Adsorption and Photocatalytic Study of Phenol Using Composites of Activated Carbon Prepared from Onion Leaves (Allium fistulosum) and Metallic Oxides (ZnO and TiO2)
- Resource Type
- Authors
- Liliana Giraldo; Jenny Paola Rodriguez-Estupiñan; Diego Felipe Hernández-Barreto; Rocío Sierra Ramírez; Juan Carlos Moreno-Piraján
- Source
- Catalysts; Volume 10; Issue 5; Pages: 574
Catalysts, Vol 10, Iss 574, p 574 (2020)
- Subject
- Materials science
chemistry.chemical_element
02 engineering and technology
Zinc
010402 general chemistry
lcsh:Chemical technology
01 natural sciences
composites
Catalysis
lcsh:Chemistry
chemistry.chemical_compound
food
Adsorption
medicine
Phenol
activated carbon
lcsh:TP1-1185
Physical and Theoretical Chemistry
Composite material
Phosphoric acid
graphene
adsorption
photocatalysis
021001 nanoscience & nanotechnology
food.food
0104 chemical sciences
chemistry
lcsh:QD1-999
Allium fistulosum
Titanium dioxide
Photocatalysis
0210 nano-technology
Activated carbon
medicine.drug
- Language
- English
- ISSN
- 2073-4344
The aim of this study was to evaluate and compare the adsorption and photocatalytic activity of activated carbon-based photocatalysts. Titanium dioxide (TiO2) and zinc oxide (ZnO) were chosen as semiconductors to prepare composites with activated carbon by the wet impregnation method. Activated carbon was prepared using as starting material onion leaves (Allium fistulosum) and as activating agent phosphoric acid (H3PO4). Photooxidation and batch adsorption of phenol was studied to compare the efficiency of the materials prepared. The results showed that the composite AC–TiO2 has a greater photocatalytic activity and a better adsorption capacity compared to AC–ZnO composite.