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Saqib NU, Naqvi M, Li B, Sarmah AK, Munir MT. From scraps to purification: innovative use of food waste-derived hydrochar in eradicating pharmaceutical pollutants. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-33630-1. [PMID: 38758447 DOI: 10.1007/s11356-024-33630-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Accepted: 05/06/2024] [Indexed: 05/18/2024]
Abstract
Chemical products (CPs) such as carbamazepine and naproxen, present in aquatic environments, pose significant risks to both aquatic life and human health. This study investigated the use of hydrothermally carbonized food waste-derived hydrochar (AC-HTC) at three distinct temperatures (200, 250, and 300 °C) as an adsorbent to remove these CPs from water. Our research focused on the impact of hydrothermal carbonization temperature on hydrochar properties and the effects of chemical activation with phosphoric acid on adsorption capacity. Hydrothermal carbonization increased the hydrochar's surface area from 1.47 to 7.52 m2/g, which was further enhanced to 32.81 m2/g after activation with phosphoric acid. Batch adsorption experiments revealed that hydrochar produced at 250 °C (AC-HTC-250) demonstrated high adsorption capacities of 49.10 mg/g for carbamazepine and 14.35 mg/g for naproxen, outperforming several conventional adsorbents. Optimal adsorption occurred at pH 4, aligning well with the Langmuir and pseudo-first-order models. The hydrochar showed potential for regeneration and multiple uses, suggesting its applicability in sustainable wastewater treatment. Future research will explore scalability and effectiveness against a broader range of pollutants.
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Affiliation(s)
- Najam Ul Saqib
- Department of Civil & Environmental Engineering, The University of Auckland, Auckland, New Zealand
| | - Muhammad Naqvi
- College of Engineering and Technology, American University of the Middle East, Egaila, 54200, Kuwait
| | - Bing Li
- Water Research Center, Shenzhen International Graduate School, Tsinghua University, Shenzhen, China
| | - Ajit K Sarmah
- Department of Civil & Environmental Engineering, The University of Auckland, Auckland, New Zealand
| | - Muhammad Tajammal Munir
- College of Engineering and Technology, American University of the Middle East, Egaila, 54200, Kuwait.
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2
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Qin Z, Yang QL, Fan W, Wang YG, Fei JL, Yuan JY, Qin Z, Liu HM, Mei HX, Wang XD. Comparison of methods for activating sesame stalk lignin biochar for removing benzo[a]pyrene from sesame oil. Int J Biol Macromol 2024; 266:131208. [PMID: 38552695 DOI: 10.1016/j.ijbiomac.2024.131208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 03/13/2024] [Accepted: 03/26/2024] [Indexed: 04/04/2024]
Abstract
In this study, three activators and two activation methods were employed to activate sesame lignin-based biochar. The biochar samples were comprehensively characterized, their abilities to adsorb benzo[a]pyrene (BaP) from sesame oil were assessed, and the mechanism was analyzed. The results showed that the biochar obtained by one-step activation was more effective in removing BaP from sesame oil than the biochar produced by two-step activation. Among them, the biochar generated by one-step activation with ZnCl2 as the activator had the largest specific surface area (1068.8776 m3/g), and the richest mesoporous structure (0.7891 m3/g); it removed 90.53 % of BaP from sesame oil. BaP was mainly adsorbed by the mesopores of biochar. Mechanistically, pore-filling, π-π conjugations, hydrogen bonding, and n-π interactions were involved. The adsorption was spontaneous and heat-absorbing. In conclusion, the preparation of sesame lignin biochar using one-step activation with ZnCl2 as the activator was found to be the best for removing BaP from sesame oil. This biochar may be an economical adsorbent for the industrial removal of BaP from sesame oil.
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Affiliation(s)
- Zhi Qin
- College of Food Science and Engineering & Institute of Special Oilseed Processing and Technology, Henan University of Technology, Zhengzhou 450001, China
| | - Qiao-Li Yang
- College of Food Science and Engineering & Institute of Special Oilseed Processing and Technology, Henan University of Technology, Zhengzhou 450001, China
| | - Wei Fan
- College of Food Science and Engineering & Institute of Special Oilseed Processing and Technology, Henan University of Technology, Zhengzhou 450001, China
| | - Ying-Ge Wang
- School of International Education, Henan University of Technology, Zhengzhou 450001, China
| | - Jia-Lin Fei
- College of Food Science and Engineering & Institute of Special Oilseed Processing and Technology, Henan University of Technology, Zhengzhou 450001, China
| | - Jing-Yang Yuan
- School of International Education, Henan University of Technology, Zhengzhou 450001, China
| | - Zhao Qin
- College of Food Science and Engineering & Institute of Special Oilseed Processing and Technology, Henan University of Technology, Zhengzhou 450001, China.
| | - Hua-Min Liu
- College of Food Science and Engineering & Institute of Special Oilseed Processing and Technology, Henan University of Technology, Zhengzhou 450001, China.
| | - Hong-Xian Mei
- Henan Sesame Research Center, Henan Academy of Agricultural Sciences, Zhengzhou 450008, China
| | - Xue-De Wang
- College of Food Science and Engineering & Institute of Special Oilseed Processing and Technology, Henan University of Technology, Zhengzhou 450001, China
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3
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Fajardo-Puerto E, López-García N, Elmouwahidi A, Bailón-García E, Carrasco-Marín F, Ramírez-Valencia LD, Pérez-Cadenas AF. Size Control of Carbon Xerogel Spheres as Key Factor Governing the H 2O 2 Selectivity in Metal-Free Bifunctional Electro-Fenton Catalysts for Tetracycline Degradation. Gels 2024; 10:306. [PMID: 38786223 PMCID: PMC11121276 DOI: 10.3390/gels10050306] [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: 04/10/2024] [Revised: 04/22/2024] [Accepted: 04/25/2024] [Indexed: 05/25/2024] Open
Abstract
Carbon xerogel spheres co-doped with nitrogen and eco-graphene were synthesized using a typical solvothermal method. The results indicate that the incorporation of eco-graphene enhances the electrochemical properties, such as the current density (JK) and the selectivity for the four transferred electrons (n). Additionally, nitrogen doping has a significant effect on the degradation efficiency, varying with the size of the carbon xerogel spheres, which could be attributed to the type of nitrogenous group doped in the carbon material. The degradation efficiency improved in the nanometric spheres (48.3% to 61.6%) but decreased in the micrometric-scale spheres (58.6% to 53.4%). This effect was attributed to the N-functional groups present in each sample, with N-CNS-5 exhibiting a higher percentage of graphitic nitrogen (35.7%) compared to N-CMS-5 (15.3%). These findings highlight the critical role of sphere size in determining the type of N-functional groups present in the sample. leading to enhanced degradation of pollutants as a result of the electro-Fenton process.
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Affiliation(s)
- Edgar Fajardo-Puerto
- Materiales Polifuncionales Basados en Carbono, Departamento de Química Inorgánica—Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente—Universidad de Granada (UEQ-UGR), 18071 Granada, Spain; (N.L.-G.); (A.E.); (F.C.-M.); (L.D.R.-V.); (A.F.P.-C.)
| | | | | | - Esther Bailón-García
- Materiales Polifuncionales Basados en Carbono, Departamento de Química Inorgánica—Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente—Universidad de Granada (UEQ-UGR), 18071 Granada, Spain; (N.L.-G.); (A.E.); (F.C.-M.); (L.D.R.-V.); (A.F.P.-C.)
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Shabi AH, Prima Hardianto Y, Shaheen Shah S, Omar Al-Qwairi F, Mohamed MM, Nasiruzzaman Shaikh M, Saeed Alzahrani A, Aziz MA. Advancements in Olive-derived Carbon: Preparation Methods and Sustainable Applications. Chem Asian J 2024; 19:e202400045. [PMID: 38375590 DOI: 10.1002/asia.202400045] [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: 01/15/2024] [Revised: 02/14/2024] [Accepted: 02/16/2024] [Indexed: 02/21/2024]
Abstract
In the realm of material science, carbon materials, especially olive-derived carbon (ODC), have become vital due to their sustainability and diverse properties. This review examines the sustainable extraction and use of ODC, a carbohydrate-rich by-product of olive biomass. We focus on innovative preparation techniques like pyrolysis, which are crucial forenhancing ODC's microstructure and surface properties. Variables such as activating agents, impregnation ratios, and pyrolysis conditions significantly influence these properties. ODC's high specific surface area renders it invaluable for applications in energy storage (batteries and supercapacitors) and environmental sectors (water purification, hydrogen storage). Its versatility and accessibility underscore its potential for broad industrial use, makingit as a key element in sustainable development. This review provides a detailed analysis of ODC preparation methodologies, its various applications, and its role in advancing sustainable energy solutions. We highlight the novelty of ODC research and its impact on future studies, establishing this review as a crucial resource for researchers and practitioners in sustainable carbon materials. As global focus shifts towards eco-friendly solutions, ODC emerges as a critical component in shaping a sustainable, innovation-driven future.
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Affiliation(s)
- A H Shabi
- Interdisciplinary Research Center for Hydrogen Technology and Carbon Management (IRC-HTCM), King Fahd University of Petroleum & Minerals, KFUPM Box 5040, Dhahran, 31261, Saudi Arabia
| | - Yuda Prima Hardianto
- Physics Department, King Fahd University of Petroleum & Minerals, KFUPM Box 5047, Dhahran, 31261, Saudi Arabia
| | - Syed Shaheen Shah
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8520, Japan
| | - Fatima Omar Al-Qwairi
- Interdisciplinary Research Center for Hydrogen Technology and Carbon Management (IRC-HTCM), King Fahd University of Petroleum & Minerals, KFUPM Box 5040, Dhahran, 31261, Saudi Arabia
| | - Mostafa M Mohamed
- Physics Department, King Fahd University of Petroleum & Minerals, KFUPM Box 5047, Dhahran, 31261, Saudi Arabia
| | - M Nasiruzzaman Shaikh
- Interdisciplinary Research Center for Hydrogen Technology and Carbon Management (IRC-HTCM), King Fahd University of Petroleum & Minerals, KFUPM Box 5040, Dhahran, 31261, Saudi Arabia
| | - Atif Saeed Alzahrani
- Materials Science and Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
- Interdisciplinary Research Center for Sustainable Energy Systems (IRC-SES), King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - Md Abdul Aziz
- Interdisciplinary Research Center for Hydrogen Technology and Carbon Management (IRC-HTCM), King Fahd University of Petroleum & Minerals, KFUPM Box 5040, Dhahran, 31261, Saudi Arabia
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Huarote-Garcia E, Cardenas-Riojas AA, Monje IE, López EO, Arias-Pinedo OM, Planes GA, Baena-Moncada AM. Activated Carbon Electrodes for Supercapacitors from Purple Corncob ( Zea maysL.). ACS ENVIRONMENTAL AU 2024; 4:80-88. [PMID: 38525024 PMCID: PMC10958655 DOI: 10.1021/acsenvironau.3c00048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 12/11/2023] [Accepted: 12/12/2023] [Indexed: 03/26/2024]
Abstract
Activated carbon-based supercapacitor electrodes synthesized from biomass or waste-derived biomass have recently attracted considerable attention because of their low cost, natural abundance, and power delivery performance. In this work, purple-corncob-based active carbons are prepared by KOH activation and subsequently evaluated as a composite electrode for supercapacitors using either an acidic or an alkali solution as the electrolyte. The synthesis of the material involves mixing the purple corncob powder with different concentrations of KOH (in the range of 5% to 30%) and a thermal treatment at 700 °C under an inert atmosphere. Physicochemical characterizations were performed using scanning electron microscopy, Raman spectroscopy, N2 physisorption analysis, Fourier-transform infrared spectroscopy, and X-ray photoelectron spectroscopy, while the electrochemical characteristics were determined using cyclic voltammetry, a galvanostatic charge/discharge curve, and electrochemical impedance techniques measured in a three- and two-electrode system. Composite electrodes activated with 10% KOH had a specific surface area of 728 m2 g-1, and high capacitances of 195 F g-1 at 0.5 A g-1 in 1 mol L-1 H2SO4 and 116 F g-1 at 0.5 A g-1 in 1 mol L-1 KOH were obtained. It also presented a 76% capacitance retention after 50 000 cycles. These properties depend significantly on the microporous area and micropore volume characteristics of the activated carbon. Overall, our results indicate that purple corncob has an interesting prospect as a carbon precursor material for supercapacitor electrodes.
