NEW JOURNAL OF CHEMISTRY
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2025
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IF 2.5
Yuli Jing,Yufei Li,Junwen Chen,Kai Cui,Peng Wu,Xiaohong Li
The demand for biodegradable plastics is increasing in line with the growth in environmental protection measures. Consequently, the demand for 1,4-butanediol (BDO), the upstream key raw material for biodegradable plastics, has increased significantly. BDO can be obtained through deep hydrogenation of maleic anhydride (MA). However, due to the complicated network involved in the MA hydrogenation reaction, it is rather difficult to obtain BDO with satisfactory yield via the one-pot deep hydrogenation of MA. In this work, Cu-0.03Fe/SiO2 catalysts were prepared by hydrothermal and co-precipitation methods and applied to the one-pot deep hydrogenation of MA to BDO, affording 92.7-94.4% BDO yield under mild conditions (190 °C, 5 MPa of H2 pressure). This value surpasses the results reported in the literature up to now. Moreover, the Cu-0.03Fe/SiO2 catalyst prepared by a modified hydrothermal method can be reused for at least four times without any distinct loss in activity or selectivity to BDO. A series of techniques were adopted to characterize the Cu-Fe/SiO2 catalysts to gain insights into the structure-performance relationship in the MA hydrogenation to BDO.
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NEW JOURNAL OF CHEMISTRY
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2025
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IF 2.5
Ziru Shao,Shuangfei Zhang,Deyong Wu
Single-atom catalysts (SACs) have been increasingly investigated in Fenton-like reactions for emerging pollutants degradation. Herein, single atom Cu anchored on porous polymeric carbon nitride (SA-Cu/PCN-α) was prepared for peroxymonosulfate (PMS) activation on tetracycline (TC) removal. The as-prepared composites were comprehensively characterized by SEM, TEM, XRD, XPS, and EDS, confirming the successful incorporation of Cu single atoms and the formation of a porous heterostructure. SA-Cu/PCN-α efficiently activated peroxymonosulfate (PMS) to degrade TC, with a pseudo-first-order rate constant k of 0.843 min⁻¹-18.7-fold higher than that of pure PCN (0.045 min⁻¹). Mechanistic studies revealed that Cu single atoms modulated the electronic structure of PCN, promoting charge separation and generating abundant reactive oxygen species (ROS, primarily 1 O 2 and O 2 •-). Static experiments indicated that the degradation efficiency remained above 80% under wide ranges of pH (3-11) and PMS dosage (0.5-2.0 mM) within 10 min. The catalyst retained 80% activity after five cycles, demonstrating its stability.Overall, this work designs Cu SACs with promising implications for wastewater treatment.
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Nature Communications
·
2025
·Vol. 16
·期 1
·1-12
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IF 15.7
Wu Lei,Dang Kun,Li Qiaozhen,Xu Yi,Zhang Yuchao,Zhao Jincai
Semiconductor-based photoelectrochemistry commonly relies on efficient interactions between semiconductor surfaces and adsorbates for promoting charge transfer and efficiently activating inert bonds. But at the repulsive interfaces (e.g., between like-charged substrates and electrodes), such interactions cannot be achieved. Contrary to this paradigm, we find that the van der Waals interaction between a series of N-coordinated Cu complex cations and BiVO 4 photoanodes results in a high photovoltage of 0.53 V and charge transfer efficiency of 96%, along with the photocurrent density approaching the theoretical limit of BiVO 4 . This non-covalent interaction enables the universal generation of nitrogen-centered radicals from directly cleaving native N−H bonds and generates N–N coupling products with a Faradaic efficiency exceeding 96%. Its practical application is further demonstrated in an amplified photoelectrochemical reactor, generating a photocurrent of 409 mA and a yield rate of 6069 μmol h −1 for hydrazine production, which is competitive with most reported N−N coupling methods.
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Haidong Yu,Zhiqiang Hou,Longchao Zhuo,Xijun Liu,Yabin Zhang
Microplastic accumulation in water bodies is posing a serious threat to public health. Their chemical inertness impairs the effectiveness of current micro/nano-material-based remediation strategies. Especially in urban drinking water systems, microplastics constantly released and accumulated together with the complexity of pipeline networks challenges the recyclability and long-term stability of remediation materials and technology. To address this, Cu-single-atom magnetic Janus microparticles (CuMJMs) with flower-like crown morphology are engineered meticulously via a step-by-step strategy involving solvothermal growth and chemical deposition. The resulting CuMJMs feature a distinct Janus architecture composed of BiOI nanosheets and Fe 3 O 4 nanoparticles, thereby delivering synergistic magnetic and photocatalytic functionalities. When subjected to a rotating magnetic field, CuMJMs are able to locomote collectively and recover rapidly in confined microenvironments. The incorporation of atomically dispersed Cu single atom not only enhances the number of active sites, but also promotes the separation and migration of photogenerated charge carriers. Such abilities enable CuMJMs to degrade polyethylene (PE) efficiently, achieving a weight loss rate of 53.7 % beyond previous reports. This performance improvement is ascribed to singlet oxygen generation boosted by the Cu single atoms to facilitate oxidative degradation pathways, as supported by electron paramagnetic resonance and active species trapping test. While used in real water matrices, CuMJMs maintain both catalytic activity and magnetic responsiveness, underscoring their robustness and practical potential. This work establishes a new paradigm to active microplastic remediation, merging atomic-level catalytic precision with collective particle behavior to enable scalable and efficient environmental cleanup.
