تسجيل الدخول
Efficient dual sensor of alternate nanomaterials for sensitive and rapid monitoring of ultra-trace phenols in sea water
تاريخ النشر
15/10/2019 12:00:00 ص
102
المؤلفون
Rasha M. Kamel, Ahmed Shahat, Zeinab M. Anwar, Hamdy A. El-Kady, Esraa M. Kilany
الوصف
Composite using mesoporous silica and organic ligand was employed for efficient dual detection of toxic phenols from waste samples. The organic ligand of 4-amino antipyrine (4-AAP) was successfully conjugated onto the mesoporous nanosphere and then captured the phenols under suitable conditions. 4-AAP sensor provides sensitive, fast, cheap, and dual determination of phenolic compounds through spectrofluorometric and visual detection.The sensitive naked-eye detection of phenolic compounds using 4-AAP proceeds within a few minutes. The low limit of detection aswell as the quantification limit was recorded by both methods fluorimetric and colorimetric methods. 4-AAP sensor was applied for the determination of phenol in water samples collected from Suez Bay. Validation of the new method was achieved through comparison the obtained results with other established method using gas chromatography. The data emphasized that the proposed sensor is high suitable for phenols capturing from contaminated water according to its selectivity, sensitivity, cost-effective, and ecofriendly approach
URL
journal homepage: www.elsevier.com/locate/molliq
DOI
https://doi.org/10.1016/j.molliq.2019.111798
الملخص
Themesoporous nanosphere materials by ligand anchoring onto the porous silica materials were fabricated for sensitive and selective monitoring of phenol compounds (phenol, o-cresol, m-cresol, resorcinol, pyrocatechol, and quinol) from seawater. The experimental parameters were systematically performed both in the visual and fluorescence recognition. The optimized pH was 8.0 both in the two procedures. The limits of detection and quantification were calculated based on the colorimetric and fluorimetric methods. Thus the promising experimental data can be encouraging to the scientific community for real potential application of the novel nanosphere materials for phenols in largescale operations.
الكلمات الدالة
Phenols Fluorescence Optical sensor Composite