Surfaces and Interfaces
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2026
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IF 6
Tianchen Liu,Haiqin Jiang,Anning Zhao,Fulin Deng,Ruixin Zhang,Linjie Song,Yuanzhen Zhou,Jihua Nie,Min Ren,Wenlong Mao,Yunjie Xiang,Xi Rao
Regulating the exposed-facet area ratio of rutile TiO 2 is an effective route to tune charge separation, but its influence on gas-phase formaldehyde photo-oxidation remains unclear. Here, rutile TiO 2 nanorods with different (111)/(110) facet-area ratios were synthesized by an HCl-assisted hydrothermal route by varying the HCl concentration. Increasing the acid concentration promoted the formation of well-defined rutile nanorods, while the corresponding facet-area ratio decreased from 0.138 to 0.044 as the rods became longer and thinner. Among the samples, TNH-3M (R f = 0.138) exhibited the weakest photoluminescence, the highest photocurrent response, and the smallest electrochemical impedance arc, indicating the most efficient charge separation and interfacial charge transfer. Mott-Schottky analysis further showed that TNH-3M possessed the most positive valence-band position among the rutile nanorod samples, which favored the generation of •OH radicals. Accordingly, TNH-3M delivered complete removal of gaseous formaldehyde within 2 h under 420 nm LED irradiation and maintained >95% efficiency after repeated cycling. Batch synthesis also retained high activity, confirming the scalability of the preparation strategy. The improved performance is therefore attributed to the optimized balance between the oxidation-dominant (111) facets and reduction-dominant (110) facets, which promotes spatial charge separation and enhances ROS generation. Download: Download high-res image (171KB) Download: Download full-size image
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Wei Gan,Ruixin Chen,Li Zhang,Jun Guo,Naidong Chen,Wei Liu,Minfu Zhao,Zhaoqi Sun,Haihong Niu,Xucheng Fu
The combination of peroxymonosulfate (PMS) activation and photocatalytic process was an ideal approach for removing persistent organic pollutants. Here, we constructed a single-atom Co-modified S-scheme heterojunction (0.5CoCN/TiO 2 ) to achieve efficient photoexcitation synergistic PMS activation. Comprehensive characterization and theoretical calculation verified that the addition of Co atoms could strengthening the built-in electric field (BIEF) in heterojunction, which accelerates the rearrangement of Co(III)/Co(II). Meanwhile, the Co atoms bonded with the O in PMS accelerate the adsorption of PMS and facilitate the migration of photoexcitation electrons from CoCN to PMS, thereby boosting the generation of reactive oxygen species (ROS). Furthermore, Co atoms optimized the configuration of active sites, facilitating the simultaneous occurrence of non-radical pathways. Driven by the synergistic effects of Fenton-like reactions and photocatalytic reactions, the optimal heterojunction delivered outstanding catalytic activity, degrading 97.2% of sulfadiazine at a low PMS concentration. This research provides a novel strategy to promote the removal of environmentally persistent pollutants via photo-assisted PMS activation.
