CAJ | 학술논문

以天然石墨为原料,用Hummers法和超声剥离法制备了氧化石墨烯( GO).将氧化石墨烯浸渍,涂覆于三聚氰胺海绵表面,在线还原制得还原氧化石墨烯基三聚氰胺海绵( RGOME ).通过扫描电子显微镜( SEM)、傅里叶变换红外光谱( FTIR)仪及光学接触角测定仪等分析了RGOME的结构,考察了RGOME对多种油品的吸附性能,并对其油水选择吸附性能和循环使用性能进行了研究.结果表明, RGOME具有疏水超亲油性,对油品的吸附量达到56~127 g/g,可用Bangham方程描述RGOME对甲苯和煤油的吸附动力学过程；在选择吸附过程中,油品浓度急剧降低,吸附量不断升高,分离效率达到74.49%,可较好地实现油水分离；吸附油品的RGOME经脱附可多次循环使用.
이천연석묵위원료,용Hummers법화초성박리법제비료양화석묵희( GO).장양화석묵희침지,도복우삼취청알해면표면,재선환원제득환원양화석묵희기삼취청알해면( RGOME ).통과소묘전자현미경( SEM)、부리협변환홍외광보( FTIR)의급광학접촉각측정의등분석료RGOME적결구,고찰료RGOME대다충유품적흡부성능,병대기유수선택흡부성능화순배사용성능진행료연구.결과표명, RGOME구유소수초친유성,대유품적흡부량체도56~127 g/g,가용Bangham방정묘술RGOME대갑분화매유적흡부동역학과정；재선택흡부과정중,유품농도급극강저,흡부량불단승고,분리효솔체도74.49%,가교호지실현유수분리；흡부유품적RGOME경탈부가다차순배사용.
Graphene oxide ( GO ) was synthesized via the Hummers method and ultrasonic stripping method using the natural graphite as raw materials. Furtherly, reduced graphene oxide-based melamine sponges ( RGOME) were fabricated via a dip-coating method which were post-reduced online. As-prepared RGOME sponges were investigated by scanning electron microscopy ( SEM ) , Fourier transform infrared spectroscopy ( FTIR ) and optical contact angle measuring apparatus. Oil adsorption capacity, the oil/water selective adsorption and reusability of the RGOME sponges were also studied. The results demonstrate that the RGOME sponges exhibit good hydrophobicity and superoleophilicity, and oil adsorption capacity is up to 56-127 g/g. The adsorptive process of oils, like toluene and kerosene, was fitted to the Bangham equation for the isother-mal adsorption. In terms of selective adsorptive process, the concentration of oil in oil-water mixture decreased drastically, while oil adsorption capacity constantly increased. The resulting separation efficiency was up to 74 . 49%, and as-prepared sponges have better performance for oil/water separation than other sorbents repor-ted in the literature. In addition, the RGOME sponges can be reused more than 10 times with gently deteriora-ting in adsorption capacity.