Facile approach for designing a novel micropatterned antiwetting membrane by utilizing 3D printed molds for improved desalination performance

Ray, Saikat Sinha; Dommati, Hitesh; Wang, Jiachang; Lee, Hyung Kae; Park, Hosik; Kim, In‐Chul; Chen, Shiao‐Shing; Kwon, Young‐Nam

doi:10.1016/j.memsci.2021.119641

Cited by 13 publications

(4 citation statements)

References 41 publications

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“…For this reason, a significant body of research aimed at solving this problem and identifying solutions has been pursued. As one example, desalinization techniques that remove salt from seawater to produce drinkable water have been described [ 2 , 3 , 4 , 5 , 6 ]. This type of strategy is very efficient and can also produce a large quantity of water.…”

Section: Introductionmentioning

confidence: 99%

Bioinspired and Post-Functionalized 3D-Printed Surfaces with Parahydrophobic Properties

2021

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Desertification is a growing risk for humanity. Studies show that water access will be the leading cause of massive migration in the future. For this reason, significant research efforts are devoted to identifying new sources of water. Among this work, one of the more interesting strategies takes advantage of atmospheric non-liquid water using water harvesting. Various strategies exist to harvest water, but many suffer from low yield. In this work, we take inspiration from a Mexican plant (Echeveria pulvinate) to prepare a material suitable for future water harvesting applications. Observation of E. pulvinate reveals that parahydrophobic properties are favorable for water harvesting. To mimic these properties, we leveraged a combination of 3D printing and post-functionalization to control surface wettability and obtain parahydrophobic properties. The prepared surfaces were investigated using IR and SEM. The surface roughness and wettability were also investigated to completely describe the elaborated surfaces and strongly hydrophobic surfaces with parahydrophobic properties are reported. This new approach offers a powerful platform to develop parahydrophobic features with desired three-dimensional shape.

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Section: Introductionmentioning

confidence: 99%

Bioinspired and Post-Functionalized 3D-Printed Surfaces with Parahydrophobic Properties

2021

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“…The desired micropatterning was obtained by utilizing DLP-printed microstructured arrays to imprint on the PVDF membrane. The micropatterns generated on the PVDF were a result of post-imprinting solvent evaporation and non-solvent induced phase separation, which enhanced the antiwetting properties of PVDF significantly [252]. Li et al 3D printed peristome-mimetic structures and used PDMS replicating which had micro 'saw-tooth' arrays.…”

Section: Microlens Fabricationmentioning

confidence: 99%

Additive manufacturing of micropatterned functional surfaces: a review

Chivate,

Zhou

2024

Int. J. Extrem. Manuf.

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Over the course of millions of years, nature has evolved to ensure survival and presents us with a myriad of functional surfaces and structures that can boast high efficiency, multifunctionality, and sustainability. What makes these surfaces particularly practical and effective is the intricate micropatterning that enables selective interactions with microstructures. Most of these structures have been realized in the laboratory environment using numerous fabrication techniques by tailoring specific surface properties. Of the available manufacturing methods, additive manufacturing (AM) has created opportunities for fabricating these structures as the complex architectures of the naturally occurring microstructures that far exceed the traditional ways. This paper presents a concise overview of the fundamentals of such patterned microstructured surfaces, their fabrication techniques, and diverse applications. A comprehensive evaluation of micro fabrication methods is conducted, delving into their respective strengths and limitations. Greater emphasis is placed on AM processes like inkjet printing and micro digital light projection printing due to the innate advantages of these processes to additively fabricate high resolution structures with high fidelity and precision. The paper explores the various advancements in these processes in relation to their use in microfabrication and also presents the recent trends in applications like the fabrication of microlens arrays, microneedles, and tissue scaffolds.

