Metal organic frameworks(MOFs)derivatives represented by quasi-MOFs have excellent physical and chemical properties and can be applied for the catalytic combustion of volatile organic compounds(VOCs).In this work,Pd/quasi-Ce-BTC synthesized by simple one-step N2 pyrolysis was applied to the oxidation of toluene,showing excellent toluene catalytic activity(T90=175℃,30000 mL/(g.h)).Microscopic analyses indicate the formation and interaction of a carbon matrix composite quasi-MOF structure interface.The results show that the amorphous carbon matrix formed during the partial py-rolysis of Ce-BTC significantly improves the adsorption and activation capacity of toluene in the reaction,and constructs a reductive system to maintain high concentrations of Ce3+and Pd0,which can facilitate the activation and utilization of oxygen in reaction.Quasi in-situ XPS proves that carbon matrix is indirectly involved in the activation and storage of oxygen,and Pd0 is the crucial active site for the activation of oxygen.Stability and water resistance tests display good stability of Pd/quasi-Ce-BTC.This work provides a potential method for designing quasi-MOF catalysts towards VOCs effective abatement.

Chunjing Su;Zhi Li;Mengqi Mao;Wenhua Ye;Jinping Zhong;Quanming Ren;Hairong Cheng;Haomin Huang;Mingli Fu;Junliang Wu;Yun Hu;Daiqi Ye;Haihong Xu

School of Environment and Energy,South China University of Technology,Guangzhou 510006,China;National Engineering Laboratory for VOCs Pollution Control Technology and Equipment(SCUT),Guangzhou 510006,China;Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control(SCUT),Guangzhou 510006,China;Guangdong Provincial Engineering and Technology Research Centre for Environmental Risk Prevention and Emergency Disposal(SCUT),Guangzhou 510006,China;Appraisal Center for Environment&Engineering,Ministry of Ecology and Environment,Beijing 100012,China

稀土学报（英文版）

[1]Chunjing Su;Zhi Li;Mengqi Mao;Wenhua Ye;Jinping Zhong;Quanming Ren;Hairong Cheng;Haomin Huang;Mingli Fu;Junliang Wu;Yun Hu;Daiqi Ye;Haihong Xu-.Unraveling specific role of carbon matrix over Pd/quasi-Ce-MOF facilitating toluene enhanced degradation)[J].稀土学报（英文版）,2022(11):1751-1762

rolysis

Unraveling,specific,role,carbon,matrix,over,quasi,facilitating,toluene,enhanced,degradation,Metal,organic,frameworks,MOFs,derivatives,represented,by,have,excellent,physical,chemical,properties,be,applied,catalytic,combustion,volatile,compounds,VOCs,In,this,BTC,synthesized,simple,one,step,N2,pyrolysis,was,oxidation,showing,activity,T90,Microscopic,analyses,indicate,formation,interaction,composite,structure,interface,results,that,amorphous,formed,during,partial,significantly,improves,adsorption,activation,capacity,reaction,constructs,reductive,system,maintain,high,concentrations,Ce3+and,Pd0,which,facilitate,utilization,oxygen,Quasi,situ,XPS,indirectly,involved,storage,crucial,active,Stability,water,resistance,tests,display,good,stability,This,provides,potential,method,designing,catalysts,towards,effective,abatement

0.588863