Materials Research Bulletin最新文献

英文中文

Fluorescence-based single-sensor platform using polymer-coated CdSe/ZnS quantum dots for discrimination of isoniazid, hydrazine, lactose, and pharmaceutical tablets 基于荧光的单传感器平台，利用聚合物包被CdSe/ZnS量子点对异烟肼、肼、乳糖和药物片剂进行鉴别

IF 5.7 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Bulletin

Pub Date : 2026-01-03 DOI: 10.1016/j.materresbull.2026.113990

Masoumeh Hasani, Fereshteh Emami

We present a single-sensor, fluorescence-based platform using amphiphilic polymer-coated CdSe/ZnS quantum dots (PMA-QDs) for detection of isoniazid (INH), hydrazine (HZ), lactose (LAC), their mixtures, and commercial tablet formulations. The PMA-QDs exhibit distinct fluorescence quenching patterns upon interaction with each analyte, creating unique molecular fingerprints. Chemometric analysis with principal component analysis (PCA), linear discriminant analysis (LDA), and hierarchical clustering analysis (HCA) enabled accurate discrimination of individual compounds, mixtures, and tablet formulations, achieving 100% classification in leave-one-out cross-validation. The system showed high sensitivity to hydrazine, a toxic INH metabolite, detecting its formation under thermal stress and simulated in vitro metabolism. Furthermore, PMA-QDs distinguished between commercial INH tablet brands, demonstrating potential for quality control. Correlations between redox potentials and quenching efficiencies were observed, providing insight into the sensing mechanism. This versatile, multiplexed approach offers a practical strategy for drug screening, diagnostics, and metabolite monitoring in complex matrices.

我们提出了一个单传感器、基于荧光的平台，使用两亲性聚合物包被的CdSe/ZnS量子点（PMA-QDs）检测异烟肼（INH）、肼（HZ）、乳糖（LAC）、它们的混合物和商业片剂配方。PMA-QDs在与每种分析物相互作用时表现出不同的荧光猝灭模式，形成独特的分子指纹图谱。主成分分析（PCA）、线性判别分析（LDA）和层次聚类分析（HCA）的化学计量学分析能够准确区分单个化合物、混合物和片剂配方，在留一交叉验证中实现100%分类。该系统对肼（一种有毒的INH代谢物）具有很高的敏感性，可以检测其在热应激下的形成并模拟体外代谢。此外，PMA-QDs区分了商业INH片剂品牌，显示了质量控制的潜力。观察到氧化还原电位和猝灭效率之间的相关性，从而深入了解感应机制。这种多功能、多路复用的方法为复杂基质中的药物筛选、诊断和代谢物监测提供了实用的策略。

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引用次数: 0

Thermal induced upconversion luminescence modulation and optical temperature sensing of (KMg)0.6Lu1.4(MoO4)3: Yb3+/Ho3+ phosphors （KMg）0.6Lu1.4(MoO4)3: Yb3+/Ho3+荧光粉的热致上转换发光调制和光学温度传感

IF 5.7 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Bulletin

Pub Date : 2026-01-03 DOI: 10.1016/j.materresbull.2026.113991

Ying Yang , Yiqi Yu , Liuzhen Feng , Renfu Li , Zhiwen Ao , Jinmin Zhang , Yijian Sun , Jinsheng Liao

A series of (KMg)_0.6Lu_1.4(MoO₄)₃: Yb³⁺/Ho³⁺ (KMLMO: Yb/Ho) phosphors were synthesized via a solid-state reaction method. Experiments demonstrated that the optimal KMLMO:30%Yb/1%Ho phosphor is a two-dimensional negative thermal expansion material. At 980 nm excitation, KMLMO: Yb/Ho phosphor exhibits distinct upconversion emission peaks at 543 and 662 nm. As temperature increases, the non-radiative relaxations (NR1: ⁵I₆→⁵I₇ and NR2: ⁵F₄/⁵S₂→⁵F₅) of Ho³⁺ are enhanced, resulting in red light emission undergoing less quenching than green light; consequently, the emitted light of phosphor shifts from yellow-green to orange-red, cleverly utilizing this feature to achieve temperature visualization. Based on the fluorescence intensity ratio (I_{662 nm}/I_{543 nm}) of Ho³⁺, the relative sensitivity of the phosphor is as high as 0.46% K⁻¹ at 448 K and the repeatability is >98.3% at whole temperature range. Overall, all findings demonstrate that KMLMO: 30%Yb/1%Ho phosphor is a promising optical material for temperature sensing.

