基于聚多巴胺的超疏水棉织物的一锅法制备及其油水分离性能

doi:10.11901/1005.3093.2021.103

材料研究学报

2022, Vol. 36

Issue (2): 114-122 DOI: 10.11901/1005.3093.2021.103

研究论文

本期目录 | 过刊浏览

基于聚多巴胺的超疏水棉织物的一锅法制备及其油水分离性能

张红亮, 赵国庆, 欧军飞(

), Amirfazli Alidad

江苏理工学院材料工程学院常州 213000

Superhydrophobic Cotton Fabric Based on Polydopamine via Simple One-Pot Immersion for Oil Water Separation

ZHANG Hongliang, ZHAO Guoqing, OU Junfei(

), Amirfazli Alidad

School of Materials Engineering, Jiangsu University of Technology, Changzhou 213000, China

引用本文:

张红亮, 赵国庆, 欧军飞, Amirfazli Alidad. 基于聚多巴胺的超疏水棉织物的一锅法制备及其油水分离性能[J]. 材料研究学报, 2022, 36(2): 114-122.
Hongliang ZHANG, Guoqing ZHAO, Junfei OU, Alidad Amirfazli. Superhydrophobic Cotton Fabric Based on Polydopamine via Simple One-Pot Immersion for Oil Water Separation[J]. Chinese Journal of Materials Research, 2022, 36(2): 114-122.

全文: PDF(11536 KB) HTML

摘要:

将棉织物浸入多巴胺、硝酸银、十六烷基三甲氧基硅烷的乙醇溶液中，取出烘干制备出超疏水棉织物。用扫描电子显微镜和X射线光电子能谱表征其表面形貌和元素，用接触角测量仪测量其接触角并进行摩擦或液体浸泡(如酸、碱、沸水)实验检测其耐用性。结果表明，聚多巴胺的强附着性使原位生成的银纳米粒子能经受摩擦或不同液体的浸泡，从而使超疏水织物具有良好的耐用性。超疏水棉织物还具有良好的油水分离性能，其油水分离效率高达97%，油流量最高可达15.93 m³·m^-2·h^-1。

关键词 ：材料表面与界面, 荷叶效应, 贻贝效应, 耐用性, 废水处理

Abstract：

Superhydrophobic fabric was fabricated by dipping the cotton fabric into ethanol solution of dopamine, silver nitrate and hexdecyltrimethoxysilane followed by bakingdry, and of which the surface morphology and chemical composition were characterized by scanning electron microscope and x-ray photoelectron spectroscope, respectively. Surface wettability was measured by contact angle meter. Durability was assessed by abrasion or immersion in different aqueous solutions of acid, alkali, or boiling water. Results show that the in-situ-generated Ag particles were retained after abrasion or immersion test due to the high adhesion of polydopamine; thus, the so-obtained superhydrophobic fabric possessed good durability. Moreover, the superhydrophobic fabric showed good oil-water separation performance with oil-water separation efficiency up to 97% and oil flow up to 15.93 m³·m^-2·h^-1.

Key words： surface and interface in the materials lotus effect mussel effect durability wastewater treatment

收稿日期: 2021-01-19

ZTFLH:

O631

基金资助:国家自然科学基金(52073127);常州市科技计划(CM20-193004)

作者简介: 张红亮，男，1996年，硕士生

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https://www.cjmr.org/CN/10.11901/1005.3093.2021.103 或 https://www.cjmr.org/CN/Y2022/V36/I2/114

表1 用于制备TF-nC-mC样品的多巴胺和硝酸银的浓度

图1 TF-nC-mC的制备原理图、原始棉织物的微观形貌图、TF-nC-mC样品的微观形貌随着浓度系数n和沉积循环次数m的变化

表2 TF-nC-mC样品表面润湿性与浓度倍数n和沉积循环次数m的关系

图2 TF-3C-5C样品和原始棉织物的XPS全谱、Ag3d高分辨谱、原始棉织物的C1s高分辨谱以及TF-3C-5C样品的C1s高分辨谱

图3 超声波处理、清洗、沸水、碱、酸和磨损试验后表面形态的变化

表3 耐用性测试后样品的表面形貌、表面润湿性以及表面化学的变化

图4 超疏水织物TF-3C-C的表面湿润性与超声清洗时间、加速洗涤次数、沸水处理时间碱液浸泡时间、酸液浸泡时间以及摩擦次数的关系

表4 TF-3C-5C超疏水织物的耐用性与文献值的对比

图5 超疏水织物对正己烷(油红染色)和三氯甲烷(油红染色)的选择性吸附

图6 使用TF-3C-5C超疏水织物分离膜进行油水分离

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