As(V) removal using carbonized yeast cells containing silver nanoparticles

Selvakumar, R.; Jothi, N. Arul; Jayavignesh, V.; Karthikaiselvi, K.; Antony, Geny Immanual; Sharmila, P.; Subbiah, Kavitha; Swaminathan, K.

doi:10.1016/j.watres.2010.09.034

Cited by 58 publications

(24 citation statements)

References 39 publications

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“…As(V) desorption rates decreased from 80% to 55.6% throughout five regeneration-reuse cycles. The desorption rate of 55.6% in the fifth regeneration cycles was greater than the maximum As(V) desorption rate of 49.2% of carbonized silver containing yeast cells [6] and the As(V) recuperation rate (∼15%) of iron oxide ceramic membranes in the fifth adsorption-regeneration cycle [53]. The slowly decreased As(V) adsorption rate might be due to the irreversible adsorption of As(V) on the core Fe 3 O 4 [10,11].…”

Section: Regeneration and Reuse Of Fe 3 O 4 @Ctabmentioning

confidence: 89%

“…Many new adsorbents such as carbonized yeast cell containing silver nanoparticles [6], nanoscale zero-valent iron [7], and Al:Fe hydroxides [8] have been applied to remove arsenic. However, the applications of most of these new adsorbents especially the nanoscale adsorbents have been inhibited by the difficulty in recovering adsorbents after adsorption applications due to their relatively small sizes [9].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Removal of arsenate by cetyltrimethylammonium bromide modified magnetic nanoparticles

Jin

Liu

Tong

et al. 2012

Journal of Hazardous Materials

124

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Section: Regeneration and Reuse Of Fe 3 O 4 @Ctabmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Removal of arsenate by cetyltrimethylammonium bromide modified magnetic nanoparticles

Jin

Liu

Tong

et al. 2012

Journal of Hazardous Materials

124

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“…In addition, ZrO 2 spheres are nontoxic, highly stable, and resistant to acid and alkali; have a high arsenic adsorption capacity; and could be easily adapted for various arsenic removal apparatus. Selvakumar et al (2011) developed adsorbent nanoparticles for arsenate removal using silver reducing property of the novel yeast strain Saccharomyces cerevisiae BU-MBT-CY1 isolated from coconut cell sap. The yeast cells after biological silver reduction were harvested and subjected to carbonization at 400°C for 1 h. Increased As(V) adsorption capacity of 0.975 mg g −1 was achieved using carbonized silver containing yeast cells (CSY) compared to 0.236 mg g −1 using carbonized control yeast cells (CCY).…”

Section: Calcium Peroxide 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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“…They can provide nucleation centers and immobilize particles on the surface to form mesoporous structures. [92] The nucleation and growth of inorganic materials are mostly controlled by the genes and metabolism of organisms in biomineralization processes. [93] Both the biomineralization mechanism and the potential application of microorganism magnetosomes in bio-nanotechnology have been studied through molecular and genetic methods.…”

Section: Microorganism Based Bio-templatesmentioning

confidence: 99%

Bio‐Nanotechnology in High‐Performance Supercapacitors

Zhang

Wang

et al. 2017

Advanced Energy Materials

180

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on seeking suitable electrode materials, and optimizing the electrode/electrolyte and electrode/current collector interface properties. As the core of such energystorage devices, the electrode materials directly determine the processing cost and performance of devices, such as their rate capability, specific capacitance (C sp ), cycling stability, etc, which enable the safe and highly-efficient use of energy. [1a,3] Based on the mechanisms of charge storage, SC electrodes can be classified as electric double layer electrodes (EDLEs), pseudocapacitive electrodes, and hybrid electrodes. Most of the EDLEs use carbon materials (activated carbon (AC), [4] carbon nanotubes (CNTs), [5] carbon nanofibers (CNFs), [6] graphene (GN), [7] etc.) as the electrode active materials and store energy only by electrostatic accumulation at the electrode/electrolyte interface. EDLEs usually show high charge-discharge rates and high cycling stability, while their energy densities (≈5 W h kg −1 ) are often greatly limited by the Brunauer-Emmett-Teller (BET) specific surface area (S BET ) and the pore size distribution of electrode materials. Pseudocapacitive electrodes are generally based on conductive polymers (polypyrrole (PPy), polyaniline (PANI), polythiophene, etc.) [8] and transition metal oxides/ hydroxides (Fe 3 O 4 , MnO 2 , RuO 2 , NiO, Co 3 O 4 , Ni(OH) 2 , etc.), [9] and use reversible faradic processes for energy storage. Compared to EDLEs, pseudocapacitive electrodes can offer much higher storage capabilities because of the faradic reactions involved. In the case of transition metal oxides/hydroxides, however, their poor electrical conductivity generally leads to low power density. In addition, the easily damaged structures of conductive polymers during the faradic processes usually lead to poor cycling stability. To resolve these problems, hybrid electrodes (GN/PPy, CNTs/PPy, GN/MnO 2 , PPy/MnO 2 , NiMoO 4 / PANI, CNTs/MoS 2 , PPy/MoS 2 , etc.) [10] have been developed to take complete advantage of both EDLEs and pseudocapacitive electrodes. For a long time, nanotechnological techniques have been considered as promising approaches to prepare highly efficient SC electrodes. [1b,11] Compared with micro-and submillimeter materials, nanomaterials as active SC electrodes have the following advantages: [12] (1) A high S BET means sufficient electroactive sites and thus high capacity utilization of electrode materials; (2) Intrinsic porous structures and small particle sizes, which contribute to the complete penetration of the electrolyte and reduce the diffusion path of electrolyte ions; (3) Highly ordered hierarchical structures can relieve the stress within the materials and offer stable channels for electron transfer, which can ensure good cycling stability; (4) The The use of bio-nanotechnology for the fabrication of diverse functional nanomaterials with precisely controlled morphologies and microstructures is attracting considerable attention due to its sustainability and renewability. As one of the key energy storag...

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As(V) removal using carbonized yeast cells containing silver nanoparticles

Cited by 58 publications

References 39 publications

Removal of arsenate by cetyltrimethylammonium bromide modified magnetic nanoparticles

Removal of arsenate by cetyltrimethylammonium bromide modified magnetic nanoparticles

Arsenic removal by nanoparticles: a review

Bio‐Nanotechnology in High‐Performance Supercapacitors

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