玻璃纤维负载Fe_(3)O_(4)催化膜的制备及其降解染料性能  

Preparation of glass fiber supported Fe_(3)O_(4) catalytic membrane and its dye degradation performance

作　　者：赵永男[1,2] 黄国辉 高海燕[1,2] 安仁德 吕铭含 ZHAO Yong-nan;HUANG Guo-hui;GAO Hai-yan;AN Ren-de;LYU Ming-han(Tianjin Key Laboratory of Advanced Fibers and Energy Storage Technology,Tiangong University,Tianjin 300387,China;School of Material Science and Engineering,Tiangong University,Tianjin 300387,China)

机构地区：[1]天津工业大学天津市先进纤维与储能技术重点实验室,天津300387 [2]天津工业大学材料科学与工程学院,天津300387

出　　处：《天津工业大学学报》2022年第1期16-20,共5页Journal of Tiangong University

基　　金：国家自然科学基金资助项目(21703152);天津市青年科学基金资助项目(17JCQNJC06100);南开大学先进能源材料化学教育部重点实验室开放基金项目。

摘　　要：为了拓宽芬顿反应的pH值使用范围并减少铁淤泥,通过溶剂热法,以氯化铁为前驱体,玻璃纤维为载体,乙二醇为溶剂,成功制备了玻璃纤维负载Fe_(3)O_(4)薄膜的非均相芬顿催化剂,并研究其降解染料性能;采用XRD、FESEM、HTEM等测试手段表征了材料的结构和形貌。结果表明:Fe_(3)O_(4)纳米球形颗粒粒径较小,均匀负载到玻璃纤维表面,形成表面粗糙的颗粒膜;在模拟太阳光辐照条件下,加入0.16 g/L的催化剂和3 mmol/L的H_(2)O_(2),40 mg/L的活性红溶液在50 min后降解率达到100%,而暗环境下催化剂和H_(2)O_(2)共存条件下的降解率只有35.3%;该催化膜在高pH值下也表现出较高的活性,pH=8.5时,活性红的降解效率仍然达到69.6%。该催化膜对活性红溶液进行6次循环降解,活性红溶液仍然能够实现100%脱色。To extend the pH range of photo-Fenton reaction,and reduce the by-product of iron oxide sludge,herein,glass fiber supported Fe_(3)O_(4) nanoparticle film was solvothermally fabricated as heterogeneous photo-Fenton catalyst,with ferric chloride as the precursor,glass fiber as the carrier,and ethylene glycol as the solvent,and its dye degradation performance was studied.The phase identification,structure and morphology of the material were characterized by XRD,FESEM,HTEM.The results showed that tiny nanoparticles of cubic phase Fe_(3)O_(4 )homo-geneously coated on glass fiber to form nanoparticulate film with rough surface.Under simulated sunlight condi-tions,40 mg/L active red solution was completely degraded within 50 min with 0.16 g/L catalyst and 3 mmol/L H_(2)O_(2).In comparison,only 35.3%of the dye was degraded under the co-existence of catalyst and H_(2)O_(2).The pH compatibility was also greatly extended.Even at pH=8.5,a degradation efficiency of 69.6%was achieved.After 6 cycles of degradation,the reactive red solution could still be decolorized 100%.

关 键 词：玻璃纤维 Fe_(3)O_(4) 催化膜 活性红 光芬顿 染料降解 

分 类 号：TQ426.64[化学工程] O643.36[理学—物理化学]