Breadnut peel as a highly effective low-cost biosorbent for methylene blue: Equilibrium, thermodynamic and kinetic studies

Lim, Linda B.L.; Priyantha, Namal; Tennakoon, D. T. B.; Chieng, Hei Ing; Dahri, Muhammad Khairud; Suklueng, Montri

doi:10.1016/j.arabjc.2013.12.018

Cited by 119 publications

(48 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The processing of 1000 kg of ash gourd generates husk was capable of adsorbing as high as 261.8 g of Cr(VI). Breadnut skin, in both its unmodified (KS) and base-modified (BM-KS) synthesized, was examined for its potential use as a low-cost adsorbent for the elimination of malachite green (MG) [88]. The absorption ability was greatly enhanced when breadnut skin was chemically modified with NaOH, leading to an absorption ability of 353.0mg/g.…”

Section: Bio-waste Materials As Adsorbent Of Contaminate From Waste Wmentioning

confidence: 99%

Applications of Bio-waste Materials as Green Synthesis of Nanoparticles and Water Purification

Ali¹

2017

View full text Add to dashboard Cite

Towards the future of green, sustainable and renewable products the suggestion of using the agriculture biomass in the coming decades got increased. Biomass material is one of the important sources of alternative material for the production of biocomposite products. An increasing global awareness about environmental issues is acting as the driving force behind the utilization of biomass material as valuable products. Bio-waste materials (agricultural waste) have been recognized as an ecological burden for the society they stimulated new gateways for the production of renewable, low cost and sustainable adsorbents for water treatment applications. In the area of water purification, nanotechnology offers the possibility of an efficient removal of pollutants and bacteria. Adsorption has proved that it is the best process of water treatment technologies, because of its significant advantages. Different modification methods of waste-based adsorbents, have also been presented to highlight and discuss the key advancements on the preparation of novel adsorbents using agricultural "agro-waste". Adsorption mechanisms responsible for pollutants removal by waste-based adsorbents have also been discussed. It also focuses on the computational aspects of binding of biomolecules to nanoparticles (NPs) and some of the applications of the biosynthesized NPs as water purification. The nature acts like a large ''bio-laboratory" comprising of plants, algae, fungi, yeast, etc. which are composed of biomolecules. These naturally occurring biomolecules have been identified to play an active role in the formation of nanoparticles with distinct shapes and sizes thereby acting as a driving force for the designing of greener, safe and environmentally benign protocols for the synthesis of NPs. The biosynthesis of NPs using waste materials will help researchers not only to design safer nanomaterials but also to promote the understanding of health and safety considerations of NPs. Useful materials can be produced easily even at reasonable scale because the biomaterial based routes eliminate the need to use toxic chemicals. The aim of this review is to summarize the adsorption capacities for organic and inorganic pollutants by different bio-waste-based adsorbents.

show abstract

Section: Bio-waste Materials As Adsorbent Of Contaminate From Waste Wmentioning

confidence: 99%

Applications of Bio-waste Materials as Green Synthesis of Nanoparticles and Water Purification

Ali¹

2017

View full text Add to dashboard Cite

show abstract

“…The point of zero charge (pH pzc ) is the pH at which the surface of an adsorbent has a net charge of zero, and the surface of an adsorbent will be positive and will attract anions if the pH is lower than pH pzc , while a negatively charged surface will favor the adsorption of cationic substances if the pH is above the pH pzc 9 . At pH below the isoelectric point, a dye exists predominantly in its molecular form, while above the isoelectric point, it exists with a higher proportion in its dissociated form.…”

Section: Congo Red and Point Of Zero Chargementioning

confidence: 99%

“…The MacArthur-Wilson model is a twoparameter negative exponential model 25 which takes the form ... (9) where a ti (mg g -1 ) is the amount of dye adsorbed at time t i , b o (mg g 1 ) is the random error term. The linearized form of (9) …”

Section: The Macarthur-wilson Modelmentioning

confidence: 99%

“…Hence, this necessitates a need for cheaper and more efficient alternative methods, and one of these is biosorption. One reason that makes biosorption a potential alternative to the current commercial methods is the abundance of biomass 9 . Utility of calamansi peels as bioadsorbent would help in the reduction of agricultural waste and pollution.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Biosorption Kinetic Models on the Removal of Congo red onto Unripe Calamansi (Citrus microcarpa) peels

Sumalapao¹,

Distor²,

Ditan³

et al. 2016

Orient. J. Chem

View full text Add to dashboard Cite

Unripe calamansi peels were prepared and used as a bioadsorbent in the removal of congo red from an aqueous solution using batch adsorption studies. The efficiency of adsorption was evaluated by varying adsorbent dose and contact time. The removal of congo red increased at higher adsorbent dose and longer contact time. The overall rate of adsorption processes appeared to be in accordance with the pseudo-second order reaction mechanism. Higher initial adsorption rate, extent of surface coverage, and activation energy were favored at a lower adsorbent dose, while the intraparticle diffusion was relatively faster at a higher adsorbent dose. The intraparticle diffusion, Elovich, and MacArthur-Wilson models were adequate in describing the chaotic behavior of the kinetic processes involved in the removal of congo red dye onto unripe calamansi peels.

show abstract

“…Previous study on the use of water lettuce to remove a triphenylmethane dye (methyl violet) from aqueous solution has been reported ) and the Artocarpus spp. were used in adsorption studies to remove methylene blue, cadmium and copper (Kooh et al 2016a, b;Lim et al 2012Lim et al , 2015Lim et al , 2017Priyantha et al 2013), showing their potentials as adsorbent to remove basic dyes and heavy metals.…”

Section: Introductionmentioning

confidence: 99%

Separation of acid blue 25 from aqueous solution using water lettuce and agro-wastes by batch adsorption studies

et al. 2018

Self Cite

View full text Add to dashboard Cite

Three plant-based materials, namely water lettuce (WL), tarap peel (TP) and cempedak peel (CP), were used to investigate their potentials as adsorbents using acid blue 25 (AB25) dye as a model for acidic dye. The adsorbents were characterised using Fourier transform infrared spectroscopy, X-ray fluorescence and scanning electron microscope. Batch experiments involving parameters such as pH, temperature, contact time, and initial dye concentration were done to investigate the optimal conditions for the adsorption of AB25 onto the adsorbents. Thermodynamics study showed that the uptake of AB25 by the three adsorbents was feasible and endothermic in nature. Both the Langmuir and Freundlich isotherm models can be used to describe the adsorption process of AB25 onto WL and CP while pseudo-second-order fitted the kinetics data, suggesting that chemisorptions were majorly involved. The use of 0.1 M of NaOH showed the best results in regenerating of the WL, TP and CP's adsorption ability after AB25 treatment.

show abstract

Breadnut peel as a highly effective low-cost biosorbent for methylene blue: Equilibrium, thermodynamic and kinetic studies

Cited by 119 publications

References 51 publications

Applications of Bio-waste Materials as Green Synthesis of Nanoparticles and Water Purification

Applications of Bio-waste Materials as Green Synthesis of Nanoparticles and Water Purification

Biosorption Kinetic Models on the Removal of Congo red onto Unripe Calamansi (Citrus microcarpa) peels

Separation of acid blue 25 from aqueous solution using water lettuce and agro-wastes by batch adsorption studies

Contact Info

Product

Resources

About