COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Rongxue Xi,Chenshun Hu,Shouzheng Jiao,Yuwei Hao,Zhicheng Sun,Zhongjun Cheng
Efficient treatment of water-in-oil emulsions remains challenging, primarily due to surfactant-induced droplet stabilization and rapid membrane fouling that causes pore blockage and flux decay. In this study, we develop a light-responsive liquid-like separation surface by grafting linear polydimethylsiloxane (PDMS) chains onto TiO₂-modified stainless steel mesh. The grafted PDMS brush forms a mobile, low-adhesion interface that promotes droplet detachment and suppresses organic deposition, while the TiO₂ nanoparticles generate reactive oxidative species under UV irradiation to degrade residual contaminants. This dual-action design enables continuous gravity-driven separation of immiscible oil/water mixtures and surfactant-stabilized emulsions. The membrane maintains superoleophilicity in air and strong water repellency in oil, ensuring selective transport of the oil phase. Critically, UV illumination rapidly restores flux after fouling, and the separation efficiency remains above 85 % over repeated cycles. The synergistic integration of dynamic PDMS brush and photocatalytic self-cleaning presents a simple and scalable route for developing durable antifouling interfaces for long-term emulsion purification and potentially broader waste-oil treatment applications.
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JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2020
·
IF 3.807
Jinghui Zhu,Ya Liu,Liubiao Zhong,Jianyong Wang,Huanhui Chen,Sanfei Zhao,Yejun Qiu
Herein, a novel composite nanofiber , which consists of TiO-TiO 2 heterostructure nanoparticles and boron, nitrogen co-doped carbon nanofibers (BNCNF), has been successfully prepared through a facile electrospinning method. Remarkably, as interlayer for Li S batteries, the TiO-TiO 2 heterostructure not only enhances the adsorbability of the interlayer to lithium polysulfides (LiPSs) via the Lewis acid-base interactions, but also accelerates the redox reaction kinetics of the Li S batteries dramatically. Moreover, the BNCNF as a flexible framework can remit the volumetric change of the sulfur cathode, physically retard the migration of LiPSs and chemically adsorb to the LiPSs. Attributing to the synergistic effect of TiO-TiO 2 nanoparticle and BNCNF membrane, the Li S batteries with the novel composite interlayer (named as TiO-TiO 2 /BNCNF) exhibit outstanding cycling stability and high discharge capacity, especially at high current density. With the sulfur loading of 2.5 mg cm −2 , the cell with the TiO-TiO 2 /BNCNF interlayer delivers a high initial discharge capacity of 1014.7 mA h g −1 with a decay rate of 0.092% over 400 cycles at 0.5C, and also possesses excellent initial discharge capacity of 650.0 mA h g −1 with a decay rate of 0.068% over 120 cycles even at 2.0C.
研究领域:
材料科学
·
能源存储
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高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2018
·
IF 6.434
Lei He,Yanan Dong,Yane Zheng,Qingming Jia,Shaoyun Shan,Yaqin Zhang
A novel magnetic MIL-101(Fe)/TiO 2 composite was synthesized for photo degradation of tetracycline (TC) under solar light. The composite was characterized by XRD, TGA, SEM, TEM, EDS, BET, FTIR, XPS, VSM, ESR, and PL. The resultant composite was environment friendly material, which exhibited high TC degradation efficiency and excellent reusability. In the meantime, it could be separated easily from TC solution by using magnet, which would save significant time and cost of preparation and degradation, having broad prospect in application. Using 1 g L −1 magnetic MIL-101(Fe)/TiO 2 at pH = 7, 92.76% degradation efficiency was achieved under solar light irradiation in 10 min for 20 mg L −1 TC. Further experiments indicated that TiO 2 introduced in the composite played an important role in the degradation process, which could be activated by the UV light in solar light to generate large amount of O 2 − and OH radicals. The degradation efficiency of TC in this paper was significantly higher than other research papers reported in last three years. This study put forward new magnetic Fe-based metal-organic frameworks (MOFs)/TiO 2 composite for degrading pharmaceutical wastewater.
