Catalysts
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2026
·Vol. 16
·期 10
·916
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IF 4.5
Shuwei Wang,Jinhua Liu,Weijie Liu,Yiting Jia,Ning Liu,Yifan Ren,Yanni Zhang,Jingjing Zhang,Peng Zhao,Peng Sun
Photocatalytic coatings that can be immobilized on outdoor surfaces provide a promising route for distributed and passive purification of atmospheric pollutants. The practical application requires not only visible-light photocatalytic activity but also stable dispersion, facile coating and favorable interfacial properties. In this work, N-doped TiO2(N-TiO2) sols with different nominal doping contents were prepared through hydrothermal treatment of peroxotitanic acid precursors containing different amounts of urea at 130 °C for 4 h. All samples exhibited anatase phase, while the shifts in XRD and Raman peaks indicated nitrogen-doping-induced lattice distortion. The sols exhibited monomodal particle size distributions with average hydrodynamic diameters in the range of 20.13 nm to 27.07 nm, and the high absolute zeta potentials (>30 mV) demonstrated good dispersion stability. The XPS results confirmed that nitrogen atoms were introduced at interstitial sites with Ti-O-N bonds and increased the relative proportion of surface hydroxyl oxygen from 13.9% to 34.2%. Nitrogen doping improved the visible-light absorption by decreasing the bandgap from 3.06 eV to 2.81 eV and reduced the water contact angle of the sol-derived films from 24.0° to as low as 8.6°. Among all samples, 1.0N-TiO2exhibited the highest NO removal efficiency of 72.5% under visible-light irradiation and retained good stability over five photocatalytic cycles. These results demonstrate that moderate nitrogen doping can simultaneously regulate the colloidal, optical and interfacial properties of TiO2sols, making them promising coating materials for functionalization of building envelopes or other outdoor surfaces for air purification.
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Environmental Science-Nano
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2024
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IF 5.8
Yuxuan Shao,Dan You,Yuqi Wan,Zhiquan Pan,Qingrong Cheng
A novel hyper-crosslinked triazine-based COF (HCTF-2) photocatalyst was prepared by a simple molecular expansion method. Compared with CTF-2, HCTF-2 showed excellent photocatalytic performance under visible light irradiation. The photodegradation efficiency of HCTF-2 for some pollutants (20 ppm tetracycline (TC), 30 ppm rhodamine B (RhB), 20 ppm levofloxacin hydrochloride (LEF) and 20 ppm methylene blue (MB)) can reach more than 99% in a short time. Meanwhile, HCTF-2 had a stronger hydrogen production rate (2728.61 μmol h−1 g−1), which was 5.11 times higher than that of CTF-2 (534.12 μmol h−1 g−1). Molecular oxygen activation experiments confirmed that HCTF-2 exhibited strong oxidation capacity for 3,3′,5,5′-tetramethylbenzidine (TMB), and superoxide radical and hydrogen peroxide generation ability. The photodegradation active species were identified through free radical trapping experiments and ESR. Moreover, the possible degradation pathways of LEF were analyzed by liquid chromatography-mass spectrometry (LC-MS). The enhanced photocatalytic ability of HCTF-2 was attributed to the strong absorption of visible light and the porous braided structure leading to a larger specific surface area with higher carrier separation efficiency. This research provided a strategy for the development of specially structured COFs for photocatalytic applications and more efficient improvement of photocatalytic efficiency.
