Inorganic Chemistry Communications最新文献

SnO2 /BN/g-C3N4 2D/2D heterojunctions: An eco-friendly engineering strategy for effective removal of emerging contaminants SnO2 /BN/g-C3N4 2D/2D异质结：有效去除新兴污染物的环保工程策略

IF 5.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications

Pub Date : 2026-01-13 DOI: 10.1016/j.inoche.2026.116182

Baishali Bhattacharjee, Md. Ahmaruzzaman

Global water contamination is surging, creating a critical environmental challenge that necessitates urgent research into novel pollutant removal techniques. This study explores the synthesis of a SnO₂/boron nitride/g-C₃N₄ (SnO₂/BN/g-C₃N₄) nanocomposite using an environmentally friendly precipitation technique. The synthesis employed Aloe vera leaf extract as a key component. Furthermore, the photocatalytic activity of this material was evaluated for the photocatalytic degradation of Crystal Violet (CV) and Omeprazole (OMP), examining the influence of diverse experimental factors, including the presence of various organic and inorganic ions, as well as different water matrices. SnO₂ immobilization on BN/g-C₃N₄ was employed to enhance photocatalytic activity by inhibiting electron-hole recombination. The BET specific surface area analysis showed that the SnO₂/BN/g-C₃N₄ exhibited a specific surface area of 53.644 m²/g. The SnO₂/BN/g-C₃N₄ photocatalyst, after 50 min of solar illumination, showed high degradation efficiencies of 95.24% for CV and 94.55% for OMP. These results were obtained under optimal conditions: a hydrogen peroxide concentration of 0.3 mL/50 mL for CV and 0.4 mL/50 mL for OMP, a catalyst dosage of 0.1 g/L for CV and 0.14 g/L for OMP, and contaminant concentrations of 10 mg/L and 30 mg/L for CV and OMP respectively. This work highlights the importance of SnO₂ photocatalysts in the degradation of organic contaminants through solar-powered advanced oxidation. XPS-VB analysis and scavenger experiments indicated that superoxide (^•O₂⁻) radicals are integral to the SnO₂/BN/g-C₃N₄ facilitated removal of CV and OMP. The degradation by-products were identified using HR-LCMS analysis. Analysis revealed that the improved photodegradation performance stems from the creation of a Z-scheme heterojunction. Boron nitride present in the SnO₂/BN/g-C₃N₄ nanocomposite function as a bridge facilitating electron transfer, thereby suppressing charge recombination.

全球水污染正在激增，造成了严峻的环境挑战，迫切需要研究新的污染物去除技术。本研究探索了利用环境友好沉淀法合成SnO2/氮化硼/g-C3N4 （SnO2/BN/g-C3N4）纳米复合材料。该合成以芦荟叶提取物为关键成分。此外，研究了该材料光催化降解结晶紫（CV）和奥美拉唑（OMP）的活性，考察了各种实验因素的影响，包括各种有机和无机离子的存在，以及不同的水基质。在BN/g-C3N4上固定SnO2，通过抑制电子-空穴复合来提高光催化活性。BET比表面积分析表明，SnO2/BN/g- c3n4的比表面积为53.644 m2/g。SnO2/BN/g-C3N4光催化剂在光照50 min后，对CV和OMP的降解效率分别达到95.24%和94.55%。结果表明：CV和OMP的过氧化氢浓度分别为0.3 mL/50 mL和0.4 mL/50 mL， CV和OMP的催化剂用量分别为0.1 g/L和0.14 g/L， CV和OMP的污染物浓度分别为10 mg/L和30 mg/L。这项工作强调了SnO2光催化剂在通过太阳能高级氧化降解有机污染物中的重要性。XPS-VB分析和清除剂实验表明，SnO2/BN/g-C3N4的超氧化物（•O2−）自由基有助于去除CV和OMP。利用HR-LCMS对降解副产物进行了鉴定。分析表明，光降解性能的提高源于z型异质结的形成。氮化硼存在于SnO2/BN/g-C3N4纳米复合材料中，作为促进电子转移的桥梁，从而抑制电荷复合。

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引用次数: 0

Constructing Bi2MoO6/ZnO composite with Z-scheme charge dynamics for solar photodegradation of enrofloxacin and antibacterial trait 构建具有Z-scheme电荷动力学的Bi2MoO6/ZnO复合材料，用于太阳能光降解恩诺沙星及抗菌性能

IF 5.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications

Pub Date : 2026-01-12 DOI: 10.1016/j.inoche.2026.116166

Qinzheng Wei , Sze-Mun Lam , Jin-Chung Sin , Huanming Liu , Jinpeng Su , Kun Dong , Haixiang Li

