Russian Journal of Physical Chemistry A最新文献_第7页

Weak Acid Impregnation of Y2O3 Enhances Photocatalytic Activity for the Degradation of Chlortetracycline Hydrochloride 弱酸浸渍Y2O3增强光催化降解盐酸氯四环素的活性

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2026-01-16 DOI: 10.1134/S0036024425702966

Liujing Wan, Mengxuan Wang, Xiaofeng Liang, Bing Zhang, Jingwen Xie

{"title":"Weak Acid Impregnation of Y2O3 Enhances Photocatalytic Activity for the Degradation of Chlortetracycline Hydrochloride","authors":"Liujing Wan, Mengxuan Wang, Xiaofeng Liang, Bing Zhang, Jingwen Xie","doi":"10.1134/S0036024425702966","DOIUrl":"10.1134/S0036024425702966","url":null,"abstract":"The Y2O3 catalyst was prepared by using citric acid complexation method and the decorated Y2O3 catalyst was obtained through industrial carbonic acid (CA) impregnation. The phase structure characterization confirmed that the cubic phase of Y2O3 was not destroyed by CA impregnation, but C–O functional groups were still present on the surface. After impregnating with CA, the surface contour of Y2O3 particles becomes clearer and the agglomeration phenomenon is weakened. The average particle size of the decorated Y2O3 is approximately 60 nm. Element mapping characterization also confirmed the presence of a small amount of C element in the decorated Y2O3. The photoresponse capability of the decorated Y2O3 catalyst can be extended from 400 nm to a visible light range of 800 nm. The optical bandgap value of the decorated Y2O3 decreased from the undecorated 3.15 to 2.88 eV. The degradation experiment carried out with chlortetracycline hydrochloride as the degradation target pollutant found that when the catalyst content was 1 g/L, the pollutant concentration was 150 mg/L and pH 5, the degradation percentage of the decorated Y2O3 catalyst reached 94.6%. Experiments and band theory have confirmed that the decorated Y2O3 catalyst has a high photocatalytic activity, which is related to the free radicals and its point of zero charge (PZC). The use of this new processing technology enables the expansion of the application range of wide bandgap semiconductor materials in the field of photocatalysis.","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"99 13","pages":"3464 - 3478"},"PeriodicalIF":0.8,"publicationDate":"2026-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145983276","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

Removal of Malachite Green from Aqueous Solution Using Purolite C100 Ion Exchange Resin: Insights into Adsorption Kinetics, Equilibrium, and Thermodynamics through Nonlinear Regression 用Purolite C100离子交换树脂从水溶液中去除孔雀石绿：通过非线性回归对吸附动力学，平衡和热力学的见解

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2026-01-16 DOI: 10.1134/S0036024425702905

Chalabia Dernane, Nassim Sayoud, Abdennour Bouchair, Asma Guendouz, Fatah Hadji

{"title":"Removal of Malachite Green from Aqueous Solution Using Purolite C100 Ion Exchange Resin: Insights into Adsorption Kinetics, Equilibrium, and Thermodynamics through Nonlinear Regression","authors":"Chalabia Dernane, Nassim Sayoud, Abdennour Bouchair, Asma Guendouz, Fatah Hadji","doi":"10.1134/S0036024425702905","DOIUrl":"10.1134/S0036024425702905","url":null,"abstract":"This study investigates the removal of malachite green (MG) dye from aqueous solutions using the strong acid cation-exchange resin, Purolite C100. Batch adsorption experiments were conducted to evaluate the influence of key operational parameters, including initial pH, resin dosage, initial dye concentration, and temperature. Kinetic analysis revealed that the pseudo-second-order (PSO) model provided an excellent fit to the experimental data (R2 > 0.99), suggesting that the rate-limiting step involves chemisorption-type interactions. Equilibrium data were best described by the Redlich–Peterson isotherm model, indicating a hybrid adsorption mechanism. The Langmuir model also provided a good fit, yielding a high maximum monolayer sorption capacity (qₘ) of 277.80 ± 9.63 mg g–1 at 50°C. Thermodynamic analysis revealed that the process is thermodynamically favorable under standard conditions (∆G° < 0), endothermic (ΔH° = +7.7 ± 0.1 kJ mol–1), and characterized by an increase in system entropy (ΔS° = +84.0 ± 1.1 J mol–1 K–1). Overall, this study confirms that Purolite C100 is a highly efficient and promising material for the sequestration of malachite green from contaminated wastewater.","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"99 13","pages":"3413 - 3426"},"PeriodicalIF":0.8,"publicationDate":"2026-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145983289","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 Potassium Iodide Addition on the Performance of Mesoporous Perovskite Solar Cells with Carbon Electrode 添加碘化钾对碳电极钙钛矿介孔太阳能电池性能的影响