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Affiliation(s)
- Emily Huarote-Garcia
- Laboratorio
de Investigación de Electroquímica Aplicada, Facultad de Ciencias de la Universidad Nacional de
Ingeniería, Av. Túpac Amaru 210, Rímac 15333, Lima, Perú
| | - Andy A. Cardenas-Riojas
- Laboratorio
de Investigación de Electroquímica Aplicada, Facultad de Ciencias de la Universidad Nacional de
Ingeniería, Av. Túpac Amaru 210, Rímac 15333, Lima, Perú
| | - Ivonne E. Monje
- Laboratorio
de Investigación de Electroquímica Aplicada, Facultad de Ciencias de la Universidad Nacional de
Ingeniería, Av. Túpac Amaru 210, Rímac 15333, Lima, Perú
| | - Elvis O. López
- Department
of Experimental Low Energy Physics, Brazilian
Center for Research in Physics (CBPF), Rio de Janeiro 22290-180, Brazil
| | - Ofelia M. Arias-Pinedo
- Laboratorio
de Investigación de Electroquímica Aplicada, Facultad de Ciencias de la Universidad Nacional de
Ingeniería, Av. Túpac Amaru 210, Rímac 15333, Lima, Perú
| | - Gabriel A. Planes
- Facultad
de Ciencias Exactas Fisicoquímicas y Naturales - Instituto
de Investigaciones en Tecnologías Energéticas y Materiales
Avanzados (IITEMA) Universidad Nacional de Río Cuarto, Ruta Nac. 36, Km 601, Río Cuarto 5800, Córdoba, Argentina
| | - Angélica M. Baena-Moncada
- Laboratorio
de Investigación de Electroquímica Aplicada, Facultad de Ciencias de la Universidad Nacional de
Ingeniería, Av. Túpac Amaru 210, Rímac 15333, Lima, Perú
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6
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Teng Y, Chen K, Jiang H, Hu Y, Seyler BC, Appiah A, Peng S. Utilization of phosphoric acid-modified biochar to reduce vanadium leaching potential and bioavailability in soil. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 344:123360. [PMID: 38228260 DOI: 10.1016/j.envpol.2024.123360] [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: 10/07/2023] [Revised: 01/04/2024] [Accepted: 01/13/2024] [Indexed: 01/18/2024]
Abstract
Remediating vanadium (V) polluted soil has garnered widespread attention over the past decade. Yet, few research projects have investigated the stabilization of soil V using modified biochar, so the effects and interacting mechanisms between soil properties and modified biochar for V immobilization and stabilization remain unclear. Hence, this gap is addressed by determining the leaching behavior and mechanisms of soil V on different dosages of phosphoric acid (H3PO4) impregnated biochar (MLBC, 0.5%-4%). The applicability and durability in soil V immobilization was investigated under acid precipitation. The MLBC effect on V bioavailability and mobility was assessed first by CaCl2, Toxicity Characteristic Leaching Procedure (TCLP) and Synthetic Precipitation Leaching Procedure (SPLP) extractions in different periods. The V concentrations significantly reduced in CaCl2, TCLP, and SPLP extract with MLBC at each dosage (30 d), while slight to significant increase in SPLP and TCLP extract V was recorded in a long-term incubation (90 d). Column leaching test further demonstrated the high durability of 4% MLBC in V stabilization under continuous acid exposure. Compared to the control (no-biochar), the accumulated V content in the leaching solution significantly decreased in MLBC-amended soil. Acid soluble fraction of V showed significant negative correlation with both soil organic matter (SOM) and available P, which was positively correlated with pH, suggested that pH, available P and SOM were key factors affecting the bioavailability of V in soil. Moreover, combining with the characterization results of MLBC and amended soil, the results revealed that H3PO4 modified biochar played a vital role on V immobilization and soil improvement by forming electrostatic adsorption, ion exchange, redox reaction or complexation with the increase of functional groups. These revealed an efficient and steady development of soil quality and treatment for soil V contamination, under MLBC operation to soil polluted with exogenous V.
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Affiliation(s)
- Yi Teng
- State Key Laboratory of Geohazard Prevention and Geoenvironment Proctection, Chengdu University of Technology, Chengdu 610059, Sichuan, China; College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Kexin Chen
- State Key Laboratory of Geohazard Prevention and Geoenvironment Proctection, Chengdu University of Technology, Chengdu 610059, Sichuan, China; College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Hao Jiang
- State Key Laboratory of Geohazard Prevention and Geoenvironment Proctection, Chengdu University of Technology, Chengdu 610059, Sichuan, China; College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Yunfei Hu
- College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Barnabas C Seyler
- Shude International, Chengdu Shude High School, Chengdu 610000, Sichuan, China; Department of Environment, College of Architecture and Environment, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Augustine Appiah
- State Key Laboratory of Geohazard Prevention and Geoenvironment Proctection, Chengdu University of Technology, Chengdu 610059, Sichuan, China; College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Shuming Peng
- State Key Laboratory of Geohazard Prevention and Geoenvironment Proctection, Chengdu University of Technology, Chengdu 610059, Sichuan, China; College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan 610059, China.
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7
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Zandifar A, Esmaeilzadeh F, Rodríguez-Mirasol J. Hydrogen-rich gas production via supercritical water gasification (SCWG) of oily sludge over waste tire-derived activated carbon impregnated with Ni: Characterization and optimization of activated carbon production. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 342:123078. [PMID: 38052340 DOI: 10.1016/j.envpol.2023.123078] [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: 08/30/2023] [Revised: 11/15/2023] [Accepted: 11/29/2023] [Indexed: 12/07/2023]
Abstract
In this study, the production of activated carbon (AC) through the chemical activation of waste tire (WT) using H3PO4 and KOH for H2 production by SCWG of oily sludge (OS) donated by Persian Gulf Star Oil Company was investigated. H3PO4 was the best activating agent based on some pretests results, and then the synthesis of AC was optimized using Response Surface Methodology. Based on BET surface area of synthesized ACs, thirty combinations of the four variables namely; activation temperature (350-550 °C); activation time (1-4 h); H3PO4 to WT ratio (1-3 w.w-1); and H3PO4 concentration (20-40 wt%) were optimized. CHNS, TGA, FE-SEM, and EDS-mapping analyses were used to characterize the AC and catalyst synthesized in optimum condition (activation temperature: 450 °C; activation time: 2.5 h; H3PO4 to WT ratio: 2 w.w-1; and H3PO4 concentration: 40 wt%), which presented a surface area of 170 m2 g-1. Finally, Ni was impregnated on the optimized AC with different loadings (5-15 wt%) to evaluate its performance in H2 production by SCWG of OS. Although H2 yield in catalytic experiments was higher than that observed in non-catalytic experiment, results showed that the maximum H2 selectivity was 66% in SCWG of OS using AC impregnated with 10 wt% Ni.
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Affiliation(s)
- Ali Zandifar
- Chemical Engineering Department, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran.
| | - Feridun Esmaeilzadeh
- Chemical Engineering Department, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran; Enhanced Oil and Gas Recovery Institute, Advanced Research Group for Gas Condensate Recovery, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran.
| | - José Rodríguez-Mirasol
- Chemical Engineering Department, University of Málaga, Campus de Teatinos s/n, 29010, Málaga, Spain
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8
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Barakat NAM, Mahmoud MS, Moustafa HM. Comparing specific capacitance in rice husk-derived activated carbon through phosphoric acid and potassium hydroxide activation order variations. Sci Rep 2024; 14:1460. [PMID: 38233435 PMCID: PMC10794207 DOI: 10.1038/s41598-023-49675-0] [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: 07/07/2023] [Accepted: 12/11/2023] [Indexed: 01/19/2024] Open
Abstract
This manuscript investigates the influence of the chemical activation step order and process parameters on the specific capacitance of activated carbon derived from rice husk. The chemical activation was performed either before or after the carbonization step, using phosphoric acid (H3PO4) and potassium hydroxide (KOH) as activating agents. For activation before carbonization, the carbonization process was conducted at various temperatures (600, 750, 850, and 1050 °C). On the other hand, for activation after carbonization, the effect of the volume of the chemical agent solution was studied, with 0, 6, 18, 21, 24, and 30 mL/g of phosphoric acid and 0, 18, 30, 45, 60, and 90 mL/g of 3.0 M KOH solution. The results revealed that in the case of chemical activation before carbonization, the optimum temperature for maximizing specific capacitance was determined to be 900 °C. Conversely, in the case of chemical activation after carbonization, the optimal volumes of the chemical agent solutions were found to be 30 mL/g for phosphoric acid (H3PO4) and 21 mL/g for potassium hydroxide (KOH). Moreover, it was observed that utilizing phosphoric acid treatment before the carbonization step leads to an 21% increase in specific capacitance, attributed to the retention of inorganic compounds, particularly silica (SiO2). Conversely, when rice husks were treated with KOH after the carbonization step, the specific capacitance was found to be doubled compared to treatment with KOH prior to the carbonization step due to embedding of SiO2 and KHCO3 inorganic constituents. This study provides valuable insights into the optimization of the chemical activation step order and process parameters for enhanced specific capacitance in rice husk-derived activated carbon. These findings contribute to the development of high-performance supercapacitors using rice husk as a sustainable and cost-effective precursor material.
