Synthesised magnetic nanoparticles coated zeolite (MNCZ) for the removal of arsenic (As) from aqueous solution

Salem, T. M.; Hu, Xialin; Yin, Da

doi:10.1080/17458080.2012.677549

Cited by 64 publications

(14 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This increase the chance of synthesized material to adsorb both kinds of chargeable pollutants (Cr -6 and Pb +2 ) especially at neutralization. This study revealed that compared to other adsorbent materials (Liu et al, 2008;Salem et al, 2014), the prepared MNPs-HA exhibited remarkable enhancement in different chargeable heavy metals. In addition to, the synthesized material (FeMNPs -HA) with adsorbed different chargeable pollutants could be easily desorbed from water with magnetic separations at very low magnetic field gradients (Liu et al, 2008), which can confidently decrease water treatment costs.…”

Section: Influence Of Pollutant Concentrationmentioning

confidence: 81%

Application of Functionalized Iron Magnetic Nanoparticles (γfe2o3) by Humic Acid for Elimination of Anionic and Cationic Pollutants from Wastewater تطبیق حبیبات أکسید الحدید المغناطیسیه المتناهیة الصغر والمشبعه بحمض الهیومیک فی ازالة الملوثات الانیونیه والکاتیونیه من المیاه العادمه

Salem

2020

Journal of Soil Sciences and Agricultural Engineering

View full text Add to dashboard Cite

Due to expensive costs in wastewater treatment, humic acid (HA) functionalized onto Fe2O3 magnetic nanoparticles (FeMNPs-HA) was synthesized in this study to remove Cr-6 and Pb +2 from wastewater. FeMNPs-HA was synthesized by the co-precipitation method for cheap and eco-friendly materials. FTIR and TGA were used for the characterization of FeMNPs-HA. FTIR showed similar bands for both HA and MNPs-HA and this indicated that HA was successively functionalized at FeMNPs. Moreover, TGA analysis showed high stability of material synthesized, since loss of weight began over 600 °C. Batch adsorption experiment was conducted to state the optimum conditions for removal of positive and negative ions (Pb +2 and Cr-6) from the aqueous solution using FeMNPs-HA. Adsorption of the studied metals onto FeMNPs-HA reached equilibrium in less than5 minutes, whereas the adsorption process wasn't affected by pollutants concentrations. Langmuir adsorption model was suitable to explain the sorption process of Pb +2 and Cr-6 onto MNPs-HA with maximum adsorption capacities reached 99.99 mg g-1. The FeMNPs-HA proved to has the capability for elimination more than 99% of Cr-6 and Pb +2 from the wastewater at optimized pH. Synthesized material was applied for toxic metals elimination from industrial wastewater (IWW), FeMNPs-HA showed high removal efficiency for Cd, Cr and Ni. Based on the adsorption data; FeMNPs-HA could be considered as an efficient material for wastewater purification from heavy metals regardless their charge.

show abstract

Section: Influence Of Pollutant Concentrationmentioning

confidence: 81%

Application of Functionalized Iron Magnetic Nanoparticles (γfe2o3) by Humic Acid for Elimination of Anionic and Cationic Pollutants from Wastewater تطبیق حبیبات أکسید الحدید المغناطیسیه المتناهیة الصغر والمشبعه بحمض الهیومیک فی ازالة الملوثات الانیونیه والکاتیونیه من المیاه العادمه

Salem

2020

Journal of Soil Sciences and Agricultural Engineering

View full text Add to dashboard Cite

show abstract

“…The results of this study indicate that minimum concentration of Cd, As, Pb and Cr were observed in treatments that contain iron oxide, modified hairs, zeolite, and Mn. In the literature, many scientists have reported the efficiency of the iron oxide, modified hairs, zeolite, and Mn in reducing heavy metal toxicity [6,[52][53][54]. The treatments that contained MHs and iron oxide were statistically highly significant in reducing the available and total HMs and metalloids in plants and soil followed by the treatments that contained zeolite and KMnO 4 .…”

Section: Discussionmentioning

confidence: 99%

“…High amounts of Cd, As, Pb, and Cr were adsorbed into the soil and reduced the available fraction of the above HMs in soil solution. KMnO 4 has been reported to reduce the availability of Cr, Pb, Cd, and As through adsorption when it is coated on the surface of different materials [65][66][67][68][69], while zeolite has the capability to adsorb Pb, Cd, As, and Cr [53,[70][71][72][73][74]. We coated KMnO 4 on the surface of zeolite so that it can increase the surface area and produce a more negative charge on the surface of the coated zeolite.…”

Section: Discussionmentioning

confidence: 99%

Effective Amendments on Cadmium, Arsenic, Chromium and Lead Contaminated Paddy Soil for Rice Safety

