[Adsorption and Photocatalytic Removal of Chromium on High-index TiO Facet].

Chromium (Cr) contamination caused by industrial manufacturing poses a severe challenge in the environment. Titanium dioxide (TiO) has potential application in Cr removal due to its adsorption and photocatalytic performance. High-index TiO with exposed {201} facet was synthesized using the solvothermal method and characterized by SEM, TEM, XRD, and XPS.

Photocatalytic Degradation of Oxytetracycline by Ternary Mixed Catalyst and Toxicity Assessment Using Boar Sperm.

Response surface methodology was adopted to obtain ternary mixed catalysts of TiO2-loaded ZSM-5 zeolite and graphene. Oxytetracycline was used as challenged toxicant to evaluate the photocatalytic degradation efficiency of the composites. The optimal weight ratio of graphene, TiO2, and ZSM-5 was 1:8:1.

[Determination of mercury in battery by microwave digestion cold atomic absorption spectrometry].

In this paper, a method of microwave digestion followed by cold atomic absorption spectrometry (CAAS) for the determination of mercury in battery was developed. Microwave digestion conditions and operational conditions of CAAS were optimized. The digestive solution was a mixture of hydrochloric acid-sulfuric acid (4:1, volume ratio) and the digestive time was 3 min at a microwave power of 1.