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Chemical Research in Chinese Universities 2016年第6期32卷 882-888页

作者： sun Dandan CAO Yanyan XU Yanyan ZHANG Guoying sun yaqiu Tianjin Key Laboratory of Structure and Performance for Functional Molecules Key Laboratory of Inorganic-organic Hybrid Functional Material Chemistry Ministry of Education College of Chemistry Tianjin Normal University Tianjin 300387 P. R. China

Uniform a-Fe203/amorphous TiO2 core-shell nanocomposites were prepared via a hydrolysis method anda-Fe2OJanatase TiO2 core-shell nanocomposites were obtained via a post-calcination process. The structure andmorphology of the products were characterized by powder X-ray diffraction, X-ray photoelectron spectroscopy,transmission electron microscopy and scanning electron microscopy. Amorphous TiO2 nanoparticles with diametersof ten to several tens nanometer were formed on the surface of a-Fe203 nanoparticles and the coverage density of thesecondary TiO2 nanoparticles in the composite can be controlled by varying the concentration of Ti（BuO）4 m theethanol solution. The visible-light photocatalytic properties of different products towards Rhodamine B（RhB） wereinvestigated. The results show that the a-Fe203/amorphous TiO2 exhibits a good photocatalytic property owing to theextension of the light response range to visible light and the efficient separation of photogenerated electrons and holesbetween a-Fe203 and amorphous TiO2.

关键词： a-Fe2O3/TiO2 Core-shell nanostrueture Photocatalytic activity Rhodamine B

Syntheses, Crystal Structures, Magnetic and Near-infrared Luminescence Properties of 3d-4f Coordination Polymers Cu2Pr2, Cu2Eu2 and Cu4Tb2

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Chemical Research in Chinese Universities 2019年第4期35卷 693-699页

作者： ZHONG Liangxuan LIU Mingyue ZHANG Bowei sun yaqiu XU Yanyan Tianjin Key Laboratory of Structure and Performance for Functional Molecule College of Chemistry Tianjin Normal UniversityTianjin 300387P. R.China Key Laboratory of Advanced Energy Materials Chemistry Ministry of EducationNankai University Tianjin 300071P. R.China

Three new 3d-4f heterometallic coordination polymers(CPs), namely,[Pr2(CuL)2(nipt)3(H2O)]·2H2O (Cu2Pr2,1),[Eu2(CuL)2(nipt)3(H2O)]-2H2O(Cu2Eu2, 2) and [Tb2(CuL)4(nipt)3]-8.3H2O(Cu4Tb2,3)(CuL,H2L= 2,3-dioxo-5,6,14,15-dibenzo-1,4,8,12-tetraazacyclo-pentadeca-7,13-dien;nipt^2-= 5-nitroisophthalate) were obtained by a solvothermal method and structurally characterized by single-crystal X-ray diffraction analyses, elemental analyses, Fourier transform infrared spectra and ultraviolet visible absorption spectra. In Cu2Pr2 and Cu2Eu2,μ3-bridged and μ5-bridged nipt^2- ligands alternately linked three Ln^3+ and five metal ions(three Ln^3+ and two Cu^2+ ions) to generate a 2D heterometallic framework with 3,3,4,5-connected (3.4.5)(3^2.4^2.5.6^3.72)(4^2.6^3.8)(4^2.6) topology. In Cu4Tb2,μ2-bridged and μ4-bridged nipt2- ligands alternately connected two Tb3+ and four metal ions(two Tb^3+ and two Cu^2+ ions) by carboxylating into a corrugated heterometallic 2D layer with 3-connected (63) topology. The magnetic properties of Cu2Pr2 and Cu2Eu2 were also discussed, the results show tliat both CPs have a weak antimagnetic interaction. Moreover, the near-iiifrared luminescence properties of Cu2Pr2 and Cu2Eu2 were also studied.

