Details

Autor(en) / Beteiligte

• Xiao, Jian-Fei
• Nai, Xue-Ying
• Gou, Sheng-Lian
• Ye, Jun-Wei
• Dong, Ya-Ping
• Li, Wu

Titel

Mechanism of Potassium Acid Phthalate in Stimulating Formation of Magnesium Hydroxide Sulfate Hydrate Nanowires

Ist Teil von

• Wu ji cai liao xue bao, 2019-11, Vol.34 (11), p.1181

Ort / Verlag

Beijing: Chinese Academy of Sciences

Erscheinungsjahr

2019

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• Magnesium hydroxide sulfate hydrate（MOS） nanowires were prepared with hydrothermal method by using potassium acid phthalate（KHpht） as the complexant. Complexation formed by pht2– and Mg2+ in this preparation system was analyzed by potentiometric titration. The effect of pht2– adsorption on MOS nanowires was investigated by X-ray photoelectron spectroscopy（XPS）, Fourier transform infrared spectrometer（FT-IR） and transmission electron microscopy（TEM）. These results show that pht2– complexes with Mg2+ in the reaction system substantially decreases free Mg2+ concentration and solution supersaturation. Chemical bonding between Mg2+ and pht2– exists on the surface of MOS crystal. Owing to the different configuration of the crystal lattice, pht2– adsorption on the lateral growth plane is more preferential than that on the axial growth plane, resulting in the formation with ratio of MOS nanowires.