Removal of cyanide using surface-modified Linde Type-A zeolite nanoparticles as an efficient and eco-friendly material

Noroozi, Roghayeh; Al-Musawi, Tariq J.; Kazemian, Hossein; Kalhori, Ebrahim Mohammadi; Zarrabi, Mansur

doi:10.1016/j.jwpe.2017.11.011

Cited by 64 publications

(56 citation statements)

References 34 publications

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“…5 indicate that the more amount of doses of the adsorbent interacted the more the amount of the adsorbed MB dye. The adsorbent mass is one of the decisive factors in the adsorption process [37] because the increased concentration of adsorbent used will increase the number of active sites of adsorbent in absorbing the adsorbate. The percentage of the adsorbed MB dyestuff on AS-MPs is greater than that on the AS; this occurs because on AS-MPs, there are MPs that cause the adsorbent to be magnetic, thus increasing the number of active sites of adsorbent [33].…”

Section: Effect Of Adsorbent Dosementioning

confidence: 99%

Magnetized algae-silica hybrid from Porphyridium sp. biomass with Fe3O4 particle and its application as adsorbent for the removal of methylene blue from aqueous solution

Buhani¹,

Hariyanti²,

Suharso³

et al. 2019

Desalination and Water Treatment

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Algae-silica (AS) hybrid material from biomass Porphyridium sp. has been modified by coating Fe 3 O 4 particles (MPs) via a sol-gel process using tetraethyl orthosilicate to produce algae-silica-Fe 3 O 4 (AS-MPs). The AS-MPs produced were applied as adsorbent for the adsorption of methylene blue (MB). Identification of functional groups was performed by infrared spectrometer indicating that in AS-MPs there were active organic groups derived from Porphyridium sp., silanol and siloxane. Diffraction pattern of the AS-MP material analyzed by X-ray diffraction showed that the material showed that the average particle size distribution of the AS-MP material was 1.40 µm. In addition to the results of the analysis using scanning electron microscopy, material of AS-MPs has a more heterogeneous surface morphology. The models of MB adsorption by AS and AS-MP tend to follow the pseudo-second-order kinetic model and Freundlich adsorption isotherm. The adsorption of MB solution by AS-MP produces rate constants (k 2 ) of 0.003 g mg -1 min and adsorption capacity (q m ) of 96.927 mg g -1 under the experimental conditions of dose of adsorbent of 2.5 mg L -1 , interaction pH of this study can be used as an effective adsorbent because it can remove MB dyestuff in solution, it is chemically stable in acidic and neutral media, and it can be used repeatedly.

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Section: Effect Of Adsorbent Dosementioning

confidence: 99%

Magnetized algae-silica hybrid from Porphyridium sp. biomass with Fe3O4 particle and its application as adsorbent for the removal of methylene blue from aqueous solution

Buhani¹,

Hariyanti²,

Suharso³

et al. 2019

Desalination and Water Treatment

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“…Zeolites are three-dimensional, crystalline microporous materials, having well-defined structures of voids and conduits of distinct size, which is easily accessible through pores of well-defined molecular dimensions that hold aluminum, silicon and oxygen in their normal framework [ 92 , 93 , 94 ]. Zeolites are found naturally as silicate minerals and can also be prepared synthetically as magnetically modified zeolite, and bio-zeolite, etc.…”

Section: Nanotechnology In Wastewater Managementmentioning

confidence: 99%

“…Esmaili and Saremnia developed NaA zeolite NPs (NaA-z@NPs) from the husk of Hordeum vulgare L. for adsorption of total petroleum hydrocarbon (TPH). TPH removal efficiency of NaA-z@NPs at optimal conditions in both batch and continuous systems was observed to be 92.3% and 87.4%, respectively [ 94 ].…”

Section: Nanotechnology In Wastewater Managementmentioning

confidence: 99%

Nanotechnology in Wastewater Management: A New Paradigm Towards Wastewater Treatment

et al. 2021

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Clean and safe water is a fundamental human need for multi-faceted development of society and a thriving economy. Brisk rises in populations, expanding industrialization, urbanization and extensive agriculture practices have resulted in the generation of wastewater which have not only made the water dirty or polluted, but also deadly. Millions of people die every year due to diseases communicated through consumption of water contaminated by deleterious pathogens. Although various methods for wastewater treatment have been explored in the last few decades but their use is restrained by many limitations including use of chemicals, formation of disinfection by-products (DBPs), time consumption and expensiveness. Nanotechnology, manipulation of matter at a molecular or an atomic level to craft new structures, devices and systems having superior electronic, optical, magnetic, conductive and mechanical properties, is emerging as a promising technology, which has demonstrated remarkable feats in various fields including wastewater treatment. Nanomaterials encompass a high surface to volume ratio, a high sensitivity and reactivity, a high adsorption capacity, and ease of functionalization which makes them suitable for application in wastewater treatment. In this article we have reviewed the techniques being developed for wastewater treatment using nanotechnology based on adsorption and biosorption, nanofiltration, photocatalysis, disinfection and sensing technology. Furthermore, this review also highlights the fate of the nanomaterials in wastewater treatment as well as risks associated with their use.

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“…1,2 The maximum permissible cyanide concentration in wastewater effluent is recommended to be below 0.2 mg L À1 prior to discharge into natural water bodies. 3 Hence, to comply with strict environmental legislations, industries are required to provide adequate treatment methods for removing cyanide from wastewater.…”

Section: Introductionmentioning

confidence: 99%

“…10 Hydroxyl and sulfate radicals (HOc and SO 4 c À ) have almost similar redox potential (HOc: E 0 ¼ 2.74 V and SO 4 c À : E 0 ¼ 2.5-3.1 V) leading fragmentation of pollutants and mineralization to CO 2 and H 2 O. However, in comparison to HOc, SO 4 c À has some advantages including broad operational pH range (2)(3)(4)(5)(6)(7)(8) and longer half-life (30-40 ms) which provides better contact chance with contaminants. SO 4 c À can be generated through the activation of PS via various methods including heat, catalyst, electrochemical, UV, etc.…”

Section: Introductionmentioning

confidence: 99%

A catalytic ozonation process using MgO/persulfate for degradation of cyanide in industrial wastewater: mechanistic interpretation, kinetics and by-products

Behnami

Croué

Aghayani³

et al. 2021

RSC Adv.

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Removal of cyanide using surface-modified Linde Type-A zeolite nanoparticles as an efficient and eco-friendly material

Cited by 64 publications

References 34 publications

Magnetized algae-silica hybrid from Porphyridium sp. biomass with Fe3O4 particle and its application as adsorbent for the removal of methylene blue from aqueous solution

Magnetized algae-silica hybrid from Porphyridium sp. biomass with Fe3O4 particle and its application as adsorbent for the removal of methylene blue from aqueous solution

Nanotechnology in Wastewater Management: A New Paradigm Towards Wastewater Treatment

A catalytic ozonation process using MgO/persulfate for degradation of cyanide in industrial wastewater: mechanistic interpretation, kinetics and by-products

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