A metal-organic truncated octahedron (termed MOP-28) has been constructed from six rigid square-shaped Cu2(CO2)4 paddle-wheel building units and twelve 2,2':5',2' '-terthiophene-5,5' '-dicarboxylate (TTDC) linkers. TTDC linker in the cis,cis conformation provides the critical 90 degrees linkage for this unique construction. The porous structure of MOP-28 is maintained even after the removal of ...

Problems, which may arise when low-temperature nitrogen adsorption is used for the characterisation of porous materials, are discussed in this review. Continuous or discontinuous manometric techniques can be employed for nitrogen adsorption measurements at 77 K. For pore structure analysis, the nitrogen adsorption–desorption isotherms should be determined over the widest possible range of relat...

the performance of msu-s and its forms modified with phosphotungstic acid (hpw) and nickel (ni) for the desulfurization and denitrogenation of model diesel fuel were studied. according to the results of the characteristic tests (n2 adsorption-desorption, xrd, sem, and nh3-tpd), heteropoly acid incorporation causes higher acidity along with a negligible loss of structural aspects, while ni impre...

The present work was undertaken to evaluate the feasibility of nickel (II) removal from aqueous solution by adsorption onto a biopolymer adsorbent. The adsorbent was prepared using modification of mesoporous silicate SBA-15 with alginate biopolymer (alginateSBA-15) by encapsulation method. Morphological structure of the obtained nanocomposite adsorbent was characterized by XRD, scanning electro...

In this study, mesoporous MCM-41 has been modified by incorporation of aluminum ion asa rapid, simple and inexpensive method for modification. The adsorbent is characterized usingpowder X-ray diffraction and nitrogen adsorption-desorption isotherm data. The distributioncoefficient of cadmium ion on the mesoporous aluminosilicates has been enhanced with theincrease of the aluminum in the framewo...

Municipal solid waste used for landfill becomes stabilized, or aged, some years after placement, and can be safely excavated; the term 'mineralized refuse' is used in this study. The adsorptions of phosphorus, and the nitrification of the mineralized refuse and clay, were investigated by batch incubation. The variation of phosphorus adsorption in the mineralized refuse was fitted to the Freundl...

In this research, the potential of M2+/Al intercalated chitosan has been evaluated and good ability to reduce dyes in an aqueous solution. was prepared by anion exchange method coprecipitation a nitrogen atmosphere. Selectivity adsorption studied maintain for particle size direct (direct green, red, yellow). To evaluate process, conducted with kinetic, isotherm, thermodynamic parameters. The ki...

Condensate porosity in porous materials has a significant influence on comfort, energy consumption, and material’s strength durability. The variation of the moisture content material for given relative humidity describes storage capacity to be determined experimentally through water sorption isotherm. However, characterisation isotherm is very time-consuming, mostly high conditions, which may c...

Dabai (Canarium odontophyllum) nutshells have considerable potential to be used as a viable precursor for biomass-based activated carbon. The material was carbonized at temperature of 700 °C 2 h, heating rate 10 °C/min under nitrogen gas flow. char analyzed the following ways: percentage yield, ash content, Fourier transform infrared spectroscopy, scanning electron microscopy with energy disper...