Nature Communications
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2026
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IF 18.1
Liu Xiangyun,Chai Youzheng,Gu Yuwei,Li Yongqi,Wang Xiao,Wang Qiancheng,Zhang Gong,Liu Huijuan,Qu Jiuhui
High-salinity mine water generated during membrane concentration of mine water contains structurally stable complex organic matter that resists removal and mineralization by conventional advanced oxidation processes, ultimately producing low-value by-product salts that hinder the resource utilization pathway. Leveraging the ultraviolet sensitivity of inherent chromophore groups and conjugated structures, this study developed an ultraviolet-activated assisted electrochemical process. By harnessing ultraviolet/oxidant synergies, this approach achieves ~89.9% total organic carbon removal, with minimal performance decay over 1000 hours. Combined with ultraviolet-visible spectroscopy, fluorescence excitation-emission-matrix spectroscopy, fourier transform ion cyclotron resonance mass spectrometer, and model contaminant experiments, this study elucidates an ultraviolet activation and radical attack synergistic mechanism driving organic mineralization. The direct integration of purified brine with bipolar membrane electrodialysis successfully produces acid, high-purity alkali (>99%), and reusable water, thereby closing the loop of impurities removal and resource recovery. This integrated system offers a strong strategy for high-value resource recovery and sustainable mine water management.
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COMPOSITES COMMUNICATIONS
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2026
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IF 8.6
Jiang Guo,Xiuyun Ma,Shaohua Xi,Yong Mao,Yan Zhang,Yukun Sun,Wenling Wu,Jianfeng Zhu
Polymer composites with room temperature magnetoresistance (MR) are attractive for emerging magnetic sensors and information-storage devices in the era of the Internet of Things. In this work, the magnetorsistive polyaniline (PANI) functionalized magnetic Ti 3 C 2 T x Composites were prepared by solvothermal and in-situ polymerization method. By decorating non-magnetic Ti 3 C 2 T x with magnetic Fe 3 O 4 particles and tuning the Fe 3 O 4 loading on Ti 3 C 2 T x , the room temperature magnetoresistance can be effectively controlled. The Ti 3 C 2 T x /PANI (T/P) composites exhibit positive MR of 4.65% at 2 T, while the Fe 3 O 4 –Ti 3 C 2 T x /PANI (FT/P) composites demonstrates negative MR of -11.13% at 2 T with 60 wt% Fe 3 O 4 loading in Fe 3 O 4 –Ti 3 C 2 T x . Structural and morphological characterizations (SEM, TEM, XRD, FT-IR and XPS) confirm the successful fabrication of FT/P composites. The positive MR in T/P is well described by the wave-function shrinkage model, and the negative MR in FT/P composites is quantitatively fitted by the forward interference model. The localization length ( a 0 ), hopping distance (R hop ) and density of states at the Fermi level (N(E F )) are evaluated. The localization length decreases with increasing magnetic field for all samples and is significantly larger in T/P than in FT/P composites. This work demonstrates a simple and effective strategy to achieve tunable negative MR at room temperature PANI composites for magnetic sensing and data-storage applications.
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RSC Advances
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2026
·Vol. 16
·期 13
·12165-12179
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IF 6.1
Waqas Saeed,Ye Tian,Irshad Ahmad Mir,Baoji Miao,Amna Manzoor,Surjyakanta Rana,Xing Chen
Ammonia (NH3) detection at room temperature under varying humidity conditions is crucial for environmental monitoring, industrial safety, and healthcare. However, ammonia detection remains a challenge due to the lack of sensitivity and selectivity of current room temperature based sensors. In this context, Ti3C2Tx MXene and flower-like SnS2 composites were investigated for NH3 sensing. A comparative analysis of multilayered and few-layered nanohybrid composites demonstrated that the few-layered configuration displayed a markedly enhanced response to ammonia. Its larger surface area, higher electrical conductivity, and higher number of active sites contribute to its superior gas diffusion and charge transfer properties. The composite was further functionalized with Nafion (NF) to enhance sensitivity and selectivity under humid conditions. In an optimized NF-functionalized few-layered Ti3C2Tx/SnS2 sensor, we achieved a 12.11 response ratio towards 100 ppm NH3, with a response time of 42 s and a recovery time of 156 s, as well as excellent selectivity towards interfering gases. Reliability tests conducted in humid environments confirmed the excellent operational stability and durability of the proposed sensor. These experimental results demonstrate that the developed few-layered Ti3C2Tx/SnS2/NF nanohybrid composite provides a highly durable, sensitive, and selective platform for NH3 detection in practical applications at room temperature.
