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Pt(II)-Cu(I) and Au(I)-Cu(I) complexes based on a bis(1,10-phenanthrolin-2-yl)phosphine: synthesis, near-IR luminescence and cytotoxic activity 铂(II)-铜(I)和金(I)-铜(I)配合物的合成、近红外发光和细胞毒活性
IF 5.4 3区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2026-01-26 DOI: 10.1016/j.inoche.2026.116233
Andrey Yu. Baranov , Lyubov S. Klyushova , Evgeny Kh. Sadykov , Vasily N. Yudin , Alexander V. Artem'ev
The novel trimetal-binding P(N,N′)2-ligand bis(1,10-phenanthrolin-2-yl)phenylphosphine (L) has been synthesized and used to assemble near-infrared (NIR) emissive complexes. Reactions of L with either [Pt(cod)Cl2]/Cu+ or [Au(tht)Cl]/Cu+ systems selectively yielded the trinuclear complexes [PtCu2Cl2L2]2+ and [Au2Cu2Cl2L2]2+, isolated as their PF6 salts. Structural analysis confirms that the PtII and AuI centers are P-coordinated, while each CuI ion is chelated by a pair of phenanthroline arms. At 298 K, the Pt(II)-Cu(I) and Au(I)-Cu(I) complexes exhibit NIR luminescence with maxima at 820 and 810 nm, respectively, which is attributed to triplet (metals and halogen)-to-ligand charge transfer 3(M+M′+X)LCT character based on theoretical calculations. Notably, the Au(I)-Cu(I) complex demonstrated cytotoxicity against tumor MCF-7 cell line, with LC50 values of 16.6 ± 0.7 μM, approximately twice the potency of cisplatin.
合成了新型三金属结合P(N,N ')2-配体双(1,10-菲罗啉-2-基)苯基膦(L),并用于组装近红外(NIR)发射配合物。L与[Pt(cod)Cl2]/Cu+或[Au(tht)Cl]/Cu+体系的反应选择性地产生[PtCu2Cl2L2]2+和[Au2Cu2Cl2L2]2+三核配合物,分离为它们的PF6−盐。结构分析证实PtII和AuI中心是p配位的,而每个CuI离子被一对菲罗啉臂螯合。在298 K时,Pt(II)-Cu(I)和Au(I)-Cu(I)配合物分别在820 nm和810 nm处表现出最大的近红外发光,这是基于理论计算的三态(金属和卤素)到配体的电荷转移3(M+M′+X)LCT特性。值得注意的是,Au(I)-Cu(I)复合物显示出对肿瘤MCF-7细胞系的细胞毒性,其LC50值为16.6±0.7 μM,约为顺铂的两倍。
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引用次数: 0
Interfacial electric field-driven S-scheme photocatalysis in CdO/g-C3N4 for enhanced charge separation and pollutant degradation 界面电场驱动s -方案光催化CdO/g-C3N4增强电荷分离和污染物降解
IF 5.4 3区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2026-01-25 DOI: 10.1016/j.inoche.2026.116232
Sami A. Al-Hussain , Ashraf A. Mohamed , Arafat Toghan , Mohamed A. Ahmed , Mohamed Farag , Hoda A. Ahmed , Moayad M. Khashoqji , Mahmoud Adel
This work presents the rational design of a direct S-scheme heterojunction, fabricated by ultrasonically decorating exfoliated g-C₃N₄ nanosheets with CdO nanoparticles. Comprehensive characterization (XRD, TEM, FTIR, XPS) verified the successful synthesis, controlled CdO crystallite size, and the critical formation of intimate interfacial CdN bonds. The composite's performance is significantly amplified by synergistic adsorption mechanisms, including π–π stacking H-bonding, coordinate bonding, and electrostatic interactions, which preconcentrate pollutant molecules at the active sites to directly facilitate the subsequent degradation. The optimized photocatalyst exhibits dramatically boosted performance, achieving a pseudo-first-order rate constant of 0.0181 min−1 for tetracycline (TC) degradation, which is 4.2 times greater than that of pristine g-C₃N₄. Crucially, it demonstrates robust practical utility by effectively degrading TC in the presence of common aquatic interferents, such as inorganic ions and humic acid; its efficacy is further amplified by the synergistic addition of H₂O₂ as an electron scavenger. A concerted mechanistic investigation provides definitive evidence for the S-scheme pathway: Mott–Schottky and DRS analyses established the requisite band alignment, while XPS revealed a negative binding energy shift in g-C₃N₄, directly proving electron transfer and the creation of an internal electric field (IEF). Consequently, photoelectrochemical and photoluminescence studies demonstrated profoundly enhanced charge separation efficiency and near-complete quenching of radiative recombination. Radical trapping experiments identified •O₂ as the primary active species, validating the proposed S-scheme charge transfer mechanism.
