Inorganic Chemistry Communications最新文献_第7页

Room temperature gas sensing using W18O49 nanostructures for the trace detection of acetone 利用W18O49纳米结构进行室温气敏丙酮的痕量检测

IF 5.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications

Pub Date : 2026-01-11 DOI: 10.1016/j.inoche.2026.116164

Jodinio Lemena, Hendrik C. Swart, Richard A. Harris, Jacobus J. Terblans, David E. Motaung

We report on the detection of acetone at low concentrations using a W₁₈O₄₉-based gas sensor operating at room temperature (RT). W₁₈O₄₉ was synthesized using the solvothermal method, yielding nanoparticles along with sparsely separated nanorods. The intrinsic properties (i.e., crystal structure, morphology, and defect states) of the W₁₈O₄₉ were examined. While operating at RT, the W₁₈O₄₉-based gas sensor demonstrated superior behavior to acetone among eight (8) other tested gases (ethanol, methanol, m-xylene, p-xylene, o-xylene, benzene, CO, and NO₂). The sensor was exposed to a minimal concentration of 0.08 ppm acetone, resulting in a response (R_a/R_g) of 1.04. At 1.8 ppm, the response was 1.49, respectively. The repeatability measurements at 1.8 ppm revealed that the sensor could output a constant response over multiple cycles, with a standard deviation in the spread of the data of 0.1 ppm. Relative humidity (RH) measurements indicated that the sensor performed optimally in humid conditions, suggesting that humidity acted as a catalyzing agent. The sensor displayed the best responses to acetone at lower concentrations than the other gases. The underlying data was then used for Principal Component Analysis (PCA) analysis and the k-Nearest Neighbor (kNN) algorithm. The PCA plot of the sensor responses clearly showed well-separated clusters for the tested gases, indicating that the W₁₈O₄₉-based sensor produced distinct response patterns suitable for data-driven classification. Then, the PCA-kNN classification algorithm achieved a recognition accuracy of 93%, confirming the sensor system's excellent ability to differentiate acetone from other VOCs, even at trace levels. This highlights the benefit of combining nanostructured W₁₈O₄₉ sensing materials with Machine-Learning tools for reliable VOC detection in complex environments. Density Functional Theory analysis was then performed to understand the affinity of the sensor towards acetone compared to the other gases tested. Finally, a proposed sensing mechanism was discussed in detail.

我们报道了在室温下使用基于w18o49的气体传感器检测低浓度丙酮。采用溶剂热法合成了W18O49，得到了纳米颗粒和稀疏分离的纳米棒。研究了W18O49的内在特性（即晶体结构、形貌和缺陷状态）。在RT下工作时，基于w18o49的气体传感器在8种其他测试气体（乙醇、甲醇、间二甲苯、对二甲苯、邻二甲苯、苯、CO和NO2）中对丙酮表现出优异的性能。传感器暴露在最低浓度为0.08 ppm的丙酮中，导致响应（Ra/Rg）为1.04。在1.8 ppm时，响应分别为1.49。在1.8 ppm下的可重复性测量表明，传感器可以在多个周期内输出恒定的响应，数据传播的标准偏差为0.1 ppm。相对湿度（RH）测量表明，传感器在潮湿条件下表现最佳，表明湿度起到了催化剂的作用。在较低浓度下，该传感器对丙酮的响应最好。然后将基础数据用于主成分分析（PCA）分析和k-最近邻（kNN）算法。传感器响应的PCA图清楚地显示了测试气体的良好分离簇，表明基于w18o49的传感器产生了适合数据驱动分类的不同响应模式。然后，PCA-kNN分类算法的识别准确率达到93%，证实了传感器系统区分丙酮和其他挥发性有机化合物的出色能力，即使是微量水平。这凸显了将纳米结构W18O49传感材料与机器学习工具相结合的好处，可以在复杂环境中可靠地检测VOC。然后进行密度泛函理论分析，以了解与其他测试气体相比，传感器对丙酮的亲和力。最后，对提出的传感机制进行了详细讨论。

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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

