Journal of Environmental Chemical Engineering
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2026
·Vol. 14
·期 2
·121502
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IF 7.2
Xinyi Dong,Ya Chu,Weiqiang Zhang,Baoye Hu,Jinsheng Zhao,Yue Liu,Shiyu Wang,Guangjiu Zhao
In this work, S-scheme Ti-MOF/Cs 2 AgBiBr 6 heterojunction photocatalysts were developed via an in situ self-assembly strategy, achieving satisfactory interfacial contact, matched band alignment, enhanced charge separation, and redox activity. The optimized Ti-MOF/Cs 2 AgBiBr 6 composite exhibited remarkable photocatalytic performance toward benzyl alcohol oxidation under visible light, achieving > 99 % conversion and selectivity without external oxidants and sacrificial agents. It represents a fourfold enhancement over individual components, while maintaining broad substrate applicability and excellent cycling stability. The S-scheme configuration ensures sufficient oxidation potential compared with conventional Type-II systems. This work addresses challenges of limited bandgap tunability and inefficient carrier transport in selective aromatic alcohol oxidation, establishing a promising strategy for designing efficient lead-free perovskite photocatalysts toward sustainable organic transformations.
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JOURNAL OF MEMBRANE SCIENCE
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2026
·
IF 9
Xiaochan An,Yutong Gu,Wenping Wang,Jianxiao Wang,Yongxin Cui,Hongbing Luo,Ke Zhang,Liangqian Fan,Wei Chen
Membrane-fouling in forward osmosis (FO) process has limited its application in drug-containing wastewater treatment. Advanced membrane coupled photocatalytic oxidation process has drawn growing interest. In this study, functional photocatalytic thin-film composite (TFC) membranes modified using metal-organic framework of NH 2 -MIL-125(Ti) (NM125) were prepared through simple blending during interfacial polymerization process. Due to the intrinsic hydrophilicity and photocatalytic properties of the nano-sized NM125, the modified TFC membrane (NM-6) demonstrates improved permeability-selectivity with a A/B value of 16.19 bar -1 , outstanding light-response functionality (the photocatalytic efficiency is 80.95 % for tetracycline hydrochloride (THC) and 66.76 % for ibuprofen (IBU)), and ∼100 % rejection of THC and IBU in nearly all the FO tests. Furthermore, NM-6 displays excellent operation stability with a 5 % water decline and 98 % water recovery for treating THC-containing feed solution under light irradiation (0.64 kW/m 2 ), while the control membrane of NM-0 showed 22 % of water decline and 85 % water recovery. Our membrane with the property of photocatalytic self-cleaning opens opportunities for developing next-generation anti-fouling forward osmosis membranes.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Chao Peng,Tianyu Li,Huitao Lv,Jiaqi Chen,Yun Xue,Yongde Yan,Fuqiu Ma,Guoxin Tian
The efficient removal of uranium from organic-containing uranium wastewater (OCUW) presents significant technical challenges. Titanium dioxide (TiO 2 ) demonstrates high activity toward uranium reduction, rendering it an excellent electrode candidate for direct electrochemical reduction to remove uranium from such wastewater. In this study, a novel titanium dioxide electrode was fabricated via a facile one-step annealing method for highly efficient uranium electro-separation and recovery from OCUW. The Ti 9 O 17 /Ti electrode exhibited remarkable uranium removal performance across a wide pH range (3−11) and uranium concentration range (10–500 ppm), achieving a removal efficiency of over 93 % within 5 h. Moreover, it demonstrated strong anti-interference capability against coexisting organic matters, except for NH 4 NO 3 , achieving a uranium removal efficiency of 99.89 % within 3 h even in authentic complex OCUW containing high concentrations of THFA, PVA, urea, and NH 4 NO 3 . Notably, the electrode retained a uranium removal efficiency exceeding 90 % after 15 consecutive separation-recovery cycles, and over 85 % of the uranium could be rapidly recovered using dilute nitric acid. Mechanistic studies revealed that uranyl reduction follows a diffusion-controlled single-electron transfer mechanism, and the mechanistic process of electro-separation was elucidated. This work demonstrates that the Ti 9 O 17 /Ti electrode-based electro-separation represents a robust strategy for treating complex uranium-containing wastewater with coexisting organics, offering significant implications for environmental protection and sustainable uranium resource utilization.