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OPTICAL MATERIALS
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2025
·
IF 4.2
Zongbin Liu,Xiaojiao Yu,Kai Wang,Yuchen Wei,Jian Zhang,Jinfen Niu
Photocatalytic technology has received a great deal of attention due to its high efficiency and environmentally friendly properties in the treatment of wastewater. MXene, a rapidly expanding family of two-dimensional materials, is widely used in various fields due to its unique layered structure, large specific surface area, excellent hydrophilicity and strong electrochemical performance. In this paper, a simple hydrothermal method has been used to synthesize Cu 2 O-MXene(Ti 3 C 2 ) photocatalysts. The successful introduction of Ti 3 C 2 MXene reduced the surface transfer resistance to promote electron transfer, effectively inhibited electron-hole complexation and increased the specific surface area of the catalyst. The prepared samples have excellent photocatalytic properties due to the above-mentioned advantages. Efficient degradation of antibiotics was achieved with the maximum degradation rate of sulfamethazine (SM2) by M 2 -Cu 2 O reaching 85.7 % in 160 min. It was experimentally confirmed that • O 2 ‐ and h + played the major roles in the degradation process, and possible degradation pathways and photocatalytic mechanisms were proposed in conjunction with HPLC-MS/MS. Finally, the intermediate products were tested for their biotoxicity. This work provides a strategy for the construction of highly catalytically active Cu 2 O-based catalysts.
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FUEL
·
2025
·
IF 7.5
Yanxu Wang,Jiao Shen,Lijia Huang,Yi Yuan,Yaoqi Huang,Ge He,Yuan Wang,Shaojun Yuan
S-scheme heterojunction photocatalysts have emerged as a promising strategy to overcome the limitations of conventional systems by enabling efficient charge transfer while preserving strong redox capability. In this study, a novel flower-like In-TiO 2 @Bi 2 MoO 6 S-scheme heterojunction was developed via a simple hydrothermal synthesis for visible-light-driven photocatalytic desulfurization of H 2 S. The optimized In-TiO 2 -0.4@Bi 2 MoO 6 composition (molar ratio of In-TiO 2 to Bi 2 MoO 6 = 0.4) achieved complete H 2 S removal within 120 min under visible-light irradiation, exhibiting outstanding activity, operational stability, and adaptability to various desulfurization conditions. Mechanistic investigations using VB-XPS, UPS, ESR, DRIFTS and DFT calculations confirmed that the S-scheme configuration accelerated photoinduced charge separation, reduced electron migration distances, and maintained a high redox potential, thereby promoting efficient generation of reactive oxygen species for sulfur conversion. The synergistic interaction between In-TiO 2 and Bi 2 MoO 6 provides a robust platform for efficient, selective, and durable desulfurization under mild conditions. These findings offer a mechanistic framework for designing next-generation S-scheme photocatalysts for environmental remediation and energy-related applications.
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Biomaterials Advances
·
2025
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IF 6
Jianfei Bai,Chunyu Han,Yuqi Gao,Dezhou Wang,Shuang Yang,Guanliang Liu,Huichao Sun,Shengrui Gao,Wanzhong Yin,Wenzhi Song
Objectives This study developed a near-infrared (NIR) light-responsive shape-memory plant-based resin bone scaffold via ultraviolet-assisted direct ink writing (UV-DIW) to address limitations in existing acrylated epoxidized soybean oil (AESO) scaffolds, including mismatched glass transition temperature (Tg) with physiological conditions and reliance on external heat sources. Methods Polydopamine-modified hydroxyapatite (HA@PDA) particles were blended into liquid AESO to prepare four composite inks with HA@PDA mass fractions of 0 % (AESO), 5 % (A5), 10 % (A10), and 15 % (A15). Bone scaffolds were fabricated using UV-DIW technology at 0 °C. The scaffolds implanted in bone defects could achieve remote temperature regulation via NIR irradiation to induce deformation. Mechanical properties, thermal transitions, photothermal performance, shape-memory behavior, and osteogenic activity were systematically investigated. Results Increasing HA@PDA content significantly improved the scaffolds' printing accuracy, surface hydrophilicity , photothermal performance, shape-memory properties, and biocompatibility. A15 exhibited uncured resin during tensile tests and was excluded from subsequent analyses. The Tg values of AESO, A5, and A10 approached body temperature. A10 demonstrated optimal performance , achieving 40 °C within 4 min under 1 W/cm 2 NIR irradiation and a shape recovery rate of 97 % within 16 s. Significance A10 scaffold exhibited NIR-responsive shape memory properties, enabling minimally invasive implantation through compressed miniaturized configurations and precise shape recovery under targeted NIR irradiation, while retaining post-implantation dynamic reconfiguration capabilities through non-invasive NIR stimulation. The integrated design methodology combines patient-specific design with minimally invasive delivery and remote postoperative control, addressing the limitations of rigid static implants by enabling adaptable bone scaffolds for personalized tissue regeneration .
