3D printed polylactic acid (PLA) filters reinforced with polysaccharide nanofibers for metal ions capture and microplastics separation from water

Fijoł, Natalia; Aguilar-Sánchez, Andrea; Ruiz-Caldas, Maria-Ximena; Redlinger-Pohn, Jakob Dominik; Mautner, Andreas; Mathew, Aji P.

doi:10.1016/j.cej.2022.141153

Cited by 29 publications

(11 citation statements)

References 69 publications

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“…4c. As reported in our previous work, 36 both the elastic modulus and the toughness values of pristine PLA filters were improved by the addition of TCNFs. This study confirms that finding, showing the Young's modulus and average toughness of the pristine TCNF/PLA samples being 9% and 45% higher when compared to those of the reference and pristine PLA samples, respectively.…”

Section: Resultssupporting

confidence: 83%

“…2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-oxidized cellulose nanofibers (TCNFs). As reported in our previous work, 36 using TCNFs as a reinforcement in PLA results in enhancement of the mechanical performance of the 3D printed water purification filters, and improves adsorption performance of PLA-based filters towards removal of metal ions from water.…”

Section: Introductionsupporting

confidence: 69%

“…The development of the biobased TCNF/PLA 3D-printing lament and further utilization thereof to fabricate variously shaped water purication lters suitable for removal of metal ions and microplastics from water is reported in our previous work. 36 The previous study established satisfactory performance of the 3D printed PLA and TCNF/PLA lters for adsorption of Cu 2+ ions. However, in order to achieve a highly efficient water lter, further functionalization thereof with the robust and biocompatible SU-101 material aims to improve the overall metal ion adsorption properties via enabling more selective adsorption, which could lead to a wider applicability of 3D printed lters within the water treatment industry.…”

Section: Introductionmentioning

confidence: 85%

“…The master batch of the composite suspension was prepared using the protocol reported in our previous studies. 36,45 In brief, transparent, commercial PLA pellets were dissolved in 10 vol% of 1,4dioxane solution and magnetically stirred overnight for 12 h at room temperature i.e. at 18-20 °C.…”

Section: Methodsmentioning

confidence: 99%

“…FDM offers various benets when compared to traditional manufacturing methods, as it is relatively inexpensive, operates at high speed, generates low material losses and most importantly, enables the development of customized and complex shaped ltration systems at the point and time of need. [34][35][36] Polylactic acid (PLA) is a biodegradable polymer material oen used for FDM. PLA can be easily processed by using commercial, desktop 3D printers and its use results in 3D prints of high resolution and excellent nish quality.…”

Section: Introductionmentioning

confidence: 99%

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MOF@Cell: 3D printed biobased filters anchored with a green metal–organic framework for effluent treatment

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Section: Resultssupporting

confidence: 83%

Section: Introductionsupporting

confidence: 69%

Section: Introductionmentioning

confidence: 85%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

MOF@Cell: 3D printed biobased filters anchored with a green metal–organic framework for effluent treatment

et al. 2023

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In Situ Functionalisation and Upcycling of Post‐Consumer Textile Blends into 3D Printable Nanocomposite Filaments

Apostolopoulou‐Kalkavoura,

Fijoł,

Lombardo

et al. 2024

Advanced Sustainable Systems

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The linear lifecycle of the textile industry contributes to the enormous waste generation of post‐consumer garments. Recycling or repurposing of post‐consumer garments typically requires separation of the individual components. This study describes a novel and facile chemo‐thermo‐mechanical method for producing extrudable pellets, involving one‐pot, 2,2,6,6‐Tetramethylpiperidine‐1‐oxyl (TEMPO)‐mediated oxidation of post‐consumer polycotton textiles, followed by mild mechanical treatment, all without isolating the constituents of the polycotton blend. The oxidized blend with high cellulose and carboxylate content of 1221 ± 82 mmol COO− per kg of cotton, is pelletised into a masterbatch and further in situ extruded into nanocomposite filaments for 3D printing. The carboxyl groups introduced on the polycotton‐based filters enable cotton fibrillation into nanoscaled fibers during mechanical treatment and extrusion resulting to a variety of functional and high surface‐finish quality models, including filters and fashion accessories. The electrostatic interactions with positively charged species, such as methylene blue (MB), facilitate their adsorption from water while exhibiting promising adsorption capacities. The adsorption of MB follows the Freundlich model and depends on the printed porosity of the filter. A “trash to treasure” concept for textile waste is further corroborated through the use of the developed 3D printing filament into commodity products.

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Comparing lignin and spent coffee grounds as bio‐fillers in PLA 3D‐printable filaments

Lage‐Rivera,

Ares‐Pernas,

Dopico‐García

et al. 2024

Polymer Composites

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Material extrusion additive manufacturing is increasingly popular but requires new materials to expand its industrial applicability. This study compares the effects of two bio‐fillers (lignin and spent coffee grounds (SCG)) in a bio‐polymer matrix, polylactic acid (PLA). The bio‐fillers aim to enhance the sustainability of the resulting composites, tune their physical properties (rheology, thermal stability, mechanical resistance and water absorption) and improve 3D‐printability by reducing the temperature at the nozzle. The composite with 15 wt.% SCG exhibited an elongation at break of 22.95% (vs. 8.42% for PLA), a printing temperature of 180°C (vs. 215°C for PLA) and a water absorption after 6 weeks immersion in water of 18.77 wt.% (vs. 5.04 wt.% of PLA), suggesting applications like hydroponic farming. Moreover, small amounts of SCG protected the composite against thermo‐oxidative degradation during extrusion, while lignin enhanced the thermal stability of the composite.Highlights 15 wt.% SCG improved PLA ductility (elongation at break 22.9% vs. PLA's 8.4%). Lower printing temperature (180 vs. 215°C for PLA) was achieved with 15 wt.% SCG. SCG protects composite from thermo‐oxidative degradation. 15 wt.% SCG in PLA absorbs 18.77% water after 6 weeks (vs. 5.04% of PLA). Lignin boosts thermal stability of PLA composite.

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3D printed polylactic acid (PLA) filters reinforced with polysaccharide nanofibers for metal ions capture and microplastics separation from water

Cited by 29 publications

References 69 publications

MOF@Cell: 3D printed biobased filters anchored with a green metal–organic framework for effluent treatment

MOF@Cell: 3D printed biobased filters anchored with a green metal–organic framework for effluent treatment

In Situ Functionalisation and Upcycling of Post‐Consumer Textile Blends into 3D Printable Nanocomposite Filaments

Comparing lignin and spent coffee grounds as bio‐fillers in PLA 3D‐printable filaments

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