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Affiliation(s)
- Nasser A M Barakat
- Faculty of Engineering, Chemical Engineering Department, Minia University, El-Minia, 61516, Egypt.
| | - Mohamed S Mahmoud
- Faculty of Engineering, Chemical Engineering Department, Minia University, El-Minia, 61516, Egypt
- Department of Engineering, University of Technology and Applied Sciences, Suhar, 311, Oman
| | - Hager M Moustafa
- Faculty of Engineering, Chemical Engineering Department, Minia University, El-Minia, 61516, Egypt
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9
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Valencia-Valero LC, Fajardo-Puerto E, Elmouwahidi A, Bailón-García E, Carrasco-Marín F, Pérez-Cadenas AF. Facile Synthesis of Carbon-Based Inks to Develop Metal-Free ORR Electrocatalysts for Electro-Fenton Removal of Amoxicillin. Gels 2024; 10:53. [PMID: 38247776 PMCID: PMC10815112 DOI: 10.3390/gels10010053] [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: 12/18/2023] [Revised: 01/04/2024] [Accepted: 01/09/2024] [Indexed: 01/23/2024] Open
Abstract
The electro-Fenton process is based on the generation of hydroxyl radicals (OH•) from hydroxide peroxide (H2O2) generated in situ by an oxygen reduction reaction (ORR). Catalysts based on carbon gels have aroused the interest of researchers as ORR catalysts due to their textural, chemical and even electrical properties. In this work, we synthesized metal-free electrocatalysts based on carbon gels doped with graphene oxide, which were conformed to a working electrode. The catalysts were prepared from organic-gel-based inks using painted (brush) and screen-printed methods free of binders. These new methods of electrode preparation were compared with the conventional pasted method on graphite supports using a binder. All these materials were tested for the electro-Fenton degradation of amoxicillin using a homemade magnetite coated with carbon (Fe3O4/C) as a Fenton catalyst. All catalysts showed very good behavior, but the one prepared by ink painting (brush) was the best one. The degradation of amoxicillin was close to 90% under optimal conditions ([Fe3O4/C] = 100 mg L-1, -0.55 V) with the catalyst prepared using the painted method with a brush, which had 14.59 mA cm-2 as JK and a H2O2 electrogeneration close to 100% at the optimal voltage. These results show that carbon-gel-based electrocatalysts are not only very good at this type of application but can be adhered to graphite free of binders, thus enhancing all their catalytic properties.
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Affiliation(s)
| | - Edgar Fajardo-Puerto
- UGR-Carbon, Materiales Polifuncionales Basados en Carbono, Dpto. Química Inorgánica, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente, Universidad de Granada (UEQ-UGR), 18071 Granada, Spain; (L.C.V.-V.); (A.E.); (E.B.-G.); (F.C.-M.)
| | | | | | | | - Agustín Francisco Pérez-Cadenas
- UGR-Carbon, Materiales Polifuncionales Basados en Carbono, Dpto. Química Inorgánica, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente, Universidad de Granada (UEQ-UGR), 18071 Granada, Spain; (L.C.V.-V.); (A.E.); (E.B.-G.); (F.C.-M.)
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10
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Xu S, Ni H, Zhang X, Han C, Qian J. Abundant Surface Defects in Cobalt Hydroxides/Oxyhydroxides Induced by Zinc Species Facilitate Water Oxidation. Inorg Chem 2023; 62:14757-14763. [PMID: 37639239 DOI: 10.1021/acs.inorgchem.3c02210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
Abstract
The complex process of the anodic oxygen evolution reaction (OER) severely hinders overall water splitting, which further limits the large-scale production and application of hydrogen energy. In this work, one type of bimetallic coordination polymer of ZnCoBTC using the MOF-on-MOF strategy has been synthesized where both Co(II) and Zn(II) cations exhibit the same coordination environment. By applying an electric potential, the predesigned bimetallic MOF precursor can be conveniently degraded into CoOxHy as an active species for efficient OER. Owing to the dissolution of ZnOxHy species, in situ formed disordered defects on the external surface of the catalyst increase the specific surface area as well as expose abundant active materials. Therefore, the ZnCoOxHy nanosheet shows excellent OER performance and reaches an overpotential of only 334 mV at 10 mA cm-2 with a Tafel slope of 66.4 mV dec-1, indicating fast reaction kinetics. The results demonstrate that metals with the same coordination environment can undergo in situ replacement or secondary growth on the pristine MOF, and they can be electrochemically degraded into highly efficient catalysts for future energy applications.
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Affiliation(s)
- Shaojie Xu
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325000, P. R. China
| | - Huijie Ni
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325000, P. R. China
| | - Xiaodeng Zhang
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325000, P. R. China
| | - Cheng Han
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325000, P. R. China
| | - Jinjie Qian
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325000, P. R. China
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11
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Peng X, Tang K, Zhang Z, Hu J, Li G, Wang J, Xie X, Zhang N, Wu Z. P-doped porous carbon from camellia shell for high-performance room temperature sodium-sulfur batteries. NANOTECHNOLOGY 2023; 34:475401. [PMID: 37557085 DOI: 10.1088/1361-6528/acee85] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 08/09/2023] [Indexed: 08/11/2023]
Abstract
Room-temperature sodium-sulfur batteries are still hampered by severe shuttle effects and sluggish kinetics. Most of the sulfur hosts require high cost and complex synthesis process. Herein, a facile method is proposed to prepare a phosphorous doped porous carbon (CSBP) with abundant defect sites from camellia shell by oxidation pretreatment combined with H3PO4activation. The pretreatment can introduce pores and adjust the structure of biochar precursor, which facilitates the further activation of H3PO4and effectively avoids the occurrence of large agglomeration. Profiting from the synergistic effects of physical confinement and doping effect, the prepared CSBP/S cathode delivers a high reversible capacity of 804 mAh g-1after 100 cycles at 0.1 C and still maintains an outstanding capacity of 458 mAh g-1after 500 cycles at 0.5 C (1 C = 1675 mA g-1). This work provides new insights into the rational design of the microstructures of carbon hosts for high-performance room temperature sodium-sulfur batteries.
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Affiliation(s)
- Xiangqi Peng
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Kejian Tang
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Ziying Zhang
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Jian Hu
- College of Materials Science and Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Guohao Li
- College of Materials Science and Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Jie Wang
- College of Materials Science and Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Xiuqiang Xie
- College of Materials Science and Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Nan Zhang
- College of Materials Science and Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Zhenjun Wu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
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12
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Villarreal-Rueda J, Zapata-Benabithe Z, Posada L, Martínez E, Herrera S, López S, Sobrido ABJ, Castro CI. Bacterial Nanocellulose from Komagataeibacter Medellinensis in Fique Juice for Activated Carbons Production and Its Application for Supercapacitor Electrodes. Polymers (Basel) 2023; 15:polym15071760. [PMID: 37050374 PMCID: PMC10096803 DOI: 10.3390/polym15071760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 03/27/2023] [Accepted: 03/28/2023] [Indexed: 04/05/2023] Open
Abstract
This paper presents the results obtained from the chemical activation of bacterial nanocellulose (BCN) using fique juice as a culture medium. BNC activation (BNCA) was carried out with H3PO4 and KOH at activation temperatures between 500 °C to 800 °C. The materials obtained were characterized morphologically, physicochemically, superficially, and electrochemically, using scanning electron microscopy, X-ray photoelectron spectroscopy (XPS), the physisorption of gases N2 and CO2 at 77 K and 273 K, respectively, cyclic voltammetry, chronopotentiometry, and electrochemical impedance spectroscopy (EIS). The samples activated with H3PO4 presented specific surface areas (SBET) around 780 m2 g−1, while those activated with KOH values presented specific surface areas between 680 and 893 m2 g−1. The XPS analysis showed that the PXPS percentage on the surface after H3PO4 activation was 11 wt%. The energy storage capacitance values ranged between 97.5 F g−1 and 220 F g−1 by EIS in 1 M H2SO4. The samples with the best electrochemical performance were activated with KOH at 700 °C and 800 °C, mainly due to the high SBET available and the accessibility of the microporosity. The capacitance of BNCAs was mainly improved by electrostatic effects due to the SBET rather than that of pseudocapacitive ones due to the presence of phosphorus heteroatoms.
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Affiliation(s)
- Juliana Villarreal-Rueda
- Semillero de Termofluidos y Conversión de la Energía, Ingeniería Química, Escuela de Ingenierías, Universidad Pontificia Bolivariana, Medellín 050031, Colombia
| | - Zulamita Zapata-Benabithe
- Grupo de Energía y Termodinámica, Ingeniería Química, Escuela de Ingenierías, Universidad Pontificia Bolivariana, Medellín 050031, Colombia
| | - Laia Posada
- Grupo de Investigación sobre Nuevos Materiales, Ingeniería en Nanotecnología, Escuela de Ingenierías, Universidad Pontificia Bolivariana, Medellín 050031, Colombia
| | - Estefanía Martínez
- Grupo de Investigación sobre Nuevos Materiales, Ingeniería en Nanotecnología, Escuela de Ingenierías, Universidad Pontificia Bolivariana, Medellín 050031, Colombia
| | - Sara Herrera
- Grupo de Investigación sobre Nuevos Materiales, Ingeniería en Nanotecnología, Escuela de Ingenierías, Universidad Pontificia Bolivariana, Medellín 050031, Colombia
| | - Stiven López
- Grupo de Investigación sobre Nuevos Materiales, Ingeniería en Nanotecnología, Escuela de Ingenierías, Universidad Pontificia Bolivariana, Medellín 050031, Colombia
| | - Ana B. J. Sobrido
- School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UK
| | - Cristina I. Castro
- Grupo de Investigación sobre Nuevos Materiales, Ingeniería en Nanotecnología, Escuela de Ingenierías, Universidad Pontificia Bolivariana, Medellín 050031, Colombia
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13
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Jerez F, Ramos PB, Córdoba VE, Ponce MF, Acosta GG, Bavio MA. Yerba mate: From waste to activated carbon for supercapacitors. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 330:117158. [PMID: 36603253 DOI: 10.1016/j.jenvman.2022.117158] [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: 11/02/2022] [Revised: 12/09/2022] [Accepted: 12/25/2022] [Indexed: 06/17/2023]
Abstract
Developing technological solutions that use yerba mate waste as precursors is key to reducing the environmental impact caused by the lack of treatment and its accumulation in landfills. Due to their physicochemical properties, these residues can be used to develop activated carbons. Activated carbon is a versatile material with a high surface area that can be used for energy storage. In this work, yerba mate residues were valued by producing chemically activated carbon to be used as electrode material in supercapacitors. Activated carbons were developed through chemical activation in two steps with KOH. Variables such as impregnation ratio and activation temperature are studied. The developed carbons were characterized by physicochemical and electrochemical techniques. They were found to have high surface areas, up to 1800 m2 g-1, with a hierarchical porous distribution. A maximum specific capacitance of 644 F g-1 at 0.1 A g-1, and power values of ca 32,000 W kg-1, at 33 A g-1 were found. All the synthesized carbons have excellent electrochemical properties and are suitable for use as active material in supercapacitors.
