Article
Chemistry, Physical
Lu Jiang, Zhiqian Jia, Xin Xu, Yili Chen, Wenjuan Peng, Jiamin Zhang, Huimin Wang, Suoding Li, Jianping Wen
Summary: In this study, nano silver particles were loaded onto activated carbon fiber (ACF) using vacuum impregnation and green reduction method, resulting in silver loaded ACF with high antibacterial activity and adsorption performance, showing great potential in water treatment applications.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Engineering, Chemical
Lauro Adeilson da Silva Alvarino, Fernando Manzotti, Wardleison Martins Moreira, Thiago Peixoto de Araujo, Daniel Tait Vareschini, Maria Angelica Simoes Dornellas de Barros
Summary: Contamination of water resources by pathogenic microorganisms is a major global concern. This study aimed to develop natural antibacterial materials by impregnating activated babassu charcoal with aqueous and alcoholic extracts of garlic to reduce the microbial load in effluents. The results showed significant antibacterial activities of the garlic extract-impregnated biomaterials, making them a green alternative for pre-treatment of complex effluents such as hospital effluents.
Article
Engineering, Chemical
Chaiyot Tangsathitkulchai, Suravit Naksusuk, Atichat Wongkoblap, Poomiwat Phadungbut, Prapassorn Borisut
Summary: The study investigated the equilibrium and kinetics of CO2 adsorption by coconut-shell activated carbon impregnated with sodium hydroxide at 273 K. The CO2 adsorption increased with NaOH loading and exhibited three distinctive regions. The results showed an empirical correlation between effective pore diffusivity, CO2 adsorption, and NaOH loading.
Article
Chemistry, Physical
Rashad Al-Gaashani, Dema Almasri, Basem Shomar, Viktor Kochkodan
Summary: The novel activated carbon composite materials doped with aluminum oxide and silver nanoparticles were prepared and used for adsorptive removal of molybdenum and arsenic from contaminated water. The materials showed high removal rates for both pollutants due to electrostatic attraction and ligand exchange adsorption mechanisms. Additionally, the composite materials exhibited notable antibacterial properties against both Gram-negative and Gram-positive bacteria.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Jonathan Pullas Navarrete, Ernesto de la Torre
Summary: In this study, activated carbon fibers (ACF) were prepared using cotton-woven wastes as raw material under chemical activation with H3PO4. A highly microporous structure was obtained, and silver particles were impregnated into the fibers, resulting in a strong antibacterial effect.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Ido Nir, Vladislav Shepelev, Alexander Pevzner, Daniele Marciano, Lilach Rosh, Tal Amitay-Rosen, Hadar Rotter
Summary: Inorganic phosphate compounds, such as phosphoric acid and its salts, can be used as anti-aging additives for air filters with activated carbon. These additives effectively inhibit the aging of the filters and maintain their adsorption capacity for harmful gases.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Environmental Sciences
Raziyeh Ahmadi, Omid Arjmand, Neda Haj Mohammad Hossein Tehrani, Atiyye Ghorbani, Alimorad Rashidi, Mehdi D. Esrafili, Hadi Hamyali
Summary: In this study, amine impregnated activated carbon was synthesized and used as an effective adsorbent for gasoline vapor uptake. The physiochemical characterization of the synthesized sorbents showed high surface area and unique micro-meso pore structure, which significantly influenced the gasoline sorption capacity. The prepared sorbents exhibited high durability and maintained a high uptake capacity after multiple cycles.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Nanoscience & Nanotechnology
Blaise Ostertag, Ashley E. Ross
Summary: We developed a novel copolymer-based porous carbon microfiber (PCMF) through wet-spinning, which greatly enhances electrochemical detection. By wet spinning a copolymer solution of PAN and PMMA, we successfully synthesized controllable porous carbon microfibers with increased edge-plane character. The increase in porosity improves the surface disorder, leading to significantly improved electrochemical detection capabilities.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Energy & Fuels
John H. Jacobs, Nancy Chou, Kevin L. Lesage, Ye Xiao, Josephine M. Hill, Robert A. Marriott
Summary: Activated carbons have been found to possess good selective adsorption capability for removing sulfur dioxide from flue gas, especially in the presence of water. The activated carbons prepared with KOH and NaOH showcased the highest SO2 adsorption capacity under wet conditions. Additionally, the adsorption performance of all activated carbons remained unchanged after multicomponent adsorption of wet SO2.
Article
Energy & Fuels
Sinang Choi, Sang-Sup Lee
Summary: Activated carbon injection upstream of a particulate matter control device is commonly used to control mercury in coal-fired flue gas. Nitrogen oxides and hydrogen chloride can enhance the efficiency of activated carbon for mercury removal. Among different chloride compounds impregnated on activated carbon, copper chloride impregnated activated carbon showed the highest mercury adsorption efficiency under specific conditions.
Article
Materials Science, Multidisciplinary
Thobile Masinga, Malvin Moyo, Vusumzi Emmanuel Pakade
Summary: This study investigates the use of PEI solution-impregnated activated carbon as a potential adsorbent for the removal of toxic Cr(VI) from water. The experimental results show that high removal efficiency can be achieved at pH 3, a contact time of 120 minutes, and a dosage concentration of 1 g L-1. Kinetic and isotherm models were applied to analyze the data, and a maximum adsorption capacity of 114 mg g-1 was obtained.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Biochemistry & Molecular Biology
Nurul Noramelya Zulkefli, Rajeevelosana Seladorai, Mohd Shahbudin Masdar, Nabilah Mohd Sofian, Wan Nor Roslam Wan Isahak
Summary: This study focuses on the synthesis, characterization, and performance evaluation of core shell nanostructure adsorbent for hydrogen sulfide (H2S) capture. Different preparation techniques were used to modify commercial coconut shell activated carbon (CAC) and the performance of the synthesized adsorbents was analyzed. The results showed that a specific combination of adsorbents exhibited better adsorption capacity, but degradation was also observed.
Article
Nanoscience & Nanotechnology
Tianyu Guo, Zhangmin Wan, Yan Yu, Hui Chen, Zhifeng Wang, Dagang Li, Junlong Song, Orlando J. Rojas, Yongcan Jin
Summary: This study investigates the mechanism of binding between dopamine-conjugated carboxymethyl cellulose and carbon nanotubes, as well as the strain-induced interfacial strengthening in wet-spun filaments. The results reveal the reversible torsion of neighboring molecules and the wrapping of DA-CMC around CNTs as the main factors contributing to the interfacial strengthening of the filaments. These findings are significant for the development and improvement of high-performance fibers.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Biochemistry & Molecular Biology
Noor Ul Alamin, Amir Sada Khan, Asma Nasrullah, Jibran Iqbal, Zahoor Ullah, Israf Ud Din, Nawshad Muhammad, Shahan Zeb Khan
Summary: A cost-effective and sustainable activated carbon based on Calligonum polygonoides biomass was successfully synthesized and used in carbon-alginate beads for the adsorption of methylene blue dye. The fabricated beads demonstrated high adsorption capability and efficiency for the removal of cationic dyes from wastewater, even after recycling.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Engineering, Environmental
Aysan Ghahremani, Mehrdad Manteghian, Hamid Kazemzadeh
Summary: In this study, a novel pervaporation technique was used to impregnate nano-activated carbon on lightweight expanded clay aggregate. Various analyses were conducted to investigate the structure and morphology of the adsorbent, and the impact of different parameters on its performance was studied, resulting in maximum lead removal efficiency achieved at pH=6.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)