Article
Engineering, Environmental
Huiwen Zhang, Runhao Zhang, Wenya Li, Zhang Ling, Wen Shu, Jiangya Ma, Yujie Yan
Summary: This study combines energy utilisation of agricultural wastes with the adsorption of dimethoate from agricultural wastewater via hydrogen and biochar production using co-hydrothermal gasification. The results show that the feedstock of 3RH+1CM achieves the highest gas yield and hydrogen gasification efficiency, and the derived biochars have the highest adsorption capacity for dimethoate.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Applied
Qiaoyun Cheng, Minxing Huang, Ailing Xiao, Zhuoyan Xu, Xiaochu Chen, Yufeng Gao, Goubin Yu
Summary: Chitin-derived nitrogen-containing carbon microspheres exhibit excellent adsorption performance and stability in the analysis of neonicotinoid pesticide residues.
CARBOHYDRATE POLYMERS
(2021)
Article
Engineering, Chemical
Isabel Pestana da Paixao Cansado, Paulo Alexandre Mira Mourao, Jose Eduardo dos Santos Felix Castanheiro
Summary: This study examines the effects of regeneration treatments on adsorption-desorption cycles and the efficiency of different regeneration methods for activated carbon adsorbents in removing MCPA pesticides from wastewater. The results show that ethanol regeneration performs well in subsequent adsorption-desorption cycles.
Article
Chemistry, Physical
Silvia Escudero-Curiel, Marta Pazos, Angeles Sanroman
Summary: Pharmaceuticals and personal care products (PPCPs) pose harm to ecosystems and human health, and regulating discharges at wastewater treatment plants (WWTPs) has become a priority. This study evaluated the removal of Fluoxetine (FLX) through adsorption and regeneration cycles using NQ40 honeycomb 3D carbon aerogel as a high-capacity adsorbent. The regeneration process using Fenton and Fenton-like methods demonstrated the effectiveness of hydrogen peroxide in removing high concentrations of FLX.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Biochemistry & Molecular Biology
Marta Adame-Pereira, Carlos J. Duran-Valle, Carmen Fernandez-Gonzalez
Summary: A new adsorbent material was prepared by coating activated carbon with hydrothermal carbon derived from sucrose. The material exhibited different properties from the combination of the activated carbon and hydrothermal carbon, indicating the formation of a new material. It had a high specific surface area (1051.9 m(2) g(-1)) and slightly higher acidity than the starting activated carbon (p.z.c.-point of zero charge 8.71 vs. 9.09). The adsorption properties of a commercial carbon (Norit RX-3 Extra) were enhanced across a wide pH and temperature range. The monolayer capacity values according to Langmuir's model reached 588 mg g(-1) for the commercial product and 769 mg g(-1) for the new adsorbent.
Article
Environmental Sciences
Hong -Duck Ryu, Hyeyeol Han, Ji-Hyoung Park, Yong Seok Kim
Summary: This study investigates the occurrence of pesticides in Korean rivers and proposes an approach for their effective removal from pesticide wastewater. The study finds that many pesticides are not completely removed from wastewater and that wastewater influences the presence of pesticides in rivers.
Article
Engineering, Environmental
Li Tan, Jiangen Wang, Bihai Cai, Chengyin Wang, Zhimin Ao, Shaobin Wang
Summary: Disc-like nitrogen-rich porous carbon materials (HAT-Xs) were synthesized with different C/N ratios by controlling the synthesis temperature. Among them, HAT-650 synthesized at 650 degrees Celsius exhibited the highest adsorption capacity and excellent reusability for ethyl acetate, making it a promising adsorbent for industrial applications.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Shaoan Cheng, Pengfei Xie, Zhen Yu, Ruonan Gu, Wei Wu
Summary: Metal-organic frameworks (MOFs) derived metal oxides/porous carbon nanocomposites were used as efficient adsorbents to remove pollutants from wastewater. By introducing functional groups, the adsorption performance of the nanocomposites was significantly improved. This study focused on the preparation and testing of hydroxyl-modified zirconia/porous carbon nanocomposite (C-UiO-66-OH) as an adsorbent for the typical pollutant carbamazepine (CBZ). The results showed that C-UiO-66-OH had a much higher adsorption capacity compared to normal UiO-66, and the adsorption process was spontaneous and endothermic. The adsorbent could be easily regenerated using ethanol and DI water. Additionally, a membrane prepared by immobilizing C-UiO-66-OH into melamine foam with sodium alginate exhibited excellent removal efficiency and good regeneration for CBZ adsorption.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Ziyi Shen, Jie Jin, Jingjing Fu, Meng Yang, Feihu Li
