A systematic study of arsenic adsorption and removal from aqueous environments using novel graphene oxide functionalized UiO-66-NDC nanocomposites

Singh, Simranjeet; Naik, T.S. Sunil Kumar; Basavaraju, U; Khan, Nadeem Ahmad; Wani, Abdul Basit; Behera, Sushant Kumar; Nath, Bidisha; Bhati, Shipra; Singh, Joginder; Ramamurthy, Praveen C.

doi:10.1038/s41598-022-18959-2

Cited by 29 publications

(5 citation statements)

References 42 publications

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“…The maximum adsorption capacity found in this study was 50.38 mg/g, compared to 29.07 mg/g that was obtained when using a commercially available granular ferric hydroxide adsorbent . Another study by Singh et al used a graphene oxide functionalized with a zirconium-based metal–organic framework nanocomposite for the removal of arsenic and, through isotherm modeling, obtained a maximum adsorption capacity of nearly 150 mg/g . Studies in the literature investigate the adsorption of arsenic using many types of adsorbents; some include modified saxaul ash, magnetite nanoparticles, functionalized diatom silica shells, and activated carbons. − …”

Section: Introductionmentioning

confidence: 49%

“…9 Another study by Singh et al used a graphene oxide functionalized with a zirconium-based metal−organic framework nanocomposite for the removal of arsenic and, through isotherm modeling, obtained a maximum adsorption capacity of nearly 150 mg/g. 10 Studies in the literature investigate the adsorption of arsenic using many types of adsorbents; some include modified saxaul ash, magnetite nanoparticles, functionalized diatom silica shells, and activated carbons. 11−14 In the literature, petroleum coke (PC) (or petcoke) has been proven to be an effective adsorbent for trace metals.…”

Section: Introductionmentioning

confidence: 99%

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Metal-Impregnated Petroleum Coke-Derived Activated Carbon for the Adsorption of Arsenic in Acidic Waters

Fisher,

Vreugdenhil

2023

ACS Omega

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The efficacy of metal-impregnated petroleum coke (PC) activated carbon for the adsorption of arsenite and arsenate in acidic waters is investigated in this study. Unmodified PC activated carbon, FeCl3-loaded activated carbon, KMnO4-loaded activated carbon, and a mixed FeCl3–KMnO4-loaded activated carbon were used for evaluation. The surface characteristics of the activated carbons before and after arsenic adsorption were analyzed by X-ray photoelectron spectroscopy (XPS). Arsenate adsorption was significantly improved by the addition of an iron–manganese-loaded activated carbon, increasing adsorption from 8.12 to 50.93%. Oxidation–reduction reactions are proposed based on the observed arsenic 2p3/2, iron 2p3/2, and manganese 2p3/2 XPS peaks. While iron in the iron-loaded activated carbon is not acting as the reducing agent, it is acting as a conductor for the flow of electrons from the activated carbon to the arsenic for reduction to take place prior to the physisorption of the arsenic. In the manganese-loaded activated carbon, manganese acts as the reducing agent for arsenic prior to arsenic adsorption to the surface through physisorption. XPS of the post-arsenic(V) exposure samples showed that the Fe2O3 species were reduced from 32.18 to 1.66% in the FeMn-loaded sample, while the FeOOH species were increased from 53.16 to 81.71%. Similarly, MnO in the FeMn-loaded activated carbon dropped from 26.82 to 15.40%, while MnOOH and MnO2 increased from 39.98 and 33.20 to 43.96 and 40.64%, respectively. This is consistent with the proposed mechanism. The adsorption of arsenite was also evaluated to show that the modification of the activated carbon adsorbed not only the arsenic(V) species but also the more toxic arsenic(III) species without the need for oxidation of the arsenic prior to adsorption.

