3D hierarchical honeycomb structured MWCNTs coupled with CoMnAl-LDO: fabrication and application for ultrafast catalytic degradation of bisphenol AElectronic supplementary information (ESI) available: TEM images of o-MWCNTs and SEM images of CNTs-LDO-0.62. EDS mapping of CNTs-LDO-1.23, LDO, CNTs-LDH-1.23 and LDH. XRD patterns of CNTs-LDH and CNTs-LDO. Raman spectra of (a) CNTs-LDH and (b) CNTs-LDO. TOC removal on different catalytic. The adsorption of Co and Mn during the preparation of samples.

• Main Authors: Li, Wen, Wu, Pingxiao, Yang, Shanshan, Zhu, Yajie, Kang, Chunxi, Tran, Ly Tuong, Zeng, Beilei
• Format: Journal Article
• Language: English
• Published: 08.01.2015
• ISSN: 2046-2069
• DOI: 10.1039/c4ra15339a

3D hierarchical honeycomb nano-structured o-MWCNTs coupled with CoMnAl-layer double oxides have been successfully fabricated and characterized as a heterogeneous catalyst for bisphenol A (BPA) degradation using potassium monopersulfate (PMS) as oxidant. The role of MWCNTs was investigated and discussed in terms of surface morphology, structure, composition and catalytic activity of the as-prepared nanohybrid by investigation of SEM, TEM, XRD, XPS, and Raman measurements, etc. The results showed that catalytic performance of the CNTs-LDO can be significantly enhanced with the increase of o-MWCNTs content in the hybrids, and MWCNTs provided orientation/confinement for nanohybrid formation and the defects generated by calcination might increase PMS activation for the production of sulfate radicals. Schematic illustration for the synthesis of CNTs-LDH. (I): The surface modification of MWCNTs. (II): The adsorption of metal ions. (III): The formation of 2D CNTs-LDH nanosheets. (IV): The formation of 3D hierarchical honeycomb nano-structure.