エムルション分離を維持するための強化されたピエゾ電気効果によって膜の脱乳化と防腐能力の強化
Yuanyang Yan1,2, Peizhang Zhou1, Yahong Zhou3
1School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, Guangzhou 510640, P. R. China.
Journal of the American Chemical Society
|May 1, 2024
まとめ
新しい超水性ピエゾエレクトリック膜 (SPM) は,持続的な油/水エムルション分離を提供します. この高度な膜は圧力を電圧に変換し 効率的に油を脱水し 長期にわたる性能のために 汚れを防止します
科学分野:
- 材料科学
- 化学工学
- 環境科学
背景:
- 伝統的な超湿性膜は,低解能力と表面の汚れに苦しんでおり,油/水の乳液分離における実用的な応用が制限されています.
- 既存の充電膜は一時的に汚染物質を排斥しますが,その充電は時間とともに中和され,分離性能が低下します.
研究 の 目的:
- 超水性ピエゾエレクトリック膜 (SPM) を開発し,長期にわたるエマルション分離のための持続的な脱乳化と防腐能力を持つ.
- 電圧発生のメカニズムと,脱乳化を促進し,膜の汚れを防止する役割を調査する.
主な方法:
- 超水性ピエゾ電気膜 (SPM) の製造
- パルスの圧力をパルスの電圧に変換するSPMの能力を利用します.
- 脱乳化効率,流量減少,および油/水エムルション分離中の流量回収の評価
- 活性酸素種による有機汚染物質の防腐性能と分解を調査する.
主要な成果:
- SPMは -7.6Vまでのパルス電圧を生成し,脱乳化のための油滴変形と凝結を効果的に加速しました.
- 膜は負の電荷を持つ油滴を反射することで 持続的な防腐性能を示した.
- 分離効率は98.85%に達し,流量減少率は2時間以上で14%未満でした.
- 膜の耐久性と再生性が優れたことを示す,ほぼ100%の流量回復を達成した.
結論:
- 開発されたSPMは,長期的な高効率の油/水エムルション分離のための有望な解決策を提供します.
- 膜に組み込まれたピエゾ電気効果は,増強された脱乳化と防腐化の自己動力メカニズムを提供します.
- この研究は環境修復の先端の膜技術に 新たな道を開きます
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