Strategies developed on the modification of titania for visible light response with enhanced interfacial charge transfer process: an overview

AbstractThe modification of titania by metal / non metal ion doping, coupling with narrow band gap sensitizer, surface flourination, metal deposition, and together with recent ventures on application of {001} facets of anatase titania for visible light response with enhanced charge carrier separation are briefly overviewed.

Download Full-text

Mo-ion doping evoked visible light response in TiO2 nanocrystals for highly-efficient removal of benzene

Chemical Engineering Journal ◽

10.1016/j.cej.2020.125444 ◽

2020 ◽

Vol 397 ◽

pp. 125444 ◽

Cited By ~ 1

Author(s):

Peng Sun ◽

Qipeng Lu ◽

Jun Zhang ◽

Ting Xiao ◽

Wenxiu Liu ◽

...

Keyword(s):

Visible Light ◽

Light Response ◽

Tio2 Nanocrystals ◽

Efficient Removal ◽

Highly Efficient ◽

Visible Light Response ◽

Ion Doping

Download Full-text

Interfacial charge-transfer transitions in a TiO2-benzenedithiol complex with Ti–S–C linkages

Physical Chemistry Chemical Physics ◽

10.1039/c5cp05046d ◽

2015 ◽

Vol 17 (44) ◽

pp. 29867-29873 ◽

Cited By ~ 15

Author(s):

Jun-ichi Fujisawa ◽

Ryuki Muroga ◽

Minoru Hanaya

Keyword(s):

Charge Transfer ◽

Visible Light ◽

Room Temperature ◽

Light Response ◽

Interfacial Charge Transfer ◽

Visible Light Response ◽

Charge Transfer Transitions ◽

Interfacial Charge

A visible light response of TiO2 due to interfacial charge-transfer transitions was obtained by the addition of benzenedithiol at room temperature.

Download Full-text

Metal ion and N co-doped TiO2 as a visible-light photocatalyst

Journal of Materials Research ◽

10.1557/jmr.2004.0269 ◽

2004 ◽

Vol 19 (7) ◽

pp. 2100-2108 ◽

Cited By ~ 57

Author(s):

Yoshiaki Sakatani ◽

Hiroyuki Ando ◽

Kensen Okusako ◽

Hironobu Koike ◽

Jun Nunoshige ◽

...

Keyword(s):

Visible Light ◽

Photoelectron Spectroscopy ◽

Metal Ion ◽

Light Response ◽

Complex Method ◽

Visible Light Photocatalyst ◽

X Ray ◽

Visible Light Response ◽

Spin Resonance ◽

Photocatalytic Activities

Powders of TiO2 doped with a metal ion and N species were prepared by a polymerized complex method and the visible-light photocatalytic activities of the products are investigated. Of the metal ions studied (K+, Ca2+, Sr2+, Ba2+, Nb5+, Fe3+, Zn2+, and Al3+), the photocatalyst prepared with Sr2+ exhibits the highest activity for acetaldehyde decomposition under visible-light irradiation. Results obtained from x-ray photoelectron spectroscopy (XPS) and electron spin resonance (ESR) analyses suggest that the doped N species reside at interstitial lattice positions in the catalyst. It was also found by XPS and ESR measurements that the doped N species combine with lattice oxygen to give rise to a paramagnetic property. The visible-light response of the catalyst is driven by the formation of paramagnetic N species at interstitial positions in the TiO2 lattice.

Download Full-text

PRECURSORS-DECOMPOSITED SYNTHESIS AND VISIBLE-LIGHT-RESPONSE PHOTOCATALYSTIC PROPERTIES OF UNIFORM POROUS Bi2O3 NANOSPHERES

NANO ◽

10.1142/s1793292014500672 ◽

2014 ◽

Vol 09 (06) ◽

pp. 1450067 ◽

Cited By ~ 1

Author(s):

XIAOLI SUN ◽

WEIDONG SHI ◽

HAO TU ◽

LEILEI XU ◽

YAN YAN ◽

...

