Review
Engineering, Environmental
Naomi A. Bury, Kathryn A. Mumford, Geoffrey W. Stevens
Summary: Electrochemical regeneration of Granular Activated Carbon is an efficient method for removing organic contaminants from water. By controlling critical operating parameters and understanding the regeneration mechanisms, optimal operating conditions can be achieved, enhancing the commercial prospects of these technologies.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Green & Sustainable Science & Technology
P. Marquez, A. Benitez, A. F. Chica, M. A. Martin, A. Caballero
Summary: This study proposes a method to recycle and reuse exhausted GACs in wastewater treatment plants. By conducting thermal regeneration in different atmospheres, the GACs can be regenerated with optimized textural properties. The results show that the regeneration cost is lower in an oxidizing atmosphere, and the regenerated GACs have appropriate characteristics for reuse in wastewater treatment plants.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Chemical
Thayset Marino Peacok, Harold Crespo Sariol, Jan Yperman, Angel Sanchez Roca, Robert Carleer, Jeamichel Puente Torres, Peter Adriaensens, Grazyna Gryglewicz, Guy Reggers, Jan Czech, Dries Vandamme, Liset Salomon Garcia
Summary: A new non-invasive methodology based on infrared thermography was used to evaluate the exhaustion level of granular activated carbon in an industrial water treatment filter. Results showed a correlation between surface temperature, surface thermal density parameters, and exhaustion level, making the method effective for GAC management in water treatment.
CHEMICAL ENGINEERING SCIENCE
(2021)
Article
Chemistry, Physical
J. Ehren Eichler, James N. Burrow, Yu Wang, David C. Calabro, C. Buddie Mullins
Summary: Through studying the precursor properties and potassium activation of porous carbons, it was found that different N contents can affect the surface chemistry and porosity of carbons, thereby controlling the specific surface area and nitrogen content of the carbon. Additionally, the results showed a complex interplay of various known reaction mechanisms in the formation of porous carbons.
Article
Green & Sustainable Science & Technology
Ewa Okoniewska
Summary: Dyes are widely used in various industries, but the wastewater they produce poses a threat to the environment due to its toxic effects. Common methods for removing dyes from wastewater, such as flotation and filtration, often result in the production of large amounts of sludge. Activated carbon adsorption is an effective method that can remove dyes without generating significant waste.
Article
Chemistry, Multidisciplinary
Panuwat Lawtae, Shintaroh Nagaishi, Chaiyot Tangsathitkulchai, Shinichiroh Iwamura, Shin R. Mukai
Summary: High-surface-area microporous-mesoporous carbons were obtained from carbon gel using the OTA method, which involved air oxidation, thermal treatment, and activation. Mesopores were formed both inside and outside the carbon gel nanoparticles, while micropores were mainly created within the nanoparticles. The OTA method led to a greater increase in pore volume and BET surface area compared to conventional CO2 activation, resulting in improved porous properties of the activated carbon gel.
Article
Electrochemistry
Akter Hossain Reaz, Hasi Rani Barai, Shimul Saha, Keya Chowdhury, Maharun Negar Mojumder, Shakhawat Hossain Firoz, Al-Nakib Chowdhury, Sang Woo Joo, Chanchal Kumar Roy
Summary: Hydrocarbon based waste materials are being used to generate activated carbons with high potential for supercapacitor applications. Carbon materials collected from diesel engine exhaust can be treated with acids to produce self-doped porous activated carbons with large specific surface areas. These materials show high specific capacitance and energy density in various electrolytes, demonstrating excellent stability in charge-discharge cycles.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Applied
Jelena Rupar, Danica Bajuk-Bogdanovic, Maja Milojevic-Rakic, Jugoslav Krstic, Kush Upadhyay, Nemanja Gavrilov, Aleksandra Janosevic Lezaic
Summary: This study introduces a novel electrochemical method to prepare N-doped alginate-based carbon precursors with monodispersed zinc ions, showcasing their unique physical and chemical properties. The obtained carbon materials were evaluated comprehensively and showed excellent surface area and porosity evolution characteristics, highlighting their potential as electrode materials for supercapacitors. The controlled dispersion of zinc and N-doping with rivanol generated bio-based materials with outstanding capacitance and stability, indicating promising prospects for engineering future supercapacitors.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Physical
Ghazanfar Nazir, Adeela Rehman, Soo-Jin Park
Summary: This study presents a single-step synthesis method for the preparation of self-activated heteroatom-doped carbon cryogels. The N-doped cryogels exhibit a highly porous structure, abundant narrow micropores, and high CO2 adsorption performance.