研究领域:
环境科学
·
材料化学
·
光催化
·
水处理
·
纳米材料
·
药物降解
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高影响因子
NEW JOURNAL OF CHEMISTRY
·
2025
·
IF 2.5
Wenxin Yang,Dongxue Han,Zhonghui Sun,Zhishan Liang,ziqian He
Ascorbic acid (AA) is a very common and important antioxidant, widely present in various daily foods, and more importantly, it is an indispensable vitamin in the human body. In this study, a 980 nm near-infrared (NIR)-driven Ti₂O₃-TiO₂-based photoelectrochemical (PEC) sensor was developed for the selective and sensitive detection of AA. Upon 980 nm irradiation, a heterojunction is established between the tetravalent (Ti⁴⁺) and trivalent (Ti⁺) titanium oxides in the Ti₂O₃-TiO₂ photoactive semiconductor. This heterojunction enhances the separation of photogenerated electron-hole pairs and accelerates electron transport. Due to its low redox potential, AA can reduce Ti⁴⁺ to Ti3+, leading to a reversal in the direction of photogenerated electron flow within the semiconductor. The material changes from an n-type semiconductor to a p-type semiconductor, resulting in the phenomenon of photocurrent polarity reversal in PEC only in the presence of AA. At the same time, the sensor has a wide detection range of 1 - 302 μM for AA and the detection limit is 0.43 μM. All of these make it possible to use it for the detection of AA content in real rat cerebrospinal fluid and human plasma, with high recovery rates and low relative standard deviations. This approach holds great potential as an accurate and convenient method for medical detection of AA levels in the human body.
研究领域:
生物医学工程
·
分析化学
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高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2021
·
IF 8.067
Xiangchen Kong,Huiming Huang,Zhaoyang Li,Yanqin Liang,Zhenguo Li,Shengli Zhu
TiO 2 (B) nanosheets/GO (graphene oxide) hybrids are considered to be outstanding performance photocatalysts for high efficiency of H 2 evolution. However, they still suffer severe challenges during the synthetic processes, such as a large amount of the capping agents adhering on the surface and easy occurrence of aggregation. To figure out these obstacles, Ar plasma treatment as a modified method in this study not only enable the TiO 2 (B) nanosheets distributed uniformly on the GO sheets but also engineer defects within TiO 2 (B) nanosheets to significantly improve the photocatalytic activity for the water splitting. The hydrogen evolution rate of the TiO 2- x (B)/GO sheets is 1.4 times higher compared with that of original TiO 2 (B)/GO sheets without Ar plasma treatment. The improved photocatalytic properties were owing to the synergetic effects of oxygen vacancies and the heterojunction between GO and TiO 2 (B), which can promote the visible light utilization and accelerate separation and transportation of photogenerated electron-holes. This study can provide a facile pathway to prepare the two-dimensional hybrid photocatalysts with high photocatalytic H 2 activity.
研究领域:
材料科学
·
纳米科技
·
能源化学
·
光催化
·
二维材料
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DOI
高影响因子
FIBRES & TEXTILES IN EASTERN EUROPE
·
2022
·Vol. 30
·期 5
·53-59
·
IF 1.104
Yu-xin Wen,Li-hong Bao,Jia-wen Ling,Guan-Fanglan,Zhang Mei,Nie-Jinmei
In this paper, a dye modified titanium dioxide/graphene composite (DTG20) was prepared using direct grey D, a dye with good water solubility, as a modifier. Then the DTG20 and its intermediates, including TiO2 and titanium dioxide/graphene (TG), were finished on cotton fabric through the padding, coating and compounding methods, respectively. Photocatalytic properties of the treated fabrics were investigated using the MB simulated pollutant. It was found that the photodegradation efficiency of MB shown by DTG20 finished fabric treated with the compounding method can reach 90.55 %, and after four recycling experiments, the removal rate of MB can still reach 77.07 %. After being exposed to sunlight for 6 hours, the photodegradation efficiency of MB stained on the surface of DTG20 treated fabric can achieve 91.44 %; therefore, it also exhibited an excellent self-cleaning effect.
