A drop-casting route toward porous alumina ceramic balls driven by pseudo-boehmite solution and sodium alginate crosslinked network

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2025-03-01 DOI:10.1016/j.ceramint.2024.12.287

Nansha Li , Bo Zhang , Xu Zhi , Jie Xu , Yuding Zhang , Kun Du , Wei Zhao

{"title":"A drop-casting route toward porous alumina ceramic balls driven by pseudo-boehmite solution and sodium alginate crosslinked network","authors":"Nansha Li , Bo Zhang , Xu Zhi , Jie Xu , Yuding Zhang , Kun Du , Wei Zhao","doi":"10.1016/j.ceramint.2024.12.287","DOIUrl":null,"url":null,"abstract":"<div><div>Geometric structure design is an effective strategy for the Al2O3 ceramics to develop their potential in many application regions. Here, we propose a facile drop casting route to take advantage of both the network (pseudo-boehmite, PB) and egg-box (sodium alginate, SA) structure to prepare porous Al2O3 balls, enabling these ceramics with macroscale size, network structure, and proper densities. With the Al2O3 particles as the framework materials, PB solution penetrated the calcium alginate network under proper acidic and Ca2+ ionic environment, facilitating the construction of the 3D porous structure for the aimed Al2O3 ceramic balls. After the frozen drying and TEOS immersion, Al2O3 ceramic balls can be obtained through a heat treatment at 1200 °C for 2 h, with 65.21 % porosity, 1.32 g/cm3 density and ∼3 mm diameter. Moreover, these obtained ceramic balls exhibit selective adsorption on the methylene blue (MB) dyes and reusability for times. Our proposed simple drop-casting method can provide Al2O3 ceramic balls with tailored ball sizes and porous network structure, illustrating prosperous prospects in the application fields of catalyst support, adsorption, separation and purification.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 7","pages":"Pages 8570-8577"},"PeriodicalIF":5.1000,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ceramics International","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0272884224059443","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}

引用次数: 0

Abstract

Geometric structure design is an effective strategy for the Al₂O₃ ceramics to develop their potential in many application regions. Here, we propose a facile drop casting route to take advantage of both the network (pseudo-boehmite, PB) and egg-box (sodium alginate, SA) structure to prepare porous Al₂O₃ balls, enabling these ceramics with macroscale size, network structure, and proper densities. With the Al₂O₃ particles as the framework materials, PB solution penetrated the calcium alginate network under proper acidic and Ca²⁺ ionic environment, facilitating the construction of the 3D porous structure for the aimed Al₂O₃ ceramic balls. After the frozen drying and TEOS immersion, Al₂O₃ ceramic balls can be obtained through a heat treatment at 1200 °C for 2 h, with 65.21 % porosity, 1.32 g/cm³ density and ∼3 mm diameter. Moreover, these obtained ceramic balls exhibit selective adsorption on the methylene blue (MB) dyes and reusability for times. Our proposed simple drop-casting method can provide Al₂O₃ ceramic balls with tailored ball sizes and porous network structure, illustrating prosperous prospects in the application fields of catalyst support, adsorption, separation and purification.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

期刊介绍： Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties. Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour. Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.