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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(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 po ...[more]

PMID: 31370302

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