本文提出了一种直接s型异质结的合理设计,该异质结是用CdO纳米颗粒超声修饰剥离的g-C₃N₄纳米片制备的。综合表征(XRD, TEM, FTIR, XPS)验证了合成成功,控制了CdO的晶粒尺寸,并临界形成了CdN的亲密界面键。通过协同吸附机制,包括π -π堆叠h键、配位键和静电相互作用,使污染物分子预先集中在活性位点,直接促进随后的降解,显著增强了复合材料的性能。优化后的光催化剂表现出显著提高的性能,实现了四环素(TC)降解的伪一阶速率常数为0.0181 min−1,是原始g-C₃N₄的4.2倍。至关重要的是,它通过在常见的水生干扰物(如无机离子和腐植酸)存在下有效降解TC,证明了强大的实用价值;它的功效进一步扩大了协同添加的氢氧作为电子清除剂。一项协调一致的机制研究为s方案途径提供了明确的证据:Mott-Schottky和DRS分析建立了必要的能带对准,而XPS揭示了g-C₃N₄的负结合能转移,直接证明了电子转移和内部电场(IEF)的产生。因此,光电化学和光致发光研究表明,电荷分离效率大大提高,辐射复合几乎完全猝灭。自由基捕获实验发现•O₂−是主要的活性物质,验证了s方案电荷转移机制。
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引用次数: 0
The markedly enhanced elimination of tetracycline over a novel mesoporous AgVO3/BaTiO3 piezo-photocatalyst with S-scheme heterojunction and visible light-induced performance 具有s -图式异质结和可见光诱导性能的新型介孔AgVO3/BaTiO3压电光催化剂显著增强了四环素的消除
IF 5.4 3区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2026-01-25 DOI: 10.1016/j.inoche.2026.116231
Hind Alshaikh , Tamer M. Khedr
The main challenge for decomposition and removing water contaminants using semiconductor-based photocatalysis is the efficient separation of charge carriers. In this research contribution, we rationally developed a dual piezoelectric-semiconducting heterostructure photocatalyst, composed of a mesoporous step-scheme (S-scheme) of AgVO3/BaTiO3, to synergistically promote charge carrier separation and kinetic rates for the highly efficient elimination of tetracycline by synergistic impacts under stirring and visible light exposure. The optical absorption examinations demonstrated that the AgVO3/BaTiO3 composites unveiled outstanding abilities to absorb and utilize light energy in the region of the visible spectrum. Additionally, PL and photocurrent evaluations verified that the AgVO3/BaTiO3 hybrids had the best capacities to spatially separate the charge carriers. The alteration in binding energy values within the AgVO3/BaTiO3 compared to pure samples additionally endorsed the directional flow of electrons from BaTiO3 to AgVO3 whenever there was no illumination, which implied that charges move in response to the S-scheme model when subjected to irradiation. Responding to the decomposition evaluations, the piezo-photocatalytic capacity was substantially enhanced by the most appropriate concentration of AgVO3 (15 wt%). This implies that sewage treatment might benefit from these heterostructures. After only 60 min of encountering visible illumination and stirring, tetracycline was entirely (100%) degraded over the 15 wt% AgVO3/BaTiO3 hybrid. This proceeded at an overall degradation rate of 2.4872 μmol min−1, which was 39.2-fold more efficient than the degradation rate achieved by pure BaTiO3 (0.0635 μmol min−1). Meanwhile, the 15 wt% AgVO3/BaTiO3 hybrid showcased superb stability and durability, signifying that this heterostructure material might be utilized over and over and endure for an extended duration. The simultaneous impact of the stir-generated piezoelectric field and the interfacial electric field substantially enhanced the charges' spatial separation and directional flux of the charges, which efficiently degraded and eliminated tetracycline. The research presented here shares crucial understandings and perspectives concerning the feasible design of innovative heterostructures with superior piezo-photocatalytic functionality to sustainably alleviate water contamination issues.
