We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Construction of nitrogen vacant g-C<sub>3</sub>N<sub>4</sub> nanosheet supported Ag<sub>3</sub>PO<sub>4</sub> nanoparticle Z-scheme photocatalyst for improved visible-light photocatalytic activity.
- Authors
Zhang, Xiuxiu; Yi, Guiyun; Li, Peng; Zheng, Xiaomeng; Shen, Xuhang; Ning, Kunlei; Chen, Lunjian; Zhang, Chuanxiang; Zhang, Yulong; Sun, Qi
- Abstract
The superior photocatalytic activity of semiconductor-based photocatalytic materials has attracted great attention. In this work, a series of novel Ag3PO4/g-C3N4−x (APO/CNx) composites with the Z-scheme structure were fabricated through a facile precipitation method. B naphthol, a typical phenolic compound, was selected to evaluate the photocatalytic activity of all as-prepared photocatalysts. The obtained APO/CNx composites exhibited excellent photocatalytic activity for degradation of B naphthol under visible-light irradiation. Experimental results showed that the degradation rate toward B naphthol could reach to 90.5% for 180 min, which was almost 3.66 times higher than pure g-C3N4, indicating that the presence of nitrogen vacancies and Z-scheme structure could efficiently improve the photocatalytic performance of pure g-C3N4. Furthermore, the results of trapping experiments and electron spin resonance (ESR) spectroscopy manifest that •O2− and •OH radicals were the predominant active substances for B naphthol degradation, and the possible mechanism of improved photocatalytic performance was elucidated. This work will provide an innovative perspective for constructing Z-scheme photocatalysts for the application of photocatalytic in the field of wastewater treatment.
- Subjects
ELECTRON paramagnetic resonance; PHOTOCATALYSTS; PRECIPITATION (Chemistry); PHOTODEGRADATION; NAPHTHOL; WASTEWATER treatment
- Publication
Environmental Science & Pollution Research, 2022, Vol 29, Issue 16, p23094
- ISSN
0944-1344
- Publication type
Article
- DOI
10.1007/s11356-021-17286-9