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RENEWABLE ENERGY
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2026
·
IF 9.1
Qingtao Wang,Rongqian Li,Xingyong Li,Yiyang Zhao,Xueyan Jing,Jing Zhang,Na Liu,Senshen Yu,Xuexiang Fu,Phidsavard Keomeesay,Olajide-rasheed Olalekan,Yubao Chen
Renewable diesel derived from biomass offers a sustainable alternative to conventional fossil fuels, yet its efficient production under mild conditions remains challenging. Herein, we report a PdPtRuCuNi high-entropy alloy/TiO 2 catalyst synthesized via a facile one-pot solvothermal method for the photothermal decarboxylation of biomass-derived oils and fatty acids into diesel-range alkanes. Structural characterizations confirm the successful formation and uniform dispersion of multicomponent HEA particles on TiO 2 . The integration of PdPtRuCuNi alloy sites with oxygen-vacancy-rich TiO 2 creates a cooperative metal–oxide interface that promotes light-induced charge separation, accelerates interfacial electron transfer, and suppresses carrier recombination. Meanwhile, the HEA/TiO 2 interface facilitates H 2 activation, hydrogen spillover, and the adsorption/activation of oxygenated intermediates, thereby enhancing the decarboxylation pathway under mild photothermal conditions. As a result, the catalyst achieves complete conversion of oleic acid with 98.8% selectivity toward renewable diesel-range alkanes at 100 °C and 0.4 MPa H 2 within 3.5 h. Moreover, it retains 91.2% selectivity toward C 15 -C 17 alkanes after ten consecutive cycles, demonstrating excellent stability. This work establishes a high-entropy-alloy/oxide interfacial strategy for efficient photothermal biomass upgrading to renewable fuels.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Runxiao Yu,Jing Lei,Yao-Yin Lou,Sheng-Peng Sun
TiC/TiO 2 ECM has good conductivity, water permeability and compressive strength. • TiC/TiO 2 ECM enables efficient electrocatalytic degradation of carbamazepine (CBZ). • Direct electron transfer plays a dominant role in degrading CBZ on TiC/TiO 2 ECM. • TiC/TiO 2 ECM has a promising application in actual water matrices. Electrocatalytic ceramic membranes (ECMs) hold great potential for advanced treatment of emerging organic micropollutants in water, however, their application is greatly limited by the tedious and complicated fabrication procedures. This study reported a novel titanium carbide (TiC)/TiO 2 ECM fabricated via a facile compression molding and sintering approach. Characterization results revealed that the TiC/TiO 2 ECM had a dominant pore size distribution of 200–300 nm, water permeability of >200 L m −2 h −1 bar −1 , with good conductivity and compressive strength. Notably, the TiC/TiO 2 ECM enabled highly efficient electrocatalytic filtration removal of representative pharmaceutical micropollutant (e.g., carbamazepine (CBZ)) under a low applied voltage of 5 V with small electrolyte concentration of 8–10 mM Na 2 SO 4 /NaCl. Radical quenching and probe testing results indicated that direct electron transfer (DET) played a predominant role in degrading CBZ, and the electrogeneration of chlorine radical (Cl • ) in NaCl electrolyte contributed to additional CBZ degradation. The TiC/TiO 2 ECM resulted in efficient electrocatalytic degradation of pharmaceuticals with electron-rich moieties (for instance, CBZ, crotamiton, trimethoprim with almost 100% removal), but with limited degradation efficiencies toward ibuprofen (75%) and diethyltoluamide (30%) because of their less electron-donating capacity. The dominant DET pathway endowed the TiC/TiO 2 ECM a good performance for CBZ degradation in actual water matrices, making it an ideal candidate for application. Download: Download high-res image (126KB) Download: Download full-size image
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Xiuyu Wang,Sijia Ren,Bingyan Shi,Liu Liu,Sam Toan,Xiaodong Wu,Sheng Cui,Xiaodong Shen
Developing efficient, stable, and low-cost photocatalysts for solar-driven CO 2 conversion is of great significance for sustainable energy. A flower-like NiAl-LDH structure with a particle size of about 3.0 μm, loaded with TiO 2 nanoparticles, is hydrothermally grown into a porous aerogel featuring an S-scheme heterojunction and an average pore diameter of approximately 13.0 nm. Under full-spectrum irradiation and without any CO-catalysts, the optimized aerogel achieves remarkably high CH 4 and CO production rates of 9.45 and 13.67 μmol·g −1 ·h −1 , representing 2.19- and 5.04-fold enhancements over pristine TiO 2 , respectively, along with excellent long-term cyclic stability. UV–vis diffuse reflectance spectroscopy and photoelectrochemical analysis clearly reveal that the S-scheme heterojunction enhances visible-light absorption and significantly prolongs the photogenerated carrier lifetime from 1.46 ns to 3.02 ns. Density functional theory calculations further reveal that compared to TiO 2 , NiAl-LDH