Abstract
In this work, the effect of adding manganese oxide towards polyacrylonitrile-based activated carbon nanofibers (ACNFs) was evaluated. The properties of PAN-based ACNFs/MnO2 were analyzed by using scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET), and Fourier transform infrared (FTIR). The sorption study of the electrospun ACNFs/MnO2 in comparison to neat ACNFs and commercial granular AC towards lead (Pb) was also conducted. SEM micrograph analysis displays more compact nanofibers with dispersion of beads that were observed in the ACNF/MnO2 with the diameter of 437.2 nm while aligned nanofibers with the diameter of 575.5 nm were observed in the neat ACNFs. The FTIR analysis showed the peak of Mn–O, which indicates the presence of MnO2 in the ACNFs/MnO2. In comparison to the neat ACNFs, surface area of the prepared ACNFs/MnO2 is lower. It was found out that the removal of Pb(II) using ACNFs and ACNFs/MnO2 is higher than commercial granular activated carbon with a removal rate of 100% at initial concentration of 3.5 ppm. The promising results of ACNFs/MnO2 contributed by their satisfactory specific surface area and vast presence of surface functional groups.
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Acknowledgements
The main author (Norfadhilatuladha Binti Abdullah) as well as all co-authors would like to extend their appreciation to the Ministry of Education of Malaysia and Universiti Teknologi Malaysia under Fundamental Research Grant Scheme (RJ130000.7846.4F929), GUP Grant Scheme (Q.J130000.2546.16H29), HICOE grant scheme (R.J090301.7846.4J179), and PRGS-ICC UTM (RJ130000.7746.4J329). The main author would also like to thank Research Management Centre (RMC) and Zamalah Scholarship of Universiti Teknologi Malaysia on their full technical and management support.
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Abdullah, N., Yusof, N., Ismail, A.F. et al. Effects of manganese(VI) oxide on polyacrylonitrile-based activated carbon nanofibers (ACNFs) and its preliminary study for adsorption of lead(II) ions. emergent mater. 1, 89–94 (2018). https://doi.org/10.1007/s42247-018-0008-y
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DOI: https://doi.org/10.1007/s42247-018-0008-y