CFs/CNG复合光催化材料降解水中的有机污染物  

Degradation of organic pollutants in water by CFs/CNG composite photocatalytic materials

作　　者：张家晶 郑永杰[1] 赵云鹏[1] 杨思琪 ZHANG Jiajing;ZHENG Yongjie;ZHAO Yunpeng;YANG Siqi(College of Chemistry and Engineering,Qiqihar University,Qiqihar 161006,China)

机构地区：[1]齐齐哈尔大学化学与化学工程学院,黑龙江齐齐哈尔161006

出　　处：《印染助剂》2022年第9期40-45,共6页Textile Auxiliaries

基　　金：黑龙江省教育厅基本业务项目(135309109);黑龙江省教育厅基本业务项目(135209226);黑龙江省省属高校基本科研业务费科研项目(YSTSXK201810);黑龙江省省属高校基本科研业务费科研项目(YSTSXK201850);齐齐哈尔大学大学生创新创业训练计划项目(201910232043)。

摘　　要：采用热聚合法制备石墨相氮化碳(g-C_(3)N_(4)),以碳纤维布(CFs)为载体,氧掺杂g-C_(3)N_(4)(CNG)为活性组分制备复合材料,以甲基橙、亚甲基蓝、罗丹明B为探针分子,分别以CNG和CFs/CNG为光催化剂,测试对探针分子的去除性能。通过XRD、SEM、FT-IR等手段对催化剂的形貌进行表征,并对催化剂光催化机理进行推测。结果表明:CNG呈现纳米片状结构,CFs/CNG呈现碳纤维束编织物,表面附有许多纳米层状物质。在可见光照射下,CNG对甲基橙、亚甲基蓝、罗丹明B的降解效果分别是g-C_(3)N_(4)的7倍、7倍、10倍,CFs/CNG对甲基橙、亚甲基蓝、罗丹明B的降解效果分别是g-C_(3)N_(4)的64倍、77倍、51倍。此外,制备的复合材料在7次循环使用后仍然保持了良好的光催化性能,具有良好的稳定性和重复使用性。A graphite phase carbon nitride(g-C_(3)N_(4))photocatalyst was synthesized via a facile thermal po⁃lymerization synthesis method and using carbon fiber cloth(CFs)as the carrier and oxygen-doped g-C_(3)N_(4)(CNG)as the active component.Using methyl orange,methylene blue,and rhodamine B as probe,CNG or CFs/CNG as photocatalyst,the removal performance test was carried out.Meanwhile,the photocatalysts were characterized by XRD,SEM and FT-IR.The photocatalytic mechanism of the catalyst was speculated.The re⁃sults showed that CNG had a nano-sheet structure,and CFs/CNG presented a carbon fiber braid with many nano-layered materials attached to the surface.Under visible light irradiation,the degradation effects of CNG on methyl orange,methylene blue and rhodamine B was 7,7 and 10 times than that of pure g-C_(3)N_(4),respec⁃tively.CFs/CNG exhibited better photocatalytic activity on methyl orange,methylene blue and rhodamine B,which was 64,77 and 51 times than that of pure g-C_(3)N_(4),respectively.Finally,7 cycles of photocatalytic exper⁃iments revealed an excellent stability and reusability of CFs/CNG composite.

关 键 词：氮化碳 碳纤维布 热聚合 光催化 降解 

分 类 号：TS193.6[轻工技术与工程—纺织化学与染整工程]