Journal of the Iranian Chemical Society
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2026
·Vol. 23
·期 8
·258
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IF 2.4
Yu Haiyan,Zhang Li,Jia Yongpeng,Tian Ye
Two coordination polymers, CP1 and CP2, based on Cu(II) and Zn(II) ions, were synthesized and structurally characterized as fluorescent sensors for 1,10-phenanthroline, an important nitrogen-containing chelating agent widely used in coordination chemistry and industrial systems. Both materials exhibit good crystallinity, thermal stability, and intrinsic fluorescence. Their fluorescence sensing behaviors toward 1,10-phenanthroline were systematically investigated in aqueous media. CP1 and CP2 show high selectivity and sensitivity toward 1,10-phenanthroline, with Stern–Volmer constants of 1.11 × 10⁵ M⁻¹ and 6.95 × 10⁴ M⁻¹, and detection limits of 3.2 µM and 4.5 µM, respectively. In addition, both coordination polymers display good anti-interference ability and recyclability. Comparative studies reveal that the different sensing efficiencies of CP1 and CP2 are closely related to the distinct electronic properties of the Cu(II) and Zn(II) centers. Mechanistic investigations indicate that the fluorescence quenching mainly arises from coordination interactions between 1,10-phenanthroline and the metal centers. This work not only demonstrates the potential of coordination polymers as effective fluorescent sensors for phenanthroline detection, but also provides insight into the role of metal centers in regulating fluorescence sensing performance.
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ANALYTICAL AND BIOANALYTICAL CHEMISTRY
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2026
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IF 4.1
Xiang Meng,Wang Qingyue,Li Chengjie,Wu Buyong,Qin Mengyu,Zhu Yancheng,Qian Zhiyi,Yang Zhou,Dong Shuang
In this work, we develop a new type of Zn-based electrode material, i.e., mulberry-shaped nanostructured zinc metal–organic frame/zinc sulfide (Zn-MOF/ZnS) heterojunction, which was synthesized via a green and convenient one-pot solvothermal method with common zinc salts as the metal precursor, 1,3,5-benzenetricarboxylic acid (H 3 BTC) as the organic ligand, and thioacetamide (TAA) as sulfur source. The porous structure of zinc metal–organic frame (Zn-MOF) can effectively adsorb and enrich naphthol molecules, accelerating material transport. Meanwhile, the integration of Zn-MOF with zinc sulfide (ZnS) to form the heterojunction interface can promote rapid electron transfer and improve the efficiency of electrocatalytic reactions. When used for electrochemical detection of naphthol isomers in water, the sensing performance of the resultant Zn-MOF/ZnS electrode is significantly improved in comparison with monolithic Zn-MOF and ZnS electrodes. The sensor achieves a detection linear range of 0.4–70 µM, with low detection limits of 30 nM for 1-naphthol (1-NAP) and 10 nM for 2-naphthol (2-NAP), respectively. In addition, the sensor has acceptable anti-interference ability, repeatability, and long-term stability, which can be used for the actual sensing of naphthol isomers in environmental water. This study provides new ideas and references for the development of high-performance electrode material for on-site monitoring of pollutants in water quality. Graphical
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JOURNAL OF NANOBIOTECHNOLOGY
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2026
·
IF 15
Xie Xiaoling,Xiang Zhenyang,Yang Ruhui,Wu Xuanlu,Guo Jinyu,Fang Ruolin,Zan Xingjie,Huang Wenjuan,Tong Yuhua
Corneal neovascularization (CNV) is one of the leading causes of corneal blindness, affecting millions of people worldwide. Anti-vascular endothelial growth factor agents, such as Bevacizumab (Beva), offer high specificity and low side effects. However, their limited ability to penetrate the corneal barrier necessitates invasive administration, significantly restricting their clinical application. Herein, we engineered (Beva&C₂G₂R₉)@Zn nanoparticles formed by co-assembling Beva, C₂G₂R₉ peptide and Zn 2+ , which decrease in size over time, as an efficient strategy for noninvasive Beva delivery across the corneal barrier to treat CNV. By combining various technologies (DLS, TEM, XPS, FTIR, and computer simulation), we discovered that the coordination between Beva and Zn 2+ drives the nanoparticle formation, while