title: Silver nanoparticle based highly selective and sensitive solvatochromatic sensor for colorimetric detection of 1,4-dioxane in aqueous media.
abstract: A citrate stabilised silver nanoparticle (Ci-AgNP) based solvatochromic sensor, which functions as a highly selective and sensitive colorimetric probe for 1,4-dioxane in aqueous media is reported. The surfaces of the AgNPs generate reactive oxygen species, which promote the degradation of 1,4-dioxane assembled in the vicinity of the nanoparticle surfaces through charge transfer interactions. During this process, Ag(0) is oxidised to Ag(+) and the yellow colour of the solution turns to colourless. The sensor was used for the estimation of 1,4-dioxane in ground water and also 1,4-dioxane vapour diffused in aqueous media.
authors.affiliation: Analytical Discipline and Centralized Instrument Facility, CSIR-Central Salt & Marine Chemicals Research Institute, Bhavnagar, 364002, India. ppaul@csmcri.org.
authors.forename: Anshu
authors.initials: A
authors.lastname: Kumar
authors.forename: Gaurav
authors.initials: G
authors.lastname: Vyas
authors.forename: Madhuri
authors.initials: M
authors.lastname: Bhatt
authors.forename: Shreya
authors.initials: S
authors.lastname: Bhatt
authors.forename: Parimal
authors.initials: P
authors.lastname: Paul