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IEEE SENSORS JOURNAL
·
2025
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IF 4.5
Zelong Li,Xuemei Lin,Zengshan Yu,Guochao Shi,Wenying Zhou,Jiahao Cui,Shan Guo,Mingli Wang
Accurate and sensitive detection of bilirubin, cholic acid, and Alanine aminotransferase (ALT) is essential for the early detection of hepatobiliary diseases in healthcare and the medical field. Integrating surface-enhanced Raman scattering (SERS) with deep learning algorithm has shown great application prospect in the early identification of markers of hepatobiliary diseases. Here, an regular Ag decorated Cu-Ag nanoisland-liked SERS biosensor (Ag@5/Ag-Cu@20/PSS) was constructed by using pattered sappire substrate as a template. An additional 5 mins of Ag nanofilm significantly improved the SERS signal intensity and homogeneity, and the sensitivity was enhanced by two orders of magnitude up to 10-10 M for 4-aminothiophenol (4-ATP). Importantly, deep learning algorithms included temporal convolutional networks (TCN), convolutional neural networks (CNN), recurrent neural network (RNN) and Transformer were used to deeply mine SERS spectral data of bilirubin, cholic acid and ALT, extract effective features, and establish an accurate classification and prediction model. Results indicating that the developed SERS biosensor combined with Transformer model demonstrated excellent accuracy (ACC) of 0.9816±0.0090 in qualitatively and quantitatively analyzing of bilirubin, cholic acid, and ALT. The successful application of the SERS biosensor will help improve the accuracy of early identification of bilirubin, cholic acid, and ALT disease markers and promote the early intervention and treatment of hepatobiliary diseases.
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JOURNAL OF HAZARDOUS MATERIALS
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2025
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IF 11.3
Jian Wang,Yueyang Xu,Erjian Huang,Liming Kong,Jie Li,Yongping Zeng
The combustion of thiophene sulfides in fuel leads to the release of sulfur oxides (SO x ), which pose significant threats to both ecological systems and human health. Adsorption desulfurization has gained considerable attention from researchers due to its mild operating conditions, low production costs, and minimal impact on octane number. This study investigates the use of Cu-BTC as a platform for developing a novel adsorbent aimed at efficiently removing thiophenic compounds from fuel. Aluminum atoms were incorporated into the framework of Cu-BTC to create micro/mesoporous Al/Cu-BTC. Subsequently, the π-complexation adsorbent Al/Cu(I)-BTC, featuring Lewis acid sites, was synthesized through the in-situ reduction of Al/Cu-BTC using sodium thiosulfate. The adsorption properties of Al/Cu(I)-BTC for thiophene were assessed through both batch and breakthrough experiments. Al/Cu(I)-BTC-0.10(0.28) demonstrated exceptional adsorption performance. The static and dynamic adsorption capacities of thiophene at 500 and 200 ppm were 18.54 mg S/g and 9.49 mg S/g, respectively. Importantly, the adsorption capacity of Al/Cu(I)-BTC-0.10 (0.28) for thiophene in fuel containing 500 ppm sulfur remained at 15.45 mg S/g after six regeneration cycles. In the competitive adsorption of toluene, the adsorption capacity of the adsorbent for thiophene in the fuel containing 200 ppm sulfur was 7.84 mg S/g.