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JOURNAL OF MOLECULAR STRUCTURE
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2025
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IF 4.7
Xianze Li,Yue Zhong,Tao Su,Yang Li,Wenming Wang,Jing Xie,Chao Wang,Yan Pan,Xiantao Wei,Yong Li
The advancement of White light emitting diodes (WLEDs) drives the demand for efficient red-emitting phosphors with superior thermal stability. In this paper, a series of Sr 3 TaGa 3 Si 2 O 14 : Sm 3+ phosphors with excellent thermal properties were successfully synthesized via high-temperature solid-phase method. The crystal structure, luminescent properties and thermal stability of the samples were systematically investigated. Under 402 nm near-ultraviolet excitation, the fluorescence emission spectra of Sr 3 TaGa 3 Si 2 O 14 : Sm 3+ with different doping concentrations were obtained, and the optimal Sm 3+ doping concentration was found to be 0.03 mol. Co-doping with M ( M = Li + , Na + , and K + ) as charge compensation ions can improve the luminescent performance of Sr 3 TaGa 3 Si 2 O 14 : Sm 3+ . Furthermore, the luminescent intensity ( 4 G 5/2 → 6 H 7/2 ) of this phosphor at 420 K remains at 74.2 % of its initial temperatures (300 K), demonstrating excellently thermal stability. The temperature sensing characteristics based on Fluorescence Intensity Ratio (FIR) technique was investigated and the maximum absolute and maximum relative sensitivities of the Sr 3 TaGa 3 Si 2 O 14 : 3 mol% Sm 3+ samples were 6.52 % and 0.80 %, respectively. In addition, the quantum yield of Sr 3 TaGa 3 Si 2 O 14 : 3 mol% Sm 3+ , 3 mol% Na + was measured to be 44.0 %, and the WLEDs fabricated with it could emit bright white light with CIE chromaticity coordinates of (0.28, 0.33). Therefore, the synthesized phosphors have great potential for applications in optical temperature measurement and solid-state lighting.
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Journal of Bionic Engineering
·
2026
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IF 4.4
Chang Jiaqing,Gao Song,Dong Chaowei,Li Zhaobang,Liu Yang,Cui Jinsheng
In narrow, unstructured environments such as environmental monitoring and minimally invasive medical procedures, micro soft robots exhibit unique advantages due to their flexible movement capabilities and small size. Existing micro soft robots often employ single physical field control, making it difficult to achieve multi-dimensional complex movement behaviors. This study, based on the bio-mimicry of the swimming principle of the cownose ray, designed and prepared a cownose ray-inspired micro soft robot with dual light and magnetic responsiveness. Firstly, a photosensitive hydrogel was prepared using a certain proportion of hollow glass microspheres (HGMP), polydopamine (PDA), poly(N-isopropylacrylamide) (PNIPAM), and agarose. Under 808 nm near-infrared light irradiation, the hydrogel achieves a maximum upward floating speed of 23.31 mm/s in water. Then, a magneto-elastic composite film was prepared using a certain proportion of neodymium-iron-boron (NdFeB) and polydimethylsiloxane (PDMS), which will undergo controllable bending deformation under the action of a magnetic field. Finally, by integrating the photosensitive hydrogel and the magneto-elastic film, a cownose ray-inspired micro soft robot with both light and magnetic responsiveness was prepared. By controlling the on-off state of near-infrared light, the robot can achieve multi-modal behaviors such as floating, moving, diving, and hovering. Simultaneously, it can perform straight swimming under magnetic field drive. This study enriches the driving modes of micro soft robots and provides a reference method for the multi-physical-field driving of robots in complex environments.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
