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巰基功能化分離膜的制備與應用
作者:劉蘭芳 羅建泉 萬印華 陳向榮* 武元鵬*[收稿日期:2019-01-11 修改稿收到日期:2019-02-15 基金項目:國家重點研究發展計劃(2017YFC1600906)  河北省衡水科技成果轉化發展基金 中國工程院咨詢項目(2017-XZ-08-01-03) 第一作者簡介:劉蘭芳(1991-)  河南周口人 碩士生 從事功能膜材料的制備與應用 E-mail: [email protected] 通訊作者 陳向榮 E-mail:[email protected]  武元鵬 E-mail:[email protected]] 
單位:1. 油氣藏地質及開發工程國家重點實驗室 材料科學與工程學院 西南石油大學 四川成都 610500 2. 生化工程國家重點實驗室 中國科學院過程工程研究所 北京 100190 
關鍵詞:聚多巴胺 聚乙烯亞胺 L-半胱氨酸 功能化分離膜 展青霉素 
分類號:TQ316.6
出版年,卷(期):頁碼:2019,39(3):14-21
摘要:

?展青霉素是一種有毒的真菌次級代謝產物,給人及動物的健康造成了潛在的威脅。本文尼龍膜為基膜,利用聚多巴胺涂層的超強粘附特性將帶有氨基的聚乙烯亞胺接枝到膜表面,通過進一步的酰胺化反應制備得到巰基功能化分離膜并利用巰基與展青霉素的特異性結合達到去除展青霉素的目的。系統研究了制膜參數,如基膜孔徑、不同的PEI分子表面巰基化反應條件等對膜形態結構和性能的影響。研究結果表明通過多巴胺的仿生改性,能成功實現尼龍巰基功能化。與基膜相比,巰基化分離膜的最大孔徑減小,水通量明顯下降,親水性顯著提高。在動態過濾實驗中,隨著溫度的增加,膜的吸附率明顯提高,60°C時對展青霉素的吸附92.9% 

Patulin is a toxic fungal secondary metabolite, and it can cause a serious threat to human and animals’ healthy. In this paper, nylon membrane was used as the matrix material, polydopamine (PDA) coating was firstly deposited onto the surface of membrane. poly (ethylene imine) (PEI) was grafted onto the surface of membrane through the strong adhesion of PDA layer. Thiol-functionalized membrane was fabricated by thiolation modification for efficient removal of patulin. The effects of membrane preparation parameters, such as membrane pore size, PEI molecule and thiolation reaction conditions on membrane morphology and properties were studied. The results showed that thiol-functionalized membrane could be fabricated successfully by dopamine biomimetic modification. Compared with the pristine membrane, the maximum pore size of thiol-functionalized membrane was slightly decreased, water flux and contact angle were increased obviously. In the dynamic filtration tests, The adsorption efficiency of patulin was raised significantly with the temperature increasing. The adsorption efficiency of patulin was 92.9% at 60 °C.

基金項目:
國家重點研究發展計劃(2017YFC1600906); 河北省衡水科技成果轉化發展基金;中國工程院咨詢項目(2017-XZ-08-01-03)
作者簡介:
劉蘭芳(1991-),女,河南周口人,碩士生,從事功能膜材料的制備與應用,E-mail: [email protected] 通訊作者,陳向榮,E-mail:[email protected] 武元鵬,E-mail:[email protected]
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