Preparation of CoAl-LDH@M-PP MB Composite Melt-blown Materials and Their Adsorption and Separation Properties

Zhen-jing Tang; Yi-ning Sun; You-xiu Xie; Gao-yuan Chen; Hui Sun; Bin Yu

doi:10.11777/j.issn1000-3304.2024.24276

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Preparation of CoAl-LDH@M-PP MB Composite Melt-blown Materials and Their Adsorption and Separation Properties

Research Article | 更新时间：2025-04-01

- Preparation of CoAl-LDH@M-PP MB Composite Melt-blown Materials and Their Adsorption and Separation Properties
- Acta Polymerica Sinica Vol. 56, Issue 4, Pages: 611-622(2025)
- 作者机构：
  
  1.浙江理工大学纺织科学与工程学院（国际丝绸学院）杭州 310018
  2.浙江省现代纺织技术创新中心绍兴 312000
- 作者简介：
  
  Hui Sun, E-mail: sunhui@zstu.edu.cn
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2024.24276
  CLC：
- CSTR：32057.14.GFZXB.2024.7351
- Received：08 November 2024，
  
  Accepted：2025-02-03，
  
  Published Online：06 March 2025，
  
  Published：20 April 2025
- 稿件说明：
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唐甄婧, 孙伊宁, 谢有秀, 陈高原, 孙辉, 于斌. CoAl-LDH@M-PP MB复合熔喷材料的制备及其吸附分离性能. 高分子学报, 2025, 56(4), 611-622

Tang, Z. J.; Sun, Y. N.; Xie, Y. X.; Chen, G. Y.; Sun, H.; Yu, B. Preparation of CoAl-LDH@M-PP MB composite melt-blown materials and their adsorption and separation properties. Acta Polymerica Sinica, 2025, 56(4), 611-622
唐甄婧, 孙伊宁, 谢有秀, 陈高原, 孙辉, 于斌. CoAl-LDH@M-PP MB复合熔喷材料的制备及其吸附分离性能. 高分子学报, 2025, 56(4), 611-622 DOI： 10.11777/j.issn1000-3304.2024.24276. CSTR： 32057.14.GFZXB.2024.7351.

Tang, Z. J.; Sun, Y. N.; Xie, Y. X.; Chen, G. Y.; Sun, H.; Yu, B. Preparation of CoAl-LDH@M-PP MB composite melt-blown materials and their adsorption and separation properties. Acta Polymerica Sinica, 2025, 56(4), 611-622 DOI： 10.11777/j.issn1000-3304.2024.24276. CSTR： 32057.14.GFZXB.2024.7351.

摘要

为使聚丙烯熔喷非织造材料(PP MB)具有良好的染料吸附和油水分离性能，首先通过聚多巴胺(PDA)对PP MB表面进行亲水改性得到M-PP MB，再利用水热法在M-PP MB表面一步原位合成钴铝基层状双金属氢氧化物(CoAl-LDH)，得到复合熔喷材料CoAl-LDH@M-PP MB. 通过对复合材料的形貌、结构及其染料吸附和油水分离性能进行表征，结果表明：当Co与Al的原料比为1:9时，制备的CoAl-LDH@M-PP MB-1/9表面的CoAl-LDH为边缘呈尖刺状的圆片形，在25 ℃、刚果红(CR)水溶液浓度为50 mg/L的条件下，CoAl-LDH@M-PP MB-1/9对CR的吸附效率在30 min内可达99.00%以上；当以正己烷为油相时，CoAl-LDH@M-PP MB-1/9对正己烷/水混合物的分离效率可达到99.33%，在80次重复使用期间，CoAl-LDH@M-PP MB-1/9对正己烷/水混合物的油水分离效率均大于97.41%，表明其具有出色的油水分离及重复使用性能.

Abstract

In order to make polypropylene melt-blown nonwoven (PP MB) have good dye adsorption and oil-water separation properties

M-PP MB first was prepared by hydrophilic modification of PP MB surface with polydopamine (PDA). Then Co-Al-based Layered Double Hydroxide (CoAl-LDH) were fixed on the surface of M-PP MB by one-step

in situ

hydrothermal synthesis to obtain CoAl-LDH@M-PP MB composite melt-blown nonwovens. The effects of the synthesis process conditions on the morphology and structure of CoAl-LDH@M-PP MB were explored

and the organic dye adsorption performance and oil-water separation performance were investigated. The results showed that when the raw material concentration ratio of Co to Al is 1:9

CoAl-LDH on the surface of the prepared CoAl-LDH@M-PP MB-1/9 presents disc shape with a sharp spine edge. Under the initial concentration of Congo red (CR) aqueous solution of 50 mg/L at 25

the adsorption efficiency of CoAL-LDH@M-PPMB-1/9 for CR can reach over 99.00% within 30 min. When

-hexane is used as the oil phase

the separation efficiency of CoAl-LDH@M-PP MB-1/9 for

-hexane/water mixture can reach 99.33%

during 80 times o

f reuse

the oil-water separation efficiency of CoAl-LDH@M-PPMB-1/9 for

-hexane/water mixture is still greater than 97.41%

which shows that it has excellent oil-water separation and reuse performance.

关键词

Keywords

references

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