化学工程2026，Vol.54Issue(2)：20-25,6.DOI:10.3969/j.issn.1005-9954.2026.02.004
钨青铜结构KSr2Nb5-xTaxO15粉体的制备与摩擦催化性能
Preparation and tribocatalysis performance of KSr2Nb5-xTaxO15 oxide with tungsten-bronze structure
摘要
Abstract
KSr2Nb5-xTaxO15(doping content x=0,1,2,3,4)powders with rod-shaped were synthesized by the molten salt method,.Tribocatalytic performance of the catalysts was evaluated through dye degradation.The results show that the best catalytic activity is achieved in the sample with x=1.The degradation efficiency of Rhodamine B dye reachs 94.2％ after 2 h.Ta substitution improves the spontaneous polarization(Pr=20.06 μC/cm2)and specific surface area(11.4 m2/g)of the catalyst.Meanwhile,under the synergistic effect of friction and illumination,the degradation efficiency of RhB reaches 91.7％ after 50 minutes,and reaction efficiency increases up to 2.08 time.Considered ferroelectric material properties and tribocharging effect,a tribocatalytic mechanism involving the synergistic action between atoms and electron transition was proposed.关键词
摩擦催化/铁电材料/染料降解/电荷转移/钨青铜结构Key words
tribocatalysis/ferroelectric materials/dye degradation/electron transfer/tungsten-bronze structure分类
化学化工引用本文复制引用
刘军君,林施荣,袁志,刘来君..钨青铜结构KSr2Nb5-xTaxO15粉体的制备与摩擦催化性能[J].化学工程,2026,54(2):20-25,6.基金项目
国家自然科学基金资助项目(12264012) （12264012）