采用固相反应法制备了一系列（KMg）0.6Lu1.4(MoO4)3: Yb3+/Ho3+ (KMLMO: Yb/Ho)荧光粉。实验证明，最佳的KMLMO:30%Yb/1%Ho荧光粉是一种二维负热膨胀材料。在980 nm激发下，KMLMO: Yb/Ho荧光粉在543和662 nm处表现出明显的上转换发射峰。随着温度的升高，Ho3+的非辐射弛豫（NR1: 5I6→5I7和NR2: 5F4/5S2→5F5）增强，导致红光发射比绿光少淬灭；因此，荧光粉发出的光从黄绿色转变为橙红色，巧妙地利用这一特性来实现温度可视化。根据Ho3+的荧光强度比（I662 nm/I543 nm），该荧光粉在448 K时的相对灵敏度高达0.46% K⁻¹，在全温度范围内的重复性为98.3%。综上所述，KMLMO: 30%Yb/1%Ho荧光粉是一种很有前途的温度传感光学材料。

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引用次数: 0

Low-cost bimolecular synergistic passivation of the perovskite buried interface for the perovskite solar cell 钙钛矿太阳能电池中钙钛矿埋藏界面低成本双分子协同钝化

IF 5.7 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Bulletin

Pub Date : 2026-01-02 DOI: 10.1016/j.materresbull.2026.113989

Tao Wang , Lidan Wang , Can Wang , Yunpeng Xu , Xue Zhang , Qixin Zhuang , Xiao Li , Zisheng Su , Yaoming Xiao

The efficiency and stability of perovskite solar cells (PSCs) are influenced by various factors, among which the interface between the electron transport layer (ETL) and the perovskite (PVK) layer in n-i-p structured PSC plays a crucial role. Herein, a low-cost and environmentally friendly dual-molecule system comprising lysine and acetylsalicylic acid is employed as an interfacial modification strategy for ETL/PVK interface. This strategy effectively passivates defects of the tin dioxide (SnO₂) ETL, aligns the energy levels between ETL and PVK, and enhances the crystallinity of PVK film, thereby improving both the efficiency and stability of PSC. PSC utilizing the dual-molecule passivation achieves a power conversion efficiency (PCE) of 24.25% with enhanced stability, outperforming those with single-molecule passivation.

钙钛矿太阳能电池（PSCs）的效率和稳定性受到多种因素的影响，其中n-i-p结构的PSCs中电子传输层（ETL）和钙钛矿层（PVK）之间的界面起着至关重要的作用。本文采用赖氨酸和乙酰水杨酸组成的低成本、环保的双分子体系作为ETL/PVK界面改性策略。该策略有效钝化了二氧化锡（SnO2） ETL的缺陷，使ETL和PVK的能级趋于一致，提高了PVK薄膜的结晶度，从而提高了PSC的效率和稳定性。采用双分子钝化的PSC的功率转换效率（PCE）达到24.25%，稳定性增强，优于单分子钝化的PSC。

引用次数: 0

Study of the ReS₂-CoO/CoS₂ Heterostructure for Efficient Bifunctional Electrocatalysis 高效双功能电催化ReS₂-CoO/CoS₂异质结构的研究

IF 5.7 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Bulletin

Pub Date : 2025-12-30 DOI: 10.1016/j.materresbull.2025.113988

Dan-pu Zhao , Zhi-kun Peng , Shuai Wei , Qing-qing Pang , Qiao-yun Liu , Zhong-yi Liu

Heterogeneous interfaces are an effective strategy to modulate interfacial properties and enhance catalytic functionality. However, their dynamic evolution under reaction conditions remains elusive, hindering rational catalyst design. Herein, we report a ReS₂-CoO/CoS₂ heterostructure to investigate its structural transformation under electrocatalytic water splitting conditions, as well as to modulate its activity and stability. Electrochemical measurements reveal exceptional bifunctional catalytic activity, with overpotentials of 25 mV for HER (at 10 mA·cm⁻²) and 241 mV for OER (at 50 mA·cm⁻²). The synergistic interfacial interaction substantially enhances the kinetic processes. The integrated interface between CoO and CoS₂ on ReS₂ not only ensures intimate electronic coupling but also facilitates abundant surface defect formation, as confirmed by FTIR, XPS, and EPR analyses. In-situ Raman spectroscopy demonstrates structural robustness during HER, whereas a significant surface reconstruction occurs during the OER, in which the initial CoO/CoS₂ phase transforms into CoO/CoOOH, serving as the new active species. The catalyst achieves efficient overall water splitting performance (1.43 V at 10 mA‧cm⁻²) with sustained performance. These findings offer valuable insights into interfacial engineering strategies for the rational design of advanced electrocatalysts.

