Efficient Removal of Cr(VI) from Aqueous Solution on the Hierarchical Porous N-Doped Carbon Derived from Soft Wood

doi:10.21127/yaoyigc20180024

General Chemistry ›› 2019, Vol. 5 ›› Issue (2): 180024-180024.DOI: 10.21127/yaoyigc20180024

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Efficient Removal of Cr(VI) from Aqueous Solution on the Hierarchical Porous N-Doped Carbon Derived from Soft Wood

Ruiqi Li^a, Wei Shi^a, Yiran Lu^b, Di Hu^a, Kai Yan^{a, *}

a Guangdong Provincial Key Laboratory of Environmental Pollution and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, Guangzhou 510275, China;
b School of Engineering, Brown University, Providence, RI02912, the United States

Received:2018-09-24 Online:2019-06-29 Published:2019-06-27
Supported by:
Email: yank9@mail.sysu.edu.cn (K. Y.)

Abstract

Abstract: Efficient removal of Cr(VI) is one of challenges in wastewater treatment and remediation. The hierarchical porous N-doped carbon derived from renewable soft wood is facilely fabricated by a solvo-hydrothermal method and utilized to remove Cr(VI) efficiently. The as-obtained N-doped carbon exhibits hierarchical porous structure and large specific surface area of 324.2 cm²/g. The fabricated N-doped porous carbon can rapidly and efficiently adsorb Cr(VI) in 1 h and the adsorption process follows the pseudo-second-order model. The high adsorption capacity of 182.8 mg/g based on Langmuir model, and it is competitive with other carbon materials reported to date. Besides, the hierarchical porous carbon is easy to be recycled and the adsorption performance maintains stable over five runs.

Key words: soft wood, porous N-doped carbon, Cr(VI) removal, high adsorption

Ruiqi Li, Wei Shi, Yiran Lu, Di Hu, Kai Yan. Efficient Removal of Cr(VI) from Aqueous Solution on the Hierarchical Porous N-Doped Carbon Derived from Soft Wood[J]. General Chemistry, 2019, 5(2): 180024-180024.

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Efficient Removal of Cr(VI) from Aqueous Solution on the Hierarchical Porous N-Doped Carbon Derived from Soft Wood

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