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Affiliation(s)
- Florencia Jerez
- CIFICEN, UNCPBA-CICPBA-CONICET, Olavarría, Buenos Aires, Argentina; National University of the Center of the Province of Buenos Aires, Faculty of Engineering, INTELYMEC, Avda. Del Valle 5737, B7400JWI, Olavarría, Buenos Aires, Argentina.
| | - Pamela B Ramos
- CIFICEN, UNCPBA-CICPBA-CONICET, Olavarría, Buenos Aires, Argentina; National University of the Center of the Province of Buenos Aires, Faculty of Engineering, INMAT, Avda. Del Valle 5737, B7400JWI, Olavarría, Buenos Aires, Argentina
| | - Verónica E Córdoba
- CIFICEN, UNCPBA-CICPBA-CONICET, Olavarría, Buenos Aires, Argentina; National University of the Center of the Province of Buenos Aires, Faculty of Engineering, INTELYMEC, Avda. Del Valle 5737, B7400JWI, Olavarría, Buenos Aires, Argentina
| | - M Federico Ponce
- CIFICEN, UNCPBA-CICPBA-CONICET, Olavarría, Buenos Aires, Argentina; National University of the Center of the Province of Buenos Aires, Faculty of Engineering, INTELYMEC, Avda. Del Valle 5737, B7400JWI, Olavarría, Buenos Aires, Argentina
| | - Gerardo G Acosta
- CIFICEN, UNCPBA-CICPBA-CONICET, Olavarría, Buenos Aires, Argentina; National University of the Center of the Province of Buenos Aires, Faculty of Engineering, INTELYMEC, Avda. Del Valle 5737, B7400JWI, Olavarría, Buenos Aires, Argentina
| | - Marcela A Bavio
- CIFICEN, UNCPBA-CICPBA-CONICET, Olavarría, Buenos Aires, Argentina; National University of the Center of the Province of Buenos Aires, Faculty of Engineering, INTELYMEC, Avda. Del Valle 5737, B7400JWI, Olavarría, Buenos Aires, Argentina
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14
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Wang S, Zhao H, Liu J, Wang X, Li J, Shi E, Wang C, Yang J, Zhang Z. A study on and adsorption mechanism of ammonium nitrogen by modified corn straw biochar. ROYAL SOCIETY OPEN SCIENCE 2023; 10:221535. [PMID: 36778959 PMCID: PMC9905994 DOI: 10.1098/rsos.221535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 01/13/2023] [Indexed: 06/18/2023]
Abstract
Using corn stover as raw material, the adsorption mechanism of ammonium nitrogen by biochar prepared by different modification methods was studied. The biochar was characterized by Fourier transform infrared spectroscopy, surface-area analysis and scanning electron microscopy. The results showed that the adsorption of NH 4 + - N by different modified biochars confirmed the quasi-second-order kinetic equation (R 2 > 0.95, p ≤ 0.05), the adsorption isotherms of the Langmuir equation (R 2 ≥ 0.96, p ≤ 0.05). ΔG θ < 0, ΔH θ > 0 indicated that the adsorption of NH 4 + - N by different modified biochars was a spontaneous endothermic reaction. With the increase in adsorption temperature, the adsorption capacity of biochar to ammonium nitrogen increased gradually. The adsorption was monolayer adsorption and was controlled by a fast reaction. Both KOH and FeCl3 modified biochars significantly improved the adsorption capacity of NH 4 + - N , and the adsorption mechanism was different. The adsorption capacity of NH 4 + - N by FeCl3 modified biochars mainly increased the specific surface area and micropore volume. The adsorption of ammonium nitrogen after KOH modification primarily depended on the wealthy oxygen-containing functional groups. The adsorption effect of ammonium nitrogen modified by KOH was better than that of biochar modified by FeCl3.
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Affiliation(s)
- Sinan Wang
- College of Resources and Environment, Jilin Agricultural University/Key Laboratory of Sustainable Utilization of Soil Resources in Commodity Grain Base of Jilin Province, Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, Changchun 130118, People's Republic of China
| | - Hongshuo Zhao
- College of Environmental Science and Engineering, Tongji University, Shanghai, People's Republic of China
| | - Jinhua Liu
- College of Resources and Environment, Jilin Agricultural University/Key Laboratory of Sustainable Utilization of Soil Resources in Commodity Grain Base of Jilin Province, Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, Changchun 130118, People's Republic of China
| | - Xue Wang
- Jilin Provincial Agro-Tech Extension Station, Changchun, People's Republic of China
| | - Jiahao Li
- College of Resources and Environment, Jilin Agricultural University/Key Laboratory of Sustainable Utilization of Soil Resources in Commodity Grain Base of Jilin Province, Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, Changchun 130118, People's Republic of China
| | - Enping Shi
- College of Resources and Environment, Jilin Agricultural University/Key Laboratory of Sustainable Utilization of Soil Resources in Commodity Grain Base of Jilin Province, Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, Changchun 130118, People's Republic of China
| | - Ci Wang
- College of Resources and Environment, Jilin Agricultural University/Key Laboratory of Sustainable Utilization of Soil Resources in Commodity Grain Base of Jilin Province, Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, Changchun 130118, People's Republic of China
| | - Jingmin Yang
- College of Resources and Environment, Jilin Agricultural University/Key Laboratory of Sustainable Utilization of Soil Resources in Commodity Grain Base of Jilin Province, Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, Changchun 130118, People's Republic of China
| | - Zhongqing Zhang
- College of Resources and Environment, Jilin Agricultural University/Key Laboratory of Sustainable Utilization of Soil Resources in Commodity Grain Base of Jilin Province, Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, Changchun 130118, People's Republic of China
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15
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Wang CQ, Chen S, Huang DM, Huang QC, Tu MJ, Wu K, Liu YY. Human carcinogenic risk analysis and utilization of shale gas water-based drilling cuttings in road materials. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:12741-12768. [PMID: 36114966 PMCID: PMC9483462 DOI: 10.1007/s11356-022-23006-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 09/08/2022] [Indexed: 06/15/2023]
Abstract
Water-based drilling cuttings (WDC) generated during shale gas development will endanger human health and ecological security. The modern analytical techniques are used to analyze the organic pollutants in WDC, and the human health and ecological security risks of harmful pollutants in WDC under specific scenarios are evaluated. The results showed that the content of organic pollutants in WDC was evaluated by human health and safety risk assessment. The comprehensive carcinogenic risks of all exposure pathways of single pollutant benzo(a)anthracene, benzo(a)pyrene, benzo(k)fluoranthene, and indeno(1,2,3-cd)pyrene were acceptable. However, the cumulative carcinogenic risk of exposure to dibenzo(a,h)anthracene particles via skin exposure was not acceptable. It was considered that only dibenzo(a,h)anthracene had carcinogenic effect, and the risk control limit of dibenzo(a,h)anthracene in WDC was 1.8700 mg/kg by calculation. As well as, the "WDC-cement" gel composite structure was deeply analyzed, and the physical and chemical properties and mechanism of organic pollutants in cement solidified WDC were analyzed, which provided theoretical support for the study of WDC pavement cushion formula. Based on the above conclusions and combined with the actual site, by studying and adjusting the formula of WDC pavement cushion, the WDC pavement cushion was finally designed by 6% cement + 50% WDC + 44% crushed stone. The 7d unconfined compressive strength met the requirements of the Chinese standard "Technical Guidelines for Construction of Highway Roadbases" (JTG/T F20-2015). Also, the process route of WDC as road cushion product was sampled and analyzed. In addition, the leaching concentration of main pollutants all met the relevant standards of China. Therefore, this study can provide a favorable way for the efficient, safe, and environmentally friendly utilization of WDC, and ensure the ecological environment safety and human health safety of WDC in resource utilization.
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Affiliation(s)
- Chao-Qiang Wang
- School of Material Science and Engineering, Chongqing Jiaotong University, Chongqing, 400074, China
- Chongqing Haopan Energy Saving Technology Co., Ltd, Chongqing, 401329, China
- Chongqing Institute of Modern Construction Industry Development, Chongqing, 400066, China
| | - Shen Chen
- School of Civil Engineering, Chongqing Jiaotong University, Chongqing, 400074, China
| | - De-Ming Huang
- School of Material Science and Engineering, Chongqing Jiaotong University, Chongqing, 400074, China
| | - Qi-Cong Huang
- Chongqing Institute of Modern Construction Industry Development, Chongqing, 400066, China
| | - Min-Jie Tu
- CSCEC Strait Construction and Development Co., Ltd, Fuzhou, 350015, China
| | - Kai Wu
- Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, China.
| | - Yan-Yan Liu
- School of Material Science and Engineering, Chongqing Jiaotong University, Chongqing, 400074, China
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16
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Liu R, Wang JX, Yang WD. Hierarchical Porous Heteroatoms-Co-Doped Activated Carbon Synthesized from Coconut Shell and Its Application for Supercapacitors. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3504. [PMID: 36234631 PMCID: PMC9565498 DOI: 10.3390/nano12193504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 10/03/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
Coconut husk biomass waste was used as the carbon precursor to develop a simple and economical process for the preparation of hierarchical porous activated carbon, and the electrochemical properties of the electrode material were explored. The important process variables of carbonization, the weight ratios of the coconut shell/KOH, the amount of source dopant, and the carbonization temperature were investigated in order to reveal the influence of the as-obtained microporous/mesoporous/macroporous hierarchical porous carbon materials on the powder properties. Using a BET specific surface area analyzer, Raman analysis, XPS and SEM, surface morphology, pore distribution and specific surface area of the hierarchical porous carbon materials are discussed. The results show that the as-prepared N-, S- and O-heteroatom-co-doped activated carbon electrode was manufactured at 700 °C for electrochemical characteristics. The electrochemical behavior has the characteristics of pseudo-capacitance, and could reach 186 F g-1 at 1 A g-1 when measured by the galvanostatic charge-discharge (GCD) test. After 7000 cycles of the charge-discharge test, the initial capacitance value retention rate was 95.6%. It is predicted that capacitor materials made when using coconut shell as a carbon source will have better energy storage performance than traditional carbon supercapacitors.
