ENERGY & FUELS
·
2026
·Vol. 40
·期 31
·16999-17010
·
IF 6
Qi Youwei,Li Xuanyi,Zhao Mingxing,Mao Yuxiang,Cheng Jun
To address the challenges of low utilization of active
sites and
poor thermal stability of catalysts in the conversion of microalgal
biodiesel into biojet fuel under CO 2 atmosphere, a nickel-rich
carbon sheet catalyst was synthesized through partial pyrolysis of
a nickel-based aminoterephthalic acid framework (Ni-NH 2 –BDC) to enhance conversion rate and product selectivity.
Because the specific surface area of Ni-NC-500 derived from pyrolyzed
Ni-NH 2 –BDC at 500 ° C increased from 20.866
to 304.337 m 2 /g, more generated Ni 0 active sites
(33.69%) strengthened the deoxidation of methyl palmitate (a typical
composition of microalgal biodiesel). Compared with Ni-NH 2 –BDC, the total acid of Ni-NC-500 has significantly increased,
reaching 58.485 mmol/g, which will promote C–C bond breaking.
The large amounts of pyridine nitrogen (N-6, 39.98%) and pyrrole nitrogen
(N-5, 60.13%) present in Ni-NC-500 can significantly enhance the catalytic
performance. Therefore, the conversion rate of methyl palmitate and
the selectivity for jet-fuel range (C8–C16) products increased
to 96.28 and 84.69%, respectively.
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iScience
·
2026
·Vol. 29
·期 8
·
IF 4.5
Bangyu Liu,Lian Weng,Gaocheng Zhan,Jiawei Cong,Gongwei Hu,Yiman Liu,Min Liu
Antibiotic contamination in aquatic environments threatens ecosystem health and water security; yet, efficient, recyclable, and environmentally benign removal remains challenging. Here, a magnetically actuated miniature bamboo-fiber robot (MBFR), functionalized with a porous chitin foam, is demonstrated for antibiotic removal from complex water matrices. Bamboo and chitin afford biodegradability and facile fabrication, while Fe 3 O 4 nanoparticles enable fuel-free magnetic actuation, directional propulsion, and magnetic retrieval. The chitin foam provides abundant binding sites for broad-spectrum antibiotic capture through cooperative noncovalent interactions. Magnetic actuation accelerates interfacial mass transfer, with maximum adsorption capacities of 435.60 mg/g for norfloxacin (NOR) and 391.69 mg/g for oxytetracycline (OTC). After 20 adsorption-desorption cycles in natural-water matrices, MBFRs retained over 90% NOR removal and remained effective under representative matrix interferences. This work may open up prospects for functional biomass-derived robots in the active and recyclable remediation of antibiotic-contaminated waters.
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iScience
·
2026
·Vol. 29
·期 7
·
IF 4.5
Lili Dong,Bing Han,Minglan Jin,Yuxin Zhao
The preparation of emerging adsorbents promoted the sustained development of solid-phase extraction (SPE). Herein, magnetic porous reduced graphene oxide (MPrGO) was prepared to be applied to dispersive magnetic solid phase extraction (d-MSPE) of triclosan (TCS) from environmental water samples. TCS exists widely in water and has an endocrine disrupting effect on aquatic animals. We report an optimized workflow before gas chromatography (GC) for d-MSPE with 5 mg of MPrGO, 20 s extraction time, 4.5 mL (1.5 mL each time for three times) of methanol-5% (v/v) ammonia as elution. Recoveries of 110.3%–122.0% and 94.6%–96.2% were obtained for TCS spiked in surface water and tap water by the d-MSPE method with the relative standard deviations (RSDs) of less than 5.0%, respectively. The method was successfully applied to quantify the occurrence of TCS in reclaimed water samples. The d-MSPE analytical method is an efficient, simple, low-cost, recyclable method for monitoring traces of TCS in different water samples.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Xianchun Jin,Huali Yu,Qixiang Tang,Liang Shao,Wenxing Xu,Lili Xing,Xinyu Xue
