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Adsorptive Removal of ({{text{UO}}}_{2}^{2+}) Ions from Aqueous Solutions by Ni(II)/Fe(III)-Layered Double Hydroxides and its Magnetic Nanocomposites 镍(II)/铁(III)层状双氢氧化物及其磁性纳米复合材料吸附去除水溶液中的 $${{text{UO}}}_{2}^{2+}$ 离子
IF 0.7 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2024-03-18 DOI: 10.1007/s11237-024-09796-7
T. S. Hubetska, V. Ya. Demchenko, N. G. Kobylinska
{"title":"Adsorptive Removal of ({{text{UO}}}_{2}^{2+}) Ions from Aqueous Solutions by Ni(II)/Fe(III)-Layered Double Hydroxides and its Magnetic Nanocomposites","authors":"T. S. Hubetska,&nbsp;V. Ya. Demchenko,&nbsp;N. G. Kobylinska","doi":"10.1007/s11237-024-09796-7","DOIUrl":"10.1007/s11237-024-09796-7","url":null,"abstract":"<p>Comparative analysis of the sorption ability of the obtained carbonate forms of layered double hydroxides with different Ni(II)/Fe(III) ratio and their magnetic nanocomposites toward <span>({{text{UO}}}_{2}^{2+})</span> ions in aqueous solutions is performed. The synergistic effect of magnetic composite sorbents based on layered double hydroxides and magnetite on the removal uranyl ions in a wide pH range (3.5-9.5) is shown. Due to the high efficiency in combination with magnetic solid-phase separation, the obtained adsorption materials are promising for the purification of uranium-containing natural and wastewaters.</p>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"59 5","pages":"364 - 376"},"PeriodicalIF":0.7,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140151612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Photocatalytic Reforming of Biomass Components Using Systems Based on Graphite-Like Carbon Nitride: A Review 利用基于类石墨氮化碳的系统对生物质成分进行光催化转化：综述
IF 0.7 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2024-01-19 DOI: 10.1007/s11237-024-09783-y
S. Ya. Kuchmiy
{"title":"Photocatalytic Reforming of Biomass Components Using Systems Based on Graphite-Like Carbon Nitride: A Review","authors":"S. Ya. Kuchmiy","doi":"10.1007/s11237-024-09783-y","DOIUrl":"10.1007/s11237-024-09783-y","url":null,"abstract":"<p>The current state of research on photocatalytic reforming of organic substances of natural origin using graphite-like carbon nitride, namely its various morphological forms, products of modification by chemical agents, doped with metals and non-metals, nanocomposites with metals and other semiconductors, etc., is considered. Reactions that lead to molecular hydrogen evolution from aqueous solutions of electron-donating organic compounds (lignocellulose, saccharides, alcohols, aldehydes, and acids), processes of simultaneous production of H<sub>2</sub> and oxidation of biomass components with the formation of valuable organic substances, as well as reactions of a reduction of several aldehydes of natural origin are analyzed. Possible ways of further research in this photocatalysis branch are outlined.</p>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"59 4","pages":"231 - 259"},"PeriodicalIF":0.7,"publicationDate":"2024-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139509933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Chemoselective Photocatalytic Reduction of Furfural to Furfuryl Alcohol Under the Influence of Visible Light with the Participation of Nanocrystalline Carbon Nitride and Palladium Co-Catalysts 纳米晶氮化碳和钯共催化剂在可见光影响下将糠醛化学选择性光催化还原为糠醇
IF 0.7 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2024-01-13 DOI: 10.1007/s11237-024-09785-w
G. V. Korzhak, T. R. Stara, O. S. Kutsenko, P. O. Kuzema, V. M. Anishchenko, S. Ya. Kuchmiy
