Chitosan immobilization and Fe3O4 functionalization of olive pomace: An eco–friendly and recyclable Pb2+ biosorbent

Sayin, Fatih; Akar, Sibel Tunali; Akar, Tamer; Çelik, Sema; Gedikbey, Tevfik

doi:10.1016/j.carbpol.2021.118266

Cited by 19 publications

(3 citation statements)

References 79 publications

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“…It is economically advantageous because it solves disposal issues and brings in money for several sectors. The abundant biological materials have structural differences that are notable (Sayin et al 2021). Various ligands, including alcohol, aldehydes, carboxylic, hydroxyl, phosphate, thiol, ketones, phenolic, and ether compounds, make up their structure.…”

Section: Selection Of Biosorbentsmentioning

confidence: 99%

Methods to prepare biosorbents and magnetic sorbents for water treatment: a review

et al. 2023

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Access to drinkable water is becoming more and more challenging due to worldwide pollution and the cost of water treatments. Water and wastewater treatment by adsorption on solid materials is usually cheap and effective in removing contaminants, yet classical adsorbents are not sustainable because they are derived from fossil fuels, and they can induce secondary pollution. Therefore, biological sorbents made of modern biomass are increasingly studied as promising alternatives. Indeed, such biosorbents utilize biological waste that would otherwise pollute water systems, and they promote the circular economy. Here we review biosorbents, magnetic sorbents, and other cost-effective sorbents with emphasis on preparation methods, adsorbents types, adsorption mechanisms, and regeneration of spent adsorbents. Biosorbents are prepared from a wide range of materials, including wood, bacteria, algae, herbaceous materials, agricultural waste, and animal waste. Commonly removed contaminants comprise dyes, heavy metals, radionuclides, pharmaceuticals, and personal care products. Preparation methods include coprecipitation, thermal decomposition, microwave irradiation, chemical reduction, micro-emulsion, and arc discharge. Adsorbents can be classified into activated carbon, biochar, lignocellulosic waste, clays, zeolites, peat, and humic soils. We detail adsorption isotherms and kinetics. Regeneration methods comprise thermal and chemical regeneration and supercritical fluid desorption. We also discuss exhausted adsorbent management and disposal. We found that agro-waste biosorbents can remove up to 68–100% of dyes, while wooden, herbaceous, bacterial, and marine-based biosorbents can remove up to 55–99% of heavy metals. Animal waste-based biosorbents can remove 1–99% of heavy metals. The average removal efficiency of modified biosorbents is around 90–95%, but some treatments, such as cross-linked beads, may negatively affect their efficiency.

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Section: Selection Of Biosorbentsmentioning

confidence: 99%

Methods to prepare biosorbents and magnetic sorbents for water treatment: a review

et al. 2023

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“…Biopolymers like chloro-deoxycellulose (CDC), alginate, cellulose, and chitosan can facilitate catalysis and offer numerous advantages, including low toxicity, cost-effectiveness, as well as high biocompatibility and biodegradability [ 21 ]. Recently, several researchers have addressed the advanced oxidation of bio-nanocomposite magnetic cellulosic fibres in aqueous solution using heterogeneous Fenton-like oxidation processes [ 22 , 23 ]. In another recent report, Wang et al developed a new mussel-inspired magnetic carboxylated cellulose nanofiber (MCNF/PDA) for efficient Fenton-like methylene blue degradation [ 24 ].…”

Section: Introductionmentioning

confidence: 99%

A Novel Recyclable Magnetic Nano-Catalyst for Fenton-Photodegradation of Methyl Orange and Imidazole Derivatives Catalytic Synthesis

Albalawi,

Hajri,

Jamoussi

et al. 2024

Polymers

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A magnetite chlorodeoxycellulose/ferroferric oxide (CDC@Fe3O4) heterogeneous photocatalyst was synthesised via treated and modified cotton in two steps. The designed nanocomposites were characterised by FTIR, TGA, XRD, SEM, and VSM analyses. The Fenton-photocatalytic decomposition efficiency of the synthesised magnetic catalyst was evaluated under visible sunlight using Methyl Orange (MO) as a model organic pollutant. The impacts of several degradation parameters, including the light source, catalyst load, irradiation temperature, oxidant dose, and pH of the dye aqueous solution and its corresponding concentration on the Fenton photodegradation performance, were methodically investigated. The (CDC@Fe3O4) heterogeneous catalyst showed a remarkable MO removal rate of 97.9% at 10 min under visible-light irradiation. (CDC@Fe3O4) nanomaterials were also used in a heterogeneous catalytic optimised protocol for a multicomponent reaction procedure to obtain nine tetra-substituted imidazole derivatives. The green protocol afforded imidazole derivatives in 30 min with good yields (91–97%) at room temperature and under ultrasound irradiation. Generally, a synthesised recyclable heterogeneous nano-catalyst is a good example and is suitable for wastewater treatment and organic synthesis.

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“…Furthermore, to our knowledge, no study has evaluated the removal capacity of untreated OFI cladodes in contact with mixtures of Ni, Cu, Pb, and Cd to assess the possible competition between individual metals. For this experimental investigation, we focused on four heavy metals (Cu, Cd, Pb, and Ni) as they are generally considered among the most widespread toxic mineral contaminants of soil and water systems [1,7,[38][39][40]. Numerous scientific studies have reported that Ni, Cd, and Cu levels in drinking water exceed the permissible limits recommended by the WHO (2017) [41] and the USEPA (2009) [42].…”

Section: Introductionmentioning

confidence: 99%

Untreated Opuntia ficus indica for the Efficient Adsorption of Ni(II), Pb(II), Cu(II) and Cd(II) Ions from Water

et al. 2023

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The raw cladode of Opuntia ficus indica (OFI) was evaluated as a sustainable biosorbent for the removal of heavy metals (Ni, Pb, Cu, and Cd) from aqueous solutions. The functional groups of OFI were identified by employing DRIFT-FTIR and CP-MAS-NMR techniques before and after contact with the ions in an aqueous media, showing a rearrangement of the biomass structure due to the complexation between the metal and the functional groups. The adsorption process was studied in both single- and multi-component systems under batch conditions at different pHs (4.0, 5.0, and 6.0), different metal concentrations, and different biomass amounts. The results show that the raw OFI had a removal capacity at room temperature of over 80% for all metals studied after only 30 min of contact time, indicating a rapid adsorption process. Biosorption kinetics were successfully fitted by the pseudo-second-order equation, while Freundlich correctly modelled the biosorption data at equilibrium. The results of this work highlight the potential use of the untreated cladode of OFI as an economical and environmentally friendly biosorbent for the removal of heavy metals from the contaminated aqueous solution.

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Chitosan immobilization and Fe3O4 functionalization of olive pomace: An eco–friendly and recyclable Pb2+ biosorbent

Cited by 19 publications

References 79 publications

Methods to prepare biosorbents and magnetic sorbents for water treatment: a review

Methods to prepare biosorbents and magnetic sorbents for water treatment: a review

A Novel Recyclable Magnetic Nano-Catalyst for Fenton-Photodegradation of Methyl Orange and Imidazole Derivatives Catalytic Synthesis

Untreated Opuntia ficus indica for the Efficient Adsorption of Ni(II), Pb(II), Cu(II) and Cd(II) Ions from Water

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