WATER AIR AND SOIL POLLUTION
·
2026
·Vol. 237
·期 13
·750
·
IF 3.5
Meng Chunhui,Li Yuena,He Qitong,Hao Yue,Yin Wenjun,Zhou Huang,Li Ping
Titanium dioxide (TiO 2 )-mediated photodynamic therapy has emerged as a promising antibacterial strategy. To further enhance the photocatalytic activity of TiO 2 , we have rationally designed cobalt-doped TiO 2 nanocomposites (C/Co/TiO 2-x ) via a sol–gel synthesis approach. The synthesized materials were systematically characterized using transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and UV–Vis diffuse reflectance spectroscopy (UV–Vis DRS). Structural analyses confirmed the presence of Ti, O, C, and Co elements, exhibiting a block-like morphology with a dominant anatase crystalline phase. Notably, the optimized material exhibits an extended visible-light absorption edge (762 nm) accompanied by a reduced band gap (1.63 eV), demonstrating significantly enhanced visible-light harvesting efficiency. Antibacterial evaluations revealed that the C/Co/TiO 2-x nanocomposite (5 mg/mL) achieved complete inactivation of Staphylococcus aureus ( S. aureus ) and Escherichia coli ( E. coli ) within 60 and 100 min, respectively, under visible-light irradiation (7 W LED). Radical trapping experiments identified photogenerated holes (h + ) and hydroxyl radicals (·OH) as the predominant reactive species responsible for bacterial inactivation. In vitro cytotoxicity assessment demonstrated excellent biocompatibility of the material. This study successfully illustrates the synthesis of C/Co/TiO 2-x nanocomposites, which exhibit promising potential for antibacterial applications.
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ADVANCED MATERIALS
·
2026
·
IF 29.1
Lanxin Qin,Yiqi Luo,Zhe Sun,Atieh Feda,Esmaeil Sheibani,Siwei He,Xiang Zhang,Fang Wang,Bo Xu,Jiang Tang,Jiajun Luo
Vapor-deposited light-emitting diodes (LEDs) based on non-toxic copper-iodide nanoclusters (Cu NCs) hold immense potential for scalable solid-state lighting and displays. However, interface defects-induced device performance degradation remains a critical challenge for organic–inorganic nanoclusters. Here, we present an interfacial coordinate-bond passivation strategy employing a pyridine-functionalized self-assembled monolayer (SAM) material featuring tailored pyridine anchoring groups. The designed pyridine-functionalized SAM materials simultaneously passivate the Cu NCs emissive layer (EML) and optimize charge injections. Consequently, we demonstrate Cu NCs-based LEDs achieving a peak external quantum efficiency (EQE) of 22.5%, a maximum luminance of 41 432 cd∙m −2 , and an improved operating half-lifetime of 119 h at 1000 cd∙m −2 , which is among the best of reported vapor-deposited clusters-based LEDs. Moreover, we demonstrate active-matrix displays by integrating Cu NCs-based LEDs onto drive circuits. This work highlights the critical role of molecularly engineered SAMs in unlocking the high-performance cluster-based LEDs.
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Zhiqiu Yu,Guoyi Chen,Shuxin Wang,Fang Yao,Shun Zhou,Kailian Dong,Weiqing Chen,Shengjie Du,Zixi Yu,Hongyi Fang,Dexin Pu,Guang Li,Chaomin Dong,Weijun Ke,Guojia Fang
Perovskite light-emitting diodes (PeLEDs) have emerged as promising candidates for next-generation displays. However, the performance of pure-blue PeLEDs based on quasi-2D perovskites remains challenging due to abundant inner grain boundaries resulting from their inevitable multi-layered grain stacking. Here, we report a simple strategy to construct quasi-2D perovskites with ultrathin monolayer structures by utilizing substrate microstructure-induced capillary action for liquid film thinning and flattening. The resulted architecture features highly oriented ∼6.3 nm thick grains with eliminated inner transverse grain boundaries, suppressing carrier trapping and ion migration, and promoting radiative recombination. Adopting this structure, we demonstrated pure-blue (466 nm, CIE: 0.132, 0.065) PeLED with a peak external quantum efficiency of 15.0% at 56.54 cd m −2 , and a maximum luminance of 947 cd m −2 accompanied by stable electroluminescence spectra. Our strategy provides a novel pathway for regulating perovskite film structures by utilizing microstructure-induced surface effects and liquid film morphology modulation.
