MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Hanlin Xu,Bochi Pan,Yi Xing,Zhaoxiang Zhong,Leilei Shu,Min Zhang,Faliang Cheng
A novel molecularly imprinted photoelectrochemical sensor based on CdS QDs /Ov-TNTs was fabricated. • CdS QDs and Ov-TNTs cooperatively achieved the spatial separation of electron-hole pairs. • The sensor offered a wide linear range from 0.1 to 100 ng mL −1 and a low detection limit of 0.03 ng mL −1 . The excessive use of tetracycline hydrochloride (TCH) poses a threat to ecological integrity and public health. This urgency necessitates the development of sensitive, accurate, and rapid sensing technologies for TCH detection. Herein, we developed a novel molecularly imprinted photoelectrochemical sensor based on CdS and oxygen vacancy-regulated TiO 2 nanotube arrays (Ov-TNTs). The introduction of oxygen vacancies broadens the light absorption range of TiO 2 and facilitates the effective separation of photogenerated electron-hole pairs. Additionally, the decoration with narrow-bandgap CdS QDs (2.4 eV) further enhances the visible-light harvesting capability of the sensor. Furthermore, a molecularly imprinted polymer (MIP) film with specific recognition capability, which offers the advantages of facile preparation, time efficiency, and low cost, was introduced onto the sensing platform to further optimize its performance and significantly enhance the sensor's selectivity and anti-interference ability. The proposed sensor exhibited excellent analytical performance for TCH detection, offering a wide linear range from 0.1 nM to 0.1 μM and a low detection limit of 0.032 nM (S/N = 3). This strategy provides a universal platform for detecting other antibiotics through the replacement of molecularly imprinted films in aquatic environments. Download: Download high-res image (111KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES B-BIOINTERFACES
·
2026
·
IF 5.9
Qian Tang,Wen-Li Luo,An-Ni Guo,Yuan Chen,Zhen-Hua Liu,Jing-Wei Shao
Nanozyme heterostructures with extended light absorption into the visible region. • Chlorogenic acid-loaded microneedles enable bidirectional ROS regulation. • Dynamic redox homeostasis promotes M2 polarization and angiogenesis. • The microneedle platform enables synergistic antibacterial and wound-healing therapy. Burn wounds infected with Staphylococcus aureus (S. aureus) are often characterized by excessive early inflammation, which leads to persistent oxidative stress, pain, and delayed healing. To overcome the limitations of conventional photosensitizers, which may induce reactive oxygen species (ROS) overload and subsequent tissue damage, we developed a ROS-responsive microneedle patch (TC@MN). This system consists of chlorogenic acid–based microneedles encapsulating a CuₓO–TiO 2-X (TC) nanozyme heterostructure designed for synergistic antibacterial and regenerative therapy. TC@MN exhibits intrinsic peroxidase-like (POD) and catalase-like activities (CAT). Under light irradiation, these catalytic processes participate in ROS regulation and promote Cu²⁺/Cu⁺ redox cycling, leading to the generation of bactericidal •OH and •O₂⁻ radicals while simultaneously producing O₂ to alleviate local hypoxia. In animal experiments, TC@MN scavenges excess ROS and promotes macrophage polarization toward the M2 phenotype thereby facilitating inflammation resolution and tissue repair under light-free conditions. Collectively, this light/dark dual-mode microneedle platform integrates photocatalytic and enzyme-mimetic functions, offering a biocompatible and intelligent strategy for the treatment of infected burn wounds.