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Section: Introductionmentioning

confidence: 49%

Section: Introductionmentioning

confidence: 99%

Metal-Impregnated Petroleum Coke-Derived Activated Carbon for the Adsorption of Arsenic in Acidic Waters

Fisher,

Vreugdenhil

2023

ACS Omega

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“…In this study, four-time intervals were used to record all changes that occurred along the growth of the paddy plant, on 25, 50, 75 and 100 days with the desired variety (MR 220CL2), ready to be harvested within 100 days. As mentioned in the early methodology under Section 2.4.4, various arsenic concentrations used in the pot experiment were selected as recommended by the European Community where the maximum acceptable limit is not more than 20 mg/kg [32,33]. During the experiment, both nanomaterials were tested at the same amount of 1 mg/kg and taken from the above result of the adsorption analysis, where both nanomaterials were applied to the fertilizer in order to study the effect of arsenic accumulation in rice grains.…”

Section: Growth Parameters For Rice Plant In Pot Experimentsmentioning

confidence: 99%

Controlling Arsenic Accumulation in Rice Grain under Nanomaterials-Assisted Optimal Greenhouse Set-Up

et al. 2023

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Rice is being increasingly exposed to inorganic arsenic and this affects half of the world population because they are rice consumers. In this study, pot experiments were carried out to investigate the effect of two dose-dependent nanomaterials (silica and graphene) treatment on varied arsenic levels (2, 7 and 12 mg/kg). The results showed that both nanomaterials were affected significantly with 1 mg/mL of nanomaterial. Arsenic adversely affected the plant height, tillering, number of grains, and grain weight and when high concentrations of arsenic were applied at 12 mg/kg, the plant could not withstand it and died before 75 days even in the presence of graphene. Based on inductively coupled plasma mass spectrometry analysis, silica nanoparticles showed the highest inhibition on the total accumulation of arsenic as 93% (control plant), 84% (2 mg/kg), 67% (7 mg/kg) to 35 % (12 mg/kg), whereas graphene showed lower inhibition percentages. This outcome confirms that silica nanoparticles prevent arsenic uptake, because they translocate from the root to the grains and are able to offer a promising way to reduce consumer health risk.

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“…Thus, there is an emergent need to reduce or remove high levels of arsenic from the potential exposure sources to prevent or reduce the harmful impact of As exposure. Various physicochemical and biological techniques, like oxidation, coagulation, ion exchange, membrane techniques, and adsorption, are available to reduce or remove As contamination 7 – 9 .…”

Section: Introductionmentioning

confidence: 99%

Biosorption of arsenic (III) from aqueous solution using calcium alginate immobilized dead biomass of Acinetobacter sp. strain Sp2b

Khandelwal,

Keelka,

Jain

et al. 2024

Sci Rep

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This study presents a novel biosorbent developed by immobilizing dead Sp2b bacterial biomass into calcium alginate (CASp2b) to efficiently remove arsenic (AsIII) from contaminated water. The bacterium Sp2b was isolated from arsenic-contaminated industrial soil of Punjab, a state in India. The strain was designated Acinetobacter sp. strain Sp2b as per the 16S rDNA sequencing, GenBank accession number -OP010048.The CASp2b was used for the biosorption studies after an initial screening for the biosorption capacity of Sp2b biomass with immobilized biomass in both live and dead states. The optimum biosorption conditions were examined in batch experimentations with contact time, pH, biomass, temperature, and AsIII concentration variables. The maximum biosorption capacity (qmax = 20.1 ± 0.76 mg/g of CA Sp2b) was obtained at pH9, 35 ̊ C, 20 min contact time, and 120 rpm agitation speed. The isotherm, kinetic and thermodynamic modeling of the experimental data favored Freundlich isotherm (R2 = 0.941) and pseudo-2nd-order kinetics (R2 = 0.968) with endothermic nature (ΔH° = 27.42) and high randomness (ΔS° = 58.1).The scanning electron microscopy with energy dispersive X-ray (SEM–EDX) analysis indicated the As surface binding. The reusability study revealed the reasonable usage of beads up to 5 cycles. In conclusion, CASp2b is a promising, efficient, eco-friendly biosorbent for AsIII removal from contaminated water.

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A systematic study of arsenic adsorption and removal from aqueous environments using novel graphene oxide functionalized UiO-66-NDC nanocomposites

Cited by 29 publications

References 42 publications

Metal-Impregnated Petroleum Coke-Derived Activated Carbon for the Adsorption of Arsenic in Acidic Waters

Metal-Impregnated Petroleum Coke-Derived Activated Carbon for the Adsorption of Arsenic in Acidic Waters

Controlling Arsenic Accumulation in Rice Grain under Nanomaterials-Assisted Optimal Greenhouse Set-Up

Biosorption of arsenic (III) from aqueous solution using calcium alginate immobilized dead biomass of Acinetobacter sp. strain Sp2b

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