Chemical Physics Letters最新文献_第3页

Synergistic design of thermoresponsive interpenetrating network hydrogels for efficient and dynamic Pb(II) adsorption 热响应互穿网络水凝胶高效动态吸附Pb（II）的协同设计

IF 3.1 3区化学

Chemical Physics Letters Pub Date : 2025-09-23 DOI: 10.1016/j.cplett.2025.142428

Haodong Wang , Yao Feng , Chaoqun Mu , Zhixian He , Lvling Zhong , Liang Zhang

{"title":"Synergistic design of thermoresponsive interpenetrating network hydrogels for efficient and dynamic Pb(II) adsorption","authors":"Haodong Wang , Yao Feng , Chaoqun Mu , Zhixian He , Lvling Zhong , Liang Zhang","doi":"10.1016/j.cplett.2025.142428","DOIUrl":"10.1016/j.cplett.2025.142428","url":null,"abstract":"<div><div>Thermo-responsive materials represent a novel class of functional materials capable of reversible swelling, contraction, or phase transition in response to environmental temperature changes, demonstrating vast potential in environmental remediation. This study successfully synthesized a composite hydrogel with interpenetrating network structure, using sodium alginate (SA) and sodium carboxymethyl cellulose (CMC) as the matrix, and incorporating the thermo-sensitive polymer poly(N-isopropylacrylamide) (PNIPAM). The SCP composite gel enables controlled adsorption and release of Pb(II) through temperature-dependent regulation of surface hydrophilicity. At lower temperatures, hydrophilic groups are exposed on the material surface, resulting in a high Pb(II) adsorption capacity of up to 311 mg g<sup>−1</sup>. When the temperature exceeds the lower critical solution temperature (LCST), a conformational transition occurs, leading to the concealment of hydrophilic groups and subsequent release of adsorbed Pb(II). This tunable approach ensures superior regeneration performance of the material. The reliability of the experimental data was further validated by fitting with isothermal adsorption models and kinetic models. This study has shown that SCP composite hydrogel is a cost-effective and highly efficient adsorbent for Pb(II), holding significant application value in the treatment of heavy metal wastewater.</div></div>","PeriodicalId":273,"journal":{"name":"Chemical Physics Letters","volume":"879 ","pages":"Article 142428"},"PeriodicalIF":3.1,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Study on luminescence properties of Eu2+ doped K-β-Al2O3 blue phosphor and its anti-counterfeiting application Eu2+掺杂K-β-Al2O3蓝色荧光粉的发光特性及其防伪应用研究

