CAJ | 학술논문

以二茂铁和四氯乙烯作为反应物,采用热解法在600℃反应10 h得到一种高产率的剪纸状的碳片.扫描电镜的结果表明,剪纸状碳材料的厚度为20～40 nm,宽度为100～200nm.通过氮气吸附-脱附等温曲线计算出产物的比表面积高达1 209m2/g,孔径分布在0.58～1.2 nm之间.一系列对比实验表明,合成剪纸状碳材料的最佳条件为:0.093 g二茂铁,反应温度为600℃,反应时间为10 h.通过调整二茂铁与四氯乙烯的比例,可控制产物的形貌从剪纸状转化为空心球.剪纸状碳对于苯酚的吸附性能(82％)要远高于对罗丹明B的吸附性能(48％),并对其给出了可能的解释.
이이무철화사록을희작위반응물,채용열해법재600℃반응10 h득도일충고산솔적전지상적탄편.소묘전경적결과표명,전지상탄재료적후도위20～40 nm,관도위100～200nm.통과담기흡부-탈부등온곡선계산출산물적비표면적고체1 209m2/g,공경분포재0.58～1.2 nm지간.일계렬대비실험표명,합성전지상탄재료적최가조건위:0.093 g이무철,반응온도위600℃,반응시간위10 h.통과조정이무철여사록을희적비례,가공제산물적형모종전지상전화위공심구.전지상탄대우분분적흡부성능(82％)요원고우대라단명B적흡부성능(48％),병대기급출료가능적해석.
Decoupage-like carbon sheets(DLCSs)were obtained on a large scale by pyrolysis of tetrachloroethylene and ferrocene in an autoclave at 600 ℃ for 10 h.The scanning electron microscopy(SEM)images show that the thickness and the width of DLCSs are about 20～40 nm,100～200 nm,respectively.The nitrogen adsorption/desorption isotherm experiments reveal that the Brunauer-Emmett-Teller(BET)specific surface area of the product is 1 209 m2/g and the pore-size distribution is concentrated in the range of 0.58 ～ 1.2 nm.A series of comparative experimental results demonstrate that the most favorable temperature,amount of ferrocene and reaction time are 600 ℃,0.093 g and 10 h for synthesis of DLCSs.By adjusting reaction parameters,hollow carbon spheres and carbon sheets can also be selectively prepared using onepot reactions.A possible formation mechanism for the DLCSs was proposed based on the diffusion-limited aggregation(DLA)model.The adsorption behavior of DLCSs were evaluated by the removal of phenol and Rhodamine B(RB),which can remove about 82％ of phenol and 48％of RB without any other additives.A possible reason for this phenomenon was also discussed.