Synthesis of self-assembled needle-shaped calcium carbonate superstructures |
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Authors: | LiNa Zhao JingDong Feng XiuYan Wang ZiChen Wang |
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Institution: | 1 College of Chemistry, Jilin Normal University, Siping 136000, China;
2 Institute of Chemistry, Jilin University, Changchun 130023, China |
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Abstract: | 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. |
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Keywords: | calcium carbonate self-assembled needle-shaped hydrophobic |
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