Article
Environmental Sciences
Athanasia K. Tolkou, Athanasios C. Mitropoulos, George Z. Kyzas
Summary: By using activated carbon adsorption technique, AC-Mg-Si-La-Al adsorbent was prepared from coconut shells and effectively removed Remazol Brilliant Blue R dye from wastewater. The optimum conditions were pH 5.0 and a dosage of 0.4 g/L, achieving a removal rate of 99%.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Diogo Dias, Davide Don, Jakpar Jandosov, Maria Bernardo, Filomena Pinto, Isabel Fonseca, Andre Sanches, Paulo Sa Caetano, Svitlana Lyubchyk, Nuno Lapa
Summary: The study demonstrated that P2C+KOH showed efficient adsorption of W(VI) in both synthetic and mining wastewaters, outperforming commercial activated carbon.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Athanasia K. Tolkou, Soultana Trikalioti, Olina Makrogianni, Dimitrios G. Trikkaliotis, Eleni A. Deliyanni, George Z. Kyzas, Ioannis A. Katsoyiannis
Summary: The presence of fluoride in water is a major global water problem that requires effective technologies for its removal. This study focuses on the development of novel adsorbents for fluoride removal, such as magnesium or/and lanthanum-modified activated carbon and silica. The adsorbent materials were studied in terms of their structure and morphology, and tested for the treatment of fluoride-containing waters. The results showed that the maximum adsorption capacity was achieved at pH 8, after 4 hours of reaction, and with a dose of 0.2 g/L of adsorbent. Langmuir-Freundlich isotherm model and pseudo-second order kinetic model fitted the experimental data well.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Article
Chemistry, Physical
Yuyin Mao, Haona Zhang, Weiyi Jiang, Renna Zhao, Yuanyuan Liu, Zeyan Wang, Peng Wang, Zhaoke Zheng, Kepeng Song, Wei Wei, Ying Dai, Jr-Hau He, Hefeng Cheng, Baibiao Huang
Summary: Photoelectrochemical routes powered by renewable solar energy offer a promising alternative to conventional industrial processes for N-2 reduction reaction (NRR) towards NH3 synthesis at ambient conditions. In this study, an integrated LixMoO3/n(+)np(+)-Si photo-cathode achieved a high PEC NH3 yield rate by efficiently harnessing sunlight and promoting catalytic kinetics, without the use of precious noble metals. The lithiation strategy played a crucial role in enhancing NRR kinetics and activating MoO3 into an efficient electrocatalyst for NH3 synthesis. This work has significant potential for constructing monolithic PEC devices for solar-driven artificial ammonia photosynthesis.
Article
Chemistry, Physical
Shaoqing Sun, Kumar Vikrant, Swati Verma, Danil W. Boukhvalov, Ki-Hyun Kim
Summary: Developing high-performance air purifiers for removing carcinogenic volatile organic compounds, such as formaldehyde, from indoor air is of great practical interest. A portable air purifier system was designed using honeycomb ceramic filters loaded with diaminopropane-appended activated carbon. The system showed high removal efficiencies against formaldehyde, with the best performance achieved using 30% DAP/AC. However, the removal efficiency decreased with an increase in relative humidity. The clean air delivery rate of the system reached a high value, and isotherm analysis demonstrated the complex adsorption behavior of formaldehyde. The superior adsorption properties of DAP/AC can be attributed to both covalent and non-covalent interactions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Construction & Building Technology
Marzieh Namdari, Chang-Seo Lee, Fariborz Haghighat
Summary: This study systematically evaluated the ozone removal by various granular activated carbons and granular manganese oxide-cuprous oxide catalysts. It was found that coconut shell-based activated carbon has a substantial capacity to remove ozone at moderate and mild concentration levels, while catalysts feature a slow steady decrease of active sites over time. The material properties were found to be strongly linked to the ozone removal capacity.
