Surfactant Assisted Hydrothermal Synthesis of CaSO4·0.5H2O Whiskers from Phosphogypsum Solid Waste

摘要：

　　Phosphogypsum (PG),the solid waste derived from phosphoric acid industry,is recognized as an environmental pollutant.Application of phosphogypsum in the synthesis of calcium sulfate whisker not only reduces environment pollution,but also creates high value-added products.The CaSO4·0.5H2O whiskers were successfully prepared in the presence of hexadecyl trimethyl ammonium bromide (CTAB) by hydrothermal synthesis method.The reaction template of cationic surfactant CTAB ensures whiskers growth along one direction.The results showed that the best concentration of CTAB is 0.50 wt%,and the whiskers were characterized by scanning electron microscopy (SEM) with large aspect ratio and uniform morphology.

关键词： phosphogypsum CaSO4·0.5H2O whiskers CTAB surfactant

作者: Tianyu Lu Benhong Yang

作者单位: Department of Biological and Environmental Engineering, Hefei University, Hefei 230601 Department of Chemical and Materials Engineering, Hefei University, Hefei 230601, China

会议类型: 国际会议

会议名称: The 5th International Conference on Environmental Technology and Knowledge Transfer(第五届环境技术及知识转化国际会议)

会议地点: 合肥

会议语种:英文

页码: 51-55

在线出版日期: 2014-05-16（万方平台首次上网日期，不代表论文的发表时间）