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Affiliation(s)
- Rui Liu
- Center of Pharmaceutical Engineering and Technology, School of Pharmacy, Harbin University of Commerce, Harbin 150076, China
| | - Jing-Xuan Wang
- Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 80778, Taiwan
| | - Wein-Duo Yang
- Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 80778, Taiwan
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17
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Shen Y, Chen L. Catalytic pyrolysis of cellulose with biochar modified by Ni-Co-Mn cathode material recovered from spent lithium-ion battery. CHEMOSPHERE 2022; 305:135430. [PMID: 35772519 DOI: 10.1016/j.chemosphere.2022.135430] [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: 04/20/2022] [Revised: 06/16/2022] [Accepted: 06/18/2022] [Indexed: 06/15/2023]
Abstract
In this study, we investigated the recycling of Ni-Co-Mn cathode materials from spent LIBs by an acid leaching process using H3PO4 and HCl. The leaching liquor was then used to modify the biochar applied during the catalytic pyrolysis of the biomass. The addition of char catalysts decreased the maximum decomposition rate and shifted it to a lower temperature. Accordingly, the activation energy (Ea) of cellulose pyrolysis decreased from 140.86 kJ/mol to 83.55 kJ/mol (char-P) and 89.42 kJ/mol (char-Cl). The char catalysts enhanced the transformation of the large-molecule components to small-molecule gases during cellulose pyrolysis. The addition of both char-P and char-Cl decreased the anhydrosugar content and increased the hydrocarbon content, suggesting their high catalytic activities in converting anhydrosugars to hydrocarbons (e.g., long-chain alkanes). The anhydrosugar content decreased from 17.8% to 11.1%, while the furan content increased from 5.1% to 15.2% with the addition of char-P. The addition of char-Cl resulted in a lower content of furans (4.8%) and a higher content of hydrocarbons (40.1%), mostly because of the increase in alkanes and aromatic compounds. Therefore, these char catalysts could be used for biomass pyrolysis in terms of activation energy reduction and upgrading the quality of the product. This win-win pyrolysis process is a promising pathway for the co-valorization of the cathode materials of spent LIBs and biomass waste.
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Affiliation(s)
- Yafei Shen
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, 210044, China.
| | - Liang Chen
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, 210044, China.
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18
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Yang WD, Wang JX, Wu YT, Chang HS, Ko HH. Preparatory Conditions Optimization and Characterization of Hierarchical Porous Carbon from Seaweed as Carbon-Precursor Using a Box-Behnken Design for Application of Supercapacitor. MATERIALS (BASEL, SWITZERLAND) 2022; 15:5748. [PMID: 36013884 PMCID: PMC9416258 DOI: 10.3390/ma15165748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 08/16/2022] [Accepted: 08/18/2022] [Indexed: 06/15/2023]
Abstract
This study has developed an environmentally friendly, simple, and economical process by utilizing seaweed as a carbon precursor to prepare a hierarchical porous carbon for the application of a supercapacitor. In the carbonization process, the design of experiment (DOE) technology is used to obtain the optimal preparatory conditions with the best electrochemical properties for the electrode materials of supercapacitors. Without using strong acid and alkali solution of the green process, NaCl is used as the pore structure proppant of seaweed (SW) for carbonization to obtain hierarchical porous carbon material to improve the pore size distribution and surface area of the material. In the experiment of SW activation, the interaction between factors has been explored by the response surface methodology (RSM) and Box-Behnken design, and the optimal conditions are found. The activated carbon with the specific surface area of 603.7 m2 g-1 and its capacitance reaching 110.8 F g-1 is successfully prepared. At a current density of 1 A g-1, the material still retains 95.4% of the initial capacitance after 10,000 cycles of stability testing. The hierarchical porous carbon material prepared by the design of experiment planning this green process has better energy storage properties than supercapacitors made of traditional carbon materials.
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Affiliation(s)
- Wein-Duo Yang
- Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 807, Taiwan
| | - Jing-Xuan Wang
- Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 807, Taiwan
| | - Yu-Tse Wu
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung City 807, Taiwan
| | - Hsun-Shuo Chang
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung City 807, Taiwan
| | - Horng-Huey Ko
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung City 807, Taiwan
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19
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Yu Q, Zou J, Peng G, Gao F, Gao Y, Fan G, Chen S, Lu L. A facile fabrication of ratiometric electrochemical sensor for sensitive detection of riboflavin based on hierarchical porous biochar derived from KOH-activated Soulangeana sepals. NANOTECHNOLOGY 2022; 33:445501. [PMID: 35878583 DOI: 10.1088/1361-6528/ac83c8] [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: 03/12/2022] [Accepted: 07/24/2022] [Indexed: 06/15/2023]
Abstract
Herein, a facile ratiometric electrochemical method was developed for sensitive sensing of riboflavin (RF) based on hierarchical porous biochar (HPB) modified electrode. In this sensing system, the reference paracetamol (PA) was directly added into electrolyte solution without the requirement of complex immobilization process. HPB derived from KOH-activated Soulangeana sepals displays hierarchical porous structure, high specific surface area and rich oxygen-containing functional groups, which is favorable for RF adsorption and enrichment. Besides, the excellent electronic conductivity and superior electrocatalytic activity of HPB can effectively promote the electrooxidation of RF. Moreover, the dual-signal strategy greatly improves the reproducibility and reliability of electrochemical detection. Based on the proposed ratiometric sensing platform, the sensor exhibits a wider linear range of 0.0007-10μM and a lower limit of detection of 0.2 nM. The method also presents good selectivity and has been applied to the determination of RF in milk samples with satisfactory results.
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Affiliation(s)
- Qi Yu
- College of Forestry, Jiangxi Agricultural University, East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration, Camphor Engineering Research Center of NFGA/Jiangxi Province, Nanchang 330045, People's Republic of China
- Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Jin Zou
- College of Forestry, Jiangxi Agricultural University, East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration, Camphor Engineering Research Center of NFGA/Jiangxi Province, Nanchang 330045, People's Republic of China
| | - Guanwei Peng
- Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Feng Gao
- Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Yansha Gao
- Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Guorong Fan
- College of Forestry, Jiangxi Agricultural University, East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration, Camphor Engineering Research Center of NFGA/Jiangxi Province, Nanchang 330045, People's Republic of China
| | - Shangxing Chen
- College of Forestry, Jiangxi Agricultural University, East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration, Camphor Engineering Research Center of NFGA/Jiangxi Province, Nanchang 330045, People's Republic of China
| | - Limin Lu
- College of Forestry, Jiangxi Agricultural University, East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration, Camphor Engineering Research Center of NFGA/Jiangxi Province, Nanchang 330045, People's Republic of China
- Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
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20
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Investigation of supercapacitor properties of chlorine-containing functional groups doped graphene electrodes. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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Recent Advances in Biomass Based Activated Carbon for Carbon Dioxide Capture - A Review. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.08.021] [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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22
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Smart preparation of microporous carbons from spent coffee grounds. Comprehensive characterization and application in explosives removal from water samples. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128889] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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23
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Chemical co-activated modified small mesoporous carbon derived from nature anthracite toward enhanced supercapacitive behaviors. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Zhou Y, Li Z, Ji L, Wang Z, Cai L, Guo J, Song W, Wang Y, Piotrowski AM. Facile preparation of alveolate biochar derived from seaweed biomass with potential removal performance for cationic dye. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118623] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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25
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Investigation on the Potential of Various Biomass Waste for the Synthesis of Carbon Material for Energy Storage Application. SUSTAINABILITY 2022. [DOI: 10.3390/su14052919] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
The metal–air battery (MAB) has been a promising technology to store energy, with its outstanding energy density, as well as safety features. Yet, the current material used as air cathode is costly and not easily available. This study investigated a few biomass wastes with good potential, including the oil palm empty fruit bunch and garlic peel, as well as the oil palm frond, to determine a sufficiently environmentally-safe, yet efficient, precursor to produce carbon material as an electro-catalyst for MAB. The precursors were carbonized at different temperatures (450, 600, and 700 °C) and time (30, 45, and 60 min) followed by chemical (KOH) activation to synthesize the carbon material. The synthesized materials were subsequently studied through chemical, as well as physical characterization. It was found that PF presented superior tunability that can improve electrical conductivity, due to its ability to produce amorphous carbon particles with a smaller size, consisting of hierarchical porous structure, along with a higher specific surface area of up to 777.62 m2g−1, when carbonized at 600 °C for 60 min. This paper identified that PF has the potential as a sustainable and cost-efficient alternative to carbon nanotube (CNT) as an electro-catalyst for energy storage application, such as MAB.
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Chen K, Ma D, Yu H, Zhang S, Seyler BC, Chai Z, Peng S. Biosorption of V(V) onto Lantana camara biochar modified by H 3PO 4: Characteristics, mechanism, and regenerative capacity. CHEMOSPHERE 2022; 291:132721. [PMID: 34743869 DOI: 10.1016/j.chemosphere.2021.132721] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 10/15/2021] [Accepted: 10/25/2021] [Indexed: 06/13/2023]
Abstract
Biochar has been widely recognized as an environmentally efficient adsorbent for removing heavy metals. However, considering the weak adsorption performance of the original biochar to the oxygen-containing anion, the adsorption of vanadium by biochar has rarely been investigated. This study proposes that H3PO4 activated biochar made from an invasive plant species growing near mines is a novel material to be investigated for V(V) recovery and reuse. As a noxious, invasive plant, Lantana camara L. (LC) has become widely naturalized around the world. Biochar was prepared from LC by pyrolysis at different conditions (200 °C, 350 °C, 500 °C, and 650 °C). The adsorption effect of biochar with and without P pretreatment on V(V) in aqueous solution was compared. The results show that biochar prepared from LC impregnated with H3PO4 (MLBC) had the highest adsorption capacity at 500 °C, and the maximal adsorption capacity fitted by Langmuir model was 77.38 mg g-1, which was considerably higher than that of untreated biochar (LBC, 5.89 mg g-1). The adsorption procedure was substantially fitted by the Langmuir isotherm and the pseudo-second-order kinetic. Additionally, the interaction of V(V) on MLBC is pH-dependent, and slightly acidic conditions are more favorable for adsorption. The characterization results indicated that electrostatic interaction, complexation reaction, and redox reaction were the primary mechanisms. After three cycles of adsorption, the final maximal adsorption capacity of MLBC remained at 76.03% of that of the virgin sample, demonstrating that MLBC had a recyclable capability to eliminate and restore V(V) from aqueous solutions.
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Affiliation(s)
- Kexin Chen
- College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan, 610059, China; State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu University of Technology, Chengdu, 610059, Sichuan, China
| | - Danni Ma
- College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan, 610059, China; State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu University of Technology, Chengdu, 610059, Sichuan, China
| | - Haoyang Yu
- College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan, 610059, China; State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu University of Technology, Chengdu, 610059, Sichuan, China
| | - Shan Zhang
- College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan, 610059, China; State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu University of Technology, Chengdu, 610059, Sichuan, China
| | - Barnabas C Seyler
- Department of Environment, College of Architecture and Environment, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Zimo Chai
- College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan, 610059, China
| | - Shuming Peng
- College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan, 610059, China; State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu University of Technology, Chengdu, 610059, Sichuan, China.
