阳离子型皮革胶原基衍生物/Fe掺杂TiO_(2)复合材料的制备及其增强太阳光催化活性研究  

Preparation of CPAD-Fe^(3+)/TiO_(2) composite for their significantly enhanced catalytic activity under solar radiation

作　　者：李崇裔 余小光[1] 廖红光[1] 刘宏[1] 童孟良[1] Li Chongyi;Yu Xiaoguang;Liao Hongguang;Liu Hong;Tong Mengliang(School of Chemical Engineering,Hunan Chemical Vocational Technology College,Zhuzhou 412000)

机构地区：[1]湖南化工职业技术学院化学工程学院,株洲412000

出　　处：《化工新型材料》2022年第10期208-213,共6页New Chemical Materials

基　　金：湖南省自然科学基金项目(2019JJ70071)。

摘　　要：通过结构设计,将阳离子胶原基衍生物(CPAD)化学固定至铁掺杂二氧化钛(Fe^(3+)/TiO_(2))球形颗粒表面,构成一种新型的复合材料CPAD-Fe^(3+)/TiO_(2)。利用核磁共振氢谱、X射线衍射、紫外吸收光谱、扫描电镜、透射电镜、X射线光电子能谱等测试方法对样品进行了系统性表征。采用甲基橙(MO)溶液模拟印染废水,研究了样品在太阳辐射下的光催化活性。结果表明:当CPAD添加量为3%,溶液pH为3时,CPAD-Fe^(3+)/TiO_(2)对MO的降解效率高达94.91%(120min),且具有较好的可重复使用性。A unique cationic collagon-based derivative/Fe-doped TiO_(2)(CPAD-Fe^(3+)/TiO_(2))composite was designed and fabricated by chemical immobilization of CPAD onto the surface of Fe-doped TiO_(2).The chemical structures,morphologies and properties of the samples were systematacially characterized by hydrogen nuclear magnetic resonance(^(1)H-NMR),X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),ultra violet-visiblespectroscopy(UV-Vis)and X-ray photoelectron spectroscopy(XPS).In addition,the photocatalytic activities of the samples were also studied under solar radiation and used methyl orange(MO)solution as model dyeing wastewater.The results showed that the degradation rate of CPAD-Fe^(3+)/TiO_(2)could reach up to 94.91%(120min)when the addition of CPAD was 3%and pH value of MO solution controlled at 3,which had good reusability as well.

关 键 词：阳离子胶原基衍生物 铁掺杂二氧化钛 复合材料 光催化活性 

分 类 号：TB333[一般工业技术—材料科学与工程]