Hydroxyapatite organofunctionalized with silylating agents to heavy cation removal

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• 作者：Oberto G. da Silva ; Edson C. da Silva Filho ; Maria G. da Fonseca ; Luiza N.H. Arakaki and Claudio Airoldi
• 关键词：Organofunctionalization ; Alkoxysilanes ; Adsorption ; Hydroxyapatite
• 刊名：Journal of Colloid and Interface Science
• 出版年：2006
• 期刊代码：125_00219797
• 类别：ch
• 出版时间：15 October 2006
• 卷：302
• 期：2
• 页码：485-491
• 文件大小：280 K

摘要

Hydroxyapatite surface silylation with organosilane derivatives (H₃CO)₃SiR, R being the corresponding organic moieties CH₂CH₂CH₂NH₂, CH₂CH₂CH₂NHCH₂CH₂NH₂, and CH₂CH₂CH₂NHCH₂CH₂NHCH₂CH₂NH₂, was carried out to yield organofunctionalized nanomaterials, named HApR1, HApR2, and HApR3, respectively. The products were characterized by elemental analysis, infrared spectroscopy, X-ray diffraction, thermogravimetry, and ³¹P and ¹³C NMR in the solid state. The amounts of groups grafted onto surfaces were l6">le="text-decoration:none; color:black" href="/science?_ob=MathURL&_method=retrieve&_udi=B6WHR-4KMYFY2-2&_mathId=mml6&_user=10&_cdi=6857&_rdoc=13&_handle=V-WA-A-W-VC-MsSAYWA-UUW-U-AAZCBUCUDE-AAZWYYCYDE-VBBBACVC-VC-U&_acct=C000050221&_version=1&_userid=10&md5=b7542cc86777ccc85630f0d68d1868d7" title="Click to view the MathML source">0.75±0.05, l7">le="text-decoration:none; color:black" href="/science?_ob=MathURL&_method=retrieve&_udi=B6WHR-4KMYFY2-2&_mathId=mml7&_user=10&_cdi=6857&_rdoc=13&_handle=V-WA-A-W-VC-MsSAYWA-UUW-U-AAZCBUCUDE-AAZWYYCYDE-VBBBACVC-VC-U&_acct=C000050221&_version=1&_userid=10&md5=5dd880beb0de8967fc64ccd89bd8deba" title="Click to view the MathML source">2.35±0.14, and l8"> for HApRx (l9">le="text-decoration:none; color:black" href="/science?_ob=MathURL&_method=retrieve&_udi=B6WHR-4KMYFY2-2&_mathId=mml9&_user=10&_cdi=6857&_rdoc=13&_handle=V-WA-A-W-VC-MsSAYWA-UUW-U-AAZCBUCUDE-AAZWYYCYDE-VBBBACVC-VC-U&_acct=C000050221&_version=1&_userid=10&md5=da9a510c9c5e8b36e8af134be2656b26" title="Click to view the MathML source">x