Efficient Degradation of Hazardous Dechlorane Plus by Solvent-Free Mechanochemical Strategy for Green Synthesis of Supercapacitive Alkynyl Carbon Material

Abstract

Exploring new POPs disposal strategies and synthesizing carbonous energy storage materials are two important and urgent issues in environmental and energy fields, which may be realized simultaneously through an efficient one-pot process that applies the carbon skeleton structure of POPs in the synthesis of advanced functional carbon materials. Herein, a solvent-free mechanochemical strategy is proposed to convert hazardous dechlorane plus (DP) into alkynyl carbon material (ACM) with a unique structure and high electrochemical performance. In this process, DP is efficiently degraded into ACM and harmless CaCl₂ with CaC₂ as co-milling reagent, the strategy shows green and feasible manner, and main influence factors show reciprocal compensatory effect. The resultant ACM possesses unique composition and structure with alkynyl-linked DP carbon skeleton and well ordered internal structure. Besides, the ACM electrode exhibits good electrochemical performance with high specific capacitance (222.6 F cm^–3), good electrical conductivity and outstanding cycling stability. This study realizes the integrated combination of efficient degradation of hazardous DP and green synthesis of functional ACMs, further provides an innovative perspective for the current problems in the field of environment, energy, and materials.