Journal
CERAMICS INTERNATIONAL
Volume 46, Issue 2, Pages 1487-1493Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2019.09.115
Keywords
Nanorod-pillared mesoporous hybrids; ZnO; rGO; Noble metal; Photocatalytic Cr (VI) reduction
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Funding
- National Natural Science Foundation of China [51802123, 51522405, 51864030]
- Natural Science Foundation of Jiangsu Province [BK20180630]
- Fundamental Research Funds for the Central Universities [JUSRP11816]
- Yunnan Science and Technology Major Project [2018ZE008, 2018ZE027]
- Scientific Research Fund of Kunming University of Science and Technology [KKZ3201752046, KKSY201732033]
- Analysis and Testing Foundation of Kunming University of Science and Technology [2018T20110222]
- MOE & SAFEA for the 111 project [B13025]
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Herein, we fabricated mesoporous ternary hybrids composed of Au-functionalized ZnO nanorods grown on rGO nanosheets. The ZnO nanorods distributed on the rGO nanosheets can act as a pillaring layer to avoid the agglomeration of rGO, leading to the formation of abundant mesopores within the hybrids. The high-surfacearea, mesoporous hybrids can offer sufficient active sites and transport channels for efficient adsorption and diffusion of Cr(VI), which was favorable for its photocatalytic reduction due to the adsorption enrichment effects. Moreover, the plasmonic-induced visible-light absorption of Au nanoparticles and efficient charge separation by rGO synergistically contributed to the significantly improved solar-light-driven photocatalytic Cr(VI) reduction properties of the ternary hybrids.
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