Abstract
The as-preared Ca metal organic framework (CaMOF) nanosol exhibits a strong resonance Rayleigh scattering (RRS) peak at 380 nm under the chosen conditions. The S2− reacts with p-aminodimethylaniline (DMPD) to produce methylene blue (MB) in the presence of Fe(III). The produced MB acts as a RRS receptor and CaMOF as RRS donor, the both taken place RRS-energy transfer (RRS-ET) when MB was adsorbed on the CaMOF surface to result in the RRS signal quenching. As the concentration of Na2S increasing, the MB formed increased and the RRS-ET enhanced, leading to a linear decreasing in the RRS intensity at 380 nm. The decreased value ΔI shows a good linear relationship with the concentration of Na2S in the range of 0.050–5.0 μmol/L. Accordingly, a new RRS-ET method was established to determine sulfate in water and H2S in air samples, with high sensitivity, good selectivity and simplicity.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
