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Towards Dye Extraction Using A Three-Dimensional Graphene-Carbon Nanotubes Magnetic Aerogel

Zu Rong Ang Ing Kong Rachel Shin Yie Lee Cin Kong Akesh Babu Kakarla Ai Bao Chai Wei Kong

Zu Rong Ang, Ing Kong, Rachel Shin Yie Lee, Cin Kong, Akesh Babu Kakarla, Ai Bao Chai, Wei Kong. Towards Dye Extraction Using A Three-Dimensional Graphene-Carbon Nanotubes Magnetic Aerogel[J]. NEW CARBOM MATERIALS. doi: 10.1016/S1872-5805(21)60023-23
Citation: Zu Rong Ang, Ing Kong, Rachel Shin Yie Lee, Cin Kong, Akesh Babu Kakarla, Ai Bao Chai, Wei Kong. Towards Dye Extraction Using A Three-Dimensional Graphene-Carbon Nanotubes Magnetic Aerogel[J]. NEW CARBOM MATERIALS. doi: 10.1016/S1872-5805(21)60023-23

doi: 10.1016/S1872-5805(21)60023-23

Towards Dye Extraction Using A Three-Dimensional Graphene-Carbon Nanotubes Magnetic Aerogel

Funds: The authors gratefully acknowledge the facilities, the scientific and technical assistance of Engineering Research Department, University of Nottingham Malaysia Campus and School of Applied Physics, National University of Malaysia.
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  • Figure  1.  Basic schematic of 3DmGT-PVA aerogel fabrication

    Figure  2.  (a) Optical photographs of 3DmGT-PVA aerogels. FESEM images of aerogels: (b) F1 aerogel with pores, (c) F3 aerogel with 1500× and (d) 60000× magnification and (e) F6 aerogel

    Figure  3.  XRD patterns of (a) PVA, (b) GT, (c) Ni0.5Zn0.5Fe2O4 nanoparticles and (d) F3 aerogel

    Figure  4.  TGA curves of aerogels

    Figure  5.  VSM magnetization curves for aerogels

    Figure  6.  (a) MB solution treated by 3D mGT-PVA aerogel and GT after 48 h, (b) UV-Vis spectrums and (c) bar chart of qe and η.

    Figure  7.  Graph of η and amount of dye removed per mass of F3 aerogel against mass of F3 aerogel added.

    Figure  8.  Graph of η and qe against pH of MB solution.

    Figure  9.  Graphs of (a) qt against t, (b) pseudo-first-order and (c) pseudo-second-order kinetic models.

    Figure  11.  Bar chart of η for dyes involved.

    Figure  12.  The effect of F3 on the overall lifespan of C. elegans. F3 did not significantly shorten the basal lifespan of the worm population (p>0.05), (n=90). Data are presented as mean ± standard deviation of one representative replicate.

    Table  1.   Saturation magnetization (MS), coercivity (HC) and retentivity (MR) at room temperature for the aerogels

    SampleMS (emu g−1)HC (G)MR (emu g−1)
    F12.5352.1810.000937
    F22.8084.7760.00203
    F33.5198.6510.00338
    F44.5841.4980.00211
    F56.0291.1690.00237
    F610.2931.0770.00278
    Ni0.5Zn0.5Fe2O410.6960.6250.00252
    下载: 导出CSV

    Table  2.   Kinetic parameters for F3 aerogel.

    Kinetic ModelParametersValue
    Pseudo first- orderqe (mg g−1)66.87
    qe error (%)5.85
    k1 (1 min−1)0.0109
    R20.9453
    Pseudo second-orderqe (mg g−1)84.75
    qe error (%)19.3
    k2 (g mg−1 min−1)0.00016
    R20.9528
    V0 (mg g−1 min−1)1.15
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-01-01
  • 修回日期:  2021-01-01
  • 网络出版日期:  2021-03-17

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