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“…Until now, 3D printing membranes have been explicitly used for industrial waste treatments, especially for the degradation of organic pollutants, oily effluents, and heavy metals generated by manufacturing and pharmaceutical industries. , The existing methods for industrial wastewater treatment are based on physiochemical and biological methods which are energy intensive, have poor permeability, require complicated preand post-treatments, and lead to clogging . Not only for industrial waste, 3D printing has also been used for domestic water treatments and desalination applications for recycling and reusing undrinkable water. , In this regard, 3D printing offers a sustainable solution for domestic as well as industrial wastewater treatment by enacting a low-waste generating method with negligible chemical exposures in addition to being economical and precise, thereby addressing the gaps with existing wastewater techniques. Notably, 3D printing allows for the fabrication of even more resilient and ultrathin membranes with homogeneous pore diameters. − In addition, the layer-by-layer nanoscale printing of membranes would also enable well-organized pore sizes with robustness and preparation of intricate membrane structures with improved mass transfer, minimal fouling, and lower pressure loss. − Therefore, this integration of 3D printing technology to manufacture a variety of membrane modules offers a pathway toward improved wastewater treatment solutions and holds great potential in meeting the demands of sustainable water management.…”

Section: Introductionmentioning

confidence: 99%

“… 12 Not only for industrial waste, 3D printing has also been used for domestic water treatments and desalination applications for recycling and reusing undrinkable water. 14 , 15 In this regard, 3D printing offers a sustainable solution for domestic as well as industrial wastewater treatment by enacting a low-waste generating method with negligible chemical exposures in addition to being economical and precise, thereby addressing the gaps with existing wastewater techniques. Notably, 3D printing allows for the fabrication of even more resilient and ultrathin membranes with homogeneous pore diameters.…”

Section: Introductionmentioning

confidence: 99%

3D-Printed Materials for Wastewater Treatment

Roy Barman,

Gavit,

Chowdhury

et al. 2023

JACS Au

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The increasing levels of water pollution pose an imminent threat to human health and the environment. Current modalities of wastewater treatment necessitate expensive instrumentation and generate large amounts of waste, thus failing to provide ecofriendly and sustainable solutions for water purification. Over the years, novel additive manufacturing technology, also known as three-dimensional (3D) printing, has propelled remarkable innovation in different disciplines owing to its capability to fabricate customized geometric objects rapidly and cost-effectively with minimal byproducts and hence undoubtedly emerged as a promising alternative for wastewater treatment. Especially in membrane technology, 3D printing enables the designing of ultrathin membranes and membrane modules layer-by-layer with different morphologies, complex hierarchical structures, and a wide variety of materials otherwise unmet using conventional fabrication strategies. Extensive research has been dedicated to preparing membrane spacers with excellent surface properties, potentially improving the membrane filtration performance for water remediation. The revolutionary developments in membrane module fabrication have driven the utilization of 3D printing approaches toward manufacturing advanced membrane components, including biocarriers, sorbents, catalysts, and even whole membranes. This perspective highlights recent advances and essential outcomes in 3D printing technologies for wastewater treatment. First, different 3D printing techniques, such as material extrusion, selective laser sintering (SLS), and vat photopolymerization, emphasizing membrane fabrication, are briefly discussed. Importantly, in this Perspective, we focus on the unique 3D-printed membrane modules, namely, feed spacers, biocarriers, sorbents, and so on. The unparalleled advantages of 3D printed membrane components in surface area, geometry, and thickness and their influence on antifouling, removal efficiency, and overall membrane performance are underlined. Moreover, the salient applications of 3D printing technologies for water desalination, oil–water separation, heavy metal and organic pollutant removal, and nuclear decontamination are also outlined. This Perspective summarizes the recent works, current limitations, and future outlook of 3D-printed membrane technologies for wastewater treatment.

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Facile approach for designing a novel micropatterned antiwetting membrane by utilizing 3D printed molds for improved desalination performance

Cited by 13 publications

References 41 publications

Bioinspired and Post-Functionalized 3D-Printed Surfaces with Parahydrophobic Properties

Bioinspired and Post-Functionalized 3D-Printed Surfaces with Parahydrophobic Properties

Additive manufacturing of micropatterned functional surfaces: a review

3D-Printed Materials for Wastewater Treatment

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