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Applied Sciences-Basel
·
2018
·Vol. 8
·期 12
·
IF 1.689
Xinbo Zhu,Yaolin Wang,Yu Huang,Yuxiang Cai
In this work, a series of Ce-W-Ti catalysts were synthesized using a solution combustion method for the selective catalytic reduction (SCR) of NO with NH3at low temperatures. The reaction performance of NH3-SCR of NO was significantly improved over the Ce-W-Ti catalysts compared to Ce0.4Ti and W0.4Ti catalysts, while Ce0.2W0.2Ti showed the best activity among all the samples. The Ce0.2W0.2Ti catalyst exhibited over 90% removal of NO and 100% N2selectivity in the temperature range of 250–400 °C at a gas hourly space velocity (GHSV) of 120,000 mL·g−1·h−1. The Ce-W-Ti catalysts were characterized using N2adsorption-desorption, X-ray diffraction, X-ray photoelectron spectrometry and temperature programmed desorption of NH3to establish the structure-activity relationships of the Ce-W-Ti catalysts. The excellent catalytic performance of the Ce0.2W0.2Ti catalyst could be associated with the larger specific surface area, highly dispersed Ce and W species, increased amount of surface adsorbed oxygen (Oads) and enhanced total acidity on the catalyst surfaces.
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JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2017
·
IF 3.012
Y.X. Wei,Y.B. Ma,M. Chen,W.M. Liu,L. Li,Y. Yan
Electrochromic devices (ECDs) based on WO 3 and Ti doped V 2 O 5 films are fabricated by using lithium (LiClO 4 ) liquid electrolyte containing ferrocene redox couple . The addition of ferrocene in electrolyte enhances electrochromic properties of device. The device based on LiClO 4 -Ferrocene electrolyte has larger charge density than that based on LiClO 4 electrolyte. In the 600–1500 nm wavelength range, the transmittance of colored device is under 2% and it has faster coloring response. At 680 nm wavelength, it shows larger changes in transmittance from 68% to 1.8% while device based on LiClO 4 electrolyte changes transmittance from 68.3% to 11.5%. The cycling data reveal that device based on LiClO 4 -Ferrocene electrolyte can yield more stable electrochromic properties at 65 °C than room temperature. In order to deeper understand the effect of electrolyte on films and devices, electrochemical impedance spectroscopy (EIS) and the voltage distribution of films based on an analog cell are separately measured and analyzed in LiClO 4 and LiClO 4 -Ferrocene electrolytes. Results indicate that compared with LiClO 4 electrolyte, films have lower charge-transfer resistance and the distributed voltage on Ti doped V 2 O 5 film is larger in LiClO 4 -Ferrocene electrolyte, which can enhance optical properties of ECD by improving charge density of Ti doped V 2 O 5 film.
研究领域:
材料科学
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电化学
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功能材料
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纳米科技
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能源技术
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JOURNAL OF ALLOYS AND COMPOUNDS
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2022
·
IF 6.371
Huicai Xie,Quanyi Liu,Xiaohua Luo,Shengcan Ma,Xinqiang Gao,Zhenxing Li,Zhaojun Mo,Jun Shen
For more practical applications, research on magnetic refrigeration has been gradually focused on developing refrigerants with large magnetocaloric effect (MCE) under low magnetic fields (≤2 T). EuTiO 3 exhibits considerable low-field MCE near ordering temperature, meanwhile the magnetic switch from antiferromagnetic to ferromagnetic (AFM-FM) in it provides the feasibility of improving the magnetocaloric performance. In this study, a series of Eu(Ti,Nb,M)O 3 (M=Cu or Zn) compounds were synthesized, and the crystal structure, magnetic properties together with cryogenic MCEs were investigated in detail. The co-substitution contributes to an FM coupling domination in all the compounds. Besides, significantly enhanced and giant low-field MCEs were detected in these compounds. Under the field change of 1 T, all the samples possess remarkable magnetic entropy change (>15 J·kg -1 ·K -1 ) around 5 K without hysteresis. The corresponding refrigerating capacities are calculated to be 68.0, 72.6, 76.0, and 69.6 J·kg -1 , respectively, exhibiting an increase of 149–178% than EuTiO 3 . The outstanding magnetocaloric performances make the Eu(Ti,Nb,M)O 3 (M=Cu or Zn) compounds competitive candidates for cryogenic magnetic refrigeration.