利用半导体光催化分解和去除水污染物的主要挑战是有效分离载流子。在本研究中,我们合理地开发了一种双压电-半导体异质结构光催化剂,由AgVO3/BaTiO3的介孔步进结构(S-scheme)组成,在搅拌和可见光照射下,通过协同作用促进载流子分离和动力学速率,从而高效地消除四环素。光吸收测试表明,AgVO3/BaTiO3复合材料在可见光光谱区域具有出色的吸收和利用光能的能力。此外,PL和光电流评价验证了AgVO3/BaTiO3杂化材料具有最佳的空间分离载流子的能力。与纯样品相比,AgVO3/BaTiO3内部结合能值的变化也支持了电子在没有光照的情况下从BaTiO3向AgVO3的定向流动,这意味着电荷在辐照下响应s方案模型移动。根据分解评价,最合适的AgVO3浓度(15 wt%)大大提高了压电光催化能力。这意味着污水处理可能受益于这些异质结构。经过60分钟的光照和搅拌,四环素在15wt % AgVO3/BaTiO3杂交种上完全(100%)降解。总降解率为2.4872 μmol min - 1,是纯BaTiO3 (0.0635 μmol min - 1)降解效率的39.2倍。同时,15wt %的AgVO3/BaTiO3杂化材料显示出极好的稳定性和耐久性,这表明这种异质结构材料可以反复使用,并持续使用更长时间。搅拌产生的压电场和界面电场的同时作用大大增强了电荷的空间分离和方向通量,有效地降解和消除了四环素。本文提出的研究成果分享了对创新异质结构的可行性设计的重要理解和观点,这些异质结构具有优越的压电光催化功能,可以持续缓解水污染问题。
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引用次数: 0
Iron oxide/magnesium oxide nanocmoposite as new superhydrophobic paper surface and antibacterial activity 氧化铁/氧化镁纳米复合材料作为新型超疏水纸表面及其抗菌活性
IF 5.4 3区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2026-01-25 DOI: 10.1016/j.inoche.2026.116216
Sabah H. Jumaah, Raad S. Sabry, Wisam J. Aziz, Muslim A. Abid, Duha A. Kadhim
In this study, alpha iron oxide nanoparticles (α-Fe₂O₃ NPs), magnesium oxide nanoparticles (MgO NPs), and iron oxide/magnesium oxide nanocomposites (Fe₂O₃/MgO NCs) were used for the antimicrobial activity. The hydrothermal approach was used to synthesize the samples (α-Fe₂O₃ NPs, MgO NPs, and Fe₂O₃/MgO NCs). The superhydrophobic surfaces of α-Fe₂O₃/MgO NCs were prepared by the spraying-coated sheets method with molar ratios (x = 0.01, 0.05, 0.1, and 0.2). The samples were characterized by XRD patterns, Raman analysis, FESEM images, EDX analysis, and FTIR spectrum. XRD patterns show that the average crystal sizes of the samples are 9, 25, and 42 nm, respectively. FE-SEM images of samples reveal the formation of worm-like nanoparticles with an approximate length between 100 and 120 nm, respectively. The EDX analysis indicated the presence of MgO and FeO NPs with high purity and uniform size and shape. The strong absorption peaks of the samples were 481, 431, and 574 cm−1, respectively, as determined by the FTIR spectrum. Paper impregnated with α-Fe₂O₃/MgO NCs had its contact angle with a water droplet on its surface studied and compared. Coated sheets with molar ratios (x = 0.01, 0.05, 0.1, and 0.2) have contact angles of 153.9°, 154.2°, 155.6°, and 159.4°, respectively; this indicates that all four samples are quite hydrophobic. Gram-positive bacteria (Staphylococcus aureus and Staphylococcus epidemidis) had inhibitory zones that were 13.00 to 18.00 mm, 12 to 25 mm, and 8.00 to 10 mm in size, respectively, according to this study. Escherichia coli and Klebsiella pneumoniae were gram-negative bacteria, measuring 10.00 to 24.00 mm, 14.00 to 28.00 mm, and 6.00 to 10 mm, respectively. Inhibition zone diameters (IZDs) for fungi were correspondingly 12.00 mm, 10.00 mm, and 8.00 mm. This study examines a recently reported combination of samples with superhydrophobic surfaces using the spray method for antibacterial activity.
