In-situ growth of Co/Ni bimetallic organic frameworks on carbon spheres with catalytic ozonation performance for removal of bio-treated coking wastewater

Pang，Zijun1; Luo，Pei1,2; Wei，Cong1; Qin，Zhi1; Wei，Tuo1; Hu，Yun1; Wu，Haizhen3; Wei，Chaohai1

2021

10.1016/j.chemosphere.2021.132874

CHEMOSPHERE   影响因子和分区

0045-6535

1879-1298

The Co/Ni-MOFs@CS composite derived from Co/Ni bimetallic organic framework was synthesized and characterized. Compared with a single O system, the synergy between carbon sphere (CS) and metal organic frameworks (MOFs) improved the electron transfer efficiency and the formation rate of •OH. The coexistence of Co and Ni in various valence states might accelerate the cyclic process of Co(II)/Co(III) and Ni(II)/Ni(III), thereby improving the catalytic activity. Taking levofloxacin as a model pollutant, the mechanism of catalytic process was discussed, and the catalytic reaction was successfully applied to the removal of residual organics in bio-treated coking wastewater (BTCW). The removal rates of chemical oxygen demand (COD) and total organic carbon (TOC) in 60 min were 50.85%–53.71% and 39.98%–43.48%. From the perspective of UV absorption and 3D EEM, catalytic ozonation was more conducive to breaking the electronic protection of inert organic molecules such as heterocyclic compounds, and achieving higher efficiency of mineralization. It provides a new idea for catalytic ozonation technology of wastewater treatment in the future from theory, technology and application.

Bio-treated coking wastewater Catalytic ozonation Co/ni-MOFs@CS Levofloxacin Metal organic framework

EI

英语

其他

20214711201044

Catalysis ; Catalyst activity ; Chemical oxygen demand ; Cobalt compounds ; Nickel compounds ; Organic carbon ; Organometallics ; Ozone ; Ozonization ; Wastewater treatment

Industrial Wastes Treatment and Disposal:452.4 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Organic Compounds:804.1 ; Production Engineering:913.1

ENVIRONMENT/ECOLOGY

2-s2.0-85119343521

Scopus

1.School of Environment and Energy,South China University of Technology,Guangzhou,510006,China
2.School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
3.School of Biology and Biological Engineering,South China University of Technology,Guangzhou,510006,China

Pang，Zijun,Luo，Pei,Wei，Cong,et al. In-situ growth of Co/Ni bimetallic organic frameworks on carbon spheres with catalytic ozonation performance for removal of bio-treated coking wastewater[J]. CHEMOSPHERE,2021,291.

Pang，Zijun.,Luo，Pei.,Wei，Cong.,Qin，Zhi.,Wei，Tuo.,...&Wei，Chaohai.(2021).In-situ growth of Co/Ni bimetallic organic frameworks on carbon spheres with catalytic ozonation performance for removal of bio-treated coking wastewater.CHEMOSPHERE,291.

Pang，Zijun,et al."In-situ growth of Co/Ni bimetallic organic frameworks on carbon spheres with catalytic ozonation performance for removal of bio-treated coking wastewater".CHEMOSPHERE 291(2021).