One-step ZnCl<sub>2</sub>/FeCl<sub>3</sub>composites preparation of magnetic activated carbon for effective adsorption of rhodamine B dye

Lee, Lin Zhi; Zaini, Muhammad Abbas Ahmad

doi:10.1080/15569543.2020.1837172

Cited by 44 publications

(7 citation statements)

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“…This was because ZnCl 2 destroyed cellulose and other macromolecular organics during the pyrolysis process, forming a large number of micropores and mesopores. 50 In contrast, the surface of the ABL@H 3 PO 4 sample was relatively rough, and many particles were attached to the surface. Furthermore, there were many macroscopic large holes inside and outside the ABL@KOH biochar, resulting from the gas produced by reacting C with KOH during reaction.…”

Section: Resultsmentioning

confidence: 96%

“…The surface of the ABL@ZnCl 2 sample was flat, and the particle size was more uniform. This was because ZnCl 2 destroyed cellulose and other macromolecular organics during the pyrolysis process, forming a large number of micropores and mesopores . In contrast, the surface of the ABL@H 3 PO 4 sample was relatively rough, and many particles were attached to the surface.…”

Section: Resultsmentioning

confidence: 99%

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Biochar Derived from Chinese Herb Medicine Residues for Rhodamine B Dye Adsorption

Zhao

et al. 2023

ACS Omega

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In this study, one well-known CHM residue (Atropa belladonna L., ABL) was used to prepare biochar capable of adsorbing rhodamine B (RhB) with an ultrahigh surface area for the first time. Three micropore-rich ABL biochars including ABL@ ZnCl 2 (1866 m 2 /g), ABL@H 3 PO 4 (1488 m 2 /g), and ABL@KOH (590 m 2 /g) were obtained using the one-step carbonization method with activation agents (ZnCl 2 , H 3 PO 4 , and KOH) via chemical activation and carbonization at 500 °C, and their adsorption performance for RhB was systematically studied with adsorption kinetics, isotherms, and thermodynamics. Through pore diffusion, π−π interaction, and hydrogen bonding, ABL biochar had excellent adsorption performance for RhB. Moreover, when C 0 was 200 mg/L, biochar dosage was 1 g/L, and the contact time was 120 min; the maximum RhB adsorption capacity and removal efficiency on ABL@ZnCl 2 and ABL@H 3 PO 4 were 190.63 mg/g, 95% and 184.70 mg/g, 92%, respectively, indicating that it was feasible to prepare biochar from the ABL residue for RhB adsorption. The theoretical maximum adsorption capacities of ABL@ZnCl 2 and ABL@H 3 PO 4 for RhB were 263.19 mg/g and 309.11 mg/g at 25 °C, respectively. Furthermore, the prepared biochar showed good economic applicability, with pay back of USD 972/t (ABL@ZnCl 2 ) and USD 987/t (ABL@H 3 PO 4 ), respectively. More importantly, even after five cycles, ABL@H 3 PO 4 biochar still showed great RhB removal efficiency, suggesting that it had a good application prospect and provided a new method for the resource utilization of traditional CHM residues. Additionally, pore diffusion, π−π interactions, and hydrogen bonding all play roles in the physical adsorption of RhB on ABL biochar. π−π interactions dominated in the early stage of RhB adsorption on ABL@H 3 PO 4 , while pore diffusion played a crucial role in the whole adsorption process on both adsorbents.

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Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%

Biochar Derived from Chinese Herb Medicine Residues for Rhodamine B Dye Adsorption

Zhao

et al. 2023

ACS Omega

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“…модифікація промислового активованого вугілля сполуками заліза чи інших феромагнетиків з подальшим відновлювальним відпалом; У роботах (Lee & Zaini, 2022;Luo et al, 2022) (Nguyen, Tran, Xu, & Lee, 2021).…”

Section: вступunclassified

Collective monograph «Sustainable Development: Environmental Protection. Energy Saving. Sustainable Environmental Management»

2022

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Міністерство освіти і науки України Львівська обласна державна адміністрація Національний університет «Львівська політехніка» Інститут сталого розвитку ім. В. Чорновола Західний науковий центр НАН України і МОН України Львівська обласна організація Всеукраїнської Екологічної Ліги Рекомендовано Науковою радою Державної екологічної академії післядипломної освіти та управління (протокол № 5-22 від 24.11.2022 року) Відповідальний за випуск: Вронська Н. Ю. кандидат технічних наук, доцент кафедри екології та збалансованого природокористування Національного університету «Львівська політехніка». Рецензенти: Пляцук Л. Д. доктор технічних наук, професор, завідувач кафедри екології та природозахисних технологій Сумського державного університету. Шмандій В. М. доктор технічних наук, професор кафедри екології та біотехнології Кременчуцького Національного університету імені Михайла Остроградського. Адаменко Я. О. доктор технічних наук, професор, завідувач кафедри екології Івано-Франківський національний технічний університет нафти і газу. Масікевич Ю. Г. Масікевич Ю. Г. доктор біологічних наук, професор кафедри гігієни та екології Вищого державного начального закладу України «Буковинський державний медичний університет».

