Removal of arsenic from groundwater in West Bengal, India using CuO nanoparticle adsorbent

McDonald, Kyle J.; Reddy, K. J.; Singh, R. P.; Mukherjee, Saumitra

doi:10.1007/s12665-014-3645-3

Cited by 15 publications

(2 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many studies have shown that CuO NPs has a strong adsorption and oxidation ability for As(III/V) in a wide pH range and in the presence of competitive ions [ 26 , 27 ]. Moreover, As(III) is adsorbed on the surface of CuO NPs and was oxidized to As(V) [ 28 ].…”

Section: Discussionmentioning

confidence: 99%

Regulatory Mechanism of Copper Oxide Nanoparticles on Uptake of Different Species of Arsenic in Rice

Shi

Jiang

et al. 2021

Nanomaterials

View full text Add to dashboard Cite

Copper oxide nanoparticles (CuO NPs) are widely used as a fungicide in agriculture. The application of CuO NPs in agriculture affects the growth of rice and metal accumulation in rice. However, the mechanism of CuO NPs on arsenic (As) accumulation in rice remains unclear. In this study, a hydroponic culture was produced to investigate the mechanism of the effect of 50 and 100 mg L−1 CuO NPs on As accumulation in rice. Our results showed that CuO NPs decreased As(III/V) accumulation in the roots and shoots by adsorbing As(III/V), oxidizing of As(III) on the surface, and thickening the root cell wall. The addition of CuO NPs regulated the expression of the OsNIP1;1, OsHAC1;1, and OsHAC4 genes, which decreased As(III) transport and promoted As(V) reduction in the roots. Moreover, when CuO NPs were co-exposed to As, a negative correlation between the concentration of Cu and As in rice was also found in our study. However, CuO NPs significantly increased Cu accumulation in rice and constrained the rice growth. In conclusion, CuO NPs might be a promising way to decrease As accumulation in rice, but the negative effects such as growth inhibition should be further considered. Therefore, the application of CuO NPs in rice plants should take a more restrained approach.

show abstract

Section: Discussionmentioning

confidence: 99%

Regulatory Mechanism of Copper Oxide Nanoparticles on Uptake of Different Species of Arsenic in Rice

Shi

Jiang

et al. 2021

Nanomaterials

View full text Add to dashboard Cite

show abstract

“…Copper(II) oxide is a chemical compound with various and unique properties which, due to the development of nanotechnology, finds increasingly wider application [9,10]. These include, amongst others, use of CuO as promising nanostructured adsorbent for removal of undesirable and toxic contaminants such as As(III) and As(V), Pb(II), and Cr(VI) ions from water [11][12][13][14][15][16][17][18][19]. However, the use of CuO nanoparticles for water purification entails technical problems; particularly separation of the nanostructures from the treated water after the process is difficult.…”

Section: Introductionmentioning

confidence: 99%

CuO-Loaded Macroreticular Anion Exchange Hybrid Polymers Obtained via Tetrachlorocuprate(II) Ionic Form

Kociołek‐Balawejder

Stanisławska

Jacukowicz‐Sobala

et al. 2017

International Journal of Polymer Science

View full text Add to dashboard Cite

Amberlite IRA900 Cl, the macroreticular, polystyrene/divinylbenzene anion exchanger containing quaternary ammonium groups, was used as the support for copper(II) oxide deposition, and, as a result a new hybrid ion exchanger (HIX) was obtained. The CuO deposit was introduced into the anion exchanger structure in two steps conducted batchwise at ambient temperature. First, the functional groups were transformed from the Cl- into the CuCl42- form, using 5 mol dm−3 NaCl or HCl solution with CuCl2 being added, and then the intermediate product was contacted with NaOH/NaCl solution to precipitate CuO within the polymer beads. A HIX containing as much as 11.5% Cu was obtained. The distribution of the inorganic load within the porous matrix of polymer beads was atypical; CuO was mainly deposited in the outer parts of the beads and only a small amount was in their inner parts. This may be advantageous in some practical applications concerning the removal of harmful admixtures from waters in sorption processes.

show abstract

Applications of Nanoparticles in the Treatment of Wastewater

Ahmad¹,

Ahmad²,

Tabassum³

et al. 2017

Handbook of Ecomaterials

View full text Add to dashboard Cite

Removal of arsenic from groundwater in West Bengal, India using CuO nanoparticle adsorbent

Cited by 15 publications

References 28 publications

Regulatory Mechanism of Copper Oxide Nanoparticles on Uptake of Different Species of Arsenic in Rice

Regulatory Mechanism of Copper Oxide Nanoparticles on Uptake of Different Species of Arsenic in Rice

CuO-Loaded Macroreticular Anion Exchange Hybrid Polymers Obtained via Tetrachlorocuprate(II) Ionic Form

Applications of Nanoparticles in the Treatment of Wastewater

Contact Info

Product

Resources

About