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Superior capacitive storage behavior of porous carbon electrode with high mass loading. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.10.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Pu Q, Wang Y, Wang X, Shao Z, Wen S, Wang J, Ning P, Lu S, Huang L, Wang Q. Biomass-derived carbon/MgO-Al2O3 composite with superior dynamic CO2 uptake for post combustion capture application. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101756] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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29
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Benjedim S, Romero-Cano LA, Hamad H, Bailón-García E, Slovák V, Carrasco-Marín F, Pérez-Cadenas AF. Synthesis of Magnetic Adsorbents Based Carbon Highly Efficient and Stable for Use in the Removal of Pb(II) and Cd(II) in Aqueous Solution. MATERIALS 2021; 14:ma14206134. [PMID: 34683725 PMCID: PMC8539804 DOI: 10.3390/ma14206134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 08/30/2021] [Accepted: 10/12/2021] [Indexed: 11/30/2022]
Abstract
In this study, two alternative synthesis routes for magnetic adsorbents were evaluated to remove Pb(II) and Cd(II) in an aqueous solution. First, activated carbon was prepared from argan shells (C). One portion was doped with magnetite (Fe3O4+C) and the other with cobalt ferrite (CoFe2O4+C). Characterization studies showed that C has a high surface area (1635 m2 g−1) due to the development of microporosity. For Fe3O4+C the magnetic particles were nano-sized and penetrated the material’s texture, saturating the micropores. In contrast, CoFe2O4+C conserves the mesoporosity developed because most of the cobalt ferrite particles adhered to the exposed surface of the material. The adsorption capacity for Pb(II) was 389 mg g−1 (1.88 mmol g−1) and 249 mg g−1 (1.20 mmol g−1); while for Cd(II) was 269 mg g−1 (2.39 mmol g−1) and 264 mg g−1 (2.35 mmol g−1) for the Fe3O4+C and CoFe2O4+C, respectively. The predominant adsorption mechanism is the interaction between -FeOH groups with the cations in the solution, which are the main reason these adsorption capacities remain high in repeated adsorption cycles after regeneration with HNO3. The results obtained are superior to studies previously reported in the literature, making these new materials a promising alternative for large-scale wastewater treatment processes using batch-type reactors.
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Affiliation(s)
- Safa Benjedim
- Carbon Materials Research Group, Department of Inorganic Chemistry, Faculty of Sciences, University of Granada, Av. Fuente Nueva s/n., 18071 Granada, Spain; (S.B.); (H.H.); (E.B.-G.); (F.C.-M.)
| | - Luis A. Romero-Cano
- Grupo de Investigación en Materiales y Fenómenos de Superficie, Departamento de Ciencias Biotecnológicas y Ambientales, Universidad Autónoma de Guadalajara, Av. Patria 1201, Zapopan 45129, Mexico
- Correspondence: (L.A.R.-C.); (A.F.P.-C.)
| | - Hesham Hamad
- Carbon Materials Research Group, Department of Inorganic Chemistry, Faculty of Sciences, University of Granada, Av. Fuente Nueva s/n., 18071 Granada, Spain; (S.B.); (H.H.); (E.B.-G.); (F.C.-M.)
- Fabrication Technology Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technology Application (SRTA-City), Alexandria 21934, Egypt
| | - Esther Bailón-García
- Carbon Materials Research Group, Department of Inorganic Chemistry, Faculty of Sciences, University of Granada, Av. Fuente Nueva s/n., 18071 Granada, Spain; (S.B.); (H.H.); (E.B.-G.); (F.C.-M.)
| | - Václav Slovák
- Department of Chemistry, Faculty of Science, University of Ostrava, 30, dubna 22, 702 00 Ostrava, Czech Republic;
| | - Francisco Carrasco-Marín
- Carbon Materials Research Group, Department of Inorganic Chemistry, Faculty of Sciences, University of Granada, Av. Fuente Nueva s/n., 18071 Granada, Spain; (S.B.); (H.H.); (E.B.-G.); (F.C.-M.)
| | - Agustín F. Pérez-Cadenas
- Carbon Materials Research Group, Department of Inorganic Chemistry, Faculty of Sciences, University of Granada, Av. Fuente Nueva s/n., 18071 Granada, Spain; (S.B.); (H.H.); (E.B.-G.); (F.C.-M.)
- Correspondence: (L.A.R.-C.); (A.F.P.-C.)
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Synthesis of heteroatom and metallic compound self-co-doped porous carbon derived from swine manure for supercapacitor electrodes and lead ion adsorbents. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.06.038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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31
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Xiang J, Mi Y, Luo B, Gong S, Zhou Y, Ma T. Evaluating the potential of KOH-modified composite biochar amendment to alleviate the ecotoxicity of perfluorooctanoic acid-contaminated sediment on Bellamya aeruginosa. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 219:112346. [PMID: 34022627 DOI: 10.1016/j.ecoenv.2021.112346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 05/09/2021] [Accepted: 05/12/2021] [Indexed: 06/12/2023]
Abstract
Modified composite biochar offers a cost-effective solution for the remediation of contaminated sediments; however, few studies have evaluated the effects of modified composite biochar amendment on the ecotoxicity of contaminated sediment based on benthic macroinvertebrates. A 21-day sediment toxicity test was conducted using the freshwater snail Bellamya aeruginosa to examine the intrinsic ecotoxicity of a novel KOH-modified composite biochar (KOH-CBC) and its efficacy for reducing the bioavailability, uptake, and ecotoxicity of perfluorooctanoic acid (PFOA). It was found that KOH-CBC is toxic to B. aeruginosa, which may be attributed to its high polycyclic aromatic hydrocarbons (PAHs) content and alkalinity. The addition of KOH-CBC to PFOA-contaminated sediments can markedly reduce the bioavailability and uptake of PFOA by more than 90% and 50%, respectively, and subsequently alleviate the toxicity of PFOA to B. aeruginosa by at least 30%. Increasing the KOH-CBC dosage is not beneficial for further mitigating the toxicity of PFOA-contaminated sediments. Our findings imply that KOH-CBC is a promising sorbent for the in-situ remediation of PFOA-contaminated sediments. Application of acidified KOH-CBC at a dosage of approximately 1-3% will be sufficient to control the ecotoxicity of PFOA; however, its long-term environmental effects should be further validated.
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Affiliation(s)
- Jing Xiang
- College of Biology and Environmental Sciences, Jishou University, Jishou 416000, People's Republic of China
| | - Ying Mi
- College of Biology and Environmental Sciences, Jishou University, Jishou 416000, People's Republic of China
| | - Benxiang Luo
- College of Biology and Environmental Sciences, Jishou University, Jishou 416000, People's Republic of China
| | - Shuangjiao Gong
- College of Biology and Environmental Sciences, Jishou University, Jishou 416000, People's Republic of China
| | - Yingru Zhou
- College of Biology and Environmental Sciences, Jishou University, Jishou 416000, People's Republic of China
| | - Taowu Ma
- College of Biology and Environmental Sciences, Jishou University, Jishou 416000, People's Republic of China.
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Effect of Mesopore Development on Butane Working Capacity of Biomass-Derived Activated Carbon for Automobile Canister. NANOMATERIALS 2021; 11:nano11030673. [PMID: 33803161 PMCID: PMC8001594 DOI: 10.3390/nano11030673] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/24/2021] [Accepted: 03/04/2021] [Indexed: 01/23/2023]
Abstract
Kenaf-derived activated carbons (AKC) were prepared by H3PO4 activation for automobile canisters. The microstructural properties of AKC were observed using Raman spectra and X-ray diffraction. The textural properties were studied using N2/77 K adsorption isotherms. Butane working capacity was determined according to the ASTM D5228. From the results, the specific surface area and total pore volume of the AKC was determined to be 1260–1810 m2/g and 0.68–2.77 cm3/g, respectively. As the activation time increased, the butane activity and retentivity of the AKC increased, and were observed to be from 32.34 to 58.81% and from 3.55 to 10.12%, respectively. The mesopore ratio of activated carbon increased with increasing activation time and was observed up to 78% at 973 K. This indicates that butane activity and retentivity could be a function not only of the specific surface area or total pore volume, but also of the mesopore volume fraction in the range of 2.8–3.8 nm and 5.5-6.5 nm of adsorbents, respectively. The AKC exhibit enhanced butane working capacity compared to commercial activated carbon with the high performance of butane working capacity due to its pore structure having a high mesopore ratio.
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Investigation of pyrolysis kinetics parameters and thermal behavior of thermochemically modified bagasse for bioenergy potential. SN APPLIED SCIENCES 2021. [DOI: 10.1007/s42452-021-04345-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
AbstractBiomass is considering a source of organic carbon, which can replace fossil resources by using pyrolysis process, therefore an efficient biomass thermal modification technology has been target of so much research. The objective of this work is to study the potential energy of sugarcane bagasse and thermochemically modified bagasse for bioenergy potential for use in heat generation and energy. The thermal analysis was conducted by powder-shaped exposure of the three study samples (SB, AC-1, and AC-2) at three heating rates of (5, 7.5 and 10 °C min−1), it was possible to identify three stages of thermal degradation and study some thermochemical reactions, using two iso-conversional models, Kissinger–Akahira–Sunose (KAS) and Ozawa–Flynn–Wall (OFW) to calculate some kinetic parameters, such as activation energy (Ea) and pre-exponential factor (A). First step was about the devolatilization of volatile matter, moisture, and other substances. Degradation of hemicellulose, cellulose and lignin were shown in a second step. Characterization analyzes, such as SEM–EDX and textural parameters of the samples, show the presence of carbon in samples SB and AC-1. Due to SEM analyzes, morphological differences between the samples are showing as AC-1 and AC-2 samples present a rougher shape with pores, on the other hand, SB sample show a fibrous shape. In conclusion, sugarcane bagasse and thermochemically modified bagasse, show very promising results, for future studies, such as for bioenergy potential.
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The Effect of Modifications of Activated Carbon Materials on the Capacitive Performance: Surface, Microstructure, and Wettability. JOURNAL OF COMPOSITES SCIENCE 2021. [DOI: 10.3390/jcs5030066] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this review, the efforts done by different research groups to enhance the performance of the electric double-layer capacitors (EDLCs), regarding the effect of the modification of activated carbon structures on the electrochemical properties, are summarized. Activated carbon materials with various porous textures, surface chemistry, and microstructure have been synthesized using several different techniques by different researchers. Micro-, meso-, and macroporous textures can be obtained through the activation/carbonization process using various activating agents. The surface chemistry of activated carbon materials can be modified via: (i) the carbonization of heteroatom-enriched compounds, (ii) post-treatment of carbon materials with reactive heteroatom sources, and (iii) activated carbon combined both with metal oxide materials dan conducting polymers to obtain composites. Intending to improve the EDLCs performance, the introduction of heteroatoms into an activated carbon matrix and composited activated carbon with either metal oxide materials or conducting polymers introduced a pseudo-capacitance effect, which is an additional contribution to the dominant double-layer capacitance. Such tricks offer high capacitance due to the presence of both electrical double layer charge storage mechanism and faradic charge transfer. The surface modification by attaching suitable heteroatoms such as phosphorus species increases the cell operating voltage, thereby improving the cell performance. To establish a detailed understanding of how one can modify the activated carbon structure regarding its porous textures, the surface chemistry, the wettability, and microstructure enable to enhance the performance of the EDLCs is discussed here in detail. This review discusses the basic key parameters which are considered to evaluate the performance of EDLCs such as cell capacitance, operating voltage, equivalent series resistance, power density, and energy density, and how these are affected by the modification of the activated carbon framework.
