Removal of Heavy Metals from Polluted Solutions by Zeolitic Adsorbents: a Review
Sign Up to like & getrecommendations! Published in 2020 at "Environmental Processes"
DOI: 10.1007/s40710-020-00476-x
Abstract: The usage of zeolites in wastewater treatment has been extended in the two recent decades. This review investigates recent developments on the zeolite usage in the removal of heavy metals from polluted solutions. Various databases… read more here.
Keywords: metals polluted; zeolitic adsorbents; heavy metals; removal heavy ... See more keywords
Characterization and cracking performance of zirconium-modified Y zeolite
Sign Up to like & getrecommendations! Published in 2021 at "Catalysis Communications"
DOI: 10.1016/j.catcom.2020.106171
Abstract: Abstract Zirconium-modified Y zeolites (ZrUSY) were prepared by impregnation of the zeolite with anhydrous-ethanol and aqueous ion exchange methods. The ZrUSY samples were characterized by powder X-ray diffraction, nitrogen physisorption, and Fourier transform infrared spectroscopy.… read more here.
Keywords: characterization cracking; cracking performance; performance zirconium; modified zeolite ... See more keywords
Efficient degradation of 2-methoxyphenol using heterogeneous-homogeneous synergistic activated persulfate with modified clinoptilolite + heat
Sign Up to like & getrecommendations! Published in 2020 at "Chemical Engineering Journal"
DOI: 10.1016/j.cej.2020.125863
Abstract: Abstract An easily obtainable and cheap activator was obtained with natural clinoptilolite, which was easy to be modified with a ferrous sulfate solution. The modification can greatly improve the Fe/C ratio of the zeolite surface… read more here.
Keywords: degradation; homogeneous synergistic; heterogeneous homogeneous; modified zeolite ... See more keywords
Modified zeolite adsorbents for the remediation of potash brine-impacted groundwater: Built-in dual functions for desalination and pH neutralization
Sign Up to like & getrecommendations! Published in 2017 at "Desalination"
DOI: 10.1016/j.desal.2017.06.009
Abstract: Abstract Clinoptilolite zeolites were modified through acid treatment followed by Ca(OH) 2 conditioning. The modified zeolite adsorbent (H-Zeo-CaOH) has built-in dual functions for desalination and pH neutralization. The modified zeolites were evaluated using synthetic saline… read more here.
Keywords: groundwater; dual functions; brine; desalination ... See more keywords
Propane activation on Zn-modified zeolite. The effect of the nature of Zn-species on the mechanism of H/D hydrogen exchange of the alkane with Brønsted acid sites
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Catalysis"
DOI: 10.1016/j.jcat.2019.09.006
Abstract: Abstract Zn-modified zeolites exhibit high activity for the aromatization of C2+ alkanes. To understand the effect of Zn-species of different nature on propane molecules activation and transformation, the H/D hydrogen exchange of zeolite Bronsted acid… read more here.
Keywords: hydrogen exchange; effect; acid sites; propane ... See more keywords
Microbial action and mechanisms for Cr(VI) removal performance by layered double hydroxide modified zeolite and quartz sand in constructed wetlands.
Sign Up to like & getrecommendations! Published in 2019 at "Journal of environmental management"
DOI: 10.1016/j.jenvman.2019.06.017
Abstract: This study was conducted to evaluate the performance underlying the removal of hexavalent chromium Cr(VI) associated with Zn-layered double hydroxides (Zn-LDHs)-modified substrates utilized in simulated constructed wetlands (CWs) from a microbial perspective. To accomplish this,… read more here.
Keywords: removal; microbial action; modified zeolite; ldhs ... See more keywords
Dispersive solid-phase extraction using polyaniline-modified zeolite NaY as a new sorbent for multiresidue analysis of pesticides in food and environmental samples.
Sign Up to like & getrecommendations! Published in 2017 at "Talanta"
DOI: 10.1016/j.talanta.2016.11.003
Abstract: The applicability of polyaniline (PANI)-modified zeolite NaY as a sorbent for multi-class pesticides extraction was investigated. The sorbent had a sorption capacity of 833mgkg-1 sorbent and preconcentration factor of 42 in the mixture of twenty… read more here.
Keywords: sorbent; extraction; solid phase; zeolite nay ... See more keywords
Adsorption of Nickel, Ni(II), in Aqueous Solution by Modified Zeolite as a Cation-Exchange Adsorbent
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Chemical & Engineering Data"
DOI: 10.1021/acs.jced.9b00868
Abstract: In this study, the modified zeolite (MZ) and zeolite 3A (RZ) were used as adsorbents for removal of Ni(II) from aqueous solution. Both adsorbents were characterized using scanning electron microscopy, Fourier transform infrared spectroscopy, energy-dispersive… read more here.
Keywords: adsorption; zeolite; modified zeolite; spectroscopy ... See more keywords
Polyethylenimine-Modified Zeolite 13X for CO2 Capture: Adsorption and Kinetic Studies
Sign Up to like & getrecommendations! Published in 2019 at "ACS Omega"
DOI: 10.1021/acsomega.9b02047
Abstract: A class of high molecular weight polyethylenimine (PEI)-modified zeolite 13X adsorbents were synthesized by varying the concentration of imines and screened for preliminary investigation of CO2 capture studies. The impregnated molecular amine zeolite composite was… read more here.
Keywords: adsorption; co2 capture; pei; zeolite 13x ... See more keywords
Study on the adsorption of nitrogen and phosphorus from biogas slurry by NaCl-modified zeolite
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DOI: 10.1371/journal.pone.0176109
Abstract: A NaCl-modified zeolite was used to simultaneously remove nitrogen and phosphate from biogas slurry. The effect of pH, contact time and dosage of absorbants on the removal efficiency of nitrogen and phosphate were studied. The… read more here.
Keywords: nitrogen; adsorption; modified zeolite; nacl modified ... See more keywords
Performance and mechanism of lanthanum-modified zeolite as a highly efficient adsorbent for fluoride removal from water.
Sign Up to like & getrecommendations! Published in 2022 at "Chemosphere"
DOI: 10.2139/ssrn.4010659
Abstract: Defluoridation of water is still challenging due to the fluoride pollution of both groundwater and surface water worldwide. In this study, lanthanum-modified zeolite (LMZ) was synthesized from coal fly ash and was investigated for fluoride… read more here.
Keywords: adsorption; modified zeolite; water; fluoride removal ... See more keywords