exhibits a stronger CO 2 adsorption energy of −1.28 eV and induces significant structural deformation in the adsorbed CO 2 molecule. Band structure, electron paramagnetic resonance spectroscopy, and X-ray photoelectron spectroscopy consistently verify that before illumination, electrons spontaneously transfer from NiAl-LDH to TiO 2 , establishing a built-in electric field and inducing interfacial band bending. Upon illumination, this built-in field drives photogenerated electrons to transfer directionally from the conduction band of TiO 2 to the valence band of NiAl-LDH for recombination, thereby enabling efficient spatial charge separation and preserving high redox potentials. In situ infrared spectroscopy further reveals the CO 2 photoreduction pathway, thus supporting the proposed S-scheme-based multi-electron reduction mechanism for efficient solar fuel production
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·124533
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IF 7.5
Zhenzhen Fan,Jianheng Xin,Jinfeng Zhi,Yunpeng Wang,Wenjun Yan,Yujing Guo,Zhongping Li,Lifang Fan
Addressing water pollution and energy shortage simultaneously remains a key environmental challenge, yet conventional water treatment rarely removes pollutants while recovering energy. Phthalate esters (PAEs), a class of toxic and persistent emerging contaminants, urgently require advanced oxidation technologies. Herein, an efficient photoelectrocatalytic (PEC) system was developed based on S-scheme F-BiOF/TiO 2 nanocones (NCs) photoanode for deep degradation of the representative PAEs, dibutyl phthalate (DBP), with simultaneous hydrogen (H 2 ) evolution. BiOF was first loaded onto TiO₂ NCs to form a compact BiOF/TiO₂ interface, and subsequent electrochemical F activation regulated the interfacial electronic structure and strengthened the internal electric field, thereby promoting S-scheme heterojunction directional charge separation. This design retained the strong oxidation ability of BiOF valence-band holes and the reduction ability of TiO₂ conduction-band electrons. Density functional theory (DFT) and spectroscopic analyses confirmed that F activation significantly strengthened the internal electric field and facilitated directional charge separation, thereby boosting PEC performance. Under simulated sunlight irradiation at 0.8 V, the system achieved 96.5% DBP removal and 967.7 μmol/cm 2 H 2 production within 90 min. Notably, the H 2 yield dropped to 559.3 μmol/cm 2 without DBP, demonstrating that anodic pollutant oxidation can promote cathodic H 2 evolution. Fukui-function revealed that the degradation of DBP initiated with preferential attack on its ester group, while HeLa cell assays confirmed decreasing intermediate toxicity. The system also showed robust performance in real wastewater, highlighting its potential for integrated recalcitrant pollutant removal and clean energy recovery.
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APPLIED SURFACE SCIENCE
·
2026
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IF 6.6
Yajing Duan,Yi Yang,Xiaobing Pang,Saixin Li,Di Wang,Ling Zhu,Cunzhen Liang,Yimin Sang,Lian Yu
Indoor benzene severely threatens air quality and human health. Photocatalytic oxidation (PCO) is a promising approach for benzene removal, yet TiO 2 suffered from rapid electron-hole recombination and easy carbon deposition. Decorating TiO 2 with Pt can promote charge separation via Schottky barriers, however, Pt species were easy to agglomerate and the roles of surface hydroxyls in benzene PCO were still unclear. Herein, I-PtO x /TiO 2 was synthesized via impregnation method, there were some Ti 3+ defects in the crystal structure of I-PtO x /TiO 2 , Pt 4+ and hydroxyls were highly dispersed on catalyst surface. Under UV light irradiation, 96.88% benzene (initial concentration, 30 ppm) was degraded within 120 min, and the related reaction rate constant (0.05 min −1 ) was 2.5 times that of P25 and 3.8 times that of PtO x , benzene removal efficiency maintained above 95% after 5 cycles. Highly dispersed Pt 4+ can form a strong electronic interaction with TiO 2 , which promoted the generation of hydroxyls on the surface of I-PtO x /TiO 2 . Surface hydroxyls can adsorb and activate benzene via hydrogen bonding, they can also induce Ti 3+ defects which can synergize with highly dispersed Pt 4+ to promote charge separation. The intermediate degradation products of benzene were detected, including alcohols such as 5-Hexyn-1-ol and 3-Cyclohexene-1-methanol, unsaturated hydrocarbons like 1,3-Hexadien-5-yne, ketones such as Methyl Isobutyl Ketone, and various esters and alkanes. Benzene ring-opening and deep oxidation achieved via • OH and • O 2 − as key reactive species. This study clarified how surface hydroxyls regulated Pt 4+ electronic structure and reaction processes, it provided a guidance for designing high-performance photocatalysts for VOCs purification.
