The resource utilization of waste plastic can not only control environmental pollution but can also ease up the problems of lack of energy resources. In this study, molybdenum carbide (Mo 2 C) nanoparticles have been synthesized by utilizing waste polyvinyl chloride as a carbon source in a stainless-steel autoclave at 600 °C. X-ray diffraction pattern indicates that the product is orthorhombic phase Mo 2 C. Electron microscopy photographs show that the obtained Mo 2 C product consisted of crystalline nanoparticles with an average size of 50 nm. The possible formation mechanisms of Mo 2 C have been also briefly discussed on the basis of the structures of the products synthesized with different reaction times. The effects of reaction temperature on the crystallinity and microstructure of the obtained products have been investigated. The results show that higher reaction temperature promotes the formation of Mo 2 C with high crystallinity.
With the increasing use of plastic products, the environmental pollution has become more and more serious, and it also prompts us to focus on the urgent problem: how do we deal with the waste plastic? This work develops a facile procedure to convert waste polyvinyl chloride (PVC) into tantalum carbide@carbon, via the chemical reaction of waste PVC, tantalum pentoxide, and metallic lithium in a stainless‐steel autoclave at 700°C. The structures, compositions, and morphologies of the as‐obtained products have been investigated by X‐ray diffraction pattern and electron microscopy. Furthermore, the effect of the reaction temperature on the composition and morphology of the as‐obtained products has been investigated. The possible formation mechanism of tantalum carbide has also been briefly discussed.
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