{"title":"Chemoselective Photocatalytic Reduction of Furfural to Furfuryl Alcohol Under the Influence of Visible Light with the Participation of Nanocrystalline Carbon Nitride and Palladium Co-Catalysts","authors":"G. V. Korzhak,&nbsp;T. R. Stara,&nbsp;O. S. Kutsenko,&nbsp;P. O. Kuzema,&nbsp;V. M. Anishchenko,&nbsp;S. Ya. Kuchmiy","doi":"10.1007/s11237-024-09785-w","DOIUrl":"10.1007/s11237-024-09785-w","url":null,"abstract":"<p>It is established that crystalline graphite-like carbon nitride (CGCN) exhibits high photocatalytic activity in the process of chemoselective reduction of furfural to furfuryl alcohol in the presence of co-catalysts under the action of visible light by electron-donating substrates, such as methanol/water and ethanol/water, in an acidic medium. When palladium chloride additives are introduced into the reaction mixture, the rate of the process is higher than with the participation of the Pd/SiO<sub>2</sub> co-catalyst. This phenomenon may be due to the in situ formation of the CGCN/Pd<sup>0</sup> composite photocatalyst in the presence of PdCl<sub>2</sub>, where the photogenerated charges are better separated than in the CGCN-Pd/SiO<sub>2</sub> system. The effective quantum yield of furfural reduction is 56% at λ<sub>irr</sub> = 405 nm) under optimal conditions.</p>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"59 4","pages":"268 - 275"},"PeriodicalIF":0.7,"publicationDate":"2024-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139459575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Catalytic Conversion of Dihydroxyacetone to Methyl Lactate Over SnO2/Al2O3 Catalysts 二氧化锡/氧化铝催化剂催化二羟基丙酮转化为乳酸甲酯
IF 0.7 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2024-01-13 DOI: 10.1007/s11237-024-09789-6
N. L. Hes, A. M. Mylin, S. V. Prudius
{"title":"Catalytic Conversion of Dihydroxyacetone to Methyl Lactate Over SnO2/Al2O3 Catalysts","authors":"N. L. Hes,&nbsp;A. M. Mylin,&nbsp;S. V. Prudius","doi":"10.1007/s11237-024-09789-6","DOIUrl":"10.1007/s11237-024-09789-6","url":null,"abstract":"<p>The conversion of dihydroxyacetone solution in methanol to methyl lactate has been studied in flow regime using xSnO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub>-supported catalysts that have been characterized by XRD, low-temperature nitrogen (ad)desorption analysis, and UV-Vis spectroscopy. It is found that Lewis and Brønsted acid sites of the surface of SnO<sub>2</sub>-containing catalysts play a crucial role in the selective conversion of dihydroxyacetone to methyl lactate. The formation of methyl lactate with a selectivity of 90% is achieved on 5%SnO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> catalyst at 160°C, 1.0 MPa, and under feed rate of 4 mmol C<sub>3</sub>H<sub>6</sub>O<sub>3</sub>/(g<sub>cat</sub>·h).</p>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"59 4","pages":"302 - 306"},"PeriodicalIF":0.7,"publicationDate":"2024-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139459867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of the Morphology of the Surface of Titanium Dioxide Nanocrystallites on Their Catalytic Properties in the Alcohol Conversion Reactions 二氧化钛纳米晶表面形态对其在酒精转化反应中催化特性的影响
IF 0.7 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2024-01-13 DOI: 10.1007/s11237-024-09788-7
A. I. Trypolskyi, N. I. Ermokhina, V. M. Grebennikov, D. O. Klymchuk, G. R. Kosmambetova, O. Z. Didenko, P. A. Manoryk
{"title":"Influence of the Morphology of the Surface of Titanium Dioxide Nanocrystallites on Their Catalytic Properties in the Alcohol Conversion Reactions","authors":"A. I. Trypolskyi,&nbsp;N. I. Ermokhina,&nbsp;V. M. Grebennikov,&nbsp;D. O. Klymchuk,&nbsp;G. R. Kosmambetova,&nbsp;O. Z. Didenko,&nbsp;P. A. Manoryk","doi":"10.1007/s11237-024-09788-7","DOIUrl":"10.1007/s11237-024-09788-7","url":null,"abstract":"<p>By using a fractal approach, it is found that the irregular structure of the surface of titanium dioxide-based catalyst has a significant effect on the values of the rate constants and activation energies of the reaction of dehydrogenation and dehydration of ethanol, n-propanol, and iso-propanol. Kinetics of ethyl and propyl alcohol conversions on titanium dioxide samples with different textures and morphologies is studied. Dependencies of activation energy and pre-exponential factor of the reaction rate on the alcohol conversions on the TiO<sub>2</sub> samples on their structural characteristics, particularly a fractal dimension, are established.</p>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"59 4","pages":"293 - 301"},"PeriodicalIF":0.7,"publicationDate":"2024-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139459860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Surface Acidity of Codoped C,S-TiO2 on Their Photocatalytic Properties in the Hydrogen Evolution and Ethanol Oxidation Processes 共掺 C，S-二氧化钛的表面酸度对其在氢气挥发和乙醇氧化过程中光催化性能的影响