Development of a droplet-driven self-powered electronic skin for robotic hand disinfection. • Integration of energy harvesting, antibacterial activity, and tactile sensing within a flexible platform. • Synergistic ROS generation and localized electric-field enhancement enable rapid bacterial inactivation. • Achieves >99.999% inactivation of E. coli and S. aureus without external power input. • Provides a multifunctional strategy for biosafe robotics and intelligent human–machine interfaces. Surface contamination on robotic hands and electronic skin poses a growing biosafety concern in medical care, laboratory operation, food processing, and human-machine interaction. Conventional disinfection strategies, such as chemical disinfectants, ultraviolet irradiation, and antibacterial coatings, often require external energy input, cause chemical residues, or show limited compatibility with flexible robotic surfaces. Therefore, developing a self-powered, on-demand, and in situ disinfection strategy for robotic electronic skin is highly desirable. Here, a droplet-driven self-powered antibacterial electronic skin based on an Al-FEP-PPyNW-PM (an Al needle electrode-integrated superhydrophobic FEP-PPy nanowire-PDMS@MXene multilayer film) is proposed. Water droplets naturally impact the multilayer film, converting droplet kinetic energy into electricity and triggering antibacterial reactions on robotic hands. The superhydrophobic FEP layer promotes rapid droplet contact–separation and enhances interfacial charge generation. The Al needle electrode supports charge collection and electron transfer. The PDMS@MXene substrate provides a flexible conductive network and piezoresistive sensing capability. The PPy nanowire tips amplify the localized electric field near bacteria. Droplet-induced electron transfer activates dissolved oxygen and produces reactive antibacterial species, including hydrogen peroxide, hydroxyl radicals, and superoxide radicals. These species synergize with localized electric-field-induced membrane disruption to achieve rapid bacterial inactivation. The system exhibits stable electrical output under repeated droplet impact and shows efficient antibacterial performance against both Gram-negative and Gram-positive bacteria. Meanwhile, the PDMS@MXene@PPy composite demonstrates reliable piezoresistive sensing, enabling the film to function as an integrated electronic skin. Overall, this work integrates droplet energy harvesting, ROS-mediated disinfection, localized electric-field enhancement, and pressure sensing into a multifunctional robotic interface, offering a promising strategy for self-disinfecting robotic hands without external power or chemical disinfectants. Download: Download high-res image (163KB) Download: Download full-size image
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Heng Dai,Qi Yu,Zhanyu Cao,Jiaxin Wang,Wenbo Sun,Jiayu Wang
Developing lightweight microwave-absorbing materials with a low filler loading, strong attenuation capability, and broad effective absorption bandwidth is an important requirement in electromagnetic protection and radar stealth. In this work, a nitrogen-doped reduced graphene oxide/Ce-doped strontium ferrite@nitrogen-doped carbon (NRGO/Ce-SrM@NC) heterointerfacial absorbing structure was constructed by hydrothermal assembly and dopamine-derived carbonization. In this system, Ce-SrM provides the magnetic response, NRGO builds a lightweight conductive network, and the NC shell acts as an interfacial bridging layer to regulate the coupling between magnetic particles and graphene sheets. Structural characterization shows abundant defect sites and close particle-sheet contact interfaces. At a filler loading of only 5 wt%, the NRGO/Ce-SrM@NC composite achieves a minimum reflection loss (RL min ) of −53.2 dB at a matching thickness of 2.6 mm and a maximum effective absorption bandwidth (EAB) of 7.22 GHz. Its excellent electromagnetic wave absorption (EWA) performance mainly originates from the synergistic effect of balanced impedance matching, conductive loss, dipole polarization, interfacial polarization, magnetic resonance, and multiple scattering. Further CST simulations show that a PEC plate coated with the NRGO/Ce-SrM@NC composite can achieve a radar cross section reduction of 41.35 dB cm⁻¹ . Meanwhile, the simulated moth-eye-inspired gradient structure based on the NRGO/Ce-SrM@NC composite extends the EAB to cover the entire 2–18 GHz range. This study provides a feasible strategy for the design of low-filler, broadband electromagnetic wave-absorbing materials and radar stealth structures.
