A review – Synthesis of carbon nanotubes from plastic wastes

Evaluation of carbon nanotubes produced from toluene steam reforming as catalyst support for selective catalytic reduction of NOx

“…In addition, carbon materials can be generated from renewable materials such as biomass-related hydrocarbons 25 or waste materials e.g. plastics 26 . Therefore, exploration of low-cost CNTs for SCR application is meaningful for a sustainable future development.…”

Present Advancement in Production of Carbon Nanotubes and Their Derivatives from Industrial Waste with Promising Applications

“…For example, in petrochemical downstream processing, the hydrocarbon gasses from the methane reformer would contain high content of CH 4 , CO and CO 2 , while those from refining units would consist of large compositions of BTEX, propane and ethylene. The current strategy for using these hydrocarbon gases is to install the carbon-material production unit on-board where the hydrocarbon sources are produced (Alves et al, 2011;Bazargan and McKay, 2012;Mankhand et al, 2012;Yang et al, 2012;Acomb et al, 2014). The use of suitable combustion equipment and catalyst as well as implementation of appropriate operating conditions, such as carbon source, flow of inert gas, and operating pressure, could realize controllable synthesis of CNTs with specifiable characteristics, such as diameter, length and purity Paradise and Goswami, 2007;Prasek, et al, 2011;Morales, et al, 2013).…”

“…They reported that CNTs with average diameter of about 160 nm were synthesized with negligible generation of toxic or corrosive reagents. In addition, effect of synthesizing temperature on catalytic conversion of those plastic wastes to carbonaceous nanomaterials could be manifested through changes of catalyst particle size which is intentionally loaded into the synthesizing reactor (Bazargan and McKay, 2012;Altalhi et al, 2013). As a result, it should be noted that effluents of such plastic waste treating system are gases with substantial amounts of carbon monoxide, light hydrocarbons and hydrogen (Acomb et al, 2014).…”

“…Among various materials, carbon is recognized as an excellent candidate due to its stability and compatibility (Bazargan and McKay, 2012;Nahil et al, 2015). For example, Yang et al (2005) prepared spherical carbon particles or carbon spherules for accommodating Pt nanoparticles which was employed as electrocatalyst in direct methanol fuel cells (DMFCs).…”

“…Such carbonaceous nanomaterial has become of interest for many researchers because of its unique and outstanding properties. Table 1 would give an outlook of appropriate method which could provide some specific carbonaceous nanomaterials (Dai 2002;Popov 2004;Bazargan and McKay 2012;Iijima, 2012). Each synthesizing technique would provide a variety of carbonaceous nanomaterials with different advantages and disadvantages with respect to production yield, purity, and handling.…”