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Phase Transformation and Morphology Evolution Characteristics of Hydrothermally Prepared Boehmite Particles
Hai, Chunxi1,2; Zhang, Lijuan1,2; Zhou, Yuan1,2; Ren, Xiufeng1,2; Liu, Jianghua3; Zeng, Jinbo1,2; Ren, Hongbo3
2018-05-01
发表期刊JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
卷号28期号:3页码:643-650
文章类型Article
摘要Under hydrothermal condition, benefiting from dehydration and in situ nucleation processes, well-crystallized 3-dimensional (3D) boehmite nanoparticles with an average diameter of around 400 nm was directly converted from gibbsite phase in aluminum oxyhydroxide powder without adding any kinds of other assistants. Through investigation the influences of different factors, it is concluded that, hydrothermal treating temperature, time and initial slurry pH play an important role in obtaining well-crystallized boehmite particles. Besides XRD and FE-SEM, TG/DTA, FT-IR and Raman spectra were also employed to follow and confirm the formation of boehmite, which is useful for optimizing the synthesis condition. Moreover, after the hydrothermal treatment under the optimum condition, because as-prepared 3D boehmite nanoparticles have abundant surface oxygen anionic vacancies (F and F+-centers), thus endowing it optical band gap around 5.41 eV. This technique is significant and useful for developing a new opportunity for large scale production of well-crystallized boehmite powder with high purity from aluminum oxyhydroxide powder.
关键词Hydrothermal Treating Boehmite Gibbsite Surface Defects Phase Transformation Optical Properties
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]GAMMA-ALUMINA ; ALOOH ; NANORODS ; ROUTE ; NANOFLAKES ; FABRICATION ; GIBBSITE ; METAL ; WATER ; SOL
收录类别SCI
语种英语
WOS研究方向Polymer Science
WOS类目Polymer Science
WOS记录号WOS:000430169600008
引用统计
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6381
专题青海盐湖研究所知识仓储
盐湖资源与化学实验室
作者单位1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, 18th Xinning Rd, Xining 810008, Peoples R China
2.Key Lab Salt Lake Resources Chem Qinghai Prov, Xining, Qinghai, Peoples R China
3.Shengnuo Optoelect Technol QH Co Ltd, Xining 810000, Qinghai, Peoples R China
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Hai, Chunxi,Zhang, Lijuan,Zhou, Yuan,et al. Phase Transformation and Morphology Evolution Characteristics of Hydrothermally Prepared Boehmite Particles[J]. JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS,2018,28(3):643-650.
APA Hai, Chunxi.,Zhang, Lijuan.,Zhou, Yuan.,Ren, Xiufeng.,Liu, Jianghua.,...&Ren, Hongbo.(2018).Phase Transformation and Morphology Evolution Characteristics of Hydrothermally Prepared Boehmite Particles.JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS,28(3),643-650.
MLA Hai, Chunxi,et al."Phase Transformation and Morphology Evolution Characteristics of Hydrothermally Prepared Boehmite Particles".JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS 28.3(2018):643-650.
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