在这项研究中,使用α氧化铁纳米粒子(α-Fe₂O₃NPs)、氧化镁纳米粒子(MgO NPs)和氧化铁/氧化镁纳米复合材料(Fe₂O₃/MgO NCs)进行抗菌活性研究。采用水热法合成了α-Fe₂O₃NPs、MgO NPs和Fe₂O₃/MgO NCs。采用摩尔比为(x = 0.01, 0.05, 0.1, 0.2)的喷雾涂布法制备了α-Fe₂O₃/MgO NCs的超疏水表面。采用XRD、拉曼光谱、FESEM、EDX和FTIR光谱对样品进行了表征。XRD谱图显示,样品的平均晶粒尺寸分别为9 nm、25 nm和42 nm。样品的FE-SEM图像显示形成了蠕虫状的纳米颗粒,其长度分别在100到120 nm之间。EDX分析表明MgO和FeO纳米颗粒纯度高,尺寸和形状均匀。样品的强吸收峰分别为481、431和574 cm−1。研究了α-Fe₂O₃/MgO NCs浸渍纸与表面水滴的接触角。摩尔比(x = 0.01, 0.05, 0.1和0.2)的涂覆片接触角分别为153.9°,154.2°,155.6°和159.4°;这表明这四种样品都是非常疏水的。根据本研究,革兰氏阳性菌(金黄色葡萄球菌和流行葡萄球菌)的抑菌区大小分别为13.00 ~ 18.00 mm、12 ~ 25 mm和8.00 ~ 10 mm。大肠杆菌和肺炎克雷伯菌为革兰氏阴性菌,分别为10.00 ~ 24.00 mm、14.00 ~ 28.00 mm和6.00 ~ 10 mm。真菌的抑菌带直径分别为12.00 mm、10.00 mm和8.00 mm。本研究检查了最近报道的样品与超疏水表面的组合使用的抗菌活性的喷雾方法。
{"title":"Iron oxide/magnesium oxide nanocmoposite as new superhydrophobic paper surface and antibacterial activity","authors":"Sabah H. Jumaah,&nbsp;Raad S. Sabry,&nbsp;Wisam J. Aziz,&nbsp;Muslim A. Abid,&nbsp;Duha A. Kadhim","doi":"10.1016/j.inoche.2026.116216","DOIUrl":"10.1016/j.inoche.2026.116216","url":null,"abstract":"<div><div>In this study, alpha iron oxide nanoparticles (α-Fe₂O₃ NPs), magnesium oxide nanoparticles (MgO NPs), and iron oxide/magnesium oxide nanocomposites (Fe₂O₃/MgO NCs) were used for the antimicrobial activity. The hydrothermal approach was used to synthesize the samples (α-Fe₂O₃ NPs, MgO NPs, and Fe₂O₃/MgO NCs). The superhydrophobic surfaces of α-Fe₂O₃/MgO NCs were prepared by the spraying-coated sheets method with molar ratios (x = 0.01, 0.05, 0.1, and 0.2). The samples were characterized by XRD patterns, Raman analysis, FESEM images, EDX analysis, and FTIR spectrum. XRD patterns show that the average crystal sizes of the samples are 9, 25, and 42 nm, respectively. FE-SEM images of samples reveal the formation of worm-like nanoparticles with an approximate length between 100 and 120 nm, respectively. The EDX analysis indicated the presence of MgO and FeO NPs with high purity and uniform size and shape. The strong absorption peaks of the samples were 481, 431, and 574 cm<sup>−1</sup>, respectively, as determined by the FTIR spectrum. Paper impregnated with α-Fe₂O₃/MgO NCs had its contact angle with a water droplet on its surface studied and compared. Coated sheets with molar ratios (x = 0.01, 0.05, 0.1, and 0.2) have contact angles of 153.9°, 154.2°, 155.6°, and 159.4°, respectively; this indicates that all four samples are quite hydrophobic. Gram-positive bacteria (<em>Staphylococcus aureus</em> and Staphylococcus epidemidis) had inhibitory zones that were 13.00 to 18.00 mm, 12 to 25 mm, and 8.00 to 10 mm in size, respectively, according to this study. <em>Escherichia coli</em> and <em>Klebsiella pneumoniae</em> were gram-negative bacteria, measuring 10.00 to 24.00 mm, 14.00 to 28.00 mm, and 6.00 to 10 mm, respectively. Inhibition zone diameters (IZDs) for fungi were correspondingly 12.00 mm, 10.00 mm, and 8.00 mm. This study examines a recently reported combination of samples with superhydrophobic surfaces using the spray method for antibacterial activity.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116216"},"PeriodicalIF":5.4,"publicationDate":"2026-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074325","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
Covalent terpyridine grafting on ZIF-8 unlocks trace copper sensing in complex matrices and efficient photocatalysis ZIF-8上的共价三吡啶接枝实现了复杂基质中痕量铜的传感和高效光催化
IF 5.4 3区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2026-01-25 DOI: 10.1016/j.inoche.2026.116225
Smriti Rana , Yogesh Kumar , Rahul Kaushik , Pallav Mondal , Lalita S. Kumar
The coexistence of heavy metals and synthetic dyes in water systems necessitates multifunctional platforms for the simultaneous detection and degradation of these pollutants. Zeolitic Imidazole Frameworks (ZIFs) post-modification with organic ligands has gained significant attention for environmental applications. In this regard, a terpyridine-functionalized ZIF framework (ZATpy) was synthesized via post-synthetic grafting to introduce the terpyridine ligand (Tpy) on the ZIF-8 framework. Unlike most MOF sensors using coordinated ligands or single-function designs, ZATpy features covalently attached uncoordinated terpyridine sites offering direct metal-binding access and enabling both ultra-sensitive Cu(II) sensing and efficient photocatalysis in a single robust platform. UV–Vis spectroscopy confirmed high selectivity of Cu (II) recognition with optimal response in the neutral pH (5–7) range, minimally affected by competing ions with a limit of detection (LOD) of 0.131 μM. Notably, ZATpy retained its Cu(II) sensing ability in complex real water matrices, including Yamuna River water, Ganga River water, seawater, and tap water. Furthermore, Inductively Coupled Plasma Mass Spectrometry (ICP-MS) validated Cu (II) capture efficiency under sensing conditions with 28.7% adsorption efficiency. Photocatalytic studies revealed excellent degradation of methyl red dye, with 94.4% degradation in 60 mins and good reusability. Computational studies also indicated favourable adsorption energetics for Cu (II) and π–π interactions with aromatic dye substrate. The integration of free ligand functionality onto the porous ZIF surface enables concurrent ion recognition and charge-guided photo-catalysis, offering a viable approach for water purification.
