آمار
| تعداد نشریات | 23 |
| تعداد شمارهها | 368 |
| تعداد مقالات | 2,890 |
| تعداد مشاهده مقاله | 2,566,228 |
| تعداد دریافت فایل اصل مقاله | 1,821,892 |
Turn-on fluorescent detection of polycyclic aromatic hydrocarbons (PAHs) based on glutathione-capped CdTe/ZnS core/shell quantum dot (QDs)–graphene oxide (GO) nanocomposite: experimental and computational studies | ||
| Advances in Nanochemistry | ||
| دوره 3، شماره 2، اسفند 2021، صفحه 63-70 اصل مقاله (1.82 M) | ||
| نوع مقاله: Original Article | ||
| شناسه دیجیتال (DOI): 10.22126/anc.2021.6722.1030 | ||
| نویسندگان | ||
| Marzieh Sadeghi* 1؛ Saba Hadidi2؛ Tahereh Shokri1 | ||
| 1Department Chemistry, Razi University, Kermanshah, Iran | ||
| 2Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran | ||
| چکیده | ||
| Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous pollutants in our environment and their importance appears from their toxicity and carcinogenicity to humans. Water can become contaminated with PAHs from different sources such as runoff in urban areas, wastewater from specific industries, and petroleum spills. Herein, an efficient turn-on fluorescence sensor, based on covalently-linked glutathione (GSH)-capped CdTe/ZnS core/shell quantum dot (QDs)–graphene oxide (GO) nanocomposite was developed for PAHs sensing. The fluorescence emission of the QDs–GO nanocomposite was increased relative to the unconjugated QDs. Various techniques including TEM, SEM, XRD, FT-IR, UV/Vis, and fluorescence spectrophotometry were employed to characterize the QDs and the QDs–GO nanocomposite. Naphthalene, as a model of PAHS, was selected for further studies as the fluorescence enhancement. A limit of detection (LOD) of 7.71 × 10-8 mol L-1 was obtained for naphthalene under optimum conditions. | ||
| کلیدواژهها | ||
| Glutathione (GSH)-capped CdTe/ZnS core/shell quantum dot؛ Graphene oxide؛ Turn-on fluorescence probe؛ Polycyclic aromatic hydrocarbons | ||
|
آمار تعداد مشاهده مقاله: 217 تعداد دریافت فایل اصل مقاله: 241 |
||