Green synthesis of bio-functionalized nano-particles for the application of copper removal – characterization and modeling studies

Pandian, A. Muthu Kumara; Gopalakrishnan, B.; Rajamohan, N.; Karthikeyan, C.

doi:10.1016/j.envres.2021.111140

Cited by 18 publications

(3 citation statements)

References 41 publications

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“…(6) Eco-friendly synthesis: the synthesis of multi-metallic nanomaterials using MOFs often involves mild and environmentally friendly conditions. [100][101][102] This eco-friendly approach aligns with sustainable chemistry principles, making MOFs an attractive choice for researchers aiming to develop green and efficient synthetic methodologies.…”

Section: Reviewmentioning

confidence: 98%

Deriving multi-metal nanomaterials on metal–organic framework platforms for oxygen electrocatalysis

Cui,

Xu,

Ding

et al. 2024

Energy Environ. Sci.

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Section: Reviewmentioning

confidence: 98%

Deriving multi-metal nanomaterials on metal–organic framework platforms for oxygen electrocatalysis

Cui,

Xu,

Ding

et al. 2024

Energy Environ. Sci.

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“…The same procedure of Cu(II) adsorption by the activated carbon of Australian pine cones (Muslim, 2017) was used for the adsorption tests. The initial pH was adjusted with HCl or NaOH (Pandian et al, 2021) (99.8%, Gatt-Koller) by dropping it at a concentration of 0.01-1 M, and measured using a portable PHYWE pH Meter (Co-bra4, Germany). The Cu(II) adsorption isotherm, kinetic and thermodynamic studies were conducted using the experimental data and previous procedure (Muslim et al, 2022), and the values of the parameters were obtained using related equations.…”

Section: Experiments Of Cu(ii) Adsorptionmentioning

confidence: 99%

Adsorption of Cu(II) from Aqueous Solution on Sonicated Activated Carbon Prepared from Arenga Pinnata Merr Fruit Shell Waste: Isotherm, Kinetic and Thermodynamic Studies

Said,

Muslim,

Yahya

et al. 2023

EREM

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Adsorption of Cu(II) from aqueous solution on the activated carbon (AC) prepared from Arenga pinnata Merr fruit shell (APMFS) waste with the assistance of ultrasound was evaluated by conducting batch mode experiments. As a result, KOH activation using 40 kHz of ultrasound restructured active binding sites and produced more pores on the APMFS-AC according to FT-IR and SEM analyses, respectively. Increasing the sonication time from 45 min to 135 min increased the adsorption capacity from 6.535 mg/g to 7.042 mg/g, respectively, at the initial Cu(II) concentration of 257.213 mg/L, 27°C and pH 5. With an increment of the adsorption temperature to 45°C, it increased the adsorption capacity up to 11.765 mg/g. The investigation on the independent variables showed the optimum conditions of adsorption which were 257.213 mg/L of the initial Cu(II) concentration, 60 min of contact time, pH 5 and 45°C using 135 min of sonicated APMFS-AC. The Cu(II) adsorption isotherm was fitted with the Langmuir model at the optimum condition. The Langmuir mono-layer adsorption capacity obtained was 11.765 mg/g with the BET saturation capacity, and the total pore volume values were 13.029 mg/g and 3.987 L/mg, respectively. The Cu(II) adsorption followed the pseudo second-order kinetics model with the adsorption rate 0.473 g/mg.min. Thermodynamic parameters of enthalpy change (∆H0, 27.035 kJ/mol), Gibbs free energy (∆G0, 7.292 kJ/mol), entropy change (∆S0, 0.062 kJ/mol.K), and activation energy (E, 22.637 kJ/mol) were determined. These results confirmed that endothermic, spontaneous and chemical adsorption took place.

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“…Over the past few decades, the presence of highly toxic heavy metal pollutants in aquatic environments has caused global environmental concerns 1, 2. Unlike other pollutants, heavy metals do not degrade and can accumulate in the food chain, thereby posing a significant threat to human health and the environment 3, 4.…”

Section: Introductionmentioning

confidence: 99%

Removal of Cu Ions in Wastewater through a Combined Foam Separation‐Cell Adsorption Approach

Hou

Meng

et al. 2022

Chem Eng & Technol

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The removal of heavy metal pollutants from industrial wastewater is important to ensure the safety of the environment and humans. In this study, rhamnolipids from Pseudomonas aeruginosa were used to treat synthetic wastewater containing Cu ions (100 mg L -1 ) by foam separation. A high removal efficiency of 99.52 % was achieved when the somatic cells of inactivated P. aeruginosa were used as biosorbents. The analysis of the adsorption kinetics showed that dynamic biosorption followed the Langmuir isotherm model and that the bacterial cells had a strong adsorption effect on Cu ions. The novel technology based on the combination of foam separation and biosorption serves as an effective approach for the removal of Cu ions from industrial wastewater.

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Green synthesis of bio-functionalized nano-particles for the application of copper removal – characterization and modeling studies

Cited by 18 publications

References 41 publications

Deriving multi-metal nanomaterials on metal–organic framework platforms for oxygen electrocatalysis

Deriving multi-metal nanomaterials on metal–organic framework platforms for oxygen electrocatalysis

Adsorption of Cu(II) from Aqueous Solution on Sonicated Activated Carbon Prepared from Arenga Pinnata Merr Fruit Shell Waste: Isotherm, Kinetic and Thermodynamic Studies

Removal of Cu Ions in Wastewater through a Combined Foam Separation‐Cell Adsorption Approach

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