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MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Mengyao Ma,Mengmeng Hu,Yifan Zhu,Renjie Wang,Tongliang Wang,Jinnan Gan,Runjing Cai,Nana Dai,Ting Gao,Qiaohuan Cheng,Qianqian Chen,Huijuan Ran,Fei Peng,Qingsong Zhu
In-situ growth of Ti-MOF@rGO improves dispersion, reduces agglomeration, and facilitates electron transport. • 0.3–400 μM linear range, 0.114 μM LOD (S/N=3), selective vs UA/AA, stable/reproducible. • Synergistic Ti-MOF@rGO boosts DA adsorption and electron transfer via 2e - /2H + redox. Electrochemical detection of dopamine (DA) is critically important for the diagnosis and monitoring of neurological disorders. In this study, we present a novel composite material, Ti-MOF@rGO, synthesized in-situ through the integration of titanium-based metal-organic frameworks (Ti-MOFs) with reduced graphene oxide (rGO). This hybrid material effectively combines the abundant redox-active sites of Ti-MOF with the excellent electrical conductivity and large specific surface area of rGO, thereby facilitating efficient charge transfer and enhanced DA adsorption. The Ti-MOF@10%rGO-modified glassy carbon electrode demonstrated outstanding electrocatalytic performance for DA oxidation, exhibiting a wide linear detection range of 0.3–400 μM and a low detection limit of 0.114 μM (S/N = 3). The sensor exhibited high selectivity against common interferents such as uric acid and ascorbic acid, along with excellent repeatability, reproducibility, and cycling stability. This work presents a promising strategy for the rational design of MOF-based composites and offers a robust platform for ultrasensitive and selective electrochemical biosensing applications.
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ChemistrySelect
·
2026
·Vol. 11
·期 29
·e73937
·
IF 2.3
Yingjian Liao,Wenqi Xu,Liang Zeng,Songyun Deng,Xiaomao Hu,Song Lei,Linping Chen,Li li Geng,Shu Chen
Hexavalent chromium (Cr(VI)) is a highly toxic heavy metal contaminant commonly used in industrial applications, posing significant risks to human health and environmental sustainability due to its persistence and difficulty in degradation. Transition metal carbide (MXene) is an emerging two-dimensional material that has gained considerable attention for its potential in water pollutant removal. However, poor MXene stability and limited functional groups restrict its specific adsorption of target metal ions such as Cr(VI). Herein, a novel functionalized three-dimensional MXene composite gel (M/D/P) was synthesized via a photo-induced thiol-ene click reaction using MXene as the framework material. The multithiol-functionalized framework introduces abundant thiol groups, which facilitate the reduction of Cr(VI) to less toxic Cr(III) and enable chelation of Cr(III) with the adsorbent, driven by proton depletion during reduction. The adsorption behavior follows pseudo-second-order kinetics and the Langmuir model, indicating a chemical adsorption process. The maximum removal capacity reaches 347.71 mg·g − 1 , and the gel maintains 80% of its initial adsorption capacity after five cycles. The synergistic adsorption-reduction mechanism, involving electrostatic attraction, reduction, covalent bonding, and chelation, highlights M/D/P as a promising MXene-based adsorbent for water treatment applications. Graphical A multithiol-functionalized MXene composite gel (M/D/P) is synthesized via photo-induced thiol-ene click reaction. The abundant thiol groups enable synergistic adsorption–reduction of Cr(VI) through electrostatic attraction, chemical reduction, and chelation. The material achieves 374.71 mg·g − 1 removal capacity with excellent reusability.