the C₂G₂R₉ peptide facilitates its size evolution. Compared to size-stable nanoparticles of Beva@Zn and (Beva&R₉)@Zn, (Beva&C₂G₂R₉)@Zn nanoparticles exhibit rapid cellular internalization, efficient lysosomal escape, and effective corneal barrier penetration, leading to efficiently inhibit HUVEC cell migration and tube formation. Importantly, in a rat alkali-burned CNV model, (Beva&C₂G₂R₉)@Zn nanoparticles exhibited superior efficacy in inhibiting corneal neovascularization compared to size-stable nanoparticles, with the lowest inflammation index. The results of this study highlight the importance of controlling the size of nanoparticles to enable non-invasive delivery of macromolecular drugs across the corneal biological barrier, offering new insights for the design of future nanoparticle-based drug delivery systems. Graphical
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FIBERS AND POLYMERS
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2026
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IF 3.1
Liu Xing,Li Wanying,Li Guoxing,Li Ting-Ting,Lou Ching-Wen,Lin Yan-Yu
Dopamine (DA) abnormality is closely linked to Parkinson’s and other neurodegenerative diseases. Establishing a sensitive and highly selective DA detection platform holds significant importance for clinical diagnosis and disease prevention. This study successfully prepared Fe–BiVO 4 /BiOCl-CF/FeOOH flexible composite electrode based on carbon fiber fabric (CF) substrates via electrospinning, hydrothermal synthesis and impregnation-in situ growth methods. Corresponding photoelectrochemical (PEC) sensors were constructed for quantitative DA detection. The Fe–BiVO 4 /BiOCl heterojunction significantly suppressed photogenerated carrier recombination. FeOOH, functioning as the hole transport layer, further optimized charge separation efficiency, while the three-dimensional porous structure of CF shortened the electron transport path and reduced electrical resistance. The constructed PEC sensor exhibits favorable sensing performance for DA in 0.1 M phosphate buffer (pH = 7.0). Within the concentration range of 1–40 μM, the photocurrent response shows an excellent linear correlation with DA concentration (R 2 = 0.99446), and the detection limit is determined to be 0.038 μM (3σ/S). Moreover, the sensor exhibits negligible interference from common coexisting substances and retains over 80% of its initial photocurrent efficiency after 11 days of continuous operation, demonstrating satisfactory selectivity and stability. This work provides a feasible strategy for constructing highly sensitive, portable PEC sensors for DA detection. Graphical
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Nano-Micro Letters
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2026
·
IF 38.5
Yuxuan Jiang,Bingxin Sun,Mohsen Shakouri,Bin He,Wang Zhang,Ran Wang,Tianxiao Sun,Huan Pang
Aqueous zinc-iodine batteries (AZIBs) show promise for grid-scale energy storage, but they are hampered by polyiodide shuttling, sluggish iodine redox kinetics, and irreversible active-site poisoning caused by uncontrolled adsorption. We provide a comprehensive screening of M 1 (M 1 = P, S, B) heteroatom dopants, and P is identified as the best candidate for achieving coordination-tuned, moderate adsorption that balances adsorption and catalytic activity while mitigating site poisoning. Using phytic acid as both the P source and an etchant, we create a universal in situ approach to core–shell single-atom catalysts (M 2 -P-CSNC, M 2 = Fe, Co, Ni). The unique core–shell structure achieves stable confinement of polyiodides, rapid ion transport, and protection of active sites, while in situ P doping precisely regulates the local electronic environment and d -band center of the Fe–N x active centers. In situ characterization confirms that Fe–P-CSNC has a strong reversible anchoring ability for polyiodides, which can significantly accelerate redox kinetics. The optimized Fe–P-CSNC/I 2 exhibits almost no capacity decay after 20,000 cycles at a current density of 2 A g −1 . This work’s facile heteroatom doping strategy for electronic modulation offers a reference for high-performance catalyst design in conversion-type energy storage systems. Kindly check and confirm the edit made in the title.1. We have checked and confirmed the edited title.2. We found some issues with Figure 3d and have uploaded the revised image as an attachment.