·
IF 6.7
Wenlong Ma,Hanqi Zhang,Long Zhao,Die Xu,Tongtong Xuan,Xiaojun Wang
Developing high-performance cyan-green phosphors is essential for addressing the long-standing spectral deficiency in full-spectrum white light-emitting diodes (white-LEDs). Here, we report a broadband cyan-green-emitting phosphor, Cs 2 KLuCl 6 :Sb 3+ , synthesized via a facile HCl-assisted solid-state route that supports low-temperature processing and scalable fabrication. Sb 3+ incorporation modulates the electronic structure of Cs 2 KLuCl 6 by narrowing the bandgap from 5.07 to 3.70 eV and inducing pronounced Sb-Cl-Lu orbital hybridization, which stabilizes self-trapped excitons (STEs) and promotes efficient radiative recombination. Under 330 nm excitation, the optimized phosphor exhibits intense broadband cyan-green emission centered at 513 nm with a full width at half maximum of ∼108 nm and a high photoluminescence quantum yield of 82%. The phosphor also demonstrates excellent thermal robustness, retaining 91% of its room-temperature emission intensity at 423 K, with a high thermal activation energy of 0.2874 eV. When integrated with commercial blue- and red-emitting phosphors on a 365 nm LED chip, the resulting white-LED delivers high-quality white light with a color rendering index of 92 and a correlated color temperature of 4671 K, effectively eliminating the cyan spectral gap. These results establish Cs 2 KLuCl 6 :Sb 3+ as a promising cyan-green phosphor for next-generation full-spectrum solid-state lighting.
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Bioactive Materials
·
2026
·
IF 23.6
Wang J,Chen Z,Yang Y,Wang Y,Xie H,Hong W,Lin Q.
Choroidal melanoma, the most prevalent subtype of uveal melanoma with a bleak prognosis, necessitates safer and more efficient treatment methods. Tumor cell membrane-modified nanodelivery systems have exhibited significant enhancement in photodynamic therapy (PDT). Currently, photosensitizers utilized in PDT encompass porphyrin-related organic molecules and other types, requiring complex and intricate systems construction. This study focuses on harnessing the naturally occurring photodynamic active photosynthetic unit-thylakoid which serve as a major source of singlet oxygen. Initially, thylakoids extracted from fresh leaves were identified based on their absorbance value, morphology, and characteristic proteins. The tumor cell membrane-thylakoid membrane (CM-Thy) photodynamic therapy system was prepared through ultrasonic fragmentation and liposomal extrusion technology. Due to its membrane targeting ability, CM-Thy demonstrated excellent uptake performance towards OCM-1 cells within intraocular tissues. Both in vitro and in vivo experiments confirmed CM-Thy's photodynamic activity. Specifically, Thy in the system generates singlet oxygen, after cellular internalization, the elevated intracellular reactive oxygen species (ROS) triggered by this process induce cell lipid peroxidation and increased membrane permeability, while singlet oxygen further mediates DNA oxidative damage, reduced cell proliferation capacity, and NLRP3 inflammasome-mediated pyroptosis, all these effects synergistically contribute to ultimate tumor cell apoptosis. Furthermore, the anti-tumor effect of CM-Thy was validated through various mechanisms involved in tumor formation such as angiogenesis and vasculogenic mimicry. Interestingly, the results from visible light experiments conducted in vitro also substantiated the remarkable therapeutic efficacy of this system for refractive eye disorders while providing innovative ideas for cross-species biological interventions.