✓ 已验证
DOI
PubMed
高影响因子
Surface Science and Technology
·
2026
·Vol. 4
·期 1
·29
·
IF 7
Huang Shuang,Yu Zhiyun,Mao Ronghui,Huang Du,Wei Xuanchen,Liang Tianquan
This work investigates the growing behavior of reaction layers on TiO 2 -doped Al 2 O 3 ceramics in molten CMAS at 1250 °C. Initial reactions rapidly form Ca 2 MgSi 2 O 7 and CaAl 2 Si 2 O 8 phases. A thin-dense CaAl 2 Si 2 O 8 reaction layer (DRL) forms within 15 min, evolving into a double-layered structure (outer CaAl 2 Si 2 O 8 / inner MgAl 2 O 4 ) after 4 h. The reaction layer thickening follows the parabolic law, with a rate that decreases significantly after 4 h as the DRL plays a positive role in inhibiting the diffusion of Si 4+ , Al 3+ , and less effect on the, Mg 2+ and Ca 2+ . Crucially, the study elucidates the mechanism by which TiO 2 modulates the growing kinetics: TiO 2 enhances the chemical driving force for Ca 2+ infiltration through the DRL. This accelerated diffusion leads to the precipitation of a CaTiO 3 zone beneath the DRL, which alters the local compositional gradients and sustains the reaction layer growth. Kinetic models describing the layer thickness over time were established, and the underlying corrosion mechanisms were analyzed.
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Yueyang Li,Jingde Luan,Haibin Yan,Yu Zhang,Qingyu Chi,Wengang Liu,Jian Liu,Zheng Yan
Integrating dual functional sites in the crystal lattice is a promising strategy to fabricate novel hetero nuclear-hetero polar dual-atom catalyst. However, the synergy between the dual active sites is governed by the local coordination environment, shaped by doping configuration of hetero atoms in the crystal lattice. Herein, engineering cobalt–iodine dual-site on anatase-TiO2 (Co-I-a-TiO2) was conducted by coupling in-situ cross-linking-assisted hydrothermal synthesis with electrostatic self-assembly. The optimal Co-I-a-TiO2 exhibits a H2 production rate of 20.8 mmol g−1 h−1, approximately 8.32 fold higher than that of pristine a-TiO2. Experimental and theoretical analysis reveal that the Co3+-for-Ti4+ substitution and vacancy-doped I ions in the lattice alter the electron density distribution, establishing a built-in electric field oriented from bulk to surface in the near-surface region. This redistribution empowers Co atom to function as an electron-rich center and I atom as a proton-trapping site. These findings emphasize the importance of constructing asymmetric coordination via anion-cation dual-site modification to promote photogenerated charge separation, as well as the enhanced probability of electron-proton binding.
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Feng Long,Shiyu Wu,Yuwei Chen,Xincheng Cao,Jiaping Zhao,Peng Liu,Jianchun Jiang,Xiaolei Zhang,Junming Xu
Catalytic transformation of fatty acids into fatty alcohols is the essential step to produce renewable energy and high-valuable chemicals from waste fatty acids. In this research, a series of Ni 3 Fe catalysts were synthesized to improve this transformation, specifically that the Ni 3 Fe anchored on TiO 2 surface has performed excellent activity with a high alcohol yield reaching 91.2%. The structure–reactivity relationship between the Ni 3 Fe nanoparticles on different crystal types of TiO 2 (anatase: A-TiO 2 , rutile: R-TiO 2 ) was investigated. It was found that the as-prepared Ni 3 Fe/R-TiO 2 catalyst showed better catalytic performance than that of Ni 3 Fe/A-TiO 2 . Both experimental and density functional theory (DFT) computational results indicated that the interactions between Ni 3 Fe nanoparticles and R-TiO 2 support have highly promoted the formation of oxygen vacancy (O v ), which plays an essential role in C O and H H cleavage, thus promoting the hydrogenation towards fatty alcohols. Furthermore, the catalyst reusability tests showed that Ni 3 Fe/TiO 2 catalyst exhibited good stability over four times recycled and excellent suitability for industrial crude fatty acid conversion.
