ENVIRONMENTAL TECHNOLOGY
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2026
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IF 2
Hailin Cao,Haitao Liu,Wenchao Ma
Municipal solid waste incineration (MSWI) fly ash is a hazardous waste, and traditional landfill disposal lacks sustainability. Resource utilization offers a viable pathway for its future management. Heavy metals are key hazardous components in fly ash, and their stabilization is essential for resource utilization. However, traditional high-temperature treatments are energy-intensive and costly, limiting large-scale application. This study proposed an energy-efficient, medium-temperature treatment method for fly ash and evaluated its environmental risks. Molecular dynamics simulations were conducted to elucidate the underlying mechanisms of heavy metal stabilization. The study revealed that co-sintering fly ash with clay at 750°C and 950°C led to a significant reduction in heavy metal leachability, with Pb and Zn concentrations decreasing by 97.4% and 61.7%, respectively. The sintered products developed new fibrous mineral phases, predominantly wollastonite and rankinite, within which heavy metal ions were incorporated through isomorphic substitution for Ca2+ in the crystal lattice, leading to stable immobilization. Sequential extraction analysis showed that the chemical forms of heavy metals shifted from acid-soluble to more stable reducible and oxidizable fractions after treatment. Consequently, the environmental risk levels of Zn and Pb decreased from moderate to negligible, while that of Cd was reduced from high to negligible. Long-term leaching tests under simulated acid rain conditions confirmed that the sintered products maintain high stability during prolonged environmental exposure.
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高影响因子
Aggregate
·
2026
·Vol. 7
·期 2
·e70284
·
IF 14.5
Yifan Wu,Xuan Ma,Yanger Liu,Zhaoxuan Zhang,Yangzi Zhang,Wenqiang Zhang,Longjiao Zhu,Wentao Xu
Fluorescent RNA aptamers offer promising opportunities for next-generation biosensing but are often limited by low signal-to-background ratios and unstable folding kinetics. In this work, a label-free Förster resonance energy transfer (FRET)-enhanced fluorescent artificial RNA condensate (F-FARCON) is developed for small-molecule sensing, leveraging neutral molecular crowders (e.g., polyethylene glycol 8K), and RNA structural motifs to induce multivalent interactions and drive dynamic self-assembly. As a demonstration, a label-free FRET system is constructed by integrating a histamine-responsive RNA aptamer with thioflavin T (ThT) as the fluorescence donor, which increases the signal-to-noise ratio while reducing sequence complexity and production costs. Molecular crowders optimize the thermodynamic environment of RNA–ligand and RNA–RNA multivalent interactions, thereby improving folding stability, signal amplitude (dynamic range of up to ∼970-fold), and target affinity. The platform exhibits fast kinetics (<15 min), an adjustable detection range (0.1–200 and 5–1000 µM), and high sensitivity (limit of detection, 15.36 nM), with robust performance in complex biological matrices. The platform is further integrated into a freeze-dried paper-based portable device that enables dual-channel fluorescence readout for on-site rapid detection without sophisticated instrumentation. To further validate the modularity of F-FARCON beyond histamine, we reprogrammed the recognition module to target S-adenosyl-L-methionine (SAM), achieving nanomolar limits of detection. By linking crowding-guided assembly to hierarchical photophysical enhancement and analytical performance, the work delineates a generalizable aggregate-science route to versatile, low-cost, and field-deployable fluorescence sensing across food safety, environmental monitoring, and biomedical diagnostics.
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Laser & Photonics Reviews
·
2026
·
IF 10
Mingkai Wei,Yanjun Hao,Xuejie Zhang,Wei Li,Haoran Zhang,Bingfu Lei
Near-infrared (NIR) phosphor-converted LEDs (pc-LEDs) are critical for smart agriculture and night vision, but their efficiency is limited by low external quantum efficiency (EQE) of phosphors. Herein, the introduction of Al 3+ ions via chemical substitution increased the EQE of the GdGa 2.85 (BO 3 ) 4 :0.15Cr 3+ NIR phosphor from 8.3% to 30.7% (a relative increase of 270%). Importantly, an “absorption-efficiency decoupling” paradigm is identified: while the Al 3+ substitution reduces the absorbance, confirmed by Density Functional Theory, diffuse reflectance spectra, and X-ray photoelectron spectroscopy, the quantum efficiency is significantly increased. Theoretical analyses and spectroscopic evidence suggest that the superior EQE gain stems from Al 3+ -induced crystal field enhancement and subsequent energy level remodeling. This remodeling optimizes the Cr 3+ excited state dynamics by suppressing the non-radiative transitions pathway and increasing the radiative transitions, thus overcoming the detrimental effects of absorption reduction. The optimized phosphor, combined with a blue LED chip, produced an NIR pc-LED achieving 41.7 mW output power and 15.7% photoelectric efficiency at 100 mA. The device successfully demonstrated potential for precision agriculture and night vision. This work provides novel insight into “absorption-efficiency decoupling” and offers a new design strategy for efficient Cr 3+ -doped NIR phosphors.
