Performance of Surfactant Assisted Synthesis of Fe/TiO₂ on the Photodegradation of Diisopropanolamine

Abstract

Titanium dioxide, TiO 2 nanoparticles were synthesized via microemulsion method employing Triton X-100 as the surfactant. Heat treatment was used to remove residual organic entities and also to produce anatase TiO 2 . Iron (Fe) was incorporated by wet impregnation into the TiO 2 nanoparticles in order to shift the active region of the photocatalyst from UV into visible region. The Fe/TiO 2 photocatalyst was characterized and their performance on the degradation of aqueous diisopropanolamine solution was compared with the commercial TiO 2 . The optimum conditions for the photodegradation of aqueous diisopropanolamine were found to be at 0.2 wt% of Fe. The present synthesized Fe/TiO 2 photocatalyst showed an improved performance over the commercial TiO 2 on the COD removal.

Influences of Doping on Photocatalytic Properties of TiO2 Photocatalyst

“…Fe-doped TiO 2 shows superior activity due to its unique half-filled electronic configuration and shallow trapping compared to other metal dopants with closed shell electronic configuration, which can be more effective to influence the photoactivity [168][169][170][171][172][173][174][175][176]. Theoretical and experimental studies show that Fe doping can effectively reduce the trapping density and charge recombination, resulting in drastically improved adsorption.…”

Photocatalytic degradation of methyl blue by silver ion-doped titania: Identification of degradation products by GC-MS and IC analysis

“…Some researchers have added a small amount of transition metals or their ions to TiO 2 via liquid impregnation, hydrothermal or photo deposition methods. [24,25] Transition metal doping or modification at low molar ratio improves the photocatalytic efficiency of TiO 2 by trapping the conduction band electrons and reducing the electron hole recombination. It also improves the settling property of the photocatalyst and shifts the optical absorption to the visible range.…”

“…It also improves the settling property of the photocatalyst and shifts the optical absorption to the visible range. [24] The percentage of silver ion doping plays an important role in the degradation efficiency of the photocatalyst.…”

CeO2-TiO2 Photocatalyst: Ionic Liquid-Mediated Synthesis, Characterization, and Performance for Diisopropanolamine Visible Light Degradation

“…Current research focuses on TiO2 which is used to photodegrade DIPA via advanced oxidation process (AOP) [3]. Bimetallic catalyst was used as well to study the alkanolamine degradation.…”