Hydrogen,as a clean and sustainable energy source,is of great significance in addressing energy crises and environmental issues.Microorganisms such as Escherichia coli(E.coli)are commonly used to produce hydrogen due ...Hydrogen,as a clean and sustainable energy source,is of great significance in addressing energy crises and environmental issues.Microorganisms such as Escherichia coli(E.coli)are commonly used to produce hydrogen due to their high efficiency,wide choice of substrates,and fast growth rate.However,the hydrogenase in E.coli can only be activated to produce hydrogen under anaerobic conditions,which greatly limits its practical application as a hydrogen producing microorganism.Herein,we report a strategy to construct E.coli@ZIF-8 micro-nano reactors(MNRs).展开更多
By introducing a new‘V’-like bis-pyridine-bis-amide ligand 4,4’-bis(4-pyridinecarboxamide)phenylmethane(L)into the reaction system based on Anderson-type polyoxometalates[XMo_(6)(OH)_(6)O_(18)]^(3-)(X=Al or Cr),fou...By introducing a new‘V’-like bis-pyridine-bis-amide ligand 4,4’-bis(4-pyridinecarboxamide)phenylmethane(L)into the reaction system based on Anderson-type polyoxometalates[XMo_(6)(OH)_(6)O_(18)]^(3-)(X=Al or Cr),four metal-organic complexes(MOCs)1-4,[Zn(HL)(H_(2)O)_(2)(XMo_(6)(OH)_(6)O_(18))]·5H_(2)O(1:X=Al;2:X=Cr),[Co(HL)(H_(2)O)_(2)(XMo_(6)(OH)_(6)O_(18))]·5H_(2)O(3:X=Al;4:X=Cr),have been prepared under solvothermal conditions,which have been characterized by single crystal X-ray diffraction,IR spectra,and PXRD.All structures of 1-4 involved a 2D layer that originated from XMo_(6)polyoxoanions and metal ions,on both sides of which the L ligands were hanged.Complexes 1-4 showed not only outstanding selective adsorption capacities for organic dyes crystal violet,methylene blue and neutral red,but also electrochemical sensing behaviors toward Cr(Ⅵ)ions and Fe(Ⅲ)ions with well-pleasing limits of detection of 0.606 nM(6.24×10^(-5)ppm)and 0.0192μM(1.08×10^(-3)ppm),suggesting their potential application as multifunctional materials.展开更多
基金supported by the National Natural Science Foundation of China(22205100,22375091,and 21971114)the Jiangsu Provincial Funds for Natural Science Foundation(BK20200090).
文摘Hydrogen,as a clean and sustainable energy source,is of great significance in addressing energy crises and environmental issues.Microorganisms such as Escherichia coli(E.coli)are commonly used to produce hydrogen due to their high efficiency,wide choice of substrates,and fast growth rate.However,the hydrogenase in E.coli can only be activated to produce hydrogen under anaerobic conditions,which greatly limits its practical application as a hydrogen producing microorganism.Herein,we report a strategy to construct E.coli@ZIF-8 micro-nano reactors(MNRs).
基金financially supported by the National Natural Science Foundation of China(no.21971024,21771025,21671025)the Liao Ning Revitalization Talents Program(XLYC1902011).
文摘By introducing a new‘V’-like bis-pyridine-bis-amide ligand 4,4’-bis(4-pyridinecarboxamide)phenylmethane(L)into the reaction system based on Anderson-type polyoxometalates[XMo_(6)(OH)_(6)O_(18)]^(3-)(X=Al or Cr),four metal-organic complexes(MOCs)1-4,[Zn(HL)(H_(2)O)_(2)(XMo_(6)(OH)_(6)O_(18))]·5H_(2)O(1:X=Al;2:X=Cr),[Co(HL)(H_(2)O)_(2)(XMo_(6)(OH)_(6)O_(18))]·5H_(2)O(3:X=Al;4:X=Cr),have been prepared under solvothermal conditions,which have been characterized by single crystal X-ray diffraction,IR spectra,and PXRD.All structures of 1-4 involved a 2D layer that originated from XMo_(6)polyoxoanions and metal ions,on both sides of which the L ligands were hanged.Complexes 1-4 showed not only outstanding selective adsorption capacities for organic dyes crystal violet,methylene blue and neutral red,but also electrochemical sensing behaviors toward Cr(Ⅵ)ions and Fe(Ⅲ)ions with well-pleasing limits of detection of 0.606 nM(6.24×10^(-5)ppm)and 0.0192μM(1.08×10^(-3)ppm),suggesting their potential application as multifunctional materials.
