3D printed geopolymer adsorption sieve for removal of methylene blue and adsorption mechanism

Jin, Haize; Zhang, Yuhang; Zhang, Xingxing; Chang, M. C.; Li, Cuixia; Lu, Xuefeng; Wang, Qikun

doi:10.1016/j.colsurfa.2022.129235

Cited by 25 publications

(4 citation statements)

References 44 publications

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“…The wavelengths ranging from 400 to 4000 cm −1 were frequently utilized for FT-IR analysis. Jin et al ( 2022 ) conducted the FT-IR analysis of MB dye, 3D printing geopolymer, and MB-loading geopolymer. The authors reported that the band at 1384.6 cm −1 belongs to the symmetric stretching vibration of C–N, indicating MB adsorption.…”

Section: Application Of Clays and Geopolymers In Water Treatmentsmentioning

confidence: 99%

“…Additionally, the lone pair electrons in [AlO4]5 − may form n-π interaction with delocalized π bonds in MB. The UV–Vis DRS has suggested the formation of an n -π interaction based on the emergence of an absorption band located at about 606 nm, which is likely due to n → π * electron transitions involving lone pair electrons in the [AlO4] −5 ion (Zhang et al, 2017 ) of 3D printed geopolymer (Jin et al, 2022 ).…”

Section: Application Of Clays and Geopolymers In Water Treatmentsmentioning

confidence: 99%

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A comprehensive review on sustainable clay-based geopolymers for wastewater treatment: circular economy and future outlook

Maged

El-Fattah

Kamel

et al. 2023

Environ Monit Assess

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In the present era of significant industrial development, the presence and dispersal of countless water contaminants in water bodies worldwide have rendered them unsuitable for various forms of life. Recently, the awareness of environmental sustainability for wastewater treatment has increased rapidly in quest of meeting the global water demand. Despite numerous conventional adsorbents on deck, exploring low-cost and efficient adsorbents is interesting. Clays and clays-based geopolymers are intensively used as natural, alternative, and promising adsorbents to meet the goals for combating climate change and providing low carbon, heat, and power. In this narrative work, the present review highlights the persistence of some inorganic/organic water pollutants in aquatic bodies. Moreover, it comprehensively summarizes the advancement in the strategies associated with synthesizing clays and their based geopolymers, characterization techniques, and applications in water treatment. Furthermore, the critical challenges, opportunities, and future prospective regarding the circular economy are additionally outlined. This review expounded on the ongoing research studies for leveraging these eco-friendly materials to address water decontamination. The adsorption mechanisms of clays-based geopolymers are successfully presented. Therefore, the present review is believed to deepen insights into wastewater treatment using clays and clays-based geopolymers as a groundbreaking aspect in accord with the waste-to-wealth concept toward broader sustainable development goals.

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Section: Application Of Clays and Geopolymers In Water Treatmentsmentioning

confidence: 99%

Section: Application Of Clays and Geopolymers In Water Treatmentsmentioning

confidence: 99%

A comprehensive review on sustainable clay-based geopolymers for wastewater treatment: circular economy and future outlook

Maged

El-Fattah

Kamel

et al. 2023

Environ Monit Assess

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show abstract

“…Geopolymer inks, consisting of ceramic powders embedded in alkaline solution, have recently been introduced as alternative pseudoplastic pastes for DIW. The viscosity increase, after extrusion, is a consequence of the progression of geopolymerization reactions [ 17 ]. We will show that waste-derived glass powders, suspended in alkaline solution, provide a further example of ink suitable for DIW, even in the complete absence of organic additives, thus realizing an ‘inorganic DIW’ process.…”

Section: Introductionmentioning

confidence: 99%

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

Mahmoud,

Kraxner,

Mehta

et al. 2024

Heliyon

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“…The formation of zeolite-like gels is promising in the perspective of the adsorption of organic molecules, such as industrial dyes and related compounds, recognized as key contaminants of waters. The adsorption of dyes is controlled by the overlapping contributions of the microstructure (depending on the surface area and porosity) and surface functional groups [ 18 , 21 ]. From this perspective, alkali-activated materials show a great potential [ 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2022

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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.

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3D printed geopolymer adsorption sieve for removal of methylene blue and adsorption mechanism

Cited by 25 publications

References 44 publications

A comprehensive review on sustainable clay-based geopolymers for wastewater treatment: circular economy and future outlook

A comprehensive review on sustainable clay-based geopolymers for wastewater treatment: circular economy and future outlook

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

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

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