A series of Anderson-type polyoxometalate-based metal–organic complexes: their pH-dependent electrochemical behaviour, and as electrocatalysts and photocatalysts

2016 ◽  
Vol 45 (31) ◽  
pp. 12465-12478 ◽  
Author(s):  
Xiuli Wang ◽  
Junjun Sun ◽  
Hongyan Lin ◽  
Zhihan Chang ◽  
Xiang Wang ◽  
...  
Keyword(s):  
Uv Irradiation ◽  
Organic Dyes ◽  
Electrochemical Behaviour ◽  
Organic Complexes ◽  
Photocatalytic Activities ◽  
Metal Organic ◽  
Ph Dependent

Seven novel polyoxometalate-based metal–organic complexes are synthesized and structurally characterized, exhibiting high electrochemical sensitivity to pH and photocatalytic activities for the degradation of organic dyes under UV irradiation.

Two novel Anderson-type polyoxometalate-based metal–organic complexes with high-efficiency photocatalysis towards degradation of organic dyes under UV and visible light irradiation

RSC Advances ◽  
2015 ◽  
Vol 5 (18) ◽  
pp. 14020-14026 ◽  
Author(s):  
Xiuli Wang ◽  
Zhihan Chang ◽  
Hongyan Lin ◽  
Aixiang Tian ◽  
Guocheng Liu ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
High Efficiency ◽  
Organic Dyes ◽  
Light Irradiation ◽  
Amide Ligands ◽  
Degradation Of Dyes ◽  
Organic Complexes ◽  
Photocatalytic Activities ◽  
Metal Organic

Two novel Anderson-type polyoxometalate-based metal–organic complexes constructed from two bis-pyridyl-bis-amide ligands have been hydrothermally synthesized, showing excellent photocatalytic activities toward the degradation of dyes.

pH-tuned diverse structures and properties: two Anderson-type polyoxometalate-based metal–organic complexes for selective photocatalysis and adsorption of organic dyes

RSC Advances ◽  
2016 ◽  
Vol 6 (112) ◽  
pp. 110583-110591 ◽  
Author(s):  
Xiuli Wang ◽  
Junjun Sun ◽  
Hongyan Lin ◽  
Zhihan Chang ◽  
Guocheng Liu ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Organic Dyes ◽  
Selective Adsorption ◽  
Organic Complexes ◽  
Structures And Properties ◽  
Photocatalytic Activities ◽  
Metal Organic

Two novel Anderson-type POM-based metal–organic complexes were synthesized, which exhibit high selective photocatalytic activities for the degradation of organic dyes. Interestingly, 2 also shows selective adsorption capacity of organic dyes.

Photocatalytic Decolorization of Dyes for Nano-Structures of Titanium Dioxide (TiO2) Films

2010 ◽  
Vol 93-94 ◽  
pp. 603-606 ◽  
Author(s):  
K. Hathaisamit ◽  
W. Pengmula ◽  
T. Wesamula ◽  
Sayan Pudwat
Keyword(s):  
Titanium Dioxide ◽  
Uv Irradiation ◽  
Organic Dyes ◽  
Irradiation Time ◽  
Tio2 Films ◽  
Dc Magnetron Sputtering ◽  
Peak Wavelength ◽  
Photocatalytic Decolorization ◽  
Nano Structures ◽  
Photocatalytic Activities

Application of nano-structures of titanium dioxide (TiO2) films on photocatalytic activities of organic dyes was investigated. Methylene blue (MB) and cation yellow X-Gl 200% were used as organic dyes to observe decolorization. The TiO2 films were prepared on glass substrate by reactive DC magnetron sputtering. The films had thickness, grain size and root mean square surface roughness of 300 nm,  40 nm and  4 nm, respectively. Coated-TiO2 on glass and uncoated TiO2 (glass) were immerged in MB and cation yellow dyes solution. A weak ultraviolet (UV) A at peak wavelength  365 nm and intensity of 0.19 mW/cm2 was irradiated. Absorbance spectra of dyes at different UV irradiation time were observed. The efficiency of decolorization increased as UV irradiation time increased. At UV irradiation time 120 hours, coated-TiO2 showed higher percentage decolorization of MB than uncoated-TiO2 about 64%. While, at UV irradiation time 48 hours, coated-TiO2 showed higher percentage decolorization of cation yellow than uncoated-TiO2 about 84%. Under photocatalysis process of TiO2 films, at the end, MB (about 120 hours) and cation yellow dyes (about 48 hours) change to be colorless.

