北京大学学报（自然科学版）2025，Vol.61Issue(5)：931-936,6.DOI:10.13209/j.0479-8023.2025.072
钒渣制备催化剂及其对甲苯的催化氧化性能研究
Preparation of Catalysts from Vanadium Slag and Catalytic Oxidation Performance for Toluene
摘要
Abstract
Vanadium slag(VS)and vanadium tailing slag(DVS)were used as raw materials,respectively.Metal elements in them were leached out with sulfuric acid(as the active components of the catalysts),co-precipitated with NaOH,and then two types of vanadium slag-type catalysts(CVS and CDVS)were prepared via hydrothermal synthesis for the catalytic combustion of toluene.X-ray fluorescence(XRF),Brunauer-Emmett-Teller(BET),scanning electron microscopy(SEM),and X-ray photoelectron spectroscopy(XPS)were used to characterize and analyze the vanadium slag catalysts,including their elemental composition,textural property,surface morphology,and surface electronic environment.The results showed that the vanadium slag catalysts prepared by this method were mainly iron-containing oxides with a well-developed mesoporous structure.The specific surface area of CVS(derived from VS)was up to 190 m2/g,with a narrow pore size distribution and a pore volume of 0.33 cm3/g.CVS had a stronger adsorption capacity for oxygen species on its surface,which contributed to its good catalytic activity for toluene,with T50 and T90 of 202℃ and 246℃,respectively.关键词
钒渣/酸浸/VOCs/甲苯/催化燃烧Key words
vanadium slag/acid leaching/VOCs/toluene/catalytic combustion引用本文复制引用
曾倩,吴艳华,严政,李传敏,曹年平,何俊良,刘建英,杨林..钒渣制备催化剂及其对甲苯的催化氧化性能研究[J].北京大学学报（自然科学版）,2025,61(5):931-936,6.基金项目
国家自然科学基金(51608061)资助 （51608061）
