Preparation of Alcoholamine-modified Graphene Oxide with an Application to Sulfur Dioxide Adsorption
LI Jinwei, HUANG Lilan, XIN Qingping, YE Hui, ZHAO Lizhi, DING Xiaoli,
LIN Ligang, WANG Shaofei, ZHANG Yuzhong
State Key Laboratory of Separation Membranes and Membranes Processes, School of Material Science and Engineering,Tianjin Polytechnic University, Tianjin 300387
Abstract: Solid adsorbent has displayed great application potential in the field of flue gas desulfurization. In this study, using GO as substrate material and the alcoholamines such as ethanolamine (MEA), diethanolamine (DEA) and triethanolamine (TEA) as modifiers, we prepared GO-MEA,GO-DEA and GO-TEA as adsorbents for SO2, and conducted the characterization by means of scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray spectrometry (EDS) and elemental analysis (EA). The SO2adsorption capacities of the products were also determined by gravimetric method. Our experiment validated the significantly improved SO2 adsorption capacities of the three types of alcoholamine-immobilized GOs compared to ordinary GO. In particular, GO-DEA exhibits promising adsorption performance toward SO2, as the equilibrium adsorption capacity within 15 h is 188.5 mg/g initially and 165.3 mg/g after five cycles in which the desorption was processed under vacuum at 130 ℃.
1 Xiong Y W. Harm of SO2 pollution and progress of its control techniques in our country[J].Ming Safety & Environmental Protection,2000,27(3):37(in Chinese). 熊云威.我国SO2污染危害及其治理技术的进展[J].矿业安全与环保,2000,27(3):37. 2 Pan D, Yu R, Bao J, et al. Emission and formation characteristics of aerosols from ammonia-based wet flue gas desulfurization[J].Energy & Fuels,2015,30(1):666. 3 Zhang Y, Gao Y H, Wang G D, et al. Seawater flue gas desulfurization and post-desulfurization seawater recovery[C]∥Advanced Materials Research. Switzerland: Trans Tech Publications,2011:662. 4 Lee K T, Bhatia S, Mohamed A R, et al. Optimizing the specific surface area of fly ash-based sorbents for flue gas desulfurization[J].Chemosphere,2006,62(1):89. 5 Rajendra S, Raghunath C V, Mondal M K. New experimental data for absorption of SO2 into DMA solution[J].Environmental Progress & Sustainable Energy,2016,35(5):1298. 6 Zhao Y, Zhang X, Zhen Y, et al. Novel alcamines ionic liquids based solvents: Preparation, characterization and applications in carbon dioxide capture[J].International Journal of Greenhouse Gas Control,2011,5(2):367. 7 Tailor R, Ahmadalinezhad A, Sayari A. Selective removal of SO2 over tertiary amine-containing materials[J].Chemical Engineering Journal,2014,240:462. 8 Khatri R A, Chuang S S C, Soong Y, et al. Thermal and chemical stability of regenerable solid amine sorbent for CO2 capture[J].Energy & Fuels,2006,20(4):1514. 9 Gadipelli S, Guo Z X. Graphene-based materials: Synthesis and gas sorption, storage and separation[J].Progress in Materials Science,2015,69:1. 10 Chen D, Feng H, Li J. Graphene oxide: Preparation, functionalization, and electrochemical applications[J].Chemical Reviews,2012,112(11):6027. 11 Seredych M, Bandosz T J. Effects of surface features on adsorption of SO2 on graphite oxide/Zr(OH)4 composites[J].The Journal of Physical Chemistry C,2010,114(34):14552. 12 Long Y, Zhang C, Wang X, et al. Oxidation of SO2 to SO3catalyzed by graphene oxide foams[J].Journal of Materials Chemistry,2011,21(36):13934. 13 Hummers Jr W S, Offeman R E. Preparation of graphitic oxide[J].Journal of the American Chemical Society,1958,80(6):1339. 14 Yang H, Zhao X J, Zhao J G. Preparation and structural characte-rization of graphene oxide by pressurized oxidation[J].Journal of Shanxi Datong University (Natural Science Edition),2014,30(6):39(in Chinese). 杨辉,赵小娟,赵建国.氧化石墨烯制备及其结构表征[J].山西大同大学学报:自然科学版,2014,30(6):39. 15 Wan W, Li L, Zhao Z, et al. Ultrafast fabrication of covalently cross-linked multifunctional graphene oxide monoliths[J].Advanced Functional Materials,2014,24(31):4915. 16 王保安, 刘梅. 胺类化合物的碱性强弱顺序[J].焦作师范高等专科学校学报,2003,19(4):58. 17 Liu X L, Guo J X, Chu Y H, et al. Desulfurization performance of iron supported on activated carbon[J].Fuel,2014,123:93. 18 Zhao L, Bi S, Pei J, et al. Adsorption performance of SO2 over ZnAl2O4 nanospheres[J].Journal of Industrial and Engineering Chemistry,2016,41:151. 19 Lee H J, Lee K I, Kim M, et al. Diamine-anchored polystyrene re-sins for reversible SO2 adsorption[J].ACS Sustainable Chemistry & Engineering,2016,4(4):2012. 20 Yun S, Lee H, Lee W E, et al. Multiscale textured, ultralight graphene monoliths for enhanced CO2 and SO2 adsorption capacity[J].Fuel,2016,174:36.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2018, Vol. 32 
