首页|二维层状ZnNiAl-LDH负载氧化亚铜光催化剂的制备及其降解性能

二维层状ZnNiAl-LDH负载氧化亚铜光催化剂的制备及其降解性能

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用沉淀法将ZnNiAl-LDH掺杂在Cu2O中制备出一种可见光光催化剂.用这种催化剂可见光降解四环素(TC),研究其光催化性能.结果表明,这种ZnNiAl-LDH/Cu2O的催化活性比纯Cu2O的更高,掺杂7％ZnNiAl-LDH的ZnNiAl-LDH/Cu2O光催化剂其降解活性最优,在50 min内能将TC降解89.6％.这表明,ZnNiAl-LDH/Cu2O催化剂对TC的光催化降解活性较高.7％ZnNiAl-LDH/Cu2O具有较高光降解效率的原因是,在Cu2O与ZnNiAl-LDH之间高效的界面电荷转移和协同作用提高了光生电子空穴对的分离效率.
Preparation and Degradation Performance of Composite Photocatalyst of Two-Dimensional Layered ZnNiAl-LDH/Cuprous Oxide Particles
A highly active and stable visible light photocatalyst of composite ZnNiAl-LDH/Cu2O was successfully prepared by using co-precipitation method to depositing two-dimensional layered ZnNiAl-Zn-NiAl-LDH on Cu2O particles.The photocatalytic activity of the prepared composite catalyst was evaluated by the degradation of tetracycline(TC)under visible light.It is found that the developed ZnNiAl-LDH/Cu2O exhibited higher activity than the pure Cu2O,while the ZnNiAl-LDH/Cu2O photocatalyst doped with 7% of ZnNiAl-LDH exhibited the highest photodegradation activity,by which 89.6% of TC was decomposed with-in 50 minutes.The ZnNiAl-LDH/Cu2O photocatalyst present considerably high photocatalytic degradation activities on TC.The high photodegradation efficiency of 7% ZnNiAl-LDH/Cu2O could be ascribed to the ef-ficient interfacial charge transfer at the composite and the synergistic effect between Cu2O and ZnNiAl-LDH,which resulted in the enhanced separation efficiency of photogenerated electron-hole pairs.

inorganic non-metallic materialsprecipitation methodcuprous oxideZnNiAl-LDHtet-racyclinephotodegradation property

郭智楠、赵强、李淑英、王俊丽、许琳、尚建鹏、郭永

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山西大同大学化学与化工学院 大同 037009

山西省清洁能源材料联合实验室 大同 037009

煤基生态碳汇技术教育部工程研究中心 大同 037009

无机非金属材料 沉淀法 Cu2O ZnNiAl-LDH 四环素 光降解性能

国家自然科学基金山西省自然科学基金山西省自然科学基金山西省自然科学基金山西省留学回国人员科技活动项目择优资助山西大同大学博士科研启动基金山西大同大学博士科研启动基金山西大同大学研究生创新基金山西大同大学研究生创新基金山西省大学生创新创业训练计划项目山西省大学生创新创业训练计划项目

21908135201901D111308201901D211435201801D2210572019-202018-B-012020-B-0221CX2222CX17202208072016172

2024

10.11901/1005.3093.2023.328

材料研究学报
国家自然科学基金委员会 中国材料研究学会

材料研究学报

CSTPCD北大核心
影响因子：0.605
ISSN：1005-3093
年,卷(期)：2024.38(6)