Results 31 to 40 of about 335,817 (304)
When spectroscopy fails: The measurement of ion pairing [PDF]
Spectroscopic techniques such as UV/vis, NMR, and Raman are powerful tools for the investigation of chemical speciation in solution. However, it is not widely recognized that such techniques do not always provide reliable information about ion ...
Hefter, G.
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The need to remove or recover metal ions from industrial wastewater has been established in financial as well as environmental terms. This need has been proved financially in terms of cost saving through metal reuse or sale and environmentally as heavy ...
A. M. Rahatgaonkar, N. R. Mahore
doaj +1 more source
Preparation of Amidoxime Polyacrylonitrile Chelating Nanofibers and Their Application for Adsorption of Metal Ions. [PDF]
Polyacrylonitrile (PAN) nanofibers were prepared by electrospinning and they were modified with hydroxylamine to synthesize amidoxime polyacrylonitrile (AOPAN) chelating nanofibers, which were applied to adsorb copper and iron ions. The conversion of the
Hsieh, You-Lo +5 more
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Valorization of keratin biofibers for removing heavy metals from aqueous solutions [PDF]
Four common waste keratin biofibers (human hair, dog hair, chicken feathers, and degreased wool) have been used as biosorbents for the removal of heavy metal ions from aqueous solutions. Different parameters of the biosorption processes were optimized in
Carrillo Navarrete, Fernando +3 more
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A review on performance of waste materials in self compacting concrete (scc) [PDF]
Self-compacting concrete (SCC) was first developed in late 80’s in Japan. SCC is well known for its self-consolidation and able to occupy spaces in the formwork without any vibration and become new interesting topic in Construction and Building Materials
Ismail, Isham +2 more
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Thermodynamic Study on the Adsorption of Pb2+ and Zn2+ From Aqueous Solution by Human Hair
Adsorption of Pb(II) and Zn(II) ions from aqueous solutions was studied in a batch system using modified human hair. The optimum conditions for the adsorption of Pb(II) and Zn(II) ions from aqueous solution by human hair were investigated by considering ...
A. S. Ekop, N. O. Eddy
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Two benzimidazole-based conjugated polyelectrolytes (+)-PPBIPV and (-)-PPBIPV which have opposite charges on their side chains were synthesized via Heck coupling reaction and characterized by 1H-NMR, UV-vis and PL spectroscopy. These two polyelectrolytes
Wei Yuhan +7 more
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Stress distribution of secondary bending in single-lap bolted joints with dissimilar joining plates and plate types [PDF]
Single-lap joints are an important class of bolted joint in the aerospace and civil engineering sectors. This type of joint is preferred as it can reduce weight and hence help to optimize fuel efficiency.
Ahmad, Hilton
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Adsorption of Zinc and Copper Ions by the Solid Waste of the Olive Oil Industry
The adsorption capacity of dried olive oil husks (SWOOI) for zinc ions (Zn 2+ ) and copper ions (Cu 2+ ) was studied. It was verified that the Freundlich and Langmuir isotherms describe the adsorption of Cu 2+ and Zn 2+ ions reasonably well. Up to 90% of
Sameer Al-Asheh, Fawzi Banat
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Iron phosphate-modified pollen microspheres (pollen@FePO4) were prepared and applied as sorbents for the removal of heavy metals (Cd2+ and Pb2+) from the aqueous solution.
Zhang Xiaoxing +6 more
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