TiO2/MIL-88B(Fe)/聚丙烯复合熔喷非织造材料的制备及其性能

doi:10.13475/j.fzxb.20190504808

摘要/Abstract

摘要：

为使聚丙烯(PP)熔喷非织造材料功能化,扩大其在水处理方面的应用,以2,4-对苯二甲酸、六水合三氯化铁、纳米氧化钛为原料,PP熔喷非织造材料为基材,首先通过浸渍工艺预处理基底材料,再通过溶剂热法在PP熔喷非织造材料基材上负载金属有机框架材料TiO₂/MIL-88B(Fe),制备了TiO₂/MIL-88B(Fe)/PP复合熔喷非织造材料。借助红外光谱、X射线衍射及孔径分析对TiO₂/MIL-88B(Fe)/PP复合熔喷非织造材料的结构与性能进行了表征。结果表明TiO₂/MIL-88B(Fe)成功负载在PP熔喷非织造材料表面。在可见光照射条件下,TiO₂/MIL-88B(Fe)/PP复合熔喷非织造材料对甲基蓝、酸性橙7及酸性红73这3种染料的降解率均达到80%以上,其中对甲基蓝的降解率可达86%,对较难降解的罗丹明B的降解率也达到了59%。在重复使用5次后,复合熔喷非织造材料对甲基蓝降解率均在70%以上,性能较稳定。

关键词: 聚丙烯, 熔喷非织造材料, 金属骨架化合物, 类芬顿体系, 有机染料降解

Abstract:

In order to functionalize polypropylene (PP) melt-blown nonwovens and expand their application on water treatment, TiO₂/MIL-88B(Fe)/PP composite melt-blown nonwovens were prepared by use of 2,4-terephthalic acid, ferric chloride hexahydrate and nano-titanium oxide as raw materials and PP melt-blown nonwovens as the substrate. PP melt-blown nonwovens was first pretreated by impregnation process. Then, the metal-organic framework TiO₂/MIL-88B(Fe) was fixed on the surface of PP melt-blown nonwovens via solvothermal method. The structure and properties of the TiO₂/MIL-88B(Fe)/PP composite melt-blown nonwovens were characterized by Fourier transform infrared spectrometer, X-ray diffraction and aperture analyzer. It is indicated that TiO₂/MIL-88B (Fe) was successfully loaded on the surface of PP melt-blown nonwovens substrate. Under visible light irradiation, the degradation rates of the TiO₂/MIL-88B(Fe)/PP composite melt-blown nonwovens for methyl blue, acid orange 7, acid red 73 are more than 80%, and especially, its degradation rate for methyl blue could reach 86%, the degradation rate of Rhodamine B also reaches 59%. After 5 cycles of tests, the removal rate of methyl blue by composites is above 70%, the catalytic performance is stable.

Key words: polypropylene, melt-blown nonwoven material, metal skeleton compound, Fenton-like system, degradation of organic dye

中图分类号:

TB430

刘禹豪, 孙辉, 王捷琪, 于斌. TiO₂/MIL-88B(Fe)/聚丙烯复合熔喷非织造材料的制备及其性能[J]. 纺织学报, 2020, 41(02): 95-102.

LIU Yuhao, SUN Hui, WANG Jieqi, YU Bin. Preparation of TiO₂/MIL-88B(Fe)/polypropylene composite melt-blown nonwovens and study on dye degradation properties[J]. Journal of Textile Research, 2020, 41(02): 95-102.

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元素	质量百分数	原子百分数
C	76.90	82.79
O	20.51	16.56
Na	0.11	0.06
S	0.10	0.04
Ti	1.23	0.34
Fe	1.15	0.27

TiO₂/MIL-88B(Fe)/聚丙烯复合熔喷非织造材料的制备及其性能

Preparation of TiO₂/MIL-88B(Fe)/polypropylene composite melt-blown nonwovens and study on dye degradation properties

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