Diethylenetriamine-functionalized reduced graphene oxide having more amino groups for methylene blue removal

Wang, Chubei; Zhou, Jianwei; Chu, Liangliang; Zhang, Mingliang; Xu, Chao; Liu, Jingwen; Li, Shijie

doi:10.1039/d3ra08767k

RSC Adv.

2024

DOI: 10.1039/d3ra08767k

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Diethylenetriamine-functionalized reduced graphene oxide having more amino groups for methylene blue removal

Chubei Wang,

Jianwei Zhou,

Liangliang Chu

et al.

Abstract: 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.

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Post‐Adsorption Properties and Thermodynamic Adsorption Parameters of Various Graphene Oxide‐Based Materials

Le,

Ngo,

Han

et al. 2024

ChemistrySelect

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Graphene oxide (GO) and its composites have been widely studied for environmental applications, including for dye removal. In this study, various GO‐based materials namely GF, GFA, and GFC were successfully synthesized and characterized by FTIR, Raman spectroscopy, FESEM, BET, and TGA methods before and after being used to adsorb methylene blue from aqueous solutions. The BET results reveal that MB molecules most filled in the pores at the size of 100–300 nm of the materials. The adsorption process followed the pseudo‐first‐order equation and Sips isothermal model for all the materials. However, GFA showed the maximum adsorption capacity (Qmax=739 mg/g) and the most negative value of ΔG while the least effective material was GFC. The experiment revealed that GF and GFA could remove up to 95.0 % color on the real textile wastewater sample, and the materials are very promising for dye removal application.

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Post‐Adsorption Properties and Thermodynamic Adsorption Parameters of Various Graphene Oxide‐Based Materials

Le,

Ngo,

Han

et al. 2024

ChemistrySelect

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Design and Synthesis of Imidazole‐Modified Reduced Gaphene Oxide Possessing More Ligands for Removal of Methylene Blue and Chromium

Wang,

Zhou,

Chen

et al. 2024

ChemistrySelect

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A new imidazole‐modified reduced graphene oxide was synthesized through a substitution reaction between amino imidazole and chlorographene. Functional groups and material composition were characterized by using several methods. The N content of product is high, it possesses more ligands. These ligands still combine metal ions under acidic conditions. Adsorption for methylene blue can be fitted by quasi‐second‐order kinetics and Langmuir isotherm model, physical adsorption is the predominant adsorption mechanism. Adsorption capacity (350.7 mg/g) of product for Cr (III) is about fourfold higher than that (74.7 mg/g) of reduced graphene oxide.

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Diethylenetriamine-functionalized reduced graphene oxide having more amino groups for methylene blue removal

Abstract: 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.

Cited by 2 publications

References 40 publications

Post‐Adsorption Properties and Thermodynamic Adsorption Parameters of Various Graphene Oxide‐Based Materials

Post‐Adsorption Properties and Thermodynamic Adsorption Parameters of Various Graphene Oxide‐Based Materials

Design and Synthesis of Imidazole‐Modified Reduced Gaphene Oxide Possessing More Ligands for Removal of Methylene Blue and Chromium

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