光催化
材料科学
氧化剂
石墨氮化碳
光致发光
复合数
化学工程
激进的
异质结
催化作用
降级(电信)
光电子学
复合材料
化学
有机化学
工程类
电信
计算机科学
标识
DOI:10.1088/1361-6641/abea6e
摘要
Abstract Solar-driven nano-semiconductor catalysts have shown great potential in solving environmental pollution and energy issues. They convert solar energy into chemical energy, release strong oxidizing hydroxyl radicals (OH·), and thoroughly degrade organic pollutants. However, these photocatalysts in turn may also damage some organic carriers. Therefore, we have used graphite phase carbon nitride (g-C 3 N 4 ) as the isolation layer to prevent the carrier polyester fiber (PET) from being oxidized by zinc oxide (ZnO). ZnO-g-C 3 N 4 @PET composite has been prepared by hydrothermal method, photoluminescence results indicated that ZnO-g-C 3 N 4 @PET has a low photo-generated charge recombination rate, while g-C 3 N 4 improves the visible light response of the composite and exhibits an obvious photocatalytic enhancement effect. In the experiment of degrading methylene blue (MB), the degradation efficiency of ZnO-g-C 3 N 4 @PET composite has been significantly improved compared with ZnO@PET and g-C 3 N 4 @PET alone. In addition, the prepared photocatalyst also has good reusability and still maintains a high degradation rate after five cycles of tests. In the end, a possible mechanism and a pathway of photocatalytic degradation of MB were proposed. All in all, this is a feasible way to build a highly efficient, environmentally friendly and sustainable supported photocatalyst.
科研通智能强力驱动
Strongly Powered by AbleSci AI