TY - JOUR
T1 - Development of 3-dimensional Co3O4 catalysts with various morphologies for activation of Oxone to degrade 5-sulfosalicylic acid in water
AU - Li, Mei Hsuan
AU - Da Oh, Wen
AU - Lin, Kun Yi Andrew
AU - Hung, Ching
AU - Hu, Chechia
AU - Du, Yunchen
N1 - Funding Information:
This work is supported by the Ministry of Science and Technology ( MOST ) ( 108-2636-E-005-001- ), Taiwan, and financially supported by the “Innovation and Development Center of Sustainable Agriculture” from The Featured Areas Research Center Program within the framework of the Higher Education Sprout Project by the Ministry of Education (MOE), Taiwan.
Publisher Copyright:
© 2020
PY - 2020/7/1
Y1 - 2020/7/1
N2 - Since 5-sulfosalicylic acid (SFA) has been increasingly released to the environment, SO4[rad]−-based oxidation processes using Oxone have been considered as useful methods to eliminate SFA. As Co3O4 has been a promising material for OX activation, the four 3D Co3O4 catalysts with distinct morphologies, including Co3O4-C (with cubes), Co3O4-P (with plates), Co3O4-N (with needles) and Co3O4-F (with floral structures), are fabricated for activating OX to degrade SFA. In particular, Co3O4-F not only exhibits the highest surface area but also possesses the abundant Co2+ and more reactive surface, making Co3O4-F the most advantageous 3D Co3O4 catalyst for OX activation to degrade SFA. The mechanism of SFA by this 3D Co3O4/OX is also investigated and the corresponding SFA degradation pathway has been elucidated. The catalytic activities of Co3O4 catalysts can be correlated to physical and chemical properties which were associated with particular morphologies to provide insights into design of 3D Co3O4-based catalysts for OX-based technology to degrade emerging contaminants, such as SFA.
AB - Since 5-sulfosalicylic acid (SFA) has been increasingly released to the environment, SO4[rad]−-based oxidation processes using Oxone have been considered as useful methods to eliminate SFA. As Co3O4 has been a promising material for OX activation, the four 3D Co3O4 catalysts with distinct morphologies, including Co3O4-C (with cubes), Co3O4-P (with plates), Co3O4-N (with needles) and Co3O4-F (with floral structures), are fabricated for activating OX to degrade SFA. In particular, Co3O4-F not only exhibits the highest surface area but also possesses the abundant Co2+ and more reactive surface, making Co3O4-F the most advantageous 3D Co3O4 catalyst for OX activation to degrade SFA. The mechanism of SFA by this 3D Co3O4/OX is also investigated and the corresponding SFA degradation pathway has been elucidated. The catalytic activities of Co3O4 catalysts can be correlated to physical and chemical properties which were associated with particular morphologies to provide insights into design of 3D Co3O4-based catalysts for OX-based technology to degrade emerging contaminants, such as SFA.
UR - http://www.scopus.com/inward/record.url?scp=85083032021&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85083032021&partnerID=8YFLogxK
U2 - 10.1016/j.scitotenv.2020.138032
DO - 10.1016/j.scitotenv.2020.138032
M3 - Article
C2 - 32408427
AN - SCOPUS:85083032021
SN - 0048-9697
VL - 724
JO - Science of the Total Environment
JF - Science of the Total Environment
M1 - 138032
ER -