Abstract
ABSTRACT Recently, there has been interest in designing recyclable and economical material for actual environmental remediation. In the present research work, amine-functionalised biosilica/alginate (NH2-SiO2/ALG) composite was evaluated for efficient capture of carbon dioxide (CO2). The morphological and textural properties of NH2-SiO2/ALG composite were comprehensively characterised by BET, SEM, XRD, TGA, and FTIR techniques. The impact of influential factors on the adsorption efficiency procedure was explored in a fixed-bed reactor and the corresponding breakthrough curves were plotted. The optimum value for CO2 removal efficiency (RE)% was predicted as 93.08% at 40°C temperature, 40 mL/min gas flow rate, and 5% moisture content. Under these conditions, the actual CO2 RE% was achieved 92.4%. The exothermic isosteric heat of adsorption (IHA) was found as 25.3–34.8 kJ/mol representing physical interactions between NH2-SiO2/ALG and CO2 molecules. Regeneration tests showed that the synthesised NH2-SiO2/ALG can be effectively recovered and used in multiple runs.
Sign-in/Register to access full text options 
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 callMore From: International Journal of Environmental Analytical Chemistry
Disclaimer: 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.