Multifunctional catalyst surfaces for organic photodegradation and antibacterial applications are generally in high requirements, but they are facing towering challenges in light harnessing capability and charge transfer. In this work, a plate-like Bi₂MoO₆ loaded onto prism-like ZnO (BZ) composite was devised via a two-step precipitation-solvothermal technique to surmount above lapses. Comprehensive material characterization using XRD, FESEM, TEM, XPS, FTIR, UV–vis DRS, PL and photoelectrochemical measurements witnessed successful material compounding and crucial structural as well as distinct electrochemical traits. When fed with enrofloxacin (ENR) as a targeted aquaculture pollutant, the BZ composite exhibited high photodegradation activity (98.2%) under solar light, which was 1.4 and 2.6 times those of individual Bi₂MoO₆ and ZnO after 180 min solar irradiation, respectively. Moreover, the BZ composite efficiently realized photocatalytic inactivation of Escherichia coli and Staphylococcus aureus under solar light irradiation. The bacterial colony completely inactivated after introducing the binary composite within 180 min. The remarkable enhancement was due to both incorporation of abundant site Bi₂MoO₆ and the formation of BZ Z-scheme system which better improved light capturing behaviour and afforded the effective charge segregation for the incremented reactive oxygen species yield (e.g. superoxide anion radical and photogenerated hole). Additionally, LC-MS and T.E.S.T outcomes further validated the efficient ENR photodegradation and a substantial reduction in the toxicity of intermediate products. The relatively convenient repeatability trait and eminent photoactivity performance of BZ were favorable for actual wastewater treatment and bacterial disinfection applications.

多功能催化剂表面在有机光降解和抗菌方面的应用通常要求很高，但在光利用能力和电荷转移方面面临着巨大的挑战。在这项工作中，通过两步沉淀-溶剂热技术，设计了一种片状Bi2MoO6加载到棱镜状ZnO （BZ）复合材料上，以克服上述缺陷。通过XRD， FESEM， TEM， XPS， FTIR, UV-vis DRS， PL和光电化学测量对材料进行了全面的表征，证明了材料的成功复合以及重要的结构和独特的电化学特性。以恩诺沙星（ENR）作为目标水产养殖污染物，BZ复合材料在太阳光照下的光降解活性高达98.2%，分别是照射180 min后Bi2MoO6和ZnO的1.4倍和2.6倍。此外，BZ复合材料在太阳光照射下有效实现了大肠杆菌和金黄色葡萄球菌的光催化失活。引入二元复合物后180min内菌落完全失活。这种显著的增强是由于丰富的Bi2MoO6位点的加入和BZ - Z-scheme体系的形成更好地改善了光捕获行为，并为增加活性氧的产率（如超氧阴离子自由基和光生空穴）提供了有效的电荷隔离。此外，LC-MS和T.E.S.T结果进一步验证了ENR的有效光降解和中间产物毒性的显著降低。BZ相对方便的重复性特性和优异的光活性性能有利于实际废水处理和细菌消毒应用。

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引用次数: 0

Synergistic nanofabrication of one-dimensional porous NiCo2S4 nanofibers for ultrahigh-performance supercapacitors 用于高性能超级电容器的一维多孔NiCo2S4纳米纤维的协同纳米加工

IF 5.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications

Pub Date : 2026-01-12 DOI: 10.1016/j.inoche.2026.116189

Wenjie Liu, Fen Qiao

Nickel cobalt sulfide (NiCo₂S₄) has attracted considerable interest as a promising electrode material for supercapacitors due to its high electrochemical activity and excellent electrical conductivity. However, its practical application is often hampered by structural instability, limited porosity, and slow ion transport kinetics. In this work, one-dimensional (1D) porous NiCo₂S₄ nanofibers (NFs) are fabricated through a synergistic approach combining electrospinning, calcination, and carefully controlled hydrothermal sulfidation. The obtained NiCo₂S₄ NFs feature a continuous fibrous architecture with tailored porosity and high aspect ratio, which collectively enhance ion diffusion, expose abundant electroactive sites, and improve structural integrity. As a supercapacitor electrode, the optimized NiCo₂S₄ NFs deliver a high specific capacity of 227.2 mAh g⁻¹ (1817.6 F g⁻¹) at 1 A g⁻¹, excellent rate performance (68% capacity retention at 20 A g⁻¹), and long-term cycling stability (70.2% retention after 5000 cycles). Furthermore, an asymmetric supercapacitor assembled with NiCo₂S₄ NFs as the positive electrode and activated carbon as the negative electrode achieves an energy density of 44.6 Wh kg⁻¹ at a power density of 1033.2 W kg⁻¹, along with outstanding cycling durability (86.3% capacity retention over 10,000 cycles). This work underscores the great potential of rationally designed 1D porous nanostructures in enabling high-performance energy storage systems for next-generation applications.

