title: One dimensional SnO2NRs/Fe2O3NTs with dual synergistic effects for photoelectrocatalytic reduction CO2into methanol.
abstract: The hydrothermal method was explored to prepare SnO2nanorods (SnO2NRs) with the special faces of (110) and (101) on the surface of Fe2O3nanotubes (Fe2O3NTs). According to the SEM and XRD results, the formation process of the hierarchically assembled SnO2NRs was deduced. The SnO2NRs/Fe2O3NTs catalyst that had reached for 120 mins behaved the best photoelectrocatalytic properties. From the view of photocatalytic reduction, the conduction band (-0.75eV vs NHE) is negative enough to drive CO2reduction, and the valence band (1.82eV) is positive enough to oxidize H2O to generate proton, and then the proton is used for CO2reduction. From the electrocatalytic reduction point, the net CO2reduction current density of the composite is 7.48 times that of Fe2O3NTs at -1.1V, indicating that the electrocatalytic performance of Fe2O3NTs is greatly enhanced by the introduction of 6-fold branched SnO2NRs. The predominant reduction product is analyzed by GC was methanol. Herein, two synergistic effects are proved according to the methanol yields, one is the synergistic effect of the photocatalytic and electrocatalytic reduction, the other is the synergistic effect between SnO2NRs and Fe2O3NTs. The results indicated that the composite catalyst behaves excellent photoelectrocatalytic activity for CO2reduction.
authors.affiliation: Department of Chemistry, Shandong Agricultural University, 61 Daizong Road, 271018 Tai'an, China.
authors.forename: Zhongxue
authors.initials: Z
authors.lastname: Yang
authors.affiliation: Department of Chemistry, Shandong Agricultural University, 61 Daizong Road, 271018 Tai'an, China.
authors.forename: Huying
authors.initials: H
authors.lastname: Wang
authors.affiliation: Department of Chemistry, Shandong Agricultural University, 61 Daizong Road, 271018 Tai'an, China.
authors.forename: Weijie
authors.initials: W
authors.lastname: Song
authors.affiliation: Department of Chemistry, Shandong Agricultural University, 61 Daizong Road, 271018 Tai'an, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Wei
authors.affiliation: Chambroad Chemical Industry Research Institute of the Yellow River Delta, China.
authors.forename: Qingping
authors.initials: Q
authors.lastname: Mu
authors.affiliation: Department of Chemical and Biological Engineering, Iowa State University, Ames, United States.
authors.forename: Bo
authors.initials: B
authors.lastname: Kong
authors.affiliation: Department of Chemistry, Shandong Agricultural University, 61 Daizong Road, 271018 Tai'an, China. Electronic address: chem_carbon@outlook.com.
authors.forename: Peiqiang
authors.initials: P
authors.lastname: Li
authors.affiliation: Department of Chemistry, Shandong Agricultural University, 61 Daizong Road, 271018 Tai'an, China.
authors.forename: Hongzong
authors.initials: H
authors.lastname: Yin
keywords: CO(2); Dual synergistic effects; Methanol; PEC reduction; SnO(2) NRs/Fe(2)O(3) NTs