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ELECTROCHIMICA ACTA
·
2026
·
IF 5.8
Yu-Han Yuan,Jia Liang,He-Jie Wu,Gui-Fang Li,Shuang-Lin Cai,Jin-Wei Yan,Hai Huang,Ye Zeng,Ming-ming Tao,Xiao-hong Fan,Yi Li,Ding-Rong Deng,Qi-Hui Wu
F-CN@RGO presents multi-dimensional synergy between the conductive framework and heteroatom doping. • F-doping induces lattice distortion, optimizes the electronic structure, enhances redox kinetics. • It exhibits outstanding long-cycle stability, with a capacitance retention of 86.8% after 30,000 cycles. • The asymmetric supercapacitor achieves a high energy density of 87.75 Wh·kg −1 and excellent cycling stability. Supercapacitors possess exceptional capacity to transfer energy quickly, but increasing cycle stability and energy density is still a major problem that hinders their commercial applications. This study uses a one-step hydrothermal method to build and construct a fluorine F-doped three-dimensional (3D) Co 2 NiO 4 @reduced graphene oxide (RGO) heterostructure (referred as F-CN@RGO) on the nickel foam (NF) electrical collector. RGO-wrapped NF functions as 3D conductive framework that suppresses the volume strain during long-term cycling while simultaneously improving the electron transfer efficiency, electrical conductivity, and specific surface area. F-doping regulates the electronic structure, surface properties, and chemical stability of Co 2 NiO 4 @RGO. The high electronegativity of F ions accelerates the electron transfer, induces the lattice distortion of Co 2 NiO 4 @RGO, and consequently modulates its electronic structure and interfacial reaction kinetics. Electrochemical tests show that the activated F-CN@RGO (A-F-CN@RGO) has a high specific capacitance of 8.76 F·cm −2 (5 mA·cm −2 ). After 30,000 cycles, the asymmetric supercapacitor with A-F-CN@RGO and activated carbon as the electrodes retains 88.2% of its initial capacitance. By generating multi-dimensional synergistic effects with rational design structure between the substrate and active materials as well as heteroatoms and host materials, this work offers a universal technique for the controlled production of high-performance electrodes for supercapacitors. Download: Download high-res image (403KB) Download: Download full-size image
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PHYSICS AND CHEMISTRY OF THE EARTH
·
2026
·
IF 4.6
Zuhur J.Q. Ali,Tawfik A. Saleh,Abbas A. Abdullahi
Polyamide/graphene oxide nanocomposite membrane developed for wastewater treatment.Newly synthesized and modified with graphene oxide. • Achieved >90% rejection of heavy metals and ∼99% removal of hydrocarbons. • Promising membrane for sustainable purification of complex wastewater streams. The contamination of wastewater with heavy metals poses significant environmental and health risks, necessitating the development of effective filtration technologies. While existing membrane filtration methods have shown promise, there remains a gap in the efficient removal of pollutants, particularly in complex wastewater mixtures. In this study, a novel polyamide-functionalized graphene oxide (GO) nanocomposite membrane was developed to address this challenge. The membrane was synthesized by integrating GO nanoparticles onto a substrate, followed by surface functionalization. The filtration performance was comprehensively evaluated through various techniques, including Fourier-transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), atomic force microscopy (AFM), field emission scanning electron microscopy (FE-SEM), and X-ray diffraction (XRD). The results demonstrated exceptional removal efficiencies for heavy metals, with rejection rates exceeding 90% for cadmium, barium, and chromium ions. The study also explored the membrane's performance for separating salts, such as carbonate and sulfate ions, and organic pollutants showing a good performance for the rejection of multipollutants. These findings demonstrate the potential of the developed membrane for efficient heavy metal removal in complex wastewater systems. A visual representation of various contaminants found in industrial wastewater and their removal using the reported membrane. Download: Download high-res image (319KB) Download: Download full-size image
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Advanced Optical Materials
·
2026
·
IF 7.2
Xuan Li,Guowei Du,Huihui Cao,Yimin Zhou,Chenyang Li,Zicheng Wen,Zhihui Han,Fei Tang
All-inorganic phosphor composites have emerged as vital solutions for high-power solid-state lighting, circumventing the intrinsic thermo-chemical vulnerabilities and spectral instabilities of conventional polymer-encapsulated matrices. Here, we report self-supporting, ultrathin phosphor-glass composites (PGC) utilizing commercial Ca-α-sialon:Eu 2+ amber phosphors as the luminescent component. Leveraging tape-casting and low-temperature sintering, we achieve microscale control over composite thickness (117 µm) and phosphor distribution, while maintaining crystalline integrity and delivering a high internal quantum yield of 95.59%. Systematic tuning of phosphor loading reveals that photon transport—governed by multiple scattering and self-absorption—is the dominant limiter of apparent emission in the ultrathin regime, with an optimal loading identified at 20 wt.%. Furthermore, we engineer a dual-layer laminated architecture that spatially decouples light conversion from mechanical reinforcement and thermal buffering. This configuration effectively suppresses chromatic drift and improves luminous stability and efficiency retention under high-power excitation. Notably, the laminated PGC exhibit superior tensile strength, moisture resistance, and thermal dissipation without compromising luminescence performance. These results establish architecture-enabled ultrathin PGC as a promising photonic packaging platform for next-generation color-stable, high-power solid-state lighting.
