Process Optimization and Adsorptive Mechanism for Reactive Blue 19 Dye by Magnetic Crosslinked Chitosan/MgO/Fe3O4 Biocomposite

Jawad, Ali H.; Rangabhashiyam, S.; Abdulhameed, Ahmed Saud; Syed‐Hassan, Syed Shatir A.; ALOthman, Zeid A.; Wilson, Lee D.

doi:10.21203/rs.3.rs-836957/v1

Cited by 2 publications

(2 citation statements)

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“…The atmosphere for carbonization and activation is crucial in KOH‐activated carbon preparation. Nitrogen atmosphere is mostly reported 4, 7, 11, 12, 28, 49, 57, 69, 70, 173–175, 177, 183, 185–187, 190–197 and some researchers did not state the atmospheric condition under which their KOH‐activated carbons were prepared, e.g., Donnaperna et al. 19 Guizhen et al.…”

Section: Common Negligence In Koh‐activated Carbon Methodsmentioning

confidence: 99%

Modification, Production, and Methods of KOH‐Activated Carbon

2022

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This review covers research on the use of potassium hydroxide (KOH) to produce and modify activated carbon. The methods employed for activation by considering the activation process, carbonization, temperature, activation time, and KOH ratio to material are described and how the surface area, surface morphology, and functional groups are affected by the KOH ratio. Characterization techniques and preparation conditions are summarized. The activated carbon pore structure mainly depends on the burn‐off size and the time for activation is linked to the overall activation reaction rate. The increase in surface area and pore size depends on the ratio of KOH, showing that KOH affects the surface chemistry of the activated carbon. The sorbent‐sorbate interactions are strongly influenced by different parameters, which were also calculated in this review and used to evaluate such interactions.

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Section: Common Negligence In Koh‐activated Carbon Methodsmentioning

confidence: 99%

Modification, Production, and Methods of KOH‐Activated Carbon

2022

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“…Adsorption is a surface phenomenon where the adsorbent binds to the surface of the adsorbent (Rathi et al 2021). Activated carbon is the most widely used adsorbent for the removal of organic pollutants from liquid waste (Jawad et al 2021). Activated carbon can be produced from many materials with carbon content on a laboratory scale.…”

Section: Introductionmentioning

confidence: 99%

Modeling of Methylene blue removal with Zinc oxide-coated activated carbon with Artificial Neural Networks

Altıntıg,

Sarıcı,

Bozdag

et al. 2023

Preprint

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In the first stage of this study, activated carbon was obtained from agricultural waste hazelnut shells through chemical activation with H3PO4. Composite materials were obtained by coating the activated carbon with zinc oxide, whose BET surface area was calculated as 1278 m2/g. ZnO doped ZnO/AC composite was synthesized as an adsorbent for its possible application in the elimination of organic dyestuff MB and its removal efficiency was investigated. Morphological properties of ZnO/AC were characterized using analytical methods such as XRD, SEM, FT-IR. The adsorption system and its parameters were investigated and modeled using the response surface method of batch adsorption experiments. The experimental design consisted of three levels of pH (3, 6.5 and 10), initial MB concentration (50, 100 and 150 mg L− 1), dosage (0.1, 0.3 and 0.5 g 100 mL − 1), and contact time contact time (5, 50 and 95 min). The results from the RSM suggested that the MB removal efficiency was 98.7% under optimum conditions of the experimental factors. The R2 value, which expresses the significance of the model, was determined as 99.05%. Adsorption studies showed that the equilibrium data fit well with the Langmuir isotherm model compared to Freundlich. The maximum adsorption capacity was calculated as 270.70 mg g− 1.

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Process Optimization and Adsorptive Mechanism for Reactive Blue 19 Dye by Magnetic Crosslinked Chitosan/MgO/Fe3O4 Biocomposite

Cited by 2 publications

References 61 publications

Modification, Production, and Methods of KOH‐Activated Carbon

Modification, Production, and Methods of KOH‐Activated Carbon

Modeling of Methylene blue removal with Zinc oxide-coated activated carbon with Artificial Neural Networks

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