BUILDING AND ENVIRONMENT
(2022)
Article
Engineering, Environmental
Bomin Fu, Corinne Ferronato, Ludovic Fine, Frederic Meunier, Jose Luis Valverde, Victor R. Ferro Fernandez, Anne Giroir-Fendler, Jean-Marc Chovelon
Summary: The study investigated the adsorption characteristics of three activated carbons derived from wood on Pemetrexed (PEME) and found that different activated carbons exhibited varying adsorption behaviors in the experiments. The results also indicated that the surface functional groups of the activated carbons play a role in influencing the adsorption of the adsorbate.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Farooq Sher, Kashif Hanif, Abdul Rafey, Ushna Khalid, Ayesha Zafar, Mariam Ameen, Eder C. Lima
Summary: PAC has shown promising potential in purifying water sources, efficiently removing micropollutants without harmful impacts on the environment. By optimizing parameters like PAC dosing, removal efficiency can be significantly improved. Studies on both batch and pilot plant scales have demonstrated that PAC is an effective and feasible solution for micropollutant removal.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Chemistry, Analytical
M. Tomic, Z. Fohlerova, I. Gracia, E. Figueras, C. Cane, S. Vallejos
Summary: The (3-aminopropyl)triethoxysilane modified tungsten oxide nanowires sensors exhibit high sensitivity towards ethanol and nitrogen dioxide under UV-irradiation at room temperature. The sensors also show improved selectivity to nitrogen dioxide and ethanol, with approximately 17 and 20 times more sensitivity compared to non-modified sensors. The results are attributed to the reactive amino group facilitating chemical interaction and electron transfer under UV-light excitation.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Inorganic & Nuclear
Gaurav Tiwari, Rashmi Rekha Devi, Sanjeev P. Mahanta, Prasanta K. Raul, Soumya Chatterjee, Dev Vrat Kamboj
Summary: The aim of this study was to use a simple and efficient adsorption technology based on CuO NPs modified AC to remove Tc from wastewater. CuO NPs were prepared and characterized, then loaded onto AC to form CuO-NC. CuO-NC showed a maximum 92% removal of Tc at a concentration of 3.1 g. The adsorption followed a pseudo first order kinetics and Langmuir isotherm model, indicating monolayer adsorption. The mechanism of Tc removal involved complexation with CuO NPs as revealed by FT-IR spectroscopy.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Engineering, Multidisciplinary
Kai Fang, Ren-dang Yang
Summary: This study utilized heat-activated carbon for the adsorption and removal of furfural from wastewater, with the air oxidation activated carbon showing good adsorption performance. The study concluded that air oxidation activated carbon could be a cost-effective adsorbent for furfural removal from wastewater.
ALEXANDRIA ENGINEERING JOURNAL
(2021)
Review
Environmental Sciences
Md Saif Hasan, Aneek Krishna Karmakar
Summary: Spent automobile batteries are a significant source of harmful heavy metals for the environment, and activated carbons have been proven effective in treating these metals. This review provides a comprehensive overview of the application of activated carbons in adsorbing heavy metals from spent car batteries in aquatic systems, discussing their preparation, adsorption mechanisms, and future research recommendations.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Chemical
Fei Yan, Xiaohan Guo, Qingying Ye, Ping Li, Juanjuan Qi, Lidong Wang
Summary: In this study, supported molybdenum oxide catalysts were prepared and characterized for the efficient oxidation of DMSO in wastewater using green oxidant, H2O2. The degradation product of DMSO, DMSO2, is environmentally friendly and biodegradable, making it suitable for further removal by biological processes. The results demonstrate the potential of this catalyst for treating industrial wastewater containing DMSO.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Mohamed E. Osman, Vladimir V. Maximov, Tshepo D. Dipheko, Tatiana F. Sheshko, Alexander G. Cherednichenko, Pavel A. Nikulshin, Victor M. Kogan
Summary: In this study, a series of K-modified CoMoS catalysts supported on different commercial activated carbons were prepared and characterized. The catalytic activities and selectivities of these catalysts for higher alcohol synthesis were investigated. The results showed that the choice of activated carbon support influenced the catalytic performance of the catalysts. This study provides valuable insights for the efficient synthesis of higher alcohols.
