CAJ | 학술논문

利用混酸法与单酸法制备膨胀石墨，通过XRD、FESEM对2种制备方法进行比较并优化工艺条件，对吸附性能进行表征。实验得出，混酸法制备膨胀石墨的最佳工艺为：原料质量配比m（H2SO4）：m（HNO3）：m（石墨）=3：1：1，m（石墨）：m（高锰酸钾）=1．00：0．15，膨化温度为900℃；与单酸法相比，混酸法制备的膨胀石墨膨胀效果明显，吸附性能好，产物结构较规整。
이용혼산법여단산법제비팽창석묵，통과XRD、FESEM대2충제비방법진행비교병우화공예조건，대흡부성능진행표정。실험득출，혼산법제비팽창석묵적최가공예위：원료질량배비m（H2SO4）：m（HNO3）：m（석묵）=3：1：1，m（석묵）：m（고맹산갑）=1．00：0．15，팽화온도위900℃；여단산법상비，혼산법제비적팽창석묵팽창효과명현，흡부성능호，산물결구교규정。
Expanded graphite was prepared by mixed acid method and single acid method. The expanded graphite were characterized by XRD and FESEM and the process conditions were optimized. The adsorption performances of expanded graphite by two methods were compared. The optimum process of expanded graphite by mixed acid method is the mass ratio of raw material of m( H2SO4 ) : m( HNO3 ) : m (graphite) = 3: 1 : 1, m (Graphite) : m ( K2 MnO4 ) = 1.00:0.15, swelling temperature T = 900 ~C. The results showed that expansion effect and adsorption performance of expanded graphite prepared by mixed acid method is good, and it has a regular structure.