Results 11 to 20 of about 775,901 (331)

Exsolution of oxygen impurity from diamond lattice and formation of pressurized CO2-I precipitates [PDF]

open access: yesCarbon Trends 11 (2023) 100270, 2023
Diamond single crystals showing Infra-red features of pressurized CO2-I phase were studied using Transmission Electron Microscopy (TEM) and tomography. Numerous O-containing precipitates with sizes up to 45 nm are observed. The absolute majority of these precipitates decorate dislocation loops or are located inside them; individual scattered ...
arxiv   +1 more source

Structural, Electrical and Optical Studies of ZnxCu1-xS (x = 0.8, 0.6, 0.4 and 0.2) Nanoparticles

open access: yesEast European Journal of Physics, 2023
ZnxCu1-xS (x = 0.8, 0.6, 0.4 and 0.2) nanoparticles were synthesized by microwave assisted chemical precipitation method. The as-synthesized nanoparticles were characterized by X ray diffraction, SEM and TEM analysis to study the crystal structure, size ...
Moly M. Rose   +3 more
doaj   +1 more source

Evaluation of advanced phosphorus removal from slaughterhouse wastewater using industrial waste-based adsorbents

open access: yesWater Science and Technology, 2021
Slaughterhouse wastewater (SWW) contains high concentrations of phosphorus (P) and is considered as a principal industrial contaminant that causes eutrophication.
Shengdan Sun   +5 more
doaj   +1 more source

Microstructure-Modulated Antibacterial Performance of Chemically Precipitated SnO2 Nanoparticles [PDF]

open access: yesJournal of Applied Sciences and Nanotechnology, 2023
Tin oxide (SnO2) nanoparticles were synthesized via a facile chemical precipitation route using tin chloride (SnCl2•2H2O) as precursor and ammonia as precipitant. The as-synthesized nanoparticles were subjected to post-calcination at 300°C, 400°C and 500°
Shatha Batros, Mohammed Ali, Ali Addie
doaj   +1 more source

Recovery of Rubidium and Cesium Resources from Brine of Desalination through t-BAMBP Extraction

open access: yesMetals, 2020
50 billion cubic meters of brine every year creates ecological hazards to the environment. In order to reuse brine efficiently, rubidium and cesium were recovered in this experiment.
Wei-Sheng Chen   +5 more
doaj   +1 more source

Synthesis and characterization of polypyrrole-coated iron oxide nanoparticles

open access: yesMaterials Research Express, 2021
Conducting polymers are gaining importance in recent years for their remarkable electrical and ionic properties and so, in order to further improve the fundamental properties, they are being integrated with iron oxide (Fe _3 O _4 ) nanoparticles (NPs ...
J Anita Lett   +8 more
doaj   +1 more source

Systematic front distortion and presence of consecutive fronts in a precipitation system [PDF]

open access: yes, 2006
A new simple reaction-diffusion system is presented focusing on pattern formation phenomena as consecutive precipitation fronts and distortion of the precipitation front.The chemical system investigated here is based on the amphoteric property of ...
Izsák, F.   +3 more
core   +4 more sources

Asphaltene precipitation under controlled mixing conditions in a microchamber [PDF]

open access: yesChemical engineering journal, 2022, 2022
Solvent exchange is a controlled process for dilution-induced phase separation. This work utilizes the solvent exchange method to reveal the effect of the mixing dynamics on the asphaltene precipitation process under 20 different mixing conditions using a model system of n-heptane and asphaltene in toluene.
arxiv   +1 more source

Fines Formation (and Prevention) in Seeded Precipitation Processes

open access: yesKONA Powder and Particle Journal, 2014
An overview of three studies on seeded precipitation in a fluidised bed reactor (FBR) is presented. The objective of using the FBR is to remove dissolved metals as precipitated metal salts onto a seed surface.
Alison Lewis
doaj   +1 more source

The impact of outgassing of CO2 and prior calcium precipitation to the isotope composition of calcite precipitated on stalagmites. Implications for reconstructing climate information from proxies [PDF]

open access: yesChemical Geology 589, 120676, 2022, 2021
Degassing of CO2 and precipitation of calcite to the surface of stalagmites can strongly impact isotope signals imprinted into the calcite of these speleothems. Here, we show that in all the variety of conditions occurring in nature only two distinct types of degassing exist.
arxiv   +1 more source

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