D. A. Khvoshchevskaya, V. O. Veselova, S. V. Golodukhina, S. Yu. Kottsov, A. G. Son, O. M. Gaitko
{"title":"浸渍法制备镨掺杂GeO2气凝胶","authors":"D. A. Khvoshchevskaya, V. O. Veselova, S. V. Golodukhina, S. Yu. Kottsov, A. G. Son, O. M. Gaitko","doi":"10.1134/S1990793124701343","DOIUrl":null,"url":null,"abstract":"<p>A simple method for the preparation of doped GeO<sub>2</sub> aerogels is proposed. At the first stage, a gel with a composition of (NH<sub>4</sub>)<sub>3</sub>H(Ge<sub>7</sub>O<sub>16</sub>)(H<sub>2</sub>O)<sub><i>x</i></sub> was obtained by dissolving germanium dioxide in aqueous ammonia with pH 8.2. The dopant ions were introduced by impregnating the hydrogels with a dimethyl sulfoxide (DMSO) solution of praseodymium nitrate. The optimum conditions of the synthesis were determined, which allow uniform distribution of the dopant ion in the matrix. The Pr/Ge ratio in the resulting aerogels was 0.1. The aerogel samples were characterized in detail by IR, inductively coupled plasma-atomic emission spectroscopy (ICP-AES), low-temperature nitrogen adsorption, etc. It was found that praseodymium affects the luminescence characteristics of GeO<sub>2</sub> aerogels during excitation radiation with a wavelength of 240, 255, and 390 nm.</p>","PeriodicalId":768,"journal":{"name":"Russian Journal of Physical Chemistry B","volume":"18 8","pages":"1785 - 1794"},"PeriodicalIF":1.4000,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis of Praseodymium-Doped GeO2 Aerogels by Impregnation\",\"authors\":\"D. A. Khvoshchevskaya, V. O. Veselova, S. V. Golodukhina, S. Yu. Kottsov, A. G. Son, O. M. Gaitko\",\"doi\":\"10.1134/S1990793124701343\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>A simple method for the preparation of doped GeO<sub>2</sub> aerogels is proposed. At the first stage, a gel with a composition of (NH<sub>4</sub>)<sub>3</sub>H(Ge<sub>7</sub>O<sub>16</sub>)(H<sub>2</sub>O)<sub><i>x</i></sub> was obtained by dissolving germanium dioxide in aqueous ammonia with pH 8.2. The dopant ions were introduced by impregnating the hydrogels with a dimethyl sulfoxide (DMSO) solution of praseodymium nitrate. The optimum conditions of the synthesis were determined, which allow uniform distribution of the dopant ion in the matrix. The Pr/Ge ratio in the resulting aerogels was 0.1. The aerogel samples were characterized in detail by IR, inductively coupled plasma-atomic emission spectroscopy (ICP-AES), low-temperature nitrogen adsorption, etc. It was found that praseodymium affects the luminescence characteristics of GeO<sub>2</sub> aerogels during excitation radiation with a wavelength of 240, 255, and 390 nm.</p>\",\"PeriodicalId\":768,\"journal\":{\"name\":\"Russian Journal of Physical Chemistry B\",\"volume\":\"18 8\",\"pages\":\"1785 - 1794\"},\"PeriodicalIF\":1.4000,\"publicationDate\":\"2025-03-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Russian Journal of Physical Chemistry B\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S1990793124701343\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"PHYSICS, ATOMIC, MOLECULAR & CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Journal of Physical Chemistry B","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1134/S1990793124701343","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, ATOMIC, MOLECULAR & CHEMICAL","Score":null,"Total":0}
Synthesis of Praseodymium-Doped GeO2 Aerogels by Impregnation
A simple method for the preparation of doped GeO2 aerogels is proposed. At the first stage, a gel with a composition of (NH4)3H(Ge7O16)(H2O)x was obtained by dissolving germanium dioxide in aqueous ammonia with pH 8.2. The dopant ions were introduced by impregnating the hydrogels with a dimethyl sulfoxide (DMSO) solution of praseodymium nitrate. The optimum conditions of the synthesis were determined, which allow uniform distribution of the dopant ion in the matrix. The Pr/Ge ratio in the resulting aerogels was 0.1. The aerogel samples were characterized in detail by IR, inductively coupled plasma-atomic emission spectroscopy (ICP-AES), low-temperature nitrogen adsorption, etc. It was found that praseodymium affects the luminescence characteristics of GeO2 aerogels during excitation radiation with a wavelength of 240, 255, and 390 nm.
期刊介绍：
Russian Journal of Physical Chemistry B: Focus on Physics is a journal that publishes studies in the following areas: elementary physical and chemical processes; structure of chemical compounds, reactivity, effect of external field and environment on chemical transformations; molecular dynamics and molecular organization; dynamics and kinetics of photoand radiation-induced processes; mechanism of chemical reactions in gas and condensed phases and at interfaces; chain and thermal processes of ignition, combustion and detonation in gases, two-phase and condensed systems; shock waves; new physical methods of examining chemical reactions; and biological processes in chemical physics.
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