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首页> 外文期刊>RSC Advances >A single hybrid optical sensor based on nanoporous silica type SBA-15 for detection of Pb2+ and I- in aqueous media
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A single hybrid optical sensor based on nanoporous silica type SBA-15 for detection of Pb2+ and I- in aqueous media

机译：基于纳米多孔二氧化硅SBA-15的单一混合光学传感器，用于检测水性介质中的Pb2 +和I-

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摘要

A novel organic-inorganic hybrid optical sensor (HQS-SBA-15) was prepared by a two-step post synthesis of SBA-15: functionalization with 3-(iodopropyl)-trimethoxysilane followed by the covalent attachment of 8-hydroxyquinoline-5-sulfonic acid. XRD, N-2 adsorption-desorption, TEM and FT-IR were used for the characterization of the prepared materials. A fluorescence study showed that the suspension of HQS-SBA-15 in water was able to detect selectively and sensitively two ions with opposite charges, i.e. Pb2+ in the presence of different cations, including Na+, Mg2+, Al3+, K+, Ca2+, Mn2+, Co2+, Cu2+, Zn2+, Cd2+ and Hg+, as well as I- among different anions, including NO2-, NO3-, CN-, Cl-, F-, Br-, CO32-, SO42-, HCO3-, and H2PO4-. The effects of pH, its applicability in real samples and reversibility are also discussed.
机译：通过两步后合成SBA-15：用3-（碘丙基）-三甲氧基硅烷官能化，然后共价连接8-羟基喹啉-5-，制备了一种新型的有机-无机混合光学传感器（HQS-SBA-15）。磺酸。用XRD，N-2吸附-脱附，TEM和FT-IR表征了制备的材料。荧光研究表明，HQS-SBA-15在水中的悬浮液能够选择性和灵敏地检测带有相反电荷的两个离子，即在存在不同阳离子（包括Na +，Mg2 +，Al3 +，K +，Ca2 +，Mn2 +，包括NO2-，NO3-，CN-，Cl-，F-，Br-，CO32-，SO42-，HCO3-和H2PO4-等不同阴离子中的Co2 +，Cu2 +，Zn2 +，Cd2 +和Hg +以及I- 。还讨论了pH的影响，其在实际样品中的适用性和可逆性。

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