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[1]杨凤玲,刘云飞,吕忆农,等.NaSm(MoO4)2 微晶的微波水热法可控合成[J].南京工业大学学报(自然科学版),2015,37(02):17-22.[doi:10.3969/j.issn.1671-7627.2015.02.004]
 YANG Fengling,LIU Yunfei,LÜ Yinong,et al.Controlled synthesis of different morphologies of NaSm(MoO4)2 microcrystals by microwave-hydrothermal method[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2015,37(02):17-22.[doi:10.3969/j.issn.1671-7627.2015.02.004]
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NaSm(MoO4)2 微晶的微波水热法可控合成()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
37
期数:
2015年02期
页码:
17-22
栏目:
出版日期:
2015-03-20

文章信息/Info

Title:
Controlled synthesis of different morphologies of NaSm(MoO4)2 microcrystals by microwave-hydrothermal method
文章编号:
1671-7627(2015)02-0017-06
作者:
杨凤玲12刘云飞1吕忆农1陈虎1张掇青1伍宏明1
1.南京工业大学 材料科学与工程学院 材料化学工程国家重点实验室,江苏 南京 210009; 2.盐城工学院 材料工程学院,江苏 盐城 224051
Author(s):
YANG Fengling12LIU Yunfei1LÜ Yinong1CHEN Hu1ZHANG Duoqing1WU Hongming1
1.State Key Laboratory of Materials-Oriented Chemical Engineering,College of Materials Science and Engineering,Nanjing Tech University,Nanjing 210009,China; 2.School of Materials Engineering,Yancheng Institute of Technology,Yancheng 224051,China
关键词:
NaSm(MoO4)2 微波水热法 形貌可控
Keywords:
NaSm(MoO4)2 microwave-hydrothermal method morphology controlled
分类号:
TB39
DOI:
10.3969/j.issn.1671-7627.2015.02.004
文献标志码:
A
摘要:
采用微波水热法合成片状、花状和八面体状的四方相NaSm(MoO4)2微晶,考察初始溶液pH、合成温度、反应物浓度与合成时间对产物晶相、形貌和尺寸的影响。利用X线衍射仪和扫描电子显微镜对产物进行表征。结果表明:初始溶液pH对产物的形貌影响显著,pH为2.0和3.0时,180 ℃微波加热1 h,可分别合成出片状和花状的NaSm(MoO4)2微晶。pH为1.5时,150 ℃微波加热1 h,可合成出形貌规整、尺寸均一的八面体状NaSm(MoO4)2微晶。在pH为1.5的条件下进一步升高合成温度或增加反应物浓度,八面体晶粒尺寸呈下降趋势。随着合成时间的延长,八面体颗粒逐渐分解并团聚成不规则多面体,提出了八面体状NaSm(MoO4)2微晶的形貌演变过程。
Abstract:
Well-crystallized tetragonal NaSm(MoO4)2 microcrystals,including flake-like,flower-like and octahedron-like,were synthesized by a microwave-hydrothermal method.The effects of reaction parameters,such as the pH value of initial solution,the reaction temperature,the reactant concentration and the reaction time on the phase,morphology and size of NaSm(MoO4)2 were investigated.The products were characterized by X-ray diffraction and scanning electron microscope.Results showed that the pH value of initial solution played an important role on the morphology of the products.The flake-like and flower-like NaSm(MoO4)2 particles were obtained by microwave-heated at 180 ℃ for 1 h at the pH 2.0 and 3.0,respectively.The octahedral particles with uniform morphology and size were observed by microwave-heated at 150 ℃ for 1 h at the pH 1.5.When the reaction temperature or the reactant concentration was further increased,the size of the octahedrons decreased.With the further extension of the reaction time,the octahedrons gradually decomposed and aggregated into irregular polyhedron-like particles.The formation process of the octahedron-like NaSm(MoO4)2 microcrystals was proposed.

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相似文献/References:

[1]夏丽莉,刘云飞,吕忆农,等.CaMoO4微晶的微波水热法可控合成[J].南京工业大学学报(自然科学版),2012,34(03):88.[doi:10.3969/j.issn.1671-7627.2012.03.018]
 XIA Lili,LIU Yunfei,LÜ,et al.Controlled synthesis of different morphologies of CaMoO4 microcrystals by microwave-hydrothermal method[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2012,34(02):88.[doi:10.3969/j.issn.1671-7627.2012.03.018]

备注/Memo

备注/Memo:
收稿日期:2014-04-10
基金项目:江苏高校优势学科建设工程; 长江学者和创新团队发展计划(IRT1146)
作者简介:杨凤玲(1978—),女,江苏宝应人,讲师,博士生,主要研究方向为稀土发光材料; 吕忆农(联系人),教授,E-mail:yinonglu@njtech.edu.cn.
引用本文:杨凤玲,刘云飞,吕忆农,等.NaSm(MoO4)2 微晶的微波水热法可控合成[J].南京工业大学学报:自然科学版,2015,37(2):17-22..
更新日期/Last Update: 2015-02-20