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“…Hence, it is crucial to activate biomass with the combination of ZnCl 2 and FeCl 3 when few studies have been found in the literature. Lee and Ahmad Zaini [ 41 ] demonstrated that ZnCl 2 and FeCl 3 coactivation of palm kernel shell offered MAC with a very high S BET of 1775 m 2 /g. As a result, the obtained MAC demonstrated exceptional adsorption of rhodamine B at 371 mg/g.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Activated Carbon from ZnCl2 and FeCl3 Coactivation of Lotus Seedpod: One-Pot Preparation, Characterization, and Catalytic Activity towards Robust Degradation of Acid Orange 10

Nguyen

Bui

et al. 2023

Bioinorganic Chemistry and Applications

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Lotus seedpods (LSPs) are an abundant and underutilized agricultural residue discarded from lotus seed production. In this study, ZnCl2 and FeCl3 coactivation of LSP for one-pot preparation of magnetic activated carbon (MAC) was explored for the first time. X-ray diffraction (XRD) results showed that Fe3O4, Fe0, and ZnO crystals were formed in the LSP-derived carbon matrix. Notably, transmission electron microscopy (TEM) images showed that the shapes of these components consisted of not only nanoparticles but also nanowires. Fe and Zn contents in MAC determined by atomic absorption spectroscopy (AAS) were 6.89 and 3.94 wt%, respectively. Moreover, SBET and Vtotal of MAC prepared by coactivation with ZnCl2 and FeCl3 were 1080 m2/g and 0.51 cm3/g, which were much higher than those prepared by single activation with FeCl3 (274 m2/g and 0.14 cm3/g) or ZnCl2 (369 m2/g and 0.21 cm3/g). MAC was subsequently applied as an oxidation catalyst for Fenton-like degradation of acid orange 10 (AO10). As a result, 0.20 g/L MAC could partially remove AO10 (100 ppm) with an adsorption capacity of 78.4 mg/g at pH 3.0. When 350 ppm H2O2 was further added, AO10 was decolorized rapidly, nearly complete within 30 min, and 66% of the COD was removed in 120 min. The potent catalytic performance of MAC might come from the synergistic effect of Fe0 and Fe3O4 nanocrystals in the porous carbon support. MAC also demonstrated effective stability and reusability after five consecutive cycles, when total AO10 removal at 20 min of H2O2 addition slightly decreased from 93.9 ± 0.9% to 86.3 ± 0.8% and minimal iron leaching of 1.14 to 1.19 mg/L was detected. Interestingly, the MAC catalyst with a saturation magnetization of 3.6 emu/g was easily separated from the treated mixture for the next cycle. Overall, these findings demonstrate that magnetic activated carbon prepared from ZnCl2 and FeCl3 coactivation of lotus seedpod waste can be a low-cost catalyst for rapid degradation of acid orange 10.

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One-step ZnCl₂/FeCl₃composites preparation of magnetic activated carbon for effective adsorption of rhodamine B dye

Cited by 44 publications

References 57 publications

Biochar Derived from Chinese Herb Medicine Residues for Rhodamine B Dye Adsorption

Biochar Derived from Chinese Herb Medicine Residues for Rhodamine B Dye Adsorption

Collective monograph «Sustainable Development: Environmental Protection. Energy Saving. Sustainable Environmental Management»

Magnetic Activated Carbon from ZnCl2 and FeCl3 Coactivation of Lotus Seedpod: One-Pot Preparation, Characterization, and Catalytic Activity towards Robust Degradation of Acid Orange 10

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One-step ZnCl2/FeCl3composites preparation of magnetic activated carbon for effective adsorption of rhodamine B dye

Cited by 44 publications

References 57 publications

Biochar Derived from Chinese Herb Medicine Residues for Rhodamine B Dye Adsorption

Biochar Derived from Chinese Herb Medicine Residues for Rhodamine B Dye Adsorption

Collective monograph «Sustainable Development: Environmental Protection. Energy Saving. Sustainable Environmental Management»

Magnetic Activated Carbon from ZnCl2 and FeCl3 Coactivation of Lotus Seedpod: One-Pot Preparation, Characterization, and Catalytic Activity towards Robust Degradation of Acid Orange 10

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One-step ZnCl₂/FeCl₃composites preparation of magnetic activated carbon for effective adsorption of rhodamine B dye