scholarly journals Effect of Modified Zeolite β in the Hydrogenation of Anisole and Acetophenone Reaction

ACS Omega ◽  
2021 ◽  
Author(s):  
V. L. Mangesh ◽  
Tamizhdurai Perumal ◽  
Santhana Krishnan Perumal ◽  
Kumaran Rajendran ◽  
Narayanan Subramanian ◽  
...  
Keyword(s):  
Modified Zeolite ◽  
Zeolite Β

Formation of 1,3-butadiene from ethanol in a two-step process using modified zeolite-β catalysts

2016 ◽  
Vol 514 ◽  
pp. 192-202 ◽  
Author(s):  
Alexander Klein ◽  
Kristina Keisers ◽  
Regina Palkovits
Keyword(s):  
Step Process ◽  
Modified Zeolite ◽  
Zeolite Β

ELECTROCHEMICAL DETECTION OF FLUOXETINE IN WATER USING A SILVER MODIFIED ZEOLITE-CARBON NANOFIBER ELECTRODE

2017 ◽  
Vol 16 (4) ◽  
pp. 829-836
Author(s):  
Florica Manea ◽  
Magdalena Ardelean ◽  
Aniela Pop ◽  
Rodica Pode ◽  
Joop Schoonman
Keyword(s):  
Electrochemical Detection ◽  
Carbon Nanofiber ◽  
Modified Zeolite

ION Exchange Characterisation of Modified Zeolite

1992 ◽  
Vol 26 (9-11) ◽  
pp. 2269-2272 ◽  
Author(s):  
Š Cerjan-Stefanovic ◽  
M. Kaštelan-Macan ◽  
T. Filipan
Keyword(s):  
Drinking Water ◽  
Ion Exchange ◽  
Anion Exchange ◽  
Natural Zeolite ◽  
Deionized Water ◽  
Isomorphous Substitution ◽  
Waste Waters ◽  
Modified Zeolite ◽  
Water Drinking

Isomorphous substitution of phosphorus into a natural zeolite affords the possibility to change the overall framework charge from negative to positive. The substances so created should be used for purification of waste waters. The work describes the preparation of phosphated zeolite, their characterisation and examples of their anion exchange of NO3 on observed in deionized water, drinking water and in the solution containing varying amounts of nitrate.

scholarly journals Zeolite NaP1 Functionalization for the Sorption of Metal Complexes with Biodegradable N-(1,2-dicarboxyethyl)-D,L-aspartic Acid

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2518
Author(s):  
Dorota Kołodyńska ◽  
Yongming Ju ◽  
Małgorzata Franus ◽  
Wojciech Franus
Keyword(s):  
Experimental Data ◽  
Aspartic Acid ◽  
Ph Value ◽  
Complexing Agents ◽  
X Ray Diffraction ◽  
Experimental Conditions ◽  
Modified Zeolite ◽  
X Ray ◽  
Slow Release Fertilizers ◽  
Pseudo Second Order

The possibility of application of chitosan-modified zeolite as sorbent for Cu(II), Zn(II), Mn(II), and Fe(III) ions and their mixtures in the presence of N-(1,2-dicarboxyethyl)-D,L-aspartic acid, IDHA) under different experimental conditions were investigated. Chitosan-modified zeolite belongs to the group of biodegradable complexing agents used in fertilizer production. NaP1CS as a carrier forms a barrier to the spontaneous release of the fertilizer into soil. The obtained materials were characterized by Fourier transform infrared spectroscopy (FTIR); surface area determination (ASAP); scanning electron microscopy (SEM-EDS); X-ray fluorescence (XRF); X-ray diffraction (XRD); and carbon, hydrogen, and nitrogen (CHN), as well as thermogravimetric (TGA) methods. The concentrations of Cu(II), Zn(II), Mn(II), and Fe(III) complexes with IDHA varied from 5–20 mg/dm3 for Cu(II), 10–40 mg/dm3 for Fe(III), 20–80 mg/dm3 for Mn(II), and 10–40 mg/dm3 for Zn(II), respectively; pH value (3–6), time (1–120 min), and temperature (293–333 K) on the sorption efficiency were tested. The Langmuir, Freundlich, Dubinin–Radushkevich, and Temkin adsorption models were applied to describe experimental data. The pH 5 proved to be appropriate for adsorption. The pseudo-second order and Langmuir models were consistent with the experimental data. The thermodynamic parameters indicate that adsorption is spontaneous and endothermic. The highest desorption percentage was achieved using the HCl solution, therefore, proving that method can be used to design slow-release fertilizers.

Fabrication and Characterizations of Zeolite β-filled Polyethylene Composite Films

2012 ◽  
Vol 26 ◽  
pp. 1-10 ◽  
Author(s):  
Zhen Huang ◽  
Yu-hua Guo ◽  
Tian-ming Zhang ◽  
Xiao-hong Zhang ◽  
Li-ying Guo
Keyword(s):  
Composite Films ◽  
Polyethylene Composite ◽  
Zeolite Β

Photolysis and heterogeneous solar photo-Fenton for slaughterhouse wastewater treatment using an electrochemically modified zeolite as catalyst

2021 ◽  
pp. 1-20
Author(s):  
Laura Garduño-Pineda ◽  
Marcos J. Solache-Ríos ◽  
Verónica Martínez-Miranda ◽  
Ivonne Linares-Hernández ◽  
Elia Alejandra Teutli-Sequeira ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Slaughterhouse Wastewater ◽  
Modified Zeolite
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