Article
Chemistry, Physical
Jianding Li, Yang Fu, Jianping Xie, Xibei Jia, Yao Kang, Linfeng Zhang
Summary: A defect-rich tungsten-molybdenum oxide modified carbon support (WMOx-C) is prepared and used to fabricate Pd/WMOx-C catalysts, which exhibit superior electrocatalytic performances and stability compared to Pd/C catalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Teresa J. Bandosz
Summary: The oxygen reduction reaction (ORR) is crucial for fuel cell performance, with porous carbon materials playing a key role in enhancing efficiency by facilitating dispersion of catalytic centers and mass transfer.
Article
Chemistry, Physical
Giacomo de Falco, Marc Florent, Teresa J. Bandosz
Summary: Four types of as-received carbon black samples with different surface areas were tested as oxygen reduction catalysts in an alkaline environment. The onset potential, electron transfer number, and kinetic current density were selected as the main performance indicators. Despite having a smaller onset potential than Pt/C, the electron transfer number and kinetic current density of the carbon black samples reached similar values. The results demonstrated a linear dependence between the onset potential and electron transfer number and the surface area/porosity. The carbon black sample with the highest porosity exhibited excellent catalytic behavior due to its developed ultramicropores, which facilitated oxygen adsorption and further reduction.
Article
Chemistry, Physical
Paola S. Pauletto, Marc Florent, Teresa J. Bandosz
Summary: This study tested commercial activated carbon, carbon black, and zirconium-based metal-organic framework as adsorbents for perfluorooctanesulfonic acid (PFOS). The results showed that carbon black was the most effective adsorbent due to its large mesopores and hydrophobic nature.
Article
Biochemistry & Molecular Biology
Maja D. Nesic, Tanja Ducic, Mara Goncalves, Milutin Stepic, Manuel Algarra, Juan Soto, Branislava Gemovic, Teresa J. Bandosz, Marijana Petkovic
Summary: This study investigated the effects of carbon dots and N-carbon dots loaded with Ru-complex on ovarian cancer and osteosarcoma cells induced by UV illumination. The results demonstrated the selective action of the loaded nanomaterials in photodynamic therapy and evaluated their surface and optical properties.
CHEMICO-BIOLOGICAL INTERACTIONS
(2022)
Review
Engineering, Environmental
Paola S. Pauletto, Teresa J. Bandosz
Summary: This review focuses on recent research results on the adsorption of PFAS on activated carbons and metal-organic frameworks. It highlights the potential for further modifications of activated carbons to enhance PFAS adsorption, and the unique features of metal-organic frameworks in providing acid-base complexation and specific interaction sites.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Physical
Giacomo de Falco, Marc Florent, Teresa J. Bandosz
Summary: In this study, a class of oxygen reduction reaction (ORR) catalysts was synthesized from surfactant-modified biosolid by pyrolysis. The addition of surfactants improved the surface features of the catalysts, resulting in increased surface area and pore volume. The enhanced catalytic activity was attributed to the interplay of surface chemistry and the dispersion of catalytic sites. This research provides a new direction for the sustainable utilization of municipal wastes.
