CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Ming Li,Jingsi Sun,Liang Guo,Ruofei Jia,Shanshan Huang,Shanping Li
W-modified blue TiO 2 nanotube anodes enhanced FPF oxidation and mineralization. • Intermittent current operation lowered energy input and mitigated activity decay. • Quenching and EPR analyses identified •OH as the dominant oxidizing species. • Transformation pathways and predicted toxicity evolution were evaluated. This study developed W-modified blue TiO 2 nanotube arrays (W-modified B-TiO 2 NTA) as an energy-efficient anode for electrochemical oxidation of flupyradifurone (FPF), with boron-doped diamond (BDD) used as a benchmark. W modification and cathodic reduction retained the anatase nanotubular structure, increased double-layer capacitance, and facilitated interfacial charge transfer. Compared with B-TiO 2 NTA, W-modified B-TiO 2 NTA accelerated FPF degradation, enhanced mineralization, and reduced energy consumption, with an apparent rate constant of 1.77 × 10 −2 min −1 , compared with 1.97 × 10 −2 min −1 for BDD under the tested conditions. The 50 s on/10 s off intermittent current mode further lowered energy input and mitigated activity decay during cycling. Quenching and EPR analyses showed that •OH dominated FPF oxidation, with a possible contribution from sulfate-derived radicals. HRMS-based tentative product assignment and DFT calculations suggested hydroxylation, oxidative C N cleavage, butenolide ring opening, dealkylation, and further oxidation as plausible transformation routes. Toxicity prediction indicated an overall decline in predicted residual toxicity after prolonged electrolysis. Download: Download high-res image (172KB) Download: Download full-size image
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JOURNAL OF MEMBRANE SCIENCE
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2026
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IF 8.8
Xiangsen Xu,Qin Huang,Yajing Wu,Yiqing Zeng,Feng Zhang,Zhaoxiang Zhong,Weihong Xing
For catalytic membranes, the loading of catalysts provides the membrane substrate with novel catalytic functionality, while simultaneously inducing membrane surface reconstruction. However, the effect of such surface reconstruction on performance remains unclear. Herein, VCeTi/SiC catalytic membranes with distinct surface structures were fabricated by three distinct preparation routes. Their NH 3 -SCR activity, gas permeance, and separation performance were systematically evaluated. For both VCeTi/SiC-A and VCeTi/SiC–B, the multi-step impregnation and catalyst blockage led to significantly reduced pore sizes (7.6 μm and 5.4 μm) and poor pore size distributions. In contrast, the VCeTi/SiC–C catalytic membrane prepared by single-step solution impregnation method exhibited an optimal catalyst distribution while largely maintaining a concentrated pore size distribution almost identical to the original catalytic membrane. Benefiting from the more uniform gas flow within the carrier owing to its concentrated pore size distribution, it exhibited the widest operating temperature window for NH 3 -SCR with >90% NO conversion from 300 to 450 °C. Meanwhile, VCeTi/SiC–C also displayed the improved pore size (8.0 μm), the highest gas permeance (380 m 3 m −2 h −1 ·kPa −1 ) and the lowest filtration resistance. Furthermore, we discovered "defect-compensating effect" of dust in combined removal experiment, where dust particulates contribute to enhanced denitration performance. This work provides critical insights into the surface design of high-performance catalytic membranes for medium-high temperature gas purification applications.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
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IF 19.7
Xingjun Duan,Xiangtao Yu,Ye Wang,Binyuan Tang,Haonan Guo,Tao Yang,Yanglong Hou,Xinmei Hou
Activating lattice oxygen (O L ) redox offers a promising route for developing effective oxygen evolution reaction (OER) electrocatalysts for proton exchange membrane water electrolysis (PEMWE). However, achieving both efficient activation and rapid regeneration of O L to ensure high activity and durability for OER remains challenging. Herein, Ir-Mn-doped TiO 2 nanowires (Ir-Mn/TiO 2 NWs) were synthesized via a simple hydrothermal and annealing methods. By leveraging the oxophilicity and Jahn-Teller effect of Mn(Ⅲ), stable and controllable oxygen vacancies are induced. The electronic structure is modulated to enhance Ir-O covalency, thereby activating O L and triggering a highly active lattice oxygen-mediated pathway. On the other hand, local charge redistribution is promoted, which facilitates thermodynamically favorable adsorption of surface *OH to enable rapid O L regeneration, preventing oxygen vacancy accumulation and stabilizing active Ir sites. Consequently, the optimized catalyst exhibits a low overpotential of 179 mV at 10 mA cm −2 , and good stability exceeding 1000 h at 100 mA cm −2 . Notably, when applied in PEMWE it demonstrates a low cell voltage (1.65 V, 1 A cm −2 ) and outstanding long-term durability (0.039 mV h −1 , 1500 h@1 A cm −2 ). This study provides a valid strategy for designing efficient and stable OER catalysts for PEMWE applications.
