Biomass-based carbon microspheres for removing heavy metals from the environment: a review

Fang, Yi-Chuan; Liu, Leng; Xin, Hu; Wang, Yuan; Sun, Xun

doi:10.1016/j.mtsust.2022.100136

Cited by 20 publications

(4 citation statements)

References 136 publications

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“…Water bodies polluted with oil have a great possibility of endangering marines' lives, and damaging human's food chain, consequently (Jing et al 2024;Li et al 2024b). Heavy metal ions are resistant to degradation and highly-applicable in industries (Fang et al 2022; Wang et al 2023a;Du et al 2024). Thus, the appearance of heavy metal ions, that are toxic and carcinogen, in the industrial e uents are another major source of producing contaminated water (Wang and Yu et al 2024).…”

Section: Introductionmentioning

confidence: 99%

Multifunctional MnO2 nanorods-modified wood sponge for water remediation: Applications for heavy metal sorption and oil/water separation

Saghir,

Goharshadi

2024

Preprint

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This study focuses on the development of a wood sponge (WS) modified with MnO2 nanorods (MnO2/WS) from balsa natural wood, as an abundant environmental-friendly raw material, to adsorb organic solvents, oils, and heavy metal ions from water. The MnO2/WS composite exhibits an exceptionally low density of 0.014 g cm− 3 and a high porosity exceeding 97%. MnO2/WS demonstrates successful sorption-desorption cycles over 20 iterations. Zeta potential analysis reveals the negative charge (-22.31 mV) of MnO2 nanorods at pH 4.68, underscoring their affinity for adsorbing positively-charged heavy metal ions commonly found in industrial effluents. Moreover, WS exhibits exceptional mechanical robustness, enduring 1000 stress-strain cycles with high shape recovery, ensuring its durability under operational conditions. Data above proved several strengths for MnO2/WS, such as cost-effective production process, high reusability, remarkable sorption capacities for carbon tetrachloride and soybean oil at 29.56 and 17.65 times its mass, respectively, efficient performance, and the capability to produce potable water from real industrial effluents position MnO2/WS as an ideal solution for mitigating water crises.

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Section: Introductionmentioning

confidence: 99%

Multifunctional MnO2 nanorods-modified wood sponge for water remediation: Applications for heavy metal sorption and oil/water separation

Saghir,

Goharshadi

2024

Preprint

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“…Discharging these heavy metal ions into water source or water environment will not only pollute the ecological environment, but also may hurt the human body. Thus, when the level of heavy metal ions in human body reaches to a certain content, these substances will damage human's organs and cause acute or chronic poisoning and impairing [ 5 ]. Therefore, how to remove these toxic metal ions from wastewater has fascinated widespread eyes.…”

Section: Introductionmentioning

confidence: 99%

Modified coconut shell biochars (MCSBCs): Fabrication and their adsorptions for Pb(II)

Chen,

Duan,

et al. 2024

Heliyon

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“…Water pollution has become a global problem and is one of the most devastating economic issues in recent decades, especially pollution by heavy metal ions [1,2]. The primary sources of heavy metal ions in water include electroplating, batteries, dyes, metallurgy and smelting, chemical manufacturing, and the electrical industry [3,4].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Cellulose–Poly(Acrylic Acid) Using Sugarcane Bagasse Extracted Cellulose Fibres for the Removal of Heavy Metal Ions

Xie

Wen

et al. 2023

IJMS

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In this study, sugarcane bagasse (SCB) was treated with sodium hydroxide and bleached to separate the non-cellulose components to obtain cellulose (CE) fibres. Cross-linked cellulose–poly(sodium acrylic acid) hydrogel (CE–PAANa) was successfully synthesised via simple free-radical graft-polymerisation to remove heavy metal ions. The structure and morphology of the hydrogel display an open interconnected porous structure on the surface of the hydrogel. Various factors influencing batch adsorption capacity, including pH, contact time, and solution concentration, were investigated. The results showed that the adsorption kinetics were in good agreement with the pseudo-second-order kinetic model and that the adsorption isotherms followed the Langmuir model. The maximum adsorption capacities calculated by the Langmuir model are 106.3, 333.3, and 163.9 mg/g for Cu(II), Pb(II), and Cd(II), respectively. Furthermore, X-ray photoelectron spectroscopy (XPS) and energy-dispersive X-ray spectrometry (EDS) results demonstrated that cationic exchange and electrostatic interaction were the main heavy metal ions adsorption mechanisms. These results demonstrate that CE–PAANa graft copolymer sorbents from cellulose-rich SCB can potentially be used for the removal of heavy metal ions.

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Biomass-based carbon microspheres for removing heavy metals from the environment: a review

Cited by 20 publications

References 136 publications

Multifunctional MnO2 nanorods-modified wood sponge for water remediation: Applications for heavy metal sorption and oil/water separation

Multifunctional MnO2 nanorods-modified wood sponge for water remediation: Applications for heavy metal sorption and oil/water separation

Modified coconut shell biochars (MCSBCs): Fabrication and their adsorptions for Pb(II)

Synthesis of Cellulose–Poly(Acrylic Acid) Using Sugarcane Bagasse Extracted Cellulose Fibres for the Removal of Heavy Metal Ions

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