Article
Energy & Fuels
Camille Roiron, Caroline Celle, Pierre-Andre Jacques, Marie Heitzmann, Jean-Pierre Simonato
Summary: This study reports on Pt-free catalysts prepared through an Fe-N-doped carbon cryogel synthesis process. By tuning selected parameters, various new structures with different catalytic activities were synthesized and characterized, showing promising catalytic activity for the ORR.
Article
Engineering, Chemical
Zhipeng Qie, Lijie Wang, Fei Sun, Huan Xiang, Hua Wang, Jihui Gao, Guangbo Zhao, Xiaolei Fan
Summary: A simple method was developed to tune the porosity of coal-derived activated carbons, which provided a model adsorbent system to investigate the volumetric CO2 adsorption performance. The experimental results showed that activated carbons with microporous and ultra-microporous structures exhibited the highest CO2 adsorption capacity, and ultra-microporous activated carbons with high packing density had the highest normalized capacity with respect to packing volume.
FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING
(2022)
Article
Thermodynamics
Sergio Acevedo, Liliana Giraldo, Juan Carlos Moreno-Pirajan
Summary: This research conducted a calorimetric evaluation of activated carbon-type adsorbent solids prepared by chemical activation of African palm shells with Fe(NO3)(3) and Cu(NO3)(2) salts. The immersion enthalpy values of porous materials varied with different immersion liquids, chemical agents, and concentrations. The BET areas and pore volumes of the obtained adsorbent solids increased proportionally to the increase in immersion enthalpy values, showing variations in textural and chemical characteristics of porous solids.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Energy & Fuels
Raphael Rodrigues, Mikaela S. Santos, Renan S. Nunes, Wagner A. Carvalho, Georgia Labuto
Summary: Chemically activated carbons derived from yeast biomass waste were modified with HNO3 to enhance surface acid features for application as catalysts in solvent-free solketal production, achieving high glycerol conversion rates and selectivity towards solketal with remarkable efficiency in consecutive runs. Characterization of the activated carbons was done through various techniques including N2 adsorption/desorption, thermal analysis, elemental analysis, surface functional group titration (Boehm titration), X-ray diffraction, and Raman spectroscopy.
Article
Green & Sustainable Science & Technology
M. Vorokhta, J. Novakova, M. Dopita, I. Khalakhan, V. Kopecky, M. Svabova
Summary: This study demonstrates that the microporosity of three-dimensionally ordered micromesoporous carbon (3DOmm) can be increased by physical activation, leading to improved CO2 capture performance. The activated 3DOmm carbon exhibits a highly porous amorphous structure with increased micropore and mesopore volumes and a higher specific surface area. Furthermore, the activated 3DOmm carbon shows excellent CO2 adsorption performance over a wide pressure range, with fast kinetics and high selectivity for CO2 over N2.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Chemistry, Physical
Lotfi Sellaoui, Amira Yazidi, Sonia Taamalli, Adrian Bonilla-Petriciolet, Florent Louis, Abderrahman El Bakali, Michael Badawi, Eder C. Lima, Diana R. Lima, Zhuqi Chen
Summary: Statistical physics calculations were used to analyze and interpret the adsorption of 3-aminophenol and resorcinol on activated carbon obtained from avocado seed through microwave heating and ZnCl2 activation. The results showed that the adsorption was endothermic and the saturation adsorption capacities were highest at 50 degrees Celsius. The calculated adsorption energies ranged from 22.3 to 31.2 kJ/mol, indicating a physical adsorption mechanism.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Environmental Sciences
E. S. P. Prado, F. S. Miranda, A. R. Marquesi, A. Essiptchouk, G. A. Labat Amaral, A. S. da Silva Sobrinho, G. Petraconi, M. R. Baldan
Summary: This study investigates the production of clean fuel gas and carbon black from coal tar pitch (CTP) using a plasma reactor equipped with a direct-current plasma torch. The composition of the gas produced and energy costs were estimated for the CTP pyrolysis and gasification processes using oxygen and water vapor as oxidants. The results show that hydrogen, carbon monoxide, and carbon dioxide are the main gaseous compounds obtained in these processes. The CB produced consists of well-defined spherical particles composed primarily of carbon. The thermal plasma system demonstrates high efficiency in converting CTP into valuable products.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Engineering, Chemical
E. S. P. Prado, A. Essiptchouk, G. Amaral-Labat, A. S. da Silva Sobrinho, G. Petraconi, M. R. Baldan, F. S. Miranda
Summary: This paper presents the development and experimental testing of a DC plasma torch designed with two vortices chambers for thermal plasma-assisted processing. Different plasma working gases were used, including steam. The experimental results were discussed with thermodynamic calculations and numerical simulation to predict the gas composition and properties of carbon nanomaterials.
