Adsorption capacity

In this study, we undertook the pyrochar from lemongrass essential oil distillation residue (LR) with incorporated alkali activation, scrutinizing its structural attributes, and assessing its efficacy in MB adsorption from aqueous solutions.

12p vifilm 11-10-2024 1 0   Download

In this paper, we will review methods for modifying the oil adsorption properties of cellulose to enhance its adsorption capacity. We have reviewed 287 relevant worldwide documents in recent years and selected 142 documents for use in this study.

25p vibecca 01-10-2024 2 1   Download

The study aims to assess the diesel oil adsorption capacity of activated carbon derived from rambutan peel, a prevalent agricultural by-product in Vietnam. The adsorption process will be investigated using various adsorption isotherms (Langmuir, Freundlich, Temkin, Dubin-Radushkevich), adsorption kinetics (pseudo-first order and pseudo-second order).

18p vibecca 01-10-2024 2 1   Download

In this study, the objective was to employ experimental design in order to optimize the efficiency of diesel oil removal from water using activated carbon sourced from rambutan peel. A central composite design was utilized to investigate the impact of contact time, adsorbent dosage, initial oil concentration, and pH on both the removal efficiency and oil adsorption capacity across 30 different experimental designs.

12p vibecca 01-10-2024 0 0   Download

The results show that the chloroquine phosphate loading process by material consists of two stages: surface adsorption and intra-particle diffusion. The maximum chloroquine phosphate adsorption capacity of the material reached 236 (mg/g) according to the Langmuir model.

8p vikwong 29-09-2024 4 1   Download

Manufactured dyes are notably troublesome chemical toxins. The industrial wastes of these dyes are exceedingly noxious to aerobic and aquatic life and can cause compounds that show carcinogenic, mutagenic, and neurotoxic effects. In this study, cadmium imidazolate frameworks were synthesized by a solvothermal method from cadmium acetate and 2-methylimidazole in an ethanol/methanol mixture.

7p vikwong 29-09-2024 3 1   Download

The results showed that the pseudo-second-kinetic model better described the adsorption kinetics of tartrazine on MoS2 and film diffusion was the rate-limiting step. In addition, the adsorption capacity of MoS2 was also performed with various organic dyes such as nile blue, janus green B, and congo red.

7p vikwong 29-09-2024 4 1   Download

For the first time, the expansion grade of graphite was studied through the effect of the flake size. The result shown the larger flake size exhibits a higher expansion grade. In addition, the more expanded material, the higher specific surface area can be obtained. The synthesized expanded graphites were used for the adsorption of methylene blue.

5p vikwong 29-09-2024 6 1   Download

The higher catalytic performance of CuMnOx than MnO2, CuO because of its higher specific surface area and its lower reduction temperature. The results also implied that the interaction between Cu and Mn could improve the reduction capacity of CuMnOx catalyst. In summary, the CuMnOx catalyst is a promising catalyst for toluene treatment.

7p vikwong 29-09-2024 4 1   Download

In this study, a layered O3-type Ni-rich cathode material for sodium-ion batteries was synthesized through co-precipitation followed by a solid-state reaction at 650 oC in dry air. The electrochemical properties of the Ni-rich material were evaluated. Charge/discharge performance demonstrated that the material delivered higher capacity compared to other layered oxides.

6p vikwong 29-09-2024 2 1   Download

The nanoparticle crystals of perovskite LaFe1-xMnxO3 were prepared by the PVA (polyvinyl alcohol) gel combustion method to determine the adsorption capacity of As(V), Pb2+ from solution was investigated.

6p vikwong 29-09-2024 2 1   Download

The materials were then characterized by SEM, BET, AFM and XRD. The produced material was used to remove methylene blue (MB) from aqueous solution by batch adsorption. Results showed that the bentonite nanoplatelets gave high adsorption ability with Langmuir maximum adsorption capacity of 312.50 mg/g, which could be a good adsorbent for removing dyes and other toxic organics in wastewater.

5p vikwong 29-09-2024 2 1   Download

The graphene-based sponge showed remarkable adsorption performance toward oils and organic solvents with the adsorption capacity ranging from 40 to 70 folds of sponge’s weight. The sponge also exhibited high recyclability, which is considered as a promising material for the practical application.

5p vikwong 29-09-2024 2 1   Download

Phase change materials have excellent thermal energy storage capacity, making them an appealing option for energy management applications. Stabilizing the form of phase change materials enhances their practical effectiveness. This research focuses on sustaining the shape of low molecular weight PEG phase change materials in wood structures made from natural balsa wood.

6p vikwong 29-09-2024 1 1   Download

Waste from Jackfruit has little economic value and often causes serious environmental problems. The conversion of jackfruit waste will help reduce waste treatment costs, provide a potential source of raw materials for the activated carbon (AC) and increase economic value. In this study, the ACs from the Jackfruit shell and pulp were synthesized by microwave assistance for removing organic dyes.

13p vidoctorstrange 06-05-2023 10 2   Download

The main aim of this investigation was to develop a low-cost solution to remove trace metals from the aqueous phase using biochar. This study investigated (i) the effect of giant reed-based biochar produced at varying temperatures in the treatment of aqueous solutions polluted with lead; and (ii) how the production of biochar at different temperatures affected its adsorption capacity for lead from the aqueous phase.

116p runthenight04 02-02-2023 13 4   Download

The research goals of the thesis: Preparation and characterization of activated carbon products denaturated by surface oxidation technics. Determination of cation exchange capacity of the materials. Investigation of Mn and Fe linking on surface of prepared materials to form a new adsorption material for effective removing hazard anions in water environment.

26p extraenglish 24-05-2021 27 2   Download

Synthesization and structural characterization of nano La2O3, nano CeO2, nano La2O3- CeO2 on laterite by sol - gel combustion method using gelatin precursor; investigation the adsorption and desorption capacity of arsenic, phosphate on La2O3 nanomaterials, CeO2 nanomaterial, mixed oxides La2O3-CeO2 nanomaterial and La2O3-CeO2 nanomaterials on laterite.

28p capheviahe26 25-01-2021 20 4   Download

In this work, chitosan with an amorphous structure and high surface area (increased 30 times higher than that of initial chitosan) was obtained from the decrystallization of chitosan using a reprecipitation method of chitosan from solution. The chitosan was characterized using X-ray diffraction, Scanning Electron Microscopy (SEM) and Brunauer-Emmet-Teller (BET).

6p tamynhan9 02-12-2020 9 2   Download

This study evaluated the adsorption capacity of hydrotalcite material (HT) for the removal of Mn2+in an aqueous solution. Factors affecting the adsorption capacity of HT for the removal of Mn2 ions from aqueous solutions, such as initial pH, contact time and initial Mn2 concentration, were investigated using batch experiments.

8p tamynhan9 02-12-2020 13 2   Download