Selective Removal of Copper(II) from Natural Waters by Nanoporous Sorbents Functionalized with Chelating Diamines

Chouyyok, Wilaiwan; Shin, Yongsoon; Davidson, Joseph D.; Samuels, William D.; LaFemina, Nikki H.; Rutledge, Ryan D.; Fryxell, Glen E.; Sangvanich, Thanapon; Yantasee, Wassana

doi:10.1021/es101165c

Cited by 104 publications

(51 citation statements)

References 29 publications

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“…Other nitric acid concentrations, higher or lower, would lead to a lower desorption efficiency. As is often reported in the literature, desorption efficiency showed a monotonic increase with the increase of the desorption agent concentration (Chouyyok et al, 2011;Hammaini et al, 2007;Liu and Bai, 2006). This Figure 1.…”

Section: Cu Ion Desorption With Different Nitric Acid (Hno 3 ) Concensupporting

confidence: 80%

Desorption of copper ions from the polyamine-functionalized adsorbents: Behaviors and mechanisms

Liu

Liang

Liu

et al. 2016

Adsorption Science & Technology

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This paper is aiming at analyzing the desorption performance of the four polyamine-functionalized adsorbents after copper ion adsorption, with nitric acid as the desorption agent. The four adsorbents (namely, P-EDA, P-DETA, P-TETA and P-TEPA) studied were immobilized with ethylenediamine (EDA), diethylenetriamine (DETA), triethylenetetramine (TETA) and tetraethylenepentamine (TEPA), respectively. Nitric acid concentration, ionic strength, and solid-to-liquid (S/L) ratio were taken into consideration as the influencing factors on the desorption performance. The findings showed that higher desorption efficiency had no necessary connection with the higher concentration of nitric acid, and the highest desorption efficiency was realized for P-EDA and P-DETA at 0.10 mmol/L, and for P-TETA and P-TEPA at 0.25 mmol/L, in the nitric acid concentration range of 0.01-2.00 mmol/L studied. In addition, Ionic strength showed obvious influence on the desorption efficiency, and higher ionic strength resulted in significant lower desorption efficiency. Different S/L ratios studied showed almost no differences on the desorption efficiency. The copper ion desorption kinetics, best described by the Elovich model, was discovered to be very fast that more than 85% of the desorption efficiency was attained within 2 min. A slight decrease in Cu ion adsorption capacity was found through ten cycles of adsorption-desorption-regeneration for all the four adsorbents.

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Section: Cu Ion Desorption With Different Nitric Acid (Hno 3 ) Concensupporting

confidence: 80%

Desorption of copper ions from the polyamine-functionalized adsorbents: Behaviors and mechanisms

Liu

Liang

Liu

et al. 2016

Adsorption Science & Technology

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“…As the third-most abundant transition metal in human body and many living organisms, copper plays vital roles [4][5]. However, excess copper in the neuronal cytoplasm can lead many diseases, such as Parkinson"s disease, Alzheimer"s disease and Wilson disease [6][7]. Therefore, the detection of copper ion content in the physiological environment is very important.…”

Section: Introductionmentioning

confidence: 99%

Highly sensitive and fast responsive ratiometric fluorescent probe for Cu2+ based on a naphthalimide-rhodamine dyad and its application in living cell imaging

Tang

Zhang

et al. 2016

Sensors and Actuators B: Chemical

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Highly sensitive and fast responsive ratiometric fluorescent probe for Cu2+ based on a naphthalimide-rhodamine dyad and its application in living cell imaging, Sensors and Actuators B: Chemical http://dx.Highlights 1. The detection limit of a new FRET probe for Cu 2+ was 18.6 nM. 2. The probe exhibited high selectivity and sensitivity detection of in aqueous solution with a wide pH span (4.0-10.0). 3. The significant changes in color could be used for naked-eye detection 4. The response time to Cu 2+ is less than 1 min. 5. The fluorescence imaging experiment demonstrated its value of practical application. Abstract:Based on fluorescent resonance energy transfer (FRET), we developed a ratiometric fluorescent probe 1 for sensing Cu 2+ . As expected, probe 1 exhibited high selectivity and excellent sensitivity in both absorbance and fluorescence detection of Cu 2+ in aqueous solution. A significant color change from pale yellow to pink could be observed, enabling naked-eye detection of Cu 2+ . Furthermore, fluorescence imaging experiment of Cu 2+ in living MGC-803 cells demonstrated its value of practical applications in biological systems.

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“…Choyyck et al 364 evaluated three nanoporous sorbents containing chelating diamine functionalities for Cu 2+ adsorption from natural water: ethylenediamine functionalized self-assembled monolayers on mesoprous supports (EDA-SAMMS), ethylenediamine functionalized activated carbon (AC-CH 2 -EDA), and 1,10-phenanthroline functionalized mesoporous carbon (phen-FMC). The pH dependence of Cu 2+ sorption, Cu 2+ sorption capacities, rates, and selectivity of the sorbents were determined and compared with those of commercial sorbents (Chelex-100 ion-exchange resin and Darco KB-B activated carbon).…”

Section: Miscellaneous Techniquesmentioning

confidence: 99%

Metals in River Water

Crompton

2015

Determination of Metals in Natural Waters, Sediments and Soils

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Selective Removal of Copper(II) from Natural Waters by Nanoporous Sorbents Functionalized with Chelating Diamines

Cited by 104 publications

References 29 publications

Desorption of copper ions from the polyamine-functionalized adsorbents: Behaviors and mechanisms

Desorption of copper ions from the polyamine-functionalized adsorbents: Behaviors and mechanisms

Highly sensitive and fast responsive ratiometric fluorescent probe for Cu2+ based on a naphthalimide-rhodamine dyad and its application in living cell imaging

Metals in River Water

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