Premium
Mesoporous Nitrogen‐Modified Titania with Enhanced Dye Adsorption Capacity and Visible Light Photocatalytic Activity
Author(s) -
Nursam Natalita M.,
Tan Jeannie Z. Y.,
Wang Xingdong,
Li Wei,
Xia Fang,
Caruso Rachel A.
Publication year - 2016
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201601234
Subject(s) - photocatalysis , diethanolamine , calcination , methylene blue , visible spectrum , photodegradation , mesoporous material , anatase , adsorption , materials science , specific surface area , chemical engineering , titanium , inorganic chemistry , nuclear chemistry , chemistry , catalysis , organic chemistry , optoelectronics , engineering , metallurgy
Mesoporous nitrogen‐modified anatase titania (N‐TiO 2 ), showing high dye adsorption capacity and photocatalytic activity for photodegradation of methylene blue under visible light, was prepared by a template‐free, sol‐gel synthesis route in the presence of diethanolamine followed by a single step low temperature calcination treatment. The effect of calcination conditions and the role of the titania precursor type were investigated, highlighting their profound influence upon the adsorption and visible light activity. The crystallization of titania in the presence of N was also studied using in situ synchrotron X‐ray powder diffraction. The N‐TiO 2 prepared from titanium (IV) butoxide and diethanolamine calcined at 350 °C for 10 h exhibited a high methylene blue adsorption capacity and high photocatalytic activity under visible light. The prominent photocatalytic performance was attributed to the synergetic effect from the abundant N content, high specific surface area and enhanced surface acidity. These results suggest that this material has potential as an adsorbent‐photocatalyst hybrid.