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INORGANIC CHEMISTRY COMMUNICATIONS
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2026
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IF 5.9
Eryu Zhu,Wei Yu,Ruiyuan Wang,Chong Liu,Wei Gao,Dean Xiao,Jingsi Gao,Bing Li
Al-doping induced lattice distortion and structural defects in the TiO 2 shell. • Fe 3 O 4 imparts magnetic recoverability to the TiO 2 -Al photocatalyst. • 77.8% phosphorus mineralization of TnBP was achieved under UV irradiation. • DFT calculations reveal the engineered electronic structure boosts radical kinetics. • Photocatalytic treatment progressively reduced the biological inhibitory effect. Tributyl phosphate, a representative organophosphorus ester, is environmentally persistent due to its refractory nature, leading to widespread concern over its residue. Photocatalysis employing titanium dioxide (TiO 2 ) is a commonly studied method for degrading such pollutants, yet conventional TiO 2 systems are hindered by the high cost of requisite precious-metal cocatalysts, difficulties in recovering ultrafine catalyst powders, and rapid electron-hole recombination. To address these limitations, a TiO 2 -Al@Fe 3 O 4 photocatalyst was synthesized in this work via a sol-gel method, in which Al 3+ was doped into the TiO 2 lattice. This Al 3+ incorporation induced lattice distortion and created structural defects. The substitution of Ti 4+ by Al 3+ introduces charge imbalances and localized strain, which are key to forming active defect sites that subsequently modify the electronic structure. The modified catalyst exhibits a narrowed bandgap and an engineered surface structure that collectively further promote the generation of reactive oxygen species. Consequently, the TiO 2 -Al@Fe 3 O 4 /UV process achieved 77.8% phosphorus mineralization of tributyl phosphate within 10 h using a low photocatalyst dosage of 0.3 g/L. Furthermore, toxicity analysis indicated that most of the transformed products have lower predicted toxicity than the original parent compound. These results demonstrate that the TiO 2 -Al@Fe 3 O 4 composite functions as a magnetically recoverable and active photocatalyst, providing an effective strategy for the phosphorus mineralization of recalcitrant organophosphorus compounds. Download: Download high-res image (270KB) Download: Download full-size image
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
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IF 9.7
Jiayao Mao,Jiayang Zhao,Jiaxin Wang,Yongting Chen,Yajun Lu,Xiaohui Ren,Xingtao Liu,Feng Ma,Rongsheng Chen,Hongwei Ni
Curved carbon structure can modulate the interaction between the catalyst and the reaction intermediates and enhance the intrinsic activity of the catalyst. However, it remains a significant challenge to prepare curved carbon without surfactants or templates. Herein, we report a facile strategy to prepare curved carbon via mechanical shaking process with polydopamine (PDA) as a precursor. Then, uniformly dispersed Pt nanoparticles (Pt NPs) are planted in situ on the curved carbon structure from free-standing TiO 2 nanosheets (C-rPDA-Pt/TiO 2 NSs) to prepare ultralow Pt loading (13.4 μg cm −2 ) catalysts for acidic hydrogen evolution reaction (HER). The mass activity of C-rPDA-Pt/TiO 2 NSs is tenfold higher than that of the planar carbon supported Pt catalyst (C-sPDA-Pt/TiO 2 NSs) and four times higher than that of 40 % commercial Pt/C catalyst at an applied voltage of −0.1 V. DFT calculations suggest that curved carbon structure effectively adjusts the electronic structure of Pt active sites, thereby achieving optimal Gibbs free energy for hydrogen evolution and enhancing HER performance.
