Abstract
Herein, a new floating porous graphite carbon monolith (FCM) was prepared using the graphite powder and peanut shells as the carbon skeleton and using FAC and sepiolite as the swelling agent. The multi-hierarchical porous FCMs were obtained by two-step acid activation method. The effects of the addition of biomass and phosphoric acid on the physical properties and pore structure of the prepared material were investigated. The FCM was combined with codoped titania to develop a new floating photocatalysts. The results showed an increase in the amount of biomass materials during FCM preparation increased the ratio of mesoporous structure in the products. In addition, a high micropore volume ratio and the strongest adsorption effect were achieved by optimizing the phosphoric acid impregnation ratio. After process optimization, the densities of the prepared FCMs ranged between 0.75 and 0.89 g/cm3, and the specific surface area and diameter range of the large pores of the material were 104.5 m2/g and 3-50 μm, respectively. Moreover, the new floating catalysts displayed the excellent photocatalytic properties and recyclability performance.
Highlights
Because of its good porous and good surface properties, shaped macro/mesoporous activated carbon is already used for environmental restoration, gas storage and capture, energy storage and conversion and catalyst carriers [1,2,3]
With the increasing number of publications on shaped carbon materials, the application of active carbon monoliths(ACMs) have been a hot topic in recent years [4,5]. With regard to their material characteristics, ACMs exhibit a large proportion of extensive pore structures, a high chemical stability, a large specific surface area and good adsorption capacity
Large size shaped macro/mesoporous carbon monoliths are primarily prepared by extrusion molding, and the raw materials used for the preparation of these ACMs include activated carbon powder, micellar carbon fibers and carbonized resin [10,11,12]
Summary
Because of its good porous and good surface properties, shaped macro/mesoporous activated carbon is already used for environmental restoration, gas storage and capture, energy storage and conversion and catalyst carriers [1,2,3]. With the increasing number of publications on shaped carbon materials, the application of active carbon monoliths(ACMs) have been a hot topic in recent years [4,5]. With regard to their material characteristics, ACMs exhibit a large proportion of extensive pore structures, a high chemical stability, a large specific surface area and good adsorption capacity. Large size shaped macro/mesoporous carbon monoliths are primarily prepared by extrusion molding, and the raw materials used for the preparation of these ACMs include activated carbon powder, micellar carbon fibers and carbonized resin [10,11,12].
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