研究领域:
材料科学
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凝聚态物理
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功能材料
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低温工程
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磁学
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IONICS
·
2026
·
IF 2.6
Yang Hao,Guo Jianling,Xue Juanjuan,Zhang Jingpeng,Liang Guangchuan,Wang Yong
This study successfully prepared high-density LiFePO 4 /C composite materials using a ternary co-doping strategy of Nb 2 O 5 , TiO 2 , and V 2 O 5 , combined with particle size optimization and control techniques. The substitution of Nb⁵⁺ for Li⁺ positions can widen the diffusion channels for Li⁺ and enhance its diffusion kinetics. The replacement of Fe²⁺ by Ti⁴⁺ can stabilize the crystal structure, reduce volume changes during charge-discharge processes, and improve cycling stability. The substitution of Fe²⁺ by V 4⁺ and the introduction of electron defects can increase electronic conductivity. The synergistic co-doping of Nb⁵⁺, Ti⁴⁺, and V 4⁺ increased the electrical conductivity of the LFP material from 2.0 × 10 − 1 to 2.6 × 10 − 1 S cm − 1 and the Li⁺ diffusion coefficient from 7.65 × 10 − 13 to 2.39 × 10 − 12 cm 2 s − 1 . Moreover, by optimizing the particle size distribution and adopting a non-uniform particle grading strategy, small particles can efficiently fill the gaps between large particles, reducing porosity and further increasing the compaction density. The final Li₀.₉₉₀Nb₀.₀₁₀Fe₀.₉₉₀Ti₀.₀₀₅V₀.₀₀₅PO₄ material achieved an industry-leading compaction density of 2.72 g cm − 3 under a pressure of 226 MPa. Electrochemical tests showed that the discharge capacities at 0.2 C and 5 C rates were 166.2 mAh g − 1 and 142.4 mAh g − 1 , respectively, and the capacity retention rate after 1000 cycles at 5 C was 91.34%. The assembled 14,500 cylindrical battery exhibited excellent volumetric energy density (0.2 C: 1166.27 Wh L − 1 , 1 C: 1109.62 Wh L − 1 ). This research provides an effective material design strategy for the development of high-energy-density lithium iron phosphate batteries.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Wei Jiang,Yajun Li,Hongcheng Li,Yuhao Fu,Yi Li,Jian Ren,Qian Li,Limei Pan,Jian Yang
In this work, a unique three-dimensional (3D) network NiFeCoP@Ti₃C₂Tₓ composite, consisting of Co, Fe co-doped Ni 2 P (NiFeCoP) nanosheets anchored on Ti₃C₂Tₓ nanosheets via heterojunction, was situ constructed by phosphidizing the NiFeCo-LDH@Ti₃C₂Tₓ precursor. The 3D network structure establishes a 3D conductive network while generating a built-in electric field at the heterointerface, which efficiently accelerates electron/ion transport and simultaneously improves the structure stability of the electrode. DFT calculations demonstrate that Co doping further optimizes the electronic structure of NiFeCoP, introduces additional active sites, thereby promoting electrochemical reaction kinetics. Meanwhile, the synergistic effect among Ni, Fe, and Co with different redox potentials effectively buffers the volume changes during charge/discharge processes. Consequently, NiFeCoP@Ti₃C₂Tₓ as lithium ion batteries (LIBs) anode shows outstanding electrochemical performance at different current density (950 mAh/g after 340 cycles at 0.5 A/g, 816 mAh/g after 900 cycles at 1 A/g, 541 mAh/g after 1000 cycles at 2 A/g).
