Publication:
Design of structure of hierarchically porous carbon monoliths with magnetic properties for high efficiency in adsorption of lead (II) ions

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Issued Date

2020

Resource Type

Conference Paper

File Type

application/pdf

ISSN

17551307

DOI

10.1088/1755-1315/463/1/012075

Other identifier(s)

2-s2.0-85083440718

Rights Holder(s)

Scopus

Bibliographic Citation

IOP Conference Series: Earth and Environmental Science. Vol 463, No.1 (2020)

Suggested Citation

Onsri P., Dechtrirat D., Nooeaid P., Eiadua A., Amornpitoksuk P., Chuenchom L. Design of structure of hierarchically porous carbon monoliths with magnetic properties for high efficiency in adsorption of lead (II) ions. IOP Conference Series: Earth and Environmental Science. Vol 463, No.1 (2020). doi:10.1088/1755-1315/463/1/012075 Retrieved from: https://hdl.handle.net/20.500.14740/4592

Title

Design of structure of hierarchically porous carbon monoliths with magnetic properties for high efficiency in adsorption of lead (II) ions

Author(s)

Onsri P.
 Dechtrirat D.
 Nooeaid P.
 Eiadua A.
 Amornpitoksuk P.
 Chuenchom L.

Abstract

Pb (II) is one of the toxic heavy metal ions, which is released from the industry, especially the manufacture of batteries and electronics-devices. Its release into the water effluents causes environmental problems and affects the humans’ and animals’ health. Adsorption is one of the conventional techniques for removal of Pb (II) in water treatment processes. The adsorbents with effective adsorption properties with their easy operation are then desired. In this study, hierarchically porous carbon monoliths with magnetic properties have been designed and successfully fabricated by incorporating sodium alginate and black liquor in ferric chloride solution. The resulting monoliths have been used to study their adsorption efficiency towards Pb (II) in aqueous solution. The interconnected macroporous structures of the materials were generated by the freeze-drying process, while the increase in microporosity was observed after pyrolysis at 700 °C (SA-BL-Fe-700). SA-BL-Fe-700 showed a magnetization of 8.79 emu/g, and high porosity, with a BET specific surface area of 945.45 m2/g and pore size distribution calculated by DFT was less than 2 nm, which is suitable to adsorb Pb (II) ions. Furthermore, the materials obtained showed a monolith feature in a cylindrical shape with strong mechanical stability, which renders them with the easy operation. The adsorption properties of SA-BL-Fe-700 monolith toward Pb (II) ions demonstrated a maximum adsorption capacity of 75.19 mg/g at pH 5 with retaining the magnetic properties. The study of adsorption behaviours illustrated that equilibrium data and kinetic study fitted with Langmuir isotherm model and pseudo-second-order model, respectively. © 2020 Institute of Physics Publishing. All rights reserved.

Subject(s)

Adsorption
 Carbon
 Chlorination
 Chlorine compounds
 Design for testability
 Effluents
 Electronics industry
 Energy conservation
 Environmental technology
 Heavy metals
 Iron compounds
 Isotherms
 Lead removal (water treatment)
 Magnetic properties
 Magnetism
 Mechanical stability
 Metal ions
 Pore size
 Porous materials
 Sodium alginate
 Water treatment
 BET specific surface area
 Conventional techniques
 Environmental problems
 Ferric chloride solution
 Hierarchically porous carbons
 Langmuir isotherm models
 Pseudo-second order model
 Water treatment process
 Lead compounds
 Adsorption
 Carbon
 Chlorination
 Chlorine Compounds
 Effluents
 Energy Conservation

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URI

https://hdl.handle.net/20.500.14740/4592

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Scopus: Year 1983-2021

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