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NANO
·
2026
·
IF 1.3
Wenquan Hu,Qi Chen,Yifan Qin,Xixi Zhu,Tao Liu,Jiajie Jin,Ming Wang
Worsening water contamination by organic pollutants, such as industrial dyes, mineral processing reagents, and medical antibiotics, calls for the design of efficient and inexpensive remediation technologies. Herein, a new ternary nanocomposite photocatalyst SnO 2 /g-C 3 N 4 /Dt was prepared by a simple hydrothermal method and calcination, exploiting the strong photocatalytic activity of SnO 2 and g-C 3 N 4 , and the structural dispersion ability of diatomite (Dt) to construct a stable heterojunction system. Characterization results indicated that a large specific surface area, optimized pore structure, and abundant active sites were obtained, while agglomeration of nanoparticles was effectively suppressed. Under simulated visible-light irradiation, the ternary composite exhibited a broad photocatalytic activity with degradation percentages of Methyl Orange (MO), Sodium Ethyl Xanthate (SEX), and Tetracycline Hydrochloride (TCH) of 94.29%, 99.63%, and 93.31% in 60 minutes - significantly better than its single and binary counterparts. The degradation process followed pseudo-first-order kinetic behavior, with degradation rates improved by 3.5-4.1 times compared to the pristine materials. Recycling experiments also demonstrated that the SnO 2 /g-C 3 N 4 /Dt nanocomposite exhibit excellent reusability as photocatalysts and hold significant potential for application in the treatment of industrial wastewater containing organic pollutants.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Weikang Zhang,Xuefan Deng,Yanjun Chen,Xuhui Tan,Qihan Hu,Chunbo Xie,Kefeng Xie,Haibo Zhang
The photocatalytic conversion of nitrate (NO 3 − ) to ammonia (NH 3 ) represents a dual-benefit strategy for environmental remediation coupled with the recovery of a valuable chemical feedstock. In this work, we demonstrate that boron-doped black titanium dioxide materials (B x -TiO 2 ), synthesized using closo -dodecaborate dianion ([ closo -B 12 H 12 ] 2− ) as the boron (B) source, serve as efficient catalysts for photoreduction of NO 3 − to NH 3 in aqueous media under visible-light irradiation. B doping induces the formation of an amorphous phase in TiO 2 , which optimizes surface properties, narrows the band gap, and extends the optical absorption spectrum from the ultraviolet to the visible region—resulting in a significant enhancement in light utilization efficiency. Density functional theory (DFT) calculations reveal orbital hybridization between Ti and B, confirming their synergistic catalytic role. Among the series of synthesized materials, B 1 -TiO 2 exhibits the highest catalytic activity, achieving an ammonia production rate of 769.0 μmol g cat −1 h −1 , which compares favorably with previously reported systems. This work on heterogeneous B doping is expected to serve as a reference for the development of efficient catalysts in follow-up studies.
