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Journal of Environmental Sciences 2017年第1期29卷 214-221页

作者： Wenyu Wang Shuang Zhao Qinyan Yue Baoyu Gao Wen Song Lijuan Feng shandong Provincial key laboratory of Water Pollution Control and Resource Reuse School of Environmental Science and EngineeringShandong UniversityJinan 250100China. Key Laboratory of Inorganic Chemistry in Uniuersities of Shandong Department of Chemistry and Chemical EngineeringJining UniversityShandong 273155China

The objective of this study was to investigate the effect of different Al species and chitosan（CS） dosages on coagulation performance,floc characteristics（floc sizes,strength and regrowth ability and fractal dimension） and membrane resistance in a coagulation-ultrafiltration hybrid process.Results showed that different Al species combined with humic acid in diverse ways.A1_a had better removal efficiency,as determined by UV_（254） and dissolved organic carbon,which could be further improved by the addition of CS.In addition,the optimal dosage of different Al species was determined to be 4.0 mg/L with the CS concentration of 1.0 mg/L,by orthogonal coagulation experiments.Combining Al_a/A1_b/A1_c,with CS resulted in larger flocs,higher recovery,and higher fractal dimension values corresponding to denser flocs;in particular,the floc size at the steady state stage was four times larger than that obtained with Al species coagulants alone.The results of ultrafiltration experiments indicated that the external fouling percentage was significantly higher than that of internal fouling,at around 85%and 15%,respectively.In addition,the total membrane resistance was significantly decreased due to CS addition.

关键词： Al species Chitosan Dual-coagulants Coagulation-ultrafiltration Floc-characteristics Membrane resistance

一体式自漂浮多孔泡沫作为隔热层用于高效光热转换和太阳能脱盐

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Science Bulletin 2023年第22期68卷 2760-2768,M0005页

作者：任丽萍周卫王蕾林阔徐亚超武佳星谢颖付宏刚 key laboratory of Functional inorganic Material chemistry(Ministry of Education) Heilongjiang UniversityHarbin 150080China shandong Provincial key laboratory of Molecular Engineering School of Chemistry and Chemical EngineeringQilu University of Technology(Shandong Academy of Sciences)Jinan 250353China

本文通过冷冻干燥铸造成型和高温表面氢化策略,构筑了一种自漂浮等离子体Ag/黑色TiO_(2)/碳多孔层状泡沫(Ag-BTCFs)作为高效的太阳能热集流体.这种一体式三维(3D)交联自漂浮多孔层状泡沫材料可以实现全光谱吸收(~95.45%),并有效地阻止... 详细信息

本文通过冷冻干燥铸造成型和高温表面氢化策略,构筑了一种自漂浮等离子体Ag/黑色TiO_(2)/碳多孔层状泡沫(Ag-BTCFs)作为高效的太阳能热集流体.这种一体式三维(3D)交联自漂浮多孔层状泡沫材料可以实现全光谱吸收(~95.45%),并有效地阻止热量向下层水体传导.Ag-BTCFs受益于光照射下Ag的局域表面等离子体效应驱动的“热点”效应,促进了光生热电子(e^(-))和光生空穴(h^(+))在等离子体辅助半导体中的传输.此外,具有亲水性的黑色TiO_(2)可以作为水的传输介质.与层状碳泡沫的耦合不仅提高了材料的吸收率,而且促进了热电子的弛豫和集热.更重要的是,光生h~+被用来光催化降解污染物,在不影响蒸汽产生效率的情况下实现了降解污染物和淡水生产的同步进行,这种高效的新型轻质自漂浮Ag-BTCFs将在太阳能蒸汽发电和海水淡化中具有潜在的应用前景.

关键词： Solar steam generation Self-floating porous foam Heat-blocked layer Black TiO_(2) Photothermal conversion

Solvothermal Syntheses and Characterizations of Two New Sliver Selenidoantimonates of Ag_3SbSe_3 and Ag_5SbSe_4~

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Chinese Journal of Structural chemistry 2016年第2期35卷 227-236页

作者： YUE Cheng-Yang ZHANG Hui-Ping LU Xin-Xiu BAI Yi-Qun SHI Hao XU Xin key laboratory of inorganic chemistry in Universities of shandong Department of Chemistry and Chemical EngineeringJining University

