Chitosan/Carbon-Doped TiO2 Composite for Adsorption of Two Anionic Dyes in Solution and Gaseous SO2 Capture: Experimental Modeling and Optimization

Abdulhameed, Ahmed Saud; Jawad, Ali H.; Ridwan, Muhammad; Khadiran, Tumirah; Wilson, Lee D.; Yaseen‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬, Zaher Mundher

doi:10.1007/s10924-022-02532-z

Cited by 55 publications

(8 citation statements)

References 58 publications

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“…It is crucial to conduct an additional analysis of the established model by investigating the normal probability plot ( Figure 5 a) to make sure the residuals are normally distributed [ 37 ]. Both the model’s design and the results of the ANOVA are fully satisfactory, as shown by the normal distribution of values in Figure 5 a around the 45° straight line.…”

Section: Resultsmentioning

confidence: 99%

“…The adsorption capacity of MSMPAC was significantly elevated (14.4 to 190.2 mg/g) because of raising the initial MB concentration from 20 to 200 mg/L. The influence is caused by the MB’s movement to the active adsorption sites and the MB’s increased diffusion within the internal pores of the MSMPAC, which is caused by the higher concentration gradient [ 37 ].…”

Section: Resultsmentioning

confidence: 99%

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High-Surface-Area-Activated Carbon Derived from Mango Peels and Seeds Wastes via Microwave-Induced ZnCl2 Activation for Adsorption of Methylene Blue Dye Molecules: Statistical Optimization and Mechanism

et al. 2022

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In this study, Mango (Mangifera indica) seeds (MS) and peels (MP) seeds mixed fruit wastes were employed as a renewable precursor to synthesize high-surface-area-activated carbon (MSMPAC) by using microwave-induced ZnCl2 activation. Thus, the applicability of MSMPAC was evaluated towards the removal of cationic dye (methylene blue, MB) from an aqueous environment. The key adsorption factors, namely A: MSMPAC dose (0.02–0.1 g), B: pH (4–10), and C: time (5–15 min), were inspected using the desirability function of the Box-Behnken design (BBD). Thus, the adsorption isotherm data were found to correspond well with the Langmuir model with a maximum adsorption capacity of (232.8 mg/g). Moreover, the adsorption kinetics were consistent with both pseudo-first-order and pseudo-second-order models. The spontaneous and endothermic nature of MB adsorption on the MSMPAC surface could be inferred from the negative ∆G° values and positive value of ∆H°, respectively. Various mechanisms namely electrostatic forces, pore filling, π-π stacking, and H-bonding govern MB adsorption by the MSMPAC. This study demonstrates the utility of MS and MP as renewable precursors to produce high-surface area MSMPAC with a potential application towards the removal of cationic organic dyes such as MB.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

High-Surface-Area-Activated Carbon Derived from Mango Peels and Seeds Wastes via Microwave-Induced ZnCl2 Activation for Adsorption of Methylene Blue Dye Molecules: Statistical Optimization and Mechanism

et al. 2022

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“…It is characterized as harmless, biodegradable, eco‐friendly, and have the grand potential for various applications such as agricultural purpose, drug delivery, food packaging, and so on. [ 20–22 ] In addition, it can be used in water treatment, for example, its composites with montmorillonite, [ 23 ] carbon‐doped TiO 2 , [ 24 ] and iron Cs [ 25 ] were prepared to be used in the adsorption of methyl orange (MO) dye.…”

Section: Introductionmentioning

confidence: 99%

Employment and performance of modified chitosan for the removal of copper ions and methylene blue in wastewater

Mohamed

El‐Aziz

Kamal

et al. 2023

Polymer Engineering & Sci

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Exploring new and efficient adsorbents for the purification of water from heavy metals and organic waste to provide clean drinking water is highly demanded. Herein, the synthesis of polymeric materials based on grafting chitosan (Cs) by various acrylic monomers as acrylic acid (AA), 2‐acrylamide‐2‐methyl propane sulfonic acid (AMPS), and acrylamide (Am) namely S1, S2, or S3, respectively, using methylene bisacrylamide (NMBAm) as crosslinker was performed. The formed polymeric compound was characterized by utilizing Fourier transform infrared spectroscopy, scanning electron microscopy, energy dispersive X‐ray, and Brunauer–Emmett–Teller. It was determined that S2 possessed a higher specific surface area of 109.133 m2/g, which is higher than S1 (71.2553 m2/g) and S3 (62.8847 m2/g). The as‐prepared polymeric compounds were utilized for the removal of copper ions (Cu2+) and methylene blue (MB) from wastewater in the absence and presence of UV light irradiation. The kinetic study and the adsorption isotherms for the removal of Cu2+ and MB as organic pollutants using the as‐prepared polymeric compound were studied.

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“…Chitosan (CTS), as a natural cationic polysaccharide, is rich in amino and hydroxyl groups, and is widely used due to its characteristics such as excellent adsorption capacity, nontoxicity, hydrophilicity, biodegradability and biocompatibility 17,18 for the treatment of harmful anions in effluents. However, unfortunately, raw chitosan suffers from drawbacks such as low porosity and poor mechanical strength.…”

Section: Introductionmentioning

confidence: 99%

Excellent regeneration, easy separation and high capacity of 3D chitosan–melamine sponge composites for anionic dye removal

et al. 2023

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Chitosan/Carbon-Doped TiO2 Composite for Adsorption of Two Anionic Dyes in Solution and Gaseous SO2 Capture: Experimental Modeling and Optimization

Cited by 55 publications

References 58 publications

High-Surface-Area-Activated Carbon Derived from Mango Peels and Seeds Wastes via Microwave-Induced ZnCl2 Activation for Adsorption of Methylene Blue Dye Molecules: Statistical Optimization and Mechanism

High-Surface-Area-Activated Carbon Derived from Mango Peels and Seeds Wastes via Microwave-Induced ZnCl2 Activation for Adsorption of Methylene Blue Dye Molecules: Statistical Optimization and Mechanism

Employment and performance of modified chitosan for the removal of copper ions and methylene blue in wastewater

Excellent regeneration, easy separation and high capacity of 3D chitosan–melamine sponge composites for anionic dye removal

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