Hierarchical Porous Carbon Derived from Carex Meyeriana Kunth with Natural Channel Arrays for Rapid and Efficient Removal of Dye and Antibiotic from Water

Qi, Jiaxu; Liu, Xingyu; Zhang, Yupeng; Zhu, Guanya; Chen, Siji; Tang, Shanshan; Liang, Dapeng; Yu, Xiaoxiao; Su, Yingjie; Chen, Guang

doi:10.2139/ssrn.3975248

Cited by 1 publication

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Section: Introductionmentioning

confidence: 99%

“…In addition, carex meyeriana Kunth has good antibacterial, moisture absorption, ventilation, cold resistance, warmth retention and ultraviolet resistance. It is a rare new environment-friendly material 6,7 .Because of the outstanding advantages of cellulose, the research on nanofibers from cellulose has aroused great interest [8][9][10][11] . When cellulose is combined with nano-materials to produce nano-cellulose, the original advantages of cellulose will be increased by the characteristics of nano-materials such as large specific surface area, strong mechanical properties and strong adsorption [12][13][14] .…”

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Preparation and characterization of carex meyeriana Kunthcellulose nanofibers by electrospinning

Sun

et al. 2022

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The cellulose of carex meyeriana kunth (CMKC) was used as raw material, and the spinning solution was prepared by combining with polyacrylonitrile (PAN). The nano-cellulose fiber of carex meyeriana kunth (CMKN) was prepared by electrospinning. Used to remove methylene blue dye (MB) in aqueous solution. In the electrospinning experiment, the addition of CMKC was in the range of 5% ~ 25%, the feed rate of spinning parameters was set in the range of 0.2 ~ 1.0 mL/h, the distance from the needle tip to the collecting plate was in the range of 10 ~ 25 cm, and the voltage was changed in the range of 15 ~ 25 kV. The obtained CMKN was characterized by scanning electron microscope, X-ray diffraction (XRD) and Fourier transform infrared spectroscopy. The MB removal rate was evaluated in the dye removal experiment, and the effects of CMKN on MB removal rate under the factors of CMKC dosage, temperature, shock time and MB initial concentration were discussed. The optimum process conditions were determined by response surface methodology. The results show that the prepared fibers are superfine fibers with nanometer diameter, and the spun nanofibers have smooth surface, high overall orientation and strong uniformity. The adsorption kinetics of prepared CMKN accords with quasi-second order model, and the adsorption isotherm accords with Langmuir model. The maximum dye removal rate of CMKN is 63.24%.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%