High surface area mesoporous activated carbon-alginate beads for efficient removal of methylene blue
High surface area mesoporous activated carbon-alginate (AC-alginate) beads were successfully synthesized by entrapping activated carbon powder derived from Mangosteen fruit peel into calcium-alginate beads for methylene blue (MB) removal from aqueous solution. The structure and surface characteristi...
| Main Authors: | Nasrullah, A., Bhat, A.H., Naeem, A., Isa, M.H., Danish, M. |
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| Format: | Article |
| Institution: | Universiti Teknologi Petronas |
| Record Id / ISBN-0: | utp-eprints.21822 / |
| Published: |
Elsevier B.V.
2018
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| Online Access: |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85031508801&doi=10.1016%2fj.ijbiomac.2017.10.045&partnerID=40&md5=e9685ce4161528afc0d4023e0da0261f http://eprints.utp.edu.my/21822/ |
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| Summary: |
High surface area mesoporous activated carbon-alginate (AC-alginate) beads were successfully synthesized by entrapping activated carbon powder derived from Mangosteen fruit peel into calcium-alginate beads for methylene blue (MB) removal from aqueous solution. The structure and surface characteristics of AC-alginate beads were analyzed using Fourier transform infra-red (FTIR) spectroscopy, scanning electron microscopy (SEM) and surface area analysis (SBET), while thermal properties were tested using thermogravimetric analysis (TGA). The effect of AC-alginate dose, pH of solution, contact time, initial concentration of MB solution and temperature on MB removal was elucidated. The results showed that the maximum adsorption capacity of 230 mg/g was achieved for 100 mg/L of MB solution at pH 9.5 and temperature 25 °C. Furthermore, the adsorption of MB on AC-alginate beads followed well pseudo-second order equation and equilibrium adsorption data were better fitted by the Freundlich isotherm model. The findings reveal the feasibility of AC-alginate beads composite to be used as a potential and low cost adsorbent for removal of cationic dyes. © 2017 Elsevier B.V. |
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