Loading...
Please wait, while we are loading the content...
Similar Documents
Facile Synthesis of Porous $g-C_{3}N_{4}$ with Enhanced Visible-Light Photoactivity
| Content Provider | MDPI |
|---|---|
| Author | Yao, Guangyuan Liu, Yuqiang Liu, Jingcai Xu, Ya |
| Copyright Year | 2022 |
| Description | Porous graphitic carbon nitride $(g-C_{3}N_{4}$) was prepared by dicyandiamide and urea via the pyrolysis method, which possessed enhanced visible-light-driven photocatalytic performance. Its surface area was increased from 17.12 to 48.00 $m^{2}$/g. The porous structure not only enhanced the light capture capacity, but also accelerated the mass transfer ability. The Di (Dicyandiamide)/Ur (Urea) composite possessed better photocatalytic activity for Rhodamine B in visible light than that of $g-C_{3}N_{4}$. Moreover, the Di/Ur-4:5 composite showed the best photoactivity, which was almost 5.8 times that of $g-C_{3}N_{4}$. The enhanced photocatalytic activity showed that holes and superoxide radical played a key role in the process of photodegradation, which was ascribed to the enhanced separation of photogenerated carriers. The efficient separation of photogenerated electron-hole pairs may be owing to the higher surface area, O dopant, and pore volumes, which can not only improve the trapping opportunities of charge carriers but also the retarded charge carrier recombination. Therefore, it is expected that the composite would be a promising candidate material for organic pollutant degradation. |
| Starting Page | 1754 |
| e-ISSN | 14203049 |
| DOI | 10.3390/molecules27061754 |
| Journal | Molecules |
| Issue Number | 6 |
| Volume Number | 27 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-03-08 |
| Access Restriction | Open |
| Subject Keyword | Molecules Environmental Engineering Environmental Sciences Porous G-c3n4 O Doping Visible-light Irradiation Photocatalysis |
| Content Type | Text |
| Resource Type | Article |