IF 3.1 3区化学

Chemical Physics Letters Pub Date : 2025-09-23 DOI: 10.1016/j.cplett.2025.142430

Zhihui Wang, Yingnan Dong, Yumeng Jia, Zhongxiang Shi, Jing Wang, Xu Sun

{"title":"Study on luminescence properties of Eu2+ doped K-β-Al2O3 blue phosphor and its anti-counterfeiting application","authors":"Zhihui Wang, Yingnan Dong, Yumeng Jia, Zhongxiang Shi, Jing Wang, Xu Sun","doi":"10.1016/j.cplett.2025.142430","DOIUrl":"10.1016/j.cplett.2025.142430","url":null,"abstract":"<div><div>Eu<sup>2+</sup> doped K-β-Al<sub>2</sub>O<sub>3</sub> blue phosphors were synthesized via the high temperature solid-state method. The crystal structure, microstructure and photoluminescence properties of the samples were characterized using XRD, SEM and fluorescence spectrum analysis. The results indicate that within the Eu<sup>2+</sup> doping concentration range, the synthesized products maintain a single K-β-Al<sub>2</sub>O<sub>3</sub> phase, and the lattice constant gradually decreases as the Eu<sup>2+</sup> doping concentration increases, suggesting that Eu<sup>2+</sup> ions occupy the K<sup>+</sup> sites in the conductive layer of the host crystal structure. The synthesized phosphor exhibits a hexagonal flake morphology, with uniform particle size and excellent dispersion performance. Under 345 nm near ultraviolet light excitation, the photoluminescence spectra display a single-peak narrow-band emission, with the emission peak centered around 445 nm, this emission originates from the 4<em>f</em> - 5<em>d</em> energy level transition of Eu<sup>2+</sup>. as the Eu<sup>2+</sup> doping concentration increases, the luminescence intensity of phosphors increases first rises and then declines. The maximum luminescence intensity is achieved when the Eu<sup>2+</sup> doping concentration reaches 7 mol%. Moreover, the synthesized phosphors demonstrate excellent thermal stability, retaining 76.5 % of their initial intensity at 423 K. The color coordinates of K<sub>1-<em>x</em></sub>Al<sub>11</sub>O<sub>17</sub>: <em>x</em>Eu<sup>2+</sup> phosphors are situated at the boundary of the blue light region under 345 nm near-ultraviolet light excitation, with a color purity exceeding 98 %, approaching pure blue. An anti-counterfeiting ink formulated with KAO: 0.07Eu<sup>2+</sup> blue phosphor and epoxy resin glue can achieve ideal anti-counterfeiting effect after when applied to patterns.</div></div>","PeriodicalId":273,"journal":{"name":"Chemical Physics Letters","volume":"879 ","pages":"Article 142430"},"PeriodicalIF":3.1,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Investigation of promising stable halide double perovskites K2LiXI6 (X = Al, Ga) for solar cells and thermoelectric device applications: DFT and SCAPS-1D simulation approach 用于太阳能电池和热电器件的稳定卤化物双钙钛矿K2LiXI6 （X = Al, Ga）的研究：DFT和SCAPS-1D模拟方法

IF 3.1 3区化学

Chemical Physics Letters Pub Date : 2025-09-23 DOI: 10.1016/j.cplett.2025.142433

Ahmad Ayyaz , Muhammad Kaleem , Abul Shakoor , Hanof Dawas Alkhaldi , Amna Nasir , Ali Akremi , Hind Albalawi , Q. Mahmood

引用次数: 0

Synergistic MoS2@MWCNT nanocomposites for high-efficiency catalysis and energy applications 协同MoS2@MWCNT纳米复合材料用于高效催化和能源应用

IF 3.1 3区化学

Chemical Physics Letters Pub Date : 2025-09-23 DOI: 10.1016/j.cplett.2025.142417

P.S. Auti , R.V. Kanawade , S.A. Alshehri , S.S. Warule , D.K. Shin , M.A. Yewale

{"title":"Synergistic MoS2@MWCNT nanocomposites for high-efficiency catalysis and energy applications","authors":"P.S. Auti , R.V. Kanawade , S.A. Alshehri , S.S. Warule , D.K. Shin , M.A. Yewale","doi":"10.1016/j.cplett.2025.142417","DOIUrl":"10.1016/j.cplett.2025.142417","url":null,"abstract":"<div><div>The MoS<sub>2</sub>-MWCNT composite heterojunction for its potential as an electrocatalyst and energy storage material. The composite demonstrated remarkable electrochemical performance, achieving a specific capacitance of 263 F/g, an energy density of 16.89 Wh/kg, and a power density of 478 W/kg. Using CV profiles, we analyzed the charge storage mechanism and found that the anodic and cathodic processes had b values of 0.48 and 0.45, respectively, indicating diffusion-controlled behavior. Diffusion coefficients of 6.44 × 10<sup>−7</sup> cm<sup>2</sup>/s (anodic) and 11.32 × 10<sup>−7</sup> cm<sup>2</sup>/s (cathodic) confirmed this mechanism. In the constructed device using MoS<sub>2</sub>-MWCNT and activated carbon (AC), we observed a specific capacitance of 18.71 F/g, an energy density of 5.09 Wh/kg, and a power density of 833 W/kg. After stability, testing, electrochemical impedance spectroscopy (EIS) revealed a slight increase in series resistance, rising from 2.33 Ω to 2.49 Ω. The MoS<sub>2</sub>-MWCNT composite also exhibited excellent electro catalytic performance. For the hydrogen evolution reaction (HER), it achieved an over potential of 0.221 V and a Tafel slope of 0.321 V/dec. After stability testing, we measured R<sub>s</sub> and R<sub>ct</sub> values of 4.86 Ω and 2.57 Ω, respectively. For the oxygen evolution reaction (OER), the composite showed an over potential of 597 mV and a Tafel slope of 0.285 V/dec, with post-stability R<sub>s</sub> and R<sub>ct</sub> values of 5.63 Ω and 5.57 Ω, respectively. These findings highlight the versatility of the MoS<sub>2</sub>-MWCNT composite for applications in energy storage and water splitting.</div></div>","PeriodicalId":273,"journal":{"name":"Chemical Physics Letters","volume":"879 ","pages":"Article 142417"},"PeriodicalIF":3.1,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Pressure-engineered enhanced exciton emission in the two-dimensional perovskite HA2PbBr4 压力工程增强二维钙钛矿HA2PbBr4中的激子发射