硫化镍钴（NiCo2S4）具有较高的电化学活性和优异的导电性，是一种很有前途的超级电容器电极材料。然而，它的实际应用往往受到结构不稳定、孔隙度有限和离子传输动力学缓慢的阻碍。在这项工作中，通过静电纺丝、煅烧和精心控制的水热硫化相结合的协同方法制备了一维（1D）多孔NiCo2S4纳米纤维（NFs）。获得的NiCo2S4 NFs具有连续的纤维结构，具有定制的孔隙率和高宽高比，共同增强了离子扩散，暴露了丰富的电活性位点，并提高了结构完整性。作为超级电容器电极，优化后的NiCo2S4 NFs在1 a g−1下具有227.2 mAh g−1 （1817.6 F g−1）的高比容量，在20 a g−1下具有68%的容量保留率，并且在5000次循环后具有70.2%的长期稳定性。此外，以NiCo2S4 NFs为正极，活性炭为负极组装的非对称超级电容器在1033.2 W kg - 1的功率密度下实现了44.6 Wh kg - 1的能量密度，并具有出色的循环耐久性（超过10,000次循环的容量保持率为86.3%）。这项工作强调了合理设计的一维多孔纳米结构在实现下一代高性能储能系统应用方面的巨大潜力。

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引用次数: 0

Potential–controlled deposition of MgF2 film on AZ31 Mg alloy for enhanced corrosion resistance and biocompatibility 电位控制下MgF2膜在AZ31镁合金上的沉积以增强其耐蚀性和生物相容性

IF 5.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications

Pub Date : 2026-01-12 DOI: 10.1016/j.inoche.2026.116188

Yue Zhang , Yu Zhang , Yan-zhe Yang , Li-Ping Wu

A high–quality magnesium fluoride (MgF₂) film was fabricated on AZ31 magnesium alloy via a novel potentiostatic deposition technique in a mildly alkaline NH₄F solution to enhance its corrosion resistance and biocompatibility. This study systematically established the applied potential as the critical parameter governing the film's formation mechanism, microstructure and functional properties. The optimized film, deposited at a specific negative potential, exhibited superior performance characterized by a dense, crystalline morphology, the highest fluorine content and the greatest thickness. Electrochemical tests in simulated body fluid revealed a polarization resistance nearly two times higher and a corrosion current density two orders of magnitude lower than that of the bare alloy, alongside a significantly reduced hydrogen evolution rate. Furthermore, this optimized film enhanced surface hydrophilicity and markedly improved the viability and proliferation of L929 fibroblast cells. This work establishes potentiostatic deposition in NH₄F solution as a highly promising one–step surface engineering strategy, offering superior control over the formation of protective and biocompatible MgF₂ films compared to traditional conversion coatings.

采用新型恒电位沉积技术在AZ31镁合金表面制备了高质量的氟化镁（MgF2）膜，提高了其耐腐蚀性和生物相容性。本研究系统地确立了应用电位作为控制薄膜形成机理、微观结构和功能性能的关键参数。优化后的薄膜在特定负电位下沉积，具有致密的结晶形态、最高的氟含量和最大的厚度等优异性能。在模拟体液中的电化学测试表明，极化电阻比裸合金高近两倍，腐蚀电流密度比裸合金低两个数量级，同时显着降低了析氢速率。此外，优化后的膜增强了表面亲水性，显著提高了L929成纤维细胞的活力和增殖能力。这项工作确立了在NH4F溶液中进行恒电位沉积是一种非常有前途的一步表面工程策略，与传统转化涂层相比，它可以更好地控制保护性和生物相容性MgF2膜的形成。

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引用次数: 0

Phthalocyanine based MOF/Bi2WO6 composite for photocatalytic degradation of dye and antibiotics 酞菁基MOF/Bi2WO6复合材料光催化降解染料和抗生素