Keyword(s):

Hydrogen Peroxide ◽

Visible Light ◽

Narrow Band ◽

Hydrothermal Reaction ◽

High Surface ◽

High Surface Area ◽

Light Response ◽

Sodium Cholate ◽

Visible Light Response ◽

Excellent Photocatalytic Activity

The Bi 2 O 3 sphere-like precursors were first synthesized through a simple hydrothermal reaction in the mixture of sodium cholate (SC) and hydrogen peroxide. Thermal decomposition of these precursors would result in the formation of the uniform porous Bi 2 O 3 nanospheres with diameters of ca. 80 nm in air at 500°C. The amount of added H 2 O 2 and the reaction time were found to play important roles in the formation of Bi 2 O 3 sphere-like precursors. The as-prepared porous Bi 2 O 3 nanospheres exhibited a very excellent photocatalytic activity for the degradation of rhodamine B (RB) and methyl blue (MB) dyes under visible-light irradiation, which could be attributed to their narrow band gap and high surface area.

Download Full-text

Au nanoparticle homogeneously decorated C@TiO2 for enhanced visible-light-driven photocatalytic activity

RSC Advances ◽

10.1039/c5ra20737a ◽

2015 ◽

Vol 5 (126) ◽

pp. 103790-103796 ◽

Cited By ~ 3

Author(s):

Yan-Zhen Zheng ◽

Yan-Yan Xu ◽

Hua-Bin Fang ◽

Yuan Wang ◽

Xia Tao

Keyword(s):

Photocatalytic Activity ◽

Charge Carrier ◽

Visible Light ◽

Light Response ◽

Au Nanoparticle ◽

Transport Efficiency ◽

Response Characteristics ◽

Visible Light Response ◽

Visible Light Driven ◽

Carrier Separation

A Au–C@TiO2 photocatalyst shows excellent visible-light response characteristics and promotes charge carrier separation and transport efficiency.

Download Full-text

Anatase Mg0.05Ta0.95O1.15N0.85: a novel photocatalyst for solar hydrogen production

RSC Advances ◽

10.1039/c6ra17152d ◽

2016 ◽

Vol 6 (89) ◽

pp. 86240-86244 ◽

Cited By ~ 5

Author(s):

Honglin Gao ◽

Meiming Zhao ◽

Shicheng Yan ◽

Peng Zhou ◽

Zeyan Li ◽

...

Keyword(s):

Hydrogen Production ◽

Visible Light ◽

Band Gap ◽

Water Splitting ◽

Narrow Band ◽

Light Response ◽

Photoelectrochemical Water Splitting ◽

Solar Hydrogen ◽

Visible Light Response ◽

Solar Hydrogen Production

Anatase Mg0.05Ta0.95O1.15N0.85, exhibiting a narrow band gap for solar hydrogen, is a promising visible-light-response photocatalyst for photocatalytic or photoelectrochemical water splitting.

Download Full-text

Research Progress on TiO2-Based Visible Light Photocatalyst

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.518-523.669 ◽

2012 ◽

Vol 518-523 ◽

pp. 669-674 ◽

Cited By ~ 1

Author(s):

Xian Xiong Cheng ◽

Yong Hong Zhao ◽

Tao Zhang ◽

Dan Zhou

Keyword(s):

Visible Light ◽

Precious Metals ◽

Light Response ◽

Research Progress ◽

Composite Photocatalyst ◽

Visible Light Photocatalyst ◽

Visible Light Response ◽

Ion Doping ◽

New Type ◽

Positive Ion

In this paper the progress on research of visible light response TiO2photocatalyst was summarized. From the perspectives of positive ion doping, nonmetal elements doping, precious metals deposit, dye photosensitization and new type composite photocatalyst, the paper investigated the preparation, photocatalysis mechanism, effects and shortcomings of the concerned material. The research situation, progress and prospects of visible light response TiO2photocatalyst were described systematically.

Download Full-text