关键词： Heterometallic coordination polymer Crystal structure Magnetic property

Construction of hierarchical photocatalysts by growing ZnIn_(2)S_(4) nanosheets on Prussian blue analogue-derived bimetallic sulfides for solar co-production of H_(2) and organic chemicals

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Journal of Energy Chemistry 2021年第3期30卷 386-394页

作者： Liangxuan Zhong Baodong Mao Meng Liu Mingyue Liu yaqiu sun Yi-Tao Song Zhi-Ming Zhang Tong-Bu Lu Tianjin Key Laboratory of Structure and Performance for Functional Molecules College of ChemistryTianjin Normal UniversityTianjin 300387China Institute for New Energy Materials&Low Carbon Technologies School of Materials Science&EngineeringTianjin University of TechnologyTianjin 300384China School of Chemistry and Chemical Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina

Exploring highly efficient bifunctional photocatalysts for simultaneous H2 evolution and organic chemical production in pure water represents a green route for sustainable solar energy storage and ***,a facile strategy was explored for preparing a hierarchical porous heterostructure of Fe_(4)Ni_(5)S_(8)@ZnIn_(2)S_(4)(FNS@ZIS)by the in situ growth of ZIS nanosheets on Prussian blue analogue(PBA)-derived bimetallic FNS sulfides.A series of FNS@ZIS hierarchical structures were facilely prepared by adjusting the loading amount(n%)of FNS(n=19,26,and 32 for FNS@ZIS-1-3).These structures can efficiently drive the solar co-production of H_(2) and organic *** optimal co-production was achieved with FNS@ZIS-2,affording a H_(2) evolution rate of 10465μmol·g^(-1)·h^(-1),along with high selectivity for the oxidation of benzyl alcohol to benzaldehyde(>99.9%).The performance was 22 and 31 times higher than that of FNS and ZIS,respectively,and even superior to the state-of-the-art results achieved using various sacrificial *** mechanistic study indicated that the unique hierarchical core/shell architecture can facilitate interfacial charge separation,afford bimetallic synergy,abundant active sites and excellent *** work highlights a simple and efficient method for preparing porous multimetallic hierarchical structures for the solar co-production of organic chemicals and H_(2) fuel.

关键词： Prussian blue analogue Photocatalysis Hydrogen evolution Benzyl alcohol oxidation Coordination polymer

Synthesis,Crystal Structure of an Unprecedented Pentanuclear Cu511 Complexes Containing Both Macrocyclic and Azido Ligands

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Ag_(2)CO_(3)/Bi_(2)O_(2)CO_(3)光催化剂的p-n异质结构筑及活性研究

中国化学会第五届全国结构化学学术会议

作者： yaqiu sun~* Dongzhao Gao Department of Chemistry,Tianjin Normal University,Tianjin 300098,P R.China

The novel inorg/orgainc hybrid complex of formula[(CuL)Cu(μ-1,1-N)(ClO)]1, incorporating both macrocyclic oxamide and(μ.-1,1)azido bridges(CuL,HL=2,3-dioxo-5,6, 14,15-dibenzo-1,4,8,12-tetraazacyclo-pentadeca-7,13-dien),has been synthesized and structurally *** crystals crystallize in the tficlinic system,space group P-1,for 1 α=

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高等学校化学学报 2019年第12期40卷 2590-2597页

作者：王俊瑾张国英孙亚秋刘景旺天津师范大学化学学院天津市功能分子结构与性能重点实验室无机-有机杂化功能材料化学教育部重点实验室天津 300387 山东师范大学化学化工与材料科学学院山东省精细化学品清洁合成重点实验室山东 250014

采用先后沉淀法制备了Ag2CO3/Bi2O2CO3(BOC)复合光催化剂.扫描电子显微镜和透射电子显微镜表征结果表明,尺寸为8. 0~18. 5 nm的Ag2CO3颗粒均匀分散于BOC纳米片表面.两种半导体之间所形成的良好p-n异质界面效应拓宽了BOC的光吸收范围,并... 详细信息

采用先后沉淀法制备了Ag2CO3/Bi2O2CO3(BOC)复合光催化剂.扫描电子显微镜和透射电子显微镜表征结果表明,尺寸为8. 0~18. 5 nm的Ag2CO3颗粒均匀分散于BOC纳米片表面.两种半导体之间所形成的良好p-n异质界面效应拓宽了BOC的光吸收范围,并有效促进了光生电子-空穴对的分离.Ag2CO3/BOC复合光催化剂的催化活性明显提高,其中Ag2CO3含量(质量分数)为0. 62%时活性最佳,降解罗丹明B的速率常数为纯BOC的2. 8倍.结合催化过程中的活性物种研究和两种半导体的相对能带位置,提出了p-n异质界面空间电荷层的形成以及载流子分离和迁移机制.