IF 5.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications

Pub Date : 2026-01-12 DOI: 10.1016/j.inoche.2026.116184

Yanbing Yin , Shuang Tan , Zhou Wang , Xiaohui Li , Jun Cao , Xifeng He , Xue Li

Phthalocyanines and porphyrins are macrocyclic conjugated compounds with similar structures, often forming porous crystalline metal-organic frameworks (MOFs) via coordination bonds. Compared to porphyrin-based MOFs, phthalocyanine-based CoTcPc-MOF shows superior photothermal stability. Herein, CoTcPc-MOF/Bi₂WO₆ composites with varied mass ratios were synthesized via solvothermal method. Their photocatalytic performance was evaluated by degrading rhodamine B (RhB) and ofloxacin (OFX) under visible light. Factors including solution initial concentration, composite ratio, and catalyst dosage were investigated. Results reveal that CoTcPc-MOF/Bi₂WO₆ (1,0.20) and (1,0.40) composites achieve the highest degradation efficiencies (96% for RhB and 92% for OFX) within 150 min, outperforming their monomers. This is attributed to the synergistic effect between CoTcPc-MOF and Bi₂WO₆, which promotes photogenerated carrier separation, reduces recombination and make more electrons and holes reach the surface of the photocatalyst to participate in the reaction, Such synergy greatly improves photocatalytic efficiency, supporting the application of photocatalysis in environmental purification.

酞菁和卟啉是具有相似结构的大环共轭化合物，常通过配位键形成多孔晶体金属有机框架（MOFs）。与基于卟啉的mof相比，酞菁基cotcp - mof具有更好的光热稳定性。本文采用溶剂热法合成了不同质量比的CoTcPc-MOF/Bi2WO6复合材料。通过在可见光下降解罗丹明B （RhB）和氧氟沙星（OFX）来评价它们的光催化性能。考察了溶液初始浓度、复合配比、催化剂用量等因素。结果表明，CoTcPc-MOF/Bi2WO6（1,0.20）和（1,0.40）复合材料在150 min内的降解效率最高（对RhB的降解效率为96%，对OFX的降解效率为92%），优于单体。这是由于cotcp - mof与Bi2WO6之间的协同作用，促进光生载流子分离，减少复合，使更多的电子和空穴到达光催化剂表面参与反应，这种协同作用大大提高了光催化效率，支持了光催化在环境净化中的应用。

{"title":"Phthalocyanine based MOF/Bi2WO6 composite for photocatalytic degradation of dye and antibiotics","authors":"Yanbing Yin , Shuang Tan , Zhou Wang , Xiaohui Li , Jun Cao , Xifeng He , Xue Li","doi":"10.1016/j.inoche.2026.116184","DOIUrl":"10.1016/j.inoche.2026.116184","url":null,"abstract":"<div><div>Phthalocyanines and porphyrins are macrocyclic conjugated compounds with similar structures, often forming porous crystalline metal-organic frameworks (MOFs) via coordination bonds. Compared to porphyrin-based MOFs, phthalocyanine-based CoTcPc-MOF shows superior photothermal stability. Herein, CoTcPc-MOF/Bi2WO6 composites with varied mass ratios were synthesized via solvothermal method. Their photocatalytic performance was evaluated by degrading rhodamine B (RhB) and ofloxacin (OFX) under visible light. Factors including solution initial concentration, composite ratio, and catalyst dosage were investigated. Results reveal that CoTcPc-MOF/Bi2WO6 (1,0.20) and (1,0.40) composites achieve the highest degradation efficiencies (96% for RhB and 92% for OFX) within 150 min, outperforming their monomers. This is attributed to the synergistic effect between CoTcPc-MOF and Bi2WO6, which promotes photogenerated carrier separation, reduces recombination and make more electrons and holes reach the surface of the photocatalyst to participate in the reaction, Such synergy greatly improves photocatalytic efficiency, supporting the application of photocatalysis in environmental purification.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116184"},"PeriodicalIF":5.4,"publicationDate":"2026-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975151","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

Fluorene-appended Schiff bases for selective V(III) and Ru(III) recognition: Single-crystal, UV–vis, anticancer potential and molecular docking insights 选择性识别V（III）和Ru（III）的芴附加席夫碱：单晶，紫外-可见，抗癌潜力和分子对接见解

IF 5.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications

Pub Date : 2026-01-11 DOI: 10.1016/j.inoche.2026.116150

Gurjaspreet Singh , Karampreet Kaur , Harshbir Kaur , Anurag Dalal , Ridhi , Madhu Preet Kaur , Baljinder Singh , Shipra Goyal , Manraj Singh