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CHEMICAL ENGINEERING SCIENCE
·
2026
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IF 5.1
Xuehan Gao,Weifeng Zhi,Dongmei Huang,Wenyu Pan,Xinhang Ma,Liyi Pan,Zequan Li,Shuangliang Zhao
Hydrogenated nitrile butadiene rubber (HNBR) is a crucial material for high-performance sealing applications; however, conventional solution hydrogenation is often limited by high noble-metal consumption and the challenges in simultaneously achieving high activity, selectivity and stability. Herein, a synergistic design strategy integrating mass transfer enhancement, bimetallic electronic synergy, and support interface stabilization is proposed for efficient NBR hydrogenation. A Pd-Ni bimetallic-doped TiO 2 -Al 2 O 3 porous composite catalyst was synthesized through a sol–gel method, in which the pore size distribution was tuned to 15–18 nm by using an F127 template to facilitate macromolecular diffusion. Partial substitution of Pd with Ni modulates the electronic structure of Pd sites, promoting H 2 dissociation and selective C=C bond hydrogenation, while the TiO 2 -Al 2 O 3 composite support provides Lewis acid–base sites and oxygen vacancies that enhance metal dispersion and catalyst stability. The optimized Pd–1Ni catalyst achieves a hydrogenation degree of 92% at 120 °C and 4 MPa, and retains over 80% of its activity after five consecutive cycles. This work demonstrates an effective strategy for balancing catalytic activity, noble-metal utilization, and operational stability in heterogeneous NBR hydrogenation systems, providing a practical reference for catalyst design in polymer hydrogenation processes.
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ANALYTICA CHIMICA ACTA
·
2026
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IF 6.1
Qinyan Chen,Qiong Lin,Yibin Zeng,Haining Li,Xiao Han,Dianping Tang,Gaoda Ju
Background The design of a fully paper-based photoelectrochemical sensing platform holds significant potential for comprehensive community cancer screening. Results A portable photoelectrochemical (PEC) immunoassay was constructed based on TiO 2 hollow cube (HTCs) homojunctions with efficient photoelectric conversion properties and a paper-based printed three-electrode system. The sensor leveraged the specific immune recognition of carbohydrate antigen 19-9 (CA19-9) to mediate horseradish peroxidase (HRP)-catalyzed conversion of 4-chloronaphthol (4-CN) into insoluble, low-conductivity 4-chloronaphthol dimer (4-CD), inducing characteristic photocurrent attenuation. Under flashlight excitation, signals were recorded using a portable nanoampere meter. The sensor exhibited a wide linear range of 0.001–50 U mL −1 for CA19-9 and an ultra-low detection limit of 0.37 mU mL −1 . Furthermore, recovery tests on clinical serum samples from potential cancer patients confirmed good accuracy, and t -test results showed no significant difference between the PEC method and clinical ELISA kits, accompanied by excellent anti-interference performance. Significance This study provides a highly sensitive and portable detection platform for CA19-9, laying a foundation for its point-of-care and home-based early screening.
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PubMed
高影响因子
Gels
·
2026
·Vol. 12
·期 2
·128
·
IF 6.4
Jiahan Guan,Wei Wang,Xiaodong Wu,Yu Xia,Bingyan Shi,Shibei Liu,Lijie Xu,Ruiyang Zhang,Yunlong Sun,Yuqian Lin
A targeted modification approach involving the synthesis of Ce/C co-doped TiO2aerogels (CeCTi) via a sol–gel method combined with supercritical CO2drying and subsequent heat treatment is employed to enhance the photocatalytic CO2reduction performance of cost-effective and stable TiO2aerogels. The results demonstrate that the CeCTi exhibits a pearl-like porous network structure, an optical band gap of 2.90 eV, and a maximum specific surface area of 188.81 m2/g. The black aerogel sample shows an enhanced light absorption capability resulting from the Ce/C co-doping, which is attributed to the formation of oxygen vacancies. Under simulated sunlight irradiation, the production rates of CH4and CO reach 27.06 and 97.11 μmol g−1h−1without any co-catalysts or sacrificial agents, respectively, which are 82.0 and 5.7 times higher than those of the pristine TiO2aerogel. DFT reveals that C-doping facilitates the formation of oxygen vacancies, which introduces defect states within the calculational band gap of TiO2. The proposed photocatalytic mechanism involves the light-induced excitation of electrons from the valence band to the conduction band, their trapping by oxygen vacancies to prolong the charge carrier lifetime, and their subsequent transfer to adsorbed CO2molecules, thereby enabling efficient CO2reduction, which is experimentally supported by photoluminescence measurements.
