| 醇胺改性氧化石墨烯的制备及二氧化硫吸附性能 |
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| 引用本文： | 李金伟,黄莉兰,辛清萍,叶卉,赵莉芝,丁晓莉,林立刚,王少飞,张玉忠.醇胺改性氧化石墨烯的制备及二氧化硫吸附性能[J].材料导报,2018,32(8):1224-1229, 1246. |
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| 作者姓名： | 李金伟 黄莉兰 辛清萍 叶卉 赵莉芝 丁晓莉 林立刚 王少飞 张玉忠 |
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| 作者单位： | 天津工业大学材料科学与工程学院,省部共建分离膜与膜过程国家重点实验室,天津300387 |
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| 基金项目： | 国家自然科学基金(21676201 |
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| 摘 要： | 固体吸附剂在烟道气脱硫方面具有很大的潜力。以氧化石墨烯(GO)为基底材料,通过乙醇胺(MEA)、二乙醇胺(DEA)和三乙醇胺(TEA)对氧化石墨烯进行改性,得到了GO-MEA、GO-DEA和GO-TEA三种用于吸附SO_2的固体吸附剂。利用扫描电镜(SEM)、傅里叶变换红外光谱(FT-IR)、X射线光电子能谱(XPS)、能量色散X射线能谱(EDS)、元素分析(EA)等手段对其进行表征,并采用称重法测定了醇胺改性氧化石墨烯对SO_2气体的吸附性能。结果表明,醇胺改性氧化石墨烯对SO_2的吸附性能相比未改性氧化石墨烯有较大提高,其中GO-DEA的SO_2吸附性能最好,15h后平衡吸附量达到188.5mg/g。在130℃、真空条件下进行解吸,经过五次循环之后吸附量依然保持在165.3mg/g。
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| 关 键 词： | 氧化石墨烯 醇胺 SO2 吸附 graphene oxide alcoholamine SO2 adsorption |
Preparation of Alcoholamine-modified Graphene Oxide with an Application to Sulfur Dioxide Adsorption |
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| LI Jinwei,HUANG Lilan,XIN Qingping,YE Hui,ZHAO Lizhi,DING Xiaoli,LIN Ligang,WANG Shaofei and ZHANG Yuzhong.Preparation of Alcoholamine-modified Graphene Oxide with an Application to Sulfur Dioxide Adsorption[J].Materials Review,2018,32(8):1224-1229, 1246. |
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| Authors: | LI Jinwei HUANG Lilan XIN Qingping YE Hui ZHAO Lizhi DING Xiaoli LIN Ligang WANG Shaofei and ZHANG Yuzhong |
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| Affiliation: | State Key Laboratory of Separation Membranes and Membranes Processes, School of Material Science and Engineering,Tianjin Polytechnic University, Tianjin 300387,State Key Laboratory of Separation Membranes and Membranes Processes, School of Material Science and Engineering,Tianjin Polytechnic University, Tianjin 300387,State Key Laboratory of Separation Membranes and Membranes Processes, School of Material Science and Engineering,Tianjin Polytechnic University, Tianjin 300387,State Key Laboratory of Separation Membranes and Membranes Processes, School of Material Science and Engineering,Tianjin Polytechnic University, Tianjin 300387,State Key Laboratory of Separation Membranes and Membranes Processes, School of Material Science and Engineering,Tianjin Polytechnic University, Tianjin 300387,State Key Laboratory of Separation Membranes and Membranes Processes, School of Material Science and Engineering,Tianjin Polytechnic University, Tianjin 300387,State Key Laboratory of Separation Membranes and Membranes Processes, School of Material Science and Engineering,Tianjin Polytechnic University, Tianjin 300387,State Key Laboratory of Separation Membranes and Membranes Processes, School of Material Science and Engineering,Tianjin Polytechnic University, Tianjin 300387 and State Key Laboratory of Separation Membranes and Membranes Processes, School of Material Science and Engineering,Tianjin Polytechnic University, Tianjin 300387 |
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| 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 SO2adsorption capacities of the three types of alcoholamine-immobilized GOs compared to ordinary GO.In particular,GO-DEA exhibits promising adsorption performance to-ward 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 de-sorption was processed under vacuum at 130 ℃. |
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| Keywords: | graphene oxide alcoholamine SO2 adsorption |
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