Two new sliver selenidoantimonates,namely,Ag3SbSe3 and Ag5SbSe4,were prepared under mid solvothermal conditions and structurally characterized by single-crystal X-ray diffraction studies.Ag3SbSe3 crystallizes in the orthorhombic space group Pnma（No.62） with a =8.2414（12）,b = 11.4925（17）,c = 21.220（3） A,V= 2009.8（5） A^3 and Z= 12.Its structure belongs to the β-Ag3AsSe3 type and features a 3D complex network composed of distorted trigonal planar AgSe3 and tetrahedral AgSe4 units as well as SbSe3 trigonal pyramids.Ag5SbSe4 crystallizes in the orthorhombic system,nocentrosymmetric space group Cmc21（No.36） with a = 8.1148（6）,b =12.9829（10）,c = 8.7017（7） A,V= 916.76（12） A^3 and Z = 4.Its structure adopts the Ag5SbS4 type and features a 3D framework based on trigonal planar AgSe3 units and SbSe3 trigonal pyramids.The results of optical absorption spectra and band structure calculations indicate that the title compounds are narrow band-gap semiconductors.

关键词： selenidoantimonate solvothermal synthesis crystal structure band calculation

Synthesis and Crystal Structure of Sm Cu_(7.73)In_(3.27): a New 3D Framework Based on [Cu_5In_4M_4](M=Cu/In) Cluster

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Chinese Journal of Structural chemistry 2015年第2期34卷 272-278页

作者：雷晓武岳呈阳翟秀荣尹玲刘瑞秋 key laboratory of inorganic chemistry in Universities of shandong Department of Chemistry and Chemical Engineering Jining University

A new intermetallic compound, SmCuT.vslns.27, has been synthesized by solid-state reaction of the corresponding pure elements at high temperature, and structurally characterized by single-crystal X-ray diffraction study. SmCu7.731n3.27 crystallizes in tetragonal space group P4/mbm with a = 8.6213（4）, c = 10.2538（9）, V= 762.13（8） A3, Z = 4, M,. = 1018.90, Dc= 8.880 g/cm3,μ = 38.244 mm-1, F（000） = 1789, and the final R = 0.0374 and wR = 0.0836 for 514 observed reflections with I 〉 2σ（I）. The structure of SmCu7.69In3.31 belongs to a new structure type and features a three-dimensional （3D） [Cusln2M4] （M = Cu/In） framework composed of [CusinnM4] clusters interconnected via sharing In atoms as well as Cu-ln and In-In bonds. The Sm atoms are located in the one-dimensional （1 D） tunnels along the c-axis. The structural relationship of the title compound with other similar Sm-Cu-In phases was also studied. Band structure calculations based on Density Functional Theory （DFT） method indicate that SmCuT.69In3.31 is metallic.

关键词： intermetallic, solid state reaction, indides, crystal structure

3D flower-like mesoporous Bi_(4)O_(5)I_(2)/MoS_(2)Z-scheme heterojunction with optimized photothermal-photocatalytic performance

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Green Energy & Environment 2023年第1期8卷 200-212页

作者： Sijia Song Zipeng Xing Ke Wang Huanan Zhao Peng Chen Zhenzi Li Wei Zhou Department of Environmental Science School of Chemistry and Materials ScienceKey Laboratory of Functional Inorganic Material ChemistryMinistry of Education of the People's Republic of ChinaHeilongjiang UniversityHarbin150080China shandong Provincial key laboratory of Molecular Engineering School of Chemistry and Chemical EngineeringQilu University of Technology(Shandong Academy of Sciences)JinanShandong250353China

3D flower-like hierarchical mesoporous Bi_(4)O_(5)I_(2)/MoS_(2)Z-scheme layered heterojunction photocatalyst was fabricated by oil bath and hydrothermal methods.The heterojunction with narrow band gap of~1.95 eV extended the photoresponse to near-infrared region,which showed obvious photothermal effect due to the introduction of MoS_(2) with broad spectrum response.MoS_(2) nanosheets were anchored onto the surface of flower-like hierarchical mesoporous Bi_(4)O_(5)I_(2) nanosheets,thereby forming efficient layered heterojunctions,the solar-driven photocatalytic efficiency in degradation of highly toxic dichlorophenol and reduction of hexavalent chromium was improved to 98.5%and 99.2%,which was~4 and 7 times higher than that of the pristine Bi_(4)O_(5)I_(2),respectively.In addition,the photocatalytic hydrogen production rate reached 496.78 μmol h^(-1)g^(-1),which was~6 times higher than that of the pristine Bi_(4)O_(5)I_(2).The excellent photocatalytic performance can be ascribed to the promoted photothermal effect,as well as,the formation of compact Z-scheme layered heterojunctions.The 3D flower-like hierarchical mesoporous structure provided adequate surface active-sites,which was conducive to the mass transfer.Moreover,the high stability of the prepared photocatalyst further promoted its potential practical application.This strategy also provides new insights for fabricating layered Zscheme heterojunctions photocatalysts with highly photothermal-photocatalytic efficiency.

