TY - JOUR
T1 - Preparation of carbon nanofibers/tubes using waste tyres pyrolysis oil and coal fly ash derived catalyst
AU - Rambau, Khavharendwe M.
AU - Musyoka, Nicholas M.
AU - Manyala, Ncholu
AU - Ren, Jianwei
AU - Langmi, Henrietta W.
AU - Mathe, Mkhulu K.
N1 - Publisher Copyright:
© 2018, © 2018 Taylor & Francis Group, LLC.
PY - 2018/10/15
Y1 - 2018/10/15
N2 - In this study, two waste materials namely; coal fly ash (CFA) and waste tyres pyrolysis oil, were successfuly utilized in the synthesis of carbon nanofibers/tubes (CNF/Ts). In addition, Fe-rich CFA magnetic fraction (Mag-CFA) and ethylene gas were also used for comparison purposes. The carbons obtained from CFA were found to be anchored on the surface of the cenosphere and consisted of both CNTs and CNFs, whereas those obtained from Mag-CFA consisted of only multi-walled carbon nanotubes (MWCNTs). The study further showed that the type of carbon precursor and support material played an important role in determining the nanocarbon growth mechanism. The findings from this research have demonstrated that it is possible to utilize waste tyres pyrolysis oil vapor as a substitute for some expensive commercial carbonaceous gases.
AB - In this study, two waste materials namely; coal fly ash (CFA) and waste tyres pyrolysis oil, were successfuly utilized in the synthesis of carbon nanofibers/tubes (CNF/Ts). In addition, Fe-rich CFA magnetic fraction (Mag-CFA) and ethylene gas were also used for comparison purposes. The carbons obtained from CFA were found to be anchored on the surface of the cenosphere and consisted of both CNTs and CNFs, whereas those obtained from Mag-CFA consisted of only multi-walled carbon nanotubes (MWCNTs). The study further showed that the type of carbon precursor and support material played an important role in determining the nanocarbon growth mechanism. The findings from this research have demonstrated that it is possible to utilize waste tyres pyrolysis oil vapor as a substitute for some expensive commercial carbonaceous gases.
KW - Carbon nanofibers/tubes
KW - multiwalled carbon nanotubes
KW - pyrolysis oil vapor
KW - waste tyres
UR - http://www.scopus.com/inward/record.url?scp=85047785485&partnerID=8YFLogxK
U2 - 10.1080/10934529.2018.1474594
DO - 10.1080/10934529.2018.1474594
M3 - Article
C2 - 29843557
AN - SCOPUS:85047785485
SN - 1093-4529
VL - 53
SP - 1115
EP - 1122
JO - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
JF - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
IS - 12
ER -