锌铁氧化物共复合二氧化钛纳米管的制备 及其CO2光电催化还原性能

›› 2017, Vol. 48 ›› Issue (10): 95-100.

锌铁氧化物共复合二氧化钛纳米管的制备及其CO2光电催化还原性能

刘雅琼,杨德凤,朱新宇

中国石化石油化工科学研究院

收稿日期:2017-04-05 修回日期:2017-06-27 出版日期:2017-10-12 发布日期:2017-09-28
通讯作者: 刘雅琼 E-mail:liuyaqiong.ripp@sinopec.com

PREPARATION OF TITANIUM DIOXIDE NANOTUBE MODIFIED BY ZINC IRON OXIDES AND ITS APPLICATION IN PHOTOELECTROCATALYTIC REDUCTION OF CO2

, ,XinYu Zhu

Received:2017-04-05 Revised:2017-06-27 Online:2017-10-12 Published:2017-09-28

摘要/Abstract

摘要： 首先采用阳极氧化法在钛基底上制备出直立有序的TiO2纳米管（TiO2NTs）阵列，通过浸渍法将氧化锌和氧化铁同时修饰到TiO2NTs上，得到锌铁共复合二氧化钛纳米管（ZnFe2O4/TiO2NTs），并将复合纳米管材料应用于光电催化还原CO2研究，考察制备条件对TiO2NTs形貌的影响以及采用SEM，XRD，UV-vis方法对TiO2NTs和ZnFe2O4/TiO2NTs进行表征。结果表明：锌铁氧化物附着在TiO2NTs表面，ZnFe2O4/TiO2NTs复合材料的禁带宽度窄化为2.93 eV；ZnFe2O4/TiO2NTs具有优良的光电催化还原性能，光电催化还原CO2的主要产物为异戊醇、异己醇等碳数较大的醇类化合物。

关键词: 二氧化钛纳米管, 光电催化, CO2还原

Abstract: The upright and orderly TiO2 nanotubes, ATiO2NTs were prepared by anodic oxidation method on the base matrix TiO2. The ZnFe2O4/TiO2NTs were obtained by impregnation of ZnCl2 and FeCl3 solution and applied to the photoelectrocatalytic reduction of CO2. The TiO2NTs and ZnFe2O4/TiO2NTs were characterized by SEM, XRD and UV-vis. The effects of the preparation conditions on the morphology of TiO2NTs were discussed. The results showed that the zinc and iron oxide are on the surface of TiO2NTs, and the band gap of the catalyst is 2.48 eV. It was found that the catalyst has excellent photoelectrocatalytic reduction performance for CO2. The larger alcohol compounds, like isoamyl alcohol, alien alcohol, are obtained.

Key words: TiO2NTs, photoelectrocatalysis, CO2 reduction

刘雅琼杨德凤朱新宇. 锌铁氧化物共复合二氧化钛纳米管的制备及其CO2光电催化还原性能[J]. , 2017, 48(10): 95-100.

XinYu Zhu. PREPARATION OF TITANIUM DIOXIDE NANOTUBE MODIFIED BY ZINC IRON OXIDES AND ITS APPLICATION IN PHOTOELECTROCATALYTIC REDUCTION OF CO2[J]. , 2017, 48(10): 95-100.