Effect of Mg2+ on hydrothermal formation of α-CaSO4·0.5H2O whiskers with high aspect ratios

The effect of Mg(2+) on hydrothermal formation of α-CaSO4·0.5H2O whiskers with high aspect ratios was investigated in this paper. α-CaSO4·0.5H2O whiskers with a preferential growth along the c axis and an average aspect ratio up to 370 were synthesized using hydrothermal treatment of CaSO4·2H2O prec...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 30(2014), 32 vom: 19. Aug., Seite 9804-10
1. Verfasser: Hou, Sichao (VerfasserIn)
Weitere Verfasser: Wang, Jing, Wang, Xiaoxue, Chen, Haoyuan, Xiang, Lan
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2014
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a The effect of Mg(2+) on hydrothermal formation of α-CaSO4·0.5H2O whiskers with high aspect ratios was investigated in this paper. α-CaSO4·0.5H2O whiskers with a preferential growth along the c axis and an average aspect ratio up to 370 were synthesized using hydrothermal treatment of CaSO4·2H2O precursor in the presence of 1.97 × 10(-3) mol·L(-1) MgCl2. The preferential adsorption of Mg(2+) on the negative (200), (400), and (020) facets was confirmed by EDS, XPS, and zeta potential measurements. ATR-FTIR analysis revealed the ligand adsorption of Mg(2+) on the surface of α-CaSO4·0.5H2O. The doping of Mg(2+) in α-CaSO4·0.5H2O whiskers was confirmed by the XRD analysis. The experimental results indicated that the adsorption and doping of Mg(2+) promoted the 1-D growth of α-CaSO4·0.5H2O whiskers, leading to the formation of whiskers with high aspect ratios 
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700 1 |a Wang, Jing  |e verfasserin  |4 aut 
700 1 |a Wang, Xiaoxue  |e verfasserin  |4 aut 
700 1 |a Chen, Haoyuan  |e verfasserin  |4 aut 
700 1 |a Xiang, Lan  |e verfasserin  |4 aut 
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