Preparation of an alternative adsorbent from Acacia Mearnsii wastes through acetosolv method and its application for dye removal

Silva, Jéssica Silveira da; Rosa, Marcelo Pereira da; Beck, Paulo; Peres, Enrique Chaves; Dotto, Guilherme L.; Kessler, Felipe; Grasel, Fábio S.

doi:10.1016/j.jclepro.2018.01.201

Cited by 47 publications

(13 citation statements)

References 31 publications

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“…6. This figure shows that the removal percent increases from 34.70 to 95.06% for MB and from 29.32 to 95.13% for CV when the adsorbent dose increases from 0.01 to 0.05 g; this increase in %R can be explained by improving adsorbent surface area and rising in the available active sites for the adsorption (Da Silva et al 2018).…”

Section: Effect Of Adsorbent Dosagementioning

confidence: 87%

“…1477 cm −1 is due to bending vibration of CH 2 (Da Silva et al 2018), and 1101 cm −1 is related to stretching C-O bonds. FTIR spectrum of m-Biochar shows the characteristic peaks obtained in p-Biochar with slightly shifted and more intense peaks.…”

Section: Ftirmentioning

confidence: 99%

“…Nowadays, there is a great attention to prepare the low-cost activated carbon from alternative sources. Many researchers have prepared activated carbon from various waste agriculture products such as orange peel (Khaled et al 2009), coconut tree (Senthilkumaar et al 2006), coffee husk (Ahma and Rahman 2011), coconut husk (Foo and Hameed 2012;Aljeboree et al 2017), pine cone (Gecgel and Kolancilar 2012), black acacia bark wastes (Da Silva et al 2018), and rice husk (Rahman et al 2012).…”

Section: Introductionmentioning

confidence: 99%

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Enhanced removal of cationic dye by eco-friendly activated biochar derived from rice straw

et al. 2020

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This report deals with converting the agriculture waste (rice straw) to environmental cleaner materials (biochar) using airless pyrolysis followed by eco-friendly activation. The biochar (p-Biochar) obtained after pyrolysis step (poorly active material) was activated using wet attrition method to give m-Biochar (highly active materials). The both p-Biochar and m-Biochar were characterized in detail and utilized for MB and CV dye removal from aqueous solution. Various parameters affecting the adsorption process such as dye concentration, adsorbent dose, contact time, temperature, NaCl dose and pH were investigated. The adsorption isotherm was well fitted using Langmuir isotherm, and the maximum adsorption capacity is 90.91 and 44.64 mg/g, for MB and CV dyes, respectively. The contact time data obtained showed that the two dyes were poorly adsorbed over p-Biochar. The equilibrium was reached quickly in 15 min for MB dye and 20 min for CV dye using the m-Biochar, and removal percent was 94.45 and 92.70% for MB and CV dyes, respectively. Moreover, the kinetic isotherm presented very well fitted by pseudo-second-order model. In addition, the adsorption percent increases with further increasing the pH value. Finally, we observed that m-Biochar highly adsorbs the MB dye compared with the CV dye over all experimental conditions.

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Section: Effect Of Adsorbent Dosagementioning

confidence: 87%

Section: Ftirmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Enhanced removal of cationic dye by eco-friendly activated biochar derived from rice straw

et al. 2020

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“…The addition of silver nanoparticles prepared this way enhanced the sensitivity of the fabricated electrode towards the oxidation of both dopamine and hydrogen peroxide, which occurred at a physiological pH, by a diffusion-controlled process, and with a linear increase in peak current with different concentrations of both products [139]. A. mearnsii Tannin extract from bark Stabilizer for low-density polyethylene films [129] Superparamagnetic nanoparticles [130] Nanocellulose films [131] Nanofiber membranes [132] Encapsulated nanoparticles [133] Lactic-co-glycolic acid microparticles drug carriers [134] Spent bark from tannin production Filler in polypropylene composites [135] Cellulose nanocrystals [136] Adsorbent (dyes) [137] Biochar from woodchips (activated) Adsorbent (ammonium) [138] A. melanoxylon Water extract from leaves Colloidal silver nanoparticles [139] A. saligna Silver nanoparticles from water leaves extract Adsorbent (dyes) [140] Water leaves extract Corrosion inhibitor [141] Superparamagnetic nanoparticles based on a core consisting of iron oxides can have relevant applications, such as biomedical uses as drug delivery systems or as adsorbents to remove pollutants from wastewaters [142]. Research for the preparation of these materials in an eco-friendly way is important for the sustainability of the process, and the use of green processes and biobased nanoparticles were investigated by Khan et al [130], using a tannin extract of A. mearnsii.…”

