Structures, formation mechanisms, and ion exchange properties of alpha-, beta-, and gamma-Na2TiO3
Meng, Fancheng1,2,3; Liu, Yahui1,2; Xue, Tianyan1,2; Su, Qian2,3; Wang, Weijing1,2; Qi, Tao1,2
2016
发表期刊RSC Advances
ISSN2046-2069
卷号6期号:113页码:112625-112633
摘要

alpha-, beta-, and gamma-Na2TiO3 were prepared from rutile TiO2 and molten NaOH. Three models of beta-Na2TiO3 with space groups of R (3) over bar, P (1) over bar, and P (3) over bar were proposed, and the R (3) over bar model was refined from the experimental data by using the Rietveld method. The structure of beta-Na2TiO3 is a superstructure of alpha-Na2TiO3 and supposedly contains Ti6O19 clusters. The structures of Na2TiO3 were mainly determined by the particle sizes of rutile and the reaction temperatures. alpha-Na2TiO3 could be prepared from fine rutile particles (D(50) < 25.8 mu m) and molten NaOH at 500 degrees C or quenching the melt of Na2TiO3 at 1000 degrees C quickly. gamma- and beta-Na2TiO3 were the thermodynamically stable phases of Na2TiO3 at around 500 degrees C and above 800 degrees C, respectively. alpha-Na2TiO3 was formed far beyond the thermodynamically stable state. The Na+ in alpha-Na2TiO3 was easier to exchange with H+ in water than that in beta or gamma phases. They all converted to amorphous phases after the 2nd, 6th, and 4th water washings at 25 degrees C, respectively. beta-Na2TiO3 followed similar paths of ion exchange as alpha-Na2TiO3, which was different from that of gamma-Na2TiO3.

文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1039/c6ra16984h
收录类别SCI
语种英语
关键词[WOS]SODIUM TITANATE NANOWIRES ; TITANIUM-DIOXIDE PIGMENT ; FURNACE MOLTEN SLAG ; NANOSTRUCTURED MATERIALS ; SORPTION BEHAVIOR ; CRYSTAL-STRUCTURE ; CATION-EXCHANGER ; OXIDE INDUSTRY ; TIO2 ; NANOTUBES
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
项目资助者National Basic Research Program of China(2013CB632604) ; National Science Foundation for Distinguished Young Scholars of China(51125018) ; Key Research Program of the Chinese Academy of Sciences(KGZD-EW-201-2) ; National Natural Science Foundation of China(51374191 ; 51402303)
WOS记录号WOS:000389708700115
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21844
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
推荐引用方式
GB/T 7714
Meng, Fancheng,Liu, Yahui,Xue, Tianyan,et al. Structures, formation mechanisms, and ion exchange properties of alpha-, beta-, and gamma-Na2TiO3[J]. RSC Advances,2016,6(113):112625-112633.
APA Meng, Fancheng,Liu, Yahui,Xue, Tianyan,Su, Qian,Wang, Weijing,&Qi, Tao.(2016).Structures, formation mechanisms, and ion exchange properties of alpha-, beta-, and gamma-Na2TiO3.RSC Advances,6(113),112625-112633.
MLA Meng, Fancheng,et al."Structures, formation mechanisms, and ion exchange properties of alpha-, beta-, and gamma-Na2TiO3".RSC Advances 6.113(2016):112625-112633.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Structures, formatio(2993KB)期刊论文出版稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Meng, Fancheng]的文章
[Liu, Yahui]的文章
[Xue, Tianyan]的文章
百度学术
百度学术中相似的文章
[Meng, Fancheng]的文章
[Liu, Yahui]的文章
[Xue, Tianyan]的文章
必应学术
必应学术中相似的文章
[Meng, Fancheng]的文章
[Liu, Yahui]的文章
[Xue, Tianyan]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Structures, formation mechanisms, and ion exchange properties of alpha-, beta-, and gamma-Na2TiO3.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。