限られたナノスケールの空間に金属-有機多面体を分離することによって,光反応効率を最大化する
Yao Jiang1, Jinhee Park2, Peng Tan1
1State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), College of Chemical Engineering , Nanjing Tech University , Nanjing 210009 , China.
Journal of the American Chemical Society
|April 16, 2019
まとめ
メソポラスシリカ (MS) に閉じ込められた光反応性金属有機多面体 (PMOPs) は,結合を防止し,効率を高めます. この突破は 刺激に反応する ゲスト吸収を 最大限に引き上げます 先進的な材料の応用です
科学分野:
- 材料科学
- ナノテクノロジー
- 化学について
背景:
- 光反応性金属有機多面体 (PMOP) は,調節可能な機能と刺激に反応する行動を提供します.
- アクティベーション後の大量PMOPの集積は,その光反応効率を損なうし,アプリケーションを制限する.
研究 の 目的:
- PMOPの集積問題を克服し,その光反応効率を最大化する.
- PMOPをメソポラスシリカ (MS) に閉じ込めて性能を向上させる利点を示す.
主な方法:
- PMOPは分離され,メソポラスシリカ (MS) のナノスケール空間内に閉じ込められました.
- 光反応性グループの可逆的なトランス/シスイソメリゼーションは,UV/可視光照射を用いて達成された.
- 小さい (プロペン) と大きな (輝く青のG) 分子の吸附行動は,異体化前と後を測定した.
主要な成果:
- 加盟国におけるPMOPは,集積を避けるように,よく分散した構造を示した.
- プロペンの48. 2%,BBGの43. 9%で,光反応性ゲスト吸着が有意に変化した.
- これらの結果は,PMOP-1を大幅に上回り,それぞれ11. 2%と7. 8%の変化を示しました.
結論:
- メソポラス・シリカにおける多面分離は,PMOPの集積を効果的に防止し,光反応効率を最大化する.
- この戦略により,小分子と大分子の両方に対して,刺激に反応する効率的なゲスト吸着が可能になります.
- 開発された複合材料は,刺激に反応する高度なアプリケーションのための有望な経路を提供します.
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