Solvent- and Temperature-Induced Multiple Crystal Phases: Crystal Structure, Selective Adsorption, and Separation of Organic Dye in Three S-Containing {[Cd(MIPA)]n}n− Homologues

2016 ◽  
Vol 16 (11) ◽  
pp. 6363-6370 ◽  
Author(s):  
Bao-Xia Dong ◽  
Meng Tang ◽  
Wen-Long Liu ◽  
Yi-Chen Wu ◽  
Yong-Mei Pan ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Selective Adsorption ◽  
Organic Dye ◽  
Crystal Phases

Novel cage-like MOF for gas separation, CO2 conversion and selective adsorption of an organic dye

2020 ◽  
Vol 7 (3) ◽  
pp. 746-755 ◽  
Author(s):  
Yong-Zhi Li ◽  
Gang-Ding Wang ◽  
Hong-Yun Yang ◽  
Lei Hou ◽  
Yao-Yu Wang ◽  
...  
Keyword(s):  
Gas Separation ◽  
Selective Adsorption ◽  
Organic Dye ◽  
Methyl Blue ◽  
Co2 Conversion

A Zn-MOF was constructed by a F-decorated ligand and bipyridyl linkers, displaying selective adsorption for CO2, C2H6, C2H2 over CH4, catalysis for CO2 conversion and selective adsorption for methyl blue.

Synthesis of Aluminium Titanate Ceramics from Waste Sludge of Aluminium Factory

2008 ◽  
Vol 368-372 ◽  
pp. 1538-1540
Author(s):  
Yang Shen ◽  
Yu Zhong Ruan ◽  
Yan Yu ◽  
Yun Hong Zheng
Keyword(s):  
Crystal Structure ◽  
Aluminum Oxide ◽  
Raw Materials ◽  
Pure Tio2 ◽  
Target Product ◽  
Tio2 Powder ◽  
Aluminium Titanate ◽  
Waste Sludge ◽  
Crystal Phases ◽  
Titanate Ceramics

Aluminium titanate was synthesized using waste aluminium sludge and chemical pure TiO2 powder as raw materials. Effect of different compositions on crystal structure and contents of target product was discussed. XRD results showed that four crystal phases, aluminium titanate, perovskite, rutile and aluminum oxide, are formed in the sintered samples. The content of aluminium titanate increases first and then decreases with the decrease of the content of waste aluminum sludge. When the content of the sludge is 65.52wt%, the content of aluminium titanate reaches the maximum of 86.1wt%.

Azacalix[7]arene Heptamethyl Ether: Preparation, Nanochannel Crystal Structure, and Selective Adsorption of Carbon Dioxide†

2008 ◽  
Vol 73 (19) ◽  
pp. 7748-7755 ◽  
Author(s):  
Hirohito Tsue ◽  
Kazuhiro Matsui ◽  
Koichi Ishibashi ◽  
Hiroki Takahashi ◽  
Satoshi Tokita ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Carbon Dioxide ◽  
Selective Adsorption

The effect of Sn for Ti substitution on the average and local crystal structure of BaTi1−xSnxO3(0 ≤x≤ 0.20)

2014 ◽  
Vol 47 (3) ◽  
pp. 999-1007 ◽  
Author(s):  
Ljiljana Veselinović ◽  
Miodrag Mitrić ◽  
Lidija Mančić ◽  
Marija Vukomanović ◽  
Branka Hadžić ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Raman Spectroscopy ◽  
Rietveld Refinement ◽  
Nominal Composition ◽  
Conventional Solid State Reaction ◽  
Structural Investigations ◽  
Selected Area Electron Diffraction ◽  
High Resolution Tem ◽  
Crystal Phases ◽  
Ti Substitution

The effect of Sn for Ti substitution on the crystal structure of a perovskite, barium titanate stannate (BTS), BaTi1−xSnxO3forx= 0, 0.025, 0.05, 0.07, 0.10, 0.12, 0.15 and 0.20, was investigated. The powders were prepared by the conventional solid-state reaction technique. The structural investigations of the BTS powders were done at room temperature by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), high-resolution TEM (HRTEM), selected-area electron diffraction (SAED) and Raman spectroscopy analyses. Rietveld refinement of XRD data indicates that gradual replacement of titanium by tin in BaTiO3provokes a phase transition from tetragonal for 0 ≤x≤ 0.07 to cubic forx= 0.12, 0.15 and 0.20. The coexistence of tetragonal (P4mm) and cubic (Pm\overline 3m) crystal phases was established in powder with nominal composition BaTi0.9Sn0.1O3. The crystal phases determined by Rietveld refinement were confirmed by HRTEM and SAED analyses. The crystal structures of the BTS powders at short-range scale were studied by Raman spectroscopy, which shows tetragonal (P4mm) and a small fraction of orthorhombic (Pmm2) crystal phases for all the examined BTS powders, implying a lower local ordering when compared to the average symmetry.

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