掺杂稀土元素的氧化银纳米粒子制备及其降解染料的研究  

Preparation of Silver Oxide Nanoparticles Doped with Rare Earth Elements and Its Usage in Degrading Dyes

作　　者：杜俊杰 王晶 范立财 谢辉 刘杨 王刚 Du Junjie;Wang Jing;Fan Licai;Xie Hui;Liu Yang;Wang Gang(College of Light Industry,Harbin University of Commerce,Harbin,Heilongjiang,150028,China)

机构地区：[1]哈尔滨商业大学轻工学院,黑龙江哈尔滨150028

出　　处：《化学世界》2024年第6期376-381,共6页Chemical World

基　　金：国家自然科学基金(Nos.52002099,52204376);黑龙江省科技厅黑龙江省应用技术研究与开发(No.GC13C26);黑龙江省自然科学基金(No.18XN051);哈尔滨商业大学大学生创新创业训练计划(No.S202210240002)资助项目。

摘　　要：采用液相沉积技术将AgNO_(3)和NaOH溶液在氨水辅助下,掺杂Sm制备得到氧化银纳米粒子。通过X射线衍射(XRD)和扫描电子显微镜(SEM)对其物相结构和表面形态及其微观结构进行相应的分析,结果表明,制备得到尺寸较为均匀、分散性良好的Ag_(2)O纳米粒子。通过掺杂不同质量分数Sm(Sm的质量分数分别为0.1%,0.3%,0.5%,1.0%)制备得到的氧化银纳米粒子,研究其对甲基橙和罗丹明B在相同条件下的光催化降解试验。研究结果表明,掺杂了质量分数为0.5%Sm的氧化银纳米粒子使甲基橙在40 min内的降解率达到97%;掺杂了质量分数为0.3%Sm的氧化银纳米粒子使罗丹明B在120 min内的降解率达到98%。而掺杂质量分数为0.1%、1.0%Sm的氧化银纳米粒子对这两种染料的降解并无明显效果。由此说明掺杂适量Sm的氧化银纳米粒子对染料降解效果有显著提升。Silver oxide nanoparticles were prepared by liquid deposition technique by doping Sm with AgNO_(3) and NaOH solution assisted by ammonia.The phase structure,surface morphology and microstructure of Ag_(2)O nanoparticles were analyzed by X-ray diffraction(XRD)and scanning electron microscopy(SEM).The results showed that Ag_(2)O nanoparticles with relatively uniform size and good dispersion were prepared.The photocatalytic degradation of silver oxide nanoparticles prepared with different mass fractions of Sm(0.1%,0.3%,0.5%,1.0%)was studied under same conditions.The results showed that the degradation rate of methyl orange reached 97%in 40 min by doping silver oxide nanoparticles with mass fraction 0.5%Sm.The degradation rate of Rhodamine B reached 98%in 120 min by doping silver oxide nanoparticles with mass fraction 0.3%Sm.However,the doped Ag oxide nanoparticles with mass fraction 0.1%and 1.0%Sm had no obvious effect on the degradation of both dyes.Thus,silver oxide nanoparticles doped with proper amount of Sm can significantly improve the degradation effect of dye.

关 键 词：氧化银纳米粒子 稀土元素 光催化 亚甲基蓝 甲基橙 罗丹明B 

分 类 号：TQ630[化学工程—精细化工]