Section: Micro and Nanomaterials From Leaves And Barkmentioning

confidence: 99%

“…Silva et al [137] prepared an alternative adsorbent using A. mearnsii bark waste from a tannin industry. The bark was pretreated by steam explosion, the adsorbent was prepared by an acetosolv method (boiling for 24 h a mixture of steam-exploded bark, acetone and a small percentage of sulfuric acid) and is then used for crystal violet dye removal.…”

Section: Alternative Adsorbents From Bark Wood and Leavesmentioning

confidence: 99%

Insights for the Valorization of Biomass from Portuguese Invasive Acacia spp. in a Biorefinery Perspective

Correia

Quintela²,

Duarte

et al. 2020

Forests

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Acacia spp. are widespread all over the Portuguese territory, representing a threat to local biodiversity and to the productivity of the forest sector. The measures adopted in some countries for their eradication or to control their propagation are expensive, have been considered unfeasible from practical and economical perspectives, and have generated large amounts of residue that must be valorized in a sustainable way. This review brings together information on the valorization of bark, wood, leaves, flowers, pods, seeds, roots, and exudates from Acacia spp., through the production of high-value bioactive extracts (e.g., antioxidant, antimicrobial, anti-inflammatory, antidiabetic, antiviral, anthelmintic, or pesticidal agents, suitable to be explored by pharmaceutical, nutraceutical, cosmetics, and food and feed industries), its incorporation in innovative materials (e.g., polymers and composites, nanomaterials, low-cost adsorbents), as well as through the application of advanced thermochemical processes (e.g., flash pyrolysis) and pre-treatments to decompose biomass in its structural components, regarding the production of biofuels along with valuable chemicals derived from cellulose, hemicellulose, and lignin. The knowledge of this research is important to encourage an efficient and sustainable valorization of Acacia spp. within a biorefinery concept, which can bring a significant economic return from the valorization of these residues, simultaneously contributing to forest cleaning and management, to reduce the risk of fires, and to improve the social-economic development of rural areas.

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Invasive plants as biosorbents for environmental remediation: a review

et al. 2022

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Water contamination is an environmental burden for the next generations, calling for advanced methods such as adsorption to remove pollutants. For instance, unwanted biowaste and invasive plants can be converted into biosorbents for environmental remediation. This would partly solve the negative effects of invasive plants, estimated at 120 billion dollars in the USA.Here we review the distribution, impact, and use of invasive plants for water treatment, with emphasis on the preparation of biosorbents and removal of pollutants such as cadmium, lead, copper, zinc, nickel, mercury, chromate, synthetic dyes, and fossil fuels. Those biosorbents can remove 90-99% heavy metals from aqueous solutions. High adsorption capacities of 476.190 mg/g for synthetic dyes and 211 g/g for diesel oils have been observed. We also discuss the regeneration of these biosorbents.

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Preparation of an alternative adsorbent from Acacia Mearnsii wastes through acetosolv method and its application for dye removal

Cited by 47 publications

References 31 publications

Enhanced removal of cationic dye by eco-friendly activated biochar derived from rice straw

Enhanced removal of cationic dye by eco-friendly activated biochar derived from rice straw

Insights for the Valorization of Biomass from Portuguese Invasive Acacia spp. in a Biorefinery Perspective

Invasive plants as biosorbents for environmental remediation: a review

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