南通大学学报（自然科学版）2024，Vol.23Issue(2)：67-73,7.DOI:10.12194/j.ntu.20240416001
活性炭纤维/木棉复合针刺材料的制备及其海水淡化性能研究
Preparation of activated carbon fibers/kapok needle-punched composite for the application of seawater evaporation
摘要
Abstract
With the rapid increase in the human population,the demand for natural resources is rising,coupled with global climate change,especially in arid and inland areas where the demand for fresh water continues to grow.This study utilizes needle-punched nonwoven technology to prepare a fiber-based solar interface evaporator from activated carbon fiber(ACF)/kapok fiber(KF)double-layer composite felt(CKF).The hydrophobicity of the bottom KF layer ensures good self-buoyancy,while the hydrophilicity of the top ACF layer facilitates upward water transport.The influence of structural stability,hydrophilicity,and thermal management performance on the steam generation performance of the fiber-based solar interface evaporator was investigated,and its seawater purification capacity was explored.Different gram weights of kapok needled felt and activated carbon fiber felt were selected for needled composites.After process optimization,the needling density was set at 120 punches/m2,resulting in a solar absorption rate of over 95％in the 300-2 500 nm wavelength range.The study found that the composite material,reinforced with 200 g/m2 kapok needled felt and 278 g/m2 activated carbon fiber felt,exhibited the best vapor generation performance.Under 1.0 kW/m2 illumination,the evaporation efficiency reached 1.01 kg/(m2.h),the photothermal conversion efficiency was 65％,and the maximum temperature reached 64.6 ℃.The results provide new insights into the construction of high-efficiency solar water evaporators.关键词
木棉纤维/活性炭纤维/针刺/海水淡化Key words
kapok fiber/activated carbon/needling/seawater desalination分类
轻工纺织引用本文复制引用
汪航,李素英,张伟,戴家木..活性炭纤维/木棉复合针刺材料的制备及其海水淡化性能研究[J].南通大学学报（自然科学版）,2024,23(2):67-73,7.基金项目
国家重点研发计划项目(2016YFB0303101)) （2016YFB0303101）
国家自然科学基金青年科学基金项目(51803094) （51803094）
