High-efficiency ramie fiber degumming and self-powered degumming wastewater treatment using triboelectric nanogenerator
High-efficiency ramie fiber degumming and self-powered degumming wastewater treatment using triboelectric nanogenerator
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DOI：
10.1016/j.nanoen.2016.03.002
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发表时间：
2016-04-01
期刊：
影响因子：
17.6
通讯作者：
Wang, Zhong Lin
中科院分区：
文献类型：
--
作者：
Li, Zhaoling;Chen, Jun;Wang, Zhong Lin
作为最坚固和最古老的天然纤维之一，苎麻纤维被广泛用于面料生产至少已有六千年的历史。而脱胶是一种关键的工艺，可以保持苎麻纤维的形状，减少皱折，并为织物外观带来丝滑的光泽。在这里，我们将一种全新的工作原理引入到利用摩擦电效应进行苎麻纤维脱胶领域。采用水驱动摩擦电纳米发电机(WD-TENG)，可以大大提高苎麻纤维的脱胶效率，改善纤维的表面形态和力学性能。此外，它还节省了传统方法中的化学品使用量，是一种完全去除苎麻纤维中非纤维素成分的绿色、实用的方法。此外，作为一项系统的研究，进一步将WD-Teng作为一种可持续的动力源，以自给的方式回收流动废水中的动能，对脱胶废水进行电化学降解。在固定电流输出为3.5 mA、电压输出为10V的情况下，自供电清洗系统在120min内可将废水中90%的污染物去除。该技术具有自给自足、环境友好、性价比高、稳定性好、脱胶和降解效率高等特点，为天然纤维的提取提供了一种创新的方法，可作为一种绿色创新技术在纺织工业中广泛采用。(C)2016爱思唯尔有限公司。保留所有权利。
As one of the strongest and oldest natural fibers, ramie fiber has been widely used for fabric production for at least six thousand years. And degumming is a critical procedure that has been developed to hold the ramie fiber's shape, reduce wrinkling, and introduce a silky luster to the fabric appearance. Herein, we introduce a fundamentally new working principle into the field of ramie fiber degumming by using the triboelectric effect. Resort to a water-driven triboelectric nanogenerator (WD-TENG), the ramie fibers degumming efficiency was greatly enhanced with improved fiber quality, including both surface morphology and mechanical properties. Furthermore, it saves the chemicals usage in the traditional method, which makes it a green and practical approach to fully remove the noncellulosic compositions from ramie fibers. In addition, as a systematical study, the WD-TENG was further employed as a sustainable power source to electrochemically degrade the degumming wastewater by recycling the kinetic energy from flowing wastewater in a self-powered manner. Under a fixed current output of 3.5 mA and voltage output of 10 V, the self-powered cleaning system was capable of cleaning up to 90% of the pollutants in the wastewater in 120 min. Given the compelling features of being self-powered, environmentally friendly, extremely cost-effective, good stability, high degumming and degradation efficiency, the presented work renders an innovative approach for natural fiber extraction, and could be widely adopted as a green and innovative technology in textile industry. (C) 2016 Elsevier Ltd. All rights reserved.