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2026-01-16 DOI: 10.1134/S0036024425702954

Ju-Song Choe, Pyol Kim, Kyong-Su Sonu, Jin-Hyok Ri

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The Effect of Rare Earth Elements on Structural, Electronic, and Storage Properties for RNi5H6 Intermetallic Hydrides under Stress 稀土元素对应力作用下RNi5H6金属间氢化物结构、电子和存储性能的影响

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2026-01-16 DOI: 10.1134/S0036024425702851

Zahia Ayat, Aomar Boukraa

引用次数: 0

Unifying Solubility Diagrams of Multicomponent Quasi-Simple Systems 统一多组分准简单体系的溶解度图

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2026-01-16 DOI: 10.1134/S0036024425702802

N. A. Charykov, N. A. Kulenova, M. A. Sadenova, V. V. Kuznetsov, B. N. Azamatov, D. S. Dogadkin, M. V. Charykova

{"title":"Unifying Solubility Diagrams of Multicomponent Quasi-Simple Systems","authors":"N. A. Charykov, N. A. Kulenova, M. A. Sadenova, V. V. Kuznetsov, B. N. Azamatov, D. S. Dogadkin, M. V. Charykova","doi":"10.1134/S0036024425702802","DOIUrl":"10.1134/S0036024425702802","url":null,"abstract":"A system with three or more components (n ( geqslant ) 3) is quasi-simple if the isotherms–isobars–isopotentials of the system’s components (the solvents of solubility diagrams) are line segments (n = 3), sectors of planes (n = 4), or hyperplanes (n ( geqslant ) 5). This work presents evidence that all figurative points on monovariant branches of the joint crystallization of two identical solid phases in different quasi-simple quaternary systems (n = 4) (with two identical and one different component) belong to a single curve. Systems of equations are given for thermodynamic calculations of such curves exclusively from data on binary subsystems. Examples of calculating these monovariant curves are provided, and agreement is shown between non-model calculations and experimental data on the compositions of saturated solutions using quaternary systems with a common cation, a common anion, and quaternary reciprocal systems as examples. Agreement is also seen between results from thermodynamic calculations and numerous experimental data. The results can naturally be extended to monovariant crystallization lines of three or more identical solid phases on the solubility diagrams of quasi-simple systems with five or more components (and one that is different).","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"99 13","pages":"3302 - 3319"},"PeriodicalIF":0.8,"publicationDate":"2026-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145983128","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

Preparation and Electrochemical Study of LiNi1/3Co1/3Mn1/3O2 Cathode Materials by Co-Precipitation-Assisted Polymer Network Gel Method 共沉淀辅助聚合物网络凝胶法制备LiNi1/3Co1/3Mn1/3O2正极材料及电化学研究

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2026-01-16 DOI: 10.1134/S0036024425702942

Shihang Dai, Huidong Zhang, Yao Liu, Panpan Gu, Qinan Chen, Yana Wang

{"title":"Preparation and Electrochemical Study of LiNi1/3Co1/3Mn1/3O2 Cathode Materials by Co-Precipitation-Assisted Polymer Network Gel Method","authors":"Shihang Dai, Huidong Zhang, Yao Liu, Panpan Gu, Qinan Chen, Yana Wang","doi":"10.1134/S0036024425702942","DOIUrl":"10.1134/S0036024425702942","url":null,"abstract":"The LiNi1/3Co1/3Mn1/3O2 cathode material was successfully synthesized by the co-precipitation-assisted polymer network gel method. The prepared LiNi1/3Co1/3Mn1/3O2 material had a relatively small particle size and exhibited excellent electrochemical performance. The sample can provide an initial discharge specific capacity of 196.0 mA h g–1 (0.2 C). At a 2 C rate, the initial discharge reached 160.2 mA h g–1, and the capacity retention rate was 62.7% after 100 cycles. In addition, at a high magnification of 5 C, the capacity retention rate still remained at 56.0%, after 100 cycles. Electrochemical data indicated that the LiNi1/3Co1/3Mn1/3O2 material exhibits superior rate performance. The excellent electrochemical performance of the material was attributed to the constraints of the gel grid and the generation of flowing gas during the calcination of the carbonate precursor, which hinder the agglomeration of the powder and further enhances the dispersibility of the particles. The obtained LiNi1/3Co1/3Mn1/3O2 cathode material with uniform particle size reduced the charge transfer resistance and enhanced the lithium ion diffusion capacity.","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"99 13","pages":"3447 - 3457"},"PeriodicalIF":0.8,"publicationDate":"2026-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145983326","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

