CAJ | 학술논문

　　采用绿色的化学还原法以明胶作为还原剂和保护剂合成了具有良好水溶分散性及大比表面积的明胶功能化的石墨烯（ gelatin-G）。将gelatin-G用于对罗丹明B（ RB）的吸附动力学研究，系统考察了吸附动力学、吸附等温线、pH值、温度及盐效应对吸附性能的影响。利用吸附模型对RB在gelatin-G上吸附平衡的模拟表明RB在gelatin-G上的吸附过程是静电相互作用的结果。最大吸附容量可达106.6 mg· g-1，其吸附动力学完全符合拟二级吸附动力学模型，化学吸附为速率控制步骤。
　　채용록색적화학환원법이명효작위환원제화보호제합성료구유량호수용분산성급대비표면적적명효공능화적석묵희（ gelatin-G）。장gelatin-G용우대라단명B（ RB）적흡부동역학연구，계통고찰료흡부동역학、흡부등온선、pH치、온도급염효응대흡부성능적영향。이용흡부모형대RB재gelatin-G상흡부평형적모의표명RB재gelatin-G상적흡부과정시정전상호작용적결과。최대흡부용량가체106.6 mg· g-1，기흡부동역학완전부합의이급흡부동역학모형，화학흡부위속솔공제보취。
Gelatin functionalized graphene ( gelatin-G) was prepared using gelatin as reduce and functionalized agent through a green chemical reduction synthesis method .As-prepared gelatin-G had well dispersity and large special surface area which could increase the loading amount of adsorbent .In this work ,gelatin-G was used to study the adsorption dynamics of rhodamine B on which .Futh-ermore,the adsorption isotherms ,pH value,temperature and salt effect were also investigated systematically .The fitting results of ad-sorption model suggested that the adsorption equilibrium of RB on gelatin-G was based on the electrostatic interaction with the maxi-mum adsorption capacity of 106.6 mg· g-1 .The adsorption dynamics was consistent with the pseudo-second-order kinetics model and the chemisorption was the rate-limiting step in whole adsorption procedure .