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ACS Applied Polymer Materials
·
2026
·
IF 5.2
Jipeng Wang,Yadong Chen,Qifa Gou,Chang Wu,Longbiao Yuan,Zihao Gao,Jianmin Guo,Xuelei Wang,Li Ke,Qiang Du,Tianxing Gong,Xinwei Liu,Peng Xing
Abstract Photocurable, 3D-printable conductive hydrogels hold great promise for personalized wearable sensors and flexible bioelectronic devices. However, current systems still face challenges in simultaneously achieving printability, mechanical robustness, electrical conductivity, and interfacial adhesion. In this study, an ionically conductive hydrogel system based on poly(vinyl alcohol) (PVA), polyacrylamide (PAM), tannic acid (TA), and glycerol (Gly), denoted as PATG, was fabricated by digital light processing (DLP) 3D printing. The hydrogel exhibited excellent mechanical properties, including a fracture strain of 480%, a tensile strength of 271 kPa, and a tensile toughness of 550 kJ m–3. It also achieved a compressive toughness of 90 kJ m–3 at 90% compressive strain and maintained structural stability after 100 compression cycles. Furthermore, the PATG hydrogel showed an electrical conductivity of 1.082 S m–1 and a segmented linear response over 0–480% tensile strain, with a maximum gauge factor of 13.73. Benefiting from its stretchability and ionic conductivity, PATG enabled reliable monitoring of joint motion, finger bending, and Morse code input, while its adhesion and antibacterial properties support skin-attached wearable applications. As a flexible electrode, PATG recorded electrocardiogram (ECG) and electromyography (EMG) signals with signal-to-noise ratios (SNRs) of 32.62 and 14.73 dB, respectively, showing signal acquisition capability comparable to that of commercial electrodes under the tested conditions. This work provides a multiple-network strategy for constructing personalized hydrogel-based wearable devices.
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Advanced Sustainable Systems
·
2026
·Vol. 10
·期 10
·e70671
·
IF 5.6
Jinhua Su,Hui Li,Shusheng Pan,Guoqiang Zhang
Lanthanum poly(heptazine imide) (La-PHI) is a novel, highly crystalline PHI material. However, its visible-light absorption remains weak due to the limited contribution of La 3+ to the band structure of PHI. Considering that the ionic radius of Sn 2+ is comparable to that of La 3+ , Sn 2+ can stably occupy the identical sites within the PHI framework. Meanwhile, the 5p orbitals of Sn 2+ can effectively hybridize with the N 2p orbitals, thereby introducing intermediate energy levels. Experimental results demonstrate that Sn 2+ doping generates an intermediate level at approximately 2.30 eV within the forbidden band, effectively broadening the light absorption range. Through optimizing the Sn 2+ doping amount, the photocatalytic activity of the obtained sample under 420 < λ < 780 nm is 5.3 times that of the original La-PHI. This study indicates that Sn 2 + doping is an effective strategy for extending the light absorption range, and the introduction of intermediate levels provides new insights into the design of highly efficient PHI-based photocatalysts.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Minfang Deng,Yanmin Guo,Zexi Lin,Yizhe Yang,Ruihan Lin,Enguo Chen,Sheng Xu,Tailiang Guo,Yun Ye
ZnO nanoparticles enable photoresponsive ionic hydrogels with light memory • Light-memory hydrogel TENG records recent UV exposure history • Temporal UV exposure is reconstructed from evolving material states • WMPT-Mamba identifies five UV irradiance levels with 98.6% accuracy • Self-powered wearable patch enables real-time UV monitoring and risk warning Prolonged solar ultraviolet (UV) exposure poses a growing occupational health burden, particularly for outdoor workers, yet personal UV risk is inherently cumulative and difficult to capture using sensors that primarily report instantaneous light conditions. Photoresponsive triboelectric nanogenerators (Photo-TENGs) offer a self-powered route for wearable light sensing, but their material responses have largely been exploited to enhance electrical output during illumination, leaving post-illumination state evolution underutilized as a source of exposure-history information. Here, a light-memory hydrogel triboelectric sensor (LM-gel-TENG) is developed to retain recent UV exposure through time-dependent material-state evolution. A ZnO-integrated ionic hydrogel is designed to synergistically combine mechanical adaptability, ion transport, and photoinduced charge regulation, enabling electrically readable UV-responsive triboelectric signals and persistent electrical-state enhancement after illumination. An output voltage of 228 V and a maximum photoinduced voltage enhancement of 44.86% are achieved by the LM-gel-TENG. The evolving signals are reconstructed into dark-light-memory pulse triplets, and a Wavelet-Markov Pulse-Triplet Mamba framework is developed to distinguish five UV irradiance levels with 98.6% accuracy. A mobile platform further enables