CLAY MINERALS
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2026
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IF 2.1
Sisi Hu,Xiangwei Zhang,Jielong Cao,Qingze Chen,Runliang Zhu
The reduction of volatile organic compounds (VOCs), especially the oxidation of highly toxic and chemically resistant toluene, remains a challenge in environmental catalysis. In this research, a porous TiO2/SiO2 support was initially fabricated through titanium pillaring of montmorillonite and then calcined and acid-leached as an efficient platform for Pt nanoparticle immobilization to yield Pt–TiO2/SiO2. The experimental data showed that the catalyst loaded with 0.37 wt.% Pt (0.37Pt–TiO2/SiO2) exhibits superior toluene oxidation performance, reaching a T90 of 190°C. Moreover, the catalyst exhibited remarkable water resistance, maintaining high efficiency even in the presence of 10% water vapour and outstanding long-term stability, with no substantial deactivation after 48 h of continuous operation. The performance improvement is explained by the high dispersion of Pt nanoparticles on the support and the metal–support interaction between Pt and TiO2, characterized by electron transfer from TiO2 to Pt. This interaction facilitates the adsorption and activation of reactant molecules. In situ diffuse reflectance Fourier-transform infrared spectroscopy explained the catalytic mechanism: toluene is sequentially transformed into benzyl alcohol, benzaldehyde and benzoate intermediates, which are subsequently converted to maleic anhydride by opening the ring and eventually mineralized into CO2 and H2O. This work developed a high-performance, durable catalyst using cost-effective and abundant natural minerals, offering promising prospects for practical abatement of industrial VOCs.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Cong Liu,Qing-shan Wang,Heng-fei Cui,Hao-wen Zhu,Ming-yang Liu,Rui-tang Guo
The highly selective generation of products in the photoelectrocatalytic (PEC) CO 2 reduction reaction is significantly hindered by the complex multi-electron transfer process. In this work, we designed and synthesized a Cu 2 O-Au@TiO 2 composite with a unique “core–shell–satellite” architecture via a facile wet-chemical approach. In this architecture, the Au nanocore strengthens visible-light harvesting through localized surface plasmon resonance (SPR) and injects hot electrons into the mesoporous TiO 2 shell, while the outer Cu 2 O selectively exposes highly active (111) facets and establishes low-mismatch interfaces with TiO 2 . This configuration promotes directional charge migration through virus-like synaptic channels, thereby accelerating multi-electron CO 2 reduction. The cooperative mechanism of SPR enhancement, crystallographic facet matching, and dynamic charge transfer enables efficient and selective conversion of CO 2 to C 2 H 4 . Under visible-light irradiation and applied potential, the optimized composite achieves a remarkable C 2 H 4 yield of 174 ± 3.2 μmol·cm −2 ·h −1 with a sustained current density exceeding 75 mA·cm −2 . These findings highlight a rational structural design that synergistically couples plasmonic excitation with interfacial charge management, establishing a promising paradigm for developing high-performance photoelectrocatalytic systems toward solar-driven CO 2 reduction.
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PubMed
高影响因子
LANGMUIR
·
2026
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IF 4.4
Canlin Zhang,Peng Jin,Ting Wang,Minxuan Chen,Zhengyang Fang,Zenghua Sun,Peng Xia
Abstract For the eco-friendly asphalt pavements with NOx degradation performance, TiO2@CoAl-LDHs were prepared and applied as asphalt modifiers. X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) indicated that TiO2 was uniformly loaded onto the surface of the CoAl-LDHs, and TiO2@CoAl-LDHs have been successfully synthesized. The integration of TiO2 and CoAl-LDHs reduced the energy barrier for electron–hole pair formation upon light irradiation, resulting in the stronger absorbance of TiO2@CoAl-LDHs in both ultraviolet and visible light ranges. After combining TiO2 with CoAl-LDHs, the photogenerated electron transfer and separation efficiency of TiO2@CoAl-LDHs were significantly enhanced, and the recombination of electron–hole pairs was concomitantly suppressed. Compared with TiO2 and CoAl-LDHs, TiO2@CoAl-LDH-modified asphalt exhibited stronger interaction with NOx. Meanwhile, NOx diffused more easily and had a larger penetration proportion in TiO2@CoAl-LDH-modified asphalt. All of these contributed to better NOx photocatalytic degradation capability of TiO2@CoAl-LDH-modified asphalt. This study promotes the development of eco-friendly asphalt pavements.
