摘要
以硫酸亚铁(FeSO_4·7H_2O)和草酸(H_2C_2O_4·2H_2O)为原料,利用沉淀法制备纳米氧化铁,使用钛酸酯偶联剂和硅烷偶联剂对其改性,制备含氧化铁超疏水织物.利用红外光谱及扫描电镜进行分析,讨论氧化铁煅烧温度、时间、改性剂、光源对氧化铁降解效率的影响,并研究紫外光照射对含氧化铁超疏水织物润湿性的影响.结果表明,400℃煅烧的氧化铁降解活性染料效率最好,氧化铁降解活性染料效率随时间的增大而增大.改性后的氧化铁降解染料效率明显提高,硅烷偶联剂的降解率可达99%.且紫外灯的光催化效果最好.经紫外光照射后,氧化铁织物的接触角有明显减小,改性氧化铁织物的润湿性由超疏水变成超亲水,实现了在紫外光照射下织物表面润湿性的转变.
With FeSO4·7H2O and oxalic acid H2C2O4·2H2O as raw material,nano iron oxider was prepared by precipitation method.The iron oxide superhydrophobic fabric was prepared by using titanate coupling agent and silane coupling agent to modify.The infrared spectrum,scanning electron microscope and thermogravimetric analysis were carried out.The effects of calcining temperature,time and modifier on degradation efficiency of iron oxide were discussed.The effect of light source on the degradation of dye efficiency by iron oxide was studied.The effect of ultraviolet light on the wettability of superhydrophobic fabrics containing iron oxide was studied.The results show that the efficiency of oxidative degradation of reactive dyes at 400℃is the best,and that of ferric oxide degrading reactive dyes increases with time.Obviously,the degradation rate of silane coupling agent can reach 99%.and the UV light has the best photocatalytic effect.After UV irradiation,the contact angle of the iron oxide fabric decreases obviously,the wettability of the modified iron oxide fabric is shifted from superhydrophobicity to superhydrophilicity,and the transformation of the wettability of fabric surface under ultraviolet light is realized.
作者
刘筱
张彩宁
王煦漫
刘笑笑
宋美娟
张宇宇
LIU Xiao;ZHANG Caining;WANG Xuman;LIU Xiaoxiao;SONG Meijuan;ZHANG Yuyu(School of Materials Science and Engineering,Xi’an Polytechnic University,Xi’an 710048,China)
出处
《纺织高校基础科学学报》
CAS
2018年第4期394-399,共6页
Basic Sciences Journal of Textile Universities
基金
陕西省教育厅专项科研计划项目(17JK0324)
大学生创新创业训练项目(1718)
关键词
纳米氧化铁
沉淀法
光催化
超疏水转变
织物
润湿性
nanoscale iron oxide
precipitation method
photocatalysis
superhydrophobic transition
fabric
wettability
