We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Enhanced Photocatalytic Degradation of Organic Matter In Nuclear Waste Liquid Under Visible Light by a Ternary Thin Layer System Based on g-C<sub>3</sub>N<sub>4</sub>.
- Authors
Shi, Xiaozhong; Zhao, Bin; Sun, Siqin; Wu, Linzhen; Zhang, Ling; Zhang, Youkui; Duan, Tao
- Abstract
Graphitic carbon nitride (g-C3N4)-based materials are considered promising catalysts for organic waste photodegradation due to their excellent photocatalytic activity and stability. Herein, a ternary thin layer system based on g-C3N4 was prepared by hexagonal boron nitride (h-BN) deposition followed by liquid phase ultrasonic stripping and Ag deposition (marked as Ag-BCN), which increased the specific surface area of g-C3N4, expanded the corresponding range of the visible-near-infrared spectrum of g-C3N4 and promoted the photo-generated electron–hole pair separation in g-C3N4 to improve the photocatalytic efficiency of pure g-C3N4. The results showed that after deposition of h-BN and Ag into bulk g-C3N4 and liquid phase ultrasonic stripping, the efficiency of photocatalytic degradation of tannic acid (TA) was enhanced. The efficiency of photocatalytic degradation of TA by Ag-BCN-2 was 84.3% at 90 min, which was 1.6 times the efficiency of bulk g-C3N4. After deposition of h-BN and Ag into pure g-C3N4, Ag-BCN was prepared and had enhanced efficiency of photocatalytic degradation of TA. The electronegativity of h-BN promoted the separation of photo-generated electron-hole pair in g-C3N4 and the low Fermi level of Ag passed negative charges. When the mass fraction of Ag was 10wt%, the Ag-BCN-2 showed the highest photocatalytic efficiency.
- Subjects
PHOTODEGRADATION; LIQUID waste; NUCLEAR matter; VISIBLE spectra; ORGANIC compounds; RADIOACTIVE wastes; ELECTRONEGATIVITY
- Publication
NANO, 2024, Vol 19, Issue 4, p1
- ISSN
1793-2920
- Publication type
Article
- DOI
10.1142/S1793292024500127