CAJ | 학술논문

用阳离子表面活性剂CnTAB(n=12,14,16,18)和两性生物表面活性剂SDG以8:2的摩尔比混合作为模板剂,在酸性条件下晶化,碱性条件下老化合成了三维有序介孔二氧化硅.合成的产物用XRD 、SEM、TEM和N2吸附进行表征.结果表明,在不同链长的表面活性剂CnTAB(n=12,14,16,18)中,C14TAB与SDG混合所得样品C14DG的有序度最好.而C16TAB和C18TAB与SDG混合所得样品的孔径约为9nm.两性表面活性剂SDG对产物的形貌和三维六方结构都有影响.
용양리자표면활성제CnTAB(n=12,14,16,18)화량성생물표면활성제SDG이8:2적마이비혼합작위모판제,재산성조건하정화,감성조건하노화합성료삼유유서개공이양화규.합성적산물용XRD 、SEM、TEM화N2흡부진행표정.결과표명,재불동련장적표면활성제CnTAB(n=12,14,16,18)중,C14TAB여SDG혼합소득양품C14DG적유서도최호.이C16TAB화C18TAB여SDG혼합소득양품적공경약위9nm.량성표면활성제SDG대산물적형모화삼유륙방결구도유영향.
Ordered mesoporous silica with a 3D hexagonal structure was synthesized using mixed cationic CnTMBr (n=12,14,16,18) and amphoteric biological surfactants sodium N-dodecyl glycine (SDG) at a molar ratio of 8:2.Synthesis proceeded with hydrolysis and condensation of tetraethyl orthosilicate (TEOS) under acidic conditions,followed by aging in an alkaline medium.The synthesized products were characterized using X-ray diffraction,scanning electron microscopy,transmission electron microscopy,and nitrogen sorption analysis.Mesoporous silica with pore diameter of about 9 nm was obtained using C16TMBr or C18TMBr and SDG,as mixed templates.The presence of the amphoteric biological surfactant SDG was responsible for formation of the 3D hexagonal structure.