Hydroxyapatite doped CeO₂ nanoparticles: impact on biocompatibility and dye adsorption properties

Abstract

The toxicity imparted by the commercialized use of nanoparticles in environmental remediation has become a big concern.

Magnetic hollow carbon microspheres as a reusable adsorbent for rhodamine B removal

“…Generally, the impact of pH is very important because it has tremendous effects on the surface properties of adsorbates and adsorbents. 33,34 To investigate the effect of the initial pH on the removal of RB, a series of experiments with different initial solution pHs in range of 2-11 was carried out. As shown in Fig.…”

“…A higher concentration resulted in a higher driving force of the concentration gradient. 7,33 This driving force accelerated the diffusion of RB molecules from the solution into the adsorbent and decreased the resistance to the uptake of the RB. 9 As the initial concentration increased from 20 to 400 mg L À1 , the amounts of RB adsorbed on the adsorbent increased from 32.2 to 295.9 mg g À1 .…”

“…The adsorption kinetics of uptake of RB onto MHCMs was studied by tting the pseudo-rst-equation and the pseudo-second-order equation. The pseudo-rst-order rate model is described as: 33 ln(q e À q t ) ¼ ln q e À k 1 t…”

Co-immobilization of 1-vinyl-3-octadecylimidazolium cations and p-styrenesulphonate anions on silica and their anti-interference performance for the adsorption of naphthols

“…The equilibrium adsorption data were analyzed by the most common Langmuir (eqn (8)) and Freundlich (eqn (9)) models. 31,32 Q e ¼ bC e Q m /(1 + bC e ) (8)…”

Hydroxyapatite integrated with cellulose acetate/polyetherimide composite membrane for biomedical applications

“…However, it is difficult to separate nanoparticles from wastewater, creating environmental risks. [19][20][21] To overcome this major challenge, a strategy for clamping nanoparticles with bulk materials in order to create a brand new material termed nanocomposite has been developed. To interact with nanoparticles, some materials are employed, such as silica, carbonaceous compounds, and polymers.…”