences, Faculty of Engineering and Physical Sciences, University of Surrey Guildford Surrey GU2 7XH UK
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12
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Giannakopoulou T, Todorova N, Plakantonaki N, Vagenas M, Sakellis E, Papargyriou D, Katsiotis M, Trapalis C. CO 2-Derived Nanocarbons with Controlled Morphology and High Specific Capacitance. ACS OMEGA 2023; 8:29500-29511. [PMID: 37599958 PMCID: PMC10433508 DOI: 10.1021/acsomega.3c03207] [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: 05/09/2023] [Accepted: 07/07/2023] [Indexed: 08/22/2023]
Abstract
The conversion of CO2 to nanocarbons addresses a dual goal of harmful CO2 elimination from the atmosphere along with the production of valuable nanocarbon materials. In the present study, a simple one-step metallothermic CO2 reduction to nanocarbons was performed at 675 °C with the usage of a Mg reductant. The latter was employed alone and in its mixture with ferrocene, which was found to control the morphology of the produced nanocarbons. Scanning electron microscopy (SEM) analysis reveals a gradual increase in the amount of nanoparticles with different shapes and a decrease in tubular nanostructures with the increase of ferrocene content in the mixture. A possible mechanism for such morphological alterations is discussed. Transmission electron microscopy (TEM) analysis elucidates that the nanotubes and nanoparticles gain mainly amorphous structures, while sheet- and cloud-like morphologies also present in the materials possess significantly improved crystallinity. As a result, the overall crystallinity was preserved constant for all of the samples, which was confirmed by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) techniques. Finally, electrochemical tests demonstrated that the prepared nanocarbons retained high specific capacitance values in the range of 200-310 F/g (at 0.1 V/s), which can be explained by the measured high specific surface area (650-810 m2/g), total pore volume (1.20-1.55 cm3/g), and the degree of crystallinity. The obtained results demonstrate the suitability of ferrocene for managing the nanocarbons' morphology and open perspectives for the preparation of efficient "green" nanocarbon materials for energy storage applications and beyond.
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Affiliation(s)
- Tatiana Giannakopoulou
- Institute
of Nanoscience and Nanotechnology, National
Center for Scientific Research “Demokritos”, 15341 Agia Paraskevi, Greece
| | - Nadia Todorova
- Institute
of Nanoscience and Nanotechnology, National
Center for Scientific Research “Demokritos”, 15341 Agia Paraskevi, Greece
| | - Niki Plakantonaki
- Institute
of Nanoscience and Nanotechnology, National
Center for Scientific Research “Demokritos”, 15341 Agia Paraskevi, Greece
| | - Michail Vagenas
- Institute
of Nanoscience and Nanotechnology, National
Center for Scientific Research “Demokritos”, 15341 Agia Paraskevi, Greece
| | - Elias Sakellis
- Institute
of Nanoscience and Nanotechnology, National
Center for Scientific Research “Demokritos”, 15341 Agia Paraskevi, Greece
| | | | - Marios Katsiotis
- Group
Innovation & Technology, TITAN Cement
S.A., 11143 Athens, Greece
| | - Christos Trapalis
- Institute
of Nanoscience and Nanotechnology, National
Center for Scientific Research “Demokritos”, 15341 Agia Paraskevi, Greece
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13
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Wang CC, Lo AY, Cheng MC, Chang YS, Shih HC, Shieu FS, Tsai HT. Zinc oxide nanostructures enhanced photoluminescence by carbon-black nanoparticles in Moiré heterostructures. Sci Rep 2023; 13:9704. [PMID: 37322054 DOI: 10.1038/s41598-023-36847-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 06/11/2023] [Indexed: 06/17/2023] Open
Abstract
ZnO/carbon-black heterostructures were synthesized using a sol-gel method and crystallized by annealing at 500 °C under 2 × 10-2 Torr for 10 min. The crystal structures and binding vibration modes were determined by XRD, HRTEM, and Raman spectrometry. Their surface morphologies were observed by FESEM. The Moiré pattern that is observed in the HRTEM images confirms that the carbon-black nanoparticles were covered by the ZnO crystals. Measurements of optical absorptance revealed that the optical band gap of the ZnO/carbon-black heterostructures increased from 2.33 to 2.98 eV as the carbon-black nanoparticle content increases from 0 to 8.33 × 10-3 mol owing to the Burstein-Moss effect. The photoluminescence intensities at the near-band edge and of the violet, and blue light were increased by factors about 68.3, 62.8, and 56.8, respectively, when the carbon-black contents is of the 2.03 × 10-3 mol. This work reveals that the proper carbon-black nanoparticle content involved increases the PL intensities of the ZnO crystals in the short wavelength regime, supporting their potential application in the light-emitting devices.
