Photocatalytic degradation of tetracycline by copper(I)oxide loaded on Daylily Stalk derived carbon material  

作　　者：Shuying Li Zhinan Guo Jing Lv Yibo Zhao Jianpeng Shang Qiang Zhao Yong Guo Junli Wang Jianguo Zhao Abuliti Abudula Guoqing Guan 

机构地区：[1]School of Chemistry and Chemical Engineering,Shanxi Datong University,Datong 037009,PR China [2]The Engineering Research Center of Coal-based Ecological Carbon Sequestration Technology of the Ministry of Education,Shanxi Datong University,Datong 037009,PR China [3]Graduate School of Science and Technology,Hirosaki University,1-Bunkyocho,Hirosaki 036-8560,Japan [4]Energy Conversion Engineering Laboratory,Institute of Regional Innovation(IRI),Hirosaki University,3-Bunkyocho,Hirosaki 036-8561,Japan

出　　处：《Carbon Resources Conversion》2024年第2期17-26,共10页碳资源转化（英文）

基　　金：supported by the National Natural Science Foundation of China(21908135);the Natural Science Foundation of Shanxi Province,China(201901D111308,201901D211435,201801D221057);PhD Research Startup Foundation of Shanxi Datong University(2018-B-01,2020-B-02);Postgraduate education Innovation Project of Shanxi Datong University(21CX22,22CX17);Shanxi Province innovation and entrepreneurship training program for college students(20220807,2016172).

摘　　要：In this work,Daylily Stalks derived N doped carbon material(N-DSC)with a high specific surface area was firstly prepared by a chemical activation method,and then cubic Cu_(2)O nanoparticles were combined with the prepared N-DSC to obtain N-DSC/Cu_(2)O composite as the catalyst for the photocatalytic degradation of tetracycline(TC)antibiotics under visible light.It is found that the obtained composite had higher photocatalytic activity than pure Cu_(2)O.Particularly,25 wt%N-DSC/Cu_(2)O composite showed the highest photocatalytic performance with 95%of TC degradation within 100 min and more excellent stability.Combined with various characterizations,it is confirmed that carbon bonds should be conducive to the separation of photoelectron and hole,and the carbon layer with an excellent electrical conductivity on Cu_(2)O can reduce the charge transfer resistance between N-DSC and Cu_(2)O,thereby improving the absorption of visible light and enhancing the photocatalytic activity.Moreover,it is considered that the synergistic effect of photo-generated electron pair in Cu_(2)O and N-DSC could promote the photodegradation efficiency of N-DSC/Cu_(2)O composite.In addition,the active species capture experiment confirmed that·OH and·O_(2)should be the main active species for TC degradation under visible light.This study is expected to provide a novel low-cost photocatalysts for pollutants removal.

关 键 词：Visible-light photocatalysts N-DSC/Cu_(2)O composite PHOTODEGRADATION Tetracycline antibiotics 

分 类 号：O643[理学—物理化学]