The NaAlO_2,Na_2SiO_3-9H_2O,NaOH and CsOH·H_2O were used as raw materials to synthesize Cs-doped sodahte samples by a chemical synthetic approach.The effects of different Cs doping contents on structural and UV-p...The NaAlO_2,Na_2SiO_3-9H_2O,NaOH and CsOH·H_2O were used as raw materials to synthesize Cs-doped sodahte samples by a chemical synthetic approach.The effects of different Cs doping contents on structural and UV-photochromic properties of sodalite were investigated.The results suggested that the maximum doping content of Cs in sodalite was about 2.9%,and the impure phase CsAlSiO_4·H_2O arose exceeding the doping content.The lattice parameters(a and v) of sodalite decreased integrally due to the effect of hydrated Cs ions on sodalite lattice.Meanwhile,the surface morphology of Cs-doped sodalite consisted of petal shaped aggregated particles at the maximum Cs doping content,which was basically similar as pristine sodalite.In addition,the ultraviolet(UV) absorptance of the Cs-doped sodalite,compared with pure sodalite,increased about 1.3%-2.3%from 225 to 280 nm and about 1.8%-2.8%from 280 to 350 nm,respectively.展开更多
基金sponsored by National Natural Science Foundation(China)(41372052)Innovation Funds of Southwest University of Science and Technology (Sichuan Province,China)(14ycx028)Key Laboratory of Solid Waste Treatment and Resource Recycling Ministry of Education(Sichuan Province,China)
文摘The NaAlO_2,Na_2SiO_3-9H_2O,NaOH and CsOH·H_2O were used as raw materials to synthesize Cs-doped sodahte samples by a chemical synthetic approach.The effects of different Cs doping contents on structural and UV-photochromic properties of sodalite were investigated.The results suggested that the maximum doping content of Cs in sodalite was about 2.9%,and the impure phase CsAlSiO_4·H_2O arose exceeding the doping content.The lattice parameters(a and v) of sodalite decreased integrally due to the effect of hydrated Cs ions on sodalite lattice.Meanwhile,the surface morphology of Cs-doped sodalite consisted of petal shaped aggregated particles at the maximum Cs doping content,which was basically similar as pristine sodalite.In addition,the ultraviolet(UV) absorptance of the Cs-doped sodalite,compared with pure sodalite,increased about 1.3%-2.3%from 225 to 280 nm and about 1.8%-2.8%from 280 to 350 nm,respectively.