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Affiliation(s)
- Chih-Chiang Wang
- Department of Chemical and Materials Engineering, National Chin-Yi University of Technology, Taichung, 411030, Taiwan.
| | - An-Ya Lo
- Department of Chemical and Materials Engineering, National Chin-Yi University of Technology, Taichung, 411030, Taiwan
| | - Ming-Che Cheng
- Department of Materials Science and Engineering, National Chung Hsing University, Taichung, 40227, Taiwan
| | - Yu-Sung Chang
- Department of Materials Science and Engineering, National Chung Hsing University, Taichung, 40227, Taiwan
| | - Han-Chang Shih
- Department of Materials Science and Engineering, National Chung Hsing University, Taichung, 40227, Taiwan.
- Department of Chemical Engineering and Materials Science, Chinese Culture University, Taipei, 11114, Taiwan.
| | - Fuh-Sheng Shieu
- Department of Materials Science and Engineering, National Chung Hsing University, Taichung, 40227, Taiwan
| | - He-Ting Tsai
- Instrument Center, The Office of Research and Development, National Chung Hsing University, Taichung, 40227, Taiwan
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14
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Nisa ZU, Chuan LK, Guan BH, Ahmad F, Ayub S. Experimental Correlation of the Role of Synthesized Biochar on Thermal, Morphological, and Crystalline Properties of Coagulation Processed Poly(1,4-phenylene sulfide) Nanocomposites. Polymers (Basel) 2023; 15:polym15081851. [PMID: 37111998 PMCID: PMC10145196 DOI: 10.3390/polym15081851] [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: 02/21/2023] [Revised: 03/15/2023] [Accepted: 03/17/2023] [Indexed: 04/29/2023] Open
Abstract
This work aimed to study the thermal and crystalline properties of poly (1,4-phenylene sulfide)@carbon char nanocomposites. Coagulation-processed nanocomposites of polyphenylene sulfide were prepared using the synthesized mesoporous nanocarbon of coconut shells as reinforcement. The mesoporous reinforcement was synthesized using a facile carbonization method. The investigation of the properties of nanocarbon was completed using SAP, XRD, and FESEM analysis. The research was further propagated via the synthesis of nanocomposites through the addition of characterized nanofiller into poly (1,4-phenylene sulfide) at five different combinations. The coagulation method was utilized for the nanocomposite formation. The obtained nanocomposite was analyzed using FTIR, TGA, DSC, and FESEM analysis. The BET surface area and average pore volume of the bio-carbon prepared from coconut shell residue were calculated to be 1517 m2/g and 2.51 nm, respectively. The addition of nanocarbon to poly (1,4-phenylene sulfide) led to an increase in thermal stability and crystallinity up to 6% loading of the filler. The lowest glass transition temperature was achieved at 6% doping of the filler into the polymer matrix. It was established that the thermal, morphological, and crystalline properties were tailored by synthesizing their nanocomposites with the mesoporous bio-nanocarbon obtained from coconut shells. There is a decline in the glass transition temperature from 126 °C to 117 °C using 6% filler. The measured crystallinity was decreased continuously, with the mixing of the filler exhibiting the incorporation of flexibility in the polymer. So, the loading of the filler into poly (1,4-phenylene sulfide) can be optimized to enhance its thermoplastic properties for surface applications.
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Affiliation(s)
- Zaib Un Nisa
- Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
| | - Lee Kean Chuan
- Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
| | - Beh Hoe Guan
- Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
| | - Faiz Ahmad
- Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
| | - Saba Ayub
- Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
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15
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Grabowska A, Kowalczyk J, Tomala R, Ptak M, Małecka M, Wędzyńska A, Stefanski M, Stręk W, Głuchowski P. Optimization of the Electrochemical Method of Obtaining Graphene Nanoplatelets (GNPs). MATERIALS (BASEL, SWITZERLAND) 2023; 16:2188. [PMID: 36984068 PMCID: PMC10057930 DOI: 10.3390/ma16062188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/22/2023] [Accepted: 03/06/2023] [Indexed: 06/18/2023]
Abstract
Graphene nanoplatelets (GNPs) were prepared using the electrolytic exfoliation method on graphite foil in an ammonium sulfate solution. A series of experiments were conducted in order to optimize the production of the flakes by varying the pH of the solution, applied voltage and current, duration of electrolysis, temperature in the electrolytic system, and type and duration of the ultrasound interaction. The quality of the produced graphene nanoplatelets was analyzed using X-ray diffraction, Raman and IR spectroscopy, and TEM.
