光催化
异质结
材料科学
化学工程
降级(电信)
兴奋剂
金属有机骨架
光降解
纳米技术
吸附
催化作用
光电子学
化学
有机化学
电信
计算机科学
工程类
作者
Zhaoyue Luo,Dongguang Yin,Liyue Tao,Junjie Ren
出处
期刊:Langmuir
[American Chemical Society]
日期:2022-10-10
卷期号:38 (42): 12968-12980
被引量:6
标识
DOI:10.1021/acs.langmuir.2c02256
摘要
Norfloxacin (NOR) and tetracycline (TC), two widely used antibiotic drugs released to the aquatic environment, induce harm to ecosystems. In this study, an effective method was developed successfully to remove NOR and TC by photocatalysis with a novel heterojunction NC/NH2-MIL-53(Fe), which was fabricated by combining a metal–organic framework (MOF) material (NH2-MIL-53(Fe)) and N-doped carbon (NC) nanoparticles via a facile solvent thermal method. The prepared product exhibits outstanding photocatalytic efficiencies toward degradation of NOR and TC that are 15 and 6 times higher than those of pure NH2-MIL-53(Fe), respectively. Moreover, it is higher than those of the related materials reported previously. The greatly enhanced photocatalytic performance is assigned to the fabricated heterojunction with well-matched energy band gaps, where the NC acts as an efficient electron transfer/reservoir material to effectively promote the migration and transfer and restrain the recombination of charge carriers. In addition, the formed heterojunction increases specific surface area and light absorbance. The photocatalytic activity enhanced mechanism, degradation products, and pathway were investigated. The present study offers a novel strategy to significantly improve the photocatalytic performances of MOFs for highly efficient photocatalytic removal of antibiotic drugs in wastewater.
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