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SOLAR ENERGY MATERIALS AND SOLAR CELLS
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2026
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IF 6.6
Tao Zhou,Xianghua Zhao,Jiangfan Liao,Qingrun Xie,Mingli Xu,Tai Li,Guoqiang Lv,Xiufeng Li,Wenhui Ma
The rapid growth of the photovoltaic (PV) industry has resulted in massive generation of silicon wafer debris, posing both environmental and resource-utilization challenges. Achieving sustainable and high-value use of this silicon waste for photoelectrochemical hydrogen evolution reaction (PEC-HER) remains highly desirable yet technically challenging. Silicon wafer debris was etched via a metal-assisted chemical etching (MACE) process to obtain silicon nanowires (Si NWs). The morphology of MoS 2 was further tailored through a polyvinylpyrrolidone (PVP)-assisted hydrothermal method, followed by the formation of MoS 2 /Si NWs heterostructures. This sustainable strategy integrates resource recycling with morphology control and heterostructure engineering, enabling uniform MoS 2 coverage, optimized interfacial coupling, and accelerated charge transfer, thereby enhancing the PEC-HER efficiency. The Nano-MoS 2 /Si NWs exhibited a Tafel slope of 167 mV⋅dec −1 , significantly lower than that of pristine Si NWs (524 mV⋅dec −1 ), indicating accelerated hydrogen evolution kinetics. The hydrogen production rate reached 404.77 μmol cm −2 , corresponding to a 196.3% enhancement compared with Si NWs (136.62 μmol cm −2 ). Finite element analysis further revealed markedly enhanced and uniformly distributed current density and surface H + concentration for MoS 2 /Si NWs, attributed to their abundant exposed active edge sites and improved interfacial charge transfer, which collectively contribute to the enhanced PEC-HER performance. This work advances a sustainable upcycling route that converts PV silicon wafer debris into functional photocathodes and offers a general approach to morphology control and heterostructure engineering for efficient, eco-friendly solar-to-hydrogen conversion.
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ANALYST
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2026
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IF 3.6
Huiqi Zhu,Ying Chen,Weiqing Yang,Zunxiang Zeng,Yuling Hu,Ji Zhang
The inherently weak Raman signals from molecules with small scattering cross-sections pose a significant challenge for surface-enhanced Raman scattering (SERS), a technique that is further limited by its reliance on costly precious metal substrates and exogenous labeling strategies. To address these limitations, this study constructs a Ti3C2–CoFe2O4 heterostructure by anchoring oxidase (OXD)-like CoFe2O4 nanoparticles (NPs) on two-dimensional (2D) conductive Ti3C2 MXene nanosheets. The resulting interface forms a Mott–Schottky junction, which facilitates rapid charge transfer and synergistically enhances both catalytic and SERS performance. Structurally, the 2D Ti3C2 framework provides abundant anchoring sites for the uniform dispersion of CoFe2O4 NPs. This effectively prevents particle aggregation and maximizes the exposure of catalytic active sites, thereby enhancing both stability and catalytic activity. Additionally, the Ti3C2–CoFe2O4 heterojunction effectively suppresses the recombination of charge carriers and promotes the separation of photogenerated charges, generating abundant superoxide anion radicals that oxidize 3,3′,5,5′-tetramethylbenzidine (TMB) for catalytic signal amplification. Therefore, the ingenious combination of nanozymes and SERS technology enables the generation of SERS-active reporters via nanozyme-catalyzed reactions, thus avoiding the need for external labeling modifications. The strategy simultaneously enhances Raman signals through the synergistic effect of photoinduced charge transfer and localized surface plasmon resonance. This Ti3C2–CoFe2O4 heterojunction exhibits integrated OXD-like activity and SERS enhancement, enabling sensitive glutathione (GSH) detection in human serum samples. Through catalytic oxidation of TMB to oxidized TMB, a distinct Raman peak emerges at 1615 cm−1, with its intensity reduction quantitatively correlating with GSH concentration via competitive reactive oxygen species scavenging. Quantitative analysis demonstrates a linear response range of 0.50–200 μmol L−1 and a detection limit of 0.073 μmol L−1, with serum sample recoveries ranging from 94.7%–115%. This study provides a paradigm for designing non-precious metal nanozyme materials with integrated catalytic and SERS capabilities, demonstrating significant potential for practical applications in clinical diagnostics and biosensing.
