Architecture of a functionalized SBA-15 (SBA-Pr-N-BFE) chemosensor for the detection of Fe3+ ions in aqueous media

• Published in: Inorganic chemistry communications 2023-04, Vol.150, p.110483, Article 110483
• Main Authors: Mohammadi Ziarani, Ghodsi, Tahmasebi Ashtiani, Shadi, Mohajer, Fatemeh, Badiei, Alireza, Varma, Rajender
• Format: Article
• Language: English
• Subjects: 1,2-bis(2-formylphenoxy)ethane (BFE); Fe3+ ions; Fluorescent Sensor; Functionalized SBA-15; SBA-Pr-N-BFE
• ISSN: 1387-7003; 1879-0259
• DOI: 10.1016/j.inoche.2023.110483

[Display omitted] •SBA-Pr-N-BFE was synthesized by functionalization of SBA-Pr-NH2, (3- aminopropyl)trimethoxy silane, and 1,2-Bis(2-formylphenoxy)ethane (BFE).•Photoluminescence (PL) spectroscopy of SBA-Pr-N-BFE detect selectively the Fe3+ ions in H2O.•SBA-Pr-N-BFE detects Fe3+ ions with a significant detection limit of 1.209 × 10-6 M. SBA-Pr-N-BFE was designed as a chemosensor starting from mesoporous silica SBA-15, (3-aminopropyl)trimethoxy silane, and 1,2-bis(2-formylphenoxy)ethane (BFE), characterized by various techniques and applied as a selective fluorescent chemosensor. Photoluminescence (PL) spectroscopy has been employed to examine the sensing prowess of the functionalized SBA-Pr-N-BFE, which could selectively detect the Fe3+ ions in H2O over various metal ions; notable quenching in the fluorescence intensity was discerned after adding Fe3+ ions in H2O. Furthermore, the fluorescence studies established the linear correlation of fluorescence intensity of SBA-Pr-N-BFE and the concentration of Fe3+ ions with a detection limit of 1.209 × 10-6 M.