phenol

Removal of Phenol from Water Using an Activated Carbon Prepared from Juniperus Thurifera Tree

The present paper aims to study the feasibility of using an activated carbon prepared by Juniperus thurifera tree as an adsorbent to remove phenol from water by adsorption. The impact of initial phenol concentration, contact time, pH, and adsorbent mass on phenol adsorp-tion capacity was investigated. It was reported that the highest adsorption capacity is achieved at pH=3.4, phenol concentration of 50 mg/L, adsorbent mass of 100 mg, and time 24 h. Freundlich, Langmuir, and Temkin isotherm equations were used to best fit our experimental data.

Titanium Dioxide/Copper/Carbon Composites for the Photocatalytic Degradation of Phenol

The incorporation of titanium dioxide and copper onto activated carbon for phenol removal was evaluated. Based on catalyst contents and phenol degradation, four composites were selected and characterized. The results showed that both adsorption and photocatalytic activities were influenced by the presence and arrangement of the catalysts.

Mechanism of Catalytic Alkylation of 2,6-di-tert-Butylphenol by Methyl Acrylate

The determining factor of the reaction of 2,6-di-tert-butylphenol with alkaline metal hydroxides is temperature, depending on which two types of potassium or sodium 2,6-di-tert-butyl phenoxides are formed with different catalytic activity in the alkylation of 2,6-di-tert-butylphenol with methyl acrylate. More active forms of 2,6-But2C6H3OK or 2,6-But2C6H3ONa are synthesized at temperatures higher than 433 K and represent predominantly monomers of 2,6-di-tert-butyl phenoxides producing dimers on cooling.