CuS复合海绵的制备及其在含菌乳液净化处理中的应用

doi:10.16085/j.issn.1000-6613.2022-2332

化工进展 ›› 2023, Vol. 42 ›› Issue (11): 6031-6041.DOI: 10.16085/j.issn.1000-6613.2022-2332

• 资源与环境化工 • 上一篇

CuS复合海绵的制备及其在含菌乳液净化处理中的应用

肖倩¹(), 廖腾飞¹, 丁玲玲¹, 朱张昊², 彭冬梅¹, 胡婧¹, 杨浩¹()

^1.武汉工程大学绿色化工过程教育部重点实验室，环境生态与生物工程学院，湖北武汉 430205
^2.武汉工程大学光电信息与能源工程学院，湖北武汉 430205

收稿日期:2022-12-18 修回日期:2023-02-06 出版日期:2023-11-20 发布日期:2023-12-15
通讯作者: 杨浩
作者简介:肖倩（2001—），女，本科生，研究方向为特殊浸润性油水分离材料的开发。E-mail：1912110220@stu.wit.edu.cn。
基金资助:
国家级、省级大学生创新创业训练项目(202110490004);武汉工程大学大学生校长基金(XZJJ2021103)

Preparation of CuS composite sponge and its application in purifying emulsion containing bacteria

XIAO Qian¹(), LIAO Tengfei¹, DING Lingling¹, ZHU Zhanghao², PENG Dongmei¹, HU Jing¹, YANG Hao¹()

^1.Key Laboratory for Green Chemical Process of Ministry of Education, School of Enviromental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan 430205, Hubei, China
^2.School of Optical Information and Energy Engineering, Wuhan Institute of Technology, Wuhan 430205, Hubei, China

Received:2022-12-18 Revised:2023-02-06 Online:2023-11-20 Published:2023-12-15
Contact: YANG Hao

摘要/Abstract

摘要：

近年来超润湿材料广泛应用于油水乳液分离，但对于含有细菌的复杂油水混合物同步分离的研究报道较少。为了解决这一问题，本文提出了一种一步O/W分离、利用光热转换高效除菌的综合策略。以三聚氰胺海绵（MS）为底材，采用简单的两步浸泡法将壳聚糖（CS）、CuS和聚乙烯吡咯烷酮（PVP）负载于MS上，制备出了具有超亲水/水下超疏油、光热抗菌性能的MS@CS-CuS@PVP复合海绵，对材料改性前后化学结构与微观形貌进行了表征，研究了复合海绵对含菌乳液净化处理能力。结果表明，CuS纳米粒子的加入使复合海绵的水下油接触角达到了155.4°，具有水下超疏油性能。将复合海绵应用于水包油乳液的分离，分离效率均在98.56%以上，且复合海绵具有较好的化学、机械稳定性。在光照条件下复合海绵表现出良好的光热转换性能及光热稳定性，能够促进含菌乳液的净化处理，使分离通量提高22%，除菌率提高18.84%。这将为分离复杂油水混合物提供更多的启示，为工业应用中的潜在问题提供了新的解决思路。

关键词: 硫化铜, 复合材料, 乳液, 分离, 光热转换, 抗菌

Abstract:

Recently, superwetting materials are widely used in oil-water emulsion separation, but there are few reports on the simultaneous separation of complex oil-water mixtures containing bacteria. To solve this problem, a comprehensive strategy of one-step O/W separation and efficient sterilization by photothermal conversion was proposed. Using melamine sponge (MS) as the substrate, chitosan (CS), CuS and polyvinylpyrrolidone (PVP) were loaded on MS by a simple two-step soaking method, and the prepared MS@CS-CuS@PVP composite sponge had superhydrophilic/underwater superoleophobic and photothermal antibacterial properties. The chemical structure and micromorphology of the material before and after modification were characterized, and the purification ability of the composite sponge to emulsion containing bacteria was studied. The results showed that the underwater oil contact angle of the composite sponge reaches 155.4^o with the addition of CuS nanoparticles, and it had the underwater superoleophobic property. Composite sponge was applied to the separation of oil-in-water emulsion, the separation efficiency was above 98.56%, and it had good chemical and mechanical stability. The high photothermal conversion performance and photothermal stability can promote the purification of the emulsion containing bacteria under light irradiation, which increased the separation flux by 22% and the sterilization rate by 18.84%. This would provide more inspirations for the separation of complex oil-water mixtures and provide new solutions to potential problems in industrial applications.

Key words: copper sulfide, composites, emulsion, separation, photothermal conversion, antibacterial

中图分类号:

X505

肖倩, 廖腾飞, 丁玲玲, 朱张昊, 彭冬梅, 胡婧, 杨浩. CuS复合海绵的制备及其在含菌乳液净化处理中的应用[J]. 化工进展, 2023, 42(11): 6031-6041.

XIAO Qian, LIAO Tengfei, DING Lingling, ZHU Zhanghao, PENG Dongmei, HU Jing, YANG Hao. Preparation of CuS composite sponge and its application in purifying emulsion containing bacteria[J]. Chemical Industry and Engineering Progress, 2023, 42(11): 6031-6041.

图/表 10

图1 MS@CS-CuS@PVP制备及其含菌乳液分离示意图

图2 MS和改性海绵的FE-SEM图

图3 MS和改性海绵的XRD图谱和ATR-FTIR光谱

图4 MS和改性海绵的水下油接触角

图5 MS和改性海绵分离甲苯乳液及CC0.5PM分离不同水包油乳液实验

图6 CC0.5PM分离前乳液的粒径分布图和分离前后乳液及滤液的数码照片

图7 MS和改性海绵分离含SDS的甲苯乳液实验

图8 CC0.5PM稳定性能的测试实验

图9 MS和改性海绵的光热转换实验和CC1.0PM的光热稳定性实验

图10 含菌乳液分离实验

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CuS复合海绵的制备及其在含菌乳液净化处理中的应用

Preparation of CuS composite sponge and its application in purifying emulsion containing bacteria

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