Adsorption enhancement of elemental mercury by various surface modified coconut husk as eco-friendly low-cost adsorbents

Johari, Khairiraihanna; Saman, Norasikin; Song, Shiow Tien; Chin, Cheu Siew; Kong, Helen; Mat, Hanapi

doi:10.1016/j.ibiod.2016.01.004

Cited by 95 publications

(41 citation statements)

References 35 publications

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“…As for activated carbon, the threshold limit of ash content should be less than 15% (De Gisi et al 2016). Activated carbon with low ash content suggests the precursor have low extractives with little or no wax and resin (Johari et al 2016). Meanwhile, activated carbon with high ash content has weaker mechanical strength and has the tendency to effects adsorptive capacity (Abdullah et al 2001).…”

Section: Resultsmentioning

confidence: 99%

“…Other than food source, coconut has been used as fuel wood, drink, edible oil, fiber, animal feed and building materials. Some coconut by-products, such as husks (Johari et al 2016), shells (Cazetta et al 2011;Isah et al 2015), mesocarp (Vieira et al 2010(Vieira et al , 2009, frond (Njoku et al 2014) and coir (Etim et al 2016) have been used as the potential precursors for the production of activated carbons. Its leaves however have limited function.…”

Section: Introductionmentioning

confidence: 99%

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FeCl3-Activated Carbon Developed from Coconut Leaves: Characterization and Application for Methylene Blue Removal

Rashid¹,

Jawad²,

Ishak³

et al. 2018

JSM

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In this study, coconut leaves were used as a starting material for the production of activated carbon by thermal carbonization using FeCl 3 -activation method. Dalam kajian ini, daun kelapa telah dipilih sebagai bahan pemula bagi penghasilan karbon teraktif melalui penkarbonan haba dengan menggunakan FeCl 3 sebagai agen pengaktif. Pencirian karbon teraktif (FAC) dianalisis dengan menggunakan mikroskop elektron imbasan (SEM), transformasi Fourier inframerah (FTIR) dan analisis elemen (CHNS-O). Beberapa parameter yang mempengaruhi penyahwarnaan metilena biru pada suhu 303 K seperti dos bahan penjerap (0.02-0.25 g), pH awal (3-11), kepekatan (30-350 mg/L) dan masa (0-180 min) telah dikaji dan dioptimumkan dengan menggunakan

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

FeCl3-Activated Carbon Developed from Coconut Leaves: Characterization and Application for Methylene Blue Removal

Rashid¹,

Jawad²,

Ishak³

et al. 2018

JSM

View full text Add to dashboard Cite

show abstract

“…The spectrum emerged at 1024 cm -1 is the C-O vibration in alcohols, ethers or acids,the peak at ~ 2900 represented the stretching C-H in the CH2 group. The spectrum appearing at 1558 cm -1 is attributed to C = C vibrations in aromatic cycles (Johari et al, 2016). The species -NH2, -NH vibrate in the range of 3200 -3500 cm -1 , the characteristic stretch of their presence is effectively lost in the wide stretch band OH.…”

Section: Ftir Analysismentioning

confidence: 99%

Nitrogen Enrichment of Activated Carbon Made From Coconut Shell of Ivory Coast and its Application in Cd2+ Ions Removal

2018

Aust. J. Basic & Appl. Sci.

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“…Many studies have been conducted using low-cost materials such as agrowastes [5][6][7][8], sewage sludge carbon [9], industrial wastes [10,11], peats and soils [12] for removing mercury ions from aqueous solutions and wastewaters. Several chemical modifications [8,[13][14][15][16][17] and thermochemical processes [18][19][20] have been performed to increase the adsorption performance of the pristine adsorbents.…”

Section: Introductionmentioning

confidence: 99%

Enhanced adsorption capacity and selectivity toward inorganic and organic mercury ions from aqueous solution by dye‐affinity adsorbents

Saman

Johari

Song

et al. 2018

Env Prog and Sustain Energy

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Adsorption of inorganic mercury [Hg(II)] and organic methylmercury [MeHg(II)] ions onto dye‐affinity agrowaste (dye‐AW) was investigated. The dye‐affinity adsorbents were prepared by the chemical‐thermal reaction between the agrowaste (AW) and dye solutions [i.e., Reactive Red 120 (RR), Reactive Black B (RB), Methylene Blue (MB), and Methyl Orange (MO)] under an alkaline condition. An almost perfect removal of Hg(II) was observed for all adsorbents, while for MeHg(II), the dye‐affinity adsorbents have a higher removal efficiency than a pristine adsorbent. The maximum adsorption capacity (Qe, max) of mercury ions onto the Reactive Red 120‐modified AW (RR‐AW) was 2.60 mmol g−1 for Hg(II) and 0.76 mmol g−1 for MeHg(II). The adsorption rate of Hg(II) was faster than MeHg(II), and both kinetic data followed the pseudo‐second order kinetic model with the diffusion steps controlled by the film diffusion. The regenerated adsorbent showed very encouraging results especially toward Hg(II). The promising results were also obtained by using oilfield produced water (OPW) and natural gas condensate (NGC) samples. These studies finally demonstrated that the agricultural wastes initially loaded with dyes have the potential to be good mercury adsorbents. © 2018 American Institute of Chemical Engineers Environ Prog, 38: S54–S67, 2019

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Adsorption enhancement of elemental mercury by various surface modified coconut husk as eco-friendly low-cost adsorbents

Cited by 95 publications

References 35 publications

FeCl3-Activated Carbon Developed from Coconut Leaves: Characterization and Application for Methylene Blue Removal

FeCl3-Activated Carbon Developed from Coconut Leaves: Characterization and Application for Methylene Blue Removal

Nitrogen Enrichment of Activated Carbon Made From Coconut Shell of Ivory Coast and its Application in Cd2+ Ions Removal

Enhanced adsorption capacity and selectivity toward inorganic and organic mercury ions from aqueous solution by dye‐affinity adsorbents

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