Photodegradation of organic water pollutants under visible light using anatase F, N co-doped TiO/SiO nanocomposite: Semi-pilot plant experiment and density functional theory calculations.

Visible-light driven photocatalysts are of great importance in wastewater treatment. In this work, fluorine and nitrogen co-doped titanium dioxide/silica nanocomposite (F-N-TiO/SiO) was synthetized using a sol-gel approach. The as-developed nanocomposite was well characterized using different techniques.

Use of NHCl for activation of carbon xerogel to prepare a novel efficacious adsorbent for benzene removal from contaminated air streams in a fixed-bed column.

Background: Ammonium chloride as an explosive salt has proved to be a prominent activation agent for adsorbents and increase the specific surface area and volume of cavities. In this work, the ability of this substance was scrutinized for activation of carbon aerogel to prepare an efficient adsorbent for benzene removal from air streams.

Methods: A carbon xerogel was fabricated from Novallac polymer and activated by ammonium chloride.