活性炭纤维布与电纺纤维的杂化及其颗粒物过滤性能

YANG Yun-long; LI Ming-zhe; HOU Shi-yu; LU Rui-tao; KANG Fei-yu; HUANG Zheng-hong

doi:10.1016/S1872-5805(22)60598-5

活性炭纤维布与电纺纤维的杂化及其颗粒物过滤性能

doi: 10.1016/S1872-5805(22)60598-5

阳云龙^{1, 2},
李明哲¹,
侯诗宇^{1, 2},
吕瑞涛¹,
康飞宇¹,
黄正宏^1, ,

1.
清华大学材料学院先进材料教育部重点实验室，北京 100084
2.
中国矿业大学（北京）化学与环境工程学院，北京 100083

详细信息

通讯作者:
黄正宏. E-mail：zhhuang@mail.tsinghua.edu.cn

中图分类号: TB33
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出版历程
- 收稿日期: 2021-06-13
- 修回日期: 2021-08-23
- 网络出版日期: 2022-01-05
- 刊出日期: 2022-07-20

Hybridization of activated carbon fiber cloth with electrospun nanofibers for particle filtration

1.
Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
2.
School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China

More Information

Corresponding author: HUANG Zheng-hong. E-mail: zhhuang@mail.tsinghua.edu.cn

摘要

摘要: 活性炭纤维具有较高的吸附容量而被用于挥发性有机物的治理，而静电纺丝纤维对颗粒物具有较好的拦截能力可望用于过滤材料。本文采用高压静电纺丝的方法，将聚乙烯醇和聚丙烯腈纳米纤维纺丝至酚醛树脂基活性炭纤维布上获得了2种杂化纤维材料。通过颗粒物过滤测试系统评价了杂化纤维材料的过滤性能，结果表明样品的过滤效率与电纺丝纤维量呈正相关。由于电纺丝纤维引入的压电效应，使得样品的过滤效率随着气流流速的增加而提高。杂化纤维材料还具有较好的挥发性有机物吸附性能。这表明活性炭纤维布与电纺纤维的杂化材料在空气污染治理方面将具有较好的应用前景。
- 电纺纤维 /
- 活性炭布 /
- 空气颗粒物过滤 /
- 苯 /
- 吸附
Abstract: Activated carbon fibers (ACFs) have high adsorption capacities and can be used in the treatment of benzene, while electrospun nanofibers are expected to be used as a filtration material. In this work, two hybrids of electrospun nanofibers and ACF cloth were prepared by electrospinning polyvinyl alcohol and polyacrylonitrile nanofibers into a phenolic resin-based ACF cloth. The filtration performance of the two hybrids was evaluated. Results indicate that there is a positive correlation between the filtration efficiency and the amount of electrospun nanofibers in the hybrid. The filtration efficiency increases with increasing air velocity, which is attributed to a piezoelectric effect introduced by the electrospun nanofibers. The hybrids have a good adsorption capacity for benzene, which suggests that the materials are promising for treating air pollution.
- Electrospun nanofibers /
- Activated carbon cloths /
- Air particles filtration /
- Benzene /
- Adsorption

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FIG. 1655. FIG. 1655.

FIG. 1655.. FIG. 1655.

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Figure 1. Filtration test system

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Figure 2. Dynamic adsorption system

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Figure 3. SEM images of electrospun nanofiber/phenolic resin based carbon fiber composite cloths and electrospun nanofiber: (a) PRPVA, (b) PRPAN, (c) PVA nanofibers and (d) PAN nanofibers

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Figure 4. Filtration efficiency of samples

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Figure 5. Filtration efficiency of (a) PRPVA-2, (b) PRPAN-3 and (c) FN90-H13 under varied air velocity

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Figure 6. Breakthrough curves of hybrid materials

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Table 1. Features of electrospun nanofibers/phenolic resin based carbon fibers hybrid cloths

samples	Time of electrospinning(min)	Mass of ACFC(g)	Mass of nanofibers(g)	Areal density(mg·(cm²)⁻¹)	Mass ratio of nanofibers/hybrid cloths
PRPVA-1	1.5	0.552	0.002	7.74	0.36%
PRPVA-2	10	0.552	0.007	7.78	1.25%
PRPAN-1	3.5	0.552	0.002	9.69	0.36%
PRPAN-2	15	0.552	0.007	10.48	1.25%
PRPAN-3	28	0.552	0.014	11.18	2.47%

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Table 2. Calculate adsorption capacity of samples

Sample	Breakthrough time (min)	Adsorption capacity (mg·g⁻¹)
PR20	370	202
PRPAN-1	383	201
PRPAN-2	272	131
PRPAN-3	232	101
PRPVA-1	299	188
PRPVA-2	269	142

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