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Acta Biomaterialia
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2024
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IF 9.4
Zi Qiao,Jie Ding,Mei Yang,Yuchen Wang,Ting Zhou,Yuan Tian,Mingze Zeng,Chengheng Wu,Dan Wei,Jing Sun,Hongsong Fan
Inspired by the strong light absorption of carbon nanotubes, we propose a fabrication approach involving one-dimensional TiO 2 /Bi 2 S 3 QDs nanotubes (TBNTs) with visible red-light excitable photoelectric properties. By integrating the construction of heterojunctions, quantum confinement effects, and morphological modifications, the photocurrent reached 9.22 µA/cm 2 which is 66 times greater than that of TiO 2 nanotubes (TNTs). Then, a red light-responsive photoelectroactive hydrogel dressing (TBCHA) was developed by embedding TBNTs into a collagen/hyaluronic acid-based biomimetic extracellular matrix hydrogel with good biocompatibility, aiming to promote wound healing and skin function restoration. This approach is primarily grounded in the recognized significance of electrical stimulation in modulating nerve function and immune responses. Severe burns are often accompanied by extensive damage to epithelial-neural networks, leading to a loss of excitatory function and difficulty in spontaneous healing, while conventional dressings inadequately address the critical need for nerve reinnervation. Furthermore, we highlight the remarkable ability of the TBCHA photoelectric hydrogel to promote the reinnervation of nerve endings, facilitate the repair of skin substructures, and modulate immune responses in a deep burn model. This hydrogel not only underpins wound closure and collagen synthesis but also advances vascular reformation, immune modulation, and neural restoration. This photoelectric-based therapy offers a robust solution for the comprehensive repair of deep burns and functional tissue regeneration. Statement of significance We explore the fabrication of 1D TiO 2 /Bi 2 S 3 nanotubes with visible red-light excitability and high photoelectric conversion properties. By integrating heterojunctions, quantum absorption effects, and morphological modifications, the photocurrent of TiO 2 /Bi 2 S 3 nanotubes could reach 9.22 µA/cm², which is 66 times greater than that of TiO 2 nanotubes under 625 nm illumination. The efficient red-light excitability solves the problem of poor biosafety and low tissue penetration caused by shortwave excitation. Furthermore, we highlight the remarkable ability of the TiO 2 /Bi 2 S 3 nanotubes integrated photoelectric hydrogel in promoting the reinnervation of nerve endings and modulating immune responses. This work proposes an emerging therapeutic strategy of remote, passive electrical stimulation, offering a robust boost for repairing deep burn wounds.
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JOURNAL OF VINYL & ADDITIVE TECHNOLOGY
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2025
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IF 3.6
Shumao Zeng,Diannan Lu,Rui Yang
Incorporating fillers into polyethylene (PE) has emerged as a crucial strategy for modulating its thermo-oxidative aging. However, the mechanistic differences among various fillers remain insufficiently understood at the atomic level. To address this issue, this study combines ab initio molecular dynamics (AIMD), first-principles calculations, and thermo-oxidative experiments to investigate the effects of two commonly used fillers, TiO 2 and ZnO, on the thermo-oxidative aging of PE. The results reveal that both fillers promote the dissociation of C–H bonds of PE. TiO 2 enhances the formation of alkyl radicals, driving the generation of hydroxyl and carbonyl groups on the polymer chains. In contrast, ZnO, with its inherently less stable surface structure, exhibits a stronger effect on C–H bond dissociation, leading to significant crosslinking reactions in PE and the development of vinyl groups. These groups are less reactive toward oxygen (O 2 ), hindering the formation of hydroxyl and carbonyl groups by reducing the density of reaction sites between O 2 and carbon chains. Understanding the intricacies and mechanisms of these processes not only deepens our knowledge of the fundamental aspects of PE's thermo-oxidative aging but also provides a basis for designing fillers to effectively regulate its aging behavior.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
