A microwave synthesized mesoporous carbon sponge as an efficient adsorbent for Cr(vi) removal. Issue 14 (19th February 2018)

• Record Type: Journal Article
• Authors: Liu, Yan-Jun; Liu, Shan; Li, Zhi-Wen; Ma, Ming-Guo; Wang, Bo
• Is Part Of: RSC advances. Volume 8:Issue 14(2018)
• Page Start: 7892
• Page End: 7898
• Publication Date: 2018-02-19
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c8ra00012c
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Mesoporous carbon sponge (MCS) is successfully prepared from a supramolecular microcrystalline cellulose–polymer system triggered by microwave-assisted treatment. The MCS exhibits high adsorption capacity for fast Cr(vi ) removal within 5 min. Abstract : Mesoporous carbon materials have recently attracted immense research interest because of their potential application in water purification fields. Herein, we report the synthesis of a mesoporous carbon sponge (MCS) from a supramolecular microcrystalline cellulose–polymer system triggered by microwave-assisted treatment. Benefiting from the three-dimensional (3D) interconnected mesopores and an evenly distributed ball-like protuberance on the inner surfaces of the macropores, the MCS exhibited a high adsorption capacity (93.96 mg g −1 ) for fast Cr(vi ) removal within 5 min. Additionally, the MCS can be regenerated and reused after the adsorption–desorption process, and maintained an adsorption capacity of ∼86% after 10 cycles. The high adsorption capacity, significantly reduced treatment time, and reusability make the MCS promising for the purification of wastewater on a large scale.