real-time signal acquisition and visualization, post-event classification of five predefined UV irradiance levels, digitally calculated cumulative-dose display, and exposure-risk indication, supporting personalized wearable UV monitoring. By decoding post-illumination material-state evolution as temporal exposure information, this work advances Photo-TENGs toward exposure-history-aware self-powered sensing and offers a pathway for more individualized UV exposure awareness and proactive protection in populations facing sustained outdoor work. A light-memory hydrogel triboelectric sensor converts UV-induced material-state evolution into decodable electrical signals, achieving 40.96% voltage enhancement and light-signal retention. Integrated with WMPT-Mamba recognition and a mobile app/LED warning platform, the intelligent patch enables real-time personalized UV exposure monitoring and risk warning. Download: Download high-res image (224KB) Download: Download full-size image
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Kuibao Yu,Zhihan Lin,Tian Liu,Haolin Luo,Chao Zhong,Hao Liu,Fushan Li,Hailong Hu
A novel interfacial engineering inspired by the architecture of embankment protection is developed for CGL of tandem QLEDs. • The honeycomb oleophilic ZnO mesh effectively mitigates solvent-induced interfacial erosion and modulates charge generation. • The tandem QLEDs with modulated CGL achieve a high external quantum efficiency of 48.4% with a low turn-on voltage of 3.0 V. The efficiency and stability of tandem quantum dot light-emitting devices (QLEDs) are predominantly governed by the interfacial properties of the charge generation layer (CGL). As a promising CGL candidate, the ZnO/PEDOT:PSS heterostructure is plagued by severe interfacial erosion induced by non-orthogonal solvents during solution processing. Herein, we propose a novel interfacial engineering strategy inspired by the embankment protection principle, constructing a honeycomb-patterned oleophilic ZnO (o-ZnO) mesh as a protective barrier atop the alcohol-dispersible ZnO film. This o-ZnO mesh not only effectively mitigates solvent-induced interfacial erosion but also ensures efficient charge transport, resolving the long-standing trade-off between interfacial compatibility and charge generation. Systematic characterizations confirm that the optimized CGL enables precise modulation of charge generation efficiency via tunable geometric parameters of the o-ZnO mesh. As a result, the tandem QLED achieves a high external quantum efficiency of 48.4% with a low turn-on voltage of 3.0 V, and an operational T 95 lifetime (at a luminance of 1000 cd cm −2 ) extended to 11,445 h, which is 6 times longer than that of the control device. This work not only provides a versatile solution to the solvent compatibility issue in solution-processed tandem QLEDs but also establishes a new paradigm for interfacial engineering in optoelectronic devices.
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Materials Today Advances
·
2026
·
IF 8
Xiao Wang,Yanan Ren,Yuhao Yang,Hui Tu,Dandan Fan,Yuchuan Zhuang,Jing Li,Yanbo Dong,Andrey Tulupov,Ying Hu,Yong Zhang,Jianfeng Bao
The accelerating global crisis of multidrug-resistant infections and the physical intractability of dense bacterial biofilms demand therapeutic platforms that are both functionally active and externally controllable. Here we report the rational design and synthesis of a fuel-free, near-infrared (NIR) propelled Janus nanomotor, PCN-224@Au, that unites photothermal therapy (PTT) with sonodynamic therapy (SDT) in a single construct. Asymmetric deposition of gold onto a porphyrinic PCN-224 metal-organic framework (MOF) establishes the geometric anisotropy required for propulsion and a metal–MOF interface that promotes charge separation. Under low-power 808-nm irradiation, the Au cap converts light to heat and drives self-thermophoretic motion, yielding directed transport with ensemble speeds of ∼10 μm s −1 and super-diffusive MSD of ∼60 μm 2 at 4 s while producing a local temperature rise of 35 + °C within 600 s at 100 μg mL −1 . Ultrasound (US) activates ROS formation in PCN-224, and the Janus architecture simultaneously delivers NIR photothermal input to amplify the effect. Dual activation with NIR and US therefore delivers localized thermal stress (PTT) together with high ROS flux (SDT), producing broad-spectrum antibacterial effects against methicillin-resistant Staphylococcus aureus (MRSA) and Escherichia coli (E. coli) . Light-driven motility enhances deep biofilm penetration and nanomotor-bacteria contact, while US-activated ROS disrupt membranes and trigger cytoplasmic leakage, translating into rapid, depth-resolved sterilization with favorable hemocompatibility and cytocompatibility. By coupling controllable propulsion with sonocatalysis, this Janus nanomotor approach overcomes transport and resistance barriers and provides an effective, fuel-free platform for broad-spectrum antibacterial therapy.
