Single-stage microwave assisted coconut shell based activated carbon for removal of Zn(II) ions from aqueous solution – Optimization and batch studies

Yusop, Mohamad Firdaus Mohamad; Jaya, Erniza Mohd Johan; Ahmad, Mohd Azmier

doi:10.1016/j.arabjc.2022.104011

Cited by 27 publications

(6 citation statements)

References 55 publications

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“…Likewise, other waste that has not been utilized, namely coconut shells. Coconut shells can be turned into charcoal (8)(9)(10)(11) and tiles or ceramics and bags.…”

Section: Introductionmentioning

confidence: 99%

Utilization Of Waste From Vco Production As A Nata De Coco Stater ToIncrease The Income Of The People Of Kwt “Bengke Sakato”.

Suryani,

Helga Yermadona,

Nurhaida Nurhaida

et al. 2024

JCSAS

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The service partner of KWT "Bengke Sakato" Sungai Sariak, Padang PariamanRegency, chaired by Ermatius. So far, his line of business is manufacturing VCO with the brand "Amboko" and processing 2000 coconuts every month. With the number of members as many as 25 people, this income is not sufficient. Waste from the VCO manufacturing process has not been utilized such as coconut water, coconut fiber, and coconut shells are still wasted. Whereas coconut water can be made into the starter and Nata de coco, the coir can be made cocopeat and the shell can be made of ceramics or bags that can increase income. This service program aims to empower and improve the community's economy. Namely the community members of KWT "Bengke Sakato". The method of service is that it begins with socialization, then carries out a workshop, after which monitoring and evaluation are carried out, as well as mentoring. This activity can produce starter or nata de coco seeds from pineapple and coconut water, where every 3 liters of coconut water and one pineapple produces 5 starter bottles with a price per bottle of IDR 50,000. In addition, it can also increase the knowledge of partners from 29.3% to 87.3%. It can be concluded that this service activity can increase partner knowledge about the manufacture of nata de coco seeds from coconut water which is a waste of the VCO process. And can improve the partner's economy. Making Nata de coco starter from coconut water can increase family income or empower the community.

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“…Likewise, other waste that has not been utilized, namely coconut shells. Coconut shells can be turned into charcoal (8)(9)(10)(11) and tiles or ceramics and bags.…”

Section: Introductionmentioning

confidence: 99%

Utilization Of Waste From Vco Production As A Nata De Coco Stater ToIncrease The Income Of The People Of Kwt “Bengke Sakato”.

Suryani,

Helga Yermadona,

Nurhaida Nurhaida

et al. 2024

JCSAS

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“…This dye dissolves in water and generates negative ions that are attracted to the partially positive side of the polar molecules of water, which makes it difficult to remove it from water during treatment 8 ; owing to the harmful effects caused by RBBR, various technologies, such as membrane filtration, chemical precipitation, coagulation-flocculation and adsorption, have been developed and employed to treat wastewater containing dyes 9 . Adsorption using activated carbon (AC) is among the most versatile technologies as it can removes a variety of contaminants, including synthetic dyes 10 – 13 , heavy metals 14 , 15 , phenolic compounds 16 , pesticides 17 and other organic compounds. Moreover, this method is relatively inexpensive, and AC can be derived from various biomass wastes, including water hyacinth 18 , algae 19 , coconut shell 20 , apple waste 21 , andiroba shell 22 , durian peel 23 , tea residue 24 , pine sawdust 25 , and herbaceous plants 26 , among others.…”

Section: Introductionmentioning

confidence: 99%

Production of activated carbon from date palm stones by hydrothermal carbonization and microwave assisted KOH/NaOH mixture activation for dye adsorption

