3D-printed monolithic biofilters based on a polylactic acid (PLA)-hydroxyapatite (HAp) composite for heavy metal removal from an aqueous medium
(2021) In RSC Advances 11(51). p.32408-32418- Abstract
High flux, monolithic water purification filters based on polylactic acid (PLA) functionalised with fish scale extracted hydroxyapatite (HAp) were prepared by solvent-assisted blending and thermally induced phase separation (TIPS), followed by twin-screw extrusion into filaments and processed via three-dimensional (3D) printing. The printed filters with consistent pore geometry and channel interconnectivity as well as homogenous distribution of HAp in the PLA matrix showed adsorption capabilities towards heavy metals i.e. cadmium (Cd) and lead (Pb) with maximum adsorption capacity of 112.1 mg gHAp-1 and 360.5 mg gHAp-1 for the metal salt of Pb and Cd, respectively. The adsorption was found to be driven by a combination of ion exchange,... (More)
High flux, monolithic water purification filters based on polylactic acid (PLA) functionalised with fish scale extracted hydroxyapatite (HAp) were prepared by solvent-assisted blending and thermally induced phase separation (TIPS), followed by twin-screw extrusion into filaments and processed via three-dimensional (3D) printing. The printed filters with consistent pore geometry and channel interconnectivity as well as homogenous distribution of HAp in the PLA matrix showed adsorption capabilities towards heavy metals i.e. cadmium (Cd) and lead (Pb) with maximum adsorption capacity of 112.1 mg gHAp-1 and 360.5 mg gHAp-1 for the metal salt of Pb and Cd, respectively. The adsorption was found to be driven by a combination of ion exchange, dissolution and precipitation on HAp and surface complexation.
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- author
- Fijoł, Natalia ; Abdelhamid, Hani Nasser ; Pillai, Binsi ; Hall, Stephen A. LU ; Thomas, Nebu and Mathew, Aji P.
- organization
- publishing date
- 2021-09-23
- type
- Contribution to journal
- publication status
- published
- subject
- in
- RSC Advances
- volume
- 11
- issue
- 51
- pages
- 11 pages
- publisher
- Royal Society of Chemistry
- external identifiers
-
- scopus:85117418859
- ISSN
- 2046-2069
- DOI
- 10.1039/d1ra05202k
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © The Royal Society of Chemistry.
- id
- 0963ce88-ac49-438f-b561-66b4764d20d7
- date added to LUP
- 2024-10-16 09:53:27
- date last changed
- 2025-04-04 14:02:08
@article{0963ce88-ac49-438f-b561-66b4764d20d7,
abstract = {{<p>High flux, monolithic water purification filters based on polylactic acid (PLA) functionalised with fish scale extracted hydroxyapatite (HAp) were prepared by solvent-assisted blending and thermally induced phase separation (TIPS), followed by twin-screw extrusion into filaments and processed via three-dimensional (3D) printing. The printed filters with consistent pore geometry and channel interconnectivity as well as homogenous distribution of HAp in the PLA matrix showed adsorption capabilities towards heavy metals i.e. cadmium (Cd) and lead (Pb) with maximum adsorption capacity of 112.1 mg gHAp-1 and 360.5 mg gHAp-1 for the metal salt of Pb and Cd, respectively. The adsorption was found to be driven by a combination of ion exchange, dissolution and precipitation on HAp and surface complexation.</p>}},
author = {{Fijoł, Natalia and Abdelhamid, Hani Nasser and Pillai, Binsi and Hall, Stephen A. and Thomas, Nebu and Mathew, Aji P.}},
issn = {{2046-2069}},
language = {{eng}},
month = {{09}},
number = {{51}},
pages = {{32408--32418}},
publisher = {{Royal Society of Chemistry}},
series = {{RSC Advances}},
title = {{3D-printed monolithic biofilters based on a polylactic acid (PLA)-hydroxyapatite (HAp) composite for heavy metal removal from an aqueous medium}},
url = {{http://dx.doi.org/10.1039/d1ra05202k}},
doi = {{10.1039/d1ra05202k}},
volume = {{11}},
year = {{2021}},
}