Eu/g-C_(3)N_(4)材料制备及光催化性能  

Preparation of Eu/g-C_(3)N_(4)and Its Photocatalytic Properties

作　　者：邓海涛 杨少才 孙墨杰[3] 雷海东 王鑫 韦慧珍 李亚琳 DENG Haitao;YANG Shaocai;SUN Mojie;LEI Haidong;WANG Xin;WEI Huizhen;LI Yalin(State Power Investment Corporation Northeast Electric Power Co.,Ltd,Shenyang 110015,China;China Power Investment Northeast Energy Technology Co.,Ltd,Shenyang 110015,China;School of Chemical Engineering,Northeast Electric Power University,Jilin 132012,China;State Power Investment Corporation Chaoyang Yanshanhu Power Generation Co.,Ltd,Chaoyang 122004,China)

机构地区：[1]国家电投集团东北电力有限公司,辽宁沈阳110015 [2]中电投东北能源科技有限公司,辽宁沈阳110015 [3]东北电力大学化学工程学院,吉林吉林132012 [4]国家电投朝阳燕山湖发电有限公司,辽宁朝阳122004

出　　处：《北华大学学报(自然科学版)》2025年第3期395-401,共7页Journal of Beihua University(Natural Science)

基　　金：东北电力大学横向课题(DNYZC-2023-10-01-104-08)。

摘　　要：以六水合硝酸铕为铕源,采用简单的一步煅烧法制备Eu/g-C_(3)N_(4)光催化材料。利用XRD、SEM、EDX、FT-IR、PL、UV-vis表征材料的晶相结构、形貌及元素分布,并分析光学性能;利用电化学工作站测试材料的电化学性能;在氙灯模拟自然光直接照射下,通过降解氧氟沙星试验分析材料光催化性能。结果表明:制备的Eu/g-C_(3)N_(4)为具有细密孔隙的层状结构材料,Eu元素在材料表面均匀分布,掺杂改性后材料的吸收边缘发生红移;Eu/g-C_(3)N_(4)对氧氟沙星的降解率远高于g-C_(3)N_(4),当硝酸铕加入量为0.07 g时制备的样品性能达到最佳,光催化降解氧氟沙星效率是纯相g-C_(3)N_(4)的3.8倍。Using europium nitrate hexahydrate as the europium source,Eu/g-C_(3)N_(4)photocatalytic material was prepared via a straightforward one-step calcination method.The crystal structure,morphology,and elemental distribution of the material were characterized by XRD,SEM,EDX,FT-IR,PL,and UV-vis,and its optical properties were analyzed.Additionally,an electrochemical workstation was employed to test the material’s electrochemical performance.Under simulated natural light generated by a xenon lamp,the photocatalytic performance of the material was evaluated through the degradation of ofloxacin.The results indicate that the synthesized Eu/g-C_(3)N_(4)exhibits a layered structure with dense porosity,and the Eu element is uniformly distributed across its surface.Doping modification led to a red shift in the absorption edge of the material.The degradation rate of ofloxacin by Eu/g-C_(3)N_(4)was significantly higher than that by g-C_(3)N_(4),with the sample containing 0.07 g of europium nitrate showing the optimal performance.The photocatalytic efficiency of Eu/g-C_(3)N_(4)in degrading ofloxacin was 3.8 times that of pure-phase g-C_(3)N_(4).

关 键 词：g-C_(3)N_(4) 光催化 稀土元素 氧氟沙星 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学]