纤维基钒酸铋的制备及其光催化性能  

Preparation and photocatalytic properties of BiVO_4 loaded fiber

作　　者：蓝舟[1] 瞿建刚[1] 王春梅[1] 徐俊芳 钱佳琪 LAN Zhou, QU Jian′gang, WANG Chunmei, XU Junfang, QIAN Jiaqi(School of Textile and Clothing, Nantong University, Nantong, Jiangsu 226019, China)

机构地区：[1]南通大学纺织服装学院,江苏南通226019

出　　处：《纺织学报》2018年第6期89-95,共7页Journal of Textile Research

基　　金：江苏省高校自然科学基金面上项目(16KJB540002);江苏省大学生创新训练计划项目(201610304093X);南通市应用基础研究工业创新项目(GY12016031)

摘　　要：为提高光催化材料钒酸铋的使用性能,采用原位生长法在阳离子可染涤纶上负载钒酸铋,探讨了溶液p H值、反应温度、反应时间对钒酸铋晶体形貌的影响,借助扫描电子显微镜、X射线衍射以及紫外-可见吸收光谱等手段表征了纤维基钒酸铋的表面形貌、晶型、颗粒大小以及光学特性。选取活性黑KN-B为降解对象,研究了纤维基钒酸铋在可见光下的催化降解活性。结果表明:原位生长法制备纤维基钒酸铋的最佳条件为溶液p H值7、反应温度90℃、反应时间8 h;在可见光照射条件下,180 min内纤维基钒酸铋对质量浓度为20 mg/L的活性黑KN-B染料溶液的降解率可达到77.2%,重复利用3次后的降解率保持在57.3%,织物强力保留率为74.8%。In order to improve the photocatalytic performance of bismuth vanadate（BiVO 4）, BiVO 4 was loaded on the cationic-dyeable polyester by in-situ growth method. The influence of pH value, reaction temperature and time on the morphology of BiVO 4 were also investigated. Surface morphology, crystal form, particle size and optical characteristic were characterized by scanning electron microscope, X-ray diffractometer and ultraviolet-visible spectrophotometer. The photocatalytic activity of the BiVO 4 -loaded fiber catalysts was investigated by studying the degradation of Reactive Black KN-B. The results show that the optimum preparation conditions of BiVO 4 -loaded fiber are pH value of 7, reacting temperature of 90 ℃for 8 h. The degradation ratio of 20 mg/L Reactive Black KN-B solution is approximately 77.2% by the photocatalytic fabric under visible light irradiation condition within 180 min. After being reused for three times, the degradation ratio maintains 57.3%, and the bursting strength retention is 74.8%.

关 键 词：钒酸铋 阳离子可染涤纶 原位生长法 光催化 活性黑KN-B 

分 类 号：TQ342.8[化学工程—化纤工业]