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Effect of alcohols additives on hydrothermal formation of magnesium hydroxide sulfate hydrate whiskers
Author(s) -
Zhao Wenpeng,
Gao Chuanhui,
Wang Ting,
Wu Yumin
Publication year - 2015
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201500115
Subject(s) - whiskers , crystallinity , ethylene glycol , hydrothermal circulation , hydrate , magnesium , chemical engineering , alcohol , chemistry , hydroxide , materials science , inorganic chemistry , nuclear chemistry , mineralogy , organic chemistry , composite material , crystallography , engineering
Two different organic alcohols, ethylene glycol and 1, 2‐propanediol, were used in hydrothermal formation of MgSO 4 ·5Mg(OH) 2 ·2H 2 O (MHSH) whiskers. Compared with the MHSH whiskers without alcohols, the crystallinity and defect of products were improved. It could also be observed that not only aspect ratio but also crystallinity and purity of the products were improved when 1, 2‐propanediol was used. A reasonable model was proposed to explain the growth process derived from the organic alcohol. In addition, the room temperature photoluminescence (PL) indicated that the spectrum intensity of MHSH whiskers used 1, 2‐propanediol was also significantly improved.