Synthesis of self-assembled needle-shaped calcium carbonate superstructures

• 来源期刊: 科学通报(英文版)
• 学科: 工学
• 关键词: 碳酸钙晶体 合成水晶 自组装 场发射扫描电子显微镜 傅立叶变换红外光谱仪 粉末X射线衍射 上盖 针状
• 年，卷（期）: 2010,（20）
• 所属期刊栏目: ARTICLES
• 页码范围: 2131-2135
• 页数: 5页
• 分类号: TQ172.633 Q959.210.6
• 语种: 英文

摘要

Novel self-assembled calcium carbonate(CaCO3)crystals exhibiting the morphology of well-defined needles were synthesized by a simple precipitation reaction in the presence of octadecyl dihydrogen phosphate(ODP)as a crystal additive.The CaCO3 obtained by this method is hydrophobic,making it likely to be used widely in industry.The resulting products were characterized by powder X-ray diffraction,field emission scanning electron microscopy,Fourier transform infrared spectroscopy and contact angle experiments.The results indicated that ODP plays an important role in determining the structure,morphology and hydrophobicity of CaCO3 crystals.