重金属和合成染料在水系统中的共存需要多功能平台来同时检测和降解这些污染物。有机配体修饰后的沸石咪唑框架(ZIFs)在环境应用方面受到了广泛的关注。为此,通过合成后接枝,在ZIF-8框架上引入了三联吡啶配体(Tpy),合成了三联吡啶功能化ZIF框架(ZATpy)。与大多数使用配体或单一功能设计的MOF传感器不同,ZATpy具有共价连接的非配位三吡啶位点,提供直接的金属结合通路,并在一个强大的平台上实现超灵敏的Cu(II)传感和高效的光催化。紫外可见光谱结果表明,该方法对Cu (II)具有较高的选择性,在中性pH(5 ~ 7)范围内响应最佳,受竞争离子的影响最小,检出限(LOD)为0.131 μM。值得注意的是,ZATpy在复杂的真实水矩阵中保持了Cu(II)的传感能力,包括亚穆纳河水、恒河河水、海水和自来水。此外,电感耦合等离子体质谱(ICP-MS)验证了感应条件下Cu (II)的捕获效率为28.7%。光催化研究表明,甲基红染料具有良好的降解性能,60 min降解率为94.4%,可重复使用。计算研究还表明,Cu (II)和π -π与芳香染料底物的相互作用具有良好的吸附能量。将自由配体功能集成到多孔ZIF表面上,可以同时进行离子识别和电荷引导光催化,为水净化提供了一种可行的方法。
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引用次数: 0
Phytochemicals-derived functional metal/metal oxide nanocomposites: Mechanistic insights and biological interactions 植物化学衍生的功能金属/金属氧化物纳米复合材料:机理见解和生物相互作用
IF 5.4 3区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2026-01-25 DOI: 10.1016/j.inoche.2026.116214
Mohammad Asim Saifi , Aayasha Negi , Amanpreet Kaur , Lakshya , Ramchander Merugu , Sadhna Negi , Mohamed Taha Yassin
Phytochemically-derived metal and metal oxide nanocomposites (NCs) represent a pivotal advancement in sustainable nanomaterial synthesis. The core novelty of this review lies in proposing a predictive synthesis-structure-activity framework that systematically transitions green synthesis from an empirical methodology to a rational design paradigm. This analysis critically correlates phytochemical composition with precise control over NCs morphology, crystallinity, and surface properties, which in turn govern functional outcomes. The multifunctional bioactivity of these NCs, spanning antimicrobial, anticancer, antioxidant and regenerative applications, is examined with emphasis on their underlying synergistic mechanisms. These include phytochemical-metal interplay that modulates cellular internalisation, reactive oxygen species (ROS) generation and intracellular signalling pathways. Current limitations, such as reproducibility, toxicity and regulatory challenges, are addressed alongside prospects for biomedical and environmental applications. This review establishes a pioneering synthesis structure and activity framework that meticulously unpacks the green synthesis and multifunctional behaviour of plant-derived metal and metal oxide nanocomposites.