Two new fluorene appended Schiff bases designated IK and DO were synthesized and characterized to tap the potential applications in terms of structure, sensing properties, and use in biology. IK synthesized quickly in ethanol with complete reflux in three hours to obtain highly pure stable crystals. Structure was confirmed by single-crystal X-Ray diffraction with CCDC no. 2405320. The Schiff base DO and its V(III) & Ru(III) complexes synthesized successfully with a simplest solution phase method. Characteristic results with UV–Vis spectra indicate strong binding sites with sensitivity with which sensitivity has been determined to be 0.183 μM with R² = 0.9993 with V(III); R² = 0.9968 with LOD 21.619 μM with Ru(III), respectively. The Schiff base DO exhibited significant cytotoxic activity against HeLa cancer cells in an MTT assay, demonstrating its potential as a promising anticancer lead. Molecular docking studies revealed strong binding affinities with multiple cancer-related protein targets, including 6VWW (−9.17 kcal/mol), 4UUN (−10.06 kcal/mol), 1BXW (−9.55 kcal/mol), and 1L8A (−9.43 kcal/mol), indicating favorable ligand–protein interactions relevant to anticancer mechanisms. Additionally, DO showed notable binding with E. coli pyruvate dehydrogenase (1RP7, −9.55 kcal/mol), suggesting possible antibacterial relevance. Collectively, the biological and computational findings establish DO as a multifunctional molecule with pronounced anticancer activity and biologically significant protein interactions, warranting further mechanistic and in vivo studies.

合成了两种新的含氟席夫碱，分别命名为IK和DO，并对其进行了表征，以挖掘其在结构、传感性能和生物学应用方面的潜在应用前景。IK在乙醇中快速合成，完全回流在三小时内获得高纯度稳定的晶体。单晶x射线衍射证实了结构。2405320. 用最简单液相法成功合成了希夫碱DO及其V(III) & Ru（III）配合物。紫外可见光谱的特征结果表明，其结合位点较强，灵敏度为0.183 μM，对V（III）的灵敏度R2 = 0.9993；R2 = 0.9968， LOD为21.619 μM；在MTT试验中，希夫碱DO对HeLa癌细胞显示出显著的细胞毒活性，证明了其作为抗癌先导物的潜力。分子对接研究显示，该蛋白与多种癌症相关蛋白靶点具有较强的结合亲和力，包括6VWW （- 9.17 kcal/mol）、4UUN （- 10.06 kcal/mol）、1BXW （- 9.55 kcal/mol）和1L8A (- 9.43 kcal/mol)，表明其与抗癌机制相关的良好配体-蛋白相互作用。此外，DO与大肠杆菌丙酮酸脱氢酶显著结合（1RP7,−9.55 kcal/mol），提示可能与抗菌相关。总的来说，生物学和计算研究结果表明，DO是一种多功能分子，具有明显的抗癌活性和生物学上重要的蛋白质相互作用，需要进一步的机制和体内研究。

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引用次数: 0

Ca6Ln12O9(BO3)10 (Ln = La-Gd) - new members of NLO borates family Ca6Ln12O9(BO3)10 (Ln = La-Gd) - NLO硼酸盐家族新成员

IF 5.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications

Pub Date : 2026-01-11 DOI: 10.1016/j.inoche.2026.116177

M.G. Krzhizhanovskaya , G.S. Sizov , A.V. Povolotskiy , V.L. Ugolkov , E.S. Sukharzhevskaya , N.S. Vlasenko , S.K. Filatov , R.S. Bubnova

A new family of non-linear optical (NLO) oxoborates, Ca₆Ln₁₂O₉(BO₃)₁₀ (Ln = La, Pr, Nd, Sm, Eu, Gd), was prepared by high-temperature solid state reaction synthesis. The crystal structures were successfully solved from single crystal X-ray diffraction (XRD) data within non-centrosymmetric trigonal model (R3c, Z = 6, a = 15.5930 (2), c = 25.3279 (5) Å, V = 5333.21 (18) Å³ for La; a = 15.2542 (4), c = 24.1637 (8) Å, V = 4869.4 (3) Å³ for Gd). The crystal structure comprises layers of (Ln,Ca)O₇, (Ln,Ca)O₈ and (Ln,Ca)O₉ polyhedra and BO₃ triangles located in infinite channels. The structure can alternatively be described as a framework of oxocentered O(Ln,Ca)₄ distorted tetrahedra with isolated triangles filled the channels. The crystal structure can also be solved within the non-centrosymmetrical hexagonal (P-62c) model with a half of BO₃ triangles showing disorder and the unit cell volume of about 9 times less than that of the R3c model; however the weak super structure reflections reliably proved the ordered R3c construction. Thermal deformations and phase stability were studied by high-temperature powder X-ray diffraction (HTPXRD) in the temperature range of 30–1200 °C. The compounds are thermally stable up to about 1200 °C, above 1000 °C the superstructure reflections disappear that indicate the process of high-temperature reversible order-disorder transformation (R3c ↔ P-62c). Volume thermal expansion coefficient (TEC) increases slightly from 27.8 (at 25 °C for Gd) to 31.1 × 10⁻⁶ °C⁻¹ (La) whereas the melting temperature decreases clearly from 1306 (Gd) down to 1198 °C (La) which reflects the general tendency of decreasing the strength properties with increasing the Ln radii. The anisotropy of thermal expansion is caused by the preferred orientation of both (Ln,Ca)-O layers and BO₃ triangles located perpendicular to the [001] direction. Both volume expansion and anisotropy rise with temperature due to the increase of atomic thermal vibrations. The intensity of the second harmonic generation (SHG) exhibits a monotonic increase across the lanthanide series from Pr to Gd, correlating with the atomic number of the Ln cation. The optical band gap for this series varies between 3.8 eV for the Eu-containing compound and 6.0 eV for the Gd-containing compound.