Summary: The co-occurrence of arsenic and fluoride in water can lead to health concerns. Magnetic biochars with aluminum and magnesium oxides show enhanced adsorption capacity for both AsV and F-.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Miao Lv, Dongyi Li, Zhaohan Zhang, Bruce E. Logan, Guohong Liu, Muchen Sun, Changchao Dai, Yujie Feng
Summary: The research found that MPAC6 with a Fe3O4 content of 14.3 wt% exhibited the best performance in adsorbing SMX and magnetic properties. The adsorption process showed spontaneous and exothermic characteristics, accompanied by an increase in entropy. Sustainable magnetic adsorbents showed good removal efficiency for SMX in the pH range of 2-4.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Huimin Shi, Ming Gao, Zhicheng Xu, Zhencheng Ma, Jin Ni, Yuansheng Xu, Qunhui Wang
Summary: In this study, the long-term performance of the GAC particle electrode oxidation process (GAC EOP) on amoxicillin (AMX) removal and activated carbon regeneration was investigated. The results showed that the GAC electrode had a more stable physisorption and chemisorption capacity compared to the GAC adsorption process (GAC ADS). The electrochemical regeneration effect ensured the stable chemisorption capacity of the GAC EOP system, resulting in a continuous increase in AMX removal efficiency during the 50 consecutive runs.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Biotechnology & Applied Microbiology
Cassandra Bonfante de Carvalho, Ivan Reis Rosa, Paola Del Vecchio, Ivone Vanessa Jurado Davila, Keila Guerra Pacheco Nunes, Nilson Romeu Marcilio, Liliana Amaral Feris
Summary: This study investigated the degradation and mineralization of the antibiotic ampicillin using a combined treatment of Fenton reaction and adsorption onto GAC, finding optimal adsorption conditions and the influence on adsorption kinetics. The results demonstrate the feasibility of the combined process in reaching high mineralization rates and regeneration efficiency.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Engineering, Environmental
Qianxin Zhang, Menghan Zhang, Tong Li, Roujia Du, Gang Yu, Shubo Deng
Summary: In this study, FeOCl confined into activated carbon (FeOCl/AC) was used for catalytic oxidation of contaminants on spent activated carbon. The results showed that FeOCl/AC had high regeneration efficiency and remained stable even after multiple cycles of adsorption and regeneration.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Juntong Liu, Ruoyu Sun, Yinsu Wu, Shengtao Xing
Summary: In this study, CuOX/MnFe2O4 was synthesized and used as a catalyst for the regeneration of GAC. The results showed that CuOX/MnFe2O4 exhibited high catalytic activity, with singlet oxygen being the dominant reactive species for the degradation of organic pollutants.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Yamid Gomez-Rueda, Brieuc Verougstraete, Chanakya Ranga, Eduardo Perez-Botella, Francois Reniers, Joeri F. M. Denayer
Summary: This study evaluates the use of microwave heating for thermal regeneration in adsorptive carbon capture. The results show that microwave heating can achieve extremely fast desorption and swift adsorption-desorption cycles. Compared to reference thermal swing adsorption processes, microwave swing adsorption outperforms in terms of heating rates. The study also demonstrates high reproducibility in regenerating the adsorption bed without damaging the material's microporosity.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Piotr Gajewski, Francois Beguin
Article
Chemistry, Multidisciplinary
Emmanuel Pamete Yambou, Barbara Gorska, Francois Beguin
Summary: The electrical double-layer capacitors (EDLCs) performed effectively at low temperatures (-40°C) due to the tuned characteristics of the ionic liquid (IL) electrolyte and carbonaceous electrodes. The formulated ternary electrolyte showed low viscosity and high conductivity, remaining in a liquid state until it reached the glass transition at -99°C. Carbon electrodes with well-defined mesopores facilitated ion transport and high volumetric energy outputs of the cells.
Article
Chemistry, Physical
J. Jagiello, A. Chojnacka, S. E. M. Pourhosseini, Z. Wang, F. Beguin
Summary: Hierarchically micro/mesoporous carbons obtained by template carbonization were studied using nitrogen adsorption/desorption, revealing unexpected artifacts when calculating pore size distribution with the 2D-HS-SLIT model. By applying a dual shape pore model, a better fit with experimental results was achieved, showing narrower mesopore peaks and eliminating previous artifacts. Additionally, the cumulative surface area values were significantly larger than those obtained with the 2D-HS-SLIT model due to the larger surface area of cylindrical pores compared to slit-shaped mesopores.
