Visual and Optical Sensing of Hg2+, Cd2+, Cu2+, and Pb2+ in Water and Its Beneficiation via Gettering in Nanoamalgam Form

Abdul Malek, Tiju Thomas, Edamana Prasad

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

A "turn on" fluorescent probe based on denatured bovine serum albumin (BSA)-Pyronin Y complex (PYdBSA) has been prepared using a one pot approach. This probe can detect nanomolar concentrations of common contaminant ions (Hg2+, Cd2+, Cu2+, and Pb2+) found in wastewater. The probe shows the highest fluorescence response for Hg2+ (relative intensity set to 100%) and a very good response for Cd2+ (60%), Cu2+ (50%), and Pb2+ (20%). The probe is water-soluble and has photo excitation in the visible region (530 nm). More interestingly, the presence of the contaminant ions under consideration can be visually detected due to the distinct color formation upon addition of the analytes in micromolar (1 μM) concentrations. The limit of detection (LOD) with fluorometry is 9 nM for Hg2+ (
Original languageEnglish (US)
Pages (from-to)3497-3503
Number of pages7
JournalACS Sustainable Chemistry and Engineering
Volume4
Issue number6
DOIs
StatePublished - Jun 6 2016
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2023-10-23

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Environmental Chemistry
  • General Chemical Engineering
  • General Chemistry

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