Visible-light photocatalytic conversion of fructose to 5-HMF and 5-EMF using a deep eutectic solvent-assisted Fe3O4@g-CN-DA-SO3H nanohybrid 利用深共晶溶剂辅助Fe3O4@g-CN-DA-SO3H纳米杂化物，可见光催化将果糖转化为5-HMF和5-EMF

IF 5.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications

Pub Date : 2026-01-10 DOI: 10.1016/j.inoche.2026.116156

Pouya Ghamari Kargar , Mehdi Hosseini

The conversion of renewable carbohydrates into energy-rich biofuels is crucial for sustainable chemical production. A novel magnetically recoverable photocatalyst, Fe₃O₄@g-CN–DA–SO₃H, was synthesized through surface functionalization and sulfonation, and applied for the one-pot transformation of fructose to 5-ethoxymethylfurfural (5-EMF) via 5-hydroxymethylfurfural (5-HMF). The reaction proceeded in a choline chloride–lactic acid deep eutectic solvent under visible light. The catalyst combines visible-light activity from g-CN, strong Brønsted acidity from –SO₃H groups, and magnetic separability from Fe₃O₄. These features enabled efficient dehydration and etherification of fructose in a semi-continuous cascade process. Under optimal conditions (8 wt% catalyst, 120 °C, 90 min, 40 W halogen lamp), yields of 98.4% for 5-HMF and 78.3% for 5-EMF were achieved. The catalyst also showed excellent reusability, maintaining 74.1% activity after five cycles without structural degradation. This study demonstrates a green, efficient photocatalytic route for biomass valorization and biofuel synthesis using multifunctional nanohybrids.

将可再生碳水化合物转化为能源丰富的生物燃料对于可持续的化学生产至关重要。通过表面功能化和磺化合成了一种新型磁可回收光催化剂Fe3O4@g-CN -DA-SO3H，并将其应用于5-羟甲基糠醛（5-HMF）催化果糖一锅转化为5-乙氧基甲基糠醛（5-EMF）。在可见光下，在氯化胆碱-乳酸深共熔溶剂中进行反应。该催化剂具有g-CN的可见光活性、-SO3H基团的强Brønsted酸性和Fe3O4的磁可分离性。这些特点使果糖在半连续级联过程中有效脱水和醚化。在最佳条件下（8 wt%催化剂，120°C, 90 min， 40 W卤素灯），5-HMF的收率为98.4%，5-EMF的收率为78.3%。该催化剂具有良好的可重复使用性，5次循环后仍保持74.1%的活性，无结构降解。该研究展示了一种绿色、高效的光催化途径，用于生物质增值和使用多功能纳米杂化物合成生物燃料。

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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

Nanoparticles, thin films and temperature-dependent oxidation characteristics of metallic bismuth synthesized via solventless pyrolysis of bismuth(III) dithiolates: Polymorphism and photocatalytic dye degradation of bismuth sesquioxide 二硫酸铋无溶剂热解合成金属铋的纳米粒子、薄膜和温度依赖氧化特性：多晶型和倍半氧化铋的光催化染料降解

IF 5.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications

Pub Date : 2026-01-10 DOI: 10.1016/j.inoche.2026.116158

Xianglong Liu , Tingting Wang , Longhua Li , Junli Wang

In this study, we report the preparation of Bi nanoparticles (NPs) and thin films via the solventless pyrolysis of bismuth(III) dithiolates (Bi₂(S₂C_nH_2n)₃, n = 3, 4) at 160–220 °C, whose thermolysis features the absence of the precursor melting and finishes before the product (Bi metal) melting, and then we demonstrate their oxidation conversion to Bi₂O₃ NPs and thin films at different temperatures. The polymorphs and phase transitions of so-formed Bi₂O₃ are highly dependent on the oxidation temperature. Pure-phase β-Bi₂O₃ (tetragonal), formed by thermally oxidizing Bi NPs at 400 °C, will transform to α-Bi₂O₃ (monoclinic) by the traditionally known phase transition or β’-Bi₂O₃ by the c-oriented lattice thermal expansion as the oxidation temperature increases to 500 and 600 °C, which normally leads to an incomplete β → α transition and a mixed product of β’(β)/α phases. Compared to the β phase, the lattice-expanded variant β’-Bi₂O₃ is found to be stable at both high temperature (500–600 °C) and room temperature (RT) and to display a wide bandgap (∼3.0 eV), a narrow visible-light absorption range and thus relatively poor activity in RhB photodegradation. Moreover, Bi NPs are also found to be oxidized to bismuth oxycarbonate (Bi₂O₂CO₃) at RT in the presence of H₂O and CO₂. This work opens a novel avenue to synthesize Bi and Bi₂O₃ NPs and thin films and presents new findings and insights regarding the phase regulation, polymorphism and photocatalytic performance of Bi₂O₃.

