Akademik Veri Yönetim Sistemi
Waste and Biomass Valorization, cilt.13, sa.12, ss.4951-4962, 2022 (SCI-Expanded)
© 2022, The Author(s), under exclusive licence to Springer Nature B.V.In the study, it was aimed to define a new method for the production of clustered and hierarchical carbon spheres from waste tyres, 80% of which cannot be used in the world. A clustered and hierarchical carbon sphere was produced by applying chemical degradation and autoclave processes to waste tyre scraps, respectively. Waste tyre slurry was obtained by degrading the waste tyre scraps after waste tyre scraps swelled in H2SO4 and CH3OH–NaOH solution were mixed for 15 min at room condition. Different pressure (1–2.5–5 MPa), time (2–3–4 h) and temperature (200–300–400 °C) were chosen as parameters for the production of carbon spheres from 20 g of waste tyre slurry in the autoclave process. The produced carbon spheres were characterized by CHNS, FT-IR, SEM, BET, XRD, TEM, Raman analyzes. It has been determined that the most suitable conditions for the production of clustered and hierarchical carbon spheres from waste tyre were for 3 h at 300 °C under 5 MPa. The surface area of the clustered and hierarchical carbon sphere obtained under these conditions was 559.5 m2/g. As a result, a simple and cost-effective new method was introduced using waste tyre as the carbon source for the production of carbon spheres.