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Small
·
2026
·
IF 11.8
Wenkang Xu,Zhiyang Yu,Hongxiao Yang,Xiaoyan An,Chao Peng,Guangxing Yang,Hao-Fan Wang,Yonghai Cao,Hongjuan Wang,Hao Yu
Functioning as nanoscale “conductors”, 2D transition metal carbides (MXenes) orchestrate interfacial charge-carrier transport between semiconductors. This capability enables precision-engineered control over photocatalytic processes by regulating charge-carrier separation and migration dynamics. However, existing techniques inadequately resolve photogenerated carrier dynamics, hindering rational MXene photocatalyst design. This study addresses this limitation using in situ nanoscale imaging with Kelvin probe force microscopy (KPFM) on a model TiO 2 @MXenes system. We demonstrate that the charge transfer direction is governed by work function ( W F ) difference, allowing for utilizing MXenes as electron- or hole-accepter by tuning the work function of MXenes. Glycerol treatment increases surface ─OH density, lowering MXene W F to 1.31 eV and strengthening hole-extracting electric fields. By doing so, Pt/TiO 2 modified with low- W F MXenes, showing 70.7%–91.7% reduction in charge transfer resistance, displayed the electron-hole transport, which vastly outperforms the electron-electron transport mode. This work offers a quantitative design paradigm linking surface terminations to W F to carrier transport pathways for developing efficient MXene-based heterojunction photocatalysts.
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Laser & Photonics Reviews
·
2026
·
IF 10
Chenyang Zhan,Zihao Wang,Sisi Liang,Haomiao Zhu
Developing narrow-band green phosphors via selective site occupancy engineering remains challenging for wide-color-gamut displays. While Eu 2+ -doped UCr 4 C 4 -type nitride and oxynitride lithoaluminates exhibit narrow-band emission and high thermal stability, their emission spectra are confined to red–orange region due to the pronounced nephelauxetic effect of N 3− ions. To address this limitation, we design a nitrogen-free oxolithoaluminate phosphor, Sr 5/6 Li 17/6- x Al 7/6- x Zn 2 x O 4 :Eu 2+ (SLAZO:Eu 2+ ), synthesized via a stepwise solid-state reaction with Zn 2+ doping ensuring phase stabilization. Crucially, elevating the sintering temperature from 780°C to 870°C confined Eu 2+ occupancy from dispersed Sr1–Sr5 sites (distorted [SrO 8 ] cubes) to larger Sr2a/b and Sr3a/b sites, thereby transforming emission from dual-band yellow–green to a singular narrow-band green peak at 528 nm. The optimized phosphor exhibits a narrow full-width-at-half-maximum (FWHM) of 51 nm (1784 cm −1 ) under 400 nm excitation. It has an internal/external quantum yield of 41.6%/20.1% and maintains 54.2% of its emission intensity at 150°C relative to 25°C. A white LED device fabricated with SLAZO:Eu 2 + , K 2 TiF 6 :Mn 4 + , and a 450 nm blue chip achieves a color gamut covering 97.4% of the National Television System Committee standard. This study demonstrates thermally-driven site-selective occupation as an effective strategy for emission tuning and validates SLAZO:Eu 2+ as a promising narrow-band green emitter for next-generation displays.