关键词： Photocatalysis Z-scheme heterojunction Bi4O5I2 MoS2 Photothermal effect

Synthesis, Crystal Structure and Luminescent Properties of One New Ag(I) Complex Based on 3-Aminopyrazine-2-Carboxylic Acid

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Chinese Journal of Structural chemistry 2014年第4期33卷 635-641页

作者：雷晓武岳呈阳张慧苹翟秀荣冯丽娟 key laboratory of inorganic chemistry in Universities of shandong Department of Chemistry and Chemical Engineering Jining University

One new AgI complex, [Ag（apca）（H2O）]n （Hapca = 3-aminopyrazine-2-carboxylic acid）, has been prepared and structurally and spectroscopically characterized. The title complex （1） crystallizes in the monoclinic system P21/c （No. 14） with a = 14.3307（9）, b = 14.9296（9）, c = 6.5824（4）A, β = 92.7430（10）o, V = 1406.70（15） A3, Z = 8. Mr = 264.00, Dc= 2.493 g/cm3, μ = 2.831 mm-1, F（000） = 1024, the final R = 0.0266 and wR = 0.0788 for 3107 observed reflections with I 〉 2σ（I）. Its structure features a three-dimensional （3D） network composed of one-dimensional （1D） [Ag（apca）（H2O）]n ribbonsinterconnected via weak hydrogen bonds and π-π interactions. Emission spectra of the title complex in the solid state at room temperature give strong green luminescence.

关键词： Hapca AgI crYstal structure luminescence Hapca,

Plasmon Bi in-situ anchored on BiOCl nanosheets assembled microspheres towards optimized photothermal-photocatalytic performance

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Chinese Chemical Letters 2024年第2期35卷 469-476页

作者： Dongxue Song Mingxia Li Fan Yang Menghan Yu Zhenzi Li Jie Chen Xiaoshuang Zhang Wei Zhou School of chemistry and Materials Science Key Laboratory of Functional Inorganic Material ChemistryMinistry of Education of the People's Republic of ChinaHeilongjiang UniversityHarbin 150080China shandong Provincial key laboratory of Molecular Engineering School of Chemistry and Chemical EngineeringQilu University of Technology (Shandong Academy of Sciences)Ji'nan 250353China

Interface engineering is of great importance to improve the photocatalytic performance.Herein,in-situ formation plasmon Bi/BiOCl nanosheets assembled heterojunction microspheres are fabricated via facile reductive solvothermal approach.The aldehyde group in the DMF structure is used to exert the weak reducing property of the solvent and thus strip out the metal Bi in BiOCl.The metal Bi is anchored on surface of BiOCl firmly due to in-situ formation engineered interface,which could realize efficient charge transfer channel.The resultant Bi/BiOCl heterojunctions assemblies with narrow bandgap of 3.05 eV and mesoporous structure extend the photoresponse to visible light region and could provide sufficient surface active sites.The visible-light-driven photocatalytic degradation of high-toxic norfloxacin for Bi/BiOCl heterojunctions is up to 95.5%within 20 min,representing several times that of pristine BiOCl nanosheets and the physical mixture.It is attributed to the in-situ formation of Bi/BiOCl heterojunctions and surface plasmon resonance(SPR)effect of plasmon Bi promoting charge transfer,and the obvious photothermal effect promoting the photocatalytic reaction,which are verified by experimental and density functional theory(DFT)calculations.This strategy provides ideal perspectives for fabricating metal/semiconductor heterojunctions photocatalysts with high-performance.

关键词： Photocatalysis BiOCl Heterojunction Plasmon Bi Mesoporous structure

Recent advances in bismuth-based photocatalysts:Environment and energy applications

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Green Energy & Environment 2023年第5期8卷 1232-1264页

作者： Sijia Song Zipeng Xing Huanan Zhao Zhenzi Li Wei Zhou Department of Environmental Science School of Chemistry and Materials ScienceKey Laboratory of Functional Inorganic Material ChemistryMinistry of Education of the People's Republic of ChinaHeilongjiang UniversityHarbin150080China shandong Provincial key laboratory of Molecular Engineering School of Chemistry and Chemical EngineeringQilu University of Technology(Shandong Academy of Sciences)Jinan250353China

