Rapid construction of ceramic microfiltration membranes with a gradient pore structure using UV-curable alumina suspension

Article Materials Science, Ceramics

Fabrication of alumina ceramics with functional gradient structures by digital light processing 3D printing technology

Yong Zeng et al.

Summary: Alumina ceramics with different unit numbers and gradient modes were prepared by DLP 3D printing technology, with GFCC-2 structure showing the best compressive strength and energy absorption potential among different unit numbers.

CERAMICS INTERNATIONAL (2022)

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Article Engineering, Environmental

Developing better ceramic membranes for water and wastewater Treatment: Where microstructure integrates with chemistry and functionalities

Qilin Gu et al.

Summary: This work provides a comprehensive review on the advantages and optimization methods of advanced ceramic membranes in water/wastewater treatment, including structure design, chemistry manipulation, and functionalization. Engineering design focusing on microstructure and surface chemistry for improved filtration efficiency and antifouling properties.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Engineering, Chemical

Pore-scale numerical study of intrinsic permeability for fluid flow through asymmetric ceramic microfiltration membranes

Shuang Song et al.

Summary: The study developed a numerical model to simulate fluid flow through an asymmetric ceramic MF membrane and found that pore size and porosity are key parameters determining membrane permeability. By deriving a new intrinsic permeability function, the model can accurately predict membrane permeability.

JOURNAL OF MEMBRANE SCIENCE (2022)

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Article Materials Science, Ceramics

Three-dimensional printing of high-flux ceramic membranes with an asymmetric structure via digital light processing

Ting Chen et al.

Summary: A novel method for preparing high-flux ceramic membranes through digital light processing (DLP) three-dimensional (3D) printing technology was proposed in this study, with systematic investigations on the effects of slurry properties and thermal treatment conditions. The obtained ceramic membranes exhibited uniform pore size distribution, high porosity, low tortuosity factor, and asymmetric structure, leading to high flux. DLP 3D printing showed potential as a strong candidate for the next generation of ceramic membrane fabrication technology.

CERAMICS INTERNATIONAL (2022)

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Article Engineering, Chemical

Optimization of UV-curable alumina suspension for digital light processing of ceramic membranes

Dongyu Wang et al.

Summary: A novel method for fabricating ceramic membranes using DLP 3D printing was proposed, optimizing the UV-curable alumina suspension for low viscosity. The effects of sintering process on microstructures, mechanical strength, and permeability were studied, resulting in high quality ceramic membranes with promising prospects for application.

JOURNAL OF MEMBRANE SCIENCE (2022)

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Article Multidisciplinary Sciences

Volumetric additive manufacturing of silica glass with microscale computed axial lithography

Joseph T. Toombs et al.

Summary: This article introduces a glass processing method for manufacturing complex microscopic structures. With microscale computed axial lithography, various microfluidic structures, micro-optical elements, and high-strength frameworks with different sizes and shapes can be fabricated.

SCIENCE (2022)

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Article Engineering, Environmental

Treatment of oily wastewaters by highly porous whisker-constructed ceramic membranes: Separation performance and fouling models

Hui Wu et al.

Summary: This study presents a new strategy for highly efficient treatment of both synthetic and real oily emulsions using inexpensive whisker-constructed ceramic membranes. These membranes show exceptional permeance, low energy input, and better oleophobicity in water. The study explores different operating parameters and uses classical Hermia models to understand the fouling mechanism between emulsion droplets and the membrane interface. The membranes also perform well in treating real acidic oily wastewater, outperforming most state-of-the-art ceramic membranes. This work introduces a new structure concept for highly permeable whisker-constructed porous ceramic membranes that can enable more efficient water separation applications.

WATER RESEARCH (2022)

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Article Engineering, Chemical

Hierarchically porous interlayer for highly permeable and fouling-resistant ceramic membranes in water treatment

Zhixiao Zhang et al.

Summary: Ceramic membranes are increasingly used in water and wastewater treatment due to their performance and long-term benefits. In this study, a ceramic membrane with a hierarchically porous interlayer was successfully produced, showing significantly increased water flux and delayed membrane fouling process.

SEPARATION AND PURIFICATION TECHNOLOGY (2022)

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Article Chemistry, Physical

3D-printed controllable gradient pore superwetting structures for high temperature efficient oil-water separation

Zhipeng Jin et al.