IF 0.7 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2024-01-13 DOI: 10.1007/s11237-024-09784-x
N. I. Romanovska, G. V. Korzhak, V. M. Grebennikov, O. V. Shulzshenko, P. S. Yaremov, N. I. Ermokhina, P. A. Manoryk
{"title":"Effect of Surface Acidity of Codoped C,S-TiO2 on Their Photocatalytic Properties in the Hydrogen Evolution and Ethanol Oxidation Processes","authors":"N. I. Romanovska,&nbsp;G. V. Korzhak,&nbsp;V. M. Grebennikov,&nbsp;O. V. Shulzshenko,&nbsp;P. S. Yaremov,&nbsp;N. I. Ermokhina,&nbsp;P. A. Manoryk","doi":"10.1007/s11237-024-09784-x","DOIUrl":"10.1007/s11237-024-09784-x","url":null,"abstract":"<p>Codoped C,S-TiO<sub>2</sub> nanostructures with similar structural and dimensional characteristics and different surface acidity have been obtained using a hydrothermal sol–gel method in the presence thiourea or sulfuric acid. It is established that C,S-TiO<sub>2</sub> obtained in the presence of H<sub>2</sub>SO<sub>4</sub> are characterized with acidity of 0.45 mmol/g that results in a high photocatalytic activity in the process of ethanol oxidation. It is shown that C,S-TiO<sub>2</sub> obtained in the presence of thiourea, exhibits photocatalytic activity in the reaction of hydrogen evolution under UV and visible light irradiation, which increases with surface acidity decreasing.</p>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"59 4","pages":"260 - 267"},"PeriodicalIF":0.7,"publicationDate":"2024-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139459776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Photocatalytic Activity of SrTiO3 and BaTiO3 Nanostructures, Formed by the Sol-Gel Method, in the Process of Nitrogen Dioxide Decomposition 溶胶-凝胶法形成的 SrTiO3 和 BaTiO3 纳米结构在二氧化氮分解过程中的光催化活性
IF 0.7 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2024-01-13 DOI: 10.1007/s11237-024-09786-9
M. L. Ovcharov, P. I. Glukhova, A. M. Mishura, V. M. Granchak
{"title":"Photocatalytic Activity of SrTiO3 and BaTiO3 Nanostructures, Formed by the Sol-Gel Method, in the Process of Nitrogen Dioxide Decomposition","authors":"M. L. Ovcharov,&nbsp;P. I. Glukhova,&nbsp;A. M. Mishura,&nbsp;V. M. Granchak","doi":"10.1007/s11237-024-09786-9","DOIUrl":"10.1007/s11237-024-09786-9","url":null,"abstract":"<p>Strontium and barium titanates with a perovskite structure have been obtained using a sol–gel method. It is shown that these materials are characterized by high values of a band gap (3.1 and 3.2 eV for SrTiO<sub>3</sub> and BaTiO<sub>3</sub>, respectively). Morphological characteristics of the obtained titanates are considered, the presence of micrometer aggregates, consisting of nanosticks (diameter of 20-40 nm, length of 100-200 nm) and nanocrystals with size of 20-70 nm, is established. The photocatalytic properties of the samples in the process of NO<sub>2</sub> decomposition to N<sub>2</sub> and O<sub>2</sub> under UV irradiation (λ = 365 nm) are studied, a possible mechanism of nitrogen dioxide conversion is discussed.</p>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"59 4","pages":"276 - 284"},"PeriodicalIF":0.7,"publicationDate":"2024-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139459777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cobalt(II) Metallopolymers with 5-methyl-5-hexene-2,4-dione Immobilized on a Polystyrene Matrix as Initiators of Radical Polymerization of Metyl Methacrylate 固定在聚苯乙烯基质上的 5-甲基-5-己烯-2,4-二酮金属钴（II）聚合物作为甲基丙烯酸甲酯自由基聚合的引发剂
IF 0.7 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2024-01-12 DOI: 10.1007/s11237-024-09787-8
O. V. Shevchenko, K. V. Burenkova, S. A. Kurta
