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Synthesis of Hierarchical Porous Carbon in Molten Salt and Its Application for Dye Adsorption.


ABSTRACT: Hierarchical porous carbon was successfully synthesized from glucose in a molten salt at 800 °C for 2 h. It was amorphous and contained numerous oxygen containing functional groups on its surface. The porous carbon with 1.0 wt% Fe(NO3)3·9H2O oxidizing agent showed the highest specific surface area of 1078 m2/g, and the largest pore volume of 0.636 cm3/g, among all of the samples. Raman and TEM results revealed that it had more defects and pores than other as-prepared carbon materials. The adsorption capacities of as-prepared porous carbon for methylene blue (MB) and methyl orange (MO) were 506.8 mg/g and 683.8 mg/g, respectively. The adsorption isotherms fit the Langmuir model and the adsorption kinetics followed the pseudo-second-order kinetic model.

SUBMITTER: Li S 

PROVIDER: S-EPMC6723312 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature

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Synthesis of Hierarchical Porous Carbon in Molten Salt and Its Application for Dye Adsorption.

Li Saisai S   Zhang Haijun H   Hu Shiya S   Liu Jie J   Zhu Qing Q   Zhang Shaowei S  

Nanomaterials (Basel, Switzerland) 20190731 8


Hierarchical porous carbon was successfully synthesized from glucose in a molten salt at 800 °C for 2 h. It was amorphous and contained numerous oxygen containing functional groups on its surface. The porous carbon with 1.0 wt% Fe(NO<sub>3</sub>)<sub>3</sub>·9H<sub>2</sub>O oxidizing agent showed the highest specific surface area of 1078 m<sup>2</sup>/g, and the largest pore volume of 0.636 cm<sup>3</sup>/g, among all of the samples. Raman and TEM results revealed that it had more defects and po  ...[more]

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