摘要
首先制备了嫁接氨基的均苯三甲酸,同时以其为原料通过溶剂热法合成了金属有机框架材料Cu_3(NH_2BTC)_2,利用XRD、N_2吸附-脱附、热重、红外、原位红外分析等表征手段对吸附剂进行了表征,并通过固定床测量穿透曲线的方法研究其CO_2吸附性能。结果表明,氨基被成功引入Cu_3(BTC)_2骨架中。氨基修饰的Cu_3(BTC)_2对CO_2有着较高的吸附容量,在10 kPa,50℃的条件下CO_2吸附量为1.41 mmol/g,这源于材料对于CO_2同时存在着物理吸附和化学吸附。
The metal-organic framework of Cu 3(NH 2BTC) 2 was synthesized by solvothermal method with the prepared grafted amine-based trimesic acid as organic ligand. The synthesized adsorbent was characterized by XRD, N 2 adsorption-desorption, thermogravimetry, FT-IR and in-situ FT-IR. The performance of the CO 2 adsorption was studied by the breakthrough curve based on the fixed-bed reactor. The results showed that the amine groups had been successfully grafted into the skeleton of Cu 3(BTC) 2. The CO 2 adsorption capacity of Cu 3(NH 2BTC) 2 was improved to 1.41 mmol/g at 10 kPa and 50 ℃. The improvement of CO 2 uptake might due to the effect of both the physical and chemical adsorption of CO 2.
作者
鲁雪婷
蒲彦锋
李磊
赵宁
王峰
肖福魁
LU Xue-ting;PU Yan-feng;LI Lei;ZHAO Ning;WANG Feng;XIAO Fu-kui(State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China;University of Chinese Academy of Sciences, Beijing 100049, China)
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
2019年第3期338-343,I0006,共7页
Journal of Fuel Chemistry and Technology
基金
国家自然科学基金(21306217
21776294)
山西省煤基重点科技攻关项目(MD2014-09)
山西省自然科学基金(201601D102006
201801D121070)资助~~