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Affiliation(s)
- Adrianna Grabowska
- Faculty of Chemistry, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-422 Wroclaw, Poland
| | - Jerzy Kowalczyk
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-422 Wroclaw, Poland
| | - Robert Tomala
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-422 Wroclaw, Poland
| | - Maciej Ptak
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-422 Wroclaw, Poland
| | - Małgorzata Małecka
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-422 Wroclaw, Poland
| | - Anna Wędzyńska
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-422 Wroclaw, Poland
| | - Mariusz Stefanski
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-422 Wroclaw, Poland
| | - Wiesław Stręk
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-422 Wroclaw, Poland
| | - Paweł Głuchowski
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-422 Wroclaw, Poland
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16
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Cervantes-Diaz KB, Drobek M, Julbe A, Cambedouzou J. SiC Foams for the Photocatalytic Degradation of Methylene Blue under Visible Light Irradiation. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1328. [PMID: 36836960 PMCID: PMC9959366 DOI: 10.3390/ma16041328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 01/30/2023] [Accepted: 02/02/2023] [Indexed: 06/18/2023]
Abstract
SiC foams were synthesized by impregnating preceramic polymer into polyurethane foam templates, resulting in a photo-catalytically active material for the degradation of methylene blue. The crystalline structure, electronic properties, and photocatalytic performance of the SiC foams were characterized using a series of experimental techniques, including X-ray diffraction, electron microscopy, energy dispersive X-ray spectroscopy, N2 physisorption measurements, UV-visible spectroscopy, and methylene blue photodegradation tests. The original polyurethane template's microporous structure was maintained during the formation of the SiC foam, while additional mesopores were introduced by the porogen moieties added to the preceramic polymers. The prepared SiC-based photocatalyst showed attractive photocatalytic activity under visible light irradiation. This structured and reactive material offers good potential for application as a catalytic contactor or membrane reactor for the semi-continuous treatment of contaminated waste waters in ambient conditions.
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17
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Compatibility of mesophase pitch and linear low-density polyethylene for low-cost carbon fiber. JOURNAL OF POLYMER RESEARCH 2023. [DOI: 10.1007/s10965-023-03466-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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18
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Defective graphitic carbon as a high chlorine conversion catalyst for methyl chloride production from methane. J IND ENG CHEM 2023. [DOI: 10.1016/j.jiec.2023.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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19
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Moseenkov SI, Kuznetsov VL, Zolotarev NA, Kolesov BA, Prosvirin IP, Ishchenko AV, Zavorin AV. Investigation of Amorphous Carbon in Nanostructured Carbon Materials (A Comparative Study by TEM, XPS, Raman Spectroscopy and XRD). MATERIALS (BASEL, SWITZERLAND) 2023; 16:1112. [PMID: 36770119 PMCID: PMC9919804 DOI: 10.3390/ma16031112] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/22/2023] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
Amorphous carbon (AC) is present in the bulk and on the surface of nanostructured carbon materials (NCMs) and exerts a significant effect on the physical, chemical and mechanical properties of NCMs. Thus, the determination of AC in NCMs is extremely important for controlling the properties of a wide range of materials. In this work, a comparative study of the effect of heat treatment on the structure and content of amorphous carbon in deposited AC film, nanodiamonds, carbon black and multiwalled carbon nanotube samples was carried out by TEM, XPS, XRD and Raman spectroscopy. It has been established that the use of the 7-peak model for fitting the Raman spectra makes it possible not only to isolate the contribution of the modes of amorphous carbon but also to improve the accuracy of fitting the fundamental G and D2 (D) modes and obtain a satisfactory convergence between XPS and Raman spectroscopy. The use of this model for fitting the Raman spectra of deposited AC film, ND, CB and MWCNT films demonstrated its validity and effectiveness for investigating the amorphous carbon in various carbon systems and its applicability in comparative studies of other NCMs.
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20
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Zhu G, Liang P, Huang CL, Huang CC, Li YY, Wu SC, Li J, Wang F, Tian X, Huang WH, Jiang SK, Hung WH, Chen H, Lin MC, Hwang BJ, Dai H. High-Capacity Rechargeable Li/Cl 2 Batteries with Graphite Positive Electrodes. J Am Chem Soc 2022; 144:22505-22513. [PMID: 36450002 DOI: 10.1021/jacs.2c07826] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Developing new types of high-capacity and high-energy density rechargeable batteries is important to future generations of consumer electronics, electric vehicles, and mass energy storage applications. Recently, we reported ∼3.5 V sodium/chlorine (Na/Cl2) and lithium/chlorine (Li/Cl2) batteries with up to 1200 mAh g-1 reversible capacity, using either a Na or a Li metal as the negative electrode, an amorphous carbon nanosphere (aCNS) as the positive electrode, and aluminum chloride (AlCl3) dissolved in thionyl chloride (SOCl2) with fluoride-based additives as the electrolyte [Zhu et al., Nature, 2021, 596 (7873), 525-530]. The high surface area and large pore volume of aCNS in the positive electrode facilitated NaCl or LiCl deposition and trapping of Cl2 for reversible NaCl/Cl2 or LiCl/Cl2 redox reactions and battery discharge/charge cycling. Here, we report an initially low surface area/porosity graphite (DGr) material as the positive electrode in a Li/Cl2 battery, attaining high battery performance after activation in carbon dioxide (CO2) at 1000 °C (DGr_ac) with the first discharge capacity ∼1910 mAh g-1 and a cycling capacity up to 1200 mAh g-1. Ex situ Raman spectroscopy and X-ray diffraction (XRD) revealed the evolution of graphite over battery cycling, including intercalation/deintercalation and exfoliation that generated sufficient pores for hosting LiCl/Cl2 redox. This work opens up widely available, low-cost graphitic materials for high-capacity alkali metal/Cl2 batteries. Lastly, we employed mass spectrometry to probe the Cl2 trapped in the graphitic positive electrode, shedding light into the Li/Cl2 battery operation.
