A review on adsorbents for the remediation of wastewater: Antibacterial and adsorption study

Aryee, Aaron Albert; Mpatani, Farid Mzee; Han, Runping; Shi, Xinxin; Qu, Lingbo

doi:10.1016/j.jece.2021.106907

Cited by 27 publications

(10 citation statements)

References 126 publications

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“…), disrupting respiration, and preventing nutrients from entering the cell wall. DNA stability is affected, RNA replication is inhibited, and death is caused [32,71,72]. GO nanosheets can directly contact bacteria through their sharp edges or induce changes in membrane pressure to destroy cell structures and eventually die [28,73].…”

Section: Antibacterial Testmentioning

confidence: 99%

WITHDRAWN: Porous biomass gel beads SA/CS/GO construction and bifunction tuning on adsorption and antibacterial properties

Wang

Feng

2022

Preprint

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The organic dye molecules and pathogenic microorganisms exist widely in printing and dyeing wastewater which will bring severe harm to human beings and the water environment if they are not properly treated. A novel SA/CS/GO gel beads with both adsorption and antibacterial functions are synthesized in the special ways. NaHCO3 is selected as porogen to control the density of gel beads formed by the cross-linking of Ca2+. Ag+ is fixed on outside the beads to optimize the inactivation rate of typical strains. The morphology and composite of the beads are characterized through SEM and FT-IR spectrometer. The adsorption properties of the beads accord with the Langmuir isotherm and quasi-secondary model, that means, the adsorption is monolayer behavior and the reaction rate is controlled through the chemical reaction process. The theoretical adsorption liminal value of MB on the beads can reach 847.46 mg/g. In the range of pH value at 3–11, it also has good adsorption ability. After five rounds of adsorption-desorption experiments, the gel beads still remain favorable performance. At the same time, the sterilization rate of the beads is almost 100% for the selected typical strains, even after several adsorption-desorption cycles, it still has a good bactericidal function. So, this kind of new gel beads is easy to recycle, reusable, and has broad application foreground in the field of water purification, sterilization, and adsorption.

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Section: Antibacterial Testmentioning

confidence: 99%

WITHDRAWN: Porous biomass gel beads SA/CS/GO construction and bifunction tuning on adsorption and antibacterial properties

Wang

Feng

2022

Preprint

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“…Therefore, in addition to focusing on the removal of inorganic and organic chemical pollutants from wastewater, the presence of biological pollutants, such as bacteria, is more harmful to water quality and deserves more attention. [ 119 ] Besides, once the materials are contaminated with bacteria, bacteria will reproduce on the material and then reduce the hydrophobicity of the material. At present, a lot of work have improved the service life and circulation capacity of oil–water separation materials to reduce the cost of sewage purification.…”

Section: Superhydrophobic and Superoleophilic Materialsmentioning

confidence: 99%

Multifunctional materials with controllable superwettability for oil–water separation and removal of pollutants: Design, emerging applications, and challenges

Wang

2023

Carbon Neutralization

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The water pollution problem caused by large-scale industrial activity is becoming increasingly serious, which not only poses a major threat to the ecosystem and human health but also seriously impedes the green and sustainable development of modern society. It is urgent to efficiently purify stubborn wastewater containing oils and other pollutants to eliminate their harm to human and environment. Therefore, it is desirable to develop multifunctional materials that can simultaneously remove oil and various pollutants or microorganisms by filtration or absorption methods to meet the practical demand for highly effective purification of wastewater with complex components. This paper summarizes the latest research progress on the "oil

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“…Adsorption has recently come to the forefront of environmental remediation for simplicity, lack of chemical involvement, and low energy consumption [ 19 , 20 , 21 ]. And pyrolysis of biomass, such as agricultural and forestry waste, could be applied to the manufacture of adsorbents to effectively adsorb hazardous substances from wastewater [ 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

Characterization and Co-Adsorption Mechanism of Magnetic Clay-Biochar Composite for De-Risking Cd(II) and Methyl Orange Contaminated Water

Zhao

Shan

et al. 2023

IJMS

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The application of the adsorption method in sewage treatment has recently become a hot spot. A novel magnetic clay-biochar composite (BNT-MBC) was fabricated by co-pyrolysis of bentonite and biomass after being impregnated with Fe (NO3)3·9H2O. Its adsorption capacity for Cd(II) and methyl orange was approximately doubled, reaching a maximum of 26.22 and 63.34 mg/g, and could be easily separated from the solution by using external magnets with its saturation magnetization of 9.71 emu/g. A series of characterizations including surface morphology and pore structure, elemental analysis, functional group analysis and graphitization were carried out, showing that the specific surface area was increased 50 times by loading 20 wt.% bentonite, while its graphitization and oxygen-containing functional groups were also enhanced. The isotherm fitting indicated that Cd(II) was adsorbed in multiple layers, while methyl orange was in both monolayer and multilayer adsorptions. The kinetic fitting indicated that chemisorption was the rate-limiting step of both, and it was also a complex process controlled by two steps with the fitting of intra-particle diffusion. In the binary system of Cd(II) and methyl orange, the co-existing pollutants facilitated the adsorption of the original one, and there was no competition between adsorption sites of Cd(II) and methyl orange. BNT-MBC also exhibited good reusability and can be magnetically recovered for recycling. Thus, the magnetic clay-biochar composite BNT-MBC is a cost-effective and promising adsorbent for simultaneous removing Cd(II) and methyl orange from wastewater.

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A review on adsorbents for the remediation of wastewater: Antibacterial and adsorption study

Cited by 27 publications

References 126 publications

WITHDRAWN: Porous biomass gel beads SA/CS/GO construction and bifunction tuning on adsorption and antibacterial properties

WITHDRAWN: Porous biomass gel beads SA/CS/GO construction and bifunction tuning on adsorption and antibacterial properties

Multifunctional materials with controllable superwettability for oil–water separation and removal of pollutants: Design, emerging applications, and challenges

Characterization and Co-Adsorption Mechanism of Magnetic Clay-Biochar Composite for De-Risking Cd(II) and Methyl Orange Contaminated Water

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