Preparation of N-functionalized TiO₂ particles using one-step sol-gel method and their photocatalytic activity

Jang, Inseok; Leong, Hui Jun; Noh, Hongche; Rang, Taeho; Kong, Sungho; Oh, Seong-Geun

doi:10.1016/j.jiec.2016.04.002

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Preparation of N-functionalized TiO₂ particles using one-step sol-gel method and their photocatalytic activity

Jang, Inseok;
Leong, Hui Jun;
Noh, Hongche;
Rang, Taeho;
Kong, Sungho;
... Oh, Seong-Geun

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15

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16

초록

Nitrogen functionalized TiO2 (N-TiO2) particles having an excellent dispersibility were prepared by sol-gel method. Generally, N-TiO2 particles have been made at the harsh preparation conditions including either high temperature or high pressure with nitrogen sources. However, in this research, N-TiO2 particles were prepared through facile sol-gel reaction with titanium(IV) (triethanolaminato)isopropoxide (ITEAIP) precursor at mild conditions. The diameter of titania spheres could be tunable from 250 to 2200 nm by varying TTEAIP concentrations. Photocatalytic performances of N-TiO2 were examined through the degradation of methylene blue. N-TiO2 particles exhibited 3-10 times better performance of methylene blue photodegradation than that of commercial P25.

키워드

Inorganic compounds; Oxides; Sol-gel growth; Surface properties; Photoelectron spectroscopy; VISIBLE-LIGHT PHOTOCATALYSIS; DOPED TIO2; TITANIUM-DIOXIDE; METHYLENE-BLUE; SURFACE; DEGRADATION; WATER; NANOPARTICLES; NANOCRYSTALS; KINETICS

제목: Preparation of N-functionalized TiO₂ particles using one-step sol-gel method and their photocatalytic activity

저자: Jang, Inseok; Leong, Hui Jun; Noh, Hongche; Rang, Taeho; Kong, Sungho; Oh, Seong-Geun

DOI: 10.1016/j.jiec.2016.04.002

발행일: 2016-05

유형: Article

저널명: Journal of Industrial and Engineering Chemistry

권: 37

페이지: 380 ~ 389