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CERAMICS INTERNATIONAL
·
2026
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IF 6
Shiyi Wang,Hongdan Wu,Tongshu Chai,Zhihui Zhou,Lu Xia,Rongxue Li,Yuqing Sun
γ-Al 2 O 3 ceramic nanofiltration (NF) membranes are promising for water treatment owing to their excellent thermal and chemical durability; however, their widespread application is restricted by low water permeance, severe membrane fouling, and insufficient stability under acidic conditions. Herein, hydrophilic TiO 2 @Al 2 O 3 NF membranes were fabricated via a controlled sol deposition strategy, in which polyvinyl alcohol (PVA) regulated sol penetration into the porous support to construct a defect-free separation layer with reduced transport resistance. Simultaneously, TiO 2 incorporation into the boehmite-derived network induced the formation of Ti–O–Al linkages, leading to enhanced membrane hydrophilicity and structural integrity. As a result, the optimized membrane exhibited a pure water permeance of 23.71 L m −2 h −1 ·bar −1 , corresponding to a 36.13% increase over the pristine Al 2 O 3 membrane, while maintaining high rejections of 91.50% for MgCl 2 and 88.28% for CaCl 2 via the synergistic effects of size sieving and Donnan exclusion. The membrane sustained MgCl 2 rejection above 90% over 48 h of continuous filtration at pH 4, demonstrating enhanced stability under moderately acidic conditions. Significantly improved antifouling performance was achieved, with approximately 1.6-fold higher flux recovery than the pristine membrane after 8 h of tetracycline fouling tests. The enhanced separation performance is attributed to the synergistic effects of reduced transport resistance, Ti–O–Al-mediated structural reinforcement, and the formation of a stable hydration layer that mitigates foulant adhesion. This work presents an effective strategy for engineering ceramic NF membranes with simultaneously enhanced permeance, antifouling capability, and operational stability under moderately acidic conditions, providing new insights into membrane design for water treatment.
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CERAMICS INTERNATIONAL
·
2026
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IF 6
Xinyi Shan,Weiyi Ju,Qingyao Wang,Qian Zhu,Jiarui Chen,Na Liu,Chenchen Jia,Ran Geng,Junjie Qi,Shengwen Liao
Addressing the escalating contamination of aquatic ecosystems by industrial dyes and heavy metals such as Cr(VI), this study presents a novel TiO 2 NTs/Cu 2 O-CuO hybrid photoelectrocatalytic system. By integrating anodic oxidation with a controlled hydrothermal process, Cu 2 O-CuO dual-phase heterojunctions were successfully anchored onto TiO 2 nanotube arrays, establishing a cascade-like band alignment for efficient charge carrier separation. The characterization confirms that the energy band structure-comprising TiO 2 NTs (3.08 eV), Cu 2 O (2.11 eV), and CuO (1.77 eV)-significantly extends visible-light absorption and suppresses the recombination of photogenerated electron-hole pairs. Under combined visible-light irradiation and external bias, the system exhibits superior photoelectrocatalytic performance, achieving removal efficiencies of 96.92% for Congo red (CR), 74.87% for methylene blue (MB), and 93.64% for Cr(VI). Mechanistic insights reveal that the mineralization of pollutants is dominated by a synergistic pathway involving direct hole (h + ) oxidation and superoxide radicals (•O 2 − ) derived from O 2 reduction. Furthermore, an ecological toxicity assessment using Vigna angularis seedlings demonstrates that this photoelectrocatalytic process effectively detoxifies treated wastewater, promoting plant growth and restoring ecological safety. This work provides both a robust design principle for high-performance heterojunction photoanodes and a critical framework for evaluating the real-world environmental safety of water purification technologies.