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COLLOIDS AND SURFACES B-BIOINTERFACES
·
2026
·
IF 5.9
Peixin Dong,Yangkai Liu,Fulin Deng,Anning Zhao,Min Ren,Linjie Song,Yuanzhen Zhou,Yumeng Dong,Yunjie Xiang,Ugo D‘ Amora,Liqun Xu,Xi Rao
In 2 S 3 forms a Z-scheme heterojunction with TiO 2 , broadening the light response range, improving ROS generation. • Photothermal-photodynamic synergy reduces the required photothermal temperature. • The TiO 2 / In 2 S 3 /Chitosan composite coating exhibits enhanced antibacterial activity. • The composite coating exhibits excellent biocompatibility. Implant-associated bacterial infections remain a major challenge in orthopedic and dental applications, often compromising implant integration and longevity. For this reason, the synergistic antibacterial strategy of photothermal and photocatalysis has become one of the important methods in the field of antibacterial. To synthesize high-efficiency near-infrared (NIR) light-responsive catalysts, a titanium oxide/indium sulfide (TiO 2 /In 2 S 3 ) heterojunction antibacterial coating was prepared on the titanium-based surface using anodic oxidation and wet chemical deposition methods. Compared with titanium alloy, the TiO 2 /In 2 S 3 heterojunction showed a suitable energy band structure, improved light absorption, and enhanced carrier separation capability, thus enhancing photothermal catalytic activity and promoting the production of bacterial reactive oxygen species under NIR light. Indeed, the TiO 2 /In 2 S 3 heterojunction narrowed the bandgap (~2.5 eV) and efficiently generated reactive oxygen species (•O₂⁻ and •OH) under NIR irradiation. Furthermore, the successful deposition of chitosan (CS) endowed the TiO 2 /In 2 S 3 heterojunction with osteogenic activity, promoting the proliferation and differentiation of osteoblasts. In vitro , results demonstrated effective antibacterial performance against Escherichia coli and S taphylococcus. aureus , inhibited biofilm formation, and supported collagen secretion and mineralization. In vivo , NIR irradiation raised the implant site temperature to below 50 °C, enabling safe and efficient sterilization, and showing no organ toxicity. These results highlight CS-coated TiO 2 /In 2 S 3 heterojunction as a promising multifunctional coating that combines infection control with osteogenic support, providing a potential strategy for improving the safety and longevity of titanium-based implants. Download: Download high-res image (156KB) Download: Download full-size image
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2026
·
IF 19.7
Wanyin Xu,Yuanhao Chen,Tianhe Gao,Zihan Wang,Wenkang Miao,Peng Wang,Qianqian Li
Successfully tailored a dual-site architecture comprising Cu + /Ni δ+ -O V -Ti and CuNi NPs on the ultra-small TiO 2 support-derived from MIL-125(Ti). • Deeply revealed the defect rich Cu + /Ni δ+ -O V -Ti site promotes CO 2 adsorption, while the CuNi NPs with electron redistribution facilitates H 2 adsorption and desorption of the product CO. • Significantly enhanced the RWGS reaction activity and sintering-resistance. Copper (Cu)-based catalysts hold promise for the reverse water-gas shift (RWGS) reaction because of their 100% selectivity toward CO. However, their low intrinsic activity, and deactivation caused by irreversible sintering during RWGS reaction remain persistent challenges. Herein, we report a pore adsorption strategy to simultaneously achieve electronic structure modulation and preserve microstructure stability during the RWGS reaction. Specifically, a MOF-derived TiO 2 -supported CuNi catalyst is constructed with dual active sites consisting of Cu + /Ni δ+ -O V -Ti sites and CuNi nanoparticles (NPs). The optimized catalytic performance achieves CO 2 conversion of 37.1% with CO selectivity of 99.9% and operates stably for 200 h at 450 ℃, placing its performance among the advanced Cu-based catalysts reported to date. Atomic/electronic structure characterization and density functional theory