Advanced Dye Sorbents from Combined Stereolithography 3D Printing and Alkali Activation of Pharmaceutical Glass Waste

Overview

Journal Materials (Basel)

Publisher MDPI

Date 2022 Oct 14

PMID 36234164

Authors

Mokhtar Mahmoud

Jozef Kraxner

Hamada Elsayed

Dusan Galusek

Enrico Bernardo

Affiliations

Soon will be listed here.

Abstract

Additive manufacturing (AM) technologies enable the fabrication of objects with complex geometries in much simpler ways than conventional shaping methods. With the fabrication of recyclable filters for contaminated waters, the present work aims at exploiting such features as an opportunity to reuse glass from discarded pharmaceutical containers. Masked stereolithography-printed scaffolds were first heat-treated at relatively low temperatures (680 and 730 °C for 1 h) and then functionalized by alkali activation, with the formation of zeolite and sodium carbonate phases, which worked as additional adsorbing centers. As-sintered and activated scaffolds were characterized in terms of the efficiency of filtration and removal of methylene blue, used as a reference dye. The adsorption efficiency of activated printed glass was 81%. The 3D-printed adsorbent can be easily separated from the solution for reuse.

Citing Articles

Upcycling waste derived glass into high-performance photocatalytic scaffolds by alkali activation and direct ink writing.

Mahmoud M, Kraxner J, Mehta A, Elsayed H, Galusek D, Bernardo E Heliyon. 2024; 10(2):e24737.

PMID: 38298710 PMC: 10828805. DOI: 10.1016/j.heliyon.2024.e24737.

Utilization of Foamed Glass as an Effective Adsorbent for Methylene Blue: Insights into Physicochemical Properties and Theoretical Treatment.

Al-Kroom H, Abdel-Gawwad H, Abd Elrahman M, Abdel-Aleem S, Saad Ahmed M, Salama Y Materials (Basel). 2023; 16(4).

PMID: 36837042 PMC: 9961413. DOI: 10.3390/ma16041412.

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