非均相界面是调节界面性质和增强催化功能的有效策略。然而，它们在反应条件下的动态演变仍然难以捉摸，这阻碍了合理的催化剂设计。本文报道了一种ReS2-CoO/CoS2异质结构，研究其在电催化水裂解条件下的结构转变，以及对其活性和稳定性的调节。电化学测量显示出特殊的双功能催化活性，HER的过电位为25 mV （10 mA·cm⁻²），OER的过电位为241 mV （50 mA·cm⁻²）。协同界面作用大大增强了动力学过程。在ReS2上，CoO和CoS2之间的集成接口不仅保证了紧密的电子耦合，而且通过FTIR， XPS和EPR分析证实了丰富的表面缺陷形成。原位拉曼光谱显示了HER过程中的结构稳稳性，而OER过程中发生了明显的表面重构，初始CoO/CoS2相转变为CoO/CoOOH，成为新的活性物质。该催化剂在10 mA·cm−2时具有高效的整体水分解性能（1.43 V），并具有持续的性能。这些发现为合理设计高级电催化剂的界面工程策略提供了有价值的见解。

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引用次数: 0

Tuning ceria-based nanomaterials: The effects of chemical potential and mineralizing agents on atmosphere-induced electrical resistance 调谐铈基纳米材料：化学势和矿化剂对大气感应电阻的影响

IF 5.7 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Bulletin

Pub Date : 2025-12-29 DOI: 10.1016/j.materresbull.2025.113987

H. Moreno , L.S.R. Rocha , G. Garcia , C. Macchi , M.A. Ponce , J.R. Sambrano , I.E. dell´Erba , A. Albuquerque , E. Longo , M.A. Ramirez , A.Z. Simões

This study explores the electrical and physicochemical properties of CeO₂ thick films by combining theoretical simulations with experimental analyses under variable gas atmospheres. The films are prepared via screen printing, using particles synthesized through the microwave-assisted hydrothermal method with KOH and NaOH at concentrations of 2 and 4 M. KOH promotes higher nucleation rates, resulting in smaller particles with greater surface areas, whereas NaOH leads to fewer nucleation events and thus larger, less agglomerated particles. This trend is supported by the observed increase in the τ₁ lifetime, which rises from approximately 202 ps (NaOH 2 M) to about 219 ps (KOH 2 M), indicating a higher concentration of oxygen vacancies in the KOH-synthesized sample. In contrast, NaOH-based powders produce densely packed particles that form compact and uniform films. Consequently, the faster response times exhibited by the KOH-synthesized samples, compared to those synthesized with NaOH, reinforce their potential for application in gas sensing devices. Overall, the chemical potential plays a critical role in influencing response times by affecting charge carrier dynamics, enhancing surface reaction rates, stabilizing temperature effects, managing defect states, and facilitating chemical interactions.

本研究通过理论模拟和实验分析相结合的方法，探讨了不同气体气氛下CeO2厚膜的电学和物理化学性质。采用微波辅助水热法在浓度为2 m和4 m的KOH和NaOH中合成颗粒，通过丝网印刷制备薄膜。KOH促进更高的成核速率，导致更小的颗粒和更大的表面积，而NaOH导致更少的成核事件，因此更大，更少团聚的颗粒。观测到的τ₁寿命的增加支持了这一趋势，从大约202 ps （NaOH 2 M）上升到大约219 ps (KOH 2 M)，表明KOH合成样品中的氧空位浓度更高。相反，naoh基粉末产生密集堆积的颗粒，形成致密和均匀的薄膜。因此，与NaOH合成的样品相比，koh合成的样品显示出更快的响应时间，这增强了它们在气敏器件中的应用潜力。总的来说，化学势通过影响载流子动力学、提高表面反应速率、稳定温度效应、管理缺陷状态和促进化学相互作用，在影响响应时间方面起着关键作用。