✓ 已验证
产品关联
DOI
高影响因子
Nanoscale
·
2023
·Vol. 15
·期 12
·5909-5918
·
IF 6.7
Wenjie Wu,Saiyu Bu,Liang Bai,Yuanting Su,Yenan Song,Haitao Sun,Guangyin Zhen,Ke Dong,Lunhua Deng,Qinghong Yuan,Chengbin Jing,Zhuo Sun
Non-thermal plasma (NTP) degradation of volatile organic compounds (VOCs) into CO2 and H2O is a promising strategy for addressing ever-growing environment pollution. However, its practical implementation is hindered by low conversion efficiency and emissions of noxious by-products. Herein, an advanced low-oxygen-pressure calcination process is developed to fine-tune the oxygen vacancy concentration of MOF-derived TiO2 nanocrystals. Vo-poor and Vo-rich TiO2 catalysts were placed in the back of an NTP reactor to convert harmful ozone molecules into ROS that decompose VOCs via heterogeneous catalytic ozonation processes. The results indicate that Vo-TiO2-5/NTP with the highest Vo concentration exhibited superior catalytic activity in the degradation of toluene compared to NTP-only and TiO2/NTP, achieving a maximum 96% elimination efficiency and 76% COx selectivity at an SIE of 540 J L−1. Mechanistic analysis reveals that the 1O2, ˙O2− and ˙OH species derived from the activation of O3 molecules on Vo sites contribute to the decomposition of toluene over the Vo-rich TiO2 surface. With the aid of advanced characterization and density functional theory calculations, the roles of oxygen vacancies in manipulating the synergistic capability of post-NTP systems were explored, and were attributed to increased O3 adsorption ability and enhanced charge transfer dynamics. This work presents novel insights into the design of high-efficiency NTP catalysts structured with active Vo sites.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2023
·
IF 10.9
Yiwu Pan,Xiangyu Jin,Hebing Wang,He Huang,Can Wu,Xiaojie Yan,Changqing Hong,Xinghong Zhang
High-performance thermal protection materials (TPMs) for spacecraft are becoming current research hotspots. Lightweight polymer-based ablators are considered to be the most promising candidates for TPMs due to their excellent designability and versatility. In this study, a unique nano-TiO 2 coated needled carbon fiber felt/phenolic resin aerogel composite (TiCF/PR) is reported. Wherein the anatase nano-TiO 2 was in-situ coated on the surface of carbon fibers uniformly through the sol-gel and calcination method, then, the phenolic resin aerogel was in-situ synthesized in the nano-TiO 2 coated needled carbon fiber felt (TiCF) preform through vacuum impregnation and solvothermal method. The as-prepared aerogel composite possesses a low density (0.30–0.32 g/cm 3 ), low thermal conductivity (0.034 and 0.312 W/(m K) in the z and xy directions), and excellent thermal stability with 13.86% residual weight at 1300 °C in air. It is worthwhile to note that the TiCF/PR composite exhibits excellent antioxidant ablation and infrared (IR) radiation shielding properties in a high-temperature heating environment. With an oxygen-acetylene blaze heating of 1.5 MW/m 2 for 150 s, the linear ablation rates decreased by 13.4%, and the backside temperature reduced from 322.3 to 179.1 °C compared to that of the sample without nano-TiO 2 coating. The experimental and theoretical analysis showed that the present TiCF/PR nanocomposite has competitive and potential application prospects in the field of future TPMs.
