期刊
CHEMICAL ENGINEERING JOURNAL
卷 404, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2020.126528
关键词
Graphitic carbon nitride; Nanostructures; Various enhanced strategies; Targeted organisms; Photodynamic inactivation mechanisms
资金
- National Natural Science Foundation of China [21675127]
- Shaanxi Provincial Science Fund for Distinguished Young Scholars [2018JC-011]
- Development Project of Qinghai Provincial Key Laboratory [2017-ZJ-Y10]
- Capacity Building Project of Engineering Research Center of Qinghai Province [2017-GX-G03]
Photodynamic inactivation using graphitic carbon nitride (g-C3N4) has been widely researched for sterilization, with nanostructured materials showing great potential in enhancing its efficacy. This review systematically analyzed studies on g-C3N4-based nanostructured materials, discussing strategies, light sources, targeted organisms, and future perspectives.
Photodynamic inactivation that can directly utilize renewable solar energy for sterilization has attracted widespread attention in countering global environment deterioration and bacterial pollution. Graphitic carbon nitride (g-C3N4), a metal-free polymeric semiconductor with a mild band gap (2.7 eV), excellent optical properties and physicochemical stability, has become a hot-spot in photocatalytic sterilization. Nanostructured materials have shown great potential in improving the photodynamic inactivation efficacy of bulk g-C3N4. This review systematically analysed and summarized the latest studies on g-C3N4 based nanostructured materials for photodynamic inactivation. First, strategies to enhance the sterilization of g-C3N4-based nanostructured photodynamic inactivation materials and their contemporary challenges are briefly introduced. Second, the light source and synthetic methods are described. Third, the targeted inactivation organisms, including Gram-negative bacteria, Gram-positive bacteria, drug-resistant bacteria, harmful algae and bacteriophage, are described. In addition, the photocatalyst concentration, corresponding efficacy and mechanisms of sterilization are discussed. Finally, the deficiency and possible future perspectives of g-C3N4-based nanostructured photodynamic inactivation materials are articulated.
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