Modelling the hydrophilic extraction of the bark of Eucalyptus nitens and Eucalyptus globulus: Adsorption isotherm and thermodynamic studies

Parada, María Soledad; Fernández, Katherina

doi:10.1016/j.indcrop.2017.08.059

Cited by 14 publications

(4 citation statements)

References 43 publications

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“…There is increasing pressure on these applications to be limited, as they represent a consumption of very slowly replaceable natural resources. Such materials that have been used as precursors include peat ( [20,21,90]); lignite ( [80]); various wood types, for example, Eucalyptus tree [22,91], spruce wood [23,92], sawdust [93], compressed wood [46], fir wood [94], oil palm wood [95], olive tree wood [96], tamarind wood [97], bamboo [98][99][100], Jatropha curcas [24] and wood biochar [101]; and sugarcane bagasse ( [27,28,102]; McKay 1998; [68,103]).…”

Section: Naturally Occurring Resourcesmentioning

confidence: 99%

Production and applications of activated carbons as adsorbents from olive stones

Saleem

Shahid

Hijab

et al. 2019

Biomass Conv. Bioref.

364

164

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Olive stones have been widely used as a renewable energy biowaste source. As they are rich in elemental carbon (40-45 wt%), much research focussed on effectively converting olive stones, as precursors, into activated carbon adsorbents. However, only a few studies have concentrated on summarising the various techniques used to produce activated carbon from olive stone. This article reviews the research undertaken on the production and application of activated carbon as an adsorbent from olive stones for wastewater treatment. Various physical, chemical and physico-chemical treatments to remove heavy metals, organics and dyes are discussed, and the resultant adsorption capacities are reported. In several cases, very high adsorption capacities are recorded. Finally, the future prospects of these materials as adsorbents are discussed, and after further development work, olive stone-derived activated carbons have great potential especially in the area of organic polluted wastewaters.

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Section: Naturally Occurring Resourcesmentioning

confidence: 99%

Production and applications of activated carbons as adsorbents from olive stones

Saleem

Shahid

Hijab

et al. 2019

Biomass Conv. Bioref.

364

164

View full text Add to dashboard Cite

show abstract

“…TA are water-soluble phenolic compounds found in various plant species known for their antioxidant and microbial activity [ 29 , 30 , 31 ], and have the ability to form complexes with polysaccharides and proteins. Additionally, non-covalent interactions may occur between the aromatic rings of tannins and aromatic species [ 32 ], such as π-π interactions, enabling phenolic groups of TA to bind to the rGO surface [ 33 ].…”

Section: Introductionmentioning

confidence: 99%

Enhancing Alginate Hydrogels as Possible Wound-Healing Patches: The Synergistic Impact of Reduced Graphene Oxide and Tannins on Mechanical and Adhesive Properties

Carrasco,

González,

Tapia

et al. 2024

Polymers

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Hydrogels are three-dimensional crosslinked materials known for their ability to absorb water, exhibit high flexibility, their biodegradability and biocompatibility, and their ability to mimic properties of different tissues in the body. However, their application is limited by inherent deficiencies in their mechanical properties. To address this issue, reduced graphene oxide (rGO) and tannins (TA) were incorporated into alginate hydrogels (Alg) to evaluate the impact of the concentration of these nanomaterials on mechanical and adhesive, as well as cytotoxicity and wound-healing properties. Tensile mechanical tests demonstrated improvements in tensile strength, elastic modulus, and toughness upon the incorporation of rGO and TA. Additionally, the inclusion of these materials allowed for a greater energy dissipation during continuous charge–discharge cycles. However, the samples did not exhibit self-recovery under environmental conditions. Adhesion was evaluated on pig skin, revealing that higher concentrations of rGO led to enhanced adhesion, while the concentration of TA did not significantly affect this property. Moreover, adhesion remained consistent after 10 adhesion cycles, and the contact time before the separation between the material and the surface did not affect this property. The materials were not cytotoxic and promoted healing in human fibroblast-model cells. Thus, an Alg/rGO/TA hydrogel with enhanced mechanical, adhesive, and wound-healing properties was successfully developed.

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“…TA are water-soluble phenolic compounds found in various plant species known for their antioxidant and microbial activity [29][30][31], have the ability to form complexes with polysaccharides and proteins. Additionally, non-covalent interactions may occur between the aromatic rings of tannins and aromatic species [32], such as π-π interactions enabling phenolic groups of TA to bind to the rGO surface [33].…”

Section: Introductionmentioning

confidence: 99%

Enhancing Alginate Hydrogels as Possible Wound Healing Patches: The Synergistic Impact of Reduced Graphene Oxide and Tannins on Mechanical and Adhesive Properties

Carrasco,

González,

Tapia

et al. 2024

Preprint

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Hydrogels are three-dimensional crosslinked materials known for their ability to absorb water, exhibit high flexibility, biodegradability, biocompatibility, and mimic properties of different tissues in the body. However, their application is limited by inherent deficiencies in mechanical properties. To address this issue, reduced graphene oxide (rGO) and tannins (TA) were incorporated into alginate hydrogels (Alg) to evaluate the impact of the concentration of these nanomaterials on mechanical and adhesive, as well as cytotoxicity and wound healing properties. Tensile mechanical tests demonstrated improvements in tensile strength, elastic modulus, and toughness upon the incorporation of rGO and TA. Additionally, the inclusion of these materials allowed a greater energy dissipation during continuous charge-discharge cycles. However, the samples did not exhibit self-recovery under environmental conditions. Adhesion was evaluated on pig skin, revealing that higher concentrations of rGO led to enhanced adhesion, while the concentration of TA did not significantly affect this property. Moreover, adhesion remained consistent after 10 adhesion cycles, and contact time before the separation between the material and the surface did not affect this property. The materials were not cytotoxic and promoted healing in human fibroblast model cells. Thus, an Alg/rGO/TA hydrogel with enhanced mechanical, adhesive, and wound healing properties was successfully developed.

show abstract

Modelling the hydrophilic extraction of the bark of Eucalyptus nitens and Eucalyptus globulus: Adsorption isotherm and thermodynamic studies

Cited by 14 publications

References 43 publications

Production and applications of activated carbons as adsorbents from olive stones

Production and applications of activated carbons as adsorbents from olive stones

Enhancing Alginate Hydrogels as Possible Wound-Healing Patches: The Synergistic Impact of Reduced Graphene Oxide and Tannins on Mechanical and Adhesive Properties

Enhancing Alginate Hydrogels as Possible Wound Healing Patches: The Synergistic Impact of Reduced Graphene Oxide and Tannins on Mechanical and Adhesive Properties

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