Rapid Determination of Uranium in Water Samples by Adsorptive Cathodic Stripping Voltammetry Using a Tin-Bismuth Alloy Electrode

Zhang, Li; Wang, Cong Zhi; Tang, Hong; Wang, Lin; Liu, Yang Sheng; Zhao, Yu; Chai, Zhifang

doi:10.1016/j.electacta.2015.06.087

Cited by 31 publications

(12 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…for Ga 112 [57], Te [58] or Fe [59]), a large amount of research is now devoted to greener and more 113 user-friendly solid and/or film electrodes. Latest development for analysis of water 114 samples include methods for Ni [60], Ag [61], Co [62], Mn [63], V [64;65], U [66], 115…”

Section: List Of Nomenclature and Abbreviationsmentioning

confidence: 99%

A review on electrochemical methods for trace metal speciation in environmental media

Companys

Galceran

Pinheiro

et al. 2017

Current Opinion in Electrochemistry

View full text Add to dashboard Cite

11Trace metal speciation is key to understand/predict bioavailability and potential toxicity 12 of metals to biota and will, undoubtedly, be incorporated in future regulations. 13Electroanalytical methods have a role to play in such development: they offer a wide 14 range of advantages such as speed, portability, economy, solid interpretation 15 backgrounds and low limits of quantification. This review focusses on three selected 16 stripping techniques: Competitive-Ligand Exchange -Cathodic Stripping Voltammetry 17 (CLE-CSV), Scanned Stripping Chrono-Potentiometry (SSCP) and AGNES (Absence 18 of Gradients and Nernstian Equilibrium Stripping) reporting their working principles, 19 characteristics (strong and weak points) and recent applications to systems of 20 environmental relevance (such as seawaters, freshwaters or soil extracts). 21 22 23 24 Keywords: speciation, availability, electroanalysis, electrochemistry, heavy metal, 25 CLE-CSV, SSCP, AGNES 26 27 published in Current Opinion 3 (2017) 144-162 33 Speciation (i.e. the distribution of an element among its different chemical forms[1]) 34 has been recognised as a key factor for trace metal (bio)availability to biota, as 35 postulated by hegemonic ecotoxicological paradigms such as the Free Ion Activity 36 Model (FIAM) [2] or the Biotic Ligand Model (BLM)[3], both assuming that the free 37 ion is the only bioavailable species. The limits of these models have recently been 38 reviewed [4], highlighting numerous cases where specific fractions of metal complexes 39 can be internalized, either directly or through the dissociation of labile complexes. Thus, 40there is a need to design, develop, apply and interpret analytical techniques able to 41 provide reliable speciation information [5][6][7] that can be used by regulatory bodies. 42Although there are numerous non-electrochemical techniques [5][6][7][8][9][10][11][12][13], those that are 43 provide attractive possibilities such as speed of analysis, low-cost and miniaturization in 44 view to on-site (and in-situ) measurements [14], and can also provide thermodynamic 45 (i.e. equilibrium) information (such as the amount of the free metal, the amount of 46 complexing sites, the stoichiometry of complexes and their stability constants [15]) as 47 [16;17]. Stripping techniques, due to their low detection limits, are well suited for 50 environmental analysis. They are two-stage techniques, where the first stage is a 51 deposition step that accumulates the analyte (at the electrode surface or in its volume), 52 followed by a second stage that quantifies this analyte. Anodic Stripping Voltammetry 53 (ASV), in its multiple variants, is the most popular and has the advantage to possibly be 54 measuring a potentially bioavailable fraction of the metal, as shown again recently 55 [18;19]. 56 57 published in Current Opinion 3 (2017) 144-162 This critical evaluation focusses on three techniques that are known powerful tools for 58 metal speciation: AGNES (Absence of Gradients and Nernstian Equilibrium Stripping) 59 and SSCP...

show abstract

Section: List Of Nomenclature and Abbreviationsmentioning

confidence: 99%

A review on electrochemical methods for trace metal speciation in environmental media

Companys

Galceran

Pinheiro

et al. 2017

Current Opinion in Electrochemistry

View full text Add to dashboard Cite

show abstract

“…Bimetallic nanostructured materials, alloy, or core shell nanoparticles have been used as sensing materials for the electrochemical analysis of trace metal ions because of their novel catalytic, magnetic, and optical properties, which could offer significant additional advantages over those of their constituent single metallic materials . By adopting the appropriate functional monomers, cross‐linking agents, and template ions, the method can potentially be used to fabricate a highly selective, sensitive, and low‐cost probe based on imprinted techniques for heavy metal ion detection in water as well as biological samples, due to its robust feature displaying both high surface area and a 3D structure made of highly open spaces interconnected to each other .…”

Section: Electrode Materials For Heavy Metal Sensingmentioning

confidence: 99%

Recent Advances and Perspective on Design and Synthesis of Electrode Materials for Electrochemical Sensing of Heavy Metals