Photocatalysis is an effective way to solve the problems of environmental pollution and energy shortage.Numerous photocatalysts have been developed and various strategies have been proposed to improve the photocatalytic performance.Among them,Bi-based photocatalysts have become one of the most popular research topics due to their suitable band gaps,unique layered structures,and physicochemical properties.In this review,Bi-based photocatalysts(BiOX,BiVO_(4),Bi_(2)S_(3),Bi_(2)MoO_(6),and other Bi-based photocatalysts)have been summarized in the field of photocatalysis,including their applications of the removal of organic pollutants,hydrogen production,oxygen production etc.The preparation strategies on how to improve the photocatalytic performance and the possible photocatalytic mechanism are also summarized,which could supply new insights for fabricating high-efficient Bi-based photocatalysts.Finally,we summarize the current challenges and make a reasonable outlook on the future development direction of Bi-based photocatalysts.

关键词： Photocatalysis Bismuth based photocatalyst Hydrogen evolution Solar fuel energy Environment remediation

Synthesis, Crystal Structure and Chemical Bonding of a New Binary Lu-Sn Phase: Lu_(11)Sn_(10)

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Chinese Journal of Structural chemistry 2013年第6期32卷 857-862页

作者：岳呈阳周芳霞王明峰张慧苹雷晓武 key laboratory of inorganic chemistry in Universities of shandong Department of Chemistry and Chemical Engineering Jining University

A new tetragonal phase of LunSnl0 is obtained from high temperature reaction of the pure elements in a welded tantalum tube. Its crystal structure was established by single-crystal X-ray diffraction. Lu11Sn10 crystallizes in the tetragonal space group 14/mmm （No. 139） with a = 11.2953（18）, c = 16.424（4） A, V= 2095.5（7）A3, Z= 4, Mr = 3111.57, Dc = 9.863 g/cm^3, p = 62.897 -1 mm , F（000） = 5124, and the final R = 0.0348 and wR = 0.0894 for 706 observed reflections with 1 〉 2σ（I）. The structure of LullSnl0 may be derived from the HonGel0 structural type. It is isostructural with DyllSn10, featuring a three-dimensional （3D） framework composed of [Sn4] squares and [Sn2] dimers interlinked via Sn-Sn bonds with two types of one-dimensional （1D） tunnels along the c-axis, which are occupied by isolated Sn atoms, [Sn2] dimers and all the Lu atoms Band structure calculation based on density functional theory method indicates that LUllSn10 is metallic.

关键词： intermetallic high-temperature solid-state reaction crystal structure stannide

Engineering surface oxygen vacancy of mesoporous CeO_(2) nanosheets assembled microspheres for boosting solar-driven photocatalytic performance

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Chinese Chemical Letters 2022年第1期33卷 378-384页

作者： Decai Yang Yachao Xu Kai Pan Chuanxin Yu Jiaxing Wu Mingxia Li Fan Yang Yang Qu Wei Zhou School of chemistry and Materials Science Key Laboratory of Functional Inorganic Material ChemistryMinistry of Education of the People's Republic of ChinaHeilongjiang UniversityHarbin 150080China shandong Provincial key laboratory of Molecular Engineering School of Chemistry and Chemical EngineeringQilu University of Technology(Shandong Academy of Sciences)Ji'nan 250353China

Surface oxygen vacancy defects of mesoporous CeO_(2)nanosheets assembled microspheres(D-CeO_(2))are engineered by polymer precipitation,hydrothermal and surface hydrogenation strategies.The resultant D-CeO_(2)with a main pore diameter of 9.3 nm has a large specific surface area(~102.3 m^(2)/g)and high thermal stability.The mesoporous nanosheets assembled microsphere structure prevents the nanosheets from aggregation,which is beneficial to effective mass transfer and shortens the migration distance of charge carriers.After surface hydrogenation,the photoresponse extends to long wavelength region,combing with the band gap from 2.63 eV reduced to 2.39 eV.Under AM 1.5 G radiation,the photocatalytic degradation rate of tetracycline(TC)can be up to 99.99%,which is three times as high as that of pristine CeO_(2)microspheres.The excellent solar-driven photocatalytic performance can be attributed to the efficient surface oxygen vacancy engineering and the mesoporous nanosheets assembled microsphere structure,which narrows the band gap,shortens the migration distance of carriers,promotes the spatial separation of photogenerated electron-hole pairs and favors mass transfer.The strategy provides new insights for fabricating other high-efficient oxide photocatalysts.

关键词： Mesoporous CeO_(2) Photocatalysis Nanosheet Surface oxygen vacancy Surface defect