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SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2025
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IF 4.6
Yi Zhong,Jie Li,Pei Xu,Yantao Lou,Xingchen Zhang,Haibing Ji,Yuanjie Teng
Semiconductors offer advantages as surface-enhanced Raman scattering (SERS) substrates, including high stability and low cost. However, their intrinsic plasmonic resonance is inherently weak due to bandgap limitations, where valence electrons can only be excited to the conduction band under specific conditions. Consequently, their SERS enhancement mechanism primarily relies on charge transfer processes at the material-molecule interface, resulting in enhancement factors typically 1–3 orders of magnitude lower than those of conventional noble metal substrates (e.g., Au, Ag). To address this limitation, this study proposes a semiconductor-metal heterojunction synergistic enhancement strategy. A SERS substrate was designed by constructing a core-shell heterostructure of CuS and metallic Cu (CuS@Cu), aiming to combine efficient charge transfer with strong electromagnetic field enhancement. The results demonstrate that the synthesized CuS@Cu core-shell heterojunction exhibits significantly enhanced Raman activity. The optimization of SERS performance were systematically investigated by tuning precursor concentrations (e.g., CuS colloidal concentration, CuSO₄ concentration). Utilizing a liquid-liquid interfacial self-assembly technique, with n-butyl acetate as the oil phase and an aqueous colloidal dispersion of CuS@Cu nanoparticles as the aqueous phase, large-area, ordered CuS@Cu core-shell heterojunction films were fabricated. Leveraging a selective interfacial CT mechanism between the CuS semiconductor and probe molecules (e.g., Rhodamine B (RhB), Methylene Blue (MB), Malachite Green (MG)), this substrate enables specific enhancement of their SERS signals (EF ∼ 10 5 for RhB). Quantitative limits of detection reached 1 × 10 −7 mol/L, 3.16 × 10 −7 mol/L, and 3.16 × 10 −6 mol/L for RhB, MB, and MG, respectively. Also, the substrate exhibits high reproducibility and homogeneous SERS response (RSD < 4.5 %), ensuring reliable and robust sensing performance. The combination of the controllable liquid-liquid interfacial self-assembly and the heterojunction enhancement effect highlights the significant potential of this substrate for application in portable SERS sensing devices.
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ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
·
2025
·Vol. 64
·期 27
·e202425601
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IF 16.9
Yuemei Li,Shi-Yu Guo,Hongfei Gu,Bingyu Wang,Peiwu Su,Xiuming Zhang,Haoqing Zhang,Shuping Zhang,Fanzhi Yang,Jia Liu,Qing-An Chen,Jiatao Zhang
Visible light photoredox catalysis has become a rapidly emerging area owing to its potential of using sunlight to tame previously hard-to-harness radicals for organic synthesis. At present, such a blueprint faces a significant challenge, namely how to accomplish thermodynamically demanding reactions with sunlight encompassing a wide range of low-energy photons. Here, we report a new reaction framework to overcome this bottleneck through decoupling the thermodynamic limits of photoreduction from photoexcitation. This is fulfilled based on the construction of a heterogeneous photocatalyst Cu@CdS possessing in situ-formed surficial polysulfide species (including S 3 •− and S 4 2− ), which can efficiently harvest solar energy via plasmonic absorption of Cu while manifest sufficient redox potential for activating inert aryl bromides/chlorides enacted by excited polysulfides. We demonstrate that this designed material composes a potent photoredox catalyst for efficient aryl cross-coupling, borylation, hydrogenation, as well as Birch-type dearomatization reactions, with good recyclability and stability. In particular, when exclusively using natural sunlight as an energy source, the product yield can still reach up to 90%. Our findings introduce a straightforward yet viable way to progress toward the century-long dream of leveraging natural sunlight to produce structurally complex organic molecules, just like plants on Earth. Graphical Chemists have long aspired to construct complex organic compounds the way that plants do by harnessing natural sunlight as an energy source. This study presents an advancement toward this goal via synergistic exploitation of the plasmonic absorption of Cu and the unique redox potentials of excited polysulfide species (S 3 •− and S 4 2− ) on semiconductor surfaces to decouple the thermodynamic limits of photoreduction from photoexcitation.
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FOOD CHEMISTRY
·
2025
·
IF 9.8
Ying Yang,Wenqi Zhang,Lu Zhang,Ziyan Shi,Dexiang Wei,Weiwei Xia,Xiaoguang Xu
Ochratoxin A (OTA) is a highly toxic and bioaccumulative mycotoxin found in grains, threatening food safety. Surface-enhanced Raman spectroscopy (SERS) combined with immunochromatography enables rapid and sensitive detection of OTA. This study aimed to develop a novel core-shell-satellite SERS probe (Au@Ag@(Cu-ZIF-8)-AuNPs) for OTA detection. The structure comprised an Au@Ag nanoparticle core, coated with Cu-doped ZIF-8 and gold nanosatellites. This design generated dense electromagnetic “hot spots” through plasmonic coupling between the core and satellites. Simultaneously, Cu doping reduced the bandgap of ZIF-8, thus enhancing charge transfer efficiency for chemical signal amplification. The dual electromagnetic-chemical enhancement achieved a detection range of 0.1 fg/mL–1.0 μg/mL and an ultralow detection limit of 0.057 fg/mL, thereby surpassing the detection limits of conventional methods. This innovative probe, with its high sensitivity and wide dynamic range, offers a powerful platform for mycotoxin monitoring, hence advancing SERS-based rapid detection technologies crucial for food safety.
