Photoinduced triplet-state electron transfer of platinum porphyrin: a one-step direct method for sensing iodide with an unprecedented detection limit. Issue 13 (18th February 2015)

• Record Type: Journal Article
• Authors: Masih, Dilshad; Aly, Shawkat M.; Alarousu, Erkki; Mohammed, Omar F.
• Is Part Of: Journal of materials chemistry. Volume 3:Issue 13(2015)
• Page Start: 6733
• Page End: 6738
• Publication Date: 2015-02-18
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c4ta07033j
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : Herein, we report for the first time the photoinduced triplet-state electron transfer of Pt(ii )TMPyP as an easy, rapid, environmentally friendly, ultra-sensitive and economical method for the determination of iodide in the aqueous phase. Abstract : Here, we report for the first time a one-step direct method for sensing halides in aqueous solution using phosphorescence quenching of platinum-cationic porphyrin. This method offers an easy, rapid, environmentally friendly, ultra-sensitive (with a previously unattained detection limit of 1 × 10 −12 M) and economical method for the determination of iodide. To fully understand the reaction mechanism responsible for the phosphorescence quenching process, we have employed cutting-edge time-resolved laser spectroscopy with broadband capabilities.