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引用次数: 0

Corrigendum to “Design of a S-scheme heterojunction photocatalyst of N-TiO2/CuO/GO with enhanced visible-light activity for efficient formaldehyde degradation” [Materials Research Bulletin 196 (2026) 113925] “设计具有增强可见光活性的N-TiO2/CuO/GO的s型异质结光催化剂用于有效降解甲醛”的勘误表[材料研究通报196 (2026)113925]

IF 5.7 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Bulletin

Pub Date : 2025-12-29 DOI: 10.1016/j.materresbull.2025.113969

Zhexi Shen , Jiayi Shi , Longlong Xiao , Boqu Yu , Xiaoxin Chen , Chaohong Zhang

引用次数: 0

Insights into electrochemical behavior and cathodic nucleation of zirconium in the NaCl-KCl melt NaCl-KCl熔体中锆的电化学行为和阴极成核研究

IF 5.7 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Bulletin

Pub Date : 2025-12-29 DOI: 10.1016/j.materresbull.2025.113986

Peizhu Mao , Zijian Wang , Zepeng Lv , Shaolong Li , Jilin He , Jianxun Song

This study investigates the nucleation of zirconium during electrodeposition in molten salts. Electrochemical analysis confirmed Zr⁴⁺ reduction on Mo proceeds via two reversible, diffusion-controlled steps: Zr⁴⁺ + 2e⁻ → Zr²⁺ and Zr²⁺ + 2e⁻ → Zr, with diffusion coefficients of 1.64 × 10⁻⁵ cm² s⁻¹ and 9.19 × 10⁻⁵ cm² s⁻¹ for Zr(IV) and Zr(II), respectively, at 750 °C. Chronoamperometry revealed that nucleation transitions from instantaneous to progressive with increasing temperature or overpotential. A key finding is that a high F⁻/Zr⁴⁺ molar ratio of 16:1 stabilizes instantaneous nucleation across a wide overpotential range (50–100 mV), suppressing the transition to progressive nucleation. This study has conducted a comprehensive and systematic in-depth research and analysis on the nucleation process of zirconium ions, laying a solid foundation for precisely controlling the nucleation conditions.

本文研究了熔盐电沉积过程中锆的成核过程。电化学分析证实Zr4+在Mo上的还原通过两个可逆的扩散控制步骤：Zr4+ + 2e−→Zr2+和Zr2+ + 2e−→Zr，在750℃下Zr（IV）和Zr（II）的扩散系数分别为1.64 × 10−5 cm2 s−1和9.19 × 10−5 cm2 s−1。随温度或过电位的升高，成核由瞬时转变为渐进。一个关键的发现是，高的F−/Zr4+摩尔比为16:1，在很宽的过电位范围内（50-100 mV）稳定瞬时成核，抑制向渐进成核的转变。本研究对锆离子的成核过程进行了全面、系统的深入研究和分析，为精确控制成核条件奠定了坚实的基础。

{"title":"Insights into electrochemical behavior and cathodic nucleation of zirconium in the NaCl-KCl melt","authors":"Peizhu Mao , Zijian Wang , Zepeng Lv , Shaolong Li , Jilin He , Jianxun Song","doi":"10.1016/j.materresbull.2025.113986","DOIUrl":"10.1016/j.materresbull.2025.113986","url":null,"abstract":"<div><div>This study investigates the nucleation of zirconium during electrodeposition in molten salts. Electrochemical analysis confirmed Zr<sup>4+</sup> reduction on Mo proceeds via two reversible, diffusion-controlled steps: Zr<sup>4+</sup> + 2e<sup>−</sup> → Zr<sup>2+</sup> and Zr<sup>2+</sup> + 2e<sup>−</sup> → Zr, with diffusion coefficients of 1.64 × 10<sup>−5</sup> cm<sup>2</sup> s<sup>−1</sup> and 9.19 × 10<sup>−5</sup> cm<sup>2</sup> s<sup>−1</sup> for Zr(IV) and Zr(II), respectively, at 750 °C. Chronoamperometry revealed that nucleation transitions from instantaneous to progressive with increasing temperature or overpotential. A key finding is that a high F<sup>−</sup>/Zr<sup>4+</sup> molar ratio of 16:1 stabilizes instantaneous nucleation across a wide overpotential range (50–100 mV), suppressing the transition to progressive nucleation. This study has conducted a comprehensive and systematic in-depth research and analysis on the nucleation process of zirconium ions, laying a solid foundation for precisely controlling the nucleation conditions.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"197 ","pages":"Article 113986"},"PeriodicalIF":5.7,"publicationDate":"2025-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Eco-friendly cotton fabric coloration using Ni@Ti3C2 MXene for reactive dyeing wastewater degradation 利用Ni@Ti3C2 MXene对环保型棉织物染色废水进行活性降解