采用高温固相反应法制备了一类新的非线性光学（NLO）氧硼酸盐Ca6Ln12O9(BO3)10 （Ln = La, Pr, Nd, Sm, Eu, Gd）。在非中心对称三角模型(R3c, Z = 6, a = 15.5930 (2), c = 25.3279 （5) Å， V = 5333.21 （18） Å3）下，利用单晶x射线衍射（XRD）数据成功求解了La的晶体结构；= 15.2542 (4), c = 24.1637 (8), V = 4869.4 (3) A3 Gd)。晶体结构包括（Ln,Ca）O7, (Ln,Ca)O8和（Ln,Ca）O9多面体和BO3三角形层，它们位于无限通道中。该结构可以被描述为氧中心的O(Ln,Ca)4扭曲四面体的框架，孤立的三角形填充了通道。晶体结构也可以在非中心对称的六边形（P-62c）模型内求解，其中BO3三角形的一半显示无序，单位胞体积比R3c模型小约9倍；上层结构的弱反射可靠地证明了R3c结构是有序的。采用高温粉末x射线衍射（HTPXRD）研究了材料在30 ~ 1200℃范围内的热变形和相稳定性。这些化合物在1200℃以下是热稳定的，高于1000℃时上层结构反射消失，这表明有高温可逆有序-无序转化过程（R3c↔P-62c）。体积热膨胀系数（TEC）从27.8 （Gd = 25℃）上升到31.1 × 10−6°C−1 (La)，而熔化温度从1306 （Gd = 1306）下降到1198°C (La)，反映了随着Ln半径的增大，强度性能下降的总体趋势。热膨胀的各向异性是由垂直于[001]方向的(Ln,Ca)-O层和BO3三角形的优先取向引起的。由于原子热振动的增加，体积膨胀和各向异性都随着温度的升高而升高。二次谐波产生（SHG）的强度在从Pr到Gd的镧系系中呈单调增长，与Ln阳离子的原子序数相关。该系列的光学带隙在含eu化合物的3.8 eV和含gd化合物的6.0 eV之间变化。

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引用次数: 0

Study on the photodetection properties of Cu-doped MoS2 thin films grown by room-temperature magnetron sputtering for optoelectronic devices 光电器件用室温磁控溅射生长cu掺杂MoS2薄膜的光探测性能研究

IF 5.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications

Pub Date : 2026-01-11 DOI: 10.1016/j.inoche.2026.116157

Kholik Hidayatullah , Aljufri Hadju , Indris S. Sianturi , Muhammad K. Mahardhika , Charlie Ofiyen , Idawati Supu , Resti Marlina , Yudi Darma

This study aims to investigate the photodetection properties of Cu-doped MoS₂ thin films for optoelectronic devices. Pristine MoS₂ and Cu-doped MoS₂ thin films were grown using the room-temperature DC unbalanced magnetron sputtering method. Scanning electron microscopy revealed a morphological change from flakes to denser and more uniform particles. X-ray diffraction spectrum indicated the formation of 2H-MoS₂ structure, diffraction peaks shifted to smaller angles, and an increase in the interlayer distance from 5.89 Å to 5.99 Å, suggesting Cu intercalation between MoS₂ layers. Raman spectroscopy confirmed the blueshift of

A_{1 g}

vibrational mode and the redshift of

E_{2 g}^{1}

vibrational mode, with an increase in the

Δ k

value of 28.39 cm⁻¹, confirming the formation of a multilayer structure. Diffuse reflectance spectroscopy UV–vis spectrum showed that the addition of Cu doping can strengthen the absorption range into the visible light region and narrow the MoS₂ bandgap from 2.65 eV to 1.79 eV, which is highly effective for photodetector performance. Moreover, photoluminescence spectroscopy indicated that Cu doping reduces non-radiative defects with increased photoluminescence intensity, demonstrating an improvement in optical properties. I–V and I-t measurements revealed an improvement in the photodetection properties of Cu-doped, with a responsivity value of 1.24 × 10⁻² A/W, a photosensitivity of 2.05 × 10⁴ %, a detectivity of 8.95 × 10⁹ Jones, a 2.31-fold enhancement in EQE, and an improved current response with

τ_{rise}

and

τ_{decay}

of 0.46 s and 0.42 s, respectively. This study highlights the great potential of MoS₂ thin films for next-generation optoelectronics, especially for visible-light photodetector devices.