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Laser & Photonics Reviews
·
2026
·
IF 9.7
Dawei Wen,Haoyuan Weng,Bin Xiao,Pan Wang,Ruijing Fu,Zhiwei Ma,Qingguang Zeng,Guanjun Xiao
Luminescence pressure sensors, valued for their remote sensing capability and high resolution, have been developed recently. However, most current sensors rely on a linear relationship between an optical property and pressure. We propose a nonlinear machine learning (ML) method to model the luminescence intensity ratio (LIR) as a function of pressure. The versatility and performance of this method are demonstrated using (Y,Gd)(Al,Ga) 3 (BO 3 ) 4 :Cr 3+ phosphors as luminescent pressure sensors. The relative sensitivities of the 2 E → 4 A 2 / 4 T 2 → 4 A 2 LIRs in (Y,Gd)(Al,Ga) 3 (BO 3 ) 4 :Cr 3+ range from 1.58%/GPa to 25.27%/GPa. The ML fitting demonstrates a superior performance compared to linear fitting, with lower mean absolute errors (0.0355–0.1499 GPa vs. 0.1209–0.6955 GPa) and higher R 2 values (99.70–99.98% vs. 93.69–99.79%). The ML fitting method is more suitable for modeling the nonlinear relationships between LIR and pressure than traditional linear fitting. The nonlinear ML fitting approach offers a powerful new way to model the relationships between luminescence features and various physical parameters.
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Laser & Photonics Reviews
·
2026
·
IF 10
Jiaxue Ren,Zexuan Chen,Zhuo Li,Song Shen,Henggang Wang,Yongqing Zhai,Zhengxu Cai,Zhenguang Wang
Achieving high-temperature-resistant afterglow is highly desirable yet challenging, primarily due to exciton deactivation at elevated temperatures. In this work, a co-pyrolysis strategy was proposed to achieve such afterglow by modulating the emission dynamics of organic molecules through introducing of structural defects. These defects facilitate exciton transfer to guest molecules, extending and balancing the lifetimes of both thermally activated delayed fluorescence and phosphorescence processes. The structural defects also promote thermoluminescence, wherein elevated temperatures trigger the release of trapped electrons to the guest molecules, thereby contributing significantly to the exceptional high-temperature afterglow stability. Additionally, the pyrolysis process generates ammelide, which protects excitons from deactivation. These synergistic effects yield afterglow materials exhibiting a photoluminescence quantum yield of 59.9% and an emission lifetime of 3.5 s. Remarkably, intense afterglow emission persists from 25 to 150°C with negligible changes in emission color, intensity, and decay kinetics. These findings provide valuable insights for modulating the emission dynamics of afterglow materials, suggesting promising applications in information security, biomedical diagnosis, and chemical sensing.
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Small
·
2026
·
IF 12.1
Jialu Fang,Xinyi Mei,Jun Sun,Ping Hu,Yu Long,Wei Zheng,Haiming Duan,Zhaofeng Wu
This study develops a high-performance room-temperature (RT) hydrazine (N 2 H 4 ) gas sensing material based on sustainable algal biomass. A porous carbon material (US-1.5) was fabricated from Undaria pinnatifida and sodium alginate via ice-templating and freeze-drying, yielding a hierarchical meso/macroporous structure that facilitates gas diffusion. Natural heteroatoms enable in situ self-doping, modulating electronic structure and surface reactivity. First-principles calculations confirm S-doping enhances adsorption energy and promotes charge transfer, creating more active sites for gas-surface interactions. The resulting US-1.5 sensing material demonstrates a high response of 22.53k% to 500 ppm N 2 H 4 , rapid response/recovery times (21.3 s/2.5 s), a low detection limit of 0.138 ppm, excellent selectivity, and cycling stability. It also shows humidity-dependent dual-mode sensing. This work pioneers algal aerogel-derived sensing materials, demonstrating marine waste upcycling for green, cost-effective gas sensing in environmental and industrial safety applications.
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高影响因子
Exploration
·
2026
·
IF 30.4
Ruijia Wang,Hongda Guo,Tao Zhang,Xiaoxia Chen,Min Ge,Shujun Li,Jian Li,Bing Tian,Bernd Strehmel,Shouxin Liu,Andrey L. Rogach,Tony D. James,Zhijun Chen
Fixation of CO 2 through photocatalytic cycloaddition with epoxides to synthesize cyclic carbonates is an important but challenging process. In this work, carbon dots (CDs) synthesized from gallic acid and polyethylenimine are used for the efficient catalytic cycloaddition of CO 2 with epoxides in the absence of any solvent, additives, and halides, and importantly upon irradiation by natural sunlight. Specifically, carbon dots generated thermal energy and electrons upon solar irradiation, which together with their surface N-sites activated the inert CO 2 . Meanwhile, epoxides were activated by the surface hydroxyl and carboxylic groups of the carbon dots, which reacted with activated CO 2 at solar thermal-induced high temperatures. The CDs shows excellent stability and recyclability during the catalysis. A 1000 mmol scale reaction for cyclic carbonate synthesis performed well upon irradiation with natural sunlight in the presence of CDs, showing great potential for the industrial application due to the simple, mild, and energy-saving process.