Article
Electrochemistry
P. Jezowski, A. Chojnacka, X. Pan, F. Beguin
Summary: The study demonstrates that NaNH2 can be used as sacrificial material added to active carbon to create a sodium-ion capacitor with high capacity and energy density, outperforming an electrical double-layer capacitor with the same materials.
ELECTROCHIMICA ACTA
(2021)
Article
Electrochemistry
E. Pamete, F. Beguin
Summary: This study investigates the electrochemical stability window of carbon electrodes and electrical double-layer capacitors using LiTFSI aqueous solutions, showing that hydrogen chemisorption at the negative electrode decreases with increasing concentration, while oxygen evolution potential at the positive electrode increases. In a 20 mol kg(-1) LiTFSI electrolyte, the EDLC with equal mass positive and negative carbon electrodes only reaches a maximum cell potential of 1.8 V under floating conditions.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
A. Bothe, S. E. M. Pourhosseini, P. Ratajczak, F. Beguin, A. Balducci
Summary: This study investigates the impact of operating voltage on the electrochemical performance of carbon-based electrical double-layer capacitors containing a stable electrolyte. The findings suggest that the electrolyte is promising for high voltage EDLCs, with the positive electrode being more affected than the negative one after long-term operation.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Xuexue Pan, Agnieszka Chojnacka, Francois Beguin
Summary: The study demonstrates the use of Na2C4O4 as a sacrificial material for presodiation to address the metal deficiency issue in the anodic material of sodium-ion systems. Na2C4O4 greatly enhances conductivity, leading to high specific energy and excellent capacitance retention.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Physical
S. E. M. Pourhosseini, Annika Bothe, Andrea Balducci, Francois Beguin, Paula Ratajczak
Summary: By comparing the TPD and gas adsorption data on the washed fresh anode and cathode coatings with that on the washed aged electrodes, it was found that important carboxylic, anhydride, carbonyl, and quinone groups are created on the anode due to oxidation, leading to a reduction in the volume of pores between 1.2 and 2.6 nm. Conversely, under negative polarization, the initially observed functionalities for the fresh electrode are transformed into more thermally stable ones without significant changes in pore volume.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Physical
Zhuanpei Wang, Emmanuel Pamete, Agnieszka Chojnacka, S. E. M. Pourhosseini, Paula Ratajczak, Francois Beguin
Summary: The effect of surface functionalization on the interactions between carbon walls and ionic liquids (ILs) is analyzed using differential scanning calorimetry (DSC) and Raman spectroscopy. The study reveals that functionalized carbon hosts can enhance the freezing of species near the pore surface, thereby strengthening the IL-IL and IL-carbon interactions.
Article
Chemistry, Physical
Agnieszka Chojnacka, Xuexue Pan, Christopher Bachetzky, Eike Brunner, Francois Beguin
Summary: In this paper, a strategy to optimize the performance of metal-ion capacitors is disclosed. By adjusting the capacity ratio between the anode and the positive electrical double-layer carbon electrode, the specific energy and life span of the capacitors are enhanced.
ENERGY STORAGE MATERIALS
(2022)
Article
Electrochemistry
Andres Parejo-Tovar, Francois Beguin, Paula Ratajczak
Summary: This study introduces a methodology to assess the potentiodynamic characteristics of individual electrodes in hybrid capacitors, using a Li-ion capacitor as an example. The electrode contribution was calculated from cyclic voltammetry measurements on a cell equipped with a reference electrode. It has been observed that the scan rate of the electrodes is not constant in time during the potentiodynamic analysis of a hybrid capacitor.
ELECTROCHEMISTRY COMMUNICATIONS
(2023)
Article
Electrochemistry
Annika Bothe, S. E. M. Pourhosseini, Paula Ratajczak, Francois Beguin, Andrea Balducci
Summary: In this study, the impact of temperature and voltage on the aging of electrical double-layer capacitors (EDLCs) made with a model silica-templated carbon was investigated using an in-situ simultaneous thermal analysis (STA) cell. The results showed that high voltage and elevated temperature caused a fast decrease in capacitance retention and important degradation processes leading to increased heat flow within the system. The correlation between heat flow and electrochemical properties provides valuable insights into the stability of EDLCs, making the in-situ STA cell a useful tool for their investigation.