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Synthesis of multi-application activated carbon from oak seeds by KOH activation for methylene blue adsorption and electrochemical supercapacitor electrode. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2020.102958] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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Manikandan R, Raj CJ, Moulton SE, Todorov TS, Yu KH, Kim BC. High Energy Density Heteroatom (O, N and S) Enriched Activated Carbon for Rational Design of Symmetric Supercapacitors. Chemistry 2021; 27:669-682. [PMID: 32700787 DOI: 10.1002/chem.202003253] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Indexed: 11/10/2022]
Abstract
Carbon-based symmetric supercapacitors (SCs) are known for their high power density and long cyclability, making them an ideal candidate for power sources in new-generation electronic devices. To boost their electrochemical performances, deriving activated carbon doped with heteroatoms such as N, O, and S are highly desirable for increasing the specific capacitance. In this regard, activated carbon (AC) self-doped with heteroatoms is directly derived from bio-waste (lima-bean shell) using different KOH activation processes. The heteroatom-enriched AC synthesized using a pretreated carbon-to-KOH ratio of 1:2 (ONS@AC-2) shows excellent surface morphology with a large surface area of 1508 m2 g-1 . As an SC electrode material, the presence of heteroatoms (N and S) reduces the interfacial charge-transfer resistance and increases the ion-accessible surface area, which inherently provides additional pseudocapacitance. The ONS@AC-2 electrode attains a maximum specific capacitance (Csp ) of 342 F g-1 at a specific current of 1 Ag-1 in 1 m NaClO4 electrolyte at the wide potential window of 1.8 V. Moreover, as symmetric SCs the ONS@AC-2 electrode delivers a maximum specific capacitance (Csc ) of 191 F g-1 with a maximum specific energy of 21.48 Wh kg-1 and high specific power of 14 000 W kg-1 and excellent retention of its initial capacitance (98 %) even after 10000 charge/discharge cycles. In addition, a flexible supercapacitor fabricated utilizing ONS@AC-2 electrodes and a LiCl/polyvinyl alcohol (PVA)-based polymer electrolyte shows a maximum Csc of 119 F g-1 with considerable specific energy and power.
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Affiliation(s)
- Ramu Manikandan
- Department of Printed Electronics Engineering, Sunchon National University, 255, Jungang-ro, Suncheon-si, Jellanamdo, 57922, Republic of Korea
| | - C Justin Raj
- Department of Chemistry, Dongguk University-Seoul, Jung-gu, Seoul, 04620, Republic of Korea
| | - Simon E Moulton
- ARC Centre of Excellence for Electromaterials Science, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia.,Biomedical Engineering Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
| | - Todor Stoilo Todorov
- Department of Theory of Mechanisms and Machines, Faculty of Industrial Technology, Technical University of Sofia, Sofia, 1797, Bulgaria
| | - Kook Hyun Yu
- Department of Chemistry, Dongguk University-Seoul, Jung-gu, Seoul, 04620, Republic of Korea
| | - Byung Chul Kim
- Department of Printed Electronics Engineering, Sunchon National University, 255, Jungang-ro, Suncheon-si, Jellanamdo, 57922, Republic of Korea
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Şirazi M, Aslan S. Comprehensive characterization of high surface area activated carbon prepared from olive pomace by KOH activation. CHEM ENG COMMUN 2021. [DOI: 10.1080/00986445.2020.1864628] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Meltem Şirazi
- Department of Environmental Engineering, Faculty of Engineering, Fırat University, Elazığ, Turkey
| | - Sibel Aslan
- Department of Environmental Engineering, Faculty of Engineering, Fırat University, Elazığ, Turkey
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Zhong G, Xu S, Chao J, Fu X, Liao W, Xu Y, Liu Z, Cao Y. Biomass-Derived Nitrogen-Doped Porous Carbons Activated by Magnesium Chloride as Ultrahigh-Performance Supercapacitors. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c04173] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Guoyu Zhong
- Key Laboratory of Distributed Energy Systems of Guangdong Province, Department of Energy and Chemical Engineering, Dongguan University of Technology, Dongguan, Guangdong 523808, China
| | - Shurui Xu
- Key Laboratory of Distributed Energy Systems of Guangdong Province, Department of Energy and Chemical Engineering, Dongguan University of Technology, Dongguan, Guangdong 523808, China
| | - Jie Chao
- Key Laboratory of Distributed Energy Systems of Guangdong Province, Department of Energy and Chemical Engineering, Dongguan University of Technology, Dongguan, Guangdong 523808, China
| | - Xiaobo Fu
- Key Laboratory of Distributed Energy Systems of Guangdong Province, Department of Energy and Chemical Engineering, Dongguan University of Technology, Dongguan, Guangdong 523808, China
| | - Wenbo Liao
- Key Laboratory of Distributed Energy Systems of Guangdong Province, Department of Energy and Chemical Engineering, Dongguan University of Technology, Dongguan, Guangdong 523808, China
| | - Yongjun Xu
- Key Laboratory of Distributed Energy Systems of Guangdong Province, Department of Energy and Chemical Engineering, Dongguan University of Technology, Dongguan, Guangdong 523808, China
| | - Ziwu Liu
- Jiangsu Province Engineering Laboratory of High Efficient Energy Storage Technology and Equipment, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
| | - Yonghai Cao
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, Guangzhou, Guangdong 510640, China
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Gao Y, Yue Q, Gao B, Li A. Insight into activated carbon from different kinds of chemical activating agents: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 746:141094. [PMID: 32745853 DOI: 10.1016/j.scitotenv.2020.141094] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/11/2020] [Accepted: 07/18/2020] [Indexed: 05/12/2023]
Abstract
Activated carbon (AC) is an important material in various fields owing to its low cost, well-developed porosity, and favorable chemical stability. Key factors for the optimal synthesis of AC are the carbon precursors, activation pathways, activating agents, and design of the procedure parameters. So far, no case studies have reviewed the activating agents used during the chemical activation process. Accordingly, the present review provides a summary of recent research, highlighting the development of activating agents during the process of AC. Detailed lists of pore-forming mechanisms by various activating agents, including alkaline, acidic, neutral, and self-activating agents, have been systematically summarized. Furthermore, the effects of activating agents on the experimental procedures have also been established. Finally, a comprehensive discussion about the influences of activating agents on the physical and chemical properties of the resultant AC is included. The objective of this study is to reveal and distinguish the individual roles of different activating agents during AC synthesis.
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Affiliation(s)
- Yuan Gao
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China; National Marine Environmental Monitoring Center, Dalian 116023, PR China.
| | - Qinyan Yue
- Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China.
| | - Baoyu Gao
- Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China
| | - Aimin Li
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China
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Modified Activation Process for Supercapacitor Electrode Materials from African Maize Cob. MATERIALS 2020; 13:ma13235412. [PMID: 33261206 PMCID: PMC7731031 DOI: 10.3390/ma13235412] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 11/19/2020] [Accepted: 11/20/2020] [Indexed: 11/17/2022]
Abstract
In this work, African maize cobs (AMC) were used as a rich biomass precursor to synthesize carbon material through a chemical activation process for application in electrochemical energy storage devices. The carbonization and activation were carried out with concentrated Sulphuric acid at three different temperatures of 600, 700 and 800 °C, respectively. The activated carbon exhibited excellent microporous and mesoporous structure with a specific surface area that ranges between 30 and 254 m2·g-1 as measured by BET analysis. The morphology and structure of the produced materials are analyzed through Field Emission Scanning Electron Microscopy (FESEM), Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD), Boehm titration, X-ray Photoelectron Spectroscopy (XPS) and Raman Spectroscopy. X-ray photoelectron spectroscopy indicates that a considerable amount of oxygen is present in the materials. The functional groups in the activated carbon enhanced the electrochemical performance and improved the material's double-layer capacitance. The carbonized composite activated at 700 °C exhibited excellent capacitance of 456 F g-1 at a specific current of 0.25 A g-1 in 6 M KOH electrolyte and showed excellent stability after 10,000 cycles. Besides being a low cost, the produced materials offer good stability and electrochemical properties, making them suitable for supercapacitor applications.
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Moreno-Fernández G, Gómez-Urbano JL, Enterría M, Cid R, López del Amo JM, Mysyk R, Carriazo D. Understanding enhanced charge storage of phosphorus-functionalized graphene in aqueous acidic electrolytes. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136985] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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MnO2 nanosheets grown on N and P co-doped hollow carbon microspheres for high performance asymmetric supercapacitor. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136681] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Twigs-derived activated carbons via H 3PO 4/ZnCl 2 composite activation for methylene blue and congo red dyes removal. Sci Rep 2020; 10:14050. [PMID: 32820209 PMCID: PMC7441319 DOI: 10.1038/s41598-020-71034-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 08/04/2020] [Indexed: 11/08/2022] Open
Abstract
This work is aimed at evaluating the conversion of Pterocarpus indicus twigs into activated carbon via composite chemical activation for methylene blue and congo red dyes adsorption. The activated carbons were prepared by single-step chemical activation using zinc chloride and/or phosphoric acid at different mass impregnation ratios at 600 °C for 90 min. The activated carbons were characterized for textural properties and surface chemistry. The batch adsorption was investigated at different concentrations (5–1,000 mg/L), contact times (2–540 min) and temperatures (30–60 °C). Phosphoric acid-activated twigs carbon showed a high surface area of 1,445 m2/g with maximum methylene blue adsorption capacity of 438 mg/g. On the other hand, a composite-activated carbon yields a 217 mg/g of congo red removal. The adsorption data for both dyes fitted well with Langmuir and pseudo-second-order kinetics models, indicating the predominance of chemical adsorption through monolayer coverage of dye molecules on the homogenous surface of activated carbon. The thermodynamics properties of dye adsorption onto twigs-derived activated carbons indicated that the process is endothermic, spontaneous and favourable at high temperature. Overall, activated carbons derived from Pterocarpus indicus twigs could be effectively used for dye wastewater treatment.