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Nature Communications
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2026
·
IF 18.1
Tang Huangcong,Feng Zemin,Feng Di,Yao Shunchun,Shen Kui,Chen Liyu,Li Yingwei
Direct seawater electrolysis offers an attractive route for sustainable hydrogen production, yet its practical implementation remains constrained by the corrosive nature of chlorion (Cl − ). Here, we reveal that trace amounts of Cl − , rather than being detrimental, can play a constructive role in directing the structural evolution of transition-metal catalysts. Guided by this insight, NiS 2 nanoparticles with controlled loading amounts on NiFe-MOF nanosheets (denoted as NiFe-MOF-S) are designed to enable fine regulation of Cl − proximity to the active metal sites. This design promotes the in situ reconstruction of catalyst into a dense γ-NiFeOOH phase with short Ni–Fe bond lengths, which triggers a mechanistic shift from the lattice-oxygen-mediated pathway to oxide path mechanism. NiFe-MOF-S achieves high oxygen evolution performance in alkaline seawater (1 M KOH + seawater), requiring a much lower overpotential of 213 mV to reach 500 mA cm −2 in alkaline seawater than that in alkaline water (1 M KOH) (268 mV). Furthermore, the electrocatalyst demonstrates high durability with a degradation rate of only 1.4 μV h −1 for over 7000 hours at 1.0 A cm −2 in alkaline seawater. A kilowatt-level alkaline seawater electrolyzer equipped with NiFe-MOF-S/NF operates reliably for over 1500 hours at industrially relevant conditions.
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Nature Communications
·
2026
·
IF 18.1
Ji Guanrui,Zhang Zhen,Li Juan,Liu Xiaolei,Wang Zeyan,Mao Liang,Chen Xincheng,Wei Wei,Li Baojun,Lou Zaizhu
As a vital industrial feedstock, carbon monoxide (CO) is widely employed in pharmaceutical, electronic and fine chemical synthesis, yet its efficient production in high purity remains challenging. Here we report a solar-driven route to high-purity CO from formic acid using a nonmetallic plasmonic photocatalyst based on aluminum-doped tungsten oxide (Al-W 18 O 49 ). Plasmon-derived hot electrons drive the cleavage of C-H in adsorbed formic acid, while a concomitant photothermal effect markedly accelerates the overall kinetics. This synergistic mechanism lowers the apparent activation energy of HCOOH dehydration to 10.5 kJ mol −1 , substantially below its thermocatalytic barrier of 80.6 kJ mol −1 , and enables a CO production rate of 1.88 mol g −1 h −1 under 1 W cm −2 irradiation. A continuous-flow reactor operated stably for 350 hours, delivering CO at a maximum rate of 2000 L m −2 h −1 under concentrated sunlight. This work develops a practical photocatalytic system for the sustainable production of high-purity CO.
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Journal of Inorganic and Organometallic Polymers and Materials
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2026
·
IF 6
Li Qiaomei,Hong Wei,Wei Tianyu,Fan Yupeng,Luo Yuhui,Li Jinlou,Qiao Zhihua,Jia Xuemeng,Zhang Dong-En
Metal-organic frameworks (MOFs) have shown great promise for water treatment owing to their tunable porous structures and abundant active sites. However, the practical application of conventional MOFs, such as HKUST-1, is still limited by insufficient structural stability in aqueous environments and poor recoverability in powder form. Herein, a coordination-induced in situ self-assembly strategy was developed to fabricate structurally stable carboxymethyl chitosan (CMCS)@HKUST-1/polyvinylidene fluoride (PVDF) electrospun fibers. In detail, Cu 2+ was first incorporated into PVDF matrix by electrospinning to obtain Cu 2+ /PVDF fibers, which were subsequently immersed in a mixed ligand solution containing 1,3,5-benzenetricarboxylic acid (H 3 BTC) and CMCS, enabling the in situ growth of CMCS-modified HKUST-1 on the fiber matrix. CMCS participated in the coordination-induced assembly process mainly through -COOH/-COO⁻, thereby strengthening the Cu-O coordination environment and improving the resistance of HKUST-1 to water-induced structural degradation. Meanwhile, the flexible CMCS chains and their hydrophilic functional groups enhanced the interfacial interaction, wettability, and accessibility of adsorption sites within the composite fibrous network. The practical potential of CMCS@HKUST-1/PVDF electrospun fibers was evaluated through the treatment of simulated dyeing wastewater, in which it exhibited a high Congo red adsorption capacity of 173.08 mg/g and maintained robust structural stability under elevated temperature treatment at 70 ℃, as well as in aqueous environments over a pH range of 6–10. This work provides a facile and effective strategy for constructing recoverable, structurally stable, and high-performance MOF-based fibrous adsorbents for water treatment applications.