Effects of Metal Ions and N-Donor Ligands with Different Coordination Characters on the Construction of d10 Metal-organic Complexes with Selective Photocatalytic Activities

2014 ◽  
Vol 69 (6) ◽  
pp. 681-690
Author(s):  
Guo-Cheng Liu ◽  
Nai-Li Chen ◽  
Ju-Wen Zhang ◽  
Yun Qu ◽  
Hong-Yan Lin ◽  
...  
Keyword(s):  
Metal Ions ◽  
Donor Ligands ◽  
Photoluminescence Properties ◽  
X Ray Diffraction ◽  
One Dimensional ◽  
Organic Complexes ◽  
D10 Metal ◽  
Photocatalytic Activities ◽  
Metal Organic ◽  
Supramolecular Networks

Four new d10 metal-organic coordination polymers, [Zn(L)(phen)(H2O)] (1), [Cd(L)(phen)] (2), [Zn(L)(bppdc)]·3H2O (3), and [Cd(L)(bppdc)]·3H2O (4) [L=2-carboxymethylsulfanyl nicotinic acid, phen=1,10-phenanthroline, bppdc=N;N`-bis(pyridin-3-yl)pyridine-2,6-dicarboxamide], have been obtained from hydrothermal reactions of zinc(II)=cadmium(II) nitrates with the semi-rigid N-= S-containing dicarboxylate L, and the two structurally disparate neutral N-donor ligands phen and bppdc. Single-crystal X-ray diffraction analysis has revealed that compound 1 is a one-dimensional (1- D) helical coordination polymer linked by ZnII atoms and L spacers. Compound 2 features a doublechain structure connected via binuclear CdII units and pairs of L linkers. Adjacent chains of 1 and 2 are packed into 3-D supramolecular networks by hydrogen bonds and p-p stacking interactions. Compounds 3 and 4 exhibit similar 2-D (4,4)-connected wave-like networks based on linear [M-L]n and zigzag [M-bppdc]n metal-organic chains (M=ZnII for 3 and CdII for 4). The effects of metal ions and N-donor ligands with different coordination characters are discussed. Moreover, the photoluminescence properties and photocatalytic activities of compounds 1 - 4 were investigated.

Various Anderson-type polyoxometalate-based metal–organic complexes induced by diverse solvents: assembly, structures and selective adsorption for organic dyes

2020 ◽  
Vol 49 (4) ◽  
pp. 1265-1275 ◽  
Author(s):  
Jia-Hui Li ◽  
Xiu-Li Wang ◽  
Ge Song ◽  
Hong-Yan Lin ◽  
Xiang Wang ◽  
...  
Keyword(s):  
Chromatographic Separation ◽  
Organic Dyes ◽  
Selective Adsorption ◽  
Dye Adsorption ◽  
Organic Complexes ◽  
Metal Organic ◽  
Short Time

A series of Anderson-type polyoxometalates (POMs)-based metal–organic complexes with different structures have been synthesized, they show excellent dye adsorption and chromatographic separation in a short time.

Synthesis, crystal structure, luminescence, and photocatalytic properties of a 2D Cu(II) metal-organic frameworks based on 3,5-di(1H-benzimidazol-1-yl)pyridine and 4,4′-oxybis(benzoate) ligands

2020 ◽  
Vol 75 (8) ◽  
pp. 727-732
Author(s):  
Chen Zhang ◽  
Jian-Qing Tao
Keyword(s):  
Crystal Structure ◽  
Thermal Analysis ◽  
Uv Light ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
X Ray Diffraction ◽  
X Ray ◽  
Uv Light Irradiation ◽  
Photocatalytic Activities ◽  
Metal Organic

AbstractA new Cu(II) metal-organic framework, [Cu(L)(OBA)·H2O]n (1) [H2OBA = 4,4′-oxybis(benzoic acid), L = 3,5-di(1H-benzimidazol-1-yl)pyridine] was hydrothermally synthesized and characterized through IR spectroscopy, elemental and thermal analysis and single-crystal X-ray diffraction. Complex 1 is a four-connected uni-nodal 2D net with a (44·62) topology which shows an emission centered at λ ∼393 nm upon excitation at λ = 245 nm. Moreover, complex 1 possesses high photocatalytic activities for the decomposition of Rhodamine B (RhB) under UV light irradiation.

Synthesis, designing strategies and photocatalytic charge dynamics of Metal-Organic Frameworks (MOFs): A catalyzed Photo-degradation approach towards Organic Dyes

2021 ◽  
Author(s):  
Ayushi Singh ◽  
Ashish Kumar Singh ◽  
Jian-Qiang Liu ◽  
Abhinav Kumar
Keyword(s):  
Small Molecule ◽  
Coordination Polymers ◽  
Organic Dyes ◽  
Metal Organic Frameworks ◽  
Gas Storage ◽  
New Variety ◽  
Photo Degradation ◽  
Charge Dynamics ◽  
Potential Applications ◽  
Metal Organic

Metal-organic frameworks (MOFs) or coordination polymers (CPs) are regarded as new variety of materials that find potential applications in plethora of areas such as gas/small molecule absorption/separation, gas storage, membranes...

Lawsone Derived Zn (II) and Fe (III) Metal Organic Frameworks with pH Dependent Emission for Controlled Drug Delivery

2021 ◽  
Author(s):  
Sirajunnisa P ◽  
Liz Hannah George ◽  
Narayanapillai Manoj ◽  
Prathapan S ◽  
G.S. Sailaja
Keyword(s):  
Drug Delivery ◽  
Porous Structure ◽  
High Surface ◽  
Metal Organic Frameworks ◽  
High Surface Area ◽  
Controlled Drug Delivery ◽  
Sensing Applications ◽  
Porous Carriers ◽  
Metal Organic ◽  
Ph Dependent

Fluorescent biocompatible porous carriers have been investigated as suitable probes for drug delivery and sensing applications owing to their intrinsic fluorescence and high surface area originating from their porous structure...

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