本研究旨在研究用于光电器件的cu掺杂MoS2薄膜的光探测性能。采用室温直流非平衡磁控溅射法制备了原始MoS2薄膜和掺杂cu的MoS2薄膜。扫描电子显微镜显示了从薄片到更致密和更均匀的颗粒的形态变化。x射线衍射谱显示形成了2H-MoS2结构，衍射峰的角度变小，层间距离从5.89 Å增加到5.99 Å，表明MoS2层间存在Cu插层。拉曼光谱证实了A1g振动模式的蓝移和E2g1振动模式的红移，Δk值增加了28.39 cm−1，证实了多层结构的形成。漫反射光谱紫外可见光谱表明，Cu掺杂的加入增强了对可见光区的吸收范围，并将MoS2的带隙从2.65 eV缩小到1.79 eV，对光电探测器的性能有很大的提高。此外，光致发光光谱表明，Cu掺杂减少了非辐射缺陷，光致发光强度增加，光学性能得到改善。I-V和I-t测量结果表明，掺铜材料的光探测性能得到了改善，响应度为1.24 × 10−2 a /W，光敏度为2.05 × 104%，检出率为8.95 × 109 Jones， EQE提高了2.31倍，电流响应得到改善，τ上升和τ衰减分别为0.46 s和0.42 s。这项研究强调了MoS 2薄膜在下一代光电子，特别是可见光光电探测器器件方面的巨大潜力。

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引用次数: 0

Comparative study of the SOD-like activity of porphyrinic metal-organic framework nanozymes 卟啉类金属-有机骨架纳米酶类sod活性的比较研究

IF 5.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications

Pub Date : 2026-01-11 DOI: 10.1016/j.inoche.2026.116176

Yanan Liu , Cong Li , Shihao Zhu , Zhicong Xue , Yaxuan Wang , Wenxi Xia , Yao Chen , Muxing Zhou , Dongzhi Yang , Yufeng Liu

Superoxide dismutase (SOD) is a pivotal metalloenzyme for mitigating oxidative stress, yet its practical use is constrained by extraction, purification, and scale-up challenges. Porphyrinic MOF nanozymes offer cost-effective, stable, and tunable SOD mimetics, but the roles of mixed metalloporphyrins and framework architecture remain underexplored. Here, we synthesized two porphyrinic MOF series derived from PCN-223, featuring elliptic distortions along either the major or minor axis, by co-assembling TCPP–Mn and TCPP–Cu at defined ratios. Both frameworks share TCPP and Zr₆O₄(OH)₄ nodes but differ in topology. Materials were characterized by SEM, PXRD, UV–vis, and zeta potential; SOD-like activity was quantified using a WST-8 superoxide assay, and intracellular ROS scavenging was assessed in RAW 264.7 cells. The SOD-like activity is governed primarily by the fraction of catalytically active metal centers—Mn–porphyrin sites outperform Cu analogues—and secondarily by framework morphology, with negligible dependence on particle size. In both series, activity increases monotonically with TCPP–Mn content; at Mn/Cu = 0.8/0.2, mixed-ligand MOFs approach or exceed their single-ligand Mn counterparts. Morphology modulates performance: the minor axis PCN-223 derivatives exhibit lower activity than the major axis PCN-223 analogues. In cells, the minor axis PCN-223–Mn_0.8Cu_0.2 shows stronger ROS scavenging than the major axis PCN-223–Mn_0.8Cu_0.2, likely due to smaller particle size enhancing uptake, but with higher cytotoxicity at elevated doses. These results identify metal-center speciation and morphology as the principal design levers for SOD-mimetic porphyrinic MOFs and provide a basis for engineering efficient, application-tailored antioxidative nanozymes.

