Modified nanoporous zeolites on a biodegradable polymer film with excellent hydrophobicity, ethylene gas adsorption, and antibacterial activity through surface charge accumulation

被引：1

作者：

Lee, Jiwoo ^{[1
]}

Kong, Taewoong ^{[2
]}

Park, Jungchul ^{[1
]}

Han, Seunghye ^{[1
]}

Choi, Hyeongsub ^{[1
]}

Sun, Jingzhe ^{[3
]}

Choi, Sanghwan ^{[4
]}

Park, Jong-Jin ^{[1
]}

机构：

[1] Chonnam Natl Univ, Dept Polymer Sci & Engn, 77 Yongbong Ro, Gwangju 61186, South Korea

[2] Jeonnam Technopk, Chem Ind Ctr, Jeollanam Do 59631, South Korea

[3] Hanyang Univ, Dept Clothing & Text, Human Tech Convergence Program, Seoul 04763, South Korea

[4] Epolytech Co Ltd, Yeosu Si 59779, Jeollanam Do, South Korea

来源：

CHEMICAL ENGINEERING JOURNAL | 2024年 / 498卷

基金：

新加坡国家研究基金会;

关键词：

Nanoporous zeolite; Ethylene gas adsorption; Biodegradable; Antibacterial; Surface charge; COPPER NANOPARTICLES; ANTIMICROBIAL ACTIVITY; BEHAVIOR; DESIGN; MICRO;

D O I：

10.1016/j.cej.2024.155236

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The high specific surface area and large pore volume of nanoporous zeolites (NZs) were utilized to impart a biodegradable polymer film with superhydrophobicity, ethylene gas adsorption capability, and active antibacterial activity. NZs were synthesized by using organic silanes via a sol-gel method. They were then dispersed on a biodegradable blended PPP [poly(lactic acid) (PLA)/poly butylene succinate (PBS)/poly butylene adipate terephthalate (PBAT)] film to enhance its mechanical properties and control water repellent. The hydrophobicity of the organic silanes on the zeolite surface gradually increased according to their length. The film prepared by utilizing octadecyltriethoxysilane (ODTES) was superhydrophobic with a contact angle 142.6 degrees. The porous structure of the PPP with attached ODTES-NZs impeded the release of accumulated charges generated through friction, thereby yielding excellent output voltage when applying friction periodically. The output performance of the PPP-ODTES-NZs film was measured to be 723 V when a positive charge was injected into the film, which was about 3.1 times higher than the output performance of the PPP film without surface modification. The accumulated positive charges provided excellent antibacterial efficacy against externally introduced bacteria. Our approach of attaching ODTES-NZs to a blended polymer provides a multifunctional biodegradable film (ethylene gas adsorption, water repellent, and antibacterial activity via positive charge accumulation) with excellent food-storage capability.

引用

页数：10