光降解
光催化
降级(电信)
化学
碳纤维
叶酸
催化作用
光化学
核化学
环境化学
材料科学
有机化学
医学
电信
复合数
计算机科学
内科学
复合材料
作者
Yasmin M. Bakier,Haitham M. El‐Bery
标识
DOI:10.1016/j.jece.2023.111493
摘要
The presence of sulfamethazine (SMZ) in the environment poses significant risks to both ecological systems and human health, necessitating the development of efficient degradation methods. This study presents a novel approach for synthesizing green carbon dots (G-CDs) using expired folic acid tablets as a single precursor through a one-pot hydrothermal process for the photodegradation of SMZ, which has not been reported before. Notably, green-synthesized carbon dots (G-CDs) exhibited superior performance compared to those synthesized from pure folic acid for SMZ photodegradation. The results demonstrated that under simulated sunlight irradiation, G-CDs achieved over 94% degradation of SMZ within 75 minutes, while FA-CDs only degraded around 10% of SMZ. Full SMZ photodegradation was realized under optimal conditions. Further investigation into the kinetics and photogenerated charge carriers revealed that the photocatalytic degradation mechanism of SMZ was mainly due to holes, hydroxyl radical and superoxide anions. These findings emphasize the potential of green-synthesized G-CDs as highly efficient photocatalysts for environmental remediation applications, particularly in the degradation of organic pollutants.
科研通智能强力驱动
Strongly Powered by AbleSci AI