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Preparation of Fe/Cu Dual Active Catalysts Based on Coal Gasification Slag and Their Application in Pulp and Paper Wastewater Applications in Deep Processing
Received:January 11, 2024  
DOI：10.11980/j.issn.0254-508X.2024.06.017
Key Words:coal gasification slag  carbon-silicon mesoporous materials  heterogeneous Fenton catalyst
Author NameAffiliationPostcode
HU Yin State Key Lab of Pulp and Paper Engineering， South China University of Technology， Guangzhou，Guangdong Province，510640 510640
MO Lihuan State Key Lab of Pulp and Paper Engineering， South China University of Technology， Guangzhou，Guangdong Province，510640 510640
LI Jun State Key Lab of Pulp and Paper Engineering， South China University of Technology， Guangzhou，Guangdong Province，510640 510640
PU Liwei State Key Lab of Pulp and Paper Engineering， South China University of Technology， Guangzhou，Guangdong Province，510640 510640
YANG Chenyi State Key Lab of Pulp and Paper Engineering， South China University of Technology， Guangzhou，Guangdong Province，510640 510640
CHEN Yongfa State Key Lab of Pulp and Paper Engineering， South China University of Technology， Guangzhou，Guangdong Province，510640 510640
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Abstract:Fe/Cu dual active heterogeneous Fenton catalyst was prepared using carbon silicon mesoporous material prepared by acid leaching of coal gasification slag as a carrier through carbon thermal reduction method. The preparation process of the catalyst was optimized and its catalytic effect on the removal of p-chlorophenol and treatment of pulp and paper wastewater by H2O2 was investigated with p-chlorophenol as madel. The results showed that the catalyst prepared under the conditions of calcination temperature of 900 ℃， impregnation solution concentration of 0.2 mol/L， and Fe/Cu molar ratio of 2∶1 had the highest activity， with a removal rate of 96.8% for chlorophenol. Under the conditions of initial pH value=5， H2O2 dosage of 16 mmol/L， catalyst dosage of 1.25 g/L， and reaction time of 120 min， the CODCr removal rate of wastewater was 67.8%， the chromaticity removal rate was 97.4%， and the effluent CODCr was 63.13 mg/L.
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