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Affiliation(s)
- Guanzhou Zhu
- Department of Chemistry and Bio-X, Stanford University, Stanford, California94305, United States
| | - Peng Liang
- Department of Chemistry and Bio-X, Stanford University, Stanford, California94305, United States
| | - Cheng-Liang Huang
- Department of Chemical Engineering, National Chung Cheng University, Chia-Yi62102, Taiwan.,Department of Electrical Engineering, National Chung Cheng University, Chia-Yi62102, Taiwan
| | - Cheng-Chia Huang
- Department of Chemical Engineering, National Chung Cheng University, Chia-Yi62102, Taiwan
| | - Yuan-Yao Li
- Department of Chemical Engineering, National Chung Cheng University, Chia-Yi62102, Taiwan
| | - Shu-Chi Wu
- Department of Chemistry and Bio-X, Stanford University, Stanford, California94305, United States
| | - Jiachen Li
- Department of Chemistry and Bio-X, Stanford University, Stanford, California94305, United States
| | - Feifei Wang
- Department of Chemistry and Bio-X, Stanford University, Stanford, California94305, United States
| | - Xin Tian
- Department of Chemistry and Bio-X, Stanford University, Stanford, California94305, United States
| | - Wei-Hsiang Huang
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei10607, Taiwan.,National Synchrotron Radiation Research Center, Hsinchu30076, Taiwan
| | - Shi-Kai Jiang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei10607, Taiwan
| | - Wei-Hsuan Hung
- Institute of Materials Science and Engineering, National Central University, Taoyuan City32001, Taiwan
| | - Hui Chen
- College of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao, Shandong Province, 266590, P. R. China
| | - Meng-Chang Lin
- College of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao, Shandong Province, 266590, P. R. China
| | - Bing-Joe Hwang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei10607, Taiwan
| | - Hongjie Dai
- Department of Chemistry and Bio-X, Stanford University, Stanford, California94305, United States
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21
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Calcium as an innovative and effective catalyst for the synthesis of graphene-like materials from cellulose. Sci Rep 2022; 12:21492. [PMID: 36513722 PMCID: PMC9747789 DOI: 10.1038/s41598-022-25943-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022] Open
Abstract
Pyrolysis of lignocellulosic biomass (hard carbon) produces poorly graphitic biochar. In this study, nano-structured biochars were produced from microcrystalline cellulose using calcium as a non-conventional catalyst. Calcium is abundant, environmental-friendly and widely accessible. Graphitization of calcium-impregnated cellulose was carried out at 1800 °C, a temperature below 2000 °C where the graphitization usually occurs. XRD, Raman spectroscopy, high-resolution TEM together with the in-house numerical tool developed enable the quantification of the graphene fringes in the biochars. The non-impregnated cellulose biochar was composed of short and poorly stacked graphene fringes. The impregnation with 2 wt.% of calcium led to the conversion of the initial structure into a well-organized and less defective graphene-like one. The graphene-like structures obtained were composed of tens of stacked graphene fringes with a crystallite size up to 20 nm and an average interlayer spacing equal to 0.345 nm, close to the reference value of standard hexagonal graphite (0.3354 nm). The increase of the calcium concentration did not significantly improve the crystallite sizes of the graphene-like materials but rather drastically improved their rate. Our results propose a mechanism and provide new insights on the synthesis of graphene-like materials from bio-feedstocks using calcium where the literature is focused on transition metals such as iron and nickel among others. The decrease of the graphitization temperature below 2000 °C should lower the production cost as well as the environmental impact of the thermal graphene-like materials synthesis using biomass. This finding should stimulate further research in the field and broaden the application perspectives.
