One-pot template-free preparation of mesoporous TiO2 hollow spheres and their photocatalytic activity

2012 ◽  
Vol 47 (11) ◽  
pp. 3065-3069 ◽  
Author(s):  
Shizhao Kang ◽  
Dieer Yin ◽  
Xiangqing Li ◽  
Liang Li ◽  
Jin Mu
Keyword(s):  
Photocatalytic Activity ◽  
Hollow Spheres ◽  
Mesoporous Tio2 ◽  
One Pot ◽  
Template Free ◽  
Tio2 Hollow Spheres

scholarly journals Enhanced photocatalytic activity of hierarchical structure TiO2 hollow spheres with reactive (001) facets for the removal of toxic heavy metal Cr(vi)

RSC Advances ◽  
2014 ◽  
Vol 4 (65) ◽  
pp. 34577-34583 ◽  
Author(s):  
Yong Yang ◽  
Guozhong Wang ◽  
Quan Deng ◽  
Huiming Wang ◽  
Yunxia Zhang ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Photocatalytic Activity ◽  
Hierarchical Structure ◽  
Hollow Spheres ◽  
Toxic Heavy Metal ◽  
Tio2 Hollow Spheres

TiO2 hollow spheres composed of reactive (001) facets were synthesized, and their enhanced Cr(vi) removal activity was demonstrated.

Double-shell structural polyaniline-derived TiO2 hollow spheres for enhanced photocatalytic activity

2019 ◽  
Vol 44 (6) ◽  
pp. 555-564 ◽  
Author(s):  
Xuefeng Sun ◽  
Bin Sun ◽  
Qinghua Gong ◽  
Tingting Gao ◽  
Guowei Zhou
Keyword(s):  
Photocatalytic Activity ◽  
Hollow Spheres ◽  
Tio2 Hollow Spheres

Facile synthesis of TiO2 hollow spheres composed of high percentage of reactive facets for enhanced photocatalytic activity

CrystEngComm ◽  
2014 ◽  
Vol 16 (43) ◽  
pp. 10046-10055 ◽  
Author(s):  
Bin Wang ◽  
Xiao-Ying Lu ◽  
Lawrence K. Yu ◽  
Jin Xuan ◽  
Michael K. H. Leung ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydrothermal Method ◽  
Hollow Spheres ◽  
Facile Synthesis ◽  
Tio2 Hollow Spheres

In this study, facile synthesis of hollow TiO2 spheres composed of a high percentage of reactive facets (~85%) is successfully prepared with TiOSO4 and HBF4 by the hydrothermal method.

scholarly journals Facile Synthesis and Photocatalytic Property of Titania/Carbon Composite Hollow Microspheres with Bimodal Mesoporous Shells

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Guohong Wang ◽  
Bei Cheng ◽  
Jun Zhang ◽  
Lin Xu ◽  
Tingting Yin
Keyword(s):  
Aqueous Solution ◽  
Photocatalytic Activity ◽  
Hollow Spheres ◽  
Photocatalytic Property ◽  
Nitrogen Adsorption ◽  
Carbon Composite ◽  
Hollow Microspheres ◽  
Calcination Time ◽  
One Pot ◽  
Pore Structures

Titania/carbon composite hollow microspheres with bimodal mesoporous shells are one-pot fabricated by hydrothermal treatment of the acidic (NH4)2TiF6aqueous solution in the presence of glucose at180∘C for 24 h and then calcined at450∘C. The as-prepared samples were characterized by XRD, SEM, TEM, HRTEM, UV-visible spectroscopy, and nitrogen adsorption-desorption isotherms. The photocatalytic activity of the as-prepared samples was evaluated by daylight-induced photocatalytic decolorization of methyl orange aqueous solution at ambient temperature. The effects of calcination time on the morphology, phase structure, crystallite size, specific surface area, pore structures, and photocatalytic activity of the microspheres were investigated. The results indicated that the as-obtained TiO2/C composite hollow spheres generally exhibit bimodal mesopore size distribution with their peak intra-aggregated mesopore size in the range of 2.3–4.5 nm and peak interaggregated mesopore size in the range of 5.7–12.7 nm, depending on specific calcination time. The daylight-induced photoactivity of as-obtained hollow TiO2/C microspheres generally exceeds that of Degussa P25. The influences of calcination time on the photoactivity are discussed in terms of carbon content, phase structures, and pore structures.

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