Facile sonochemical preparation of γ-AlOOH nanopowder via corrosion and erosion of Al coarse particles

IF 4.2 2区 工程技术 Q2 ENGINEERING, CHEMICAL
Toshiki Yamanaka, Yamato Hayashi, Hirotsugu Takizawa
{"title":"Facile sonochemical preparation of γ-AlOOH nanopowder via corrosion and erosion of Al coarse particles","authors":"Toshiki Yamanaka,&nbsp;Yamato Hayashi,&nbsp;Hirotsugu Takizawa","doi":"10.1016/j.apt.2025.104890","DOIUrl":null,"url":null,"abstract":"<div><div>Boehmite (γ-AlOOH) nanopowders were facilely synthesized at room temperature by sonochemical corrosion and erosion of Al particles. After 24 h of sonication in N<sub>2</sub>H<sub>4</sub>·H<sub>2</sub>O, Al powders were completely converted into γ-AlOOH nanopowders. The obtained γ-AlOOH particles had an average diameter of 158.2 nm in 0.1 M NaOH aqueous solution, and a specific surface area of 360.9 m<sup>2</sup>/g. In contrast, γ-AlOOH powders were not obtained after magnetic stirring of Al powders in N<sub>2</sub>H<sub>4</sub>·H<sub>2</sub>O at 30 °C, indicating that sonochemical effects (hotspots, microjets and shock waves) significantly facilitated the corrosion reaction and surface erosion of Al, resulting in the formation of γ-AlOOH nanocrystals. The isoelectric point and adsorption rate of γ-AlOOH toward Congo red (CR) were also investigated. γ-AlOOH nanopowders exhibited an adsorption capacity of 100.0 mg/g after 60 min of stirring with a 100 mg/L CR solution at pH 8.70. The sonochemical process involving Al powders and N<sub>2</sub>H<sub>4</sub>·H<sub>2</sub>O is preferable synthetic route for preparing γ-AlOOH nanopowders due to its simplicity.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 6","pages":"Article 104890"},"PeriodicalIF":4.2000,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Powder Technology","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0921883125001116","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0

Abstract

Boehmite (γ-AlOOH) nanopowders were facilely synthesized at room temperature by sonochemical corrosion and erosion of Al particles. After 24 h of sonication in N2H4·H2O, Al powders were completely converted into γ-AlOOH nanopowders. The obtained γ-AlOOH particles had an average diameter of 158.2 nm in 0.1 M NaOH aqueous solution, and a specific surface area of 360.9 m2/g. In contrast, γ-AlOOH powders were not obtained after magnetic stirring of Al powders in N2H4·H2O at 30 °C, indicating that sonochemical effects (hotspots, microjets and shock waves) significantly facilitated the corrosion reaction and surface erosion of Al, resulting in the formation of γ-AlOOH nanocrystals. The isoelectric point and adsorption rate of γ-AlOOH toward Congo red (CR) were also investigated. γ-AlOOH nanopowders exhibited an adsorption capacity of 100.0 mg/g after 60 min of stirring with a 100 mg/L CR solution at pH 8.70. The sonochemical process involving Al powders and N2H4·H2O is preferable synthetic route for preparing γ-AlOOH nanopowders due to its simplicity.

Abstract Image

通过腐蚀和侵蚀Al粗颗粒制备γ-AlOOH纳米粉体
采用声化学腐蚀和侵蚀Al颗粒的方法,在室温下制备了薄水铝石(γ-AlOOH)纳米粉体。在N2H4·H2O中超声作用24 h后,Al粉末完全转化为γ-AlOOH纳米粉末。所得γ-AlOOH颗粒在0.1 M NaOH水溶液中的平均粒径为158.2 nm,比表面积为360.9 m2/g。而Al粉末在N2H4·H2O中磁搅拌30°C后,并没有得到γ-AlOOH粉末,说明声化学效应(热点、微射流和激波)显著促进了Al的腐蚀反应和表面侵蚀,从而形成了γ-AlOOH纳米晶体。研究了γ-AlOOH对刚果红(CR)的等电点和吸附速率。在pH为8.70的100 mg/L CR溶液中搅拌60 min后,γ-AlOOH纳米粉体的吸附量为100.0 mg/g。Al粉与N2H4·H2O的声化学合成工艺简单,是制备γ-AlOOH纳米粉体的较好方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Advanced Powder Technology
Advanced Powder Technology 工程技术-工程:化工
CiteScore
9.50
自引率
7.70%
发文量
424
审稿时长
55 days
期刊介绍: The aim of Advanced Powder Technology is to meet the demand for an international journal that integrates all aspects of science and technology research on powder and particulate materials. The journal fulfills this purpose by publishing original research papers, rapid communications, reviews, and translated articles by prominent researchers worldwide. The editorial work of Advanced Powder Technology, which was founded as the International Journal of the Society of Powder Technology, Japan, is now shared by distinguished board members, who operate in a unique framework designed to respond to the increasing global demand for articles on not only powder and particles, but also on various materials produced from them. Advanced Powder Technology covers various areas, but a discussion of powder and particles is required in articles. Topics include: Production of powder and particulate materials in gases and liquids(nanoparticles, fine ceramics, pharmaceuticals, novel functional materials, etc.); Aerosol and colloidal processing; Powder and particle characterization; Dynamics and phenomena; Calculation and simulation (CFD, DEM, Monte Carlo method, population balance, etc.); Measurement and control of powder processes; Particle modification; Comminution; Powder handling and operations (storage, transport, granulation, separation, fluidization, etc.)
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信