铀矿冶2025，Vol.44Issue(2)：78-83,6.DOI:10.13426/j.cnki.yky.2024.12.08
十二烷基苯磺酸钠在白钨矿表面吸附的动力学及热力学特性
Kinetics and Thermdynamics of Sodium Dodecylbenzene Sulfonate Adsorption on Scheelite Surface
摘要
Abstract
To investigate the adsorption characteristics of sodium dodecylbenzene sulfonate on scheelite sur-face,the water bath shaking method was used to study the adsorption capacity,kinetics,and thermodynamic-s.The effects of pH,reagent concentration,temperature on the adsorption characteristics were explored using kinetic and thermodynamic equation models.The results show that under pH=10,the adsorption ca-pacity of sodium dodecylbenzene sulfonate on scheelite surface is the largest,while under pH=7,the adsorp-tion rate is the fastest,which conforms to the pseudo-second-order kinetic equation.Within a certain range,the adsorption capacity of dodecyl benzene sulfonate on scheelite surface is positively correlated with the rea-gent concentration and temperature.The adsorption process conforms to the Freundlich equation,which is an endothermic reaction of heterogeneous multilayer adsorption.关键词
白钨矿/十二烷基苯磺酸钠/吸附量/动力学/热力学Key words
scheelite/sodium dodecylbenzene sulfonate/adsorption capacity/kinetics/thermodynamics分类
化学化工引用本文复制引用
刘明宝,刘恒,刘东,刘雷,张甜,孙超..十二烷基苯磺酸钠在白钨矿表面吸附的动力学及热力学特性[J].铀矿冶,2025,44(2):78-83,6.基金项目
国家自然科学基金面上项目(21973058) （21973058）
陕西省社发攻关项目(2023YBSF344) （2023YBSF344）
陕西省秦创原"科学家+工程师"队伍建设(2024QCY-KXJ-147) （2024QCY-KXJ-147）
商洛学院博士科研启动项目(23SKY022) （23SKY022）
陕西省教育厅产业化培育项目(24JC034) （24JC034）
商洛市2023年度社发攻关项目(2023-S-0022). （2023-S-0022）