植物化学衍生的金属和金属氧化物纳米复合材料(NCs)代表了可持续纳米材料合成的关键进展。本综述的核心新颖之处在于提出了一个预测性综合-结构-活动框架,该框架系统地将绿色综合从经验方法过渡到理性设计范式。该分析将植物化学成分与对nc形态、结晶度和表面特性的精确控制联系起来,从而控制功能结果。这些NCs的多功能生物活性,跨越抗菌、抗癌、抗氧化和再生应用,重点研究了它们潜在的协同机制。其中包括调节细胞内化、活性氧(ROS)产生和细胞内信号通路的植物化学-金属相互作用。目前的限制,如可重复性、毒性和监管挑战,将与生物医学和环境应用的前景一起讨论。本文建立了一个开创性的合成结构和活性框架,细致地揭示了植物源金属和金属氧化物纳米复合材料的绿色合成和多功能行为。
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引用次数: 0
Fluorine-doped carbon quantum dots for sunset yellow analysis in complex food matrices 含氟碳量子点用于复杂食品基质中日落黄分析
IF 5.4 3区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2026-01-24 DOI: 10.1016/j.inoche.2026.116221
Mei Wang , Shan Mou , Xiaofang Tian, Meijie Xie, Xinyu Luo, Pei Zhang, Yingjuan Wang, Boyan Zheng, Qingqing Zou, Qianchun Zhang
Sunset yellow (SY) is a widely used artificial food coloring that can pose health risks when consumed in excess. In this study, a fluorescent sensor for the quantitative analysis of SY content in complex foods was reported. Using ammonium fluoride and sorbic acid as precursors, fluorine-doped carbon quantum dots (F-CDs) were synthesized via solvothermal method. The prepared F-CDs were characterized by transmission electron microscopy (TEM), atomic force microscopy (AFM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS). The results revealed that F-CDs had a uniform morphology and fluorine-rich structure, with an average particle size of 2.15 nm. In addition, we found that F-CDs exhibited excellent selectivity for SY, mainly due to the fluorescence quenching effect of SY on F-CDs. Therefore, a fluorescent sensor based on F-CDs was constructed with a linear detection range of 0.010–75 μM (R2 = 0.997) and a detection limit of 30 nM. The sensor's practical applicability was demonstrated by analyzing of SY in hard candy, tangerine peel sugar, peach jelly, beer, and bread, with recoveries of 92.1%–115% and RSDs of 1.0–4.8%. What's more, the fluorescence detection results were closely related to the HPLC-DAD validation results (relative deviation ≤0.17), highlighting the accuracy of the method. F-CD-based fluorescence detection platforms offer the advantages of simplicity, sensitivity, and reliability, providing a promising tool for routine SY monitoring in food safety applications.
日落黄(SY)是一种广泛使用的人工食用色素,过量食用会对健康造成威胁。本研究报道了一种用于定量分析复合食品中SY含量的荧光传感器。以氟化铵和山梨酸为前驱体,采用溶剂热法制备了氟掺杂碳量子点。采用透射电子显微镜(TEM)、原子力显微镜(AFM)、x射线衍射仪(XRD)、傅里叶变换红外光谱(FT-IR)和x射线光电子能谱(XPS)对制备的F-CDs进行了表征。结果表明,F-CDs具有均匀的形貌和富氟结构,平均粒径为2.15 nm。此外,我们发现F-CDs对SY表现出优异的选择性,这主要是由于SY对F-CDs的荧光猝灭作用。因此,构建了基于F-CDs的荧光传感器,线性检测范围为0.010 ~ 75 μM (R2 = 0.997),检出限为30 nM。通过对硬糖、陈皮糖、蜜桃果冻、啤酒、面包中SY含量的分析,验证了该传感器的实用性,其回收率为92.1% ~ 115%,rsd为1.0 ~ 4.8%。荧光检测结果与HPLC-DAD验证结果密切相关(相对偏差≤0.17),突出了方法的准确性。基于f - cd的荧光检测平台具有简单、灵敏、可靠等优点,为食品安全应用中SY的常规监测提供了一种很有前景的工具。
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引用次数: 0
Photobiological engineering method with colors LEDs for the green synthesis of gold nanoparticles and their photocatalytic activity 用彩色led进行绿色合成的光生物工程方法及其光催化活性
IF 5.4 3区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2026-01-24 DOI: 10.1016/j.inoche.2026.116229
Bryan López-Nájera , Jonatán Joel Aguirre-Camacho , Lucía Z. Flores-López PhD , Heriberto Espinoza-Gómez PhD , Gabriel Alonso-Núñez PhD. , Rubén Darío Cadena-Nava PhD
This research work focused on the green synthesis of gold nanoparticles (AuNPs) using a novel photobiological engineering method with an aqueous extract of fresh Gardenia jasminoides (G. jasminoides) leaves (AuNPs/ExGj); which was used as a reducing-stabilizing (RS) agent, for the first time. A reactor with narrow-band LEDs of different colors (blue, green, yellow, red, and white) and solar light was used to carry out the green synthesis. The synthesized AuNPs/ExGj were characterized through ultraviolet-visible spectrophotometry (UV–Vis), attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR), and field emission transmission electron microscopy (FETEM-EDX). The AuNPs/ExGj were obtained in various morphologies, including spherical, triangular, pentagonal, and icosahedron (regular and irregular shapes), as well as nanorods, with average sizes between 27 and 52 nm. Moreover, the AuNPs/ExGj resulted efficient catalysts in the photodegradation of over-the-counter commercial dye derived from benzidine. The photocatalytic efficiency, using sunlight or white LED (WhL) as a radiation source, was 94.9% and 99.8%, respectively, in a reaction time of two hours.