在本研究中，我们报道了在160-220℃下，通过二硫代铋酸酯（Bi2(S2CnH2n)3, n = 3,4）的无溶剂热解制备Bi纳米粒子（NPs）和薄膜，其热裂解的特点是没有前驱体熔化，在产物（Bi金属）熔化之前完成，然后我们证明了它们在不同温度下氧化转化为Bi2O3纳米粒子和薄膜。形成的Bi2O3的多晶和相变高度依赖于氧化温度。在400℃时由Bi NPs热氧化形成的纯相β-Bi2O3（四角形），随着氧化温度升高到500℃和600℃，通过传统的相变转变为α-Bi2O3（单斜），或通过C取向晶格热膨胀转变为β ' -Bi2O3，通常导致β ' (β)/α相的不完全转变和混合产物。与β相相比，晶格扩展型β′-Bi2O3在高温（500-600℃）和室温（RT）下都很稳定，并且具有较宽的带隙（~ 3.0 eV），较窄的可见光吸收范围，因此相对较差的RhB光降解活性。此外，Bi NPs还发现在H2O和CO2存在下，在RT下氧化成碳酸铋（Bi2O2CO3）。本研究为合成Bi和Bi2O3纳米颗粒和薄膜开辟了一条新途径，并在Bi2O3的相调控、多态性和光催化性能方面提出了新的发现和见解。

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引用次数: 0

Investigation of Sn3O4-SnO2 flower-like nanosheets for eff NO2 detection Sn3O4-SnO2花状纳米片检测二氧化氮的研究

IF 5.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications

Pub Date : 2026-01-10 DOI: 10.1016/j.inoche.2026.116148

Muhammad Javed Liaqat , Shahid Hussain , Arslan Shahid , Adil Shafi Ganie , Mohammed Mujahid Alam , Rajesh Kumar Manavalan , Abdullah G. Al-Sehemi , Guanjun Qiao , Guiwu Liu

Nitrogen dioxide (NO₂) is a harmful pollutant that impacts the global atmosphere and constitutes a serious risk to human health. The increasing demand for gas sensors with high sensitivity, low detection limits, and minimal power consumption has led to significant research into the development of innovative sensing materials that can effectively detect NO₂ gas at low temperatures. This study investigates the enhanced gas-sensing performance of Sn₃O₄-SnO₂ flower-like nanosheets (FNSs) synthesized using the hydrothermal method. For structural investigations XRD, Raman, XPS, SEM and TEM techniques were performed. The Sn₃O₄-SnO₂ FNSs gas sensor, underscoring its potential for efficient NO₂ detection demonstrated a remarkable response of 1487.34 at 125 °C to 100 ppm NO₂. The Sn₃O₄-SnO₂ FNSs shows excellent selectivity for NO₂ detection. The exceptional selectivity to NO₂ is mainly due to the synergistic effects of the nano-heterojunction that improve interfacial charge transfer, along with the distinctive flower-like structure of the Sn₃O₄-SnO₂ FNSs, which offers sufficient gas diffusion pathways and promotes effective gas-solid interactions. Additionally, Sn₃O₄-SnO₂ FNSs exhibit high stability maintaining consistent sensing performance for repeated cycles. By protecting both ecological and human health, this study advances the development of MOx-based gas sensors for environmental monitoring systems.