Hou

Zeinu

Gao

et al. 2018

Energy & Environ Materials

View full text Add to dashboard Cite

The increase in release of toxic heavy metals into natural water attracts much attention due to its devastating effect on ecology and human health. The design and implementation of green electrode materials is pivotal for improving the electrochemical performance of in situ heavy metal monitoring. This work reviews various novel electrode materials and hybrid materials that improve electrochemical detection. Modified green and novel electrode materials offer better performance due to their improved deposition with wide linear and enhanced response under optimized sensing parameters. In particular, recent works related to gold, carbon materials, bismuth, and metal oxide‐based electrodes are reviewed. The environmentally friendly (“green”) characteristics, as well as their versatility and flexibility, are especially emphasized. In addition, synthesis methods and novel designs of electrode integration are highlighted. Most of the substantial achievements as well as breakthroughs in recent years are surveyed, and the challenges and prospective in this field are also identified.

show abstract

“…圈与人类健康造成的危害主要源自于 U(VI)在环境中的扩散, 这是由于 U(VI)相比于其他铀的低氧化种态水溶性和迁移能力显著增强。近年来随着我国核能和平利用的不断发展, 产生的大量含 U(VI)放射性废水 [4] 进一步增加了铀在水体中扩散风险。而过多的铀进入人体会使肾脏结构受损, 可能导致急性肾功能衰竭, 此外还会增加患骨癌、肝癌和血液病的风险 [5][6][7] 。因此, 监测水系统中的痕量铀是非常必要, 对公众安全具有重要意义。传统的铀含量检测方法主要有：激光诱导荧光法(LIF) [8] 、X 射线荧光光谱法(XRF) [9] 、电感耦合等离子体质谱法(ICP-MS) [10] 、原子光谱法(ETAAS) [11] 、激光拉曼光谱法 [12] 以及电感耦合等离子体光发射光谱(ICP-OES) [5] 。这些方法往往需要昂贵的仪器和复杂的操作, 不利于在小型实验室和现场中检测铀酰。电化学检测具有便携性好、灵敏度高、检测仪器简单和维护成本低等优点 [13] , 为在现场环境构建原位监测铀酰离子的便携式设备提供了可能性。二维材料因其优异的电、热、力学和光学性能而受到广泛关注 [14][15] 。2011 年, Naguib 等 [16] 使用氢氟酸刻蚀法首次合成了一类新型二维过渡金属碳化物, 因其具有类似于石墨烯的层状结构而被称作 MXene。MXene 材料具有良好的导电性、亲水性和高比表面积 [16][17][18] , 被广泛用于锂离子电池 [19] 、超级电容器 [20][21] 等能源领域的应用研究。近期已有报道将 MXene 用于重金属离子和 H 2 O 2 等的电化学检测 [22][23] 。同时, 由于 MXene 材料具有良好的耐辐照性和热稳定性, 在放射性核素的吸附去除领域展现了卓越的性能 [3,24] [16] [26] 。使用硝酸钠代替硝酸铀酰进行空白实验, 在循环伏安扫描范围内未检出氧化还原峰, 表明阴离子对于铀酰离子的检测无显著影响。Ti 3 C 2 T x /GCE 修饰电极由于多层 Ti 3 C 2 T x 的电容效应 [20] , 遮盖了电极对 UO 2…”

unclassified

Alkalization Intercalation of MXene for Electrochemical Detection of Uranyl Ion

Mao¹,

Wang²,

Cheng-Xin³

et al. 2019

Journal of Inorganic Materials

View full text Add to dashboard Cite

Given the good electrochemical performance and excellent irradiation stability of two dimensional transition metal carbides (MXenes), the development of MXene-based electrode materials for radionuclide detection is very promising. In this work, Ti 3 C 2 T x MXene was activated via an alkalization strategy to form K + intercalated Ti 3 C 2 T x (K-Ti 3 C 2 T x). Then the modified electrode of K-Ti 3 C 2 T x /GCE was prepared on glassy carbon electrode (GCE). Ti 3 C 2 T x and K-Ti 3 C 2 T x were characterized by XRD, SEM and XPS techniques, and the electrochemical detection performance of K-Ti 3 C 2 T x /GCE for trace uranyl ion (UO 2 2+) was further investigated. Cyclic voltammetry (CV) experiments showed that the electrochemical response of K-Ti 3 C 2 T x /GCE modified electrode to UO 2 2+ increased significantly. Under the differential pulse voltammetry (DPV) scanning at pH 4.0, the K-Ti 3 C 2 T x /GCE modified electrode presented a good linear detection relationship for UO 2 2+ in the uranium concentration range of 0.5-10mg/L. The detection limit of this method is 0.083 mg/L (S/N = 3), with decent stability and repeatability.

show abstract

Rapid Determination of Uranium in Water Samples by Adsorptive Cathodic Stripping Voltammetry Using a Tin-Bismuth Alloy Electrode

Cited by 31 publications

References 58 publications

A review on electrochemical methods for trace metal speciation in environmental media

A review on electrochemical methods for trace metal speciation in environmental media

Recent Advances and Perspective on Design and Synthesis of Electrode Materials for Electrochemical Sensing of Heavy Metals

Alkalization Intercalation of MXene for Electrochemical Detection of Uranyl Ion

Contact Info

Product

Resources

About