Publication:
Effective reduction of nitrophenols and colorimetric detection of Pb(<scp>ii</scp>) ions by <i>Siraitia grosvenorii</i> fruit extract capped gold nanoparticles
Effective reduction of nitrophenols and colorimetric detection of Pb(<scp>ii</scp>) ions by <i>Siraitia grosvenorii</i> fruit extract capped gold nanoparticles
| datacite.subject.fos | oecd::Engineering and technology | |
| dc.contributor.author | Van Thuan Le | |
| dc.contributor.author | Truong Giang Duong | |
| dc.contributor.author | Van Tan Le | |
| dc.contributor.author | Thanh Long Phan | |
| dc.contributor.author | Thi Lan Huong Nguyen | |
| dc.contributor.author | Tan Phat Chau | |
| dc.contributor.author | Van-Dat Doan | |
| dc.date.accessioned | 2022-10-31T09:49:29Z | |
| dc.date.available | 2022-10-31T09:49:29Z | |
| dc.date.issued | 2021 | |
| dc.description.abstract | This study presents a simple and green approach for the synthesis of Siraitia grosvenorii fruit extract capped gold nanoparticles (SG-AuNPs). The SG-AuNPs samples prepared under the optimized conditions were characterized by various techniques (UV-Vis, XRD, FTIR, HR-TEM, EDX, DLS). The biosynthesized nanoparticles were then studied for the reduction of 2-nitrophenol (2-NP) and 3-nitrophenols (3-NP) and for colorimetric detection of Pb2+ ions. The characterization results revealed that the crystals of SGAuNPs were spherical with an average size of 7.5 nm. The FTIR and DLS analyses proved the presence of the biomolecule layer around AuNPs, which played an important role in stabilizing the nanoparticles. The SG-AuNPs showed excellent catalytic activity in the reduction of 3-NP and 2-NP, achieving complete conversion within 14 min. The catalytic process was endothermic and followed pseudo-first-order kinetics. The activation energy was determined to be 10.64 and 26.53 kJ mol 1 for 2-NP and 3-NP, respectively. SG-AuNPs maintained high catalytic performance after five recycles. The fabricated material was also found to be highly sensitive and selective to Pb2+ ions with the detection limit of 0.018 mM in a linear range of 0–1000 mM. The practicality of the material was validated through the analyses of Pb2+ in mimic pond water samples. The developed nanoparticles could find tremendous applications in environmental monitoring. | |
| dc.identifier.doi | 10.1039/D1RA01593A | |
| dc.identifier.uri | http://repository.vlu.edu.vn:443/handle/123456789/465 | |
| dc.language.iso | en_US | |
| dc.relation.ispartof | RSC Advances | |
| dc.relation.issn | 2046-2069 | |
| dc.title | Effective reduction of nitrophenols and colorimetric detection of Pb(<scp>ii</scp>) ions by <i>Siraitia grosvenorii</i> fruit extract capped gold nanoparticles | |
| dc.type | journal-article | |
| dspace.entity.type | Publication | |
| oaire.citation.issue | 25 | |
| oaire.citation.volume | 11 |