{"title":"Cobalt(II) Metallopolymers with 5-methyl-5-hexene-2,4-dione Immobilized on a Polystyrene Matrix as Initiators of Radical Polymerization of Metyl Methacrylate","authors":"O. V. Shevchenko,&nbsp;K. V. Burenkova,&nbsp;S. A. Kurta","doi":"10.1007/s11237-024-09787-8","DOIUrl":"10.1007/s11237-024-09787-8","url":null,"abstract":"<p>Complexation of a copolymer of styrene and 5-methyl-5-hexene-2,4-dione with cobalt chloride in dimethylformamide occurs with the formation of metallopolymers of two types, namely with intra- and extramolecular binding of β-diketone groups, the ratio of which depends on the concentration of the initial macromolecular ligand. It has been established that the polymer metal complexes differ in the geometry of the coordination unit, molecular weights, and metal content resulting in the different reactivity to initiation of graft radical polymerization of methyl methacrylate.</p>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"59 4","pages":"285 - 292"},"PeriodicalIF":0.7,"publicationDate":"2024-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139459726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Catalytic Hydrodehalogenation of Haloarenes with Hydrogen and Hydrogen-Containing Compounds: A Review 氢及含氢化合物催化卤代芳烃加氢脱卤研究进展
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2023-11-10 DOI: 10.1007/s11237-023-09775-4
V. Sh. Saberov, G. F. Rayenko, A. S. Avksentiev, L. M. Vakhitova, N. I. Korotkikh
{"title":"Catalytic Hydrodehalogenation of Haloarenes with Hydrogen and Hydrogen-Containing Compounds: A Review","authors":"V. Sh. Saberov,&nbsp;G. F. Rayenko,&nbsp;A. S. Avksentiev,&nbsp;L. M. Vakhitova,&nbsp;N. I. Korotkikh","doi":"10.1007/s11237-023-09775-4","DOIUrl":"10.1007/s11237-023-09775-4","url":null,"abstract":"<div><div><p>New catalytic methods for the hydrodehalogenation of haloarenes with hydrogen and hydrogen-containing reagents (metal and non-metal hydrids, organic hydrogen-containing compounds, etc.), which are essential for fine organic synthesis and neutralization of toxic production waste and persistent organic pollutants. The paper focuses on such catalysts as complexes of stable heterocyclic carbenes, transition metals, and nanosized metal particles and their composites, as the most promising for industrial chemistry. Catalysts with particularly high efficiency have been highlighted.</p></div></div>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"59 3","pages":"151 - 177"},"PeriodicalIF":1.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134796050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Photovoltaic Properties of Thiophene-Containing Derivatives of 4,5-Diazafluorene and Their Ruthenium(II) Complexes 含噻吩的4,5-重氮芴衍生物及其钌(II)配合物的光伏性质
IF 1 4区 化学
Theoretical and Experimental Chemistry Pub Date : 2023-11-03 DOI: 10.1007/s11237-023-09777-2
C. Sezgin, İ. Erden
{"title":"Photovoltaic Properties of Thiophene-Containing Derivatives of 4,5-Diazafluorene and Their Ruthenium(II) Complexes","authors":"C. Sezgin,&nbsp;İ. Erden","doi":"10.1007/s11237-023-09777-2","DOIUrl":"10.1007/s11237-023-09777-2","url":null,"abstract":"<div><div><p>It is shown that the derivatives of 4,5-diazafluorenone-9-hydrazone containing thiophene and aldehyde anchor groups, as well as mixed-ligand Ru(II) complexes with these dyes and bipyridine, have the properties of sensibilizers of TiO<sub>2</sub>-based photovoltaic cells. The power conversion efficiency (η) in such photovoltaic elements under simulated 100 mW/cm<sup>2</sup> solar radiation is in the range of 0.25-0.48%. The value of η in the case of compounds, bearing thiophene-2,5-dicarbaldehyde fragment as an anchor, is almost two times higher compared to the analogues, containing non-substituted thiophene fragment.</p></div></div>","PeriodicalId":796,"journal":{"name":"Theoretical and Experimental Chemistry","volume":"59 3","pages":"186 - 192"},"PeriodicalIF":1.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134878251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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