Shape control synthesis of low-dimensional calcium sulfate

Bulletin of materials science

Ying-Ying Tang¹  Li-Xia Yang¹  Lai-Fen Qin¹  Ping Yin¹  Yan-Feng Meng¹  Ying-Xia Yang¹ 

[1] School of Chemistry and Materials Science, Ludong University, Yantai 264025, China$$School of Chemistry and Materials Science, Ludong University, Yantai 264025, ChinaSchool of Chemistry and Materials Science, Ludong University, Yantai 264025, China$$

关键词: Calcium sulfate;    nanomaterials;    crystal growth;    microstructure.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Calcium sulfate nanorods, nanowires, nanobelts and sheets had been synthesized via a facile solution reaction of CaCl₂ and H₂SO₄ in mixed solvents of ethanol/ð‘�?, ð‘�?-dimethylformamide and deionized water at 35°C. The results indicated that well-crystallized CaSO₄ nanomaterials with different morphology were obtained by adjusting the volume ratio of ethanol/ð‘�?, ð‘�?-dimethylformamide to deionized water and the reaction time. Samples prepared at 35°C in mixed solvents of 50 mL ethanol and 30 mL water for 1 min and 2 h showed nanowire and sheet morphology, respectively. While increasing the volume ratio of ethanol to deionized water to 78/2, only nanorods were obtained. When ð‘�?, ð‘�?-dimethylformamide was employed to substitute ethanol, the sample heating at 35°C for 2 h was composed of nanowires in 50 mL ð‘�?, ð‘�?-dimethylformamide and 30 mL water. Higher volume ratio of ð‘�?, ð‘�?-dimethylformamide to deionized water caused the formation of nanorods.

【 授权许可】

Unknown