本研究以栀子鲜叶水提物(AuNPs/ExGj)为原料,采用新型光生物工程方法绿色合成金纳米颗粒(AuNPs);首次作为还原稳定剂(RS)使用。利用不同颜色(蓝、绿、黄、红、白)的窄带led和太阳光的反应器进行绿色合成。通过紫外可见分光光度法(UV-Vis)、衰减全反射傅里叶变换红外光谱法(ATR-FTIR)和场发射透射电镜(FETEM-EDX)对合成的AuNPs/ExGj进行了表征。获得的AuNPs/ExGj具有多种形态,包括球形、三角形、五边形、二十面体(规则形状和不规则形状)以及纳米棒,平均尺寸在27 ~ 52 nm之间。此外,AuNPs/ExGj在由联苯胺衍生的非处方商业染料的光降解中产生了高效的催化剂。以太阳光和白光LED (WhL)为辐射源,反应时间为2小时,光催化效率分别为94.9%和99.8%。
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引用次数: 0
The mechanism of efficient removal of Th(IV) in solution by amino-functionalized attapulgite: complexation-coordination 氨基功能化凹凸棒土高效去除溶液中Th(IV)的机理:络合-配位
IF 5.4 3区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2026-01-24 DOI: 10.1016/j.inoche.2026.116223
Yuesong Han , Jingyi Sun , Xinghui Wang , Yishuo Zhang , Lingling Peng , Guo feng Wang , Bo Liu , Hao Jiang , Xiaoliang Liu , Yibao Liu , Yuhui Liu , Xiaoyan Li
Thorium exhibits notable environmental and health risks as a result of its prolonged half-life and radioactive toxicity, which renders the remediation of thorium-laden wastewater highly significant. A novel economical, efficient and environmentally friendly Th (IV) adsorbent was synthesized by one-step method using 3-aminopropyltriethoxysilane(APTES) as modifier to functionalize attapulgite(ATP). Characterization analysis results demonstrated that the prepared material possessed a distinct rod-shaped morphology, abundant amino and hydroxyl groups on the surface, and had good adsorption for Th(IV) in wastewater. At room temperature, the adsorption capacity of APTES/ATP for Th(IV) reached 1521.98 mg/g. The results of adsorption kinetics, adsorption isotherms and thermodynamics showed that the reaction of APTES/ATP with Th(IV) conformed to the pseudo-second-order kinetics and Langmuir isothermal adsorption model. The adsorption process of Th(IV) by this material was a monolayer endothermic reaction. The adsorption mechanism mainly involves the complexation and coordination of Th(IV) with amino, OH-and Si-OH groups in APTES/ATP, which can effectively remove Th(IV) in wastewater.