ELECTROCHIMICA ACTA
(2023)
Article
Electrochemistry
Saida Gharouel, Francois Beguin
Summary: This study reexamines the electrochemical properties of EDLCs based on NaClO4 WIS electrolyte and finds that the maximum cell potential is only 1.9V instead of the previously reported 2.3V.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
Konrad Rotnicki, Angelina Sterczynska, Zbigniew Fojud, Monika Jazdzewska, Anatolii Beskrovnyi, Janusz Waliszewski, Francois Beguin, Malgorzata Sliwinska-Bartkowiak
Summary: The melting behavior of ionic liquid 1-Ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide (EMIM TFSI) confined in nanoporous carbons was investigated. The melting temperature of EMIM TFSI was found to decrease when confined in carbon nanopores compared to the bulk ionic liquid. The study provides insight into the structural properties and dynamic behavior of EMIM TFSI confined in pores.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Paula Ratajczak, Christopher Bachetzky, Zhuanpei Wang, Agnieszka Chojnacka, Natalia Fulik, Emmanuel Pamete Yambou, S. E. M. Pourhosseini, Eike Brunner, Francois Beguin
Summary: Recent research has shown that the applicability of ionic liquids can be extended to lower temperatures by confining them in porous matrices. Experiment results reveal that the mobility of ions in microporous carbon is already reduced at room temperature and only slightly declines upon cooling. Compared to the neat IL, ions confined in mesopores exhibit freezing/melting phase transitions shifted by about 30 K and have a broader freezing/melting temperature range, suggesting the existence of two populations of ions with different interaction states.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Jie Sheng, Jingshan He, Dun Ma, Yuanbo Wang, Wu Shao, Tian Ding, Ronghao Cen, Jingwen He, Zhihao Deng, Wenjun Wu
Summary: This study presents an innovative approach to improve the photovoltaic conversion characteristics and stability of perovskite solar cells through carbon electrode interface modification. By in-situ polymerization and carbonization on the surface of nano-graphite, a dendritic structure carbon electrode is formed, reducing the work function and aligning the energy levels with perovskite. This leads to improved charge and hole collection efficiency, resulting in increased photovoltaic conversion efficiency. Furthermore, the modified carbon electrode-based perovskite solar cells exhibit exceptional stability, maintaining high efficiency even without encapsulation.
Article
Chemistry, Physical
Guodong Shi, Jian Song, Xiaoxiao Tian, Tongtong Liu, Zhanjun Wu
Summary: This study demonstrates the improvement of mechanical properties and reduction of coefficient of thermal expansion (CTE) in graphene oxide (GO)/epoxy (EP) nanocomposites by enhancing the interface between GO and EP through functionalization and incorporating rigid-flexible interphases. The results reveal that the SiO2-PEA-GO hybrid exhibits better strengthening and toughening effects, as well as lower CTE, compared to the PEA-GO hybrid due to the presence of rigid-flexible interfaces with higher bonding strength and better energy dissipation mechanisms. Additionally, the nanocomposites with longer polyetheramine (PEA) molecules in the rigid-flexible interphases demonstrate higher strength and toughness, while maintaining a lower CTE. This work provides a promising strategy for constructing adjustable flexible-rigid interfacial structures and offers potential in developing GO/EP nanocomposites with high mechanical properties and low CTE.
Article
Chemistry, Physical
Rafal Janus, Sebastian Jarczewski, Jacek Jagiello, Piotr Natkanski, Mariusz Wadrzyk, Marek Lewandowski, Marek Michalik, Piotr Kustrowski
Summary: In this study, a facile procedure for the synthesis of CMK-1 and CMK-2 carbon replicas was developed. The method utilizes basic laboratory equipment and a renewable carbon source, and operates under mild conditions. The resulting carbon mesostructures exhibit exquisite replication fidelity and structural homogeneity, making them suitable for applications in various fields.
Article
Chemistry, Physical
Anqi Wang, Connor J. MacRobbie, Alex Baranovsky, Jean-Pierre Hickey, John Z. Wen
Summary: In this study, a novel polymer-free nanothermite aerogel with a wide range of nanoparticle loading was fabricated via a new additive manufacturing process. The SEM images showed a unique porous structure formed by extra thin rGO sheets, wrapping individual nanothermite clusters. The DSC-TGA results and high-speed combustion videos confirmed the enhanced energetic performance of the printed specimen.
Article
Chemistry, Physical
Wanze Wu, Misheng Zhao, Shiwei Miao, Xiaoyan Li, Yongzhong Wu, Xiao Gong, Hangxiang Wang
Summary: Superhydrophobic solar-driven interfacial evaporator is an energy-efficient technology for seawater desalination, which is easily fabricated using robust photothermal superhydrophobic coating and substrate. The created bifunctional coating on the melamine sponge substrate shows stable and highly efficient photothermal and superhydrophobic performance for seawater desalination. This superhydrophobic solar-driven interfacial evaporator is expected to have wide applications in seawater desalination.