超氧化物歧化酶（SOD）是一种缓解氧化应激的关键金属酶，但其实际应用受到提取、纯化和规模化挑战的限制。卟啉MOF纳米酶提供了经济、稳定和可调的SOD模拟物，但混合金属卟啉和框架结构的作用仍未得到充分研究。在这里，我们合成了两个卟啉MOF系列，衍生自PCN-223，具有沿长轴或短轴的椭圆畸变，通过将TCPP-Mn和TCPP-Cu按规定的比例共组装。两个框架共享TCPP和Zr6O4(OH)4节点，但拓扑结构不同。采用SEM、PXRD、UV-vis、zeta电位对材料进行表征；使用WST-8超氧化物测定法定量sod样活性，并评估RAW 264.7细胞内ROS清除能力。类sod活性主要由催化活性金属中心的分数决定——mn -卟啉位点优于Cu类似物——其次由框架形态决定，与粒径的关系可以忽略不计。在这两个系列中，活性随TCPP-Mn含量单调增加；当Mn/Cu = 0.8/0.2时，混合配体mof接近或超过单配体Mn。形态调节性能：短轴PCN-223衍生物的活性低于长轴PCN-223类似物。在细胞中，小轴PCN-223-Mn0.8Cu0.2比大轴PCN-223-Mn0.8Cu0.2表现出更强的ROS清除能力，可能是由于更小的粒径增强了摄取，但在高剂量下具有更高的细胞毒性。这些结果确定了金属中心形态和形态是模拟sod卟啉mof的主要设计杠杆，并为工程高效、应用定制的抗氧化纳米酶提供了基础。

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引用次数: 0

Engineering CoMn2O4/CoOOH on biochar for enhanced peroxymonosulfate activation for tetracycline removal: The role of low-valent metal species and electron transfer CoMn2O4/CoOOH在生物炭上增强过氧单硫酸盐活化去除四环素：低价金属和电子转移的作用

IF 5.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications

Pub Date : 2026-01-10 DOI: 10.1016/j.inoche.2026.116155

Xinan Sun , Yulong Feng , Jiaxi Wang , Yuchang Chen , Jiaxing Zhang , Yiheng Chi , Shuaishuai Zhang , Lianke Zhang

Tetracycline (TC) is widely prevalent in aquatic ecosystems and poses a challenge due to its persistence, leading to escalating ecological risks and public health concerns. In this study, CoMn₂O₄/CoOOH composites supported on biochar (CoMn-O@BC) were synthesized as an efficient activator for persulfate (PMS) in degrading TC. The unique structure, featuring CoMn₂O₄/CoOOH composites anchored on a three-dimensional biochar network, prevents particle aggregation, maximizes active site exposure, and fosters synergistic interactions between components for accelerated electron transfer. Experimental findings demonstrate that under optimized conditions, the degradation efficiency of TC (30 mg/L, 100 mL) reaches 97.7% within 60 min. The catalytic composite maintains high degradation efficiency over a broad pH range, and in the presence of natural organic compounds or various coexisting ions. Mechanistic studies through quenching experiments and electron paramagnetic resonance measurements reveal that both radical (•OH, SO₄^•–, O₂^•–) and non-radical (¹O₂) pathways effectively degrade TC, with singlet oxygen (¹O₂) playing a predominant role. In a continuous-flow degradation system, the removal efficiency remained above 95% over 300 min. Furthermore, the toxicity assessment using mung bean seed germination tests evaluates the CoMn-O@BC/PMS system's ability to degrade pollutant toxicity. This study provides a novel strategy for the development of low-cost biomass/bimetal-derived catalysts for water treatment.

四环素（TC）在水生生态系统中广泛存在，并因其持久性而构成挑战，导致生态风险和公共卫生问题不断升级。在本研究中，合成了以生物炭（CoMn-O@BC）为载体的CoMn2O4/CoOOH复合材料，作为过硫酸盐（PMS）降解TC的高效活化剂。这种独特的结构将CoMn2O4/CoOOH复合材料固定在三维生物炭网络上，可以防止颗粒聚集，最大限度地增加活性位点的暴露，并促进组分之间的协同作用，加速电子转移。实验结果表明，在优化条件下，TC （30 mg/L, 100 mL）在60 min内的降解效率达到97.7%。该催化复合材料在较宽的pH范围内，以及在天然有机化合物或多种共存离子存在下保持较高的降解效率。通过淬火实验和电子顺磁共振测量的机理研究表明，自由基（•OH, SO4•-,O2•-）和非自由基（1O2）途径都能有效降解TC，其中单线态氧（1O2）起主导作用。在连续流降解系统中，300 min的去除率保持在95%以上。此外，利用绿豆种子萌发试验进行毒性评价，评价CoMn-O@BC/PMS系统对污染物毒性的降解能力。该研究为低成本生物质/双金属衍生水处理催化剂的开发提供了新的策略。

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引用次数: 0