Separation of manganese from water using hybrid nanocomposite to control water pollution: kinetic and equilibrium modelling

Rajamohan, N.; Kumar, P. Senthil; Qasmi, Fatma Al

doi:10.1080/03067319.2020.1836175

Cited by 10 publications

(4 citation statements)

References 49 publications

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“…Langmuir’s separation factor (R L ) expresses the favorable or unfavorable nature of the process: favorable and unfavorable adsorption are assumed when R L is between 0 and 1, and larger than 1, respectively. In addition, when R L is equal to 0 or 1, irreversible and linear adsorption, respectively, occur [ 86 ]. The adjustment to the Freundlich model shows multilayer adsorption due to the heterogeneous surface of the adsorbent, where Freundlich’s constant (K F ) indicates the magnitude of the equilibrium adsorption rate.…”

Section: Resultsmentioning

confidence: 99%

High-Efficiency Removal of Lead and Nickel Using Four Inert Dry Biomasses: Insights into the Adsorption Mechanisms

2023

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In this study, inert dry bioadsorbents prepared from corn cob residues (CCR), cocoa husk (CH), plantain peels (PP), and cassava peels (CP) were used as adsorbents of heavy metal ions (Pb2+ and Ni2+) in single-batch adsorption experiments from synthetic aqueous solutions. The physicochemical properties of the bioadsorbents and the adsorption mechanisms were evaluated using different experimental techniques. The results showed that electrostatic attraction, cation exchange, and surface complexation were the main mechanisms involved in the adsorption of metals onto the evaluated bioadsorbents. The percentage removal of Pb2+ and Ni2+ increased with higher adsorbent dosage, with Pb2+ exhibiting greater biosorption capacity than Ni2+. The bioadsorbents showed promising potential for adsorbing Pb2+ with monolayer adsorption capacities of 699.267, 568.794, 101.535, and 116.820 mg/g when using PP, CCR, CH, and CP, respectively. For Ni2+, Langmuir’s parameter had values of 10.402, 26.984, 18.883, and 21.615, respectively, for PP, CCR, CH, and CP. Kinetics data fitted by the pseudo-second-order model revealed that the adsorption rate follows this order: CH > CP > CCR > PP for Pb2+, and CH > CCR > PP > CP for Ni2+. The adsorption mechanism was found to be controlled by ion exchange and precipitation. These findings suggest that the dry raw biomasses of corn cob residues, cocoa husk, cassava, and plantain peels can effectively remove lead and nickel, but further research is needed to explore their application in industrial-scale and continuous systems.

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Section: Resultsmentioning

confidence: 99%

High-Efficiency Removal of Lead and Nickel Using Four Inert Dry Biomasses: Insights into the Adsorption Mechanisms

2023

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“…Table 4 shows that the values of R L (0.200–0.714) were between zero and 1, which demonstrates favorable sorption. 70 In addition, 1/ n describes the adsorption intensity under the Freundlich model, and specifies the type of adsorption as favorable (0 < 1/ n < 1), unfavorable (1/ n > 1) and irreversible (1/ n = 1). 71 For the current context, 1/ n is between 0 and 1, which is favorable.…”

Section: Resultsmentioning

confidence: 99%

Insights into thep-nitrophenol adsorption by amidoxime-modified poly(acrylonitrile-co-acrylic acid): characterization, kinetics, isotherm, thermodynamic, regeneration and mechanism study

et al. 2021

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“…growing approach for manufacturing MXene materials has substantially expanded the variation of MXene family. [51][52][53][54][55]…”

Section: Molten Salt Stripping Synthesismentioning

confidence: 99%

Several Fundamental Aspects of MXene: Synthesis and Their Applications

2023

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MXene, a new member of the 2D material family, has stimulated research and been used in a variety of fields since its inception. It is a two dimensional transition metal‐based layered material made of carbides and nitrides. From the beginning of its discovery, the specific etching of the MAX phase and various predecessors have been employed to generate distinct compositions, with several compositions being theoretically envisaged. Due to their unique features, the MXene family is a prospective contender for a variety of applications, including, interference shielding by electromagnet, energy storage, electrocatalysis, water purification, environmental remediation, medicine and so on. The pure MXene as well as MXene based materials can be easily prepared from their MAX phases and easy implementation in broad range of areas. The review article includes the properties, MAX phase synthesis, selection of precursor materials, as well as commonly used preparation methods of MXene. A few applications of MXene based materials in variety of fields have been covered in this review. Additionally, the limitations and future prospects of MXene and MXene‐based compounds have been discussed.

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Separation of manganese from water using hybrid nanocomposite to control water pollution: kinetic and equilibrium modelling

Cited by 10 publications

References 49 publications

High-Efficiency Removal of Lead and Nickel Using Four Inert Dry Biomasses: Insights into the Adsorption Mechanisms

High-Efficiency Removal of Lead and Nickel Using Four Inert Dry Biomasses: Insights into the Adsorption Mechanisms

Insights into thep-nitrophenol adsorption by amidoxime-modified poly(acrylonitrile-co-acrylic acid): characterization, kinetics, isotherm, thermodynamic, regeneration and mechanism study

Several Fundamental Aspects of MXene: Synthesis and Their Applications

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