关键词：碳酸氧铋碳酸银 p-n异质结光催化电荷迁移

大环稀土-过渡金属超分子配合物[Tb(NiL)_3(CH_3OH)_3](ClO_4)_3·5CH_3OH的合成及晶体结构

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天津师范大学学报（自然科学版） 2009年第1期29卷 42-44页

作者：范兰兰姜山孙亚秋天津师范大学化学与生命科学学院天津300387

合成了以大环草酰胺配合物NiL为配体的四核Ni3Tb稀土-过渡配合物[Tb(NiL)3(CH3OH)3](ClO4)3.5CH3OH,并利用单晶X-射线结构分析、红外光谱以及电子光谱等多种手段对该配合物进行了结构表征.结构分析表明,该配合物为三斜晶系,对称群为P-1,... 详细信息

合成了以大环草酰胺配合物NiL为配体的四核Ni3Tb稀土-过渡配合物[Tb(NiL)3(CH3OH)3](ClO4)3.5CH3OH,并利用单晶X-射线结构分析、红外光谱以及电子光谱等多种手段对该配合物进行了结构表征.结构分析表明,该配合物为三斜晶系,对称群为P-1,a=1.508 1(3)nm,b=1.513 2(3)nm,c=1.744 6(3)nm,α=82.512(11)o,β=70.095(6)o,γ=84.185(10)o,Z=2.

关键词：大环草酰胺配合物稀土离子晶体结构超分子

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TiO2纳米光催化材料的研究进展

天津师范大学学报（自然科学版） 2019年第5期39卷 1-6页

作者：孙亚秋邓国志田欣许艳艳天津师范大学化学学院天津300387 天津师范大学无机-有机杂化功能材料化学教育部重点实验室天津300387 天津师范大学天津市功能分子结构与性能重点实验室天津300387

在环境污染物的光催化分解中,高活性光催化剂的使用是关键环节.本文综述了近年来TiO2光催化材料改性的重要方法以及新型TiO2光催化剂的研究进展.TiO2光催化剂的改性方法主要有复合半导体、染料光敏化、贵金属沉积、金属离子掺杂、非金... 详细信息

在环境污染物的光催化分解中,高活性光催化剂的使用是关键环节.本文综述了近年来TiO2光催化材料改性的重要方法以及新型TiO2光催化剂的研究进展.TiO2光催化剂的改性方法主要有复合半导体、染料光敏化、贵金属沉积、金属离子掺杂、非金属掺杂、多元共掺杂等.新型光催化剂种类主要有钙钛型光催化剂、层状金属氧化物光催化剂、隧道结构化合物光催化剂等.未来可以考虑利用普鲁士蓝类纳米配合物和金属-有机框架材料(MOFs)对TiO2光催化材料进行改性,得到新型的具有高催化活性的的TiO2光催化剂.

关键词： TiO2纳米光催化材料改性光催化剂活性

[Cu(N_3)_2(phen)]_n和[CoNiL(Hcam)(H_2O)]单晶配合物的合成、结构及其荧光性质

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天津师范大学学报（自然科学版） 2019年第1期39卷 28-32页

作者：邓国志孙亚秋信娜郑艳峰天津师范大学化学学院天津300387 天津师范大学无机-有机杂化功能材料化学教育部重点实验室天津300387 天津师范大学天津市功能分子结构与性能重点实验室天津300387

采用混配的方法,以叠氮和邻菲罗啉为共配体,合成叠氮桥联的配位聚合物1 [Cu(N_3)_2(phen)](phen=1,10-phenanthroline monohydrate),以大环草酰胺单核配合物Ni L和4-羟基吡啶-2,6-二羧酸为共配体,合成杂金属双核配合物2 [CoNiL (Hcam)(H... 详细信息

