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Synthesis of carbon dots@Fe3O4 and their photocatalytic degradation properties to hexaconazole
NanoImpact ( IF 4.7 ) Pub Date : 2021-02-23 , DOI: 10.1016/j.impact.2021.100304
Shuang Rong 1 , Xinyi Tang 1 , Huihui Liu 1 , Junhu Xu 1 , Zitong Yuan 1 , Xinya Peng 1 , Jinzhi Niu 2 , Yan Wu 3 , Lin He 2 , Kun Qian 1
Affiliation  

The CD@Fe3O4 photocatalysts were synthesized via hydrothermal synthesis method. The CD@Fe3O4 particles were synthesized using Fe3O4 as the core and using citric acid and ethylenediamine as a raw material, which were heated to 200 °C for 4 h. The synthesized fluorescent CD@Fe3O4 was characterized by HR-TEM, IR and fluorescence spectrophotometer. The HR-TEM results showed CD and Fe3O4 nanoparticles were uniform, mono-dispersed sphere or hemisphere particles with an average size of approximately 3 nm, and particle size of CD@Fe3O4 were mainly in range of 20–30 nm. XRD results showed the nanoparticles mainly belonged to Fe3O4 and CD@Fe3O4, which made recycling our photocatalysts possible due to the magnetic performance. On daylight lamp, the half-life of hexaconazole in CD@Fe3O4 photocatalysts was about 4 days, and it is lower than half-life (over 100 days) of hexaconazole without CD@Fe3O4 photocatalysts.



中文翻译:

碳点@Fe3O4的合成及其光催化降解己唑醇的性能

CD@Fe 3 O 4光催化剂采用水热合成法合成。CD@Fe 3 O 4颗粒以Fe 3 O 4为核心,以柠檬酸和乙二胺为原料,加热至200 ℃反应4 h。合成的荧光CD@Fe 3 O 4用HR-TEM、IR和荧光分光光度计进行了表征。HR-TEM结果表明CD和Fe 3 O 4纳米粒子为均匀的、单分散的球状或半球状粒子,平均粒径约为3 nm,粒径为CD@Fe 3 O 4主要在 20-30 nm 范围内。XRD结果表明纳米粒子主要属于Fe 3 O 4和CD@Fe 3 O 4,这使得我们的光催化剂由于磁性能的回收成为可能。在日光灯下,己康唑在CD@Fe 3 O 4光催化剂中的半衰期约为4天,低于没有CD@Fe 3 O 4光催化剂的己康唑的半衰期(超过100天)。

更新日期:2021-03-03
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