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22
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Bozacı G, Acaralı N. Chemical production of activated carbon from green coffee with adsorption isotherm support by Taguchi model. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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23
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A flexible and high energy density -hydrous RuO2 and keratin-derived renewable carbon composite-based asymmetric supercapacitor in redox-mediated electrolytes. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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24
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Delsouz Chahardeh M, Maleki A, Bozorg A. 3D reticulated vitreous carbon as advanced cathode material in galvanic deposition process. J APPL ELECTROCHEM 2022. [DOI: 10.1007/s10800-022-01811-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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25
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Andrade-Guel M, Reyes-Rodríguez PY, Cabello-Alvarado CJ, Cadenas-Pliego G, Ávila-Orta CA. Influence of Modified Carbon Black on Nylon 6 Nonwoven Fabric and Performance as Adsorbent Material. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4247. [PMID: 36500869 PMCID: PMC9735733 DOI: 10.3390/nano12234247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/14/2022] [Accepted: 11/22/2022] [Indexed: 06/17/2023]
Abstract
The number of chronic kidney disease (CKD) persons continues to rise in Mexico. They require renal replacement therapy, and in the absence of it, hemodialysis is the major option for their survival. The uremic toxins present in the blood are removed by hemodialysis, which involve membranes. In this study, nonwoven fabrics with modified carbon black nanoparticles in a matrix polymer of Nylon 6 were obtained and evaluated as an adsorbent material of uremic toxins. All nonwoven fabrics were characterized by FTIR, XRD, TGA, SEM, and contact angle measurements and were evaluated as an adsorbent material for the urea toxin and as an albumin retainer. The findings suggest their potential application as a hemodialysis membrane. Nanocomposites had a higher hydrophilic characteristic compared to pure Nylon 6. The average diameter size of the fibers was in the range of 5 to 50 μm. All nanocomposites nonwoven fabrics showed high removal percentages of inulin in a range of 80-85% at 15 min of contact. Most Ny6 Zytel/CB nanocomposites showed a high percentage of urea removal (80 to 90%).
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Affiliation(s)
| | | | - Christian J. Cabello-Alvarado
- Centro de Investigación en Química Aplicada, Saltillo 25294, Mexico
- CONACYT—Centro de Investigación en Química Aplicada, Saltillo 25294, Mexico
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26
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Activated carbon derived from sugarcane and modified with natural zeolite for efficient adsorption of methylene blue dye: experimentally and theoretically approaches. Sci Rep 2022; 12:18031. [PMID: 36302936 PMCID: PMC9613707 DOI: 10.1038/s41598-022-22421-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 10/14/2022] [Indexed: 01/24/2023] Open
Abstract
The introduction of activated carbon/natural zeolite (AC/NZ) as an efficient and reliable nanoadsorbent for enhancing methylene blue (MB) dye adsorption. By calcining sugarcane waste at various temperatures between 500 and 900 °C, activated carbons (ACs) are formed. Both XRD and SEM were used for the characterization of the prepared adsorbents. Adsorption measurements for the removal of MB dye were made on the impact of pH, beginning MB concentration, and contact time. The maximum AC500/NZ adsorption capacity for MB dye at 25 °C, pH 7, and an AC500/NZ mass of 50 mg was found to be approximately 51 mg/g at an initial concentration of 30 ppm. The pseudo-second-order kinetics model and the Temkin isotherm model describe the adsorption process. The Temkin model shows that the adsorption energy is 1.0 kcal/mol, indicating that the MB-to-AC500/NZ adsorption process occurs physically. Our Monte Carlo (MC) simulation studies supported our findings and showed that the Van der Waals dispersion force was responsible for the MB molecule's physical adsorption. The AC500/NZ adsorbent is thought to be a strong contender for water remediation.
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Wei W, Gu X, Wang R, Feng X, Chen H. Wood-Based Self-Supporting Nanoporous Three-Dimensional Electrode for High-Efficiency Battery Deionization. NANO LETTERS 2022; 22:7572-7578. [PMID: 36083029 DOI: 10.1021/acs.nanolett.2c02583] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Developing highly efficient advanced battery deionization (BDI) electrode materials at a low cost is vital for seawater desalination. Herein, a high-efficiency wood-based BDI electrode has been fabricated for seawater desalination, benefiting from the self-supporting three-dimensional (3D) nanoporous structure and rich redox-active sites. The finely tuned rich electrochemical redox active C═O groups on the surface of the wood electrode derived from the facile thermochemical conversion of lignin play a crucial role in the Faradaic cation removal dynamics of BDI. Coupling the 3D wood electrode and a polyaniline-modified wood electrode as the cathode and anode, an all-wood-electrode-based deionization battery has been successfully assembled with a state-of-the-art ion removal capacity of up to 164 mg g-1 in seawater. Our work reported an example of utilizing wood as the BDI electrode via fine-tuning the redox-active sites, demonstrating a novel resource utilization pathway of converting cheap biomass into BDI electrodes for highly efficient seawater desalination.
