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Showing 1 to 10 of 10 for “"activated carbon fibers"”.
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Surface chemistry design and characterization of anion exchange and activated carbon fibers for critical contaminants removal
… contaminants. The first project is to study activated carbon fiber composites (ACFCs) for removal of NH3 from air. Three series of materials were synthesized and modified, namely Polyvinyl alcohol (PVA) based Chemically Activated Carbon Fibers (CAFs) with optimized activation temperatures, …
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Design of chemically treated activated carbon fibers for mercury removal and advanced membranes for water purification
… thesis, one is to develop chemically treated activated carbon fibers for mercury removal from power plant effluents, and the other one is to design advanced nanofiltration membranes for water purification with specific features, i.e. solvent resistance and antifouling properties. The current …
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The role of micropore size and chemical nature of the pore surface on the adsorption properties of activated carbon fibers
… isotherms of a series of progressively activated carbon fibers (ACF) with a range of surface areas from 760 $\rm m\sp2/g$ to 2420 $\rm m\sp2/g,$ prepared from phenolic precursors were examined with acetone, n-butane, benzene and nitrogen. The experimental results revealed a …
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Design of Advanced Fibrous Based Material Systems to Meet the Critical Challenges in Water Quality and Carbon Dioxide Mitigation
Aminated polyacrylonitrile activated carbon fibers (N-ACF) coated on a non-woven fiberglass mat, displayed the ability to remove NOM more efficiently than granulated activated carbon or ion exchange beads at concentrations below 50 mg/L. Electrostatic attraction was found to be the dominant …
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The development and characterization of tailored, high surface area adsorbents for enhanced adsorption
In the 1970's, the first activated carbon fibers(ACFs) were developed from phenolic precursors by Economy et al. These fibers addressed the serious limitations of ACGs and possessed excellent contact efficiency (fast adsorption/desorption kinetics), high surface area, narrow micropore size …
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Preparation and Evaluation of Sulfur -Containing Adsorbents for Removal of Mercury From Simulated Coal Combustion Flue Gases
Carbonaceous and non-carbonaceous adsorbents were prepared to evaluate the influences of their physical and chemical properties on the removal of trace amounts of Hg0 and HgCl2 from simulated coal combustion flue gases. These adsorbents include coal-derived activated carbons (CDACs), activated …
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Synthesis of anion exchange/activated carbon fiber hybrid materials for aqueous adsorption of toxic hexavalent chromium
… selective removal of Cr(VI), a unique hybrid activated carbon/anion exchange system (HACAX) has been developed for the first time in our group. HACAX was synthesized by methylation of PAN based Chemically Activated Carbon Fibers. The HACAX was characterized by BET, SEM, XPS,TGA and elemental …
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Synthesis and Characterization of Novel Adsorbent Fibers
… the unique properties of commercially available activated carbon fibers (ACFs) were used as a foundation. In the first system, sulfonated pyropolymeric fibers derived from phenol-formaldehyde resins serve as cationic exchangers. This system was characterized through elemental analysis (EA), …
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Understanding and enhancing multi-pollutant control using carbon-based materials
… of research and industrial use have solidified carbon as one of the most versatile materials available. In the environmental arena, carbon is used as an adsorbent for air and water applications. Recent studies, however, highlight its use as a catalyst support or direct catalyst. Exploiting this …