✓ 已验证
产品关联
DOI
高影响因子
ChemNanoMat
·
2023
·Vol. 9
·期 5
·e202300051
·
IF 3.8
Qiankun Xu,Yaru Li,Wen Ji,Jun Mei,Xianbiao Wang
Graphical TiO 2 hollow sphere/UiO-66-NH 2 heterostructures were successfully synthesized by an adsorption-induced in-situ solvothermal growth strategy. The integration of TiO 2 and UiO-66-NH 2 could construct a type-II heterojunction to broaden the absorption range of light and suppress the recombination of photoproduced electrons and holes, thus boosting the photoreduction activity toward Cr(VI) of TiO 2 /UiO-66-NH 2 . Water contamination caused by highly toxic Cr(VI) should be resolved imminently with a more efficient photocatalytic approach. The interaction between photocatalyst heterostructure is critical for charge separation which largely affects the photocatalytic efficiency. Herein, TiO 2 hollow sphere/UiO-66-NH 2 (TiO 2 /UiO-66-NH 2 ) heterostructures were successfully synthesized by an adsorption-induced in-situ solvothermal growth strategy. The UiO-66-NH 2 particles were well dispersed on TiO 2 hollow spheres by solvothermal treatment of Zr 4+ adsorbed TiO 2 hollow spheres with NH 2 -BDC ligand. The photocatalytic activities of TiO 2 /UiO-66-NH 2 heterostructures were investigated by reduction of Cr(VI) with visible light irradiation. With the introduction of UiO-66-NH 2 , the reduction efficiency toward Cr(VI) by TiO 2 /UiO-66-NH 2 heterostructures reached 89% after 180 min of irradiation, which is much higher than those of TiO 2 hollow spheres (10%) and UiO-66-NH 2 crystals (29%). Moreover, the TiO 2 /UiO-66-NH 2 heterostructures display good regeneration ability and can still maintain 70% of Cr(VI) removal ability after four cycles. The integration of TiO 2 and UiO-66-NH 2 could construct a type-II heterojunction to broaden the absorption range of light and suppress the recombination of photoproduced electrons and holes. As a result, such unique composite structure significantly enhance the photocatalytic performance towards Cr(VI) reduction. This work not only inspires a new approach for in-situ solvothermal synthesis of semiconductor@MOFs composites, but provides a novel photocatalyst for highly efficient removal of Cr(VI) from wastewater.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Sciences
·
2023
·
IF 6.9
Hualong Wu,Yanxia Zhao,Jiexi Wang,Xiaoyan Li,Kaimin Shih,Xuguang Li,Wei Liu
Resource recycling from waste-water and sludge is an important part of the 14th Five-Year Plan in China. The emerging titanium-based coagulants have drawn growing attentions due to their strong coagulation capability in water purification and value-added Ti-loaded sludge production. Management and recovery of the high value-added sludge into functional nanomaterials is highly significant for both sludge reduction and environmental remediation. The present study was carried out to investigate the recycle of the coagulated Ti-loaded sludge to produce functional C/TiO 2 composites as the anode materials for lithium-ion batteries (LIBs). It is the first time that the application of the Ti-loaded wastewater sludge derived C/TiO 2 was evaluated for LIBs. The experimental results showed that the carbon coating through in-situ carbonization of the sludge produced the C/TiO 2 composites with a high specific surface area, stable structural integrity, and excellent electrochemical properties that would facilitate Li + diffusion in long-term LIBs usage. The C/TiO 2 composites calcinated from the polytitanium sulfate-coagulated sludge at 800°C (N 2 ) exhibited the best electrochemical performance during the cycling tests (601 mAh/g at 100 mA/g after 200 cycles). The research work demonstrates the promising prospect of the recycle and value-added utilization of the Ti-loaded sludge in the production of high-performance C/TiO 2 composites for energy storage applications. This study provides a new way for the management and reuse of Ti-loaded waste-sludge.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMOSPHERE
·
2023
·
IF 8.8
Daying Chen,Lin Zhao,Danning Chen,Pengfei Hou,Jiashu Liu,Chuanbin Wang,Moses Akintayo Aborisade,Meilin Yin,Yongkui Yang
