We used the surface-pretreated graphite paper(Gp)as a carrier and loaded BiOCl with high selectivity to Cl^(-)on its surface by solvothermal method to form BiOCl@Gp electrode.The morphology,structure,and composition o...We used the surface-pretreated graphite paper(Gp)as a carrier and loaded BiOCl with high selectivity to Cl^(-)on its surface by solvothermal method to form BiOCl@Gp electrode.The morphology,structure,and composition of the materials were characterized by scanning electron microscopy and nitrogen adsorption/desorption,and the results showed that the spherical BiOCl particles were uniformly dispersed on the surface of the Gp,forming a mesoporous BiOCl@Gp composite with a specific surface area of 22.82 m^(2)/g and a pore volume of 0.043 cm3/g.Furthermore,cyclic voltammetry and electrochemical impedance spectroscopy were used to test the electrochemical properties of the composites,and the stability of BiOCl and the high conductivity of Gp were synergistic,the BiOCl@Gp exhibited a specific capacitance of 30.2 F·g^(-1) at a current density of 0.5 A·g^(-1),and the selectivity of the BiOCl@Gp materials for Cl^(-)was significantly higher than that of SO_(4)^(2-),NO_(2)^(-),and HCO_(3)^(-).Therefore,BiOCl@Gp composite electrode materials can be used for the selective adsorption of Cl^(-)in wastewater,in order to achieve efficient wastewater recycling.展开更多
以廉价易得的三聚氰胺(Melamine,MA)和间苯二甲醛(Isophthalaldehyde,IA)为原料,加热回流一步反应制备三聚氰胺基多孔聚合物,又称Schiff基网状聚合物(Schiff base Net Works,SNW)。探索了SNW对Pb^(2+)的吸附性能,讨论了pH值、吸附时间、...以廉价易得的三聚氰胺(Melamine,MA)和间苯二甲醛(Isophthalaldehyde,IA)为原料,加热回流一步反应制备三聚氰胺基多孔聚合物,又称Schiff基网状聚合物(Schiff base Net Works,SNW)。探索了SNW对Pb^(2+)的吸附性能,讨论了pH值、吸附时间、Pb^(2+)的初始浓度、吸附剂用量等对SNW吸附性能的影响;并通过IR、TG、BET对SNW进行分析表征。实验表明,多孔材料在pH为7左右时对Pb^(2+)的吸附效果最好,吸附剂的量加入越多吸附效果越好,吸附时间为2h时吸附达到饱和状态。展开更多
基金Funded by the National Natural Science Foundation of China(No.52072180)the Graduate Research and Innovation Projects of Jiangsu Province(No.KYCX21_3461)。
文摘We used the surface-pretreated graphite paper(Gp)as a carrier and loaded BiOCl with high selectivity to Cl^(-)on its surface by solvothermal method to form BiOCl@Gp electrode.The morphology,structure,and composition of the materials were characterized by scanning electron microscopy and nitrogen adsorption/desorption,and the results showed that the spherical BiOCl particles were uniformly dispersed on the surface of the Gp,forming a mesoporous BiOCl@Gp composite with a specific surface area of 22.82 m^(2)/g and a pore volume of 0.043 cm3/g.Furthermore,cyclic voltammetry and electrochemical impedance spectroscopy were used to test the electrochemical properties of the composites,and the stability of BiOCl and the high conductivity of Gp were synergistic,the BiOCl@Gp exhibited a specific capacitance of 30.2 F·g^(-1) at a current density of 0.5 A·g^(-1),and the selectivity of the BiOCl@Gp materials for Cl^(-)was significantly higher than that of SO_(4)^(2-),NO_(2)^(-),and HCO_(3)^(-).Therefore,BiOCl@Gp composite electrode materials can be used for the selective adsorption of Cl^(-)in wastewater,in order to achieve efficient wastewater recycling.
文摘以廉价易得的三聚氰胺(Melamine,MA)和间苯二甲醛(Isophthalaldehyde,IA)为原料,加热回流一步反应制备三聚氰胺基多孔聚合物,又称Schiff基网状聚合物(Schiff base Net Works,SNW)。探索了SNW对Pb^(2+)的吸附性能,讨论了pH值、吸附时间、Pb^(2+)的初始浓度、吸附剂用量等对SNW吸附性能的影响;并通过IR、TG、BET对SNW进行分析表征。实验表明,多孔材料在pH为7左右时对Pb^(2+)的吸附效果最好,吸附剂的量加入越多吸附效果越好,吸附时间为2h时吸附达到饱和状态。
