Bibliographic Details
| Title: |
Preparation of a polyaniline-supported Ce-Ag-doped ZnO nanocomposite for efficient photocatalytic degradation of acid blue 113 dye |
| Authors: |
Mortaza Elahian, Najmeh Ahmadi, Amir Abbas Heidari, Nezamaddin Mengelizadeh, Davoud Balarak |
| Source: |
Results in Engineering, Vol 25, Iss , Pp 103824- (2025) |
| Publisher Information: |
Elsevier, 2025. |
| Publication Year: |
2025 |
| Collection: |
LCC:Technology |
| Subject Terms: |
Ce-Ag-ZnO/PANI, Acid blue 113 dye, Degradation, Energy consumption, Technology |
| More Details: |
In this research, ZnO nanocomposite doped with cerium and silver/polyaniline (Ce-Ag-ZnO/PANI) was synthesized as a photocatalyst for eliminating Acid Blue 113 (AB113) dye. XRD, FESEM, EDX, TEM, UV–Vis, and FTIR analyses were employed to investigate the synthesized samples. Photocatalytic tests demonstrated the better efficiency of synthesized nanocomposite compared to other samples (ZnO and Ce-Ag-ZnO). The result presented that after 60 min of testing, 100 % of AB113 dye was destroyed by this nanocomposite. Energy consumption during the process was calculated to be between 21.3 and 37.8 kWh/m³, depending on radiation intensity ranging from 8 to 32 W. The mineralization level was determined by the percentage of Total Organic Carbon (TOC) removal, while the degree of biodegradability was estimated based on the BOD₅/COD (biological oxygen demand over 5 days/chemical oxygen demand) and BOD₅/TOC ratios. The TOC removal percentage was 0.81 %. Also, the BOD5/COD ratio increased from 0.21 to 0.72, and BOD5/TOC increased from 0.61 to 1.27. Scavenging experiments showed that ●OH and O2•– and holes, all three factors contributed to the degradation of AB113, although the main role was played by the •OH. The findings ascertained that the degradation kinetics follows the pseudo-first-order kinetic (PFO) model. The reaction rate constant for AB113 degradation with Ce-Ag-ZnO/PANI was equal to 0.096 min−1, which was 8.13 and 11.4 times higher than the dye degradation with ZnO and Ce-Ag-ZnO catalysts. Due to its efficient and stable photocatalytic activity, the Ce-Ag-ZnO/PANI synthesized in our study was considered an operative photocatalyst in degrading organic pollutants individually or simultaneously. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
2590-1230 |
| Relation: |
http://www.sciencedirect.com/science/article/pii/S259012302402067X; https://doaj.org/toc/2590-1230 |
| DOI: |
10.1016/j.rineng.2024.103824 |
| Access URL: |
https://doaj.org/article/4e54880191714b349e072835673aba49 |
| Accession Number: |
edsdoj.4e54880191714b349e072835673aba49 |
| Database: |
Directory of Open Access Journals |