Defect-Driven Intercalation of Alkali Metals in Graphene-Based Materials: A Quantum-Chemical Approach 碱金属在石墨烯基材料中的缺陷驱动嵌入：量子化学方法

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2026-01-16 DOI: 10.1134/S0036024425702917

R. A. Sukhachev, M. V. Mamonova, P. V. Prudnikov, A. V. Lavrenov

引用次数: 0

Separation of Mass Transfer Mechanisms in Binary Metal Melts When Choosing the Orientation of the Component Distribution Channel 选择组分分布通道方向时二元金属熔体传质机制的分离

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2026-01-16 DOI: 10.1134/S0036024425702723

E. F. Timerbulatova, S. N. Uglev, N. P. Uglev

{"title":"Separation of Mass Transfer Mechanisms in Binary Metal Melts When Choosing the Orientation of the Component Distribution Channel","authors":"E. F. Timerbulatova, S. N. Uglev, N. P. Uglev","doi":"10.1134/S0036024425702723","DOIUrl":"10.1134/S0036024425702723","url":null,"abstract":"The binary and more complex metallic melts are characterized by instability of composition along the height of the melt. After having been kept for a short time in a vertical nonwetted vessel (crucible or capillary), the initially homogeneous melt acquires a gradient of component concentrations along the height, and the heavy component is distributed along the height of the crucible according to the barometric distribution of large particles (clusters). This is one of the factors responsible for the cluster structure of melts. An analysis of the experimental results leads to the conclusion that there is a second mechanism of mass transfer in liquid metals, namely, the transfer of atoms in the interphase monatomic layer at the boundary between the melt and capillary wall, which occurs simultaneously with diffusion. A number of special experiments clearly confirm this hypothesis. The experiment showed that the choice of orientation for the distribution channel of the melt components relative to the direction of the gravitational field makes it possible to isolate both mechanisms practically in “pure form,” and there is evidently no other way to explain the results of the experiment.","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"99 13","pages":"3235 - 3238"},"PeriodicalIF":0.8,"publicationDate":"2026-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145983031","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}

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Comparison of Deep Learning Methods for Solving the Phase Problem in X-ray Diffraction Analysis 解决x射线衍射分析中相位问题的深度学习方法比较

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2026-01-16 DOI: 10.1134/S0036024425702826

A. I. Khaibrakhmanov, A. O. Dmitrienko

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Determination of the Individual and Group Composition of Hydrocarbons in Gasoline on a Capillary Chromatographic Column with a Poly(1-trimethylsilyl-1-propyne) Stationary Phase 用聚（1-三甲基硅基-1-丙炔）固定相毛细管色谱柱测定汽油中碳氢化合物的单体和基团组成

IF 0.8 4区化学

Russian Journal of Physical Chemistry A Pub Date : 2026-01-16 DOI: 10.1134/S0036024425702929

Yu. V. Patrushev, E. Yu. Yakovleva

{"title":"Determination of the Individual and Group Composition of Hydrocarbons in Gasoline on a Capillary Chromatographic Column with a Poly(1-trimethylsilyl-1-propyne) Stationary Phase","authors":"Yu. V. Patrushev, E. Yu. Yakovleva","doi":"10.1134/S0036024425702929","DOIUrl":"10.1134/S0036024425702929","url":null,"abstract":"It is shown that the group and individual composition of A-92 motor gasoline can be determined on a PTMSP025 capillary column with a poly(1-trimethylsilyl-1-propyne) (PTMSP) stationary phase. It was found that the PTMSP column is characterized by the order of elution similar to that for capillary columns with porous organic polymers. Hydrocarbons are eluted in groups according to the number of carbon atoms in the molecule. Alkenes are eluted first in the group, and then alkanes are eluted. This order of hydrocarbon retention on the PTMSP025 column allows a more structured pattern of separation compared to the column with the polysiloxane stationary phase. Methyl-tert-butyl ether (MTBE), used as an octane booster, is determined on a PTMSP025 column without an additional sample preparation (concentration) step. The possibility of separating gasoline components using comprehensive two-dimensional chromatography was also demonstrated, where a PTMSP025 column was installed in the first dimension, and a column with dimethylpolysiloxane as a stationary phase in the second.","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"99 13","pages":"3434 - 3440"},"PeriodicalIF":0.8,"publicationDate":"2026-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145983223","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