Results 101 to 110 of about 6,629 (204)

Mineralogical and Crystalochemical Characterization of the Sepiolite Deposit from Andrichi (Pranjani Basin, Serbia) [PDF]

open access: yes, 2014
Depto. de Mineralogía y PetrologíaFac.
García Romero, Emilia   +3 more
core   +1 more source

Removal of inorganic contaminants from aqueous solutions using fibrous clay-supported zero-valent iron nano-particle composites [PDF]

open access: yesعلوم محیطی, 2017
Introduction: In recent years, zero-valent iron has drawn a great attention in wastewater treatment and ground water remediation. It can effectively remove priority water contaminants, but there are some disadvantages in the use of nZVI particles, such ...
Somayeh Bakhtiari, Sina Choghadi
doaj  

Indigo in the nanochannels of zeolite L : towards a new type of colorant [PDF]

open access: yes, 2018
A host-guest based colorant was synthesized by intercalating indigo molecules into the nanochannels of zeolite L (ZL). Reductive washing thereby ensured the efficient and selective removal of non-intercalated indigo molecules.
Brühwiler, Dominik   +7 more
core   +1 more source

Widespread formation of cherts during the early Eocene climate optimum [PDF]

open access: yes, 2007
Radiolarian cherts in the Tethyan realm of Jurassic age were recently interpreted as resulting from high biosiliceous productivity along upwelling zones in subequatorial paleolatitudes the locations of which were confirmed by revised paleomagnetic ...
Kent, Dennis V., Muttoni, Giovanni
core   +2 more sources

CHARACTERIZATION OF CLAYS USED FOR MEDICINAL PURPOSES IN THE ARCHIPELAGO OF CAPE VERDE [PDF]

open access: yes, 2009
Amostras de duas argilas comercializadas para fins medicinais (alívio de afecções do foro gastrointestinal, tratamento de abcessos, furúnculos e feridas, assim como para afecções da pele e aplicações cosméticas), e vendidas numa loja de produtos naturais
Gomes, Celso   +2 more
core  

Palygorskite in Eocene-Oligocene lagoonal environment, Yucatán, Mexico

open access: yesRevista Mexicana de Ciencias Geológicas, 2019
Palygorskite occurs in the Yucatán peninsula as palygorskite-rich mudstone in middle Eocene Chichén-Itzá formation to Oligocene. Its lower limit of deposition is the lower Eocene Pisté formation or the Xbacal member of the middle Eocene Chichén-Itzá ...
Liberto de Pablo-Galán
doaj  

Saumures profondes en Atlantique Central durant l'Albo-Aptien : apport des formations à palygorskite.

open access: yes, 2012
National audienceEn milieu océanique profond la palygorskite constitue un proxy indiquant des eaux de fond salées, de type ...
Thiry, Médard
core   +1 more source

Arcillas fibrosas anómalas en encostramientos y sedimentos superficiales: características y génesis (Esquivias, Cuenca de Madrid)

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2003
Mineralogy, chemical composition and textures of silcretes, calcretes/palustrine limestones and argillaceous beds are studied to consider the features and the genesis of fibrous-clay minerals.
Bustillo, M. A., García Romero, E.
doaj  

Palygorskite-supported sulfide-modified nanoscale zero-valent iron for Congo red removal

open access: yesEnvironmental Pollutants & Bioavailability, 2019
In this work, the optimum conditions for the synthesis of nano zero valent iron sulfide were studied in detail using orthogonal experiment. The palygorskite-supported sulfide-modified nanoscale zero-valent iron (S-nZVI/P) was prepared, characterized, and ...
Guixiang Quan   +4 more
doaj   +1 more source

Exploration of cephalexin adsorption mechanisms onto bauxite and palygorskite and regeneration of spent adsorbents with cold plasma bubbling

open access: yesApplied Water Science
The aim of the present study was the direct comparison of two popular minerals, bauxite and palygorskite, as adsorbents for the removal of cephalexin (CPX) from aqueous solutions and the regeneration of the spent adsorbents through cold atmospheric ...
S. Giannoulia   +2 more
doaj   +1 more source

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