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IF 9.7
Haoguang Wang,Bo Huang,Xinrui Miao,Wenli Deng
Since most superamphiphobic coatings contain fluorinated materials, finding eco-friendly alternatives is essential. In recent years, researchers have focused on integrating eco-friendly photocatalytic materials into superhydrophobic coatings to degrade organic pollutants effectively. We successfully designed a porous ZrO 2 @TiO 2 (porous ZT) photocatalyst using a combination of the solvothermal, sol–gel, and calcination methods. Porous ZT was modified with polydimethylsiloxane (PDMS) to create a kind of ZrO 2 @TiO 2 @PDMS (porous ZTP) suspension. The ZTP suspension was then sprayed onto various substrates and heated at 400 °C for 2 min to produce a porous ZrO 2 @TiO 2 @PDMS (porous H-ZTP) composite coating. The porous H-ZTP coating demonstrates extremely low surface energy (2.37 mN/m), allowing it to prevent contamination from various liquids encountered in daily life while exhibiting outstanding superhydrophobic properties (WCA > 160°, SA < 2°). Additionally, it can decompose organic substance (RhB) under light irradiation, showcasing effective physical and chemical self-cleaning abilities. After exposure to ultraviolet light, the coating can decompose oleic acid and restore its initial superhydrophobic state. Further investigation into the mechanism of photocatalytic degradation reveals that the unique heterojunction structure of the porous ZT significantly enhances its photocatalytic activity. The porous H-ZTP applied to stainless steel mesh shows excellent flux (40,000 L·h −1 m −2 ) and efficiency (99 %) for oil–water separation. This research is significant for developing and applying self-cleaning coatings that combine physical superhydrophobic and chemical photocatalytic properties.
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Journal of Cleaner Production
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2026
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IF 10.7
Shanshan Sun,Yurong He,Tianqi Tang,Siyu Hui
While semiconductor-based photocatalysis presents a promising avenue for CO 2 reduction, the application of conventional TiO 2 is restricted by its limited light absorption, short photogenerated charge carrier lifetime, and poor CO 2 adsorption capability. To overcome these constraints, we constructed multifunctional Ag/Cu-TiO 2 /graphitic-phase polyacrylonitrile (g-PAN) composites. In this system, g-PAN functions as a robust support for Ag/Cu nanoparticle-loaded TiO 2 fibers synthesized via electrospinning and heat treatment. UV–Vis NIR DRS analysis reveals synergistic light harvesting where the localized surface plasmon resonance of Ag/Cu nanoparticles extends absorption into the near-infrared and g-PAN doubles the intensity by trapping photons within nanocavities. Beyond these optical benefits, g-PAN enhances CO 2 adsorption and accelerates charge transfer. Consequently, the Ag/Cu-TiO 2 /g-PAN composite achieves a CO evolution rate of 11.82 mmol/g/h under simulated solar irradiation, representing a twice increase compared to the Ag/Cu-TiO 2 counterpart. As evidenced by Electrochemical Impedance Spectroscopy and instantaneous photocurrent response, g-PAN acts as an electronic bridge that significantly reduces the resistance to photogenerated charge migration. This study provides novel insights into designing highly efficient composite photocatalysts for sustainable CO 2 conversion, contributing to the advancement of cleaner production and green technologies.
