Adsorption effects and mechanisms of phosphorus by nanosized laponite

Jia, Chonghao; Chi, Jialin; Zhang, Wenjun

doi:10.1016/j.chemosphere.2023.138684

Cited by 10 publications

(4 citation statements)

References 55 publications

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“…This ability is related to its zeta potential. 26 As shown in Fig. 4(b), with the increase of Ca(OH) 2 loading amount, the pH pzc increases, which may be attributed to the increase of positively charged Ca 2+ and Ca(OH) + on the surface due to the increase of Ca(OH) 2 loading.…”

Section: Resultsmentioning

confidence: 79%

Composites hybridized with Ca(OH)₂ and LaMnO₃ synergistically improve phosphate adsorption properties

Feng,

Li,

Guo

et al. 2024

New J. Chem.

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Section: Resultsmentioning

confidence: 79%

Composites hybridized with Ca(OH)₂ and LaMnO₃ synergistically improve phosphate adsorption properties

Feng,

Li,

Guo

et al. 2024

New J. Chem.

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“…28,29 However, the aggregation of adjacent nanosheets can lead to incomplete release of adsorption sites, thereby reducing its adsorption performance. 30 Therefore, in order to address this issue, in previous research, natural diatomaceous earth has been chosen as a three-dimensional template and silicon source for in situ synthesis of Laponite @diatomite, and the synthesized material has a very high capacity for cationic pollutant adsorption. 31,32 However, Laponite@diatomite has a low anionic pollutant adsorption capacity.…”

Section: Introductionmentioning

confidence: 99%

“…However, limited by its purification process, the adsorption capacity of natural clay is usually low, and it is difficult to adsorb anionic organic pollutants. , Laponite, a synthetic clay composed of layered nanosheets mainly composed of lithium magnesium silicate, has been proven to have good cationic pollutant adsorption properties . For example, the design of Laponite hydrogels has shown high adsorption capacity for methylene blue. , However, the aggregation of adjacent nanosheets can lead to incomplete release of adsorption sites, thereby reducing its adsorption performance . Therefore, in order to address this issue, in previous research, natural diatomaceous earth has been chosen as a three-dimensional template and silicon source for in situ synthesis of Laponite @diatomite, and the synthesized material has a very high capacity for cationic pollutant adsorption. , …”

Section: Introductionmentioning

confidence: 99%

Cetyltrimethylammonium Bromide-Modified Laponite@Diatomite Composites for Enhanced Adsorption Performance of Organic Pollutants

Dai,

Liu,

Yang

et al. 2024

Langmuir

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This work aims to enhance the adsorption performance of Laponite @diatomite for organic pollutants by modifying it with cetyltrimethylammonium bromide (CTAB). The microstructure and morphology of the CTAB-modified Laponite @ diatomite material were characterized using SEM, XRD, FTIR, BET, and TG. Furthermore, the influences of key parameters, containing pH, adsorbent dosage, reaction time, and reaction temperature, on the adsorption process were investigated. The kinetics, thermodynamics, and isotherm models of the adsorption process were analyzed. Finally, potential adsorption mechanisms were given based on the characterization. The research findings indicate that CTAB-La@D exhibits good adsorption performance toward Congo red (CR) over a broad pH range. The maximum adsorption capacity of CR was 451.1 mg/g under the optimum conditions (dosage = 10 mg, contact time = 240 min, initial CR concentration = 100 mg/L, temperature = 25 °C, and pH = 7). The adsorption process conformed to the pseudo-second-order kinetic model, and the adsorption isotherms indicated that the adsorption process of CR was more in line with the Langmuir model, and it was physical adsorption. Thermodynamic analysis illustrates that the adsorption process is exothermic and spontaneous. Additionally, the mechanisms of electrostatic adsorption and hydrophobic effect adsorption of CR were investigated through XPS and FTIR analysis. This work provides an effective pathway for designing high-performance adsorbents for the removal of organic dye, and the synthesized materials hold great capability for practical utilization in the treatment of wastewater.

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“…Several adsorbent materials have been explored for phosphate removal from water, including biochar [18], laponite [19], and biopolymers [20,21]. Despite the progress made, many prepared adsorbents exhibit drawbacks such as high cost, non−recyclability, poor adsorption capacity, and low adsorption rate, thereby limiting their practical use [22].…”

Section: Introductionmentioning

confidence: 99%

Zirconium Component Modified Porous Nanowood for Efficient Removal of Phosphate from Aqueous Solutions

et al. 2023

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Rapid urban industrialization and agricultural production have led to the discharge of excessive phosphate into aquatic systems, resulting in a rise in water pollution. Therefore, there is an urgent need to explore efficient phosphate removal technologies. Herein, a novel phosphate capture nanocomposite (PEI−PW@Zr) with mild preparation conditions, environmental friendliness, recyclability, and high efficiency has been developed by modifying aminated nanowood with a zirconium (Zr) component. The Zr component imparts the ability to capture phosphate to the PEI−PW@Zr, while the porous structure provides a mass transfer channel, resulting in excellent adsorption efficiency. Additionally, the nanocomposite maintains more than 80% phosphate adsorption efficiency even after ten adsorption–desorption cycles, indicating its recyclability and potential for repeated use. This compressible nanocomposite provides novel insights into the design of efficient phosphate removal cleaners and offers potential approaches for the functionalization of biomass−based composites.

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Adsorption effects and mechanisms of phosphorus by nanosized laponite

Cited by 10 publications

References 55 publications

Composites hybridized with Ca(OH)₂ and LaMnO₃ synergistically improve phosphate adsorption properties

Composites hybridized with Ca(OH)₂ and LaMnO₃ synergistically improve phosphate adsorption properties

Cetyltrimethylammonium Bromide-Modified Laponite@Diatomite Composites for Enhanced Adsorption Performance of Organic Pollutants

Zirconium Component Modified Porous Nanowood for Efficient Removal of Phosphate from Aqueous Solutions

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Adsorption effects and mechanisms of phosphorus by nanosized laponite

Cited by 10 publications

References 55 publications

Composites hybridized with Ca(OH)2 and LaMnO3 synergistically improve phosphate adsorption properties

Composites hybridized with Ca(OH)2 and LaMnO3 synergistically improve phosphate adsorption properties

Cetyltrimethylammonium Bromide-Modified Laponite@Diatomite Composites for Enhanced Adsorption Performance of Organic Pollutants

Zirconium Component Modified Porous Nanowood for Efficient Removal of Phosphate from Aqueous Solutions

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Composites hybridized with Ca(OH)₂ and LaMnO₃ synergistically improve phosphate adsorption properties

Composites hybridized with Ca(OH)₂ and LaMnO₃ synergistically improve phosphate adsorption properties