IF 3.1 3区化学

Chemical Physics Letters Pub Date : 2025-09-22 DOI: 10.1016/j.cplett.2025.142429

Yongfu Liang , Yuping Yang , Hui Xie , Xuerui Cheng , Xiang Zhu , Chaosheng Yuan , Zhijun Fu , Liying Jiang

引用次数: 0

Thermally controlled plasmonic modulation of HBO photoluminescence using embedded metal nanoparticles 利用嵌入的金属纳米颗粒热控制等离子体调制HBO光致发光

IF 3.1 3区化学

Chemical Physics Letters Pub Date : 2025-09-16 DOI: 10.1016/j.cplett.2025.142427

Shahid Iqbal , Griffin Wierzba , Spencer Sivertson , Joseph J.M. Hurley , Luke J. Schneider

引用次数: 0

Rapid and effective synthesis of fern-shaped silver nanodendrites decorated with gold nanoparticles to improve SERS detection of endosulfan 快速有效地合成蕨类银纳米树突修饰金纳米粒子以提高硫丹的SERS检测

IF 3.1 3区化学

Chemical Physics Letters Pub Date : 2025-09-16 DOI: 10.1016/j.cplett.2025.142420

Sy Van Vu , Van-Dung Le , Van-Nam Dao , Quang Duy Nguyen , Tien Nu Hoang Lo , In Park , Khuong Quoc Vo

{"title":"Rapid and effective synthesis of fern-shaped silver nanodendrites decorated with gold nanoparticles to improve SERS detection of endosulfan","authors":"Sy Van Vu , Van-Dung Le , Van-Nam Dao , Quang Duy Nguyen , Tien Nu Hoang Lo , In Park , Khuong Quoc Vo","doi":"10.1016/j.cplett.2025.142420","DOIUrl":"10.1016/j.cplett.2025.142420","url":null,"abstract":"<div><div>The advancement of surface-enhanced Raman scattering (SERS) nanosubstrates is a key goal in research, focusing on improving sensitivity and simplifying fabrication. This study presents a simple method for synthesizing gold/silver nanodendrites (Au/AgNDs) via a redox process at room temperature, enabling the rapid production of highly branched nanostructures in minutes without the need for additional solvents, reducing agents, or stabilizers. Furthermore, by systematically varying the concentration of precursors and the reaction time, it is possible to produce different morphologies for AgNDs. The rough Au/AgNDs surface provides a high density of electromagnetic sites, which benefits molecular analysis using SERS techniques. AgNDs with branch lengths ranging from 1.0 to 10 μm were selected for gold nanoparticle decoration based on governing conditions, including reaction time, reagent concentrations, and temperature. The effectiveness of the Au/AgNDs substrate in detecting endosulfan was evaluated, showing a detection limit (LOD) of 0.087 ppb, quantification limit (LOQ) of 0.284 ppb, and a percentage relative standard deviation (RSD) of 5.61 % based on 18 random measurement locations across five substrates with at least 4 points tested per substrate, indicating good reproducibility. The FDTD method simulated the EM fields on Au/AgNDs, supporting the purely theoretical findings about the ability of these nanomaterials to enhance SERS. These results show that Au/AgNDs are potential SERS substrates for chemical sensing and environmental monitoring.</div></div>","PeriodicalId":273,"journal":{"name":"Chemical Physics Letters","volume":"879 ","pages":"Article 142420"},"PeriodicalIF":3.1,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145096269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Corrigendum to “Synthesis and characterization of novel Cu (II) and Zn (II) complexes of 5-{[(2-Hydroxyethyl) sulfanyl] methyl}-8-hydroxyquinoline as effective acid corrosion inhibitor by experimental and computational testings” [Chem. Phys. Lett. 754 (2020) 137771] 5-{[（2-羟乙基）磺胺基]甲基}-8-羟基喹啉作为有效的酸性缓蚀剂的新型Cu （II）和Zn （II）配合物的合成和表征的实验和计算测试的更正理论物理。Lett. 754 (2020) 137771]

