Remarkable synergy between sawdust biochar and attapulgite/diatomite after co-ball milling to adsorb methylene blue

Jiang, Fei; Li, Feiyue; Zimmerman, Andrew R.; Yu, Zhongpu; Ji, Licheng; Wei, Chengcheng; Zhang, Xueyang; Gao, Bin

doi:10.1039/d3ra01123b

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Cited by 6 publications

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Biochar Polymer Composites for Wastewater Treatment

Aryanfar,

García Alcaraz,

Keçebaş

et al. 2024

Reference Module in Materials Science and Materials Engineering

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Biochar Polymer Composites for Wastewater Treatment

Aryanfar,

García Alcaraz,

Keçebaş

et al. 2024

Reference Module in Materials Science and Materials Engineering

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Remediation of atrazine in environment by persulfate activation via N/B co-doped Si-rich biochar: Performance, mechanisms, degradation pathways and phytotoxicity

Zhang,

Yu,

Han

et al. 2023

Chemical Engineering Journal

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Mechanism Study on the Immobilization of Cu²⁺/Pb²⁺ in Aqueous Phase by Mineral Co-Milling-Modified Biochar

Jiang,

Liu,

et al. 2024

Langmuir

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A large number of studies have shown that the modification of biochar can greatly improve its adsorption capacity. This study adopts a one-step ball milling technology without solvent medium, using sawdust biochar (600 °C) and attapulgite/diatomaceous earth to prepare MABC10%/MDBC10% (mass ratio: 10% attapulgite/diatomite +90% biochar coabrasive). Characterization experiments show that attapulgite/diatomite was successfully loaded on biochar and has more C/O functional groups and wider adsorption pore sizes. Adsorption kinetics and isotherm experiments show that the adsorption process of MABC10% and MDBC10% on Cu2+/Pb2+ was mainly multilayer chemical adsorption. The adsorption capacities of MABC10% and MDBC10% for Cu2+ were 40.85 and 65.20 mg·L–1, respectively. The adsorption amounts of Pb2+ were 82.63 and 71.32 mg·L–1, respectively. The particle diffusion model shows that the adsorption process was controlled by both the surface adsorption rate limitation and boundary layer diffusion. The higher acidity in the solution will cause part of the negative charges on the surface of attapulgite/diatomite to be neutralized, thereby hindering its adsorption of Cu2+/Pb2+. The presence of coexisting ions did not significantly affect the adsorption performance. Mechanistic studies have shown that pore diffusion, active sites provided by C/O functional groups, electrostatic interactions, and cation exchange are the main mechanisms of MABC10% adsorption of Cu2+/Pb2+. In summary, MABC10% has a significant adsorption synergistic effect compared to MBC. It was an economical and effective adsorbent, and the higher the pH value of the wastewater, the more significant the adsorption effect.

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Remarkable synergy between sawdust biochar and attapulgite/diatomite after co-ball milling to adsorb methylene blue

Abstract: The mechanical force of ball milling can prepare new nanocomposite biochar materials. Mineral nanocomposite biochar material exhibits positive synergy. The nanocomposite biochar material has excellent adsorption capacity.

Cited by 6 publications

References 56 publications

Biochar Polymer Composites for Wastewater Treatment

Biochar Polymer Composites for Wastewater Treatment

Remediation of atrazine in environment by persulfate activation via N/B co-doped Si-rich biochar: Performance, mechanisms, degradation pathways and phytotoxicity

Mechanism Study on the Immobilization of Cu²⁺/Pb²⁺ in Aqueous Phase by Mineral Co-Milling-Modified Biochar

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Remarkable synergy between sawdust biochar and attapulgite/diatomite after co-ball milling to adsorb methylene blue

Abstract: The mechanical force of ball milling can prepare new nanocomposite biochar materials. Mineral nanocomposite biochar material exhibits positive synergy. The nanocomposite biochar material has excellent adsorption capacity.

Cited by 6 publications

References 56 publications

Biochar Polymer Composites for Wastewater Treatment

Biochar Polymer Composites for Wastewater Treatment

Remediation of atrazine in environment by persulfate activation via N/B co-doped Si-rich biochar: Performance, mechanisms, degradation pathways and phytotoxicity

Mechanism Study on the Immobilization of Cu2+/Pb2+ in Aqueous Phase by Mineral Co-Milling-Modified Biochar

Contact Info

Product

Resources

About

Mechanism Study on the Immobilization of Cu²⁺/Pb²⁺ in Aqueous Phase by Mineral Co-Milling-Modified Biochar