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高影响因子
Agronomy-Basel
·
2026
·Vol. 16
·期 3
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IF 3.4
Xiang Ye,Ruijiao Song,Juncang Qi
Nanotechnology holds great promise for alleviating drought stress in crops. This study elucidates and compares the distinct physiological mechanisms by which two nanomaterials, nano-cerium oxide (CeO2) and nano-titanium dioxide (TiO2), function as seed-priming agents to enhance drought tolerance in barley. A comprehensive analysis encompassing germination performance, hormonal dynamics, starch metabolism, osmotic adjustment, photosynthetic pigments, and the antioxidant system revealed that each nanomaterial operates through a unique pathway. Specifically, priming with 150 mg·L−1nano-CeO2(CP-150) primarily promoted root development and stress resilience. This effect was achieved by persistently reducing abscisic acid (ABA) levels, elevating gibberellin (GA3), enhancing amylase activity to mobilize seed reserves, and increasing soluble protein accumulation in roots. In contrast, priming with 500 mg·L−1nano-TiO2(TP-500) was more effective in enhancing shoot physiology and adaptive capacity by rapidly inducing auxin (IAA), robustly stimulating the antioxidant enzyme system, and increasing photosynthetic pigment content. The temporally and spatially complementary actions of these nanomaterials, with nano-CeO2fostering root-based resilience and nano-TiO2boosting shoot-level functions, synergistically support seed germination and seedling establishment under drought conditions. This study provides a mechanistic foundation for designing targeted nano-priming strategies to improve crop drought resistance.
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CERAMICS INTERNATIONAL
·
2026
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IF 6
Xiaoli Lin,Bowen Zhang,Xu Yan,Huayan Zhao,Binbin Li,Xinyu Wang
Zirconia-toughened alumina (ZTA) ceramics have become the preferred material for hip joint implants due to their excellent mechanical properties and biocompatibility. However, wear caused by friction and hydrothermal aging remains one of the major challenges. This study investigated the effects of TiO 2 addition (ranging from 0 wt.% to 1.2 wt.%) on phase composition, microstructure, mechanical properties, tribological properties, and hydrothermal aging resistance of zirconia-toughened alumina (ZTA) composites. TiO 2 -ZTA ceramics were fabricated by pressureless sintering and subjected to hydrothermal aging treatment (134 ± 2 °C, 0.2 MPa). The TiO 2 -ZTA composites were characterized before and after hydrothermal aging treatment using XRD, SEM, densitometry, and Vickers indentation techniques. Tribological tests were conducted to evaluate the influences of TiO 2 addition and hydrothermal aging. Results demonstrated that the addition of TiO 2 improved the microstructure of ZTA ceramic composites and enhanced their densification. The 0.6 wt.% TiO 2 -ZTA composite exhibited excellent performance: the hardness of 17.25 GPa, the fracture toughness of 6.08 MPa·m 1/2 , and the wear rate of 3.2×10 -6 mm 3 /Nm, with a decrease by 25.6%. After hydrothermal aging, the hardness of the 0.6 wt.% TiO 2 -ZTA composite was 17.04 GPa, and the fracture toughness was 5.75 MPa·m 1/2 . The wear mechanism of the TiO 2 -ZTA composites mainly consists of abrasive wear and adhesive wear.
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危险品化学品经营许可证（带存储）