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Preparation of Paper-based Palladium Nanoparticles Composite Catalytic Material and Its Catalytic Reduction Performance for Cr（Ⅵ）
Received:September 11, 2022  
DOI：10.11980/j.issn.0254-508X.2022.11.008
Key Words:paper-based materials  lignocellulose  palladium nanoparticles  catalytic reduction
Fund Project:国家自然科学基金（32171723）。
Author NameAffiliationPostcode
HUANG Yuefeng Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources， College of Light Industry and Food Engineering， Nanjing Forestry University， Nanjing， Jiangsu Province， 210037 210037
CHU Jingjing Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources， College of Light Industry and Food Engineering， Nanjing Forestry University， Nanjing， Jiangsu Province， 210037 210037
ZHANG Lili Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources， College of Light Industry and Food Engineering， Nanjing Forestry University， Nanjing， Jiangsu Province， 210037 210037
WANG Zhiguo* Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources， College of Light Industry and Food Engineering， Nanjing Forestry University， Nanjing， Jiangsu Province， 210037 210037
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Abstract:In this study， micro-nano lignocellulose paper-based materials as carriers， the paper-based palladium nanoparticle composite catalytic materials with “sandwich” structure were prepared by using lignin as both reducing agents and capping agents， and the catalytic reduction performance of hexavalent chromium ions （Cr6+） was analyzed and discussed. The resalts showed that the size of palladium nanoparticles （Pd NPs） decreased with the increase of lignin content. When the lignin content was 3.07%， the loading capacity of Pd NPs reached 0.50%， the catalytic efficiency of the composite catalytic materials for Cr6+ reached the maximum， and the complete degradation and transformation of Cr6+ to Cr3+ could be achieved within 8 min. Moreover， after 5 times recycling， the catalytic efficiency still reached more than 99%， good stability and reusability of the materials were showed by improving the general bonding strength through hot pressing.
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