Preparation processes and characterizations of alumina-coated alumina support layers and alumina-coated natural material-based support layers for microfiltration

Ha, Jang Hoon; Bukhari, Syed Zaighum Abbas; Lee, Jongman; Song, Inho; Park, Chanhyuk

doi:10.1016/j.ceramint.2016.05.181

Cited by 41 publications

(3 citation statements)

References 37 publications

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“…[ 68 ] The alumina‐coated natural materials such as pyrophyllite and kaolin are significant for the production of porous ceramic microfiltration membranes. For instance, heat‐treated alumina‐coated pyrophyllite–diatomite composite presented a smaller average PS (0.11 μm) and WP of about 2 × 10 2 L m −2 h −1 bar −1 at 1200–1400 °C, [ 69 ] as compared to alumina‐coated alumina. It is worth mentioning that heat treatment temperature is required to control the formation of alumina separation layer.…”

Section: Nature‐inspired‐based Ceramicsmentioning

confidence: 99%

Advances in Biomass and Nature‐Derived Ceramic Membranes and Their Environmental Applications in Wastewater Treatment

Jaleh,

Eslamipanah,

Nasri

et al. 2024

Adv Eng Mater

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The water shortage crisis and industrial progress have led to the upgrading of wastewater treatment processes. Hence, the remediation of wastewater and removal of contaminants is becoming a significant issue for environmentalists. However, the design and optimization of affordable treatment procedures with better removal performance is still a challenge for the researchers. Although porous ceramics with excellent porosity are appropriate for separation and adsorption of wastewater and water pollutants owing to their enlarge surface area, fluid permeability and capacity of water absorption, its production is an expensive process. Therefore, using low‐cost and benign compounds for the production of ceramics is an important issue. This review provides the application of the ceramic manufactured from natural sources and biomass for wastewater treatment and removal of pollutants. The effect of these compounds on the structure and efficiency of ceramics is discussed and suggestions are offered for further research.This article is protected by copyright. All rights reserved.

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Section: Nature‐inspired‐based Ceramicsmentioning

confidence: 99%

Advances in Biomass and Nature‐Derived Ceramic Membranes and Their Environmental Applications in Wastewater Treatment

Jaleh,

Eslamipanah,

Nasri

et al. 2024

Adv Eng Mater

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“…Nevertheless, there has been a significant decrease in the cost of ceramic membranes in recent years, which is expected to continue as demand increases. Moreover, by employing cost-effective natural materials such as kaolin, diabase, and dolomite, [137,138] the cost of ceramic membranes can be significantly reduced. Additionally, ceramic membranes are characterized by low operating expenses and long service life.…”

Section: Substrate Materials and Stabilitymentioning

confidence: 99%

MOF‐Based Photocatalytic Membrane for Water Purification: A Review

Chen,

Fei,

Wang

et al. 2023

Small

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Photocatalytic membranes can effectively integrate membrane separation and photocatalytic degradation processes to provide an eco‐friendly solution for efficient water purification. It is of great significance to develop highly efficient photocatalytic membranes driven by visible light to ensure the long‐term stability of membrane separation systems and the maximum utilization of solar energy. Metal‐organic framework (MOF) is an emerging photocatalyst with a well‐defined structure and tunable chemical properties, showing a broad application prospect in the construction of high‐performance photocatalytic membranes. Herein, this work provides a comprehensive review of recent advancements in MOF‐based photocatalytic membranes. Initially, this work outlines the main tailoring strategies that facilitate the enhancement of the photocatalytic activity of MOF‐based photocatalysts. Next, this work introduces commonly used methods for fabricating MOF‐based photocatalytic membranes. Subsequently, this work discusses the application and mechanisms of MOF‐based photocatalytic membranes toward organic pollutant degradation, metal ion removal, and membrane fouling mitigation. Finally, challenges in developing MOF‐based photocatalytic membranes and their practical applications are presented, while also pointing out future research directions toward overcoming these existing limitations.

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“…They are widely applied in industry, owing to their high surface area to volume ratio and multi-channel tubular configuration, which is based on monolithic porous support bodies with channels passing through them [9]. Previous studies have mainly focused on the fabrication of flat-disc-type membrane supports [10,11]. However, the successful operation of the cylindrical-tube-type of commercial filters remains an issue.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Al2O3 Multichannel Cylindrical-Tube-Type Microfiltration Membrane with Surface Modification

Naseer

Lee

et al. 2022

Applied Sciences

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Membrane technology has become a highly efficient separation technology for industrial applications over the past few decades. The key requirements for porous ceramic membranes are mechanical stability, controlled pore morphology, and high permeability. However, only a few studies have been conducted to optimise commercial membrane filters. In this study, a multichannel cylindrical-tube-type support with a microfiltration (MF) coating was prepared. To design a reliable porous structure and avoid shrinkage defects, the support layer was extruded using a combination of different-sized Al2O3 particles. The alumina microfiltration coating was developed using multiple dip-coatings to control the membrane thickness. An inorganic surface modification was conducted for the first time on an extruded membrane using a SiO2 sol-gel technique to enhance the antifouling properties. Furthermore, the membrane properties were investigated with scanning electron microscopy, mercury porosimetry, and a dead-end microfiltration system.

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Preparation processes and characterizations of alumina-coated alumina support layers and alumina-coated natural material-based support layers for microfiltration

Cited by 41 publications

References 37 publications

Advances in Biomass and Nature‐Derived Ceramic Membranes and Their Environmental Applications in Wastewater Treatment

Advances in Biomass and Nature‐Derived Ceramic Membranes and Their Environmental Applications in Wastewater Treatment

MOF‐Based Photocatalytic Membrane for Water Purification: A Review

Preparation of Al2O3 Multichannel Cylindrical-Tube-Type Microfiltration Membrane with Surface Modification

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