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JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2026
·
IF 3.1
Hou Yuancheng,Li Ming,Wang Yingjia,Song Qingqing
To address the limitations of TiO 2 as promising material that can provide photocathodic protection (PCP) for metals, a novel technique of photo-assisted electrochemical doping (PED) is developed to prepare Na-doped TiO 2 . Introducing light irradiation during electrochemical doping at an appropriate voltage leads to higher incorporation of sodium into TiO 2 , as well as the generation of more oxygen vacancies and Ti 3+ defects. These changes result in a narrower bandgap, enhanced photogenerated electron-hole separation, and faster electron transfer, ultimately improving the PCP performance of the materials. The mechanism of PED has been analyzed. The Na-doped TiO 2 prepared via PED at the optimal voltage of -1.4 V vs. SCE exhibits a photocurrent density of 180 µA/cm 2 and an open-circuit potential of -0.408 V when coupled with 316 stainless steel (316 SS) in simulated seawater without a hole scavenger. These values provide more effective cathodic protection for 316 SS than those obtained with pristine TiO 2 or with Na-doped TiO 2 prepared via conventional electrochemical doping in the absence of light. This work offers a facile and effective strategy to improve the doping reaction efficiency for preparing Na-doped TiO 2 through electrochemistry method.
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Soft Science
·
2026
·Vol. 6
·期 3
·N
·
IF 15.9
Kaiyan Luo,Yupeng Hu,TengZhou,Xiaonan Liu,Maoxia Lu,Zhi Lei,Daohai Zhang,Wei Gong
The rapid development of information technology has given rise to an urgent demand for high-efficiency electromagnetic wave absorbing materials. It is a challenge for wave-absorbing materials that address the electro-magnetic synergistic effect to develop high-efficiency electromagnetic wave (EMW) materials that can not only reduce the electromagnetic interference generated by electronic devices in daily use but also exhibit a certain degree of stealth in the military field. To study and prepare high-efficiency EMW materials, this paper uses the solvothermal method to prepare NiCo-HHTP, and systematically investigates their electromagnetic wave absorption performance and absorption mechanism. The research shows that the composite material NCH1 obtained in this experiment achieves a minimum reflection loss (RLmin) value of -56.99 dB and an effective absorption bandwidth of 6.51 GHz at a relatively thin matching thickness of 2.9 mm. The polarization effect endows it with good conductive loss, and the magnetic central metal gives it a certain degree of magnetic loss. The synergistic effect of dielectric loss and magnetic loss makes the material exhibit a good wave-absorbing effect. This simple and efficient preparation method provides a new strategy for the preparation and application of metal-organic framework materials in EMW absorption.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
·
IF 19.7
Pengfei Li,Yang Deng,Zhinan Xia,Ruijuan Bian,Nianbo Zhang,Yu Zhang,Xu Wu
A series of COFs with different degrees of in-plane electron asymmetry distribution were successfully constructed. • NS-COF exhibits the strongest in-plane and intramolecular asymmetric polarization and donor-acceptor interactions. • Strongest local asymmetric electron distribution builds side-on Yeager-type O 2 bonding sites with enhanced adsorption. • NS-COF achieves outstanding H 2 O 2 photosynthesis of 7882 μmol·g −1 ·h −1 in pure water and air without sacrificial agents. Conventional photocatalysts generally rely on optimizing charge-transfer processes or specific oxygen activation pathways, while the molecular-level regulation of coupled excited-state and oxygen activation processes remains challenging. Simultaneously