摘要
采用浸渍法将中间体rGO-CeO_(2)NPs与杂多酸K_(8)[Ni(H_(2)O)W_(11)MnO_(39)]成功合成三元复合材料K_(8)[Ni(H_(2)O)W_(11)MnO_(39)]@rGO-CeO_(2)NPs,通过XRD、FT-IR、UV-Vis、XPS、SEM-EDS、N_(2)吸附-脱附等表征其结构与性能,并且利用K_(8)[Ni(H_(2)O)W_(11)MnO_(39)]@rGO-CeO_(2)NPs三元复合材料作为催化剂,对龙胆紫进行光催化降解实验。结果表明:在pH 4、50 mL 5 mg/L龙胆紫溶液中加入0.20 g K_(8)[Ni(H_(2)O)W_(11)MnO_(39)]@rGO-CeO_(2)NPs三元复合材料为优化光降解条件,降解率可达94.89%。进行3次重复回收实验,降解率仍能达到70%以上。
The ternary composite K_(8)[Ni(H_(2)O)W_(11)MnO_(39)]@rGO-CeO_(2)NPs was successfully prepared by the impregnation method with intermediate rGO-CeO_(2)NPs and heteropoly acid K_(8)[Ni(H_(2)O)W_(11)MnO_(39)].Its structure and properties were characterized by XRD,FT-IR,UV-Vis,XPS,SEM-EDS,N_(2)adsorption-desorption,etc,and K_(8)[Ni(H_(2)O)W_(11)MnO_(39)]@rGO-CeO_(2)NPs ternary composite material was used as catalyst for the photocatalyt⁃ic degradation of gentian violet.The results showed that 0.20 g of K_(8)[Ni(H_(2)O)W_(11)MnO_(39)]@rGO-CeO_(2)NPs com⁃posite material were added to 50 mL 5 mg/L gentian violet solution at pH 4 as the optimal photodegradation conditions for the experiment,the decolorization rate could reach 94.89%.After three repeated recovery experi⁃ments,the degradation rate could still reach more than 70%.
作者
刘桐桐
单秋杰
孙佳昆
陈林
陈伟
LIU Tongtong;SHAN Qiujie;SUN Jiakun;CHEN Lin;CHEN Wei(College of Chemistry and Engineering,Qiqihar University,Qiqihar 161006,China)
出处
《印染助剂》
CAS
2022年第9期33-39,共7页
Textile Auxiliaries
关键词
杂多酸
氧化石墨烯
二氧化铈
光降解
龙胆紫
heteropoly acid
graphene oxide
cerium dioxide
photodegradation
gentian violet
