摘要
用配位调控法在室温下制备了配位聚合物材料Cu_3(BTC)_2。通过粉末XRD、SEM、N_2吸附、TGA等手段对样品的物相、形貌和比表面积及热稳定性进行了表征。结果表明,制备的配位聚合物材料Cu_3(BTC)_2为球形纳米颗粒,BET比表面积为1 183m^2/g。考察了Cu_3(BTC)_2对活性大红染料废水的处理效果,探讨了吸附剂加入量、pH值、活性大红初始浓度及反应时间对吸附过程的影响。结果表明,吸附剂Cu_3(BTC)_2对活性大红染料具有较高的吸附性能,平衡吸附量可达83.33mg/g。吸附等温线拟合结果较好的符合Langmuir模型,动力学研究结果表明吸附过程符合准二级动力学模型。
Coordination polymer material Cu 3（BTC） 2 was synthesized at room temperature using coordination modulation method. The phase composition, morphology, surface area and thermal stability of the samples were characterized by XRD, SEM, N 2 sorption measurements and TGA. The results indicate that the Cu 3（BTC） 2 samples were nano particles and the BET surface area was 1 183 m 2/g. The adsorbent activities of the samples were evaluated for the removal of active red dye from waste water. The influences of adsorbent amount, pH value, initial concentration and reaction time on the adsorption performance were investigated. The results suggest that the as-synthesized Cu 3（BTC） 2 exhibits good adsorption property for active red dye. The equilibrium adsorption capacity can reach 83.33 mg/g. The adsorption isotherm model accords with the Langmuir isotherm model and the kinetic analysis reveals that the adsorption process is well-matched with the pseudo-second-order model.
作者
那立艳
张丽影
张凤杰
华瑞年
NA Liyan;ZHANG Liying;ZHANG Fengjie;HUA Ruinian(College of Life Science,Dalian Minzu University,Dalian 116600,China;College of Environment and Bioresources,Dalian Minzu University,Dalian 116600,China)
出处
《功能材料》
EI
CAS
CSCD
北大核心
2018年第6期179-183,共5页
Journal of Functional Materials
基金
国家自然科学基金资助项目(31770502)
辽宁省自然科学基金资助项目(201602203)
