TY - JOUR
T1 - Self-assembly of mesoporous Bi-S-TiO2 composites for degradation of industrial dinitrotoluene solution under UV light
AU - Gan, Qiang
AU - Feng, Guoqi
AU - Liu, Xia
AU - Shang, Hairu
AU - Feng, Changgen
N1 - Publisher Copyright:
© 2017, Springer-Verlag Berlin Heidelberg.
PY - 2017/4/1
Y1 - 2017/4/1
N2 - Mesoporous Bi-S-TiO2 composites were synthesized by the method combining evaporation-induced self-assembly (EISA) method with impregnation process. Characterization shows mesoporous Bi-S-TiO2 was a highly crystalline anatase, with relatively high thermal stability, large surface area (75–120 m2/g), and large mesopore (10–20 nm). The results also revealed that Bi and S species existed in Bi4+, S2−, S and S6+ forms in the mesoporous TiO2, which allow the mesoporous Bi-S-TiO2 illustrating strong absorption in the ultraviolet region, and the absorption edge shifts to the visible-light region. Photodegradation tests shown that, about 92.3% industrial aqueous dinitrotoluene (DNT) solution could be degraded by 1.5%Bi-S-TiO2 under UV irradiation for 5 h. Concentration of Bi ions and calcination temperature were found to play important roles in its mesoporous properties and photocatalytic activity.
AB - Mesoporous Bi-S-TiO2 composites were synthesized by the method combining evaporation-induced self-assembly (EISA) method with impregnation process. Characterization shows mesoporous Bi-S-TiO2 was a highly crystalline anatase, with relatively high thermal stability, large surface area (75–120 m2/g), and large mesopore (10–20 nm). The results also revealed that Bi and S species existed in Bi4+, S2−, S and S6+ forms in the mesoporous TiO2, which allow the mesoporous Bi-S-TiO2 illustrating strong absorption in the ultraviolet region, and the absorption edge shifts to the visible-light region. Photodegradation tests shown that, about 92.3% industrial aqueous dinitrotoluene (DNT) solution could be degraded by 1.5%Bi-S-TiO2 under UV irradiation for 5 h. Concentration of Bi ions and calcination temperature were found to play important roles in its mesoporous properties and photocatalytic activity.
KW - Bi element doping
KW - Bi-S-TiO composites
KW - EISA process
KW - Industrial dinitrotoluene solution
KW - Mesoporous TiO derivatives
KW - Photocatalytic degradation
KW - Sulfate ion impregnation
UR - http://www.scopus.com/inward/record.url?scp=85014017655&partnerID=8YFLogxK
U2 - 10.1007/s11356-017-8526-3
DO - 10.1007/s11356-017-8526-3
M3 - Article
C2 - 28247271
AN - SCOPUS:85014017655
SN - 0944-1344
VL - 24
SP - 9585
EP - 9593
JO - Environmental Science and Pollution Research
JF - Environmental Science and Pollution Research
IS - 10
ER -