ACS APPLIED ENERGY MATERIALS
(2022)
Review
Chemistry, Physical
Chao Yang, Yeshuang Wang, Meisheng Liang, Zhelin Su, Xuan Liu, Huiling Fan, Teresa J. Bandosz
Summary: This article focuses on the importance of room temperature H2S catalytic oxidation on carbon-based materials, highlighting the various factors influencing catalyst performance and summarizing recent research findings and possible catalytic oxidation mechanisms.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Review
Engineering, Environmental
Chao Yang, Giacomo de Falco, Marc Florent, Teresa J. Bandosz
Summary: Gas-phase desulfurization on carbon materials is an important process that combines physical adsorption, reactive adsorption, and catalytic oxidation. Recent developments have focused on inorganic phases that react with H2S and participate in its oxidation. Carbon materials not only provide a developed surface area but also contribute to specific synergistic effects.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Paola S. Pauletto, Marc Florent, Teresa J. Bandosz
Summary: In this study, the effect of surface chemistry on the adsorption of perfluorooctanesulfonic acid (PFOS) was investigated by modifying commercial activated carbon and high porosity carbon black. The results showed that positively charged centers located in mesopores of high volumes are the most important features granting high adsorption capacity of carbons for PFOS removal.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Marc Florent, Teresa J. Bandosz
Summary: Impregnation of highly porous carbon black and micro/mesoporous activated carbon with cobalt and nickel nitrates followed by heat treatment at 850 degrees C in nitrogen revealed significant differences in catalyst performance depending on the type of carbon used. The catalytic activity was found to be strongly influenced by surface chemistry, porosity, and the formation of Co3O4. Co3O4 formation on highly conductive carbon black resulted in excellent performance, while nickel metal nanoparticles promoted ORR when Co3O4 was not formed in sufficient quantity. The presence of small pores significantly enhanced ORR efficiency by promoting oxygen adsorption and electron transfer.
Article
Chemistry, Physical
Niklas Unglaube, Marc Florent, Thomas Otto, Adrian Gutierrez-Serpa, Markus Stoetzer, Julia Grothe, Stefan Kaskel, Teresa J. Bandosz
Summary: Activated carbon with modified surface chemistry and porosity effectively removes formaldehyde at room temperature. The addition of nitrogen enhances the adsorption capacity, particularly in ultramicropores, increasing the utilization of the carbon surface.
Article
Chemistry, Physical
Karina Kowalska, Mariusz Barczak, Dimitrios A. Giannakoudakis, Teresa J. Bandosz, Piotr Borowski
Summary: Theoretical studies were conducted on the physical adsorption of formaldehyde and water as well as the chemisorption of formaldehyde on functionalized graphene surfaces. The results showed that different functional groups have different affinities, and the presence of hydroxyl groups can enhance physical adsorption. Moreover, chemisorption of formaldehyde can occur on hydrogen bond functionalized surfaces at room temperature.
Article
Chemistry, Multidisciplinary
Mariusz Barczak, Marc Florent, Snehal S. Bhalekar, Katsumi Kaneko, Robert J. Messinger, Teresa J. Bandosz
Summary: Sulfur-tuned advanced carbons (STACs) with high sulfur loading are successfully synthesized using a steam-assisted sulfur insertion method. These materials exhibit high sulfur loading, high electrical conductivity, and hydrophobicity. The penetration of sulfur can be controlled to fill different pore sizes, allowing for pore-size-dependent sulfur allocation and controllable porosity.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Marc Florent, Raabia Hashmi, Teresa J. Bandosz
Summary: By modifying highly porous carbon black material with urea and thiourea, N- or N- and S-containing functional groups can be introduced to enhance its catalytic activity in the oxygen reduction reaction. The introduction of N and S can increase the catalytic activity, with sulfur compensating for the smaller absolute amounts of nitrogen.
MATERIALS ADVANCES
(2022)
Article
Engineering, Environmental
Amani M. Ebrahim, Teresa J. Bandosz
Summary: Two amine-modified copper-based Metal Organic Frameworks (MOF (CuBTC)) with different surface chemical and textural features were synthesized and used as adsorbents for acidic toxic gases (NO2 and H2S) in both moist and dry conditions. The urea-modified sample showed good adsorption performance for NO2 in moist conditions, while the melamine-modified sample provided a favorable environment for the removal of H2S in dry conditions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