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高影响因子
ChemPhotoChem
·
2025
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IF 3
Yuan Bai,Jie Liu,Weiting Huang,Xintong Shen,Haoyu Zheng,Kexin Hu
Graphical Under visible light, a Z-type heterojunction is formed between Ti 3 C 2 /TiO 2 and g-C 3 N 5 to enhance charge separation. Electrons and holes directly or indirectly react with PMS to generate free radicals such as · ,·OH, and 1 O 2 to degrade tetracycline. Photocatalysis-assisted peroxymonosulfate (PMS) activation is a promising technology for the degradation of antibiotics in water remediation. Herein, MXene-derived oxide (TiO 2 ) and g-C 3 N 5 Z-scheme ternary heterojunction photocatalytic composite materials are synthesized using an electrostatic self-assembly approach and characterized. The optimized g-C 3 N 5 /TiO 2 /Ti 3 C 2 (CNTT) heterostructure demonstrates exceptional photocatalytic activity for tetracycline (TC) removal, achieving 90% degradation within 60 min at an optimal g-C 3 N 5 :TiO 2 /Ti 3 C 2 mass ratio of 3:2. Remarkably, the system exhibits broad pH adaptability (80.8–96.3% TC removal across pH 2–12), overcoming the pH sensitivity limitations of traditional PMS-based processes. Mechanistic investigations reveal a synergistic photocatalysis-PMS activation pathway, with quenching experiments confirming , ·OH, · , and 1 O 2 , as dominant reactive species. The CNTT composite maintains 65.2% degradation efficiency after five cycles, demonstrating robust stability. Coexisting ions negatively influence TC removal in the order: H 2 PO 4 − > > Cl − > > . This work establishes the CNTT heterostructure as a promising, environmentally tolerant candidate for efficient pharmaceutical pollutant remediation in complex aqueous matrices.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Mengjia Zhou,Ziyan Cui,Yun Liu,Dan Wang,Yanzhou Li,Junwei Zhao,Wenwu You
In this study, a highly sensitive photoelectrochemical (PEC) immunosensor for the detection of carcinoembryonic antigen (CEA) utilizing core-sheath-type TiO 2 @NH 2 -MIL-125(Ti) nanocone array heterostructures was developed. The immunosensor was constructed by depositing NH 2 -MIL-125(Ti) as a sheath onto FTO/TiO 2 nanocones through seed-assisted solvothermal synthesis. The TiO 2 @NH 2 -MIL-125(Ti) heterostructure showcased superior PEC detection capabilities for CEA, leveraging the quantum and tip effects of the TiO 2 nanocones along with the broad-spectrum absorption of NH 2 -MIL-125(Ti), which collectively enhanced light utilization and photoelectric conversion efficiency. The internal electric field at the NH 2 -MIL-125(Ti)/TiO 2 interface enabled efficient photogenerated electron transfer, eliminating the need for external bias and enhancing photocurrent. The antibody-functionalized surface effectively captured CEA, resulting in a clear decrease in photocurrent. Under optimized conditions, the immunosensor exhibited a linear response to CEA in the range of 0.1 pg/mL to 100 ng/mL with a remarkable detection limit of 0.54 fg/mL. The developed PEC immunosensor demonstrated high stability and excellent reproducibility, providing an innovative strategy for the development of sensitive photoactive heterojunction materials for biomarker immunosensing applications.
