用于增强罗丹明B和苯酚降解光催化性能的高效AgPO/g-CN Z型光催化剂
Highly Efficient AgPO/g-CN Z-Scheme Photocatalyst for Its Enhanced Photocatalytic Performance in Degradation of Rhodamine B and Phenol.
作者信息
Zhang Mingxi, Du Hanxiao, Ji Juan, Li Fengfeng, Lin Y C, Qin Chenwei, Zhang Ze, Shen Yi
机构信息
Light Alloy Research Institute, Central South University, Changsha 410083, China.
Key Laboratory of Inorganic Nonmetallic Materials Hebei Province, College of Materials Science and Engineering, North China University of Science and Technology, Tangshan 063210, China.
出版信息
Molecules. 2021 Apr 3;26(7):2062. doi: 10.3390/molecules26072062.
AgPO/g-CN heterojunctions, with different g-CN dosages, were synthesized using an in situ deposition method, and the photocatalytic performance of g-CN/AgPO heterojunctions was studied under simulated sunlight conditions. The results revealed that AgPO/g-CN exhibited excellent photocatalytic degradation activity for rhodamine B (Rh B) and phenol under the same light conditions. When the dosage of g-CN was 30%, the degradation rate of Rh B at 9 min and phenol at 30 min was found to be 99.4% and 97.3%, respectively. After five cycles of the degradation experiment for Rh B, g-CN/AgPO still demonstrated stable photodegradation characteristics. The significant improvement in the photocatalytic activity and stability of g-CN/AgPO was attributed to the rapid charge separation between g-CN and AgPO during the Z-scheme charge transfer and recombination process.
采用原位沉积法合成了不同g-CN用量的AgPO/g-CN异质结，并在模拟太阳光条件下研究了g-CN/AgPO异质结的光催化性能。结果表明，在相同光照条件下，AgPO/g-CN对罗丹明B（Rh B）和苯酚表现出优异的光催化降解活性。当g-CN用量为30%时，9分钟时Rh B的降解率和30分钟时苯酚的降解率分别为99.4%和97.3%。经过5次Rh B降解实验循环后，g-CN/AgPO仍表现出稳定的光降解特性。g-CN/AgPO光催化活性和稳定性的显著提高归因于在Z型电荷转移和复合过程中g-CN与AgPO之间的快速电荷分离。
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