A novel porous egg-white (EW)/titania composite material was prepared via a facile nonaqueous precipitation method with EW as the porous skeleton. In a typical process, tetrabutyl titanate, a titanium precursor, was dissolved in ethanol to undergo a non-hydrolytic reaction with the aid of anhydrous formic acid under ultrasonication and form a porous structure with EW. The composite material was characterized by BET, XRD, FTIR spectroscopy, TEM, FE-SEM and photocatalytic degradation test. The results show that formic acid changes the characteristic structure of tetrabutyl titanate, increases the polarity of its C–O and Ti–O bonds, and promotes the non-hydrolytic de-etherization poly-condensation reaction. After ultrasonic treatment, the reaction product was rearranged to form anatase titania on EW to form a porous structure. The porous composite material had a mean pore size of 15.8 nm, BET surface area of 325.5 m² g⁻¹ and exhibited an excellent photocatalytic activity. The degradation rate of methyl orange using the EW/titania composite material reached 99.9% in 50 minutes, exhibiting an attractive prospect in wastewater treatment.

A novel reddish-orange emitting phosphor Eu-activated KLaSiO ₄ was synthesized by the conventional solid-state reaction at 1200 °C. The luminescence properties of KLaSiO ₄ :Eu phosphor were investigated, and the critical concentration of the activator ion (Eu ³⁺ ) was established as 0.02 mol per formula unit. Chromaticity coordinates of a typical KLa _0.98 SiO ₄ :0.02Eu phosphor were x = 0.614 and y = 0.385. The phosphor exhibited reddish-orange luminescence with dominating emission at 612 nm, corresponding to ⁵ D ₀ → ⁷ F ₂ of Eu ³⁺ . Furthermore, the phosphor was characterized by excellent thermal stability, implying its potential use in white light emitting diodes.