IF 3.1 3区化学

Chemical Physics Letters Pub Date : 2025-09-15 DOI: 10.1016/j.cplett.2025.142408

M. Rbaa , F. Benhiba , M. Galai , Ashraf S. Abousalem , M. Ouakki , Chin-Hung Lai , B. Lakhrissi , C. Jama , I. Warad , M. Ebn Touhami , A. Zarrouk

引用次数: 0

Extension of the CC(P;Q) formalism to the electron attachment and ionization potential equation-of-motion coupled-cluster frameworks CC（P；Q）形式在电子附着和电离势运动方程-簇耦合框架中的推广

IF 3.1 3区化学

Chemical Physics Letters Pub Date : 2025-09-13 DOI: 10.1016/j.cplett.2025.142371

Karthik Gururangan , Stephen H. Yuwono , A. Eugene DePrince III , Piotr Piecuch

{"title":"Extension of the CC(P;Q) formalism to the electron attachment and ionization potential equation-of-motion coupled-cluster frameworks","authors":"Karthik Gururangan , Stephen H. Yuwono , A. Eugene DePrince III , Piotr Piecuch","doi":"10.1016/j.cplett.2025.142371","DOIUrl":"10.1016/j.cplett.2025.142371","url":null,"abstract":"<div><div>We combine the electron attachment (EA) and ionization potential (IP) equation-of-motion (EOM) coupled-cluster (CC) approaches with the CC(<span><math><mi>P</mi></math></span>;<span><math><mi>Q</mi></math></span>) formalism. The resulting methodologies are used to describe the electronic states of several open-shell molecules, with the goal of approximating high-level EA/IP-EOMCC energetics corresponding to a full treatment of 3-particle–2-hole (3<span><math><mi>p</mi></math></span>-2<span><math><mi>h</mi></math></span>) and 3-hole–2-particle (3<span><math><mi>h</mi></math></span>-2<span><math><mi>p</mi></math></span>) excitations on top of CC with singles and doubles (CCSD). We show that the active-orbital-based EA/IP-EOMCC CC(<span><math><mi>P</mi></math></span>;<span><math><mi>Q</mi></math></span>) approaches, abbreviated as EA/IP-CC(t;3), achieve sub-millihartree accuracies relative to the parent EA-EOMCCSD(3<span><math><mi>p</mi></math></span>-2<span><math><mi>h</mi></math></span>)/IP-EOMCCSD(3<span><math><mi>h</mi></math></span>-2<span><math><mi>p</mi></math></span>) data using reduced computational effort, while improving upon their completely renormalized EA/IP-CR-EOMCC(2,3) counterparts.</div></div>","PeriodicalId":273,"journal":{"name":"Chemical Physics Letters","volume":"880 ","pages":"Article 142371"},"PeriodicalIF":3.1,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Enhanced thermoelectric performance in SnSe₂ through CuBr induced phase transition and phonon scattering 通过cur诱导相变和声子散射增强SnSe 2的热电性能

IF 3.1 3区化学

Chemical Physics Letters Pub Date : 2025-09-13 DOI: 10.1016/j.cplett.2025.142418

Shoumei Liu , Siqi Lin , Zhenyu Lai , Zhenjia Liu , Xiaotang Yang , Xiaofei Yue , Min Jin

引用次数: 0