Alizarin,extracted from rubia cordifolia,is a green natural dye.However,its application has been limited by its poor water solubility and pH sensitivity.In this study,linear sulfonic anionic surfactant(LAS)had been st...Alizarin,extracted from rubia cordifolia,is a green natural dye.However,its application has been limited by its poor water solubility and pH sensitivity.In this study,linear sulfonic anionic surfactant(LAS)had been studied as a new dispersant,which promoted the dyeing of alizarin on fabrics under mild conditions.Ultraviolet visible(UV-vis)spectra and Fourier transform infrared(FTIR)spectra confirmed appropriate bonding between alizarin and LAS,and the nano particle size analysis showed that LAS could promote the dispersion of alizarin in aqueous solution.Under the optimized condition of alizarin 4.8%on mass of fabric(omf)and LAS solution 2×10^(-2)mol/L,the fabrics were dyed with alizarin at room temperature and pH neutral conditions.The dyed fabrics had good washing fastness and ironing fastness.展开更多
Organic moieties-derived salts with permanent porosity and polarized channels have shown unique features and attractive performance in the field of adsorption,separation,and conduction.However,state-of-the-art organic...Organic moieties-derived salts with permanent porosity and polarized channels have shown unique features and attractive performance in the field of adsorption,separation,and conduction.However,state-of-the-art organic salts generally rely on ionic interaction and hydrogen bonding formation to maintain the porous channels.The synthesis of organic moiety-derived saltswith permanent accessible pores even after removal of the trapped guest molecules,and without the constraint of hydrogen bonding formation still remains a great challenge.Herein,we present an expeditious construction pathway to generate hierarchically nanoporous barium salts without hydrogen bonding formation.The strong ionic interaction of the bariumcation and sulfonate anions led to rapid reaction equilibrium(∼2 min),affording diverse barium-derived ionic polymer(Ba-IP)with permanent porosity and highly polarized channels.The produced Ba-IP materials with abundant cations and anions displayed high CO_(2)/N2 and CO_(2)/CH_(4)separation performance,with the selectivities reaching up to 89.5 and 280,respectively,at 273 K,surpassingmost of the organic polymers functionalized by ionic moieties.展开更多
基金National Key Research&Development Program of China(No.2017YFB0309100)。
文摘Alizarin,extracted from rubia cordifolia,is a green natural dye.However,its application has been limited by its poor water solubility and pH sensitivity.In this study,linear sulfonic anionic surfactant(LAS)had been studied as a new dispersant,which promoted the dyeing of alizarin on fabrics under mild conditions.Ultraviolet visible(UV-vis)spectra and Fourier transform infrared(FTIR)spectra confirmed appropriate bonding between alizarin and LAS,and the nano particle size analysis showed that LAS could promote the dispersion of alizarin in aqueous solution.Under the optimized condition of alizarin 4.8%on mass of fabric(omf)and LAS solution 2×10^(-2)mol/L,the fabrics were dyed with alizarin at room temperature and pH neutral conditions.The dyed fabrics had good washing fastness and ironing fastness.
基金The research was supported financially by the Division of Chemical Sciences,Geosciences,and Biosciences,Office of Basic Energy Sciences,US Department of Energy.
文摘Organic moieties-derived salts with permanent porosity and polarized channels have shown unique features and attractive performance in the field of adsorption,separation,and conduction.However,state-of-the-art organic salts generally rely on ionic interaction and hydrogen bonding formation to maintain the porous channels.The synthesis of organic moiety-derived saltswith permanent accessible pores even after removal of the trapped guest molecules,and without the constraint of hydrogen bonding formation still remains a great challenge.Herein,we present an expeditious construction pathway to generate hierarchically nanoporous barium salts without hydrogen bonding formation.The strong ionic interaction of the bariumcation and sulfonate anions led to rapid reaction equilibrium(∼2 min),affording diverse barium-derived ionic polymer(Ba-IP)with permanent porosity and highly polarized channels.The produced Ba-IP materials with abundant cations and anions displayed high CO_(2)/N2 and CO_(2)/CH_(4)separation performance,with the selectivities reaching up to 89.5 and 280,respectively,at 273 K,surpassingmost of the organic polymers functionalized by ionic moieties.
