光催化
镰刀菌
异质结
X射线光电子能谱
高分辨率透射电子显微镜
材料科学
化学
核化学
化学工程
透射电子显微镜
纳米技术
生物
植物
有机化学
光电子学
催化作用
工程类
作者
Yunlei Zhou,Zhuangzhuang Wang,Huanshun Yin,Xiaoting Cui,Ying Tian,Zhiwei Qiao,Suo Wang,Runye Hu,Wenjing Lv,Anmin Liu,Jun Wang
出处
期刊:Chemosphere
[Elsevier]
日期:2023-08-01
卷期号:331: 138768-138768
被引量:6
标识
DOI:10.1016/j.chemosphere.2023.138768
摘要
2D Ag/BiOCl/Bi2O2CO3 S-scheme heterojunction was prepared with oxygen vacancy (OVs) via one-pot hydrothermal method. The XRD and XPS analysis indicated the synthesized sample contained Ag nanoparticles (AgNPs) instead of Ag ions. The SEM and HRTEM pictures showed that BiOCl/Bi2O2CO3 nanosheets were modified with AgNPs. Compared with AgNPs, BiOCl, and Bi2O2CO3, Ag/BiOCl/Bi2O2CO3 exhibited highly photocatalytic inactivation of pathogenic fungi (Fusarium graminearum) due to the wide light absorption range and S-scheme heterojunction structure, which improved the production and transfer of photogenerated carrier, and enhanced the separation of photogenerated e-/h+ pairs. In addition, the improved photocatalytic disinfection against Fusarium graminearum of Ag/BiOCl/Bi2O2CO3 was verified in Sedeveria Letizia plant. Furthermore, active species capture assay and ESR experiments disclosed the involvement of OVs, h+, ∙O2-, ∙OH, and -for Fusarium graminearum destruction during photocatalysis process. The S-scheme heterojunction was proved via oxygen vacancy, which was extensively beneficial to increase charge transmission and separation efficiency. Our work proposed Ag/BiOCl/Bi2O2CO3 was an efficient and ecological fungicide to inactive Fusarium graminearum in vitro and vivo for crop disease.
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