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BIOSENSORS & BIOELECTRONICS
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2026
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IF 11.8
Ying Hou,Min Zhu,Xiaoxue Tian,Ruixian Xu,Yakun Wan,Juan Li,Yue Jia
The reliable detection and quantification of adeno-associated virus serotype 9 (AAV9) is crucial for gene therapy development and quality control. This work presents a significant advancement by developing a novel, nanobody-based photoelectrochemical (PEC) immunosensor for the highly sensitive and specific detection of AAV9. The core is a laser-synthesized multiphase TiO 2 heterojunction photoanode fabricated directly on a titanium substrate. This one-step, mask-free laser processing technique ensures excellent material consistency and superior photocurrent response, overcoming the batch-to-batch variability associated with traditional electrode modification methods. The sensing interface is further engineered by immobilizing a high-affinity anti-AAV9 nanobody, which offers minimal steric hindrance and enhanced epitope accessibility compared to conventional antibodies. The synergistic integration of a high-performance multiphase photoactive material with a biological recognition element, resulting in a satisfactory sensing platform. The fabricated immunosensor demonstrates a wide linear detection range from 5 × 10 7 to 1 × 10 10 vg/mL (vg/mL: viral genomes per milliliter) for AAV9, with a remarkably low calculated detection limit (LOD) of 1 × 10 7.2 vg/mL and limit of quantitation (LOQ) of 3 × 10 7.2 vg/mL. To our knowledge, this represents the first successful application of an AAV9-specific nanobody within a PEC biosensing platform. This study not only provides a powerful tool for virological analysis but also establishes a versatile framework that can be adapted for detecting other viral targets by exchanging the nanobody probe, showcasing broad potential in biomedical diagnostics.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Qian Zhong,Jin Liu,Gaoke Zhang
Visible-light photocatalytic activation of peroxymonosulfate (PMS) is a promising strategy for treating refractory organic pollutants. In this study, a novel nitrogen-doped TiO 2 /Ti 3 C 2 MXene composite (N-TiO 2 /Ti 3 C 2 ) was synthesized via an impregnation-calcination method using cetyltrimethylammonium bromide (CTAB) as the nitrogen source. N-doping effectively narrowed the bandgap of TiO 2 , while the highly conductive Ti 3 C 2 MXene served as an electron-transfer platform, thereby synergistically enhancing light absorption and charge carrier separation. The N-TiO 2 /Ti 3 C 2 exhibited a Brunauer-Emmett-Teller surface area of 35.86 m 2 /g, approximately 1.94 times higher than that of the undoped TiO 2 /Ti 3 C 2 , due to CTAB intercalation-induced structural regulation. Under LED visible light, the N-TiO 2 /Ti 3 C 2 /PMS system achieved 98.5% of rhodamine B degradation within 100 min and 81.3% of tetracycline degradation within 40 min, with good stability over a wide pH range (3.1-10.0). Mechanistic studies identified that sulfate radicals (SO 4 • − ), singlet oxygen ( 1 O 2 ), and holes (h⁺) were the dominant reactive species. LC-MS analysis elucidated the degradation pathways of rhodamine B and tetracycline. This study presents an efficient MXene-based photocatalyst for PMS activation, offering a promising strategy for wastewater treatment.
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POLYMER ENGINEERING AND SCIENCE
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2026
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IF 3.6
Yunfeng Zhu,Lang Feng,Jiaqi Lai,Guangyao Hu,Jingjing Yang,Juan Zhang
The versatile polyurethane (PU) has been widely used in industrial and civil products due to the diversity of structure composition and adjustable mechanical properties. However, PU is prone to aging under UV light and thermal exposure due to its molecular structure, which includes UV-sensitive carbonyl and urethane groups as well as oxygen-susceptible ether bonds. Thus, this study proposes to modify rutile titanium dioxide (TiO 2 ) nanoparticles with 2,2′-methylenebis(6-tert-butyl-4-methyl-phenol) (antioxidant 2246) by using toluene-2,4-diisocyanate (TDI) as a molecular bridge to form a nanoscaled titanium dioxide-immobilized antioxidant, M-TiO 2 composites, and then incorporate M-TiO 2 composites into PU adhesives to achieve synergistic effects in improving their photo- and thermo-oxidative aging resistance. The results indicate that the antioxidant 2246 molecules are chemically anchoring onto the surface of the TiO 2 particles and the modified TiO 2 particles show better dispersibility in PU matrix and are more efficient in improving the lap shear strength of PU adhesives than pure TiO 2 . PU adhesives containing M-TiO 2 composites exhibits superior aging resistance during the long-time accelerated photo- and thermo-oxidative aging, because of the synergistic effects of the UV-shielding properties of titanium dioxide particles and the neutralizing free radical capacity of antioxidant 2246. Highlights Antioxidant 2246 was chemically immobilized onto TiO 2 nanoparticles. TDI functioned as a molecular bridge between TiO 2 and antioxidant 2246. Surface modification improved TiO 2 dispersibility in the PU matrix. M-TiO 2 enhanced lap shear strength of PU adhesives. M-TiO 2 improved photo- and thermo-oxidative aging resistance of PU adhesives.
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