Li2Si2O5 nano-brush coated carbon cloth as a potential solution for wastewater treatment

Sun, Bo; Chen, Wenge; Zhang, Hui; Elmarakbi, Ahmed; Fu, Yong Qing

doi:10.1016/j.seppur.2022.123085

Cited by 6 publications

(3 citation statements)

References 97 publications

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“…Hence, it is necessary to develop a more advanced technique to prepare porous LD glass–ceramics possessing more uniform pore structures. H. Zhang et al also found that LD crystals had great advantages for the effective adsorption of heavy metal ions [ 16 , 17 ] and methylene blue [ 10 , 18 ], indicating their potential use in wastewater treatment. However, developed LD-related materials only include nanomaterials [ 10 , 16 , 18 ], and LD nano-brush-coated cloths [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

“…H. Zhang et al also found that LD crystals had great advantages for the effective adsorption of heavy metal ions [ 16 , 17 ] and methylene blue [ 10 , 18 ], indicating their potential use in wastewater treatment. However, developed LD-related materials only include nanomaterials [ 10 , 16 , 18 ], and LD nano-brush-coated cloths [ 17 ]. The lack of a self-supporting structure limits their durability in industrial applications.…”

Section: Introductionmentioning

confidence: 99%

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Porous Lithium Disilicate Glass–Ceramics Prepared by Cold Sintering Process Associated with Post-Annealing Technique

Lyu,

Seo,

Han

et al. 2024

Materials

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Using melt-derived LD glass powders and 5–20 M NaOH solutions, porous lithium disilicate (Li2Si2O5, LD) glass–ceramics were prepared by the cold sintering process (CSP) associated with the post-annealing technique. In this novel technique, H2O vapor originating from condensation reactions between residual Si–OH groups in cold-sintered LD glasses played the role of a foaming agent. With the increasing concentration of NaOH solutions, many more residual Si–OH groups appeared, and then rising trends in number as well as size were found for spherical pores formed in the resultant porous LD glass–ceramics. Correspondingly, the total porosities and average pore sizes varied from 25.6 ± 1.3% to 48.6 ± 1.9% and from 1.89 ± 0.68 μm to 13.40 ± 10.27 μm, respectively. Meanwhile, both the volume fractions and average aspect ratios of precipitated LD crystals within their pore walls presented progressively increasing tendencies, ranging from 55.75% to 76.85% and from 4.18 to 6.53, respectively. Young’s modulus and the hardness of pore walls for resultant porous LD glass–ceramics presented remarkable enhancement from 56.9 ± 2.5 GPa to 79.1 ± 2.1 GPa and from 4.6 ± 0.9 GPa to 8.1 ± 0.8 GPa, whereas their biaxial flexural strengths dropped from 152.0 ± 6.8 MPa to 77.4 ± 5.4 MPa. Using H2O vapor as a foaming agent, this work reveals that CSP associated with the post-annealing technique is a feasible and eco-friendly methodology by which to prepare porous glass–ceramics.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Porous Lithium Disilicate Glass–Ceramics Prepared by Cold Sintering Process Associated with Post-Annealing Technique

Lyu,

Seo,

Han

et al. 2024

Materials

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“…Surface complexation and ion exchanges have been confirmed as the two main adsorption mechanisms. This material exhibited exceptional absorption properties in experiments involving wastewater treatment [8]. The carbon cloth covered by porous Li2Si2O5 composite material displayed good adsorption of metal ions in wastewater, with removal rates above 88% and have highest removal rate (98.05%) for Al3+ [8].…”

Section: Introductionmentioning

confidence: 99%

Application of Nanomaterials in Wastewater Treatment

Feng

2023

MATEC Web Conf.

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Water scarcity is one of the current problems that people need to solve, and wastewater treatment is one of the effective ways to solve it. However, traditional wastewater treatment methods are inefficient, and pollutants cannot be removed entirely. Nanotechnology can effectively address the above issues and its application in wastewater treatment has been researched extensively. This paper introduces nano-adsorbents, nano-photocatalysts and nanomembranes, which are all considered to have a promising prospect in wastewater treatment. Nano-adsorbents are classified as carbon-based nanomaterials, metalbased nanomaterials, nano-polymer and nano-zeolite adsorbents depending on the type of materials, mainly for adsorbing heavy metal ions. Nano-photocatalysts are good at removing bacteria and dyes from water and titanium dioxide (TiO2) is the commonly used material. Nanomembranes are divided into nanofiltration membranes, nanocomposite membranes, nanofiber membranes and aquaporin biomimetic membranes. Metal ions and organic pollutants can be separated by adding different materials into the membrane. The addition of molecular receptors to nanofiber membranes could use in the selective separation of some ions. The recovery of used nano-adsorbents and fouling resistance of nanomembranes are currently the main challenges for nanotechnology in wastewater treatment

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Structure-Controlled Synthesis of Sodium Trititanate and Hexatitanate Nanorods and their Adsorption Properties for Ni2+and Pb2+ Ions from Aqueous Solutions

Hao,

Wang,

Yin

2024

Water Air Soil Pollut

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Li2Si2O5 nano-brush coated carbon cloth as a potential solution for wastewater treatment

Cited by 6 publications

References 97 publications

Porous Lithium Disilicate Glass–Ceramics Prepared by Cold Sintering Process Associated with Post-Annealing Technique

Porous Lithium Disilicate Glass–Ceramics Prepared by Cold Sintering Process Associated with Post-Annealing Technique

Application of Nanomaterials in Wastewater Treatment

Structure-Controlled Synthesis of Sodium Trititanate and Hexatitanate Nanorods and their Adsorption Properties for Ni2+and Pb2+ Ions from Aqueous Solutions

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