CAJ | 학술논문

为了改善蒙脱土的界面极性和化学微环境，利用十六烷基三甲基溴化铵（CTAB）通过离子交换法对其进行了有机改性．考察了改性剂的加入量、反应时间、反应温度等对改性效果的影响，并用X射线衍射仪（XRD）、红外光谱仪（FT-IR）和扫描电子显微镜（SEM）等对样品的结构和形貌进行表征，同时研究了改性蒙脱土对水体中苯酚的吸附性能．结果表明：CTAB进入到蒙脱土层间，蒙脱土的界面环境由亲水疏油型转变为亲油疏水型，对有机物表现出良好的吸附性．当改性剂的加入量为2．4g、反应温度为60℃、反应时间为1h时，制得的有机蒙脱土对50mL、质量浓度为50mg·L-1的苯酚溶液的吸附率达到87．19％．
위료개선몽탈토적계면겁성화화학미배경，이용십륙완기삼갑기추화안（CTAB）통과리자교환법대기진행료유궤개성．고찰료개성제적가입량、반응시간、반응온도등대개성효과적영향，병용X사선연사의（XRD）、홍외광보의（FT-IR）화소묘전자현미경（SEM）등대양품적결구화형모진행표정，동시연구료개성몽탈토대수체중분분적흡부성능．결과표명：CTAB진입도몽탈토층간，몽탈토적계면배경유친수소유형전변위친유소수형，대유궤물표현출량호적흡부성．당개성제적가입량위2．4g、반응온도위60℃、반응시간위1h시，제득적유궤몽탈토대50mL、질량농도위50mg·L-1적분분용액적흡부솔체도87．19％．
In order to improve the interface environment of montmorillonite ,organic montmo-rillonite(OMMT) was prepared through ion exchange method using cetyl trimethyl ammoni-um bromide(CTAB) .The structure and morphology of OMMT were characterized by XRD , FT-IR and SEM .At the same time ,the adsorption of OMMT on phenol was studied .The re-sults show that cetyl trimethyl ammonium bromide was intercalated into the layers of mont-morillonite ,and montmorillonite transformed from hydrophilic to hydrophobicity .It show improved adsorption toward phenol .When the amount of modifier is 2 .4 g ,reaction temper-ature is 60 ℃ and reaction time is 1 h ,the adsorption rate of phenol by OMMT at 50 mL ,50 mg · L -1 initial concentration increases to 87 .19% .