Ullah

Ying

et al. 2020

Agronomy

View full text Add to dashboard Cite

Contamination of paddy soils with heavy metals and metalloids poses a risk to human health through the food chain. For safe agricultural production in contaminated paddy soils, “in situ” remediation through the unavailability of heavy metals from contaminated soils was investigated in order to develop cost-effective and eco-friendly approaches for soils contaminated with complexed heavy metals (HMs) and metalloids. In the present study, the effectiveness of different soil amendments, including sulfur-containing materials (hair or cysteine), manganese compounds as an antagonist and an oxidant, zeolite and iron oxide as adsorbents, and their combinations through coating or modification, was investigated by a pot experiment with rice plants and chemical analysis. Two levels of each treatment were made, termed X1 and X2, which were a single and double dose of each treatment respectively, while CaCO3 was used as a basal and pH enhancement amendment in all treatments to identify the best combination of the above treatments in the in situ remediation of heavy metals and metalloids. The rice plants were kept under the flooded condition. Results indicated that the bioavailability of As, Cd, Cr, and Pb in soil was significantly decreased with level two (X2) of iron oxide coated with modified hairs (T7X2) followed by level two (X2) of zeolite coated with KMnO4. The iron oxide coated with modified hairs (X2) decreased the concentrations of heavy metals and metalloids in rice plants in the order Pb ˃ As ˃ Cr ˃ Cd by 81%, 80%, 79% and 46%, respectively, followed by zeolite coated with KMnO4 (X2) in the order Pb ˃ As ˃ Cr ˃ Cd by 78%, 76%, 71%, and 31%, respectively, to control. The available content of these elements in soil was decreased in the order As > Cr> Pb > Cd by 67%, 66%, 64% and 60%, respectively, through iron oxide coated with modified hairs, followed by zeolite coated with KMnO4 in the order Pb ˃ Cr ˃ Cd ˃ As by 57%, 53%, 50%, and 46%, respectively, to control, which can explain the decreased bioavailability by these amendments. In addition, the maximum shoot dry and leaf area were noticed in the pots treated with iron oxide coated with modified hairs and zeolite coated with KMnO4. There is potential to use modified hairs (MHs) with iron oxide and KMnO4-coated zeolite as soil amendments to develop a cost-effective and efficient “in situ” remediation technology for As, Cd, Pb, and Cr-contaminated rice paddy soils, especially for the soils with complex contamination by Cd and As.

show abstract

“…[1,6,8,11,12]. In the past few decades, more and more nano size adsorbents and nanoparticles were exploited as highly efficient materials for arsenic adsorption [7,[12][13][14]. Nanoparticles have some benefits such as small size, catalytic potential, large surface area, high reactivity, easy separation, and large number of active sites that facilitate better arsenic removal efficiency compared to other available adsorbents [12].…”

Section: Introductionmentioning

confidence: 99%

“…Nanoparticles have some benefits such as small size, catalytic potential, large surface area, high reactivity, easy separation, and large number of active sites that facilitate better arsenic removal efficiency compared to other available adsorbents . The intra‐particle diffusion of macromolecules decreases the adsorption rate and available capacity of the adsorbent, while nanoparticles have small diffusion resistance which increased the significance of the application of nanoparticles as adsorbent .…”

Section: Introductionmentioning

confidence: 99%

Arsenic (III) removal from water by hydroxyapatite‐bentonite clay‐nanocrystalline cellulose

Hokkanen

Doshi

Srivastava

et al. 2019

Env Prog and Sustain Energy

View full text Add to dashboard Cite

In the present study, natural, non‐toxic nano size adsorption material: hydroxyapatite‐bentonite clay‐nanocrystalline cellulose (CHA‐BENT‐NCC) was successfully prepared for As(III) removal from water solution. The efficiency of this composite material was investigated as a function of solution pH, time, As(III) concentration, and temperature. The chemical and morphological structures of adsorbent were investigated by scanning electron microscopy (SEM), energy dispersive analysis of X‐rays (EDAX), transmission electron microscopy (TEM), X‐ray diffraction (XRD), and Fourier‐transform infrared spectroscopy (FTIR). Results of the kinetic study revealed that the adsorption rate was very high in the beginning and over 95% of As(III) removal was achieved within the first 5 min. The kinetics of As(III) on CHA‐BENT‐NCC complied with the pseudo‐first‐order model. The maximum uptake was 51.01 mg/g by Langmuir model and 48.99 mg/g by Dubinin–Radushkevich model. The preservation of As(III) specification was studied as function of time using three different storage method. © 2019 American Institute of Chemical Engineers Environ Prog, 38:e13146, 2019

show abstract

Synthesised magnetic nanoparticles coated zeolite (MNCZ) for the removal of arsenic (As) from aqueous solution

Cited by 64 publications

References 32 publications

Effective Amendments on Cadmium, Arsenic, Chromium and Lead Contaminated Paddy Soil for Rice Safety

Arsenic (III) removal from water by hydroxyapatite‐bentonite clay‐nanocrystalline cellulose

Contact Info

Product

Resources

About