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PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2026
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IF 7.8
Lidong Wang,Yongyan Sun,Yuting Sun,Changbin Zhang,Guixi Wang,Junnan He,Yan Zhao,Ming Li
Photodynamic therapy (PDT) holds promise for oral squamous cell carcinoma (OSCC) but is limited by the tumor microenvironment─specifically hypoxia, elevated glutathione (GSH), and the lack of tumor-selective photosensitizer activation. To overcome these barriers, we developed a GSH-activated nanoplatform Cu-TCPP(Zn)/Ti3C2Tx for fluorescence imaging-guided synergistic photodynamic/chemodynamic therapy (PDT/CDT). The system is constructed from two-dimensional Cu-TCPP(Zn) MOF nanosheets, where Cu2+ and Zn2+ completely quench the fluorescence and PDT activity of TCPP and surface-anchored Ti3C2Tx MXene. In the TME, overexpressed GSH reduces Cu2+ to Cu+ and abstracts Zn from the Zn–N4 complex, triggering nanocomposite disintegration to restore fluorescence, activate PDT, and simultaneously deplete GSH to reduce antioxidant defense. The resulting Cu+ catalyzes a Fenton-like reaction with endogenous H2O2 to generate •OH for CDT, while Ti3C2Tx acts as a catalase-like nanozyme, decomposing H2O2 into O2 to alleviate hypoxia, promote charge transfer, improve the utilization efficiency of photogenerated electrons, and enhance PDT efficacy. In vitro, the platform showed excellent biocompatibility and GSH-responsive activation, inducing 41.21% apoptosis in CAL-27 cells under 660 nm laser irradiation, significantly outperforming controls. In vivo, the nanocomposite accumulated efficiently in tumors via the EPR effect, suppressed tumor growth, and exhibited no observable systemic toxicity. This work provides a TME-responsive theranostic platform that integrates tumor-specific activation, GSH depletion, hypoxia alleviation, and enhanced ROS generation for precise and effective OSCC treatment.
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INORGANIC CHEMISTRY COMMUNICATIONS
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2026
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IF 5.9
Piaoyu Yan,Bao Jiang,Jing Zhou,Jiawen Liu,Wanxiu Xi,Ensheng Wang,Xiuhua Cui,Zhaohui Chen
Birefringent crystals exhibit significant advantages in the field of polarization modulation due to their intrinsic optical anisotropy. However, the synergistic optimization of bandgap and birefringence remains a pivotal scientific challenge, as both properties are critically dependent on the underlying crystal structure. Herein, a fluorination-guided strategy was employed to design a crystal featuring both large birefringence and deep-ultraviolet transparency. Consequently, a crystal, [CN 4 H 8 ]SiF 6 , was successfully synthesized by incorporating fluorinated [SiF 6 ] 2− octahedron and π-conjugated [CN 4 H 8 ] 2+ moiety, as well as the spatial orientation of [CN 4 H 8 ] 2+ moiety was regulated. As expected, the [CN 4 H 8 ]SiF 6 possesses a wide bandgap of 6.57 eV and a large birefringence of Δ n = 0.062 @ 546 nm. By combining experimental characterization and the first principles calculations, we elucidate that the highly polarizable [CN 4 H 8 ] 2+ cation and the dense hydrogen-bonding networks of [SiF 6 ] 2− anions jointly dictate the optical properties of the material. This work not only identifies [CN 4 H 8 ]SiF 6 as a superior candidate with an optimal trade-off between bandgap and birefringence, but provides a design paradigm for expanding the deep-ultraviolet material through coupling anisotropic organic template with fluoro-inorganic framework.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
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IF 19.7
Qiu-ran Lu,Ying-jie Sun,Ya-mei Xue,Xiao-jing Wang,Hui-ying Mu,Fa-tang Li
A dual-scale Ag-Bi/TiO 2 -Ov architecture couples photogenerated electrons with interfacial protons, resolving the kinetic disconnect in CO 2 methanation. • Adjacent Ag-Bi sites synergistically lower the barrier for *COOH formation while facilitating proton spillover from TiO 2 -Ov. • The optimized photocatalyst achieves a CH₄ evolution rate of 75.17μmol·g −1 ·h −1 with 97.2% selectivity under sacrificial-agent-free conditions. Solar-driven CO 2 -to-CH 4 conversion could help close the anthropogenic carbon loop, yet its practical realization is consistently undermined by poor selectivity and a kinetic disconnect between interfacial electron transfer and proton availability. Herein, we address these limitations by constructing a dual-scale architecture that deliberately couples proton spillover dynamics with CO 2 activation pathways. Highly dispersed Ag-Bi hetero-bimetallic nanoalloys are integrated onto oxygen-vacancy-enriched TiO 2 through a one-step reductive transformation of metal oxyacid precursors, establishing atomically intimate Ag-Bi dual active sites. Operando diffuse reflectance infrared Fourier transform spectroscopy coupled with density functional theory calculations reveals that this bimetallic interface not only lowers the *CO 2 →*COOH free-energy barrier and stabilizes *CO intermediates to suppress parasitic desorption, but also orchestrates directional proton spillover via localized electrostatic modulation. Electrons relayed from the oxygen-vacancy-rich TiO 2 converge spatially with protons generated in situ at surface oxygen vacancies, establishing a concerted proton-coupled electron transfer channel that governs the sequential hydrogenation of adsorbed *CO to CH 4 . Guided by this mechanistic rationale, the optimized photocatalyst (A 1 B 1 T30) achieves a CH 4 production rate of 75.17 μmol·g −1 ·h −1 with 97.2% selectivity. By resolving how electrons and protons converge at the interface, the work identifies a concrete materials lever for selective C 1 photoreduction. Download: Download high-res image (196KB) Download: Download full-size image
