JP2006346527A - チタニア/粘土複合多孔体の製造方法 - Google Patents
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
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- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- WSNJABVSHLCCOX-UHFFFAOYSA-J trilithium;trimagnesium;trisodium;dioxido(oxo)silane;tetrafluoride Chemical compound [Li+].[Li+].[Li+].[F-].[F-].[F-].[F-].[Na+].[Na+].[Na+].[Mg+2].[Mg+2].[Mg+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O WSNJABVSHLCCOX-UHFFFAOYSA-J 0.000 description 1
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Abstract
【解決手段】結晶質のチタニアを含有する酸性のチタニアゾルまたはチタニア分散液を膨潤性粘土に作用させ、結晶質チタニアと粘土が複合されたチタニア/粘土複合多孔体を得る。
【選択図】 なし
Description
<実施形態>
本発明により結晶質チタニアと粘土が複合されたチタニア/粘土複合多孔体を、以下のような手順で調製することができる。
(実施例1)
結晶質チタニアと粘土が複合されたチタニア/粘土複合多孔体の調製を以下のように行った。すなわち、アナターゼを含有する酸性チタニアゾル(テイカ株式会社製 TKS−202)を水で20倍に希釈した希釈液89mlに、ナトリウム−モンモリロナイト(クニミネ工業株式会社製 クニピア−F)2gを含む水懸濁液200mlを加え、室温で3時間攪拌した。この混合液中の配合比は粘土分に対するチタニア分の重量配合比で1:1にあたる。その後、遠心分離により固液分離を行い、得られた固形生成物の水洗をくり返し、その後、室温で自然乾燥し、さらに120℃の加熱を加えた。乾燥物の粉砕を行い、結晶質チタニアと粘土が複合されたチタニア/粘土複合多孔体粉末を得た。
実施例1におけるナトリウム−モンモリロナイトをナトリウム−合成フッ素マイカ(トピー工業株式会社製 Na−TS)に替え、他の条件は実施例1と同様にして、結晶質チタニアと粘土が複合されたチタニア/粘土複合多孔体粉末を調整した。この配合比は実施例1と同様に粘土分に対するチタニア分の重量配合比で1:1にあたる。
実施例1におけるチタニアゾルをブルッカイトを含有する酸性チタニアゾル(昭和電工株式会社製 NTB−01)に替え、10倍希釈したチタニアゾル133mlをナトリウム−モンモリロナイト(クニミネ工業株式会社製 クニピア−F)2gを含む水懸濁液200mlと混合し、他の条件は実施例1と同様にして、結晶質チタニアと粘土が複合されたチタニア/粘土複合多孔体粉末を調整した。この配合比は実施例1と同様に粘土分に対するチタニア分の重量配合比で1:1にあたる。
実施例1におけるチタニアゾルを中性のペルオキソチタン水溶液(株式会社鯤コーポレーション製 PTA85)に替え、ペルオキソチタン水溶液118mlを、ナトリウム−モンモリロナイト(クニミネ工業株式会社製 クニピア−F)1gを含む水懸濁液100mlと混合し、他の条件は実施例1と同様にして、チタニア/粘土複合体粉末を調整した。この配合比は粘土分に対するチタン化合物固形分の重量配合比で1:1にあたる。
実施例1におけるチタニアゾルをアナターゼを含有する中性のペルオキソチタン改質ゾル(株式会社鯤コーポレーション製 TO85)に替え、ペルオキソチタン改質ゾル118mlを、ナトリウム−モンモリロナイト(クニミネ工業株式会社製 クニピア−F)1gを含む水懸濁液100mlと混合し、他の条件は実施例1と同様にして、チタニア/粘土複合体粉末を調整した。この配合比は粘土分に対するチタン化合物固形分の重量配合比で1:1にあたる。
実施例1におけるチタニアゾルに替えて、光触媒チタニア微粉末(日本アエロジル株式会社製 P−25)2gを水200mlに分散したチタニア懸濁液を、ナトリウム−モンモリロナイト(クニミネ工業株式会社製 クニピア−F)2gを含む水懸濁液200mlと混合し、他の条件は実施例1と同様にして、チタニア/粘土混合粉末を調整した。この配合比は実施例1と同様に粘土分に対するチタニア分の重量配合比で1:1にあたる。
以上のようにして得られた実施例1〜3及び比較例1〜3の粉末について、蛍光X線分析法によるチタニア含有量測定、X線回折法による含有チタニアの結晶相の判定、窒素吸着法によるBET法比表面積測定を行った。
実施例1〜3及び比較例1〜3の粉末の蛍光X線分析法によるチタニア含有量測定、X線回折法による含有チタニアの結晶相の判定、窒素吸着法によるBET法比表面積測定の結果を表1に示す。
Claims (5)
- チタニア分散液またはチタニアゾルを膨潤性粘土に作用させてチタニア/粘土複合多孔体とするチタニア/粘土複合多孔体の製造方法であって、該チタニア分散液または該チタニアゾルが酸性でありかつ該チタニア分散液または該チタニアゾル中に含有されるチタニアが結晶質であることを特徴とするチタニア/粘土複合多孔体の製造方法。
- 前記チタニア分散液または前記チタニアゾルのpHが0から5であることを特徴とする請求項1に記載のチタニア/粘土複合多孔体の製造方法。
- 前記チタニア分散液または前記チタニアゾル中に含有されるチタニアの結晶相がアナターゼ、ブルッカイト、ルチルのいずれかであるかまたはこれらの混合であることを特徴とする請求項1又は2に記載のチタニア/粘土複合多孔体の製造方法。
- 製造される前記チタニア/粘土複合多孔体の窒素ガス吸着法によるBET法比表面積が70m2/g以上であることを特徴とする請求項1から3のいずれかに記載のチタニア/粘土複合多孔体の製造方法。
- 前記膨潤性粘土はスメクタイト、バーミキュライト、合成マイカおよびフッ素置換せしめたこれらの類似体の1種または2種以上の混合物であることを特徴とする請求項1から4のいずれかに記載のチタニア/粘土複合多孔体の製造方法。
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CN102218335A (zh) * | 2011-06-13 | 2011-10-19 | 华东理工大学 | 具有太阳光催化活性及疏水的负载型光催化剂制备方法 |
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CN102218335A (zh) * | 2011-06-13 | 2011-10-19 | 华东理工大学 | 具有太阳光催化活性及疏水的负载型光催化剂制备方法 |
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