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Synthesis of Hierarchical Porous Carbon in Molten Salt and Its Application for Dye Adsorption
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(3))(3)·9H(2)O oxidizing agent showed the highest specific surface...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6723312/ https://www.ncbi.nlm.nih.gov/pubmed/31370302 http://dx.doi.org/10.3390/nano9081098 |
Sumario: | 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(3))(3)·9H(2)O oxidizing agent showed the highest specific surface area of 1078 m(2)/g, and the largest pore volume of 0.636 cm(3)/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. |
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