Effects of aspect ratio of multi-walled carbon nanotubes on coal washery waste water treatment

被引：15
作者：
Aliyu, Ahmed [1 ,3 ]
Kariim, Ishaq [2 ,3 ]
Abdulkareem, Sala Ambali [2 ,3 ]
机构：
[1] Fed Univ Wukari, Dept Chem Sci, PMB 1020, Wukari, Taraba State, Nigeria
[2] Fed Univ Technol Minna, Sch Engn & Engn Technol, Dept Chem Engn, PMB 65, Minna, Niger State, Nigeria
[3] Fed Univ Technol Minna, Ctr Genet Engn & Biotechnol, Nanotechnol Res Grp, PMB 65, Minna, Niger State, Nigeria
来源：
JOURNAL OF ENVIRONMENTAL MANAGEMENT | 2017年 / 202卷
关键词：
Multi-walled carbon nanotubes; Catalytic chemical vapour deposition; Characterization High resolution transmission electron microscope; Dynamic Light Scattering; Aspect ratio; Coal washery; CATALYST; GROWTH;
D O I：
10.1016/j.jenvman.2017.07.011
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The dependency of adsorption behaviour on the aspect ratio of multi-walled carbon nanotubes (MWCNTs) has been explored. In this study, effect of growth temperature on yield and aspect ratio of MWCNTs by catalytic chemical vapour deposition (CCVD) method is reported. The result revealed that yield and aspect ratio of synthesised MWCNTs strongly depend on the growth temperature during CCVD operation. The resulting MWCNTs were characterized by High Resolution Transmission Electron Microscope (HRTEM), Dynamic Light Scattering (DLS) and X-ray diffraction (XRD) techniques to determine it diameter, hydrodynamic diameter and crystallinity respectively. Aspect ratio and length of the grown MWCNTs were determined from the HRTEM images with the hydrodynamic diameter using the modified Navier-Stokes and Stokes-Einstein equations. The effect of the prepared MWCNTs dosage were investigated on the Turbidity, Iron (Fe) and Lead (Pb) removal efficiency of coal washery effluent. The MWCNTs with higher length (58.17 mu m) and diameter (71 nm) tend to show high turbidity and Fe removal, while MWCNTs with lower length (38.87 mu m) and diameter (45 nm) tend to show high removal of Pb. Hence, the growth temperature during CCVD operation shows a great effluence on the aspect ratio of MWCNTs which determines it area of applications. (C) 2017 Elsevier Ltd. All rights reserved.
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页码：84 / 93
页数：10
相关论文
共 21 条
[1]  
Abdullah HB, 2017, PERTANIKA J SCI TECH, V25, P379
[2]   Effect of coating mild steel with CNTs on its mechanical properties and corrosion behaviour in acidic medium [J].
Abdulrahaman M.A. ;
Abubakre O.K. ;
Abdulkareem S.A. ;
Tijani J.O. ;
Aliyu A. ;
Afolabi A.S. .
Advances in Natural Sciences: Nanoscience and Nanotechnology, 2017, 8 (01)
[3]   Novel cross-linked melamine based polyamine/CNT composites for lead ions removal [J].
Al Hamouz, Othman Charles S. ;
Adelabu, Isaiah Olabisi ;
Saleh, Tawfik A. .
JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2017, 192 :163-170
[4]   Synthesize multi-walled carbon nanotubes via catalytic chemical vapour deposition method on Fe-Ni bimetallic catalyst supported on kaolin [J].
Aliyu, A. ;
Abdulkareem, A. S. ;
Kovo, A. S. ;
Abubakre, O. K. ;
Tijani, J. O. ;
Kariim, I .
CARBON LETTERS, 2017, 21 (01) :33-50
[5]  
GORCHEV HG, 1984, WHO CHRON, V38, P104
[6]   Double-walled carbon nanotubes fabricated by a hydrogen arc discharge method [J].
Hutchison, JL ;
Kiselev, NA ;
Krinichnaya, EP ;
Krestinin, AV ;
Loutfy, RO ;
Morawsky, AP ;
Muradyan, VE ;
Obraztsova, ED ;
Sloan, J ;
Terekhov, SV ;
Zakharov, DN .
CARBON, 2001, 39 (05) :761-770
[7]   SINGLE-SHELL CARBON NANOTUBES OF 1-NM DIAMETER [J].
IIJIMA, S ;
ICHIHASHI, T .
NATURE, 1993, 363 (6430) :603-605
[8]   HELICAL MICROTUBULES OF GRAPHITIC CARBON [J].
IIJIMA, S .
NATURE, 1991, 354 (6348) :56-58
[9]   Characterization and antibacterial activity of nickel ferrite doped α-alumina nanoparticle [J].
Ishaq, Kariim ;
Saka, Abdulkareem Ambali ;
Kamardeen, Abubakre Oladiran ;
Ahmed, Aliyu ;
Alhassan, Mohammed Is'haq ;
Abdullahi, Hamidu .
ENGINEERING SCIENCE AND TECHNOLOGY-AN INTERNATIONAL JOURNAL-JESTECH, 2017, 20 (02) :563-569
[10]   Correlation between metal catalyst particle size and carbon nanotube growth [J].
Kukovitsky, EF ;
L'vov, SG ;
Sainov, NA ;
Shustov, VA ;
Chernozatonskii, LA .
CHEMICAL PHYSICS LETTERS, 2002, 355 (5-6) :497-503
123