高拉伸调谐氧化石墨烯装饰不收缩聚丙烯酸基复合纤维及其作为芬顿催化剂的优异性能

IF 2.1 3区 化学 Q3 POLYMER SCIENCE
Jinghong Wang, Jiayi Liu, Zeyan Wang, Nana Huang, Jiao Han, Naiku Xu, Jiahan Zhang, Xiangyuan Yan, Yaqi Li
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引用次数: 0

摘要

摘要利用混合价铁离子通过配位形成柔性离子交联网络,使PAA纤维具有高拉伸性,并将氧化石墨烯(GO)片拉伸成不连续分散的单层片。单层膜可以与PAA链形成许多氢键作为结,阻碍链的运动,控制拉伸纤维的收缩。助溶剂甲酰胺通过特殊的热效应提高PAA纤维的耐热性;因此,高拉伸纤维可以承受高温热固化。由于拉伸引起的先进结构,热定型引起的内力松弛,以及结的存在,使纤维具有高强度和不收缩的特点。高强度使纤维具有机械适用性,不收缩性使其保持较大的比表面积和较强的铁离子固定化能力。结果表明,与收缩纤维相比,非收缩纤维对亚甲基蓝(MB)脱色的催化活性提高了25%,铁离子负载比提高了174.5%;铁离子浸出率降低了76.5%,有利于提高可重复利用性。关键词:染料废水处理;fenton催化复合纤维;多组分助剂;聚丙烯酸;湿法纺丝感谢天工大学分析测试中心所做的测量工作。王景红:写作—原稿、验证、调研、数据整理、资源。刘佳怡:调查,数据管理。王泽燕:调查,数据管理。黄娜娜:调查,数据管理。焦晗:调查,数据管理。许乃库:概念、方法论、形式分析、写作原稿、项目管理、资金获取。张嘉涵:调查,数据管理。闫祥源:调查,数据管理。李雅琪:调查,数据管理。披露声明作者未报告潜在的利益冲突。数据可用性声明作者确认,支持本研究结果的数据可在文章及其补充材料中获得。基金资助:国家自然科学基金项目[批准号:51103099]、天津市自然科学基金项目[批准号:12JCQNJC01600]、高等学校博士点科研专项基金项目[批准号:20111201120002]、中国博士后科学基金项目[批准号:2014M550143, 2015T80221]。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
High stretching tuned GO decorated non-shrinkable polyacrylic acid-based composite fiber and its excellent performance as a Fenton catalyst
AbstractMixed valent iron ions were used to create a flexible ionic crosslinking network through coordination, making PAA fiber highly stretchable, and the fiber was highly stretched to tear graphene oxide (GO) sheets into discontinuously-dispersed monolayer sheets. The monolayer sheets could construct many hydrogen bonds with PAA chains to serve as knots to hinder chain movement, controlling the shrinkage of stretched fiber. Co-solvent formamide could improve the heat resistance of PAA fiber through special calorific effect; thus the highly-stretched fiber could tolerate high temperature heat setting. Due to the advanced structure induced by stretching, internal force relaxation caused by heat setting, and the existence of knots, the resulting fiber possessed the features of high strength and no shrinkage. High strength made the fiber mechanically applicable, and the unshrinkability could help it to maintain large specific surface area and strong iron ions-immobilizing capability. As a result, the catalytic activity of non-shrinkable fiber was increased by 25% compared with that of shrinkable fiber for methylene blue (MB) decolorization, and iron ion loading ratio was increased by 174.5%; however, iron ion leaching ratio was decreased by 76.5%, which was conducive to reusability improvement. Thereby, the resulting fiber could be repeatedly used to decolorize MB.Keywords: Dye wastewater treatmentfenton catalytic composite fibermulticomponent assistancepolyacrylic acidwet spinning AcknowledgmentsWe would like to thank the Analytical & Testing Center of Tiangong University for measurement work.Author contributionsJinghong Wang: Writing-original draft, Validation, Investigation, Data curation, Resources. Jiayi Liu: Investigation, Data curation. Zeyan Wang: Investigation, Data curation. Nana Huang: Investigation, Data curation. Jiao Han: Investigation, Data curation. Naiku Xu: Conceptualization, Methodology, Formal analysis, Writing-original draft, Project administration, Funding acquisition. Jiahan Zhang: Investigation, Data curation. Xiangyuan Yan: Investigation, Data curation. Yaqi Li: Investigation, Data curation.Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementThe authors confirm that the data supporting the findings of this study are available within the article and its supplementary materials.Additional informationFundingThis work was support by the National Nature Science Foundation of China [grant number 51103099], the Tianjin Municipal Natural Science Foundation [grant number 12JCQNJC01600], the Research Fund for the Doctoral Program of Higher Education of China [grant number 20111201120002], and the China Postdoctoral Science Foundation [grant numbers 2014M550143, 2015T80221].
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来源期刊
CiteScore
4.60
自引率
16.00%
发文量
61
审稿时长
3.1 months
期刊介绍: Journal of Macromolecular Science, Part A: Pure and Applied Chemistry (JMS-PAC) is a necessary resource for academic and industrial scientists and engineers whose interests center on both synthetic and naturally occurring polymers and their applications.
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