Few-layered mesoporous graphene for high-performance toluene adsorption and regeneration
Date
2019
Authors
Wang, Y.
Li, Z.
Tang, C.
Ren, H.
Zhang, Q.
Xue, M.
Xiong, J.
Wang, D.
Yu, Q.
He, Z.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Environmental Science: Nano, 2019; 6(10):3113-3122
Statement of Responsibility
Yaling Wang, Zehui Li, Cheng Tang, Haixia Ren, Qiang Zhang, Mo Xue, Jin Xiong, Dongbin Wang, Qian Yu, Zhiyuan He, Fei Wei and Jingkun Jiang
Conference Name
Abstract
The benzene series is one type of volatile organic compounds (VOCs) which causes significant health and environmental issues. Adsorption is an energy-efficient technique for VOC treatment. With a combination of strong π–π interaction with the benzene series, large specific surface area (SSA), tunable nanostructure hierarchy and favourable hydrophobicity, three-dimensional porous graphene materials are potentially favorable for high adsorption capacity, low-energy regeneration and good resistance to high humidity. In this work, few-layered mesoporous graphene (FLMG) with a large SSA (1990 m² g⁻¹) is constructed by chemical vapor deposition on porous magnesium oxide templates. The as-prepared mesoporous graphene presents a high adsorption capacity (260.0 mg g⁻¹) for toluene at low toluene concentration (∼120 ppm) and a high desorption ratio of 92% for regeneration even at mild heating conditions of 95 °C. Additionally, FLMG preserves 80.1% of the initial adsorption capacity even under high humidity (78%). The good adsorption performance of FLMG is due to its high SSA and high mesoporosity, which render a stronger adsorption ability, a larger adsorption accommodation and a more facile desorption behaviour. This work illustrates the further development of advanced graphene materials for enhanced VOC treatment and other environmental applications.
School/Discipline
Dissertation Note
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Description
Print edition (ISSN 2051-8153) is obsolete. eISSN entered is active
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This journal is © The Royal Society of Chemistry 2019