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ACS Applied Polymer Materials
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2026
·
IF 5.2
Tianyu Ni,Runjie Li,Cheng Yue,Jie Cen,Wenjin Li,Guihai Gan,Jian Cheng,Yanmei Wang
Carbon monoxide, an endogenous gaseous signaling molecule, has attracted increasing attention because of its therapeutic potential for cancer treatment. Herein, we report a photoresponsive nanoparticle constructed from a metal–carbonyl-conjugated polypeptide for synergistic cancer therapy. Upon 650 nm irradiation, the nanoparticle simultaneously releases carbon monoxide and generates catalytically active manganese species. Mechanistically, carbon monoxide impairs mitochondrial function and disturbs cellular bioenergetics, whereas manganese species deplete intracellular glutathione and induce oxidative damage through Fenton-like hydroxyl-radical generation. This dual-action process integrates gas therapy with catalytic therapy, resulting in amplified oxidative stress and efficient tumor cell eradication. Importantly, both in vitro and in vivo experiments demonstrated potent antitumor efficacy and favorable biosafety under red light activation. Collectively, this work provides a promising strategy for the development of photoresponsive nanoplatforms for synergistic cancer therapies.
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Advanced Science
·
2026
·
IF 14.1
Zetong Li,Wei He,Guangji Wang,Jingwei Zhang,Zhimin Chai,Xinchun Lu
Metal oxides exhibit high transparency across the visible spectrum, making them challenging to anneal via flash lamp annealing (FLA). Whether such materials can effectively absorb light and self‐heat remains debated. Conventional workarounds often involve light‐absorbing layers; however, these approaches introduce complexity to the fabrication process and impose limitations on device architecture. Here, we introduce a FLA strategy that enables conversion of metal oxide sol–gels into functional oxides per layer within tens of seconds on both silicon and ultra‐thin glass (UTG) substrates—without additional light‐absorbing layers—by employing a mullite chuck. Finite element analysis (FEA) results indicate that the gel‐to‐oxide transformation is initiated by direct light absorption within the metal oxides. The low thermal conductivity of mullite restricts heat dissipation, facilitating a temperature rise in the metal oxide layers with increasing pulse count and promoting complete conversion. FEA further reveals that metal oxides on UTG attain lower temperatures than those on silicon, due to greater heat dissipation into the UTG substrate. We demonstrate all‐solution‐processed thin‐film transistors and functional logic gates using FLA‐processed metal oxides. This approach shortens fabrication time by two orders of magnitude without sacrificing device performance, highlighting its potential for high‐throughput production of complex integrated circuits. A flash lamp annealing strategy using a mullite chuck enables rapid conversion of sol–gels to metal oxides on silicon and ultra‐thin glass without extra light‐absorbing layers. Direct light absorption initiates the transformation, and the low thermal conductivity of mullite promotes heat accumulation. All‐solution‐processed electronics fabricated in this way shorten processing time by two orders of magnitude while maintaining performance.
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CHEMICAL ENGINEERING RESEARCH & DESIGN
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2026
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IF 4
Yaran Wen,Feiyu Wang,Yaxiao Li,Jinmeng Kang,Wandi Chen,Wenzhi Kang,Yuxin Du,Yixuan Chen,Yudong Xu
This study aimed to develop an efficient, stable, and environmentally-friendly photocatalyst for degrading methylene blue (MB) under visible irradiation. Bio-compatible and nanorod-like hydroxyapatite (HAP) was synthesized using a chemical co-precipitation method, showing that HAp achieved a degradation efficiency of 99.41% within 90 min for 10 mg/L MB with an optimal catalyst dosage of 2 g/L, which was ascribed to the active radicals such as h + , 1 O 2 , and ·O 2 - induced by photo-sensitization of MB dyes and surface adsorption of HAP. It is shown that HAp exhibits good structural stability and re-usability. And a degradation pathway for MB involving stepwise demethylation, ring opening, and subsequent mineralization was also proposed. This research is believed to promote the practical applications of hydroxyapatite in photocatalytic treatment of dye wastewater.
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