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Updated: Jan 25, 2026

Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks MOFs
Published on: January 17, 2020
Ni-Induced C-Al2O3-Framework (NiCAF) Supported Core-Multishell Catalysts for Efficient Catalytic Ozonation: A
Kajia Wei1, Xiaoxin Cao1, Wancong Gu1
1State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment , Tsinghua University , Beijing 100084 , P. R. China.
A novel CuCo/NiCAF catalyst combines carbon and alumina for efficient catalytic ozonation, significantly boosting organic carbon removal and pollutant degradation in wastewater treatment.
Area of Science:
- Environmental Science and Engineering
- Catalysis
- Materials Science
Background:
- Alumina-supported catalysts offer structural stability but limited activity in catalytic ozonation.
- Carbon-supported catalysts exhibit high activity but often lack structural robustness.
- Synergistic integration of these materials is needed for enhanced performance.
Purpose of the Study:
- To design and synthesize a novel Ni-induced C-Al2O3-framework (NiCAF) catalyst.
- To enhance the NiCAF framework with a Cu-Co bimetal, creating a core-multishell catalyst (CuCo/NiCAF).
- To evaluate the efficiency of CuCo/NiCAF in catalytic ozonation for organic pollutant removal.
Main Methods:
- Synthesis of a Ni-induced C-Al2O3-framework (NiCAF) with partial carbon graphitization.
- Loading of Cu-Co bimetal onto the NiCAF to form a core-multishell catalyst (CuCo/NiCAF).
- Testing catalytic activity in total organic carbon removal and pilot-scale wastewater treatment.
Main Results:
- CuCo/NiCAF demonstrated a 67% higher rate constant for TOC removal than Al2O3-supported catalysts.
- Enhanced hydroxyl radical (·OH) production efficiency (76%) and organic adsorption capacity (86%).
- Pilot-scale testing showed a 120% increase in ozone utilization efficiency for wastewater treatment.
Conclusions:
- The CuCo/NiCAF catalyst effectively synergizes structural stability and high catalytic activity.
- Embedded carbon and bimetal composition enhance reaction kinetics and pollutant degradation.
- NiCAF-supported catalysts are highly viable for practical applications in wastewater treatment.
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