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两种萘磺酸类配合物的合成及其在小分子识别方面的应用
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作者 朱江 冷茹冰 +3 位作者 高胜男 姚慧 王孝敏 陈立东 《辽宁师范大学学报(自然科学版)》 CAS 2017年第3期349-354,共6页
1,5-萘二磺酸二钠盐为主配体,邻苯二胺为第二配体,利用常温法和水热法合成[Ni(H_2NC_6H_4NH_2)_2(H_2O)_2]·2nds·H2O(1)和[Cd(H_2NC_6H_4NH_2)_4]·nds(2)两种新型的配位聚合物.用X射线单晶衍射方法和SHELXTL—97软件分... 1,5-萘二磺酸二钠盐为主配体,邻苯二胺为第二配体,利用常温法和水热法合成[Ni(H_2NC_6H_4NH_2)_2(H_2O)_2]·2nds·H2O(1)和[Cd(H_2NC_6H_4NH_2)_4]·nds(2)两种新型的配位聚合物.用X射线单晶衍射方法和SHELXTL—97软件分别确定和解析出晶体的结构;用X射线粉末衍射(XRD)和热重分析(TGA)分析配合物的纯度及骨架结构的稳定性;根据配合物1的荧光性能分析其对于甲醇的小分子识别性能方面存在着潜在的应用;同时利用场诱导表面光电压技术为基础的多功能光谱仪,测定了配合物的表面光电性能,配合物1、2的光伏响应带强度是随着外加电场电压的增加而增强,说明该类配合物具有一定的p型半导体的性质特征. 展开更多
关键词 晶体结构 荧光性能 分子识别 表面光电压性能
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Engineering oxygen vacancy on rutile TiO_2 for efficient electron-hole separation and high solar-driven photocatalytic hydrogen evolution 被引量:13
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作者 Fang Xiao1 Wei Zhou2 +5 位作者 Bojing Sun2 Haoze Li2 Panzhe Qiao2 Liping Ren2 Xiaojun Zhao1 Honggang Fu2 《Science China Materials》 SCIE EI CSCD 2018年第6期822-830,共9页
Oxygen vacancy(VO) plays a vital role in semiconductor photocatalysis. Rutile TiO2 nanomaterials with controllable contents of VO(0–2.18%) are fabricated via an insitu solid-state chemical reduction strategy, wit... Oxygen vacancy(VO) plays a vital role in semiconductor photocatalysis. Rutile TiO2 nanomaterials with controllable contents of VO(0–2.18%) are fabricated via an insitu solid-state chemical reduction strategy, with color from white to black. The bandgap of the resultant rutile TiO2 is reduced from 3.0 to 2.56 e V, indicating the enhanced visible light absorption. The resultant rutile TiO2 with optimal contents of VO(2.07%) exhibits a high solar-driven photocatalytic hydrogen production rate of 734 μmol h-1, which is about four times as high as that of the pristine one(185 μmol h-1). The presence of VOelevates the apparent Fermi level of rutile TiO2 and promotes the efficient electronhole separation obviously, which favor the escape of photogenerated electrons and prolong the life-time(7.6×103 ns) of photogenerated charge carriers, confirmed by scanning Kelvin probe microscopy, surface photovoltage spectroscopy and transient-state fluorescence. VO-mediated efficient photogenerated electron-hole separation strategy may provide new insight for fabricating other high-performance semiconductor oxide photocatalysts. 展开更多
关键词 oxygen vacancy rutile TiO2 surface engineering solar-driven photocatalysis hydrogen evolution
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