Summary: The research developed a ceramic material with gradient pore structure and superhydrophobic/superoleophilic properties using 3D printing for efficient oil-water separation. The material can support a flux up to 25434 L/m(2)h with 40% higher efficiency than analogous structure with straight pores. The oil-water separation performance was maintained at 97.4% at 200 degrees C.

JOURNAL OF MATERIOMICS (2021)

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Article Biochemistry & Molecular Biology

Enhanced Performance of Fly Ash-Based Supports for Low-Cost Ceramic Membranes with the Addition of Bauxite

Wan Fan et al.

Summary: In this study, low-cost fly ash-based ceramic supports with enhanced performance were prepared by adding bauxite. The optimized ceramic supports exhibited high pure water permeance and bending strength, and also showed excellent resistance to acid and alkali, providing a potential route for the preparation of ceramic membrane supports with characteristics of low cost and high performance.

MEMBRANES (2021)

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Review Materials Science, Ceramics

Influencing factors on the performance of tubular ceramic membrane supports prepared by extrusion

Dehua Liang et al.

Summary: Inorganic ceramic membrane offers excellent performance and is applied in various fields. The preparation of support by extrusion is a common method, with factors like raw material types, particle size, extrusion parameters, pore-forming agents, and sintering temperature influencing product performance.

CERAMICS INTERNATIONAL (2021)

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Article Materials Science, Ceramics

Development of high strength, porous mullite ceramic hollow fiber membrane for treatment of oily wastewater

Mohamed Farag Twibi et al.

Summary: A high-strength, porous ceramic hollow fiber membrane derived from mullite-kaolinite powder was successfully fabricated for efficient oil-wastewater separation. The membrane exhibited superhydrophilicity and low cost, making it suitable for various water treatment applications.

CERAMICS INTERNATIONAL (2021)

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Article Materials Science, Characterization & Testing

The effect of metalation processes on polymer morphology and conductivity properties

Oguz Yunus Saribiyik et al.

Summary: An insoluble three dimensional porous polymeric structure and metal complexes were synthesized by condensation reactions of meto(m)-phenylenediamine, para(p)-phenylenediamine, and glutaraldehyde. Analytical and spectroscopic methods revealed that the shape, size, and photoluminescence properties of the compounds, especially conductivity, were significantly altered after metalation processes.

POLYMERS & POLYMER COMPOSITES (2021)

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Article Multidisciplinary Sciences

Three-dimensional nanoprinting via charged aerosol jets

Wooik Jung et al.

Summary: Three-dimensional (3D) printing has revolutionized manufacturing processes in various fields. A new technique allows direct printing of metal nanostructures with flexible geometries and feature sizes down to hundreds of nanometres, using various materials.

NATURE (2021)

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Article Materials Science, Ceramics

Fabrication of high permeability SiC ceramic membrane with gradient pore structure by one-step freeze-casting process

Lijuan Huang et al.

Summary: By optimizing the preparation process, the multilayer microstructures, mechanical properties, and filtering performances of freeze-casting SiC ceramic membranes can be controlled. Increasing the solid content narrows the directional pore channels and improves mechanical properties, while increasing coarse particle content thickens separation layers and transition layers to enhance permeability efficiency.

CERAMICS INTERNATIONAL (2021)

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Review Engineering, Chemical

Porous Membrane Reactors for Liquid-Phase Heterogeneous Catalysis

Hong Jiang et al.

Summary: This review summarizes the application of porous membrane reactors in liquid-phase catalytic reactions, categorizing them into different types and discussing their respective research progress. It also examines the impacts of reactor design, preparation methods, and operating parameters on reaction efficiency.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2021)

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Article Engineering, Chemical

3D Printing of Integrated Ceramic Membranes by the DLP Method

Yaoyao Ye et al.

Summary: In this study, high-precision integrated ceramic membranes were fabricated through one-step photopolymerization 3D printing, featuring double-layer membranes with microsized patterns and pores. By adjusting the printing parameters, a high-resolution model was achieved, allowing for efficient treatment of oil-in-water emulsions.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2021)

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Article Engineering, Chemical

Effective and efficient fabrication of high-flux tight ZrO2 ultrafiltration membranes using a nanocrystalline precursor

Juanjuan Wen et al.

Summary: This study prepared tight ZrO2 ultrafiltration membranes with narrow pore size distributions using a nanocrystalline precursor, effectively reducing pollution and controlling permeance by adjusting the sintering temperature. Results showed high BSA molecule retention and stable permeance, indicating potential for protein separation applications.

JOURNAL OF MEMBRANE SCIENCE (2021)

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Article Materials Science, Ceramics