Preparation and characterization of rice husk adsorbents for phenol removal from aqueous systems

Daffalla, Samah; Mukhtar, Hilmi; Shaharun, Maizatul Shima

doi:10.1371/journal.pone.0243540

Cited by 60 publications

(38 citation statements)

References 38 publications

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“…Rice husk potentiality as sorbent material for removing different pollutants has been reported. The typical chemical components of this biomass such as cellulose, hemicellulose, lignin, and other organic matter have been proven favorable supporting adsorption aims [63].…”

Section: Rice Huskmentioning

confidence: 99%

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Current Development of Sorbents Derived From Plant and Animal Waste as Green Solution for Treating Polluted Aqueous Media

Martini

Afroze

2021

Jurnal Teknologi

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In this review article, the recent development of organic sorbents derived from plant and animal waste for treating polluted aqueous media is presented. The application of biomass has been recognized reliable to adsorb hazardous pollutants contained in wastewater generated by emerging industries. This paper also discusses other existing technologies for removing pollutants including heavy metals, dyes, oil and grease, antibiotic and phenolic compounds from polluted aqueous media. Furthermore, several prominent examples of plant and animal wastes such as eucalyptus bark, pine bark, rice husk, various fruit peels, and animal bones are also properly reviewed. The effects of modification techniques on sorbent performance such as carbonization, pyrolysis, and chemical impregnation using acid or alkaline chemicals are considerably included. Some gaps in current literature are also discussed including the tendency of certain targeted pollutants, the use of simulated aqueous media, the scale of research projects, and the prominent modification procedures. Eventually, based on the relevant literature, clear conclusion has been drawn that these natural disposals have great potentiality as environmentally friendly sorbent alternative to other commercial expensive sorbents, and their reuse has been part of green solutions supporting a circular economy system.

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Section: Rice Huskmentioning

confidence: 99%

“…Recalcitrant pollutants like phenol could be removed by rice husk based-sorbent [63]. By thermal activation mode, treated rice husk showed higher surface area leading to higher phenol removal efficiency corresponding to some particular functional groups such as OH, C-C, C = C, C≡C, C-O.…”

Section: Rice Huskmentioning

confidence: 99%

Current Development of Sorbents Derived From Plant and Animal Waste as Green Solution for Treating Polluted Aqueous Media

Martini

Afroze

2021

Jurnal Teknologi

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“…The absorption bands at Ѵ max 1403 cm -1 and V max 1410 cm -1 were assigned to COO stretching vibrations in esters and carboxylic acids [19]. The band at Ѵ max between 770 -730 cm -1 was associated with -C-H stretching vibration of longchain methyl rock.…”

Section: Analysis Of Functional Groups In the Unpyrolyzed And Pyrolyzed Rice Husk Biochar Before And After Loading With Heavy Metal Ionsmentioning

confidence: 95%

Synthesis and Characterization of Rice Husk Biochar and its Application in the Adsorption Studies of Lead and Copper

Ndekei

Gitita

Njomo

et al. 2021

IRJPAC

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The present study aimed to use chemically activated rice husk biochar as an adsorbent for the removal of heavy metals from an aqueous solution. A series of the Rice husk biochar (RHB) samples were produced at different temperatures, as follows: 300, 400, 500, 600, and 700℃ for 2 hours each through pyrolysis process in Dalhan Scientific Muffle Furnace. The chemically treated rice husk biochar synthesized at 500℃ was used as potential char for removal of Cu(II) and Pb(II) from aqueous solutions. The sorption of these metal ions from an aqueous solution was determined after adsorption using Flame Atomic Absorption Spectrophotometry (AAS). The Shimadzu IR Affinity Fourier Transform Infra-Red Spectroscopy (FT-IR) was used for the characterization of rice husk char and it revealed the presence of OH, C=O, and COO- bonds which are responsible for heavy metal ions adsorption through chemisorption. The effect of adsorption parameters was determined that is; pyrolysis temperature which was found to be 500℃, the optimal contact time for the metal ions Cu (II) and Pb (II) was found to be 60 minutes, the optimum dosage was 0.250 g and optimum initial concentration was 2 mg/l. The kinetics were tested against pseudo-first order and pseudo-second order model as well Langmuir and Freundlich isotherms. Cu(II), adsorption process followed Pseudo-second order kinetics with regression coefficient (R2) 0.9942 and Langmuir isotherm model with R2 0.9895. For Pb(II), adsorption capacity followed Pseudo-second order kinetics with regression coefficient (R2) 0.99991 and Freundlich isotherm model with R2 0.96675 optimum equilibrium adsorption capacity of 0.5274 mg/g.

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“…This value was signicantly higher than that of rice husk activated by chemical as well as physical methods in the many previous studies. 29,31,[33][34][35]…”

Section: Effect Of Carbonization and Activation Temperature On Ac Formationmentioning

confidence: 99%

Assessment and treatment of floodwater in the Vietnamese Mekong Delta using a simple filter system based on silver nanoparticles coated onto activated carbon derived from rice husk

et al. 2021

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Preparation and characterization of rice husk adsorbents for phenol removal from aqueous systems

Cited by 60 publications

References 38 publications

Current Development of Sorbents Derived From Plant and Animal Waste as Green Solution for Treating Polluted Aqueous Media

Current Development of Sorbents Derived From Plant and Animal Waste as Green Solution for Treating Polluted Aqueous Media

Synthesis and Characterization of Rice Husk Biochar and its Application in the Adsorption Studies of Lead and Copper

Assessment and treatment of floodwater in the Vietnamese Mekong Delta using a simple filter system based on silver nanoparticles coated onto activated carbon derived from rice husk

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