4-氨基嘧啶在R-AgLAFE/氯酸盐界面上的吸附比较不同水活度及不同表面活性剂的吸附性能

IF 1.3 4区工程技术 Q4 CHEMISTRY, PHYSICAL

Physicochemical Problems of Mineral Processing Pub Date : 2023-08-01 DOI:10.37190/ppmp/170204

M. Martyna, Alicja Pawlak, M. Grochowski, A. Bazan-Woźniak, R. Pietrzak, A. Nosal-Wiercińska

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引用次数: 0

摘要

4-氨基嘧啶（4-APM）对不同水活度溶液中R-AgLAFE/氯酸盐（VII）界面双层参数的影响研究以及电极/溶液界面上4-氨基嘧啶-1-癸磺酸钠（SDS）和4-氨基嘧啶十六烷基三甲基溴化铵（CTAB）混合吸附层的不同性质进行了讨论。使用电化学阻抗谱测量了R-AgLAFE/碱性溶液界面处的双层（Cd）的微分容量。使用流动电极测定零电荷电势（Ez），同时使用汞滴内部的最大压力法测量零电荷电势下的表面张力（Yz）。结果表明，4-氨基吡里脒的浓度和水活性对R-AgLAFE/氯酸盐（VII）界面上的双层参数都有重要影响。在所研究的4-APM-SDS和4-APM-CTAB体系中，观察到4-氨基嘧啶的优势。

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Adsorption of 4-aminopyrimidine at the R-AgLAFE/chlorate(VII) interface. Comparison of the adsorption properties of various water activity as well as different surfactants

The results of 4-aminopyrimidine (4-APM) impact studies on the double layer parameters at the R-AgLAFE/ chlorates(VII) interface in the solutions with different water activity as well as different properties of the mixed adsorption layer of 4-aminopirimidine – sodium 1-decanesulfonate (SDS) and 4- aminopyrimidine - hexadecyltrimethylammonium bromide (CTAB) at the electrode/solution interface are discussed.The differential capacity of the double layer (Cd) at the R-AgLAFE/ basic solution interface was measured using the electrochemical impedance spectroscopy. The zero charge potential (Ez) was determined using a streaming electrode, while the surface tension at the zero charge potential (Yz) was measured using the largest pressure method inside the mercury drop. It was proved that both the 4-aminopirymidine concentration and water activity have an essential effect on the doublelayer parameters on the R-AgLAFE/ chlorates(VII) interface. In the studied systems: 4-APM - SDS and 4-APM - CTAB, 4-aminopyrimidine dominance was observed.

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来源期刊

Physicochemical Problems of Mineral Processing CHEMISTRY, PHYSICAL-MINING & MINERAL PROCESSING

自引率

6.70%

发文量

期刊介绍： Physicochemical Problems of Mineral Processing is an international, open access journal which covers theoretical approaches and their practical applications in all aspects of mineral processing and extractive metallurgy. Criteria for publication in the Physicochemical Problems of Mineral Processing journal are novelty, quality and current interest. Manuscripts which only make routine use of minor extensions to well established methodologies are not appropriate for the journal. Topics of interest Analytical techniques and applied mineralogy Computer applications Comminution, classification and sorting Froth flotation Solid-liquid separation Gravity concentration Magnetic and electric separation Hydro and biohydrometallurgy Extractive metallurgy Recycling and mineral wastes Environmental aspects of mineral processing and other mineral processing related subjects.