二氧化氮（NO2）是一种影响全球大气的有害污染物，对人类健康构成严重威胁。对高灵敏度、低检测限、低功耗的气体传感器的需求不断增长，促使人们对能够在低温下有效检测NO2气体的创新传感材料的开发进行了大量研究。研究了水热法制备的Sn3O4-SnO2花状纳米片（FNSs）的气敏性能。采用XRD、Raman、XPS、SEM、TEM等技术进行结构表征。Sn3O4-SnO2 FNSs气体传感器在125°C至100 ppm NO2条件下的响应值为1487.34，突出了其高效检测NO2的潜力。Sn3O4-SnO2 FNSs对NO2的检测具有良好的选择性。对NO2的特殊选择性主要是由于纳米异质结的协同作用改善了界面电荷转移，以及Sn3O4-SnO2 FNSs独特的花状结构，提供了充足的气体扩散途径，促进了有效的气固相互作用。此外，Sn3O4-SnO2 FNSs具有高稳定性，在重复循环中保持一致的传感性能。通过保护生态和人类健康，本研究推进了用于环境监测系统的mox基气体传感器的发展。

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引用次数: 0

Multifunctional Ni(II) coordination architecture: A unified approach to catalysis, energy storage, and fluorescent sensing 多功能Ni（II）配位结构：催化、能量存储和荧光传感的统一方法

IF 5.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications

Pub Date : 2026-01-09 DOI: 10.1016/j.inoche.2026.116154

Kaviya Rajendran , Sangeedha Appusamy , Raymond J. Butcher , A. Pushpaveni , Sivakumar Sengodan , Ponnusamy Kanchana

A novel nickel(II) coordination complex, aqua-(methyl hydrazinecarboxylate)-[pyridine-2,6-dicarboxylato]‑nickel [Ni(C₇H₃NO₄)(C₂H₆N₂O₂)(H₂O)], designated as NiPDMCZ, was successfully synthesized. The structural and physicochemical features of NiPDMCZ were comprehensively characterized using UV–Visible (UV-Vis) spectroscopy, FTIR spectroscopy, mass spectrometry, TG–DTA analysis, single-crystal X-ray diffraction (S-XRD), powder X-ray diffraction (P-XRD), and Hirshfeld surface analysis. The NiPDMCZ complex belongs to the monoclinic crystal system with a Cc space group containing eight formula units (Z = 8), where the Ni(II) center manifests a distinct distorted octahedral geometry. The NiPDMCZ complex possesses a narrow HOMO–LUMO gap of 1.0888 eV, reflecting its pronounced electronic reactivity. The electrochemical behavior of NiPDMCZ was examined by employing it as an electrode material in an aqueous 3 M KOH electrolyte for supercapacitor applications. The electrode exhibited an impressive specific capacitance (409 F g⁻¹) at 1 A g⁻¹ of applied current density, accompanied by high energy (136.2 Wh kg⁻¹) and power (27.8 kW kg⁻¹) densities with 92% capacitance retention in 1000 cycles. Furthermore, the catalytic activity of the complex was examined for the reduction of picric acid in aqueous medium using NaBH₄ as the reducing agent, achieving complete reduction within 24 min under ambient conditions. In addition, NiPDMCZ functioned as a highly sensitive fluorescent “turn-off” chemosensor for the selective detection of L-cysteine (L-Cys), exhibiting a Stern–Volmer quenching constant of 4.3 × 10⁴ M⁻¹, indicative of a strong quenching interaction. Overall, the NiPDMCZ complex demonstrates significant promise in energy storage, catalytic reduction of environmental pollutants, and fluorescent sensing of biomolecules, positioning it as a valuable candidate for advanced materials and sustainable technological applications.