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JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
·
2025
·
IF 6
Zhirui Xu,Xianxing Ju,Xin Zou,Pengfei Su,Hao Chen,Mingxiang Chen,Qing Wang
The increasing power density of high-performance electronics induces significant thermal stress mismatches among conventional packaging materials, thereby intensifying the demand for tunable, low-stress materials with high thermal conductivity to ensure packaging reliability. Copper-silicon carbide (Cu-SiC) composites have emerged as promising candidates. While composite electrodeposition offers an effective route to mitigate thermal issues inherent to traditional fabrication techniques, challenges persist in achieving uniform SiC dispersion, high incorporation efficiency, and defect-free heterogeneous interfaces at elevated deposition rates. Herein, an improved patterning electrodeposition strategy with cetyltrimethylammonium bromide (CTAB)-assisted ternary-additive electrolyte was proposed for the rapid fabrication of defect-free Cu-SiC composites. Electrochemical analyses revealed CTAB competitively adsorbed with other additives on cathodic active sites, displacing accelerators and cooperating with suppressors to inhibit Cu matrix electrodeposition, refining grains (<1 μm) and promoting dense nucleation. By systematically tuning critical parameters—current density, CTAB concentration, and SiC content—Cu-SiC coating quality was significantly improved. The optimized process yields a uniform Cu-SiC composite coating with a high SiC content (35.9 wt%), dense Cu matrix with (111) preferred orientation, high deposition rate (65.3 μm/h), defect-free heterogeneous interfaces, a low coefficient of thermal expansion (7.2 × 10 −6 /°C), and minimal warpage (0.08 %).
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CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Sibo Chen,Zhi Yang,Jiadong Chen,Jihai Liao,Siyuan Yang,Feng Peng,Liang-Xin Ding,Guangxing Yang,Shengsen Zhang,Yueping Fang
Heterogeneous nano-metal structures are widely used in the field of photocatalysis as an efficient cocatalyst, but the structure–activity relationship has not been elucidated clearly. In this work, a classical CuCo@C nanoparticle with a core of bimetallic CuCo and a carbon shell was used as a cocatalyst to explore and reveal the mechanism of interfacial effect for enhanced photocatalytic hydrogen evolution . It was found that the bimetallic CuCo had a heterogeneous structure with abundant Cu-Co interfaces. The desirable visible-light-driven photocatalytic hydrogen evolution rate of CuCo@C/g-C 3 N 4 was much higher than that of Cu@C/g-C 3 N 4 , Co@C/g-C 3 N 4 , and superior to that of the control group loaded with 1 wt% Pt (Pt/g-C 3 N 4 ). According to the experimental characterizations and density functional theory calculations, electrons were enriched at the Cu-Co interface, which can promote the electron-hole pairs separation and accelerate charge transfer of the g-C 3 N 4 host photocatalysts. On the other hand, the surface carbon layer and Cu-Co interface modulated the H adsorption free energy on the CuCo@C, which was favorable for hydrogen evolution. It is conceivable that further investigating and tuning different metal interfaces will facilitate the large-scale application of bimetallic cocatalysts.
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ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Xiangshi Sun,Kongtong Yu,Yulin Zhou,Shiyan Dong,Wenji Hu,Yating Sun,Yuhuan Li,Jing Xie,Robert J. Lee,Fengying Sun,Yifan Ma,Shengnian Wang,Betty Y. S. Kim,Yifan Wang,Zhaogang Yang,Wen Jiang,Youxin Li,Lesheng Teng
The use of superoxide dismutase (SOD) is currently limited by its short half-life, rapid plasma clearance rate, and instability. We synthesized a small library of biofriendly amphiphilic polymers that comprise methoxy poly(ethylene glycol)-poly(cyclohexane-1,4-diyl acetone dimethyleneketal) (mPEG-PCADK) and mPEG-poly((cyclohexane86.7%, 1,5-pentanediol13.3%)-1,4-diyl acetone dimethylene ketal) (PK3) for the targeted delivery of SOD. The novel polymers could self-assemble into micellar nanoparticles with favorable hydrolysis kinetics, biocompatibility, long circulation time, and inflammation-targeting effects. These materials generated a better pH-response curve and exhibited better hydrolytic kinetic behavior than PCADK and PK3. The polymers showed good biocompatibility with protein drugs and did not induce an acidic microenvironment during degradation in contrast to materials such as PEG-block-poly(lactic-co-glycolic acid) (PLGA) and PLGA. The SOD that contained reverse micelles based on mPEG2000-PCADK exhibited good circulation and inflammation-targeting properties. Pharmacodynamic results indicated exceptional antioxidant and anti-inflammatory activities in a rat adjuvant-induced arthritis model and a rat peritonitis model. These results suggest that these copolymers are ideal protein carriers for targeting inflammation treatment.
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