PLASMA CHEMISTRY AND PLASMA PROCESSING
(2023)
Article
Polymer Science
Bengang Zhang, Mathieu Petrissans, Anelie Petrissans, Antonio Pizzi, Baptiste Colin
Summary: The hydrophobicity of heat-treated beech and fir wood at different temperatures (120℃ to 300℃) was defined using the Whilhelmy method, wood thermal properties (TG/DTG), infrared spectroscopy, etc. The hydrophobic character obtained by the heat treatment remains constant even when exposed to wet conditions for 1 week. Heat-induced wood hydrophobation is mainly caused by furanic moieties produced from heat-induced degradation of hemicelluloses, which is triggered by the acid environment generated by the hydrolysis of hemicellulose acetyl groups.
Article
Chemistry, Multidisciplinary
Javier Quilez-Bermejo, Sergio Garcia-Dali, Ayoub Daouli, Andrea Zitolo, Rafael L. S. Canevesi, Melanie Emo, Maria T. Izquierdo, Michael Badawi, Alain Celzard, Vanessa Fierro
Summary: In this study, single atoms and nanoclusters of Fe, Ni, Co, Cu, and Mn were embedded in a well-defined C1N1-type material with internal cavities of approximately 0.6 nm. The nucleation of different metal nanoclusters was achieved by forming metal-nitrogen bonds on four N atoms. After pyrolysis, TM@CNx-type structures were obtained, where TM represents the transition metal and x<1. Fe@CNx and Co@CNx showed promising performance in oxygen reduction reaction and hydrogen evolution reaction respectively, with a Pt-like performance, while Ni@CNx exhibited the highest activity in oxygen evolution reaction (OER) with an E-OER of 1.59 V versus RHE, surpassing the commercial IrO2 (E-OER = 1.72 V). This systematic and benchmarking study provides a basis for the future design of advanced multi-functional electrocatalysts by modulating and combining the metallic nature of nanoclusters and single atoms.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Helene Tonnoir, Da Huo, Carine Davoisne, Alain Celzard, Vanessa Fierro, Damien Saurel, Mimoun El Marssi, Manal Benyoussef, Philippe Meunier, Raphael Janot
Summary: This study focuses on investigating the sodiation mechanism of non-graphitizing carbons (NGC), and reveals that increasing the pyrolysis temperature leads to NGCs with a more ordered structure and developed closed microporosity. In situ Raman spectroscopy shows that the intercalation of Na+ between the graphene layers occurs mainly during the sloping part of the galvanostatic profile, while the plateau at low voltage can be associated with the filling of micropores with sodium.
Article
Polymer Science
Bengang Zhang, Xinyi Chen, Antonio Pizzi, Mathieu Petrissans, Stephane Dumarcay, Anelie Petrissans, Xiaojian Zhou, Guanben Du, Baptiste Colin, Xuedong Xi
Summary: Condensed tannin copolymerized with hyperbranched tris(2-aminoethyl)amine-urea to form a particleboard thermosetting adhesive without aldehydes, meeting the relevant standards for internal bond strength. The adhesive can cure effectively at a low temperature of 180 degrees C and has zero formaldehyde emission. The tannin acts as a cross-linking agent, enhancing the overall bonding performance. The chemical analysis reveals that substitution and rare reaction occur between tannin and the amine and amide groups.
Article
Polymer Science
Pierre Delliere, Antonio Pizzi, Nathanael Guigo
Summary: Poly(furfuryl alcohol) is a thermostable biobased thermoset that can be modified through the opening of the furan ring and derivatization. This study compares the structural differences between PFA prepared in neat conditions and PFA prepared in aqueous conditions. The results show that the aqueous PFA has a more heterogeneous structure with the presence of ketonic derivatives, while the neat PFA exhibits terminal lactones instead of aldehydes.
