Simultaneous electro-transfer of vanadium slag (V-slag) and electrochemical degradation of corncob lignin between two graphite electrodes in sulfuric acid solution were proposed. The electrochemical performance of V-slag dissolved by sulfuric acid solution on the graphite electrode was tested by cyclic voltammetry (CV) and linear polarization (LP) curves. By electrochemical transfer of Fe²⁺/Fe³⁺ and VO²⁺/VO₂⁺ couple, it was found that iron and vanadium in V-slag played an important role in electrocatalysis. SEM, EDS and FT-IR were conducted to characterize the morphology, surface composition and the functional groups of lignin residues. By the inductively coupled plasma spectrometer (ICP) analysis, the cumulative removal rates of Fe and V in V-slag could reach up to 61.3% and 52.6%, respectively after multi rounds reaction. 30 kinds of compounds were identified in the process of degradation via GC–MS analysis. These results provided a new process for valorizing two widespread waste materials, V-slag and corncob lignin.

提出了在硫酸溶液中两个石墨电极之间同时电转移钒渣（V-slag）和电化学降解玉米芯木质素。通过循环伏安法（CV）和线性极化（LP）曲线测试了硫酸溶液溶解钒渣在石墨电极上的电化学性能。通过 Fe ²⁺ /Fe ³⁺和 VO ²⁺ /VO ₂ ^{+的电化学转移}夫妇发现钒渣中的铁和钒在电催化中起重要作用。采用SEM、EDS和FT-IR对木质素残基的形貌、表面组成和官能团进行表征。通过电感耦合等离子体光谱仪（ICP）分析，经过多轮反应，钒渣中Fe和V的累积去除率分别可达61.3%和52.6%。通过 GC-MS 分析鉴定了降解过程中的 30 种化合物。这些结果为评估两种普遍存在的废料 V 型渣和玉米芯木质素提供了一种新工艺。