Photocatalytic properties and controlled morphologies of TiO2-modified hydroxyapatite synthesized by the urea-assisted hydrothermal method

Hydrothermally synthesis and characterization of HAp and Zr-doped HAp nanoparticles from bovine bone and zircon for photodynamic therapy

“…8 also show that the HAp and Zr-doped HAp nanoparticles produced in this study can be applied as photocatalyst. The ability of HAp-based nanoparticles as photocatalysts was also demonstrated by Chai et al [29] and Goto et al [38].…”

Liquid-phase synthesis of advanced ceramic sorbents with high functionalization and morphological control

“…6. 67) This tendency is the opposite to that observed for a basic dye. 68) The closer C 0 /C is to 1, the higher the amount of dye adsorbed on the sample; this ratio for TiO 2 -modified HAp with sponge-like morphology is higher than that for TiO 2 -modified needleshaped HAp.…”

“…However, this study indicated that the zeta potential of the TiO 2 -modified HAp samples was affected by the negatively charged TiO 2 content, and the zeta potential of the TiO 2 -modified HAp samples decreased with increasing TiO 2 content, which changed with urea concentration during the hydrothermal treatment. 67) Therefore, this result revealed that in addition to the crystal design of HAp serving as a catalyst support, the state and ratio of the supported oxides significantly contribute to the performance of modified HAp. 67) Subsequently, to weaken the effects of oxides that exhibit photocatalysis on the adsorption property of HAp, the solvothermal method using a wateralcohol system was chosen for the synthesis of TiO 2 -modified needle-shaped HAp.…”

“…67) Therefore, this result revealed that in addition to the crystal design of HAp serving as a catalyst support, the state and ratio of the supported oxides significantly contribute to the performance of modified HAp. 67) Subsequently, to weaken the effects of oxides that exhibit photocatalysis on the adsorption property of HAp, the solvothermal method using a wateralcohol system was chosen for the synthesis of TiO 2 -modified needle-shaped HAp. 69), 70) In addition, the adsorption properties of needle-shaped HAp with various aspect ratios were investigated using acid fuchsin (AF) and methylene blue (MB) as the acidic and basic dyes, respectively.…”

Interface engineering of Zn3V2O8 decorated hydroxyapatite nanocomposite for photocatalytic degradation of Congo red dye and anti-microbial applications

“…21 According to existing research, the band gap of hydroxyapatite (HAP) has been determined to be around 3.9 electron volts (eV), placing it inside the ultraviolet (UV) region of the electromagnetic spectrum. 22,23 The combination of Zn 3 V 2 O 8 / HAP modified the band gap, shifting it from the ultraviolet (UV) region to the visible region. 24 Furthermore, the development of heterojunctions is considered a highly successful way to modify the Zn 3 V 2 O 8 .…”