calculations demonstrate that Cu + /Ni δ+ -O V -Ti sites with enhanced charge redistribution capability promote CO 2 adsorption. The CuNi NP sites with electronic interaction enhance H 2 adsorption and moderate CO adsorption. This work provides a rational design strategy for highly active, selective and stable Cu-based RWGS catalysts. Download: Download high-res image (286KB) Download: Download full-size image Dual active sites consisting of Cu + /Ni δ+ -O V -Ti sites and CuNi NPs are constructed in the MOF-derived CuNi/TiO 2 catalyst, enabling electronic modulation and structural stabilization for enhanced RWGS reaction.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Zemin Li,Rongbo Li,Benxing Li,Yuqi Zhu,Jiale Lin,Chongqing Wang,Rujing Hou,Yichang Pan
The separation of hexane isomers in petrochemical engineering is energy-intensive, driving the need for membrane-based alternatives to conventional thermal processes. Mixed-matrix membranes (MMMs) offer a material platform by combining the processability of polymer matrices with the high structural tunability of porous fillers. In this work, we fabricate UiO-66-Tix/tPIM-1 MMMs by incorporating Ti-regulated bimetallic Zr/Ti-UiO-66 fillers into a thermally treated polymer of intrinsic microporosity (tPIM-1) matrix. At low Ti contents, the UiO-66-type crystallinity is largely preserved, while Ti introduction produces measurable changes in the pore characteristics and nHex/22DMB adsorption kinetics. Membrane-level sorption measurements show preferential nHex uptake, while adsorption-kinetic analysis and molecular dynamics simulations of both the isolated frameworks and the UiO-66-Ti 0.2 /tPIM-1 composite environment indicate stronger diffusion restriction toward bulky 22DMB than toward linear nHex. Collectively, these results support an adsorption–diffusion transport mechanism for the observed separation behavior. Among the Ti contents and filler loadings investigated, the selected 5 wt% UiO-66-Ti 0.2 /tPIM-1 membrane achieves a flux of 515 g·m −2 ·h −1 and a separation factor of 7.9 for nHex/22DMB separation. The membrane also maintained relatively stable performance during 84 h of continuous operation and preferentially enriched nHex from multicomponent C6 isomer mixtures, showing competitive separation performance among reported MMMs for hexane isomer separation. These results indicate that controlled Ti introduction provides a route to modify the pore characteristics of UiO-66 and improve nHex/22DMB discrimination in thermally treated PIM-1-based MMMs.
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JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Muhammad Nasir Rafiq,Zhonghua Dai,Yuanyuan Zheng,Xujun Li,Chenxi Liu,Xin Zhao,Yu Cong,Shuitao Gu
Lead-based ceramics with high energy storage and electrical capabilities are developed as high-performance materials for pulsed power systems. The (Pb, Cd, La)(Zr, Sn, Ti)O 3 (PCLZST) anti-ferroelectric ceramics attract significant attention as energy storage materials. In this work, ceramics (Pb 0.97- x Cd x La 0.02 )(Zr 0.93 Sn 0.05 Ti 0.02 )O 3 ( x = 0.01, 0.015, 0.02 and 0.025) have been prepared using a solid-state method, and their dielectric and energy storage characteristics are investigated. The results indicate that Cd 2+ doping at the A-site effectively suppresses grain growth, leading to a minimum average grain size of 1.24 μm in PCLZST ceramics. The PCLZST ceramics exhibit orthorhombic phases and high relaxation factors, confirming their excellent antiferroelectric nature. Notably, the energy storage density of PCLZST ceramics is 10.09 J/cm 3 , the recoverable energy storage density is 7.79 J/cm 3 , and the discharge time is 0.102 μs reflecting optimal comprehensive performance. These findings emphasize the efficacy of Cd-doped PLZST ceramics in advanced energy storage and pulse power systems, underscoring their potential to drive future technological advancements.
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