Removal of arsenate by cetyltrimethylammonium bromide modified magnetic nanoparticles

Jin, Yongxing; Liu, Fei; Tong, Meiping; Hou, Yanglong

doi:10.1016/j.jhazmat.2012.05.004

Cited by 124 publications

(52 citation statements)

References 49 publications

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“…Arsenic adsorption increases with decreasing MNP particle size [280] and phosphate competes against As for adsorption [281]. CTAB modified MNPs adsorb more As(V) than MNPs alone [282]. Fe3O4-graphene-LDH removes almost twice as much As(V) as LDH alone [283].…”

Section: Arsenic Phosphate Molybdate Fluoride Seleniummentioning

confidence: 99%

Environmental implications and applications of engineered nanoscale magnetite and its hybrid nanocomposites: A review of recent literature

2017

Journal of Hazardous Materials

303

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Section: Arsenic Phosphate Molybdate Fluoride Seleniummentioning

confidence: 99%

Environmental implications and applications of engineered nanoscale magnetite and its hybrid nanocomposites: A review of recent literature

2017

Journal of Hazardous Materials

303

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“…This application of Fe 3 O 4 nanoparticles for heavy metal removal has a great potential in wastewater engineering. Jin et al (2012) reported that modification of cetyltrimethylammonium bromide (CTAB) greatly enhanced As(V) adsorption capacity from 7.59 to 23.07 mg g −1 which is over 95 % removal of As(V) (100 μg L −1 ) using 0.1 g L −1 Fe 3 O 4 @CTAB within 2 min at pH 6 and more than 90 % at a wide pH range from 3 to 9. Arsenate adsorption agreed well with pseudo-second order kinetic model and two-site Langmuir isotherm model with the arsenate adsorption capacity of 23.07 mg g −1 , which was twice greater than the results obtained using pure Fe 3 O 4 .…”

Section: Iron Oxide Nanoparticlesmentioning

confidence: 99%

Arsenic removal by nanoparticles: a review

Habuda-Stanić

Nujić

2015

Environ Sci Pollut Res

156

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Contamination of natural waters with arsenic, which is both toxic and carcinogenic, is widespread. Among various technologies that have been employed for arsenic removal from water, such as coagulation, filtration, membrane separation, ion exchange, etc., adsorption offers many advantages including simple and stable operation, easy handling of waste, absence of added reagents, compact facilities, and generally lower operation cost, but the need for technological innovation for water purification is gaining attention worldwide. Nanotechnology is considered to play a crucial role in providing clean and affordable water to meet human demands. This review presents an overview of nanoparticles and nanobased adsorbents and its efficiencies in arsenic removal from water. The paper highlights the application of nanomaterials and their properties, mechanisms, and advantages over conventional adsorbents for arsenic removal from contaminated water.

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“…SPION functionalization provides a more active adsorption sites accessible to both arsenite and arsenate. The most important reason for the observed increase of is the decrease of SPION aggregation by a dispersion that leads to a higher availability of adsorption positions [10,[44][45][46][47][48][49][50][51].…”

Section: Adsorption Capacity Comparison With Similar Adsorbent Systemsmentioning

confidence: 99%

Arsenate removal with 3-mercaptopropanoic acid-coated superparamagnetic iron oxide nanoparticles

Morillo

Uheida

Pérez

et al. 2015

Journal of Colloid and Interface Science

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In the present work, superparamagnetic iron oxide nanoparticles (SPION) surface-coated with 3-mercaptopropanoic acid (3-MPA) were prepared and their feasibility for the removal of arsenate from dilute aqueous solutions was demonstrated. The synthesized 3-MPA-coated SPION was characterized using transmission electron microscopy (TEM), thermogravimetric analysis (TGA) and Fourier transform infra-red spectrometry (FTIR). Separation efficiency of the coated nanoparticles and the equilibrium isotherm of arsenate adsorption were investigated. The obtained results reveal the arsenate adsorption to be highly pH-dependent, and the maximum adsorption was attained in less than 60 minutes. The resulting increase of 3-MPA-coated SPION adsorption capacity to twice the adsorption capacity of SPION alone under the same conditions is attributed to the increase of active adsorption sites. An adsorption reaction is proposed. On the other hand, efficient recovery of arsenate from the loaded nanoparticles was achieved using nitric acid (HNO 3 ) solution, which also provides a concentration over the original arsenate solution. HIGHLIGHTS• Feasibility of using SPION modified with 3MPA for the removal of As(V).• The adsorbent system results in an effective sorption for selective As(V) removal.• The adsorption capacity for As(V) is higher comparing with other adsorbent systems.• Adsorption mechanism has been proposed as the most suitable considering the results.

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Removal of arsenate by cetyltrimethylammonium bromide modified magnetic nanoparticles

Cited by 124 publications

References 49 publications

Environmental implications and applications of engineered nanoscale magnetite and its hybrid nanocomposites: A review of recent literature

Environmental implications and applications of engineered nanoscale magnetite and its hybrid nanocomposites: A review of recent literature

Arsenic removal by nanoparticles: a review

Arsenate removal with 3-mercaptopropanoic acid-coated superparamagnetic iron oxide nanoparticles

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