CAJ | 학술논문

研究可逆表面活性剂十一烷基二茂铁三甲基溴化铵(FTMA)在膨润土上的吸附机理,并与CTAB进行对比；同时考察土壤关键因子对FTMA吸附的影响.结果表明,FTMA与CTAB在膨润土上的吸附变化规律一致,饱和吸附量为66cmol/kg,约为膨润土1倍CEC,吸附机制主要为阳离子交换作用.不同温度下 FTMA 吸附等温线均可用 Langmuir 模型描述,吸附量随温度升高(298→318K),由280.6mg/g 增大至350.8mg/g.吸附在8h达到平衡,吸附速率较CTAB慢,并符合准二级动力学方程,化学吸附是主要控制速率步骤.热力学参数计算得出,该吸附是自发吸热过程.随体系离子强度的增大,吸附量下降；共存阳离子对吸附有抑制作用,且影响程度大小为： Ca2+>K+>Na+； pH值对吸附影响较小；腐植酸(HA)的加入促进了FTMA的吸附.
연구가역표면활성제십일완기이무철삼갑기추화안(FTMA)재팽윤토상적흡부궤리,병여CTAB진행대비；동시고찰토양관건인자대FTMA흡부적영향.결과표명,FTMA여CTAB재팽윤토상적흡부변화규률일치,포화흡부량위66cmol/kg,약위팽윤토1배CEC,흡부궤제주요위양리자교환작용.불동온도하 FTMA 흡부등온선균가용 Langmuir 모형묘술,흡부량수온도승고(298→318K),유280.6mg/g 증대지350.8mg/g.흡부재8h체도평형,흡부속솔교CTAB만,병부합준이급동역학방정,화학흡부시주요공제속솔보취.열역학삼수계산득출,해흡부시자발흡열과정.수체계리자강도적증대,흡부량하강；공존양리자대흡부유억제작용,차영향정도대소위： Ca2+>K+>Na+； pH치대흡부영향교소；부식산(HA)적가입촉진료FTMA적흡부.
Thesorption mechanism of reversible cationic surfactant (11-ferrocenylundecyl) trimethylammonium bromide (FTMA) on bentonite was studied, and compared with CTAB; the effects of the key factors of soil on sorption were also studied. Results show that, sorption variation of FTMA is consistent with CTAB, the saturated sorption capacity of FTMA is 66cmol/kg, about one times CEC of bentonite, it suggests that cation exchange is the main sorption mechanism. The isotherms of FTMA all can be described with Langmuir model at different temperature, and the sorption capacity increases from about 280.6mg/g at 298K to about 350.8mg/g at 318K. The sorption of FTMA reaches equilibrium at 8h, the sorption rate is slower than CTAB, and fits Lagergren quasi-second-order kinetics equation, chemical sorption process is the main step of controlling rate. The sorption process is spontaneous and endothermic through thermodynamic parameters calculated. In addition, sorption capacity of FTMA decreases with ionic strength increasing; the sorption is inhibited by coexisting cations, and following order: Ca2+>K+>Na+; the impact of pH is slight and the addition of humic acid (HA) promotes the sorption of FTMA.