研究领域:
材料科学
·
环境科学
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高影响因子
Journal of Materials Chemistry C
·
2025
·
IF 5.1
Kai Xu,Pei Liu,Yinxu Ni,Qingqing Gao,Jin Chen,Shuai Yin,Zixuan Ding,Guohui Tang,Changtian Zhu,Fenghua Liu
Electromagnetic (EM) pollution has emerged as a pressing concern, driving the demand for high-performance microwave absorbing materials. In this work, attapulgite (ATP) was employed as a natural, porous scaffold for the in situ integration of amorphous TiO2, Fe3O4, and polyaniline (PANI), constructing a multifunctional composite with tailored dielectric and magnetic properties. The TiO2 and PANI coatings not only induced strong interfacial and conduction polarization but also formed a continuous 3D conductive network, enabling efficient energy dissipation. Benefiting from the magneto-electric synergy among PANI, TiO2, and Fe3O4, the composite exhibited multiple loss mechanisms and excellent impedance matching. As a result, a minimum reflection loss of -56.24 dB was achieved at 11.63 GHz (2.9 mm thickness), with an ultra-wide effective absorption bandwidth of 8.1 GHz. More importantly, by integrating 3D printing with metamaterial-inspired design, the absorption range was successfully extended into the low-frequency region (4–6 GHz), while simultaneously enhancing structural integrity and corrosion resistance. This study offers a scalable strategy for designing lightweight, corrosion-resistant microwave absorbers by combining hierarchical conductive frameworks with multifunctional components, opening new avenues for next-generation EM shielding and stealth technologies.
研究领域:
材料科学
·
电磁工程
·
纳米技术
·
复合材料
·
腐蚀科学
·
微波技术
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高影响因子
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
·
2021
·Vol. 28
·期 4
·1238-1246
·
IF 2.931
Z. L. Li,M. S. Fan,S. F. Zhou,B. X. Du
In this work, nano-titanium oxide (TiO
2
) is encapsulated into boron nitride nanosheets (BNNS) by the calcination process to fabricate core-shell structured TiO
2
@BNNS nanofillers. The effects of TiO
2
@BNNS fillers on the DC conductivity, space charge and breakdown strength of polypropylene (PP) composites are investigated. Experimental results show that PP/TiO2@BNNS composites have a lower temperature-dependent conductivity with an activation energy of 0.64 eV, which is much lower than that of PP, 0.95 eV. The DC breakdown strength of PP/TiO
2
@BNNS samples is 22.2% higher than that of PP at 90 °C. The average space charge density and electric field distortion rate of PP/TiO
2
@BNNS are reduced by 6.6 C/m
3
and 23.3%, respectively, compared with PP, under a polarization electric field of 40 kV/mm at 90 °C. It is proven that TiO
2
@BNNS nanofillers form numbers of electrical potential wells for charge carriers, thereby, inhibiting the hot electron transport and their damage to polymer molecules. This work provides an effective method to improve the dielectric performance of PP cable insulation.
研究领域:
材料科学
·
电气工程
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高影响因子
Journal of Materials Chemistry A
·
2026
·
IF 9.2
Xiaodong Wu,Weiye Zhang,Jie Sun,Jiarui Xue,Jiyuan Zhang,Ruibin Jiang,Xuexia He,Qi Li,zhibin lei,Zonghuai Liu
The development of lithium sulfur (Li-S) battery is considerably limited due to the "shuttle effect" of the soluble lithium polysulfides (LiPSs). The introduction of modified separator at the cathode side is proved to be one of the effective solutions. In this work, TiO nanoflakes (TiO-NFs) with (001) exposed facets were successfully prepared to block the shuttle of LiPSs and improve the redox kinetics at the same time. The employment of the polydopamine (PDA) was confirmed to be helpful on inhibiting the morphology change of TiO-NFs during magnesiothermic reduction reaction process. Through visible adsorption, symmetric cells and Li2S nucleation testing, the TiO-NFs is confirmed to possess excellent adsorption and catalytic activity on LiPSs. The assembled batteries by using TiO-NFs@PP modified separator exhibit the initial capacity of 1492 mAh g -1 at 0.1 C. When the current density reached 1 C, the capacity decay per cycle revealed as low as 0.067% after 1000 cycles. Even under the high sulfur loading of 5.5 mg cm -2 , a high areal capacity of 4 mAh cm -2 can be maintained after 100 cycles at 0.2 C. This work provided new methods for the design and preparation of non-stoichiometric metal oxides with specific exposed facets toward high-performance Li-S batteries.