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COMPOSITES COMMUNICATIONS
·
2026
·
IF 8.6
Hailong Liu,Mingzhan Li,Yiqi Wu,Yuan Li,Li Yin,Yinchuan Pu,Gang Li,Yudong Huang
Electrostatic self-assembly of PPI and MXene creates a multifunctional interface on carbon fibers. • Interfacial shear strength increases by 43.9%, and flame retardancy reaches UL-94 V-0 rating. • The HRR is reduced by 53.4%, and COp by 76.9%. • The inherent trade-off between flame retardancy and mechanical properties in CFRPs is overcome. • This mild modification method not only preserves fiber tensile strength but also enhances surface energy and wettability. The practical application of carbon fiber-reinforced epoxy resin composites (CFRPs) is hindered by weak fiber-matrix interfacial adhesion and the inherent flammability of epoxy resins. In this study, a multifunctional integrated interface was innovatively constructed on the carbon fiber surface via electrostatic self-assembly of polyhedral oligomeric silsesquioxane based nanocomponents (PPI) and MXene nanosheets. This mild modification strategy preserves the intrinsic tensile strength of the fibers while significantly enhancing surface wettability and surface energy. The resulting PPI-MXene hybrid interface substantially improves interfacial adhesion, achieving a 43.9% increase in interfacial shear strength compared to unmodified CFRPs. The optimal composite, 5-MPCF/EP, exhibits outstanding mechanical performance, with interlaminar shear strength, flexural strength, and unnotched impact strength increased by 30.9%, 30.1%, and 50.6%, respectively. Moreover, the integrated interface endows the composites with exceptional flame retardancy, achieving a UL-94 V-0 rating and a limiting oxygen index of 35.4%. Cone calorimetry tests reveal significant reductions in peak heat release rate (53.4%), total heat release (33.2%), and carbon monoxide production (76.9%). The synergistic flame-retardant mechanism involves physical barrier formation, radical scavenging, catalytic carbonization, and thermal reflection. This work overcomes the longstanding trade-off between flame retardancy and mechanical properties in CFRPs, offering a promising strategy for developing high-performance, fire-safe composites. Download: Download high-res image (417KB) Download: Download full-size image
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WASTE MANAGEMENT
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2026
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IF 7.3
Tianhang Tang,Chenlu Yang,Huikang Song,Hao Liu,Hao Shi,Yaji Huang
A highly efficient and environmentally friendly plasma co-melting vitrification process was developed. • The mechanisms of heavy metal fixation and migration during the plasma melting process were investigated. • Changes in the valence states and forms of various elements during the melting process were studied. Hazardous fly ash (HFA) contains large amounts of toxic heavy metals and poses significant potential risks to the environment. In this study, HFA was co-melted with hazardous bottom ash (HBA) and waste glass (WG) in a plasma system to investigate its vitrification behavior, heavy metal migration, and solidification mechanisms. The results indicate high vitrification efficiency (99.5 %) and ash solidification rate (97.1 %). The original multi-phase crystalline structure transformed into a structure dominated by an amorphous silicate network following plasma melting and rapid cooling. The surface became smoother and denser, and heavy metals were distributed uniformly, indicating enhanced physical encapsulation capacity and a more homogeneous structure. Although a considerable amount of heavy metals remained in the melt product (GP), the leaching concentrations of all detected heavy metals were significantly reduced. BCR results further indicate improved long-term stability of heavy metals. Additionally, the solidification mechanism was elucidated, involving a synergistic process of glass network encapsulation, fixation in iron-rich crystalline phases, and volatilization-redistribution-residual stabilization. As, Pb, and Cu are primarily immobilized in the glass phase, while Cr and Ni are preferentially stabilized in iron-rich spinel/ferrite-like phases; Zn and Mn exhibit dual-host behavior between the glass and crystalline phases. The results demonstrate that plasma co-melting vitrification is an effective method for the detoxification, stabilization, and resource utilization of hazardous incineration residues.