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Parsimehr H, Ehsani A. Corn‐based Electrochemical Energy Storage Devices. CHEM REC 2020; 20:1163-1180. [DOI: 10.1002/tcr.202000058] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 07/15/2020] [Accepted: 07/16/2020] [Indexed: 11/09/2022]
Affiliation(s)
- Hamidreza Parsimehr
- Department of Chemistry Faculty of Science University of Qom Qom Iran
- Color and Surface Coatings Group Polymer Processing Department Iran Polymer and Petrochemical Institute (IPPI) Tehran Iran
| | - Ali Ehsani
- Department of Chemistry Faculty of Science University of Qom Qom Iran
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Rajabathar J, Sivachidambaram M, Vijaya JJ, Al-lohedan HA, Aldhayan DMD. Flexible Type Symmetric Supercapacitor Electrode Fabrication Using Phosphoric Acid-Activated Carbon Nanomaterials Derived from Cow Dung for Renewable Energy Applications. ACS OMEGA 2020; 5:15028-15038. [PMID: 32637776 PMCID: PMC7330913 DOI: 10.1021/acsomega.0c00848] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 06/09/2020] [Indexed: 05/09/2023]
Abstract
Porous-activated carbon (PAC) materials have been playing a vital role in meeting the challenges of the ever-increasing demand for alternative clean and sustainable energy technologies. In the present scenario, a facile approach is suggested to produce hierarchical PAC at different activation temperatures in the range of 600 to 900 °C by using cow dung (CD) waste as a precursor, and H3PO4 is adopted as the nonconventional activating agent to obtain large surface area values. The as-prepared cow dung-based PAC (CDPAC) is graphitic in nature with mixed micro- and mesoporous textures. High-resolution scanning electron microscopy depicts the morphology of CDPAC as nanoporous structures with a uniform arrangement. High-resolution transmission electron microscopy reveals spherical carbon dense nanoparticles with dense tiny spherical carbon particles. N2 adsorption-desorption isotherms show a very high specific surface area of 2457 m2/g for the CDPAC 9 (CD 9) sample with a large pore volume of 1.965 cm3/g. Electrochemical measurements of the CD 9 sample show a good specific capacitance (C s) of 347 F/g at a lower scan rate (5 mV/s) with improved cyclic stability, which is run up to 5000 cycles at a low current density (0.5 A/g). Hence, we choose an activated carbon prepared at 900 °C to fabricate the modified electrode material. In this regard, a flexible type symmetric supercapacitor device was fabricated, and the electrochemical test results show a supercapacitance value (C s) of 208 F/g.
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Affiliation(s)
- Jothi
Ramalingam Rajabathar
- Surfactant
Research Chair, Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Manoharan Sivachidambaram
- Catalysis
Nanomaterials and Research Laboratory, Department of Chemistry, Loyola College, Chennai 600034, Tamilnadu, India
- Department
of Chemistry, Theivanai Ammal College for
Women, Villupuram 605602, Tamilnadu, India
| | - J. Judith Vijaya
- Catalysis
Nanomaterials and Research Laboratory, Department of Chemistry, Loyola College, Chennai 600034, Tamilnadu, India
- . Fax: +91-44-28175566
| | - Hamad A. Al-lohedan
- Surfactant
Research Chair, Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Dhaifallah M. D. Aldhayan
- Surfactant
Research Chair, Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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Benjedim S, Romero-Cano LA, Pérez-Cadenas AF, Bautista-Toledo MI, Lotfi EM, Carrasco-Marín F. Removal of emerging pollutants present in water using an E-coli biofilm supported onto activated carbons prepared from argan wastes: Adsorption studies in batch and fixed bed. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 720:137491. [PMID: 32145619 DOI: 10.1016/j.scitotenv.2020.137491] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 02/20/2020] [Accepted: 02/20/2020] [Indexed: 05/26/2023]
Abstract
In order to improve the removal rates of paracetamol and amoxicillin present in water, activated carbons prepared from argan waste were designed as a support for a biofilm-based on E. coli yielding microporous materials with high surface areas, in such a way that the biofilm support could be made homogeneously on the internal and external surface of the material. Adsorption studies without the presence of the biofilm showed rapid kinetics with adsorption constants kPCT = 0.06 and kAMX = 0.007 min-1. The adsorption isotherms could be described by the Langmuir isotherm model reaching a maximum adsorption capacity of qPCT = 502 and qAMX = 319 mg g-1. In contrast, the results obtained for the materials that support the biofilm showed slow kinetics (kPCT = 0.007 and kAMX = 0.003 min-1) and a remarkable change in the shape of the adsorption isotherms, since the experimental data are better represented by a combined Langmuir-Freundlich model, in which three important stages are observed: (i) In a first stage, adsorption is carried out in those spaces available after supporting the biofilm in the surface of the ACs. Once these spaces have been saturated, a second stage (ii) is present with an exponential behavior typical of the Freundlich isotherm, attributed to the adsorption of the pharmaceutical compounds in the biofilm, Finally a third stage is observed (iii) where the asymptotic behavior typical of the saturation of the adsorbent according to the Langmuir model is already appreciated (qPCT = 504 and qAMX = 465 mg g-1).
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Affiliation(s)
- Safa Benjedim
- Research Group in Carbon Materials, Inorganic Chemistry Department, Faculty of Sciences, University of Granada, Campus Fuente Nueva s/n. 18071 Granada, Spain; Laboratory of Spectroscopy, Molecular Modeling, Materials, Nanomaterials, Water and Environment, Environmental Materials Team, ENSET, Mohammed V University in Rabat, Morocco
| | - Luis A Romero-Cano
- Grupo de Investigación en Materiales y Fenómenos de Superficie, Departamento de Ciencias Biotecnológicas y Ambientales, Universidad Autónoma de Guadalajara, Av. Patria 1201, C.P. 45129 Zapopan, Jalisco. Mexico
| | - Agustín F Pérez-Cadenas
- Research Group in Carbon Materials, Inorganic Chemistry Department, Faculty of Sciences, University of Granada, Campus Fuente Nueva s/n. 18071 Granada, Spain.
| | - Ma Isidora Bautista-Toledo
- Research Group in Carbon Materials, Inorganic Chemistry Department, Faculty of Sciences, University of Granada, Campus Fuente Nueva s/n. 18071 Granada, Spain
| | - El Mostapha Lotfi
- Laboratory of Spectroscopy, Molecular Modeling, Materials, Nanomaterials, Water and Environment, Environmental Materials Team, ENSET, Mohammed V University in Rabat, Morocco
| | - Francisco Carrasco-Marín
- Research Group in Carbon Materials, Inorganic Chemistry Department, Faculty of Sciences, University of Granada, Campus Fuente Nueva s/n. 18071 Granada, Spain
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Supercapacitive charge storage properties of porous carbons derived from pine nut shells. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114140] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Hamad H, Bailón-García E, Morales-Torres S, Carrasco-Marín F, Pérez-Cadenas AF, Maldonado-Hódar FJ. Functionalized Cellulose for the Controlled Synthesis of Novel Carbon-Ti Nanocomposites: Physicochemical and Photocatalytic Properties. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E729. [PMID: 32290411 PMCID: PMC7221653 DOI: 10.3390/nano10040729] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 04/07/2020] [Accepted: 04/07/2020] [Indexed: 11/16/2022]
Abstract
Carbon-Ti nanocomposites were prepared by a controlled two-step method using microcrystalline cellulose as a raw material. The synthesis procedure involves the solubilization of cellulose by an acid treatment (H3PO4 or HNO3) and the impregnation with the Ti precursor followed of a carbonization step at 500 or 800 °C. The type of acid treatment leads to a different functionalization of cellulose with phosphorus- or oxygen-containing surface groups, which are able to control the load, dispersion and crystalline phase of Ti during the composite preparation. Thus, phosphorus functionalities lead to amorphous carbon-Ti composites at 500 °C, while TiP2O7 crystals are formed when prepared at 800 °C. On the contrary, oxygenated groups induce the formation of TiO2 rutile at an unusually low temperature (500 °C), while an increase of carbonization temperature promotes a progressive crystal growth. The removal of Orange G (OG) azo dye in aqueous solution, as target pollutant, was used to determine the adsorptive and photocatalytic efficiencies, with all composites being more active than the benchmark TiO2 material (Degussa P25). Carbon-Ti nanocomposites with a developed micro-mesoporosity, reduced band gap and TiO2 rutile phase were the most active in the photodegradation of OG under ultraviolet irradiation.
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Affiliation(s)
- Hesham Hamad
- Carbon Materials Research Group, Department of Inorganic Chemistry, Faculty of Sciences, University of Granada, Avda, Fuente Nueva, s/n. ES18071 Granada, Spain; (H.H.); (E.B.-G.); (F.C.-M.); (A.F.P.-C.); (F.J.M.-H.)
- Fabrication Technology Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technology Applications (SRTA-City), New Borg El-Arab City 21934, Egypt
| | - Esther Bailón-García
- Carbon Materials Research Group, Department of Inorganic Chemistry, Faculty of Sciences, University of Granada, Avda, Fuente Nueva, s/n. ES18071 Granada, Spain; (H.H.); (E.B.-G.); (F.C.-M.); (A.F.P.-C.); (F.J.M.-H.)
| | - Sergio Morales-Torres
- Carbon Materials Research Group, Department of Inorganic Chemistry, Faculty of Sciences, University of Granada, Avda, Fuente Nueva, s/n. ES18071 Granada, Spain; (H.H.); (E.B.-G.); (F.C.-M.); (A.F.P.-C.); (F.J.M.-H.)
| | - Francisco Carrasco-Marín
- Carbon Materials Research Group, Department of Inorganic Chemistry, Faculty of Sciences, University of Granada, Avda, Fuente Nueva, s/n. ES18071 Granada, Spain; (H.H.); (E.B.-G.); (F.C.-M.); (A.F.P.-C.); (F.J.M.-H.)
| | - Agustín F. Pérez-Cadenas
- Carbon Materials Research Group, Department of Inorganic Chemistry, Faculty of Sciences, University of Granada, Avda, Fuente Nueva, s/n. ES18071 Granada, Spain; (H.H.); (E.B.-G.); (F.C.-M.); (A.F.P.-C.); (F.J.M.-H.)
| | - Francisco J. Maldonado-Hódar
- Carbon Materials Research Group, Department of Inorganic Chemistry, Faculty of Sciences, University of Granada, Avda, Fuente Nueva, s/n. ES18071 Granada, Spain; (H.H.); (E.B.-G.); (F.C.-M.); (A.F.P.-C.); (F.J.M.-H.)
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Lin Y, Chen Z, Yu C, Zhong W. Facile synthesis of high nitrogen-doped content, mesopore-dominated biomass-derived hierarchical porous graphitic carbon for high performance supercapacitors. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.135615] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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50
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Yumak T, Yakaboylu GA, Oginni O, Singh K, Ciftyurek E, Sabolsky EM. Comparison of the electrochemical properties of engineered switchgrass biomass-derived activated carbon-based EDLCs. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124150] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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