Journal of Water Process Engineering
·
2024
·
IF 6.3
Yalong Liu,Binjie Xin,Md All Amin Newton,Lifeng Li,Dan Huang
Oil pollution poses severe threats to both ecosystems and human health. This study utilized electrospinning and carbonization processes to fabricate a SiO2-TiO2-C nanofiber membrane (STCNFM) exhibiting photocatalytic self-cleaning properties designed explicitly for oil-water separation. These membranes possess nanoscale rough structures, endowing them with superoleophilicity (0°) and hydrophobicity (138°). Addressing the limitations associated with traditional ceramic membranes, particularly in terms of stability and reproducibility, cyclic experiments confirm the significant stability and reproducibility of this composite membrane, ensuring reliable long-term applications for continuous oil-water separation. Leveraging the synergistic effect of TiO2 and the carbon fiber substrate, STCNFMs-5 demonstrate exceptional separation performance and notable self-cleaning capabilities. Following a 2-h exposure to ultraviolet light, the membrane's flux is restored to its original level. STCNFMs offer a promising solution for efficiently separating oil-water mixtures and emulsions, holding potential importance in water treatment and resource recovery endeavors.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
Catalysis Science & Technology
·
2023
·Vol. 13
·期 20
·5868-5879
·
IF 5
Guixiang Peng,Xueyang Qi,Wenbin Qu,Xiaoli Shao,Lixin Song,Pingfan Du,Jie Xiong
As a new type of pollutant, microplastics, especially microfibers in textiles, pose a great threat to the environment and human health. It remains challenging to remove such emerging organic pollutants. Photocatalytic technology is an effective strategy for H2 fuel production and pollutant reuse using solar energy due to its low cost and environmental friendliness. In this work, the flexible Ni5P4/TiO2/C nanofiber (NF) film photocatalysts were fabricated by electrospinning, hydrothermal treatment and low-temperature phosphating. With the addition of Ni5P4 onto TiO2/C NFs, the light absorption of composite nanofibers was improved, restraining the recombination of carriers simultaneously. Accordingly, the photocatalytic activity of the NFs was improved. The hydrogen evolution of the Ni5P4/TiO2/C NFs for photocatalytic degradation of PET microfibers reached 76.66 μmolH2 gsub−1 in 12 h, which is three times that of TiO2/C NFs. The weight loss rate of PET microfibers reached 6.23% after Ni5P4/TiO2/C NF catalysis, which was nearly 5 times higher than that without a catalyst (1.2%). In addition, the nanofiber film is easy to recycle and avoids secondary pollution. This work provides new ideas for achieving the goal of reducing microplastic fibers and microplastics in an efficient and environmentally friendly way.
研究领域:
环境科学
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材料科学
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能源科学
✓ 已验证
产品关联
DOI
高影响因子
THIN SOLID FILMS
·
2020
·
IF 2.03
Lixin Song,Piaopiao Chen,Zhaowu Li,Pingfan Du,Yefeng Yang,Ni Li,Jie Xiong
Flexible counter electrode (CE) is a key to develop flexible dye-sensitized solar cells (DSSCs). To obtain flexible CE with well electro-catalytic activity, the carbon nanotubes (CNTs) were employed to modify the flexible TiO 2 /C nanofibrous film. All the CNTs/TiO 2 /C nanofibrous film with incorporation of CNTs into TiO 2 /C nanofiber showed pleasurable flexibility. In addition, the specific surface area, the conductivity, and the electro-catalytic activity of the nanofibrous film increased as the content of CNTs increased, reaching the largest values before decreasing. The CNTs/TiO 2 /C nanofibrous film with 2% of CNTs incorporation possessed optimal electro-catalytic activity. Therefore, the conversion efficiency of the flexible quasi-solid DSSCs based on the nanofibrous film CE was greatly enhanced and the highest conversion efficiency of about 3.4% was achieved. Besides, the properties of the CNTs/TiO 2 /C nanofibrous film almost remained constant after 50 cycles with the bending radius of 1 mm and the twisting angle of 10π, implying that it exhibited excellent bending stability and twisting stability. The flexible CNTs/TiO 2 /C nanofibrous film has a huge potential in flexible devices.
研究领域:
材料科学
·
纳米科技
·
能源材料
·
光电化学
·
柔性电子学
✓ 已验证
DOI
高影响因子
Nano-Micro Letters
·
2021
·Vol. 13
·期 1
·1-14
·
IF 16.419
Su Die,Pei Yi,Liu Li,Liu Zhixiao,Liu Junfang,Yang Min,Wen Jiaxing,Dai Jing,Deng Huiqiu,Cao Guozhong
The unique wire-in-wire structure endows TiO 2 /C nanofibers film with superior mechanical flexibility.
The wire-in-wire TiO 2 /C nanofibers (TiO 2 ww/CN) film shows outstanding electrochemical performances as free-standing anodes for Li/K-ion batteries and full cells.
The TiO 2 ww/CN film shows an extremely high pseudocapacitance contribution ratio in K-ion batteries.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nanoscale
·
2021
·Vol. 13
·期 13
·6635-6643
·
IF 7.79
Die Su,Jing Dai,Min Yang,Jiaxing Wen,Jianping Yang,Wen Liu,Hai Hu,Li Liu,Yan Feng
TiO2-red phosphorus/C nanofibers (TiO2-RP/CN) have been synthesized via electrospinning and then annealed with red phosphorus sublimation. Benefiting from the high electronic/ionic conductivity and robust stability of the unique structure, the TiO2-RP/CN show high reversible capacities, as well as an outstanding cycling ability. In K half cells, the capacity decay of the TiO2-RP/CN electrode mainly occurs in the first few cycles, and at 0.05 A g−1 it delivers a high specific capacity of 257.8 mA h g−1 after 500 cycles. K full cells were fabricated; these are well-matched with PTCDA (perylene-3,4,9,10-tetracarboxylic dianhydride) and also exhibited a good electrochemical performance (62 mA h g−1 after 100 cycles). Therefore, the TiO2-RP/CN are potential anode materials for use in K-ion batteries.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2020
·Vol. 8
·期 39
·20666-20676
·
IF 11.301
Die Su,Li Liu,Zhixiao Liu,Jing Dai,Jiaxing Wen,Min Yang,Sidra Jamil,Huiqiu Deng,Guozhong Cao,Xianyou Wang
Ta-doped TiO2/C nanofibers are synthesized by an electrospinning method. First-principles calculations reveal that the Ta dopant can lower the Li/K diffusion barrier, which is beneficial for improving the rate capability. According to the electronic structure analysis, the dopant can obviously shift the conduction band of TiO2 downward, resulting in significantly improved electronic conductivity. Ta doping causes phase transformation from anatase to rutile, and increases the specific surface area. The well-designed rutile Ta-doped TiO2/C nanofibers show outstanding electrochemical properties in both Li-metal half cells and K-metal half cells, which are much better than those of pristine anatase TiO2/C nanofibers. At 2 A g−1, 5% rutile Ta-doped TiO2/C nanofibers could deliver high reversible specific capacities of 399 mA h g−1 in Li-ion batteries after 1000 cycles whereas deliver 148 mA h g−1 in K-ion batteries after 800 cycles. When assembled, the full cells with 5% rutile Ta-doped TiO2/C nanofibers as the anode and commercial LiFePO4/perylene-3,4,9,10-tetracarboxylic dianhydride as the cathode show excellent cycling performance and can light up more than 18 LEDs. These results demonstrate that Ta-doped TiO2/C nanofibers are a promising anode material for Li/K ion batteries.
研究领域:
材料科学
·
电化学
·
纳米技术
·
能源存储
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）