非织造布表面形貌可控氧化锌纳米粒子的构筑

doi:10.13475/j.fzxb.20180805207

纺织学报 ›› 2019, Vol. 40 ›› Issue (09): 35-41.doi: 10.13475/j.fzxb.20180805207

非织造布表面形貌可控氧化锌纳米粒子的构筑

周颖¹, 王闯¹, 朱佳颖¹, 黄林汐¹, 杨丽丽¹, 余厚咏¹, 姚菊明¹(), 金万慧²

1.浙江理工大学材料与纺织学院、丝绸学院, 浙江杭州 310018
2.湖北省纤维检验局, 湖北武汉 430000

收稿日期:2018-08-23 修回日期:2019-05-31 出版日期:2019-09-15 发布日期:2019-09-23
通讯作者: 姚菊明
作者简介:周颖(1976—),女,实验师,博士。主要研究方向为纤维材料结构与性能。
基金资助:
浙江省科技厅公益项目(2017C37014);浙江理工大学科研启动基金项目(19012099-Y)

Preparation of controllable ZnO nanoparticles on surface of nonwovens

ZHOU Ying¹, WANG Chuang¹, ZHU Jiaying¹, HUANG Linxi¹, YANG Lili¹, YU Houyong¹, YAO Juming¹(), JIN Wanhui²

1. Silk Institute, College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
2. Hubei Province Fiber Inspection Bureau, Wuhan, Hubei 430000, China

Received:2018-08-23 Revised:2019-05-31 Online:2019-09-15 Published:2019-09-23
Contact: YAO Juming

摘要/Abstract

摘要：

为制备分散性良好的氧化锌(ZnO)复合光催化材料,采用一步法混合聚丙烯纺粘非织造布(PPEN)和锌铵溶液,通过直接沉淀法负载具有不同形貌和光催化性能的氧化锌纳米粒子。借助扫描电子显微镜、X射线衍射仪、热重分析仪及紫外-可见漫反射光谱仪考察反应温度对样品微观形貌、分散性、结晶性、热稳定性和光催化性的影响。结果表明:经75 ℃处理后棒状ZnO微米粒子均匀包覆在非织造布表面;经75 ℃处理得到的PPFN/ZnO复合材料较60、90 ℃在X射线衍射特征峰处有着更尖锐的峰型,结晶度为88.0%,其最大降解温度由287.2 ℃提高到392.9 ℃,增加了105.7 ℃;对亚甲基蓝染料光催化降解8 h后降解率达到96.04%。

关键词: 氧化锌, 聚丙烯纺粘非织造布, 形貌调控, 光催化性能

Abstract:

In order to prepare ZnO composite photocatalytic material with good dispersibility, a one-step method was adopte to mix polypropylene spunbonded nonwoven fabric (PPEN) and zinc ammonium solution, influences ZnO nanoparticles with different morphologies and photocatalytic properties were loaded by direct precipitation. The influences of reaction temperature on the morphology, dispersibility, crystallization, thermal stability and photocatalytic properties of ZnO particles on the surface of the fibers were investigated by scanning electron microscopy, X-ray diffractometer (XRD), thermogravimetric analyzer and UV-visible diffuse reflectance spectroscopy. The results show that rod-shaped ZnO microparticles are uniformly coated on the surface of the nonwoven fabric after treatment at 75 ℃, and the PPFN/ZnO composites obtained at 75 ℃ have sharper peaks on the XRD chart than those obtained at 60 ℃ and 90 ℃, whose crystallinity is 88.0%. Furthermore, its maximum degradation temperature increases from 287.2 ℃ to 392.9 ℃, with an increase of 105.7 ℃, and the PPFN/ZnO composites obtained at 75 ℃ has a degradation ratio of 96.04% after photocatalytic degradation of methylene blue dye for 8 h.

Key words: ZnO, polypropylene spunbond nonwoven, morphological regulation, photocatalytic performance

中图分类号:

TS176

周颖, 王闯, 朱佳颖, 黄林汐, 杨丽丽, 余厚咏, 姚菊明, 金万慧. 非织造布表面形貌可控氧化锌纳米粒子的构筑[J]. 纺织学报, 2019, 40(09): 35-41.

ZHOU Ying, WANG Chuang, ZHU Jiaying, HUANG Linxi, YANG Lili, YU Houyong, YAO Juming, JIN Wanhui. Preparation of controllable ZnO nanoparticles on surface of nonwovens[J]. Journal of Textile Research, 2019, 40(09): 35-41.

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样品	ZnO形貌	平均长度/nm	平均直径/nm
PPFN	—	—	(18.8±0.9)×1 000
PPFN₆₀	不规则颗粒状	—	373
PPFN₇₅	棒状,均一	1 320	175
PPFN₉₀	棒状,不均一	1 650	278

样品	结晶度/ %	晶粒尺寸/nm
样品	结晶度/ %	(100)	(101)	(110)	(112)
PPFN₆₀	50.2	5.1	4.2	4.9	3.9
PPFN₇₅	88.0	5.9	5.0	5.6	4.5
PPFN₉₀	76.9	5.4	4.6	5.1	4.4

样品	T₀/℃	T_max/℃	残余质量/%
PPFN	224.8	287.2	0.1
PPFN₆₀	225.2	388.4	8.5
PPFN₇₅	226.9	392.9	15.7
PPFN₉₀	226.1	391.7	12.1

非织造布表面形貌可控氧化锌纳米粒子的构筑

Preparation of controllable ZnO nanoparticles on surface of nonwovens

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