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JOURNAL OF POWER SOURCES
·
2020
·
IF 8.247
Fei Li,Ying Wang,Ri-Sheng Bai,Xiao-Xue Wang,Ma-Lin Li,Ji-Jing Xu
The issue of cathode passivation during cycling resulting in rapid capacity fading and premature battery death is a major challenge that hinders the applications of lithium–oxygen (Li–O 2 ) batteries. Here, a facile strategy of introducing a functional separator based on flexible amination SiO 2 /TiO 2 inorganic woven film (STON WF) is proposed to suppress the cathode passivation problem. The by-products, i.e. HCOOLi, CH 3 COOLi and Li 2 CO 3 can be selectively adsorbed on the STON WF separator preferably compared with the cathode and further proved by the density functional theory (DFT) calculations. Thus, benefiting from the separator, the Li–O 2 cells with super P carbon and catalyst-free cathode show enhanced electrochemical performance (5645 mA h g −1 at a current density of 200 mA g −1 ), good rate capability (discharge voltage of 2.43 V at a current density of 1.5 A g −1 ) and especially superior cycle stability up to 268 cycles. These findings present a promising approach to prevent the premature battery death.
研究领域:
电化学
·
能源材料
·
纳米材料
·
表面化学
·
电池技术
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DOI
高影响因子
CHINESE JOURNAL OF CATALYSIS
·
2025
·
IF 17.7
Yongqi Zhao,Junjie Jiang,Yang Zou,Pu Wang,Xue Li,Xiaolong Liu,Tingyu Zhu
The catalyst cost is a key factor limiting the CO purification of sintering flue gas. Here, an ultra-low-loading high-entropy catalyst was prepared by simple calcination process. By anchoring multiple active metal sites in the stable anatase TiO 2 phase, it shows efficient CO catalytic oxidation activity. The metal components (Pt, Mn, Fe, Co, Ni) were uniformly dispersed on the surface of TiO 2 in the form of high-entropy compounds and undergo strong metal and support interaction with TiO 2 . The results showed that 0.1(PtMnFeCoNi)/TiO 2 achieved complete oxidation of CO at 230 °C, and its catalytic oxidation ability was significantly better than that of the corresponding monometallic and bimetallic catalysts. The high-entropy component adjusts the electronic environment between the TiO 2 support and the metal to promote the reduction of the Ti 3 d band gap, enhances the electron-induced ability of the catalytic system to gas molecules (CO and O 2 ), and exhibits excellent resistance to SO 2 and H 2 O. The work is of great significance to understand the synergistic regulation of catalyst activity by multiple metal at the atomic level and provides a strategy for effectively reducing the content of precious metals in the catalyst.
研究领域:
催化
·
材料科学
·
环境化学
·
纳米技术
·
表面科学
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DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Mengyao Hua,Siyi Wang,Meng Cheng,Guangming Liang,Yafen Zhou,Lei Xu,Guofang Zhang
Photocatalysts UiO-66-(OH) 2 /MnO 2 -TiO 2 with intimate contact interfaces were successfully synthesized by impregnation methods and all of the composites were characterized by a variety of analytical techniques. The results indicated that MnO 2 and TiO 2 form a heterojunction and tightly attached to the surface of UiO-66-(OH) 2 , the generation of MnO 2 -TiO 2 heterojunction improved the catalyst electron-hole separation efficiency, and there was a strong electronic interaction between MnO 2 -TiO 2 and UiO-66-(OH) 2 in the composite. The synergistic combination of high adsorption capacity of UiO-66-(OH) 2 , and efficient interfacial charge transfer between UiO-66-(OH) 2 and MnO 2 -TiO 2 have a significant impact on the enhanced photocatalytic performance for formaldehyde removal. Meanwhile, the hydroxyl radicals (·OH) and superoxide radicals (·O 2 - ) also play a major role in removal of formaldehyde. The formaldehyde removal rate of 70UO/MnO 2 -TiO 2 (1 g 0.15 m 3 ) in self-made closed system under high pressure mercury lamp irradiation is 88.19 % within 5.5 h, if the removal time is extended to 24 h, the formaldehyde removal rate can reach 95.19 %, and the continuous photocatalytic reaction showed that the composite is a highly stable catalyst.
研究领域:
环境科学
·
材料科学
·
催化
·
纳米技术
·
化学工程
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高影响因子
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