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高影响因子
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
·
2025
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IF 7.8
Bohan Zhang,Chang Wen,Mingtao Xu,Zhaoxi Ye,Wenshang Chen,Ben Chen,Qingsong Hua,Ke Liu,Zhengkai Tu
Proton exchange membrane water electrolysis (PEMWE) is a promising technology for sustainable hydrogen production, nevertheless it faces challenges related to the high cost and scarcity of noble metal-based anodic catalysts. Herein, we report a low-cost, high-performance acidic oxygen evolution electrocatalyst, Cr 0.66 Ru 0.34 O 2 /TiO 2 , consisting of chromium-ruthenium mixed oxides supported on a TiO 2 substrate. The catalyst was synthesized through sol-gel and hydrothermal methods, enabling controlled crystallinity and uniform dispersion. By tuning the Cr/Ru ratio, we elucidated the synergistic interaction between Cr and Ru, which modulates the electronic structure and morphological characteristics of the catalyst, thereby promoting the lattice oxygen mechanism (LOM) and enhancing catalytic activity. TiO 2 was employed as a support due to its high specific surface area and excellent chemical stability under acidic conditions, which helps stabilize oxygen vacancies and facilitates the oxygen vacancy site mechanism (OVSM), ultimately improving the catalytic stability. The optimized Cr 0.66 Ru 0.34 O 2 /TiO 2 catalyst delivers a low overpotential of 179 mV at 10 mA cm −2 in 0.5 M H 2 SO 4 and demonstrates excellent stability under constant current operation. When applied in a PEM single-cell electrolyzer, the catalyst achieves a low cell voltage of 1.633 V at 1 A cm −2 and stable operation over 180 h at 60 °C, outperforming commercial IrO 2 . These results highlight the potential of Cr-doped Ru-based oxides supported on TiO 2 as efficient and durable anode catalysts for next-generation PEM water electrolyzers with reduced noble metal usage.
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高影响因子
TALANTA
·
2025
·
IF 6.1
Mingxia Wang,Minggang Wei,Sirui Liu,Xidian Yue,Li Wang,Feng Luan,Xuming Zhuang,Chunyuan Tian
Urokinase (UK), an enzymatic protein predominantly isolated from the urine of healthy humans , serves as a crucial biomarker for evaluating human renal function , cardiovascular diseases, and inflammatory states. In this study, a novel sandwich - type ratiometric electrochemiluminescence (ECL) biosensor was constructed to achieve accurate and sensitive detection of UK. This biosensor was constructed with titanium dioxide magnetic beads (P25) as the cathode luminophore and a terbium monophosphate - guanosine infinite coordination polymer network (Tb - GMP ICPn) encapsulating tris(4,4' - dicarboxylic acid - 2,2' - bipyridyl) ruthenium dichloride (Ru(dcbpy) 3 2+ /ICPn) as the anode luminophore. Under optimized experimental conditions, when potassium persulfate (K 2 S 2 O 8 ) and tri - n - propylamine (TPA) were separately utilized as co - reactants, a favorable linear correlation was observed between the variations in ECL intensities and the concentration of UK within the range of 10 −2 to 10 4 ng mL −1 . The limits of detection (LODs) were determined to be 7.2 and 5.8 pg mL −1 , respectively. Moreover, the application of this biosensor for the detection of UK in real - world samples yielded satisfactory results. These findings suggest that the developed ratiometric ECL biosensor holds significant promise in the realm of clinical detection and diagnosis.
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PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Boyu Liu,Tengfei Wang,Qing Pang,Jun Yang,Haidong Liu,Hongyu Wang
To improve the energy density of s ingle-crystal LiNi 0.5 Co 0.2 Mn 0.3 O 2 (NMC523) by increasing the charging cut-off voltage presents a big challenge since the material degrades significantly at high voltage (>4.3V). A simple method to enhance the high-voltage electrochemical properties of single-crystal NMC523 was proposed by introducing a mesoporous TiO 2 coating and Ti doping. The specific discharge capacity for the modified NCM523-M-TiO 2 -0.5 sample achieves 182.81 mAh g −1 at a 0.1 C rate within the 3.0–4.5 V range. Furthermore, the capacity retention rate was 80.69 % after 200 cycles at a charge/discharge rate of 1 C, significantly higher than that of bare NCM523, which exhibited values of 181.36 mAh g −1 and 46.40 %. In detail, the mesoporous TiO 2 coating shields the cathode from the electrolyte, enhancing the stability at the interface and promoting the movement of lithium ions. Additionally, Ti doping increases lattice spacing and stabilizes the layered structure. This research will inform the design of high-performance cathode materials for Li-ion batteries.
