Relationship between Anion Adsorption and Physicochemical Properties of Aluminum Oxide
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概要
- 論文の詳細を見る
This study investigated the adsorption capacity and adsorption mechanism of phosphate by calcined aluminum oxide (GB) at temperatures of 200 to 1150℃. The results showed that GB and GB calcined at a temperature of 200℃exhibited almost no adsorption capacity, and GB calcined at temperatures of 300 or 400℃exhibited the highest adsorption capacity. After that, adsorption capacity tended to decrease with increasing calcination temperature. The specific surface area and the concentration of surface hydroxyl groups exhibited the highest values in GB calcined at temperatures of 300 and 400℃. From the above facts, it is conjectured that the specific surface area and concentration of surface hydroxyl groups contribute to the adsorption of phosphate in calcined GB. The results of X-ray diffraction showed that the structure of GB changed drastically at temperatures of 200 to 300℃ and 900 to 1000℃. Also, it was evident that phosphate was adsorbed selectively even in complex solution systems containing chloride, nitrate, sulfate, hydrogen carbonate and phosphate ions, and that calcined GB is suitable for adsorption of phosphate. For the adsorption of phosphate, it was found that the optimum pH is around 4. When calcined GB is suspended in purified water, it is thought that hydroxyl groups form through dissociative adsorption with water molecules, and that these hydroxyl groups conduct ion exchange with phosphate.
- 社団法人日本薬学会の論文
- 2008-06-01
著者
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Kawasaki N
近畿大学薬学部
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KABAYAMA Mineaki
Tomita Pharmaceutical Co., Ltd.
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KAKEHI Kazuaki
Department of Biopharmaco Informatics, School of Pharmacy, Kinki University
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Kawasaki Naohito
School of Pharmacy, Kinki University
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Ogata Fumihiko
School of Pharmacy, Kinki University
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Takahashi Kouzou
School of Pharmacy, Kinki University
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Kakehi Kazuaki
School of Pharmacy, Kinki University
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Tanada Seiki
School of Pharmacy, Kinki University
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Tanada S
School Of Pharmacy Kinki University
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Kakehi Kazuaki
Department Of Biopharmaco Informatics School Of Pharmacy Kinki University
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Kakehi Kazuaki
School Of Pharmacy Kinki University
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Ogata Fumihiko
Dep. Of Public Health School Of Pharmacy Kinki Univ.
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Kabayama Mineaki
Tomita Pharmaceutical Co. Ltd.
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Kawasaki Naohito
Faculty Of Pharmacy Kinki University
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Takahashi Kouzou
School Of Pharmacy Kinki University
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Tanada Seiki
School Of Pharmacy Kinki University
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Ogata Fumihiko
School Of Pharmacy Kinki University
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TANADA Seiki
School of Pharmaceutical Sciences, Kinki University
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KAKEHI Kazuaki
School of Pharmaceutical Sciences, Kinki University
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KAWASAKI Naohito
School of Pharmaceutical Sciences, Kinki University
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OGATA Fumihiko
School of Pharmaceutical Sciences, Kinki University
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