The green synthesis of PdO/Pd anchored on hierarchical ZnO microflowers with a synthetic effect for the efficient catalytic reduction of 4-nitrophenol. (20th April 2020)

• Record Type: Journal Article
• Authors: Liu, Mufei; Yang, Hao; Xu, Zewen; Ma, Wenlu; Cui, Fang; Lu, George; Xu, Linxu; Cui, Tieyu
• Is Part Of: New journal of chemistry. Volume 44:Number 17(2020)
• Page Start: 7035
• Page End: 7041
• Publication Date: 2020-04-20
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/d0nj00001a
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : PdO/Pd anchored on hierarchical ZnO microflowers has excellent development potential for treating dye wastewater. Abstract : Based on green chemistry, 3D hierarchical ZnO microflowers (MFs) constructed from layered 2D nanosheets have been designed as carriers to uniformly load PdO/Pd nanoparticles by the calcination of the precursor (ZnO/Pd(ii ) microflowers) in air. The ZnO/Pd(ii ) microflowers are prepared by dipping the 3D ZnO MFs in an ethanolic solution of PdCl2 without involving additional agents. The as-prepared 3D hierarchical ZnO microflowers are a stable support to enhance the dispersibility of PdO/Pd nanoparticles to achieve better catalytic performance for the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP). In addition, the synergistic effect between the PdO and Pd nanoparticles is another major driver that promotes the catalytic process. Over 98% of 4-NP is reduced within 7 min. Furthermore, structural analysis of the ZnO/PdO/Pd microflowers can provide useful information for understanding structure-performance relationships.