IF 5.7 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Bulletin

Pub Date : 2025-12-29 DOI: 10.1016/j.materresbull.2025.113984

Xinqi Zhang , Bingxin Wang , Dawu Shu , Wanxin Li , Fangfang An , yueyong Dong

Dyeing wastewater, a common type of wastewater in the textile industry, has a complex composition, deep color, and poor degradability. In this work, hydrothermal method was employed to synthesize Ni@MXene catalysts, and their performance in the Ni@MXene/PMS (peroxymonosulfate) system was investigated. A mixed system containing 7.5 g/L PMS and 0.2 g/L Ni@MXene was stirred for 60 min at 25 °C and pH 6, achieving a degradation percentage of 93.66%, ‧OH are the primary active species in this catalytic system, and the anion has minimal interference with the degradation process. The degradation percentage of the Ni@MXene catalyst can still reach 88.23 % after 3 times of recycling, and the degraded dyeing wastewater can be used for dyeing cotton fabrics. In conclusion, the catalyst demonstrates exhibits significant potential for dye degradation and wastewater recycling, providing valuable insights for energy conservation and emission reduction.

印染废水是纺织工业中常见的一类废水，其成分复杂，颜色深，可降解性差。本文采用水热法合成Ni@MXene催化剂，并对其在Ni@MXene/PMS（过氧单硫酸盐）体系中的性能进行了研究。在25℃、pH 6条件下，加入7.5 g/L PMS和0.2 g/L Ni@MXene的混合体系搅拌60 min，降解率达到93.66%，其中OH为主要活性物质，阴离子对降解过程的干扰最小。Ni@MXene催化剂回收3次后降解率仍可达88.23%，降解后的印染废水可用于棉织物染色。综上所述，该催化剂在染料降解和废水循环利用方面具有重要的潜力，为节能减排提供了有价值的见解。

引用次数: 0

Tailoring photoluminescent properties through host modification and charge compensation in Dy3+ doped CaMg3(SO4)4 phosphor 在Dy3+掺杂的CaMg3(SO4)4荧光粉中，通过宿主修饰和电荷补偿来调整光致发光性能

IF 5.7 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Bulletin

Pub Date : 2025-12-28 DOI: 10.1016/j.materresbull.2025.113985

M.H. Taywade , Yatish R. Parauha , N.S. Dhoble , S.J. Dhoble

Phosphor materials are commonly used in the design of high-performance solid-state lighting systems. A variety of Dy³⁺-doped CaMg₃(SO₄)₄ phosphors were synthesized using high temperature solid-state reaction technique, with co-doping of tungstate [WO₄]^2- and alkali metal ions (Na⁺, K⁺, Li⁺) to improve their photoluminescence performance. Structural study proved phase purity and morphological examinations demonstrated uniform grain dispersion. The incorporation of [WO₄]^2- led to extensive excitation and emission bands through ligand-to-metal charge transfer (LMCT), effectively producing Dy³⁺ emissions. Co-doping with alkali metal ions served as effective charge compensators, greatly increasing emission intensity. Under 353 nm excitation, the phosphors produced brilliant white light with CIE coordinates in the near-white area and favorable correlated color temperature (CCT) values. These findings highlight the potential of the developed phosphors for usage in energy-efficient solid-state lighting and display systems.