Article
Chemistry, Physical
Zichen Xiang, Zhi Song, Tiansheng Wang, Menghang Feng, Yijing Zhao, Qitu Zhang, Yi Hou, Lixi Wang
Summary: This study presents a co-electrospinning synthesis strategy to fabricate lightweight and porous Co@C composite nanofibres with wideband microwave attenuation capacity. The addition of MOF-derived Co additives enhances the low-frequency absorption performance.
Article
Chemistry, Physical
J. Snow, C. Olson, E. Torres, K. Shirley, E. Cazalas
Summary: This study investigates the use of a perovskite-based graphene field effect transistor (P-GFET) device for X-ray detection. The sensitivity and responsivity of the device were found to be influenced by factors such as X-ray tube voltage, current, and source-drain voltage. Simulation experiments were conducted to determine the dose rate and energy incident on the device during irradiation.
Article
Chemistry, Physical
Zuzana Jankovska, Lenka Matejova, Jonas Tokarsky, Pavlina Peikertova, Milan Dopita, Karolina Gorzolkova, Dominika Habermannova, Michal Vastyl, Jakub Belik
Summary: This study provides new insights into microwave-assisted pyrolysis of scrap tyres, demonstrating that it can produce microporous carbon black with potential application in xylene adsorption. Compared to conventional pyrolysis, microwave pyrolysis requires less time and energy while maintaining similar adsorption capacity.
Article
Chemistry, Physical
Max Bommert, Bruno Schuler, Carlo A. Pignedoli, Roland Widmer, Oliver Groning
Summary: A detailed understanding of the interaction between molecules and two-dimensional materials is crucial for incorporating functional molecular films into next-generation 2D material-organic hybrid devices. This study compares the energy level alignment of different-sized fullerenes on a Moire superstructure and finds that C-84 fullerenes can be either neutral or negatively charged depending on slight variations of the electrostatic potential. This discovery suggests a new path to achieve ambipolar charge transfer without overcoming the electronic gap of fullerenes.
Article
Chemistry, Physical
Yuanjing Cheng, Xianxian Sun, Ye Yuan, Shuang Yang, Yuanhao Ning, Dan Wang, Weilong Yin, Yibin Li
Summary: The dual-structure aerogel (GS) consisting of flexible silica fibers and graphene honeycomb structures exhibits excellent resilience, flexibility, and reliability. It also shows remarkable wave absorbing performance, making it an ideal candidate for microwave absorption applications such as flexible electronics and aerospace.
Article
Chemistry, Physical
Shuyu Fan, Yinong Chen, Shu Xiao, Kejun Shi, Xinyu Meng, Songsheng Lin, Fenghua Su, Yifan Su, Paul K. Chu
Summary: Graphene coatings are promising solid lubrication materials due to their mechanical properties. This study presents a new method for in situ deposition of high-quality graphene coatings on hard substrates using NiCo solid solution and competitive reaction strategies. The graphene coating deposited on substrates with deep NiCo solid solution demonstrates superior low-friction and durability.
Article
Chemistry, Physical
Mengdi Wang, Sanyin Qu, Yanling Chen, Qin Yao, Lidong Chen
Summary: The improved thermoelectric properties of conducting polymers are achieved by selectively capturing single-walled carbon nanotubes (SWNTs) in a conducting polymer film, leading to increased carrier mobility and reduced thermal conductivity. The resulting composite film exhibits significantly higher electrical conductivity and lower thermal conductivity compared to films with a mixture of SWNTs. This work provides a convenient and efficient method to enhance the thermoelectric properties of conducting polymers.
Review
Chemistry, Physical
Heng Wei, Weihua Li, Kareem Bachagha
Summary: This article reviews the research progress of carbon nanotube-based microwave absorbing materials (MAMs) in recent years, covering the fundamental theory, design strategies, synthesis methods, and future development directions.
Article
Chemistry, Physical
Chenguang Shi, Junlong Huang, Zongheng Cen, Tan Yi, Shaohong Liu, Ruowen Fu
Summary: This study developed a high-performance Li metal host material, which achieved dendrite-free Li deposition with a low nucleation overpotential and high Coulombic efficiencies through the combination of Ti3C2-g-PV4P sheets and Ag nanoparticles. The full cells assembled with the Li@host anode and LiFePO4 cathode exhibited high discharge capacity and excellent cycling stability, demonstrating a perspective design for future energy storage devices.
Article
Chemistry, Physical
Tomotaro Mae, Kentaro Kaneko, Hiroki Sakurai, Suguru Noda
Summary: A new partial prelithiation method for SiO/C-CNT electrodes was developed, which showed reduced irreversible capacity and achieved high energy densities with good reversibility. The method allows for precise control of the degree of prelithiation and is applicable to various chemistries.