Aquatic pollution, which includes organic debris and heavy metals, is a severe issue for living things. Copper pollution is hazardous to people, and there is a need to develop effective methods for eliminating it from the environment. To address this issue, a novel adsorbent composed of frankincense-modified multi-walled carbon nanotubes (Fr-MMWCNTs) and Fe3O4 [Fr-MWCNT-Fe3O4] was created and subjected to characterization. Batch adsorption tests showed that Fr-MWCNT-Fe3O4 had a maximum adsorption capacity of 250 mg/g at 308 K and could efficiently remove Cu2+ ions over a pH range of 6 to 8. The adsorption process followed the pseudo-second-order and Langmuir models, and its thermodynamics were identified as endothermic. Functional groups on the surface of modified MWCNTs improved their adsorption capacity, and a rise in temperature increased the adsorption efficiency. These results highlight the Fr-MWCNT-Fe3O4 composites’ potential as an efficient adsorbent for removing Cu2+ ions from untreated natural water sources.
The focus of this study is to observe the effect of temperature on the size and mo rphology of nano -nickel particles. Nano-n ickel part icles have been prepared by a simp le poly mer-surfactant interaction of a cationic poly mer poly v inyl pyrrolidone (PVP) with an anionic surfactant, sodium-dodecyl-sulphate SDS at d ifferent temperatures i.e. 60℃, 80℃ and 100℃. Nano-sized n ickel particles were synthesized by using nickel chlo ride as the precursor, hydrazine as the reducing agent in the presence of SDS and PVP in a strong basic mediu m (pH-10.2). Our research shows that the rate of reduction increases as the reaction temperature was increased from 60℃ to 100℃. Finer part icles of diameters less than 10n m were formed as the temperature was increased fro m 60 to 100℃. The morphology of the synthesized nano-nickel particles also varied as the temperature was increased. The concentration of nickel ch loride and SDS/PVP was kept cons tant in all these experiments. The nano-sized nickel particles synthesized were characterized by using SEM and HRTEM.
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