g-C3N4 composited TiO2 nanofibers were prepared by high voltage electrostatic spinning to improve photocatalytic efficiency

Wang, Tao; Xu, Jiahui; Zhang, Zhengmei; Bian, Haiqin; Xiao, Huan; Sun, Tianyi

doi:10.1007/s10854-020-04890-7

Cited by 7 publications

(6 citation statements)

References 29 publications

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“…Although TiO 2 has the potential to be one of the most efficient destructive photocatalysts for the majority of organic pollutants in OPW, it suffers from a low light absorption region and a low quantum yield, which hampers the formation of free radicals [ 43 , 44 ]. The capability of TiO 2 is limited by the low rate of degradation for certain organic compounds, insufficient photon energy, and mass contact for TiO 2 at the high concentration of organic pollutants [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

A Review of Titanium Dioxide (TiO2)-Based Photocatalyst for Oilfield-Produced Water Treatment

et al. 2022

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Oilfield produced water (OPW) has become a primary environmental concern due to the high concentration of dissolved organic pollutants that lead to bioaccumulation with high toxicity, resistance to biodegradation, carcinogenicity, and the inhibition of reproduction, endocrine, and non-endocrine systems in aquatic biota. Photodegradation using photocatalysts has been considered as a promising technology to sustainably resolve OPW pollutants due to its benefits, including not requiring additional chemicals and producing a harmless compound as the result of pollutant photodegradation. Currently, titanium dioxide (TiO2) has gained great attention as a promising photocatalyst due to its beneficial properties among the other photocatalysts, such as excellent optical and electronic properties, high chemical stability, low cost, non-toxicity, and eco-friendliness. However, the photoactivity of TiO2 is still inhibited because it has a wide band gap and a low quantum field. Hence, the modification approaches for TiO2 can improve its properties in terms of the photocatalytic ability, which would likely boost the charge carrier transfer, prevent the recombination of electrons and holes, and enhance the visible light response. In this review, we provide an overview of several routes for modifying TiO2. The as-improved photocatalytic performance of the modified TiO2 with regard to OPW treatment is reviewed. The stability of modified TiO2 was also studied. The future perspective and challenges in developing the modification of TiO2-based photocatalysts are explained.

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Section: Introductionmentioning

confidence: 99%

A Review of Titanium Dioxide (TiO2)-Based Photocatalyst for Oilfield-Produced Water Treatment

et al. 2022

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“…11 –14 Electrospinning, as a simple and effective new processing technology capable of producing nanofibers, 15 –17 will play a significant role in biomedical materials, filtration and protection, catalysis, energy, optoelectronics, food engineering, cosmetics, and other fields as nanotechnology advances. 9,14,18,19…”

Section: Introductionmentioning

confidence: 99%

Preparation and properties of PAN nanofiber membrane based on spiral spinning technology

Zhao

Zhu

et al. 2023

Journal of Engineered Fibers and Fabrics

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The PAN spinning solution was chosen as the spiral spinning research object. Laminar flow theory was used to straighten and align macromolecules, and spiral spinning needles were used to control the spiral twisting of straightened PAN macromolecules. The internal spiral arrangement of PAN nanofibers became more compact as the helix number of spinning needles increased. The TEM (transmission electron microscope) was used to photograph the motion trajectory of TiO2 (titanium dioxide) nanoparticles in nanofibers, which directly confirmed the feasibility of the spiral spinning principle. SEM (Scanning Electronic Microscopy) observations revealed that the appearance of the PAN nanofiber membranes changed to some extent under spiral physical technology. The analysis of the tensile and bursting properties of PAN nanofiber membranes demonstrated that the structure of the nanofibers changed significantly after spiral spinning. The pore structure, electrical resistance, and antibacterial properties of PAN nanofiber membrane all reached optimal values at the optimal helix number of spinning needle.

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“…The TiO 2 /g-C 3 N 4 nanocomposites showed improved photocatalytic degradation performance for RhB solution. 33 However, the massive g-C 3 N 4 tended to aggregate on the TiO 2 nanofibers. However, neither the blocks nor the adhesions of g-C 3 N 4 were negligible on account of the intrinsic agglomerating properties of g-C 3 N 4 on the TiO 2 nanofibers during the calcination, which led to a limited surface area that is detrimental for forming homogeneous heterojunctions between TiO 2 and g-C 3 N 4 .…”

Section: Introductionmentioning

confidence: 99%

Continuous g-C₃N₄layer-coated porous TiO₂fibers with enhanced photocatalytic activity toward H₂evolution and dye degradation

et al. 2022

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g-C3N4 composited TiO2 nanofibers were prepared by high voltage electrostatic spinning to improve photocatalytic efficiency

Cited by 7 publications

References 29 publications

A Review of Titanium Dioxide (TiO2)-Based Photocatalyst for Oilfield-Produced Water Treatment

A Review of Titanium Dioxide (TiO2)-Based Photocatalyst for Oilfield-Produced Water Treatment

Preparation and properties of PAN nanofiber membrane based on spiral spinning technology

Continuous g-C₃N₄layer-coated porous TiO₂fibers with enhanced photocatalytic activity toward H₂evolution and dye degradation

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g-C3N4 composited TiO2 nanofibers were prepared by high voltage electrostatic spinning to improve photocatalytic efficiency

Cited by 7 publications

References 29 publications

A Review of Titanium Dioxide (TiO2)-Based Photocatalyst for Oilfield-Produced Water Treatment

A Review of Titanium Dioxide (TiO2)-Based Photocatalyst for Oilfield-Produced Water Treatment

Preparation and properties of PAN nanofiber membrane based on spiral spinning technology

Continuous g-C3N4layer-coated porous TiO2fibers with enhanced photocatalytic activity toward H2evolution and dye degradation

Contact Info

Product

Resources

About

Continuous g-C₃N₄layer-coated porous TiO₂fibers with enhanced photocatalytic activity toward H₂evolution and dye degradation