文献类型：期刊文献

英文题名：Diethylenetriamine-functionalized reduced graphene oxide having more amino groups for methylene blue removal

作者：Wang, Chubei[1,2];Zhou, Jianwei[1,2];Chu, Liangliang[1,2];Zhang, Mingliang[1,2];Xu, Chao[3];Liu, Jingwen[2];Li, Shijie[2]

第一作者：王储备

通讯作者：Wang, CB[1]

机构：[1]Xinxiang Univ, Henan Photoelectrocatalyt Mat & Micronano Applicat, Xinxiang 453003, Peoples R China;[2]Xinxiang Univ, Coll Chem & Mat Engn, Xinxiang 453003, Peoples R China;[3]Xinyang Normal Univ, Coll Chem & Chem Engn, Xinyang 464000, Peoples R China

第一机构：新乡学院

通讯机构：[1]corresponding author), Xinxiang Univ, Henan Photoelectrocatalyt Mat & Micronano Applicat, Xinxiang 453003, Peoples R China.|[11071]新乡学院;

年份：2024

卷号：14

期号：5

起止页码：3280-3288

外文期刊名：RSC ADVANCES

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001144830300001)】；

基金：This work has been funded by the He'nan Science and Technology Department (No. 232102230096), the Foundation of He'nan Educational Committee (No. 22B150014), the Xinxiang University Leading Academic Discipline Project (No. 3922210001, 108220223002), and the Xinxiang University Innovation Projects (No. 20210001).

语种：英文

摘要：To obtain a high-performance amino-functionalized graphene, a new aminated graphene was prepared through a substitution reaction between chlorine-functionalized reduced graphene oxide and diethylenetriamine. The product exhibits high nitrogen content uniformly distributed in its sheets, with diethylenetriamine covalently attached to these sheets. The C-N bond in the product was certified by the Fourier transform infrared spectrum, which implies the successful attachment of diethylenetriamine to the graphene sheets. The average interlayer spacing is 0.42 nm. Diethylenetriamine features many more amino groups that act as ligands and spacers during adsorption and layer stacking processes. Compared with the adsorption capacities of reduced graphene oxide (77.1 mg g-1) and activated carbon (46.7 mg g-1), the product exhibits higher adsorption capacity (291.4 mg g-1). The adsorption process fits the quasi-first-order model and Langmuir model. Physical adsorption plays a primary role in the adsorption process. The amino group of the product easily reacts with other chemicals, making it a useful intermediate for other graphene materials. A new aminated graphene was prepared through a substitution reaction between chlorine-functionalized reduced graphene oxide and diethylenetriamine to produce high-performance amino-functionalized graphene for methylene blue removal.