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Advanced Science
·
2026
·
IF 14.1
Tingting Wu,Yajing Liu,Shuman Wang,Xiaoming Bai,Luyun Zhang,Yuwei Liu,Zhiwen Fu,Chen Shi
Mesenchymal stem cell (MSC)-based therapies hold great promise for tissue regeneration, yet precise spatiotemporal regulation of their bioactivity remains challenging. Here, we report a light-switchable MSC system (MSC-UCNPs) enabled by intracellular upconversion nanoparticles (UCNPs), which allowed remote control of exosome biogenesis and regenerative function. Upon 980 nm near-infrared irradiation, intracellular UCNPs emitted localized 365 nm ultraviolet light without compromising MSC viability. The generated UVA stimulus activated the ROS/HEXB/LAMP1 signaling cascade, suppressing lysosome–multivesicular body fusion and thereby markedly enhancing exosome production (increased to 2.7-fold). The MSC-derived exosomes exerted autocrine effects to promote MSC proliferation and osteogenic differentiation, while also facilitating osteoblast maturation via activating the Wnt/β-catenin pathway. To facilitate in vivo application, an injectable hydrogel composed of sodium alginate, calcium alginate, and hyaluronic acid was constructed through electrostatic interactions for the localized delivery of MSC-UCNPs. Positron emission tomography–computed tomography (PET-CT) imaging confirmed the in vivo light-switchable behavior of MSC-UCNPs, allowing on-demand enhancement of in situ exosome release. Benefiting from the synergistic regenerative effects of MSCs and their exosomes, this light-responsive MSC platform achieved robust cranial bone regeneration with a 3.2-fold greater bone volume fraction compared to the control group.
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高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2026
·
IF 5.1
Binhao Shen,Xiaogang Huang,Xueqin Liu,Shiyu Zhang,Lechang Xu,Yong Zhang,Wenkun Zhu
This work successfully synthesized a series of ZnS/CdS photocatalysts (ZC) via one-step hydrothermal method, in which ZC-1 (Zn/Cd = 2:1) exhibited optimal photoreduction performances of hexavalent uranium (U(VI)). The experiments results demonstrated that the reaction rate constant of ZC-1 (k = 0.0174 min −1 ) was 4.49 and 23.51 times higher than those of pristine ZnS and CdS, respectively, confirming that the combination of ZnS and CdS was a feasible strategy for remarkably strengthening the activity of U(VI) photocatalytic reduction. Meanwhile, ZC-1 reached high removal efficiency of 80.18% with an initial U(VI) concentration as high as 180 mg/L, posing a considerable U(VI) extraction capacity of 1443.26 mg/g, which was larger than numerous photocatalysts. The wonderful performances of ZC-1 might be due to its well-dispersed morphology and optimized band structure, which not only provided rich active sites, but also endowed ZC-1 with enhanced capacity of visible light harvesting and photogenerated electron-hole separation. In addition, ZC-1 demonstrated exceptional anti-interference ability and outstanding photocatalytic stability, maintaining a high U(VI) photoreduction rate of over 88% after 5 cycles. The mechanistic study showed that the effective extraction efficiency of U(VI) for ZC-1 was ascribed to the “cooperative capture and directional reduction” mechanism: The built-in electric field concentrated reductive electrons at catalytic active sites to facilitate the U(VI) reduction process, while the well-dispersed of ZC-1 synergistically enhanced UO 2 2+ capture. This study established a novel design strategy and fundamental theoretical framework for developing efficient and stable photocatalytic materials to deal with U(VI) pollution.
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