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高影响因子
Journal of Energy Storage
·
2025
·
IF 9.8
Guanzheng Wang,Xiaoli Zhan,Wenjiang He,Wenshen Tang,Zhentao Yuan,Lu Li,Xiao Wang,Zhaolin Zhan
Titania (TiO 2 ) is widely recognized as an intercalation-type anode material with favorable parameters of low cost, abundant reserves, high safety, and long life. However, electrode kinetics within TiO 2 is limited, resulting in a theoretical capacity below 335 mAh g −1 . Here, CoTiO 3 was fused with anatase (A)/rutile (R) biphasic TiO 2 to construct multi-scale hybrid CoTiO 3 /A/R-TiO 2 –2 hollow microspheres with a TiO 2 content of about 90 % in this work. The average particle size of the CoTiO 3 /A/R-TiO 2 –2 anode was about 1.97 μm, with a high specific surface area of 76.67 m 2 g −1 , a pore volume of 0.16 cm 3 g −1 , and a large pore size of 8.55 nm. When deployed as an anode in a lithium-ion battery, it provided a high reversible specific capacity of 455 mAh g −1 after 500 cycles at 0.5C. After repeated charge/discharge cycles, a solid electrolyte interphase (SEI) film rich in conducting LiF was formed on the surface of the electrode. Therefore, the high capacity of the anode was mainly attributed to the stable multi-scale hybrid CoTiO 3 /A/R-TiO 2 hollow microspheres and the thin, uniform SEI film. This strategy provided a viable solution for the design of long-life, high-capacity conventional oxide semiconductor anodes.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
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IF 6.3
Qian Wang,Hanyu Shi,Sihan Fang,Chengchen Wang,Jiming Zeng,Guobin Yang,Jun Li,Giuseppe Mele,Chen Wang
Photocatalytic technology, as an environmentally friendly and sustainable approach for hydrogen production, demonstrates significant market potential，where bimetallic single-atom catalysts (SACs) demonstrate superior performance compared to monometallic counterparts through heteronuclear synergistic effects, establishing them as a critical research focus in modern catalytic science. In this investigation, TiO₂ nanosheets were employed as catalytic supports, with oxygen vacancy defects being strategically introduced via H₂-Ar atmosphere thermal reduction to immobilize both monometallic Pt and bimetallic Pt-Pd single atoms. The hydrogen evolution rates were quantified as 1956.45 μmol·h⁻¹ ·g cat ⁻¹ for Pt-loaded catalysts and 3522.65 μmol·h⁻¹ ·g cat ⁻¹ for Pt-Pd-loaded systems, corresponding to 72.3-fold and 130.2-fold improvements relative to unmodified TiO₂. This performance enhancement is attributed to optimized charge carrier separation facilitated by oxygen vacancies and the complementary electronic interactions between Pt and Pd atoms in bimetallic configurations, which collectively promote efficient surface reactions and hydrogen generation kinetics. The remarkable advantages of bimetallic systems in photocatalytic hydrogen evolution are demonstrated through these findings, with Density Functional Theory (DFT) revealing that Pd incorporation not only modulates charge density and band structure through its role as a cocatalyst but also actively participates in the hydrogen evolution reaction as catalytic sites. The formation of Ti-Pt-Ti and Ti-Pd-Ti configurations is observed to effectively reduce reaction energy barriers while suppressing competitive adsorption at isolated metal sites, resulting in enhanced catalytic performance. A strategy for designing efficient photocatalysts is established through this work, supported by mechanistic insights into energy barrier reduction and adsorption regulation, which provides critical theoretical foundations with both scientific and practical significance.
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高影响因子
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