Pb(II) removal from aqueous solution by polyacrylic acid stabilized zero-valent iron nanoparticles: process optimization using response surface methodology

Esfahani, Amirhosein Ramazanpour; Firouzi, Ahmad Farrokhian; Sayyad, Gholamabbas; Kiasat, Ali Reza; Alidokht, Leila; Khataee, Alireza

doi:10.1007/s11164-012-0975-1

Cited by 43 publications

(10 citation statements)

References 39 publications

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“…At higher Pb and Cd ion concentrations, the available adsorption sites decreased compared to the moles of Pb and Cd present at low concentration, and thus the adsorption of Cd decreased. Similar observations have been made by and Esfahani et al () for Pb and Boparai et al () and Boparai et al () for Cd removal efficiency.…”

Section: Discussionsupporting

confidence: 90%

Reduction of soil heavy metal bioavailability by nanoparticles and cellulosic wastes improved the biomass of tree seedlings

Tafazoli

Hojjati

Biparva

et al. 2017

J. Plant Nutr. Soil Sci.

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The purpose of this study was to use zero‐valent iron nanoparticles (nZVI) and cellulosic wastes to reduce bioavailability of lead (Pb) and cadmium (Cd), and to establish Persian maple seedlings (Acer velutinum Bioss.) in contaminated soil. One‐year‐old seedlings were planted in pots filled with unpolluted soil. Lead [Pb(NO3)2] and Cd [Cd(NO3)2] were added with concentrations of 0 (Control), 100 (Pb100), 200 (Pb200), and 300 (Pb300) mg kg−1 and 10 (Cd10), 20 (Cd20), and 30 (Cd30) mg kg−1. Cellulosic wastes were mixed with soil at the same time of planting [four levels: 0, 10 (W1), 20 (W2), 30 (W3) g 100 g−1 soil]. The nZVI was prepared by reducing Fe3+ to Fe0 and injected to pots [four levels: 0, 1 (N1), 2 (N2), and 3 (N3) mg kg−1]. Height, diameter, biomass, tolerance index of seedlings, bioavailability of heavy metals in soil, and removal efficiency of amendments were measured. The highest values of seedling characteristics were observed in N3. The highest removal efficiency of Pb (Pb100: 81.95%, Pb200: 75.5%, Pb300: 69.9%) and Cd (Cd10: 92%, Cd20: 73.7%, Cd30: 68.5%) was also observed in N3. The use of nZVI and cellulosic waste could be a proper approach for seedling establishment in forests contaminated with heavy metals.

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Section: Discussionsupporting

confidence: 90%

Reduction of soil heavy metal bioavailability by nanoparticles and cellulosic wastes improved the biomass of tree seedlings

Tafazoli

Hojjati

Biparva

et al. 2017

J. Plant Nutr. Soil Sci.

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“…used for optimization of experimental parameters as it is not only time and reagent saving, but it also provides information about the interactions of parameters (Duarte and Duarte, 2011;Leardi, 2009). Experimental design for process optimization via response surface methodology has been studied by many researchers (Bingol and Kulcu, 2011;Liu et al, 2012;Esfahani et al (2014); Djafarzadeh et al, 2013;Akalin and Karagoz, 2014). Available experimental designs for process optimization include the following: full factorial design (FFD), Plackett-Burman design (PBD), Taguchi design (TD), cental composite design (CCD) and Box-Behnken design (BBD) (Sharif et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Sage oil extraction and optimization by response surface methodology

Akalın

Tekin

Akyüz

et al. 2015

Industrial Crops and Products

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“…Some other studies were identified regarding the removal of several other heavy metal contaminants, namely lead [34,35,36] for water bodies remediation, copper [38,39], different zinc species [40] from water bodies, nickel ions from wastewater [41] and the removal of cadmium ions [42].…”

Section: Removal Of Heavy Metalsmentioning

confidence: 99%