摘要
In the paper,we report a highly robust and porous bimetallic Ti-MOF(designated Mg_(2)Ti-ABTC)by utiliz-ing a trinuclear[Mg_(2)TiO(COO)_(6)]cluster and a tetradentate H_(4)ABTC(3,3′,5,5′-azobenzene tetracarboxylic acid)ligand.Mg_(2)Ti-ABTC exhibited permanent porosity for N_(2),CO_(2),CH_(4),C_(2)H_(2),C_(2)H_(4),and C_(2)H_(6)gas adsorption.Further-more,Mg_(2)Ti-ABTC exhibited outstanding photocatalytic activity in the oxidation of aromatic sulfides to the corre-sponding sulfoxides under ambient air conditions.Mechanism studies reveal that photoinduced holes(h^(+)),the super-oxide radical(·O_(2)^(-)),and singlet oxygen(^(1)O_(2))are pivotal species involved in the photocatalytic oxidation reaction.
我们报道了一例稳定、高度多孔的双金属Ti-MOF材料(Mg_(2)Ti-ABTC),其由三核钛镁氧簇[Mg_(2)TiO(COO)_(6)]与四齿配体H_(4)ABTC(3,3′,5,5′-偶氮苯四羧酸)构建而成。Mg_(2)Ti-ABTC对氮气、二氧化碳、甲烷、乙炔、乙烯、乙烷等气体展现了永久孔隙性,而且具有良好的光催化活性。Mg_(2)Ti-ABTC作为一种高效的光催化剂,能够在空气氛围中实现芳香硫醚向亚砜化合物的高选择性转化。反应机理研究揭示了光生空穴(h^(+))、超氧自由基(·O_(2)^(-))、单线态氧(^(1)O_(2))是参与光催化氧化反应的关键物种。
出处
《无机化学学报》
北大核心
2025年第10期2115-2126,共12页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金(No.21501086,22003003)
山东省自然科学基金(No.ZR2022MB137)资助。