荧光粉材料通常用于高性能固态照明系统的设计。采用高温固相反应技术合成了多种Dy3+掺杂CaMg3(SO4)4荧光粉，钨酸盐[WO4]2-与碱金属离子（Na+、K+、Li+）共掺杂，提高了其光致发光性能。结构研究证明相纯度和形态检查表明均匀的颗粒分散。[WO4]2-的掺入通过配体到金属的电荷转移（LMCT）导致了广泛的激发和发射带，有效地产生了Dy3+发射。与碱金属离子共掺杂作为有效的电荷补偿剂，大大提高了发射强度。在353nm激发下，荧光粉产生明亮的白光，CIE坐标在近白区域，相关色温（CCT）值良好。这些发现突出了开发的荧光粉在节能固态照明和显示系统中的应用潜力。

{"title":"Tailoring photoluminescent properties through host modification and charge compensation in Dy3+ doped CaMg3(SO4)4 phosphor","authors":"M.H. Taywade , Yatish R. Parauha , N.S. Dhoble , S.J. Dhoble","doi":"10.1016/j.materresbull.2025.113985","DOIUrl":"10.1016/j.materresbull.2025.113985","url":null,"abstract":"<div><div>Phosphor materials are commonly used in the design of high-performance solid-state lighting systems. A variety of Dy<sup>3+</sup>-doped CaMg<sub>3</sub>(SO<sub>4</sub>)<sub>4</sub> phosphors were synthesized using high temperature solid-state reaction technique, with co-doping of tungstate [WO<sub>4</sub>]<sup>2-</sup> and alkali metal ions (Na<sup>+</sup>, <em>K</em><sup>+</sup>, Li<sup>+</sup>) to improve their photoluminescence performance. Structural study proved phase purity and morphological examinations demonstrated uniform grain dispersion. The incorporation of [WO<sub>4</sub>]<sup>2-</sup> led to extensive excitation and emission bands through ligand-to-metal charge transfer (LMCT), effectively producing Dy<sup>3+</sup> emissions. Co-doping with alkali metal ions served as effective charge compensators, greatly increasing emission intensity. Under 353 nm excitation, the phosphors produced brilliant white light with CIE coordinates in the near-white area and favorable correlated color temperature (CCT) values. These findings highlight the potential of the developed phosphors for usage in energy-efficient solid-state lighting and display systems.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"197 ","pages":"Article 113985"},"PeriodicalIF":5.7,"publicationDate":"2025-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Statistical physics, mechanisms, and reuse potential of an adsorbent from volcanic rock powder towards metals and dyes 火山岩粉末吸附剂对金属和染料吸附的统计物理、机理和再利用潜力

IF 5.7 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Bulletin

Pub Date : 2025-12-28 DOI: 10.1016/j.materresbull.2025.113983

Ana Carolina Ferreira Piazzi Fuhr , Jandira Leichtweis , Diovani Leindecker Rossato , Fernando Machado Machado , Salah Knani , Luis Felipe Oliveira Silva , Tito J. Crissien , Guilherme Luiz Dotto

In this study, an integrated approach was employed that combines experimental adsorption techniques with a theoretical analysis based on statistical physics models, allowing a structurally detailed interpretation of the interactions between the proposed adsorbent and the different classes of pollutants, as metals (Ag⁺_(aq) and Cu²⁺_(aq)), and organic dyes (acid green 16 and acid red 97). Maximum adsorption capacities reached 70.81 mg g⁻¹ for Ag⁺, 71.93 mg g⁻¹ for Cu²⁺, 197.01 mg g⁻¹ for acid green 16, and 194.33 mg g⁻¹ for acid red 97, confirming the material's high uptake potential. Adsorption energies confirmed physical adsorption mechanisms. The material achieved removal efficiencies of over 90% for all contaminants and retained more than 85% efficiency after 5 regeneration cycles. These findings demonstrate the potential of statistical physics models for the detailed characterization of molecular interactions in adsorption systems for metals and dyes, contributing to understanding the removal mechanisms of these emerging contaminants.

在这项研究中，采用了一种综合方法，将实验吸附技术与基于统计物理模型的理论分析相结合，允许对所提出的吸附剂与不同类别的污染物(如金属(Ag + （aq)和Cu + (aq)）和有机染料（酸绿16和酸红97）之间的相互作用进行结构上的详细解释。Ag +的最大吸附量为70.81 mg g⁻¹，Cu 2 +的最大吸附量为71.93 mg g⁻¹，酸绿16的最大吸附量为197.01 mg g⁻¹，酸红97的最大吸附量为194.33 mg g⁻¹，证实了该材料的高吸收潜力。吸附能证实了物理吸附机制。该材料对所有污染物的去除效率超过90%，并在5次再生循环后保持85%以上的效率。这些发现证明了统计物理模型在金属和染料吸附系统中分子相互作用的详细表征方面的潜力，有助于理解这些新兴污染物的去除机制。

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引用次数: 0

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