水热合成乳酸稳定纳米二氧化铪水溶液及其酶样活性

IF 1.8 3区化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Russian Journal of Inorganic Chemistry Pub Date : 2024-12-16 DOI:10.1134/S0036023624602927

G. S. Taran, E. D. Sheichenko, M. A. Popkov, K. N. Novoselova, Yu. A. Kochenkova, A. D. Filippova, A. E. Baranchikov, V. K. Ivanov

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引用次数: 0

摘要

建立了一种制备纳米二氧化铪水溶胶的方法（水动力直径为20-35 nm），该溶胶由乳酸（乳酸离子）稳定，具有高胶体稳定性（ζ电位-29 mV）。该方法是基于在尿素存在下，在180℃和220℃的温度下，对初步得到的铪与乳酸的络合化合物进行水热处理48和96小时。对鲁米诺氧化模型反应的化学发光分析确定，溶胶中的纳米晶氧化铪对过氧化氢表现出剂量依赖性的促氧化活性，因此具有过氧化物酶样性质。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Hydrothermal Synthesis of Aqueous Sols of Lactic Acid-Stabilized Nanocrystalline Hafnium Dioxide and Their Enzyme-Like Activity

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Hydrothermal Synthesis of Aqueous Sols of Lactic Acid-Stabilized Nanocrystalline Hafnium Dioxide and Their Enzyme-Like Activity

A method was developed to produce aqueous sols of nanocrystalline hafnium dioxide (with a hydrodynamic diameter of 20–35 nm), which were stabilized by lactic acid (lactate ions) and characterized by high colloidal stability (ζ-potential –29 mV). The method is based on hydrothermal treatment of a preliminarily obtained complex compound of hafnium with lactic acid in the presence of urea at temperatures of 180 and 220°C for 48 and 96 h. Chemiluminescent analysis in a model reaction of luminol oxidation determined that nanocrystalline hafnium oxide in the sols exhibits dose-dependent prooxidant activity toward hydrogen peroxide and thus has peroxidase-like properties.

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来源期刊

Russian Journal of Inorganic Chemistry 化学-无机化学与核化学

CiteScore

3.10

自引率

38.10%

发文量

237

审稿时长

3 months

期刊介绍： Russian Journal of Inorganic Chemistry is a monthly periodical that covers the following topics of research: the synthesis and properties of inorganic compounds, coordination compounds, physicochemical analysis of inorganic systems, theoretical inorganic chemistry, physical methods of investigation, chemistry of solutions, inorganic materials, and nanomaterials.