Efficient, stable, and easily producible electrodes are useful for treating dye wastewater through electrochemical oxidation . In this study, an Sb-doped SnO 2 electrode with TiO 2 nanotubes as the middle layer (TiO 2 -NTs/SnO 2 –Sb) was prepared through an optimized electrodeposition process. Analyses of the coating morphology, crystal structure, chemical state, and electrochemical properties revealed that tightly packed TiO 2 clusters provided a larger surface area and more contact points, which is conducive to reinforcing the binding of SnO 2 –Sb coatings. Compared with a Ti/SnO 2 –Sb electrode without a TiO 2 -NT interlayer, the catalytic activity and stability of the TiO 2 -NTs/SnO 2 –Sb electrode significantly improved ( P < 0.05), as reflected by the 21.8% increase in the amaranth dye decolorization efficiency and 200% increase in the service life. The effects of current density, pH, electrolyte concentration, initial amaranth concentration, and the interaction between various combinations of parameters on the electrolysis performance were investigated. Based on response surface optimization, the maximum decolorization efficiency of the amaranth dye could reach 96.2% within 120 min under the following set of optimized parameter values: 50 mg L −1 amaranth concentration, 20 mA cm −2 current density, and 5.0 pH. A potential degradation mechanism of the amaranth dye was proposed based on the experimental results of a quenching test, ultraviolet–visible spectroscopy, and high-performance liquid chromatography-mass spectrometry. This study provides a more sustainable method for fabricating SnO 2 –Sb electrodes with TiO 2 -NT interlayers to treat refractory dye wastewater.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2023
·Vol. 47
·期 17
·8170-8181
·
IF 3.3
Shuanghui Liu,Changle Wang,Yao Song,Binglin Yan,Bing Ai,Kefeng Pan,Lipeng Zhang
The heterojunction structure of semiconductor photocatalysts is significant for making full use of their capabilities for organic molecules and dye degradation. In this paper, we present a heterogeneous junction composite fabricated with hybrid phase TiO2 and g-C3N4 for methylene blue (MB) removal through adsorption and photocatalytic degradation. The heterogeneous junction system was prepared by hydrothermal treatment with a subsequent pyrolysis process. The variation of the proportion and lattice structure of hybrid phase TiO2 in the synthesized catalysts was analyzed by refinement. Adsorption experiments showed that the maximum adsorption capacity of TiO2/g-C3N4 (1 : 10) was 1667 mg g−1, which was 45.97 times and 63.78 times higher than that of TiO2 and g-C3N4, respectively. In the photodegradation process, the TiO2/g-C3N4 (1 : 10) photocatalyst shows a removal rate of MB of 100 mg L−1, which was as high as 96.262%, significantly higher than that of pure TiO2 and g-C3N4. Brunner–Emmett–Teller (BET) measurements and Fourier transform infrared spectroscopy (FTIR) showed that the adsorption of MB onto TiO2/g-C3N4(1 : 10) was chemical adsorption, and ˙OH, which acts as an active substance, was found to play a major role in the photocatalytic degradation process. Overall, the developed hybrid phase TiO2/g-C3N4 heterojunction composite may be beneficial for the treatment of water pollution.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Wenxuan Wang,Yanwei Zhang,Jingjing Xie,Yanze Wang,Shaowen Cao,Hang Ping,Zhaoyong Zou,Hui Zeng,Weimin Wang,Zhengyi Fu
Natural photosynthesis involves an efficient charge-transfer pathway through exquisitely arranged photosystems and electron transport intermediates, which separate photogenerated carriers to realize high quantum efficiency. It inspires a rational design construction of artificial photosynthesis systems and the architectures of semiconductors are essential to achieve optimal performance. Of note, biomineralization processes could form various mesocrystals with well-ordered superstructures for unique optical applications. Inspired by both natural photosynthesis and biomineralization, we construct a ternary superstructure-based mesocrystal TiO2 (meso-TiO2)/Au/CdS artificial photosynthesis system by a green photo-assisted method. The well-ordered superstructure of meso-TiO2 and efficient charge-transfer pathway among the three components are crucial for retarding charge recombination. As a result, the meso-TiO2/Au/CdS photocatalyst displays enhanced visible light-driven photocatalytic hydrogen evolution (4.60 mmol h–1 g–1), which is 3.2 times higher than that of commercial TiO2 (P25)/Au/CdS with disordered TiO2 nanocrystal aggregates (1.41 mmol h–1 g–1). This work provides a promising bioinspired design strategy for photocatalysts with an improved solar conversion efficiency.
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）