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Affiliation(s)
- Wenfei Wei
- Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials, State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, People's Republic of China
| | - Xiaosong Gu
- Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials, State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, People's Republic of China
| | - Ranhao Wang
- Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials, State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, People's Republic of China
| | - Xiaonan Feng
- Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials, State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, People's Republic of China
| | - Hong Chen
- Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials, State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, People's Republic of China
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Liu J, Yang S, Shen J, Fa H, Hou C, Yang M. Conductive metal-organic framework based label-free electrochemical detection of circulating tumor DNA. Mikrochim Acta 2022; 189:391. [PMID: 36138259 DOI: 10.1007/s00604-022-05482-4] [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: 04/25/2022] [Accepted: 08/29/2022] [Indexed: 11/29/2022]
Abstract
An ultrasensitive electrochemical biosensor was designed for the rapid label-free detection of circulating tumor DNA (ctDNA, EGFR 19 Dels for non-small cell lung cancer, NSCLC). We linked the highly conjugated tricatecholate, 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) with Ni(II) ions into the two-dimensional porous conductive metal-organic frameworks (MOFs), which is termed Ni-catecholates (Ni-CAT). Then, the AuNPs/Ni-catecholates/carbon black/polarized pencil graphite electrode (AuNPs/Ni-CAT/CB/PPGE) was obtained by electrodeposition of AuNPs on the surface of PPGE modified with Ni-CAT/CB composite materials. The AuNPs/Ni-CAT/CB/PPGE were used for label-less detection of ctDNA, with a total detection time of only 30 min. Under optimal detection conditions, the AuNPs/Ni-CAT/CB/PPGE sensor exhibited excellent detection performance with good linear response to ctDNA over a wide concentration range and the detection limit down to the femtomolar level. The sensor was applied to the determination of ctDNA in serum samples with high sensitivity. This simple, efficient, and expeditious method has practical value in liquid biopsy of ctDNA and has potential for development in early detection, treatment, and prognosis of tumors. Herein, an ultrasensitive electrochemical biosensor was designed for the rapid label-free detection of ctDNA (EGFR 19 Dels for non-small cell lung cancer, NSCLC). We linked the highly conjugated tricatecholate, 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) with Ni(II) ions into the two-dimensional porous conductive metal-organic frameworks (MOFs), which is termed as Ni-catecholates (Ni-CAT). Then, the AuNPs/Ni-catecholates/carbon black/polarized pencil graphite electrode (AuNPs/Ni-CAT/CB/PPGE) was obtained by electrodeposition of AuNPs on the surface of PPGE modified with Ni-CAT/CB composite materials. The AuNPs/Ni-CAT/CB/PPGEs were used for label-less detection of ctDNA, with a total detection time of only 30 min. Under optimal detection conditions, the AuNPs/Ni-CAT/CB/PPGE sensor exhibited excellent detection performance with good linear response to ctDNA in the concentration range of 1 × 10-15 M to 1 × 10-6 M and with a detection limit as low as 0.32 fM. The sensor was applied for determination of ctDNA in serum samples and gave high sensitivity. This simple, efficient and expeditious method has practical value in liquid biopsy of ctDNA and has potential for development in early detection, treatment and prognosis of tumors.
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Affiliation(s)
- Juan Liu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, People's Republic of China
| | - Siyi Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, People's Republic of China
| | - Jinhui Shen
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, People's Republic of China
| | - Huanbao Fa
- College of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, People's Republic of China
| | - Changjun Hou
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, People's Republic of China. .,College of Bioengineering, Chongqing University, Chongqing, 400044, People's Republic of China.
| | - Mei Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, People's Republic of China. .,College of Bioengineering, Chongqing University, Chongqing, 400044, People's Republic of China.
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Delafontaine L, Murphy E, Guo S, Liu Y, Asset T, Huang Y, Chen J, Zenyuk IV, Pan X, Atanassov P. Synergistic Electrocatalytic Syngas Production from Carbon Dioxide by Bi‐Metallic Atomically Dispersed Catalysts. ChemElectroChem 2022. [DOI: 10.1002/celc.202200647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Laurent Delafontaine
- Department of Chemical and Biomolecular Engineering National Fuel Cell Research Center University of California Irvine California 92697 USA
| | - Eamonn Murphy
- Department of Chemical and Biomolecular Engineering National Fuel Cell Research Center University of California Irvine California 92697 USA
| | - Shengyuan Guo
- Department of Chemical and Biomolecular Engineering National Fuel Cell Research Center University of California Irvine California 92697 USA
| | - Yuanchao Liu
- Department of Chemical and Biomolecular Engineering National Fuel Cell Research Center University of California Irvine California 92697 USA
| | - Tristan Asset
- Department of Chemical and Biomolecular Engineering National Fuel Cell Research Center University of California Irvine California 92697 USA
| | - Ying Huang