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DIAMOND AND RELATED MATERIALS
·
2026
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IF 5.2
Liangyu Zhai,Atawulla Nurmemet,Abdulla Eziz,Anwar Mamat,Abulikemu Abulizi,Hongyuan Zeng,Ailijiang Nuerla,Min Liu
A carbon-rich precursor was extracted from coal gangue by gradient purification. • Molten salt-assisted activation regulated pore structure and surface chemistry. • The optimized porous carbon exhibited high surface area and defect density. • High-capacity cationic dye adsorption was achieved by CGC-124. • DFT revealed enhanced binding by oxygen-containing functional groups. Coal gangue is a massive coal-based solid waste containing intrinsic carbonaceous matter that remains underutilized for the preparation of high-value functional carbon materials. Herein, coal gangue was converted into hierarchically porous carbon through gradient purification and molten salt-assisted KOH activation. Flotation followed by sequential HF/HCl leaching effectively removed mineral impurities and enriched the carbonaceous fraction. During activation, the NaCl/KCl molten salt medium promoted more uniform KOH etching and moderated excessive corrosion of the carbon framework, facilitating hierarchical pore development while retaining oxygen-containing surface functionalities. The optimized porous carbon, CGC-124, exhibited a specific surface area of 2964.39 m 2 /g, abundant defects, and surface hydroxyl/carboxyl groups. Using methylene blue (MB) as a representative cationic dye, CGC-124 achieved an adsorption uptake of 2798.48 mg/g at 318 K. Kinetic analysis was consistent with a surface-controlled process with chemisorption-like characteristics, whereas the better Freundlich fitting reflected the heterogeneous nature of the carbon surface. Experimental characterization and DFT calculations indicated that pore filling, electrostatic attraction, hydrogen bonding, π–π interactions, and interactions involving oxygen-containing groups jointly contributed to MB adsorption. This work provides a route for converting coal gangue into high-surface-area porous carbon and offers insight into molten salt-assisted pore engineering for cationic dye adsorption. Download: Download high-res image (160KB) Download: Download full-size image
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APPLIED CATALYSIS B-ENVIRONMENTAL
·
2026
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IF 19.7
Boyang Zhang,Zhiyong Zhang,Yangfan Li,Yangqi Wei,Xingmiao Huang,Chuncheng Chen,Hua Sheng,Jincai Zhao
Post-synthetic strategy modularly integrates CO 2 -to-CO and CO-to-C 2+ sites. • Redox mediator and confinement synergize to regulate cascade reactions. • Confined TEMPOL acts as PCET mediator, lowering CO 2 -to-*COOH barrier. • Inactive MOF is transformed into an efficient CO 2 -to-C 2+ electrocatalyst. Efficient electrochemical conversion of CO 2 to multi-carbon (C 2+ ) products requires the integration of two sequential functionalities: CO 2 activation to *CO and subsequent CO-initiated C-C coupling. Conventional strategies typically rely on the rigid, pre-designed incorporation of these two functional units during catalyst synthesis. In contrast, we propose a post-synthetic modification strategy that introduces a molecular CO 2 activation unit into a pre-formed catalyst scaffold, thereby enabling its spatially proximal coupling with intrinsic CO reduction sites. This concept is demonstrated by encapsulating 4-hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPOL) into the pores of a tetrapyrazolylporphyrin copper-based metal–organic framework (FICN-8). Owing to the well-matched molecular dimensions, the confined TEMPOL and adjacent Cu nodes cooperatively define a cavity that spatially accommodates a CO 2 molecule. Reduced TEMPOL acts as a proton-coupled electron transfer (PCET) mediator, while spatial confinement regulates the local reaction environment, jointly lowering the free energy barrier for *COOH formation. The confined *COOH intermediate is subsequently converted to CO and further undergoes C–C coupling. As a result, FICN-8—originally inactive for CO 2 -to-C 2+ conversion (Faradaic Efficiency, FE< 0.6%)—is transformed into an efficient electrocatalyst, delivering a C 2+ Faradaic efficiency of 42.6% with a two-orders-of-magnitude enhancement in C 2 H 4 formation rate. Download: Download high-res image (123KB) Download: Download full-size image
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危险品化学品经营许可证（带存储）