采用混配的方法,以叠氮和邻菲罗啉为共配体,合成叠氮桥联的配位聚合物1 [Cu(N_3)_2(phen)](phen=1,10-phenanthroline monohydrate),以大环草酰胺单核配合物Ni L和4-羟基吡啶-2,6-二羧酸为共配体,合成杂金属双核配合物2 [CoNiL (Hcam)(H_2O)](ML,H2L=2,3-dioxo-5,6,14,15-dibenzo-1,4,8,12-tetraazacyclo-pentadeca-7,13-dien;Hcam2-=4-hydroxypyridine-2,6-pyridinedicarboxylate).利用单晶X-线衍射进行结构表征,对配合物进行红外光谱、粉末X-线衍射和荧光光谱分析.结果表明:配合物1通过叠氮桥联中心铜(Ⅱ)离子构成一维双链结构,链与链之间又通过C—H…N分子间氢键构成三维超分子结构;配合物2通过O—H…O分子间氢键构成了二维超分子结构.红外光谱测试结果显示:配合物1在1 517 cm-1处出现较强的吸收带,配合物2分别在1 647～1 603 cm-1和1 556～1 562 cm-1区域出现较强的吸收带.荧光测试结果表明:同配体相比,配合物1和2均发生了荧光猝灭,这是因为配体与相对应的金属离子发生了配位的缘故.

关键词：配合物荧光猝灭超分子结构

Analysis of microwave brightness temperature of lunar surface and inversion of regolith layer thickness:Primary results of Chang-E 1 multi-channel radiometer observation

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Science China(Information Sciences) 2010年第1期53卷 168-181页

作者： FA WenZhe & JIN yaqiu Key Laboratory of Wave Scattering and Remote Sensing Information (MoE), Fudan University, Shanghai 200433, China 1. Key Laboratory of Wave Scattering and Remote Sensing Information (MoE) Fudan University Shanghai 200433 China

In China’s first lunar exploration project, Chang-E 1 (CE-1), a multi-channel microwave radiometer was aboard the satellite, with the purpose of measuring microwave brightness temperature from lunar surface and surveying the global distribution of lunar regolith layer thickness. In this paper, the primary 621 tracks of swath data measured by Chang-E 1 microwave radiometer from November 2007 to February 2008 are collected and analyzed. Using nearest neighbor interpolation based on the sun incidence angle in observations, global distributions of microwave brightness temperature from lunar surface at lunar daytime and nighttime are constructed. Using the three-layer model (the top dust-soil, regolith and underlying rock media) for microwave thermal emission of lunar surface, the measurements of brightness temperature and dependence upon latitude, frequency and FeO+TiO2 content, etc. are discussed. On the basis of the ground measurements at Apollo landing sites, the observed brightness temperature at these locations are validated and calibrated by numerical three-layer modeling. Using the empirical dependence of physical temperature upon the latitude verified by the measurements at Apollo landing sites, the global distribution of regolith layer thickness is then inverted from the brightness temperature data of CE-1 at 3 GHz channel. Those inversions at Apollo landing sites are com- pared with the Apollo in situ measurements. Finally, the statistical property of regolith thickness distribution is analyzed and discussed.

关键词： Chang-E 1 multi-channel brightness temperature Apollo landing site physical temperature inversion of regolith layer thickness

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木塑熔体流变性影响挤出成型的数值模拟

东北林业大学学报 2014年第10期42卷 123-127页

作者：刘亚秋孙垚曹军生物质材料科学与技术教育部重点实验室(东北林业大学) 哈尔滨150040

基于计算流体动力学(CFD)技术,对木塑复合挤出机成型段温度和压力特性分析,实现对不同流变特性参数下的单螺杆挤出机木塑熔体流动和传热进行数值模拟,获得计量段和法兰处内部流场信息,分析零剪切黏度、非牛顿指数、松弛时间和木粉含量... 详细信息

基于计算流体动力学(CFD)技术,对木塑复合挤出机成型段温度和压力特性分析,实现对不同流变特性参数下的单螺杆挤出机木塑熔体流动和传热进行数值模拟,获得计量段和法兰处内部流场信息,分析零剪切黏度、非牛顿指数、松弛时间和木粉含量对单螺杆挤出机内部流场的影响。数值模拟结果表明:零剪切黏度对计量段压力和法兰处压力影响较大,对剪切率影响较小;而非牛顿指数对计量段压力影响较大,对法兰处压力和剪切率影响较小;同时得到黏度随非牛顿指数的增大而增大。

关键词：木塑挤出机成型段温度成型段压力木塑熔体黏度非牛顿指数计算流体动力学