成功地合成了一种新型的镍（II）配合物水-（甲基肼羧酸盐）-[吡啶-2,6-二羧酸盐]-镍[Ni（C₇H₃NO₄）（C₂H₆N₂O₂）（H₂O）]，命名为NiPDMCZ。采用紫外-可见（UV-Vis）光谱、FTIR光谱、质谱、TG-DTA分析、单晶x射线衍射（S-XRD）、粉末x射线衍射（P-XRD）和Hirshfeld表面分析等手段对NiPDMCZ的结构和物理化学特征进行了全面表征。NiPDMCZ配合物属于单斜晶系，其Cc空间群包含8个公式单元（Z = 8），其中Ni（II）中心表现出明显的畸变八面体几何形状。NiPDMCZ配合物具有1.0888 eV的窄HOMO-LUMO隙，反映了其明显的电子反应性。以NiPDMCZ为电极材料，在3 M KOH水溶液中研究了NiPDMCZ在超级电容器中的电化学性能。该电极在施加电流密度为1 A g−1时具有令人印象深刻的比电容（409 F g−1），伴随着高能量（136.2 Wh kg−1）和功率（27.8 kW kg−1）密度，在1000次循环中具有92%的电容保持率。此外，以NaBH₄为还原剂考察了该配合物在水溶液中还原苦味酸的催化活性，在正常条件下可在24 min内实现完全还原。此外，NiPDMCZ作为一种高灵敏度的荧光“关闭”化学传感器，用于选择性检测l -半胱氨酸（L-Cys），显示出Stern-Volmer猝灭常数为4.3 × 104 M−1，表明强猝灭相互作用。总的来说，NiPDMCZ复合物在能量存储、环境污染物的催化还原和生物分子的荧光传感方面具有重要的前景，将其定位为先进材料和可持续技术应用的有价值的候选者。

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引用次数: 0

Herbal carbon dots for wound healing: Bridging traditional phytomedicine with advanced Nanotherapeutics 用于伤口愈合的草药碳点：将传统的植物医学与先进的纳米疗法连接起来

IF 5.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications

Pub Date : 2026-01-09 DOI: 10.1016/j.inoche.2026.116162

Muskan Leharwani , Harshita Singhai , Umme Hani , Vanitha Innocent Rani , Garima Gupta , Khang Wen Goh , Umesh Kumar Patil , Prashant Kesharwani

Chronic wounds represent a growing global health crisis, driven by complex pathophysiological mechanisms including persistent inflammation, microbial colonization, impaired angiogenesis, and oxidative tissue damage. The conventional treatment often falls short in addressing these multifactorial challenges particularly due to increasing cases antimicrobial resistance and limited capacity for targeted and adaptive interventions. Herbal carbon dots have emerged as a next-generation nanotherapeutic platform representing an elegant fusion of phytomedicine wisdom and responsiveness of modern nanotechnology. The herbal carbon nanodots are generally synthesized through eco-friendly green chemistry from diverse medicinal plant biomass. These ultrasmall, fluorescent nanoparticles retain and transform bioactive motifs properties their botanical precursors as reflected in their antimicrobial, anti-inflammatory, antioxidant, and pro-angiogenic effects, while gaining enhanced cellular uptake, aqueous solubility, and controlled therapeutic release from the nano architecture. This comprehensive review illuminates the mechanistic landscape of herbal carbon dot interventions, spanning intelligent antimicrobial strategies that circumvent resistance pathways, sophisticated stimuli-responsive designs responsive to wound microenvironments, strategic heteroatom doping for enhanced enzymatic mimicry, targeted modulation of inflammatory cascades and angiogenic pathways, and specialized formulations addressing diabetic complications, UV-damaged tissue, chemical burns, and bone-associated wounds. This review also highlights the emerging computational strategies, including machine learning and Bayesian neural networks approaches for synthesis optimization and property prediction of Carbon Nanodots.

慢性伤口是一种日益严重的全球健康危机，由复杂的病理生理机制驱动，包括持续炎症、微生物定植、血管生成受损和氧化组织损伤。常规治疗往往无法应对这些多因素挑战，特别是由于抗菌素耐药性病例不断增加以及有针对性和适应性干预措施的能力有限。草药碳点已经成为下一代纳米治疗平台，代表了植物医学智慧和现代纳米技术的反应性的优雅融合。草药碳纳米点一般是通过生态友好的绿色化学方法从多种药用植物生物质中合成的。这些超小的荧光纳米颗粒保留并转化其植物前体的生物活性基序特性，反映在它们的抗菌、抗炎、抗氧化和促血管生成作用中，同时从纳米结构中获得增强的细胞摄取、水溶性和控制的治疗释放。这篇全面的综述阐明了草药碳点干预的机制景观，包括规避耐药途径的智能抗菌策略，对伤口微环境敏感的复杂刺激反应设计，增强酶模拟的战略性杂原子掺杂，炎症级联反应和血管生成途径的靶向调节，以及针对糖尿病并发症，紫外线损伤组织，化学烧伤的专门配方。以及与骨头有关的伤口。本文还重点介绍了用于碳纳米点合成优化和性能预测的新兴计算策略，包括机器学习和贝叶斯神经网络方法。

