Removal of heavy metal ions from aqueous solutions by complexation with DNA and precipitation with cationic surfactant

Sakai, Hiroomi; Matsuoka, Saori; Zinchenko, Anatoly; Murata, Shizuaki

doi:10.1016/j.colsurfa.2009.04.031

Cited by 24 publications

(5 citation statements)

References 18 publications

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“…In this regard, fluorescence-based techniques are the most promising and the most widely used for the detection of Hg(II) ions, owing to their outstanding naked eye visualization capability, portability, high selectivity, sensitivity, and easy implementation. − However, although fluorescence-based analytical techniques relying on traditional chemosensors have been employed for the quantitative detection of Hg(II) ions, they have not been used to separate these ions from the aqueous medium they contaminate. Thus far, various separation techniques, such as membrane filtration, complexation and precipitation, adsorption, reverse osmosis, and ion exchange, have been exploited. − Among them, because of its low cost and high efficacy, the complexation and precipitation technique is the simplest and most promising approach to the removal of low-concentration toxic heavy metal ions. , …”

Section: Introductionmentioning

confidence: 99%

BODIPY-Derived Polymeric Chemosensor Appended with Thiosemicarbazone Units for the Simultaneous Detection and Separation of Hg(II) Ions in Pure Aqueous Media

Haldar

Lee

2019

ACS Appl. Mater. Interfaces

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Developing a simple and cheap analytical method for the selective detection and quantitative separation of toxic ions present in aqueous media is the biggest challenge faced by the chemosensing research community. Here, a 5,5difluoro-1,3,7,9-tetramethyl-10-phenyl-5H-dipyrrolo-diazaborinine-derived water-soluble polymer integrated with thiosemicarbazone units was rationally designed and synthesized for the simultaneous detection and separation of Hg(II) ions in pure aqueous solution. The water-soluble polymer scaffold poly(N,N′-dimethyl acrylamide-co-5,5-difluoro-1,3,7,9-tetramethyl-10-phenyl-5H-dipyrrolo-diazaborinine-2-carbaldehyde) was synthesized by reversible addition−fragmentation chain transfer polymerization, followed by post-polymerization modification with thiosemicarbazide, leading to the formation of the target probe, P1. The nonemitting P1 exhibited bright yellow emission upon exposure to Hg(II) ions, with a limit of detection as low as 0.37 μM. This turn-on emission behavior triggered by Hg(II) ions might originate from the suppression of isomerization around the CN bond of the thiosemicarbazone moiety caused by the formation of a coordination complex between P1 and Hg(II) ions. In addition, P1 displayed excellent selectivity toward Hg(II) ions over other metal cations. Finally, the selective removal of Hg(II) ions from an aqueous solution containing various metal ions was achieved by precipitation, which is probably caused by the fact that coordination complexes whereby Hg(II) ions acted as bridgeheads between P1 molecules had formed.

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Section: Introductionmentioning

confidence: 99%

BODIPY-Derived Polymeric Chemosensor Appended with Thiosemicarbazone Units for the Simultaneous Detection and Separation of Hg(II) Ions in Pure Aqueous Media

Haldar

Lee

2019

ACS Appl. Mater. Interfaces

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“…For example, glass-bead-immobilized DNA has been reported to be effective for the removal of dioxin and polychlorinated biphenyl derivatives [4][5][6][7]. Other studies have demonstrated the DNAassisted removal of heavy metal ions by precipitation of DNA complexes [8,9], removal of toxic aromatic organic compounds from wastewater through ultra-filtration and adsorption [10,11] as well as from contaminated soil through washing with DNA solutions [12].…”

Section: Introductionmentioning

confidence: 97%

Uptake of aromatic compounds by DNA: Toward the environmental application of DNA for cleaning water

Fernández-Solis

Kuroda

Zinchenko

et al. 2015

Colloids and Surfaces B: Biointerfaces

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“…Their presence in natural systems causes harmful effects to the living organisms (Xuejiang et al 2006). Owing to the acute toxicity associated with them, different techniques including precipitation (Sakai et al 2009), ion exchange (Dizgea et al 2009), solvent extraction (Li et al 2008), electrochemical precipitation (Janin et al 2009), and adsorption (Aguado et al 2009) have been used for their removal. Among all these methods, adsorption has been proved to be the most promising technique.…”

Section: Introductionmentioning

confidence: 99%

Co-Ion Effect on Cr3+ Sorption by Amberlyst-15(H+)

Mustafa

Shah

Akhtar

et al. 2010

Water Air Soil Pollut

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Cr 3+ sorption on strong acid exchanger Amberlyst-15(H + ) is studied as a function of time and temperature using CrCl 3 .6H 2 O and [Cr 4 (SO 4 ) 5 (OH) 2 ] solutions. The rate is found to be governed by a mixed diffusion for both the solutions and faster for Cl 1− solution than SO 4 2− . The exchange capacities are found to be higher for Cl 1− system than SO 4 2− . From the rate constant values, the energies of activation are calculated using the well-known Arrhenius equation. Equilibrium data is explained with the help of the Langmuir equation. The Langmuir parameters are also found to be higher for exchange from the chloride solutions. Various thermodynamic parameters (ΔH o , ΔS o , and ΔG o ) for Cr 3+ exchange on the resin are calculated. The ΔG o values are found to be negative while ΔH o and ΔS o are positive for both the Cr 3+ /Cl 1− and Cr 3+ /SO 4 2− systems. It is suggested that in case of Cl 1− solutions, the metal is exchanged as Cr 3+ , while in case of SO 4 2− solutions, the metal exchanging specie is CrSO 4 + .

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Removal of heavy metal ions from aqueous solutions by complexation with DNA and precipitation with cationic surfactant

Cited by 24 publications

References 18 publications

BODIPY-Derived Polymeric Chemosensor Appended with Thiosemicarbazone Units for the Simultaneous Detection and Separation of Hg(II) Ions in Pure Aqueous Media

BODIPY-Derived Polymeric Chemosensor Appended with Thiosemicarbazone Units for the Simultaneous Detection and Separation of Hg(II) Ions in Pure Aqueous Media

Uptake of aromatic compounds by DNA: Toward the environmental application of DNA for cleaning water

Co-Ion Effect on Cr3+ Sorption by Amberlyst-15(H+)

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