TY - JOUR
T1 - A novel conversion of Ti-bearing blast furnace slag into Ti-containing zeolites
T2 - Comparison study between FAU and MFI type zeolites
AU - Hu, Guang
AU - Duan, Xu
AU - Yang, Jian
AU - Yang, Chen
AU - Liu, Qingcai
AU - Ren, Shan
AU - Li, Jiangling
AU - Teng, Liumei
AU - Liu, Weizao
N1 - Publisher Copyright:
© 2022 The Society of Powder Technology Japan
PY - 2022/5
Y1 - 2022/5
N2 - In this work, the synthesis of FAU and MFI type Ti-containing zeolites from Ti-bearing blast furnace slag was first achieved via a facile hydrothermal method. The synthesized zeolites were identified to be Ti-NaX and Ti-NaZSM-5 zeolites, with excellent specific surface area of 663.2 and 325.2 m2/g, respectively. Ti species in the Ti-NaX zeolite contained the framework Ti species and amorphous extraframework Ti species, while the Ti species in Ti-NaZSM-5 zeolite were in the form of the two species of above and another anatase TiO2. To investigate the potential application of the synthesized zeolites in photocatalysis field, an exploratory study was carried out by degradation of methyl orange under UV irradiation. As demonstrated, the Ti-NaZSM-5 zeolite showed higher photocatalytic performance and was more suitable to be the support of the TiO2 photocatalyst than the Ti-NaX zeolite. Innovative conversion of TBFS into Ti-containing zeolite materials does provide not only a novel and low-cost approach to waste management, but also a promising material candidate for catalytic oxidation and environmental purification.
AB - In this work, the synthesis of FAU and MFI type Ti-containing zeolites from Ti-bearing blast furnace slag was first achieved via a facile hydrothermal method. The synthesized zeolites were identified to be Ti-NaX and Ti-NaZSM-5 zeolites, with excellent specific surface area of 663.2 and 325.2 m2/g, respectively. Ti species in the Ti-NaX zeolite contained the framework Ti species and amorphous extraframework Ti species, while the Ti species in Ti-NaZSM-5 zeolite were in the form of the two species of above and another anatase TiO2. To investigate the potential application of the synthesized zeolites in photocatalysis field, an exploratory study was carried out by degradation of methyl orange under UV irradiation. As demonstrated, the Ti-NaZSM-5 zeolite showed higher photocatalytic performance and was more suitable to be the support of the TiO2 photocatalyst than the Ti-NaX zeolite. Innovative conversion of TBFS into Ti-containing zeolite materials does provide not only a novel and low-cost approach to waste management, but also a promising material candidate for catalytic oxidation and environmental purification.
KW - Photocatalyst
KW - Ti-bearing blast furnace slag
KW - Wastewater
KW - Zeolite
UR - https://www.scopus.com/pages/publications/85127953553
U2 - 10.1016/j.apt.2022.103559
DO - 10.1016/j.apt.2022.103559
M3 - 文章
AN - SCOPUS:85127953553
SN - 0921-8831
VL - 33
JO - Advanced Powder Technology
JF - Advanced Powder Technology
IS - 5
M1 - 103559
ER -