- Department of Chemical and Biomolecular Engineering National Fuel Cell Research Center University of California Irvine California 92697 USA
| | - Jiazhe Chen
- Department of Chemical and Biomolecular Engineering National Fuel Cell Research Center University of California Irvine California 92697 USA
| | - Iryna V. Zenyuk
- Department of Chemical and Biomolecular Engineering National Fuel Cell Research Center University of California Irvine California 92697 USA
- Department of Materials Science and Engineering National Fuel Cell Research Center University of California Irvine California 92697 USA
| | - Xiaoqing Pan
- Department of Materials Science and Engineering National Fuel Cell Research Center University of California Irvine California 92697 USA
- Department of Physics and Astronomy University of California Irvine California 92697 USA
| | - Plamen Atanassov
- Department of Chemical and Biomolecular Engineering National Fuel Cell Research Center University of California Irvine California 92697 USA
- Department of Materials Science and Engineering National Fuel Cell Research Center University of California Irvine California 92697 USA
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Wu Q, Zhang Q, Chen X, Song G, Xiao J. Integrated Assessment of Waste Tire Pyrolysis and Upgrading Pathways for Production of High-Value Products. ACS OMEGA 2022; 7:30954-30966. [PMID: 36092573 PMCID: PMC9453798 DOI: 10.1021/acsomega.2c02952] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 08/11/2022] [Indexed: 06/15/2023]
Abstract
Waste tire pyrolysis has received increasing attention as a promising technology recently due to the shortage of fossil resources and the severity of environmental impact. In this study, the process of waste tire pyrolysis and upgrading to obtain high-value products was simulated by Aspen Plus. Also, based on life cycle assessment, the indexes of energy, environmental, economic, and comprehensive performance were proposed to evaluate different high-value pathways. Results demonstrate that the integrated system of waste tire pyrolysis, pyrolytic oil (TPO) refining, and pyrolytic carbon black (CBp) modification has higher energy efficiency than the independent system of TPO refining, with an improvement rate of 2.6%. Meanwhile, the resource-environmental performance of the integrated system is better. However, combined with the economic benefit, the independent system is more comprehensively beneficial, with the index of comprehensive performance (BEECR) of 0.94, which increases by 3.3% compared with the integrated system. Furthermore, the comparisons of different improved high-value paths based on the independent system as the benchmark indicate that the pathway of promoting sulfur conversion during pyrolysis to reduce the sulfur content in TPO can increase the BEECR from 0.94 to 1.064, with the growth of 13.2%. Also, the physical modification of CBp to reduce the production cost and environmental impact has better performance of BEECR, increasing by 20.2%. The final sensitivity analyses show that the combined improved high-value case established by the abovementioned two paths can achieve a favorable benefit in a wide range of crude oil and waste tire prices and the environmental tax.
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Affiliation(s)
- Qijing Wu
- Key
Laboratory of Energy Thermal Conversion and Control of Ministry of
Education, School of Energy and Environment, Southeast University, Nanjing, Jiangsu 210096, China
| | - Qianqian Zhang
- Research
Institute, Doublestar Group Co., Ltd., Qingdao, Shandong 266400, China
| | - Xiaoyan Chen
- Research
Institute, Doublestar Group Co., Ltd., Qingdao, Shandong 266400, China
| | - Guohui Song
- School
of Energy and Power Engineering, Nanjing
Institute of Technology, Nanjing, Jiangsu 211167, China
| | - Jun Xiao
- Key
Laboratory of Energy Thermal Conversion and Control of Ministry of
Education, School of Energy and Environment, Southeast University, Nanjing, Jiangsu 210096, China
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Zheng Y, Qiu W, Wang L, Liu J, Chen S, Li C. Triple Conductive Wiring by Electron Doping, Chelation Coating and Electrochemical Conversion in Fluffy Nb 2 O 5 Anodes for Fast-Charging Li-Ion Batteries. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2202201. [PMID: 35798318 PMCID: PMC9443447 DOI: 10.1002/advs.202202201] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 06/11/2022] [Indexed: 06/15/2023]
Abstract
High-rate anode material is the kernel of developing fast-charging lithium ion batteries (LIBs). T-Nb2 O5 , well-known for its "room and pillar" structure and bulk pseudocapacitive effect, is expected to enable the fast lithium (de)intercalation. But this property is still limited by the low electronic conductivity or insufficient wiring manner. Herein, a strategy of triple conductive wiring through electron doping, chelation coating, and electrochemical conversion inside the microsized porous spheres consisting of dendrite-like T-Nb2 O5 primary particles is proposed to achieve the fast-charging and durable anodes for LIBs. The penetrative implanting of conformal carbon coating (derivative from polydopamine chelate) and NbO domains (induced by excess discharging) reinforces the global supply of electronically conductive wires, apart from those from Co/Mn heteroatom or O vacancy doping. The polydopamine etching on T-Nb2 O5 spheres promotes their evolution into fluffy morphology with better electrolyte infiltration. The synergic electron and ion wiring at different scales endow the modified T-Nb2 O5 anode with ultralong cycling life (143 mAh g-1 at 1 A g-1 after 8500 cycles) and high-rate performance (144.1 mAh g-1 at 10.0 A g-1 ). The permeation of multiple electron wires also enables a high mass loading of T-Nb2 O5 (4.5 mg cm-2 ) with a high areal capacity of 0.668 mAh cm-2 even after 150 cycles.