regulating charge-transfer and energy-transfer-related oxygen activation processes within a photocatalyst remains a significant challenge. Herein, we present a targeted strategy to finely tailor the asymmetric electron distribution of covalent organic framework (COF) to regulate charge-transfer and energy-transfer-related oxygen activation processes for superior H 2 O 2 photosynthesis. The results reveal that NS-COF regulates excited-state behavior and electron transport dynamics through linkage-controlled electronic modulation. The enhanced in-plane polarization promotes spin-state conversion and intersystem crossing (ISC), facilitating efficient triplet-state generation and energy-transfer-related oxygen activation. Furthermore, the lone-pair electrons of heteroatoms can partially delocalize onto the aromatic backbone, modulating the HOMO and LUMO energy levels and facilitating charge-transfer processes. Additionally, the enhanced local asymmetric electron distribution in NS-COF creates a polarized microenvironment that favors O 2 adsorption in a Yeager-type configuration with strengthened interaction. Upon electron injection, this adsorbed O 2 generates surface-bound •O 2 - species, which undergo subsequent protonation to form *OOH intermediates, thereby promoting the stepwise two-electron oxygen reduction pathway (O 2 → •O 2 - → *OOH → H 2 O 2 ), while also enabling an energy-transfer-related oxygen activation process involving 1 O 2 generation and subsequent H 2 O 2 formation (O 2 → 1 O 2 → H 2 O 2 ). These complementary processes collectively contribute to the enhanced H 2 O 2 production activity, resulting in a superior H 2 O 2 production rate of 10885 μmol g cat. −1 h −1 in pure water and oxygen. The feasibility of regulating complementary charge-transfer and energy-transfer-related excited-state processes provides new perspectives for photocatalysis, optoelectronic devices, and energy storage. Download: Download high-res image (290KB) Download: Download full-size image
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Solar RRL
·
2026
·Vol. 10
·期 14
·e70437
·
IF 4.8
Ye Wang,Hengji Li,Qianwen Cao,Qixu Hu,Lifang Wu,Xiaojie Liu,Ronghui Deng,Tenglong Xu,Chang Xue,Yitian Du,Tianhao Wu,Ihsan Ullah,Selcuk Yerci,Shenghao Wang
While [6,6]-phenyl-C 61 -butyric acid methyl ester (PCBM)/bathocuproine (BCP) is widely used as an electron transport stack in inverted perovskite solar cells (PSCs), its interfacial properties remain insufficiently studied. To clarify whether this interface can be optimized to enhance device performance, this work implements a targeted interfacial passivation strategy utilizing a phenethylammonium iodide (PEAI) interlayer to optimize the PCBM/BCP contact and energy alignment. Density functional theory (DFT) calculations reveal that the adsorption configuration of PEAI on PCBM is dominated by hydrogen bonding between the ammonium group of PEAI and the carbonyl group of PCBM, with an adsorption energy of −1.501 eV. This interfacial modification effectively regulates the PCBM surface morphology, homogenizes interfacial potential distribution, and improves energy level alignment. Mechanistic investigations further indicate that PEAI suppresses trap-assisted recombination while promoting interfacial charge extraction. This optimized strategy yields a power conversion efficiency (PCE) of 22.92% for PSCs based on a 1.62 eV triple-cation mixed-halide perovskite absorber, with open-circuit voltage and fill factor reaching 1.18 V and 84.78%, respectively. Furthermore, PEAI-passivated devices retain 94.1% of their initial PCE after 150 h of continuous illumination. This work establishes a feasible and efficient interface engineering strategy for high-performance and short-to-medium-term stable inverted PSCs.
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