Results 21 to 30 of about 439,357 (302)

Pectin-Tin(IV) molybdosilicate: An ecofriendly cationic exchanger and its potential for sorption of heavy metals from aqueous solutions [PDF]

open access: yes, 2016
A novel composite cation exchanger of biopolymer Pectin and Tin(IV) molybdosilicate heteropoly acid salt were prepared by co-precipitation technique. Physico-chemical characterization of Pectin-Tin(IV) molybdosilicate was performed using instrumental ...
Aparna Mohan   +2 more
core   +2 more sources

Study on the physical and chemical properties of lead passivating agent in soil

open access: yesScientific Reports, 2023
With the rapid development of industry, heavy metal pollution has seriously damaged the health of soil, and heavy metals spread through the food chain, posing a threat to human health. The firm existence of heavy metals in soil under earthy conditions is
Chengyu Han, Juan Li, Jianglong Shen
doaj   +1 more source

Elemental Diffusion Behaviour of Biomedical Grade Titanium Alloy through Thermal Oxidation [PDF]

open access: yes, 2016
Major issues related to implant failure are wear debris and metal ions release where Titanium-Aluminium-Niobium alloys still face those problems despite of better biocompatibility.
Aini, Abdul Kadir   +6 more
core   +1 more source

Fluorescent optical fibre chemosensor for the detection of mercury [PDF]

open access: yes, 2016
This work aims to develop a stable, compact and portable fibre optic sensing system which is capable of real time detection of the mercury ion (II), Hg2+.
Grattan, K. T. V.   +3 more
core   +1 more source

Experimental study on solidification/stabilization of heavy metal lead and chromium sludge solidified by cement-based materials [PDF]

open access: yesMATEC Web of Conferences, 2023
To explore the strength change law and solidification mechanism of cement solidified heavy metal lead and chromium contaminated soil, ordinary Portland cement (OPC) and magnesium phosphate cement (MPC) were used for solidification/stabilization treatment.
Zheng Chao   +3 more
doaj   +1 more source

Functionalized sepiolite for heavy metal ions adsorption

open access: yesDesalination, 2008
Abstract Surface modification of clays has become increasingly important due to the practical applications of clays such as fillers and adsorbents. The surface modification of sepiolite with [3-(2-aminoethylamino)propyl]trimethoxysilane has been employed. The modified sepiolite surface was investigated by FTIR, XRD and DTA/TG analysis.
Doğan, Mehmet   +5 more
openaire   +4 more sources

Adsorption of Copper, Zinc and Nickel Ions from Single and Binary Metal Ion Mixtures on to Chicken Feathers

open access: yesAdsorption Science & Technology, 2002
Certain industries often produce mixtures of heavy metal ions in their waste products. Because of the nature of heavy metal ions and the adsorption process, such metal ions can compete with each other for the sorption sites on an adsorbent during ...
Sameer Al-Asheh   +2 more
doaj   +1 more source

Application of Ion Exchange Resin Capsules in Water Pollution Source Investigating in Taichung Area, Central Taiwan

open access: yesEngineering Proceedings, 2023
In central Taiwan, due to the complex urban regions and the distribution of industrial and agricultural areas, there are high potential risks of irrigation water pollution caused by urban drainage or industrial wastewater.
Yun-Wei Tan, Feng-Wen Chen
doaj   +1 more source

Pyridine Derivatives as Fluorescent Sensors for Cations

open access: yesChemistry Proceedings, 2023
A fluorescence grating sensor based on a pyridine derivative was synthesized. The results showed that it can rapidly identify and detect toxic heavy metal ions, such as Cr2+, Hg2+, Ni2+ and Co2+.
Ikram Baba-Ahmed   +6 more
doaj   +1 more source

Heavy Molecular and Metallic Ions in the Magnetosphere

open access: yesSpace Science Reviews
AbstractObservations and present knowledge of heavy ions with mass ≥ 27 in the magnetosphere are reviewed. There are four ultimate sources of these heavy ions: the solar wind (mainly high charge-state atomic ions), the ionosphere (mainly molecular ions), the atmospheric metal layers that originate ultimately from ablation of meteoroids and possibly ...
M. Yamauchi   +13 more
openaire   +4 more sources

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