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Affiliation(s)
- Yongjian Zheng
- CAS Key Laboratory of Materials for Energy ConversionShanghai Institute of CeramicsChinese Academy of SciencesShanghai201899China
- Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of SciencesBeijing100049China
- State Key Laboratory of High Performance Ceramics and Superfine MicrostructureShanghai Institute of CeramicsChinese Academy of Sciences585 He Shuo RoadShanghai201899China
| | - Wujie Qiu
- Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of SciencesBeijing100049China
- State Key Laboratory of High Performance Ceramics and Superfine MicrostructureShanghai Institute of CeramicsChinese Academy of Sciences585 He Shuo RoadShanghai201899China
| | - Lei Wang
- Department of Chemical EngineeringSchool of Environmental and Chemical EngineeringShanghai UniversityShangda Road 99Shanghai200444China
| | - Jianjun Liu
- Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of SciencesBeijing100049China
- State Key Laboratory of High Performance Ceramics and Superfine MicrostructureShanghai Institute of CeramicsChinese Academy of Sciences585 He Shuo RoadShanghai201899China
| | - Shuangqiang Chen
- Department of Chemical EngineeringSchool of Environmental and Chemical EngineeringShanghai UniversityShangda Road 99Shanghai200444China
| | - Chilin Li
- CAS Key Laboratory of Materials for Energy ConversionShanghai Institute of CeramicsChinese Academy of SciencesShanghai201899China
- Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of SciencesBeijing100049China
- State Key Laboratory of High Performance Ceramics and Superfine MicrostructureShanghai Institute of CeramicsChinese Academy of Sciences585 He Shuo RoadShanghai201899China
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Equilibrium adsorption and kinetic study of CO2 and N2 on synthesized carbon Black–Zeolite composite. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.119917] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Abstract
The aim of the study is to assess the influence of the atmosphere during pyrolysis on the course of CO2 gasification of a tire waste char. Two approaches were used: the pyrolysis step was carried out in an inert atmosphere of argon (I) or in an atmosphere of carbon dioxide (II). The examinations were carried out in non-isothermal conditions using a Rubotherm DynTherm thermobalance in the temperature range of 20–1100 °C and three heating rates: 5, 10 and 15 K/min. Based on the results of the gasification examinations, the TG (Thermogravimetry) and DTG (Derivative Thermogravimetry) curves were developed and the kinetic parameters were calculated using the KAS (Kissinger-Akahira-Sunose) and FWO (Flynn-Wall-Ozawa) methods. Additionally, the CO2 gasification of tire chars reaction order (n), was evaluated, and the kinetic parameters were calculated with the use of Coats and Redfern method. Tire waste char obtained in an argon atmosphere was characterized by lower reactivity, which was reflected in shift of conversion and DTG curves to higher temperatures and higher mean values of activation energy. A variability of activation energy values with the progress of the reaction was observed. For char obtained in an argon atmosphere, the activation energy varied in the range of 191.1–277.2 kJ/mol and, for a char obtained in an atmosphere of CO2, in the range of 148.0–284.8 kJ/mol. The highest activation energy values were observed at the beginning of the gasification process and the lowest for the conversion degree 0.5–0.7.
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Moreno S, Brown G, Klein M, Wang Q, Markiewicz JT, Alemán EA, Rushton CG, Quiñones R. Chemical composition effect on latent print development using black fingerprint powders. Forensic Chem 2021. [DOI: 10.1016/j.forc.2021.100366] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Hydrogen Oxidation and Oxygen Reduction Reactions on an OsRu-Based Electrocatalyst Synthesized by Microwave Irradiation. MATERIALS 2021; 14:ma14195692. [PMID: 34640089 PMCID: PMC8510042 DOI: 10.3390/ma14195692] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 09/24/2021] [Accepted: 09/26/2021] [Indexed: 11/28/2022]
Abstract
This work presents an OsRu-based electrocatalyst synthesis, by a rapid and efficient method through microwave irradiation. The outstanding electrocatalyst shows a dual catalytic activity, demonstrating both: hydrogen oxidation and oxygen reduction reactions. The material is structural and morphologically characterized by FT-IR, X-ray diffraction, EDS, and SEM, indicating nanoparticulated Os and Ru metallic phases with a crystallite size of ∼6 nm, calculated by the Scherrer equation. The metal nanoparticles are apparently deposited on a carbonaceous sponge-like morphology structure. Its electrochemical characterization is performed in 0.5 M H2SO4 by the rotating disk electrode technique, employing cyclic and linear sweep voltammetry. Two different ink treatments have been studied to improve the obtained polarization curves. The material is also tested in the presence of methanol for the oxygen reduction reaction, showing an important resistance to this contaminant, making it viable for its use in direct methanol fuel cells (DMFCs) as a cathode and in polymer electrolyte fuel cells (PEMFCs) as an anode as much as a cathode.
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