Hydrogen-bonding-driven self-assembly nonporous adaptive crystals for the separation of benzene from BTX and cyclohexane |
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| Affiliation: | 1. Department of Biology and Chemistry, Hunan University of Science and Engineering, Yongzhou 425199, China;2. School of Chemistry and Chemical Engineering Nanjing University, Nanjing 210023, China;1. Department of Geriatrics, Sichuan Academy of Medical Sciences & Sichuan Provincial People''s Hospital, Chengdu 610072, China;2. Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu 610041, China;3. Department of Infection Management, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China;4. Department of Radiation Oncology, Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China;5. Department of Pharmacy, West China Second University Hospital of Sichuan University, Chengdu 610041, China;6. Pharmaceutical Department, Chongqing University Three Gorges Hospital, Chongqing 404000, China;1. School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China;2. Department of Chemistry, Maynooth University, National University of Ireland, Maynooth, Co. Kildare, Ireland;3. Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China;1. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, China;2. School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China;1. School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China;2. Department of Chemistry, Maynooth University, National University of Ireland, Maynooth, Co. Kildare, Ireland;3. State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China |
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| Abstract: | Benzene is a volatile organic compound that can seriously harm human health, while it can serve as a precursor to produce chemicals of more complex structures in chemical industry. Capturing benzene using adsorbents is of great importance for human health, when the separation of hydrocarbons including benzene from crude oil was referred to as one of the “seven chemical separations to change the world”. In this work, we reported the efficient and selective separation of benzene from BTX and cyclohexane by hydrogen bonding self-assembly nonporous adaptive crystals AdaOH for the first time under mild and user-friendly conditions. Separation of benzene and cyclohexane (v/v = 1:1) can be achieved by AdaOH with a purity of benzene up to 96.8%. Separation of BTX (v/v; benzene:toluene:o-xylene:m-xylene:p-xylene= 1:1:1:1:1) can be achieved by AdaOH with a purity of benzene increased from 20% to 82.9%. Our results suggest that separation of benzene using the activated AdaOH as a non-porous adaptive crystal for selectively and efficiently capturing benzene can solve the challenge in separation of benzene from other chemicals such as cyclohexane in chemical industry, and can be helpful for removal of benzene that is released from the vehicles to air. The advantages of commercially availability, easy preparation, high separation efficiency and selectivity for benzene might endow this material with enormous potential for practical uses in areas like petrochemical industry. |
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