An indirect application aspect of zeolite modified electrodes for voltammetric determination of iodate

Nosuhi, Motahare; Nezamzadeh‐Ejhieh, Alireza

doi:10.1016/j.jelechem.2017.12.075

Cited by 71 publications

(16 citation statements)

References 31 publications

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“…An atomic absorption spectrometer (AAS) 121 PerkinElmer Analyst (Air-C 2 H 2 , λ = 213.9 nm) was used for the quantitative determination of Zn in the catalysts. For this goal, the solid catalyst was digested in HF, HClO 4 and HNO 3 and the resulted solution was introduced to the AAS instrument (Nosuhi et al 2018;Shari an et al 2016).…”

Section: Characterization Methodsmentioning

confidence: 99%

The photocatalytic rate of ZnO supported onto natural zeolite nanoparticles in the photodegradation of an aromatic amine

Iazdani

Nezamzadeh‐Ejhieh

2021

Environ Sci Pollut Res

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The ZnO supported on the ball-mill prepared clinoptilolite nanoparticles (CNPs) was prepared via an ionexchange process followed by the calcination process. The ZnO-CNP catalyst was brie y characterized by XRD, FTIR, and DRS techniques. The pHpzc value for the various ZnO-CNPs was about 7.1 that no changed with the ZnO loading. By applying the Scherrer equation on the XRD results, a nano-dimension was obtained for the catalyst. Band gap energy of the ZnO-CNP samples were estimated by applying the Kubelka-Munk equation on the DRS re ectance spectra. The supported ZnO-CNP sample was then used in the photodegradation of 2,4-dichloroaniline (DCA).The effects of the most important key operating factors on the degradation e ciency was kinetically studied by applying the Hinshelwood equation on the results. The ZnO-CNP catalyst with 2 w% ZnO showed the best photocatalytic rate in the optimal conditions of 0.75 g/L, C DCA : 15 ppm, and the initial pH: 5.8. Finally, HPLC analysis of the blank and the photodegraded DCA solutions at 180 and 300 min con rmed 74 and 87% of DCA molecules were degraded during these times.

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Section: Characterization Methodsmentioning

confidence: 99%

The photocatalytic rate of ZnO supported onto natural zeolite nanoparticles in the photodegradation of an aromatic amine

Iazdani

Nezamzadeh‐Ejhieh

2021

Environ Sci Pollut Res

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“…However, at higher concentrations of 1600 mmol L À1 , the noise of the amperometric signal increases, and the current stabilization take longer and longer until no straight line is achieved anymore. The linear calibration range, LOD, and sensitivity of the suggested sensor for IO 3 À determination are compared with those in previous literatures [80][81][82][83][84][85][86][87][88][89][90][91] ( Table 2). The results proved that (bdpy)SiW 11 Ni/P-ERGO/GCE is an excellent platform for IO 3 À detection.…”

Section: Electrocatalytic Properties Of (Bdpy)siw 11 Ni/p-ergo/ Gcementioning

confidence: 99%

Electrochemical investigation and amperometry determination iodate based on ionic liquid/polyoxotungstate/P-doped electrochemically reduced graphene oxide multi-component nanocomposite modified glassy carbon electrode

2021

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“…One of the most common reagents for chromium(VI) measurement in 1,5-diphenylcarbazide (DPC) is a chelating agent with a significant affinity and selectivity for Cr(VI) complexation [22,23]. Zeolite as a porous material provides uniformity in terms of shape and pore selectivity, which facilitates ions in accessing its framework for sensing purposes during electroanalytical studies [24,25]. The combination of ionophore and zeolite material results in several applications that have been investigated for analytical purposes [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Potentiometric sensor for chromium(VI) using a composite of diphenylcarbazide-natural zeolite-modified membrane electrodes

Heryanto¹,

Rohaeti²,

Wulansari³

et al. 2022

ScienceAsia

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The construction and performance of ion selective electrodes (ISEs) for the determination of chromium(VI) based on PVC membranes modified with 1,5-diphenylcarbazide (DPC) and natural zeolite as ionophores are reported in this study. ISE was fabricated in an optimum composition of chromium(VI)-selective membrane consisting of 29 mol% DPC, 43.6 mol% natural zeolite, 25 mol% plasticizer, and 2.2 mol% PVC. The investigation of the performance of the proposed ISE was evaluated in terms of the Nernstian response, range of concentration, limit of detection, response time, and selectivity coefficient. The proposed ISE displayed a linear potential response over a concentration range of 10 −1 -10 −6 M K 2 Cr 2 O 7 with a Nernstian response of −28.8 mV/decade. Adequate sensitivity for chromium(VI) was offered by the proposed ISE with a limit of detection of 2.14×10 −6 M and a response time of ∼250 s. The fabricated ISE has also been investigated in selectivity studies in the presence of Cu 2+ and Fe 3+ and was found to be more selective in the concentration range of 10 −1 -10 −6 M. Therefore, a novel membrane electrode using a composite of DPC and natural zeolite as an ionophore has shown a satisfactory result for the direct potentiometric measurement of chromium(VI) in the presence of Cu 2+ and Fe 3+ , which may have the potential to be used in real sample analysis.

show abstract

An indirect application aspect of zeolite modified electrodes for voltammetric determination of iodate

Cited by 71 publications

References 31 publications

The photocatalytic rate of ZnO supported onto natural zeolite nanoparticles in the photodegradation of an aromatic amine

The photocatalytic rate of ZnO supported onto natural zeolite nanoparticles in the photodegradation of an aromatic amine

Electrochemical investigation and amperometry determination iodate based on ionic liquid/polyoxotungstate/P-doped electrochemically reduced graphene oxide multi-component nanocomposite modified glassy carbon electrode

Potentiometric sensor for chromium(VI) using a composite of diphenylcarbazide-natural zeolite-modified membrane electrodes

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