Simple colorimetric assay for dehalogenation reactivity of nanoscale zero-valent iron using 4-chlorophenol

Hwang, Yuhoon; Mines, Paul D.; Andersen, Henrik Rasmus

doi:10.1016/j.apcatb.2014.10.059

Cited by 32 publications

(22 citation statements)

References 30 publications

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“…2,4-dichlorophenol (2,, one of the representative chlorophenols, is used in the production of herbicides (2,4-dichlorophenoxyacetate etc.) and preservatives (pentachlorophenol etc.…”

Section: Insight Into the Adsorption-dechlorination-desorptionmentioning

confidence: 99%

Preparation of functionalized Pd/Fe-Fe3O4@MWCNTs nanomaterials for aqueous 2,4-dichlorophenol removal: Interactions, influence factors, and kinetics

Cao

Xue

et al. 2016

Journal of Hazardous Materials

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“…2,4-dichlorophenol (2,, one of the representative chlorophenols, is used in the production of herbicides (2,4-dichlorophenoxyacetate etc.) and preservatives (pentachlorophenol etc.…”

Section: Insight Into the Adsorption-dechlorination-desorptionmentioning

confidence: 99%

Preparation of functionalized Pd/Fe-Fe3O4@MWCNTs nanomaterials for aqueous 2,4-dichlorophenol removal: Interactions, influence factors, and kinetics

Cao

Xue

et al. 2016

Journal of Hazardous Materials

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“…In this light, in our previous work [22] we developed a simple assay to characterize the reductive reactivity of nZVI using 4-chlorophenol as the substrate; then, quantifying the reduction product, phenol, using a slightly modified version of the well-known indophenol ( Fig. 1) colorimetric reaction [23].…”

Section: Introductionmentioning

confidence: 99%

Estimating dehalogenation reactivity of nanoscale zero-valent iron by simple colorimetric assay by way of 4-chlorophenol reduction

Mines

Kaarsholm

Droumpali

et al. 2019

Environmental Engineering Research

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A number of different nanoscale zero-valent iron (nZVI) materials have been prepared and compared depending on the desired properties for the particular application, but different physicochemical properties of this prepared nZVI make it difficult to universally compare and standardize them to the same scale. In this study, we aimed to demonstrate a simple microplate-based colorimetric assay using 4-chlorophenol as an indicator with respect to the remediation of real treatment targets, such as trichloroethylene (TCE), 1,1,1-trichloroethane (TCA), and atrazine. Effect of nickel contents on 4-chlorophenol reduction was successfully investigated by the miniaturized colorimetric assay. In the same manner, the effect of nickel contents on dehalogenation of TCE, TCA, and atrazine was investigated and the pseudo-first-order kinetic constants were compared with the results for 4-chlorophenol. The similar pattern could be observed between 4-chlorophenol reduction obtained by colorimetric assay and TCE, TCA, atrazine reduction obtained by a traditional chromatographic method. The reaction kinetics does not match perfectly, but the degree of reaction can be estimated. Therefore, the colorimetric assay can be a useful and simple screening tool to determine nZVI reactivity toward halogenated organics before it is applied to a particular remediation site.

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“…buffer used or soluble metals. When the soluble iron concentration in a sample is higher than 100 mg/L, sample pretreatment using sodium carbonate solution is considered, as described in previous research [17]. Therefore, the number of wells required for one analysis will be twelve, which fits with a number of wells in a row in the microplate.…”

Section: Suggested Reactivity Assay Procedures and Its Implementationmentioning

confidence: 99%

“…In our previous study, phenol detection by the indophenol reaction was successfully developed by simple substitution of phenol as the limiting substrate in the entire reaction [17]. In this color assay, phenol acted as the limiting reagent, and excess amounts of ammonium and hypochlorite were applied, in order to have the color development dependent on the concentration of phenol in samples.…”

Section: Phenol Analysis As a Product Of Halogenated Phenol Reductionmentioning

confidence: 99%

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Graduated characterization method using a multi-well microplate for reducing reactivity of nanoscale zero valent iron materials

Hwang

Salatas

Mines

et al. 2016

Applied Catalysis B: Environmental

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Simple colorimetric assay for dehalogenation reactivity of nanoscale zero-valent iron using 4-chlorophenol

Cited by 32 publications

References 30 publications

Preparation of functionalized Pd/Fe-Fe3O4@MWCNTs nanomaterials for aqueous 2,4-dichlorophenol removal: Interactions, influence factors, and kinetics

Preparation of functionalized Pd/Fe-Fe3O4@MWCNTs nanomaterials for aqueous 2,4-dichlorophenol removal: Interactions, influence factors, and kinetics

Estimating dehalogenation reactivity of nanoscale zero-valent iron by simple colorimetric assay by way of 4-chlorophenol reduction

Graduated characterization method using a multi-well microplate for reducing reactivity of nanoscale zero valent iron materials

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