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引用次数: 0

A meteorite-like ZIF-8/PAC nanocomposite for the efficient removal of celecoxib from wastewater 一种类似陨石的ZIF-8/PAC纳米复合材料，用于有效去除废水中的塞来昔布

IF 5.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications

Pub Date : 2026-01-09 DOI: 10.1016/j.inoche.2026.116165

Roozbeh Malek Mohammadi , Sahar Baniyaghoob , Mahboobeh Manoochehri , Homayon Ahmad Panahi

The persistent presence of pHarmaceutical pollutants, particularly nonsteroidal anti-inflammatory drugs (NSAIDs) such as celecoxib, in aquatic environments presents a critical environmental challenge, necessitating efficient and sustainable remediation strategies. Herein, we report the design and synthesis of a novel metal–organic framework-based coagulant nanocomposite, zeolitic imidazolate framework-8/polyaluminum chloride (ZIF-8/PAC), for the highly effective removal of celecoxib from aqueous solutions. The ZIF-8/PAC nanocomposite was comprehensively characterized using XRD, SEM, FT-IR, BET, and UV–Vis spectrophotometry. BET analysis revealed a high surface area of 1301.1 m² g⁻¹, which decreased to 358.1 m² g⁻¹ post-adsorption, confirming the efficient uptake of celecoxib within the porous framework. Adsorption performance was strongly dependent on solution pH, achieving optimal removal (>90%) at pH 8.3, highlighting the significance of π–π interactions. Under optimized conditions (pH = 8.3, adsorbent dose = 0.01 g, initial concentration = 20 mg L⁻¹, solution volume = 20 mL, room temperature, contact time = 24 h), the nanocomposite exhibited a high adsorption capacity of 33 mg g⁻¹. Additionally, the ZIF-8/PAC adsorbent demonstrated excellent recyclability, maintaining removal efficiency from 97% to 67% over six consecutive adsorption–desorption cycles. These findings establish ZIF-8/PAC as a robust, reusable, and highly effective adsorbent for the remediation of emerging pharmaceutical contaminants, offering a promising approach for sustainable water purification.

药物污染物的持续存在，特别是非甾体抗炎药（NSAIDs）如塞来昔布，在水生环境中提出了一个关键的环境挑战，需要有效和可持续的修复策略。在此，我们设计并合成了一种新型的基于金属-有机框架的混凝剂纳米复合材料，沸石咪唑酸框架-8/聚合氯化铝（ZIF-8/PAC），用于高效去除水溶液中的塞来昔布。采用XRD、SEM、FT-IR、BET、UV-Vis等方法对ZIF-8/PAC纳米复合材料进行了表征。BET分析显示，吸附后的比表面积为1301.1 m2 g−1，降至358.1 m2 g−1，证实了塞来昔布在多孔框架内的有效吸附。吸附性能强烈依赖于溶液pH，在pH 8.3时达到最佳去除率（>90%），突出了π -π相互作用的重要性。在最佳条件下（pH = 8.3，吸附剂剂量= 0.01 g，初始浓度= 20 mg L−1，溶液体积= 20 mL，室温，接触时间= 24 h），纳米复合材料的吸附量为33 mg g−1。此外，ZIF-8/PAC吸附剂表现出优异的可回收性，在连续六次吸附-解吸循环中，去除率保持在97%至67%之间。这些研究结果表明，ZIF-8/PAC是一种强大的、可重复使用的、高效的吸附剂，可用于新兴药物污染物的修复，为可持续水净化提供了一种有前途的方法。

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引用次数: 0