Results 171 to 180 of about 5,722,673 (193)

Simultaneous Adsorption of Pb(Ii)-Cd(Ii), Pb(Ii)-Phenol, and Cd(Ii)-Phenol by Activated Carbon Cloth in Aqueous Solution

Water, Air, & Soil Pollution, 2014
The aim of the present work was to determine the effect of the simultaneous adsorption of lead(II)-cadmium(II), lead(II)-phenol, and cadmium(II)-phenol by activated carbon cloths (ACCs). Three commercial ACCs were characterized and tested for individual metal adsorption, and competitive adsorption experiments were carried out with the best ACC (AW1104).
Javier A. Arcibar-Orozco, Jose R. Rangel-Mendez, Paola E. Diaz-Flores   +2 more
openaire   +1 more source

A novel electrochemical sensor based on a glassy carbon electrode modified with dendrimer functionalized magnetic graphene oxide for simultaneous determination of trace Pb(II) and Cd(II)

Electrochimica Acta, 2019
In this work, a glassy carbon electrode (GCE) coated with poly(amidoamine) dendrimer functionalized magnetic graphene oxide (GO-Fe3O4-PAMAM) was applied for the simultaneous detection of Pb(II) and Cd(II) in environmental waters.
M. Baghayeri, H. Alinezhad, M. Fayazi, M. Tarahomi, R. Ghanei-Motlagh, B. Maleki   +5 more
semanticscholar   +1 more source

Carbonization and ball milling on the enhancement of Pb(II) adsorption by wheat straw: Competitive effects of ion exchange and precipitation.

Bioresource Technology, 2019
Straw biomass is a promising adsorbent for the removal of heavy metals. To improve its Pb(II) adsorption capacity and elucidate competition of adsorption mechanisms (e.g., ion exchange and precipitation), the Pb(II) adsorption mechanisms for wheat straw (
Yaoyao Cao, Weihua Xiao, Guanghui Shen, Guanya Ji, Yang Zhang, Chongfeng Gao, Lujia Han   +6 more
semanticscholar   +1 more source

??????????????????-????????????-?????????????????????? ???????????????????? Cu (II), Cd (II), Zn (II) ???? Pb (II) ?? ???????????? ???????? ???? ?????????????????? ????????????????????, ???????????????????????????? ??????????????????????????????????????

2022
The sorption of metal ions on silica with covalently grafted propylthioethyleamine groups was studied. Quantitative sorption is observed at ???? 6.5 (Cu), ???? 5.5 (Pb), ???? 7 (Zn and Cd). It was stated that composition of complexes that are formed at the surface is ML (for Zn and Cd) and ML??? (for Cu and Pb). The detection limit obtained by sorption
openaire   +1 more source

Sludge-based biochar activation to enhance Pb(II) adsorption

Fuel, 2019
In this study, sludge-based pyrolysis bio-char was obtained and activated with chemical activators (KOH and CH3COOK) and a physical activator (CO2).
Junjie Zhang, Jing’ai Shao, Qianzheng Jin, Ziqing Li, Xiong Zhang, Yingquan Chen, Shihong Zhang, Hanping Chen   +7 more
semanticscholar   +1 more source

Arabidopsis ACBP1 overexpressors ore Pb(II)-tolerant and accumulate Pb(II)

2012
In our recent paper in the Plant Journal, we demonstrated that Arabidopsis thaliana acyl-CoA-binding protein ACBP1 binds lead [Pb(II)], its mRNA is induced by Pb(II)-treatment and transgenic Arabidopsis overexpressing ACBP1 are conferred Pb(II) tolerance and accumulate Pb(II).
Xiao, S, Chye, ML
openaire   +1 more source

Performance of Pb(II) removal by an activated carbon supported nanoscale zero-valent iron composite at ultralow iron content.

Journal of Hazardous Materials, 2019
Activated carbon supported nanoscale zero-valent iron composite (NZVI/AC) at ultralow iron content was synthesized and used to remove Pb(II) from aqueous solution. The technical characterization revealed that the loaded amorphous NZVI nanoparticles had a
Xuejiao Liu, Dengguo Lai, Yin Wang
semanticscholar   +1 more source

Crystal and morphological phase transformation of Pb(II) to Pb(IV) in chlorinated water☆

Journal of Hazardous Materials, 2009
Herein, we show an important transformation of Pb(II) to Pb(IV) in chlorinated water under laboratory conditions. The study results will give an insight toward understanding how corrosion by-products on lead materials found in drinking water distribution systems develop and breakdown with time. The experiments were conducted to elucidate the morphology
Darren A, Lytle, Colin, White, Mallikarjuna N, Nadagouda, Adam, Worrall   +3 more
openaire   +2 more sources

Active and passive biosorption of Pb(II)using live and dead biomass of marine bacterium Bacillus xiamenensis PbRPSD202: Kinetics and isotherm studies.

Journal of Environmental Management, 2019
A highly lead(II) resistant (up to 2200 mg/l) bacterium PbRPSD202 was selected among 210 lead resistant bacteria isolated from marine environment of Paradeep Port, Odisha for possible biosoption of toxic Pb (II) ions from metals polluted environments ...
R. Mohapatra, P. Parhi, Sony Pandey, B. K. Bindhani, H. Thatoi, C. Panda   +5 more
semanticscholar   +1 more source

?????????????? ?????????????????????????????????????????????????? ???? ?????????????????????????? ?????????????????????? Pb(II) ??Cd(II) ???? ???????????? ??????????????????

2019
The paper proposes the results of studies conducted in order to optimize the removal of ions Pb (II) and Cd (II) process using polyhexamethylene guanidine (PGMG) from aqueous solutions. It is observed using the methods of polarography, infrared spectroscopy, pH meters that the formation of compounds of chemisorptions type of ions of metals is putted in,
openaire   +1 more source