Article
Environmental Sciences
Abderrezzaq Benalia, Walid Chaibraa, Sara Djeghar, Kerroum Derbal, Amel Khalfaoui, Asma Mahfouf, Raouf Bouchareb, Antonio Panico, Antonio Pizzi
Summary: This study reveals the potential of proteins extracted from oak leaves to treat drinking water and industrial oily wastewater. The analysis of oak leaves confirmed the presence of proteins acting as bio-coagulants. The experimental design identified the optimal operating parameters. The study demonstrated the effectiveness of oak leaves proteins in reducing turbidity and pollutants in both drinking water and industrial oily wastewater.
Article
Physics, Applied
Pauline Blyweert, Alexander Zharov, Darya Meisak, Artyom Plyushch, Jan Macutkevic, Juras Banys, Vanessa Fierro, Alain Celzard
Summary: 3D-printed carbon structures filled with BaTiO3 nanoparticles were studied for their properties in low and microwave frequency ranges. These structures exhibited high electrical conductivity in the low-frequency range and excellent dielectric properties in the microwave range. The electrical transport was thermally activated and attributed to electron transport through various defects. The investigated structures showed attractive electromagnetic properties in the microwave range, with high absorption rates for BaTiO3-filled structures.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Physical
Marco Pelanconi, Pauline Blyweert, Giovanni Bianchi, Vincent Nicolas, Davide Vigano, Samuele Bottacin, Vanessa Fierro, Alain Celzard, Alberto Ortona
Summary: This study focuses on the design, additive manufacturing, and characterization of porous carbon-based structures with outstanding mechanical properties and oxidation resistance, combined with good electrical and thermal conductivity. Graphite-carbon black powders were 3D printed using binder jetting to create computational models of three different topologies and geometric porosities. The parts were then densified using infiltration and pyrolysis with furan resin. The resulting composite materials exhibit excellent mechanical properties and high oxidation resistance, making them suitable for applications such as Joule resistors and seasonal thermal storage.
Article
Chemistry, Physical
Sergio Garcia-Dali, Javier Quilez-Bermejo, Jimena Castro-Gutierrez, Niki Baccile, Maria T. Izquierdo, Alain Celzard, Vanessa Fierro
Summary: This study presents efficient electrodes for the hydrogen evolution reaction (HER) based on low-cost and metal-free carbon catalysts. Phytic acid, a biosourced molecule containing carbon (C) and phosphorus (P), is used as a precursor to produce P-doped carbon materials. The conversion of P-O-type groups into P-C-type species is crucial for the catalytic activity of P-doped carbon materials, with P-C-type groups being the key factor in the electrocatalytic activity.
Review
Forestry
Dominika Janiszewska-Latterini, Antonio Pizzi
Summary: This review aims to investigate the application of liquefied wood products in reducing the environmental impact of particleboard manufacturing. The findings reveal that the application of liquefied wood products does not significantly affect the mechanical properties and formaldehyde content of particleboards, and different feedstock types show similar effects on board properties. However, there is a limited number of studies in this field, and further research is needed to determine the outcomes and benefits of using liquefied wood products on an industrial scale.
CURRENT FORESTRY REPORTS
(2023)
Article
Materials Science, Paper & Wood
Godwin Fonyuy Banyuy, Antonio Pizzi, Jean Gaston Tamba, Achille Bernard Biwole, Benoit Ndiwe, Jean Jalin Eyinga Biwole, Fopah-Lele Armand, Evariste Fongnzossie Fedoung, Joseph Zobo Mfomo
Summary: This study aimed to determine the quantity, nature, and role of extracts during the sorption behavior of two Central African hardwood species. The results showed that acetone extracts had a significant effect on the hygroscopic nature of wood.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Article
Chemistry, Analytical
Claire Dazon, Sebastien Bau, Raphael Payet, Vanessa Fierro, Olivier Witschger
Summary: The relevance of dustiness methods in the evaluation of worker's exposure to nanomaterials and environmental risk is recognized. Current methods based on mass are recommended, but surface area is considered a better determinant of nanoparticle pulmonary toxicity. This study proposes a surface-based dustiness index to assess nanoparticulate matter, demonstrating its superiority over the conventional mass-based index in discrimination and impact on ranking. Further research is needed to support the inclusion of this proposal in European standards.
ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
(2023)