| Title: | Preparation of Carbon-Silicon Doping Composite Adsorbent Material for Removal of VOCs |
| Author(s): | Han Z; Kong S; Sui H; Li X; Zhang Z; |
| Address: | "School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China. National Engineering Research Centre of Distillation Technology, Tianjin 300072, China. Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China. kslofcumt@163.com. National Engineering Research Centre of Distillation Technology, Tianjin 300072, China. kslofcumt@163.com. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China. suihong@tju.edu.cn. National Engineering Research Centre of Distillation Technology, Tianjin 300072, China. suihong@tju.edu.cn. Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China. suihong@tju.edu.cn. Department of Chemical and Biological Engineering, University of Ottawa, Ottawa, ON K1N 6N5, Canada" |
| ISSN/ISBN: | 1996-1944 (Print) 1996-1944 (Electronic) 1996-1944 (Linking) |
| Abstract: | "The adsorption-desorption combined process has been considered as a promising method for the industrial VOCs (volatile organic compounds) treatment. Herein, a carbon-silicon composite adsorbent material has been prepared for the removal of VOCs at lower potential flammable risk. The preparation involves two main steps: Extrusion forming and thermal treatment. The carboxymethyl cellulose and silicate were adopted as binder and fire retardant respectively. The molding and inflaming retarding mechanisms were proposed and discussed. Results show that the newly prepared doping combined material is micro-mesoporous with a specific surface area of 729 m(2)/g. The maximum adsorption capacity of carbon-silicon doping combined material to p-xylene is observed to be 292 mg/g. The adsorption is found to be favorable, which is well described by the Yoon-Nelson model and Freundlich isotherm. The combined material is also found to possess reversible adsorption to p-xylene; without sacrificing (<2%) too much adsorption capacity after five adsorption-desorption cycles. The composite materials have an increased ignition temperature of at least 40 degrees C compared with raw carbon material. These findings suggest that the obtained composite material possesses good adsorption capacity and flame-retardant properties" |
| Keywords: | VOCs activated carbon carbon-silicon composite carboxymethyl cellulose dynamic adsorption p-xylene; |
| Notes: | "PubMed-not-MEDLINEHan, Zhenwei Kong, Shunli Sui, Hong Li, Xingang Zhang, Zisheng eng 2018YFC1902104/National Key R&D Program of China/ 17ZXSTSF00070/Science and Technology Program of Tianjin, China/ 18JCQNJC06500/Municipal Natural Science Foundation of Tianjin/ Switzerland 2019/08/03 Materials (Basel). 2019 Jul 31; 12(15):2438. doi: 10.3390/ma12152438" |