由于钍的半衰期延长和放射性毒性,它具有显著的环境和健康风险,因此对含钍废水的修复具有重要意义。以3-氨基丙基三乙氧基硅烷(APTES)为改性剂对凹凸棒土(ATP)进行功能化,采用一步法合成了一种经济、高效、环保的新型Th (IV)吸附剂。表征分析结果表明,制备的材料具有明显的棒状形貌,表面具有丰富的氨基和羟基,对废水中的Th(IV)具有良好的吸附性能。室温下,APTES/ATP对Th(IV)的吸附量达到1521.98 mg/g。吸附动力学、吸附等温线和热力学结果表明,APTES/ATP与Th(IV)的反应符合准二级动力学和Langmuir等温吸附模型。该材料对Th(IV)的吸附过程为单层吸热反应。吸附机理主要涉及Th(IV)与APTES/ATP中的氨基、oh -和Si-OH基团的络合配位,能有效去除废水中的Th(IV)。
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引用次数: 0
Hydrothermal assisted in-situ growth of faceted titania on Ti3C2 surface: Exploration of photocatalytic mechanism for the removal of HAMLA-550 insecticide 水热辅助二氧化钛在Ti3C2表面原位生长:光催化去除HAMLA-550杀虫剂的机理探讨
IF 5.4 3区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2026-01-23 DOI: 10.1016/j.inoche.2026.116204
C.P. Prathibha , Srinivas Mallapur , B.M. Rajesh , Sanjeev P. Maradur , Sakthivel Kandaiah , S. Girish Kumar
The synthesis of titania crystals from the conventional titanium precursors (alkoxides, halides) is a challenging task as the rapid hydrolysis leads to aggregates in the solution phase. In this context, Ti3C2 MXene emerged as a versatile precursor owing to their inherent sheet-like structure and easy crystallization of TiO2 from its surface under the moderate reaction conditions. The titania formation was evidenced for 16 h of hydrothermal reaction time, while the longer reaction time (30 h) showed the presence of TiO2 with co-exposed (001) and (101) facets under the assistance of NaBF4. It was revealed that the Ti3C2/TiO2 obtained at low reaction time (16 h) had an extremely negative surface charge density, which favoured the pollutant adsorption and degradation process. The electron paramagnetic spectroscopic studies indicated the presence of oxygen vacancies and Ti3+ sites, which facilitated the spatial separation of electron-hole pairs. The formation of Schottky contact between the Ti3C2 and TiO2 was confirmed by computational analysis, which additionally contributed to the overall efficiency. The findings of the present work might open an avenue for the synthesis of co-exposed faceted crystals using MXenes substrate under the wet-chemical approaches.
从传统的钛前驱体(烷氧化物,卤化物)合成钛晶体是一项具有挑战性的任务,因为快速水解会导致溶液中的聚集体。在这种情况下,Ti3C2 MXene由于其固有的片状结构和在中等反应条件下易于从其表面结晶TiO2而成为一种多功能前驱体。在水热反应16 h时,二氧化钛生成,而在较长的反应时间(30 h)下,在NaBF4的辅助下,二氧化钛以(001)和(101)面共暴露存在。结果表明,在较低的反应时间(16 h)下得到的Ti3C2/TiO2具有极负的表面电荷密度,有利于污染物的吸附和降解过程。电子顺磁谱研究表明,氧空位和Ti3+位点的存在促进了电子-空穴对的空间分离。计算分析证实了Ti3C2和TiO2之间形成了肖特基接触,这也有助于提高整体效率。本工作的发现可能为湿化学方法下利用MXenes衬底合成共暴露的多面晶体开辟了一条途径。
{"title":"Hydrothermal assisted in-situ growth of faceted titania on Ti3C2 surface: Exploration of photocatalytic mechanism for the removal of HAMLA-550 insecticide","authors":"C.P. Prathibha ,&nbsp;Srinivas Mallapur ,&nbsp;B.M. Rajesh ,&nbsp;Sanjeev P. Maradur ,&nbsp;Sakthivel Kandaiah ,&nbsp;S. Girish Kumar","doi":"10.1016/j.inoche.2026.116204","DOIUrl":"10.1016/j.inoche.2026.116204","url":null,"abstract":"<div><div>The synthesis of titania crystals from the conventional titanium precursors (alkoxides, halides) is a challenging task as the rapid hydrolysis leads to aggregates in the solution phase. In this context, Ti<sub>3</sub>C<sub>2</sub> MXene emerged as a versatile precursor owing to their inherent sheet-like structure and easy crystallization of TiO<sub>2</sub> from its surface under the moderate reaction conditions. The titania formation was evidenced for 16 h of hydrothermal reaction time, while the longer reaction time (30 <em>h</em>) showed the presence of TiO<sub>2</sub> with co-exposed (001) and (101) facets under the assistance of NaBF<sub>4</sub>. It was revealed that the Ti<sub>3</sub>C<sub>2</sub>/TiO<sub>2</sub> obtained at low reaction time (16 h) had an extremely negative surface charge density, which favoured the pollutant adsorption and degradation process. The electron paramagnetic spectroscopic studies indicated the presence of oxygen vacancies and Ti<sup>3+</sup> sites, which facilitated the spatial separation of electron-hole pairs. The formation of Schottky contact between the Ti<sub>3</sub>C<sub>2</sub> and TiO<sub>2</sub> was confirmed by computational analysis, which additionally contributed to the overall efficiency. The findings of the present work might open an avenue for the synthesis of co-exposed faceted crystals using MXenes substrate under the wet-chemical approaches.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116204"},"PeriodicalIF":5.4,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074381","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
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Inorganic Chemistry Communications
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