SBA-15 Functionalized with Naphthalene Derivative for Selective Optical Sensing of Cr2O72− in Water

A novel organic-inorganic hybrid optical sensor (NUS) was designed and prepared in two steps: the grafting of 3-(isocyanatopropyl)trimethoxysilane onto the surface of SBA-15, and then the attachment of naphthalene-1-amine. The obtained materials were characterized using low-angle XRD, N2 adsorption-...

Full description

Saved in:
Bibliographic Details
Published in:Analytical Sciences 2016/05/10, Vol.32(5), pp.511-516
Main Authors: KARIMI, Mehdi, BADIEI, Alireza, ZIARANI, Ghodsi MOHAMMADI
Format: Article
Language:English
Subjects:
Analytical Chemistry
Anions
Attachment
Chemistry
Cr2O72
Derivatives
Fluorescence
Mathematical analysis
Naphthalene
Optical sensors
optical sesnor
Ordered mesoporous silica
SBA-15
Surface chemistry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A novel organic-inorganic hybrid optical sensor (NUS) was designed and prepared in two steps: the grafting of 3-(isocyanatopropyl)trimethoxysilane onto the surface of SBA-15, and then the attachment of naphthalene-1-amine. The obtained materials were characterized using low-angle XRD, N2 adsorption-desorption, TGA, FT-IR, and TEM techniques. A fluorescence study revealed that the NUS was a highly selective optical sensor for the detection of Cr2O72− among various anions, including F−, I−, Cl−, Br−, CO32−, HCO3−, NO3−, H2PO4−, CH3COO−, and NO2− with a good linearity between the fluorescence intensity and the concentration of Cr2O72− as well as a detection limit of 1.2 × 10−7 M in a 100% aqueous medium. Moreover, the applicability of real samples of the sensor is also discussed.
ISSN:0910-6340
1348-2246
DOI:10.2116/analsci.32.511