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Energy & Environmental Materials
·
2026
·
IF 13.8
Guoli Zhang,Huihui Li,Kaiyue Wang,Gang Li,Kaixi Li,Taotao Guan,Kaiying Wang
Zinc-ion hybrid capacitor (ZIHC) with high-energy density and inherent safety is considered an emerging energy storage technology. However, its rate performance and cycling stability under high-current density conditions are limited by the electrical conductivity and mesoporosity of electrode materials, failing to meet the demand for fast charging. Herein, a novel strategy is proposed to prepare highly mesoporous carbons (MCs) by using high-graphitized carbon quantum dots (CQDs) as precursors. The enhanced dispersion of CQDs in molten KOH during activation occurs, thereby enabling more intimate contact and effective activation. MCs are endowed with ultrahigh mesopore ratio (83.3%), high-specific surface area (3328 m 2 g −1 ), and sound electrical conductivity (11.39 S cm −1 ). The ZIHCs assembled with MCs deliver superior energy density (218.24 Wh k g −1 ). Even at a high-current density of 20 A g −1 , the electrode maintains a specific capacity of 116.4 mAh·g −1 . The excellent rate capability stems from the efficient synergistic effect formed by the conjugated π-electron system of graphitic microdomains in the carbon skeleton and the ion transport channels of mesoporous structures. The work highlights CQDs as an innovative precursor for constructing mesoporous carbons and enables high-rate energy storage devices.
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Laser & Photonics Reviews
·
2026
·
IF 9.7
Yiming Zhao,Artem V. Kuklin,Jiahui Hou,Mingqi He,Lyudmila V. Begunovich,Han Zhang,Ying Li,Hans Ågren,Lingfeng Gao
Along with the increased attention of core–shell heterojunction quantum dots (QDs), there have been recent strong efforts to improve their practical applications by developing the synthetic approaches. In this work, uniform Te@Se core–shell QDs have been successfully fabricated via combining liquid-phase exfoliation and epitaxial growth methods, where the similar lattice structures of the materials from the same main group can effectively solve the lattice mismatch issue. Theoretical calculations reveal that the Te@Se material is a Type-I heterojunction with favorable initial electron transfer from core Te to shell Se upon formation. The photo-response performance of Te@Se QDs is systematically investigated by producing photoelectrochemical type photodetectors in low concentration electrolytes (0.1–10 mM), for which optimized photocurrent density (32.63 µA/cm 2 ) and photoresponsivity (1564 µA/W) could be achieved. The device also exhibits fast response and excellent stability, which could overcome instability issues in high-concentration electrolytes and expand the practical applications.
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Advanced Science
·
2026
·
IF 14.1
Shirong Peng,Weilong Lin,Zean Li,Ruilin Zhuang,Shengmeng Peng,Bingheng Li,Bingliang Chen,Yong Luo,Yuan Ou,Wei Zhuang,Tao Du,Kaiwen Li,Hai Huang
Cholesterol metabolism influences prostate cancer (PCa) progression, especially by affecting the tumor microenvironment. The present study demonstrated that cancer cell-intrinsic cholesterol promoted the S-palmitoylation of specificity protein 1 (SP1), enhancing SP1 nuclear translocation and driving the transcription and secretion of midkine (MDK), which in turn facilitated the differentiation of macrophages into a lipid-associated phenotype. Furthermore, targeting cholesterol metabolism with simvastatin significantly reduced MDK levels, inhibited immunosuppressive macrophage polarization, and enhanced the efficacy of enzalutamide in vivo. These findings suggested that targeting the cancer cell-intrinsic cholesterol-induced immunosuppressive tumor microenvironment could be an effective strategy to improve therapeutic outcomes in prostate cancer patients.
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