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ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Xiangyi Zhang,Zihan Xing,Tong Wang,Limin Wu
Passive radiative cooling provides a sustainable, zero-energy cooling pathway, yet it faces a fundamental challenge in humid or cloudy conditions due to the blockage of the atmospheric transparency window and increased downward atmospheric radiation. Herein, we present a hierarchical Janus bilayer metafabric (TS/PLU) that synergistically combines radiative and evaporative cooling for thermal management with humidity resilience. Integrating a hydrophobic TPU/h-SiO 2 reflection layer with a hygroscopic PAN/LiCl@UiO-66 regulation layer achieves superior solar reflectance (>96%), high atmospheric-window emissivity (96.6%), and moisture capture and evaporation. Crucially, a “harvest-storage-release” mechanism is enabled by UiO-66-confined LiCl, mitigating deliquescence and salt leakage while facilitating heat dissipation even when radiative power is attenuated by high humidity. Asymmetric wettability ensures unidirectional water transport, preserving the radiative function of the hydrophobic top layer. Outdoor tests demonstrate a maximum sub-ambient temperature reduction of 13.4°C under sunny conditions, with a net radiative cooling power of 132.87 W m −2 . The LiCl@UiO-66 incorporation contributes an additional 5.1°C cooling enhancement relative to non-hygroscopic controls. Combined with mechanical robustness (≈370% elongation) and washing durability, this multimodal strategy offers a material-level proof of concept for thermal management featuring humidity resilience and shows potential relevance to personal cooling, outdoor thermal protection, and building-envelope cooling.
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Science Advances
·
2026
·Vol. 12
·期 31
·
IF 13.9
Yi Sun,Wen-Li Lv,Qi-Bing Xiao,Gang Wu,Xian-Wei Liu
Molecular twist-related rotational dynamics at solid-liquid interfaces governs recognition, dissipation, and barrier crossing, yet direct label-free visualization of single-molecule torsion remains challenging. Here, we present twist-encoded magnetic plasmon interferometry (TEMPi), which converts nanorod twist near a metal film into a phase-encoded, orientation-resolved optical signal. Near-field coupling between a gold nanorod and its mirror image in the film excites a localized magnetic plasmon, enabling quantitative mapping of probe twist to interferometric phase. Wide-field, label-free operation in native buffers enables real-time tracking of rotational dynamics and interfacial conformational changes. TEMPi resolves three confinement-dependent rotational regimes, distinguishes effective dual- and single-contact protein anchoring, and localizes single binding sites on the probe through twist-dependent centroid shifts. Applied to DNA hybridization, it quantifies an effective ninefold increase in torsional stiffness and an order-of-magnitude faster twisting relaxation upon duplex formation. These results establish TEMPi as a general twist-resolved metrology for probing effective interfacial molecular mechanics and designing torsion-responsive interfaces in chemistry, biology, and nanotechnology.
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