Aloud,

Alharbi,

Hameed

et al. 2023

Sci Rep

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Date palm stones are regarded as possible alternatives to activated carbon (AC) precursors with high potential for various environmental applications. In this research study, date palm stones derived activated carbon (DPSAC) was used as adsorbent for removing toxic remazol brilliant blue R (RBBR). The synthesis of DPSAC involved a chemical treatment using KOH and NaOH (1:1). Characterization of DPSAC revealed that it exhibited a BET surface area of 715.30 m2/g, Langmuir surface area of 1061.93 m2/g, total pore volume of 0.39 cm3/g, and average pore diameter of 2.15 nm. Adsorption uptake of RBBR increased (from 24.54 to 248.54 mg/g), whereas the removal percentage decreased (from 98.16 to 82.85%) when the initial RBBR concentration increased (from 25 to 300 mg/L). The adsorption process performed best under acidic conditions (pH 3), with an RBBR uptake of 98.33 mg/g. Because of the high R2 values (0.9906 and 0.9779) and low average errors (6.24 and 13.95%), this adsorption process followed the Freundlich isotherm and pseudo-first-order (PFO) models, respectively. The Langmuir adsorption capacity (Qm) was 319.63 mg/g. Thermodynamic parameters were − 11.34 kJ/mol for ∆H° (exothermic in nature), 0.05 kJ/mol K for ∆S° (increasing randomness level at solid–liquid interface), − 27.37 kJ/mol for ∆G° (spontaneous), and 6.84 kJ/mol for Ea (controlled by physisorption).

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“…When present at concentrations that exceed permissible concentrations, these metals can cause adverse effects and impart serious health problems to humans, such as damaging kidneys, nerve tissues and the liver. Furthermore, they can cause cancer in vital organs, including the bladder, skin and lungs [4][5][6]. In addition, metals are able to cause various illnesses in the bones, muscles, fat and joints of people [7].…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Pb2+ by Activated Carbon Produced by Microwave-Assisted K2CO3 Activation of Date Palm Leaf Sheath Fibres

Aloud,

Hameed,

Yusop

et al. 2023

Water

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Date palm trees generate large amounts of various types of waste, including leaf sheath fibres, which can be used as a low-cost precursor for the production of biochar, including activated carbon (AC), which can be employed for the adsorption of contaminants. In the current study, activated carbon was produced from leaf sheath fibres of date palms (LSDPFAC) by the use of chemical activation with K2CO3 combined with microwave irradiation, and it was characterised and evaluated for its adsorptive capacity of lead ions (Pb2+). The Brunauer–Emmett–Teller (BET) surface area, Langmuir surface area, total pore volume and average pore diameter of the LSDPFAC were 560.20 m2/g, 744.31 m2/g, 0.29 cm3/g and 2.47 nm, respectively. A greater adsorption of Pb2+ was observed when its concentration was higher in the solution, and the greatest adsorption capacity of 5.67 mg Pb/g was observed at the highest pH. The results of isotherm and kinetic studies demonstrated that the adsorption of Pb2+ onto the LSDPFAC was best described by the Freundlich isotherm and pseudo-second-order (PSO) models. The Langmuir ΔG° and Ea were 6.39 kJ/mol, 0.12 kJ/mol K, −31.28 kJ/mol and 15.90 kJ/mol, respectively, which demonstrated that the adsorption of Pb2+ by the LSDPFAC was endothermic, spontaneous and governed by physisorption.

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Single-stage microwave assisted coconut shell based activated carbon for removal of Zn(II) ions from aqueous solution – Optimization and batch studies

Cited by 27 publications

References 55 publications

Utilization Of Waste From Vco Production As A Nata De Coco Stater ToIncrease The Income Of The People Of Kwt “Bengke Sakato”.

Utilization Of Waste From Vco Production As A Nata De Coco Stater ToIncrease The Income Of The People Of Kwt “Bengke Sakato”.

Production of activated carbon from date palm stones by hydrothermal carbonization and microwave assisted KOH/NaOH mixture activation for dye adsorption

Adsorption of Pb2+ by Activated Carbon Produced by Microwave-Assisted K2CO3 Activation of Date Palm Leaf Sheath Fibres

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