Nb2O5催化剂的制备及光催化环己烷选择氧化性能的研究

大理大学学报 ›› 2021, Vol. 6 ›› Issue (6): 40-44.

Nb₂O₅催化剂的制备及光催化环己烷选择氧化性能的研究

大理大学药学院，云南大理671000

收稿日期:2020-12-17 出版日期:2021-06-15 发布日期:2021-06-29
通讯作者: 何洁丽，副教授，博士，E-mail：jieli.1985@163.com。
作者简介:陈梅，硕士研究生，主要从事纳米催化材料的开发和应用研究。
基金资助:
云南省应用基础研究计划项目（2019FB013）；云南省中青年学术和技术带头人后备人才项目（2018HB003）

Study on the Synthesis of Nb2O5 Catalysts and Photocatalytic Selective Oxidation of Cyclohexane

College of Pharmacy, Dali University, Dali, Yunnan 671000, China

Received:2020-12-17 Online:2021-06-15 Published:2021-06-29

摘要/Abstract

摘要： 目的：探究五氧化二铌（Nb2O5）纳米催化剂的形貌对可见光照射下环己烷选择氧化反应性能的影响，建立一种高效、环保
的催化选择氧化环己烷合成环己酮和环己醇的方法。方法：以水热法可控制备不同形貌的Nb2O5纳米催化剂，300 W氙灯为光源
（λ> 420 nm），反应产物采用气相色谱分析，内标法定量。结果：通过控制五氯化铌（NbCl5）的水解条件，水热处理后得到了
Nb2O5纳米短柱、纳米棒和纳米线。考察的最佳反应条件下，环己烷转化率高达94.7%，醇酮总选择性为69.2%。结论：可见光
催化环己烷选择氧化反应，Nb2O5纳米催化剂表现出显著的形貌效应；以Nb2O5纳米线为催化剂，可见光照射，实现了常温常压
下环己烷高效选择氧化制环己酮和环己醇。

关键词: 环己烷, 选择氧化, 环己酮, 环己醇, Nb2O5纳米催化剂

Abstract: Objective: To explore the effect of the morphology of Nb2O5 nanocatalysts on the selective oxidation performance of
cyclohexane under visible light irradiation, and to establish an efficient and environmentally friendly method for the selective oxidation
of cyclohexane to synthesize cyclohexanone and cyclohexanol. Methods: Controllable synthesis of Nb2O5 nanocatalysts with different
morphology was achieved by hydrothermal method; 300 W xenon lamp was used as light source（λ > 420 nm）; the products were
analyzed and determined quantitatively by gas chromatography with internal standard. Results: Through controlling the hydrolysis
condition of NbCl5, and Nb2O5 nano short column, nanorods and nanowires were obtained after hydrothermal treatment. Under the
optimum reaction condition, the conversion of cyclohexane was 94.7%, and the total selectivity of cyclohexanone and cyclohexanol was
69.2%, respectively. Conclusion: The selective oxidation of cyclohexane catalyzed by Nb2O5 nanocatalysts under visible light
irradiation has a significant morphological effect. Over the Nb2O5 nanowires, the photocatalytic selective oxidation of cyclohexane to
cyclohexanone and cyclohexanol can be efficiently driven under visible light at normal temperature and pressure.

Key words: cyclohexane, selective oxidation, cyclohexanone, cyclohexanol, Nb2O5 nanocrystals

陈梅, 罗佳, 何洁丽. Nb₂O₅催化剂的制备及光催化环己烷选择氧化性能的研究[J]. 大理大学学报, 2021, 6(6): 40-44.

Chen Mei, Luo Jia, He Jieli. Study on the Synthesis of Nb2O5 Catalysts and Photocatalytic Selective Oxidation of Cyclohexane[J]. Journal of Dali University, 2021, 6(6): 40-44.

参考文献

〔1〕SCHUCHARDT U，CARDOSO D，SERCHELI R，et al. Cy⁃
clohexane Oxidation Continues to Be a Challenge〔J〕. Appl
Catal A-Gen，2001，211（1）：1-17.
〔2〕HONG Y，SUN D，FANG Y. The Highly Selective Oxidation
of Cyclohexane to Cyclohexanone and Cyclohexanol over
VAlPO4 Berlinite by Oxygen under Atmospheric Pres⁃
sure〔J〕. Chem Cent J，2018，12（1）：36.
〔3〕沈海民，王岩，佘远斌. 金属卟啉催化氧化环己烷最新
研究进展〔J〕. 化工进展，2018，37（6）：2031-2045.
〔4〕SIMÕES M M Q，CONCEICÃO C M M，GAMELAS J A F，
et al. Keggin-Type Polyoxotungstates as Catalysts in the
Oxidation of Cyclohexane by Dilute Aqueous Hydrogen Per⁃
oxide〔J〕. J Mol Catal A-Chem，1999，144（3）：461-468.
〔5〕BUSA A V，ROGER L，EBBE N，et al. New Copper（Ⅱ）
Salicylaldimine Derivatives for Mild Oxidation of Cyclohex⁃
ane〔J〕. J Chem Sci，2018，130（6）：59-68.
〔6〕SHIRAISHI Y，SHIOTA S，HIRAKAWA H，et al. Titanium

Dioxide/Reduced Graphene Oxide Hybrid Photocatalysts

for Efficient and Selective Partial Oxidation of Cyclohex⁃
ane〔J〕. ACS Catal，2016，7（1）：293-300.
〔7〕ZHAO X X，ZHANG Y，WEN P，et al. NH2-MIL-125（Ti）/
TiO2 Composites as Superior Visible-Light Photocatalysts
for Selectiveoxidation of Cyclohexane〔J〕. Mol Catal，2018，
452：175-183.
〔8〕YANG D X，WU T B，CHEN C J，et al. The Highly Selec⁃
tive Aerobic Oxidation of Cyclohexane to Cyclohexanone
and Cyclohexanol over V2O5@TiO2 under Simulated Solar
Light Irradiation〔J〕. Green Chem，2017，19（1）：311-318.
〔9〕WANG Y，FU Z，WEN X，et al. 8-Quinolinolato Iron（Ⅲ）-
Catalyzed Oxygenation of Cyclohexane with Hydrogen Per⁃
oxide under Heating or Visible Light Irradiation〔J〕. J Mol
Catal A Chem，2014（383/384）：46-52.
〔10〕PRADO A G S，BOLZON L B，PEDROSO C P，et al.
Nb2O5 as Efficient and Recyclable Photocatalyst for Indigo
Carmine Degradation〔J〕. Appl Catal B-Environ，2008，82
（3/4）：219-224.
〔11〕JIN X，LIU C，XU J，et al. Size-Controlled Synthesis of
Mesoporous Nb2O5 Microspheres for Dye Sensitized Solar
Cells〔J〕. Rsc Adv，2014，4（67）：35546-35553.
〔12〕KAJITA S，MIMURO F，YOSHIDA T，et al. One-Step
Plasma Synthesis of Nb2O5 Nanofibers and Their En⁃
hanced Photocatalytic Activity〔J〕. Chemphyschem，2018，
19（23）：3237-3246.
〔13〕FURUKAWA S，SHISHIDO T，TERAMURA K，et al.
Reaction Mechanism of Selective Photooxidation of Hydro⁃
carbons over Nb2O5〔J〕. J Phys Chem C，2011，115（39）：
19320-19327.
〔14〕SHAO R，CAO Z，XIAO Y，et al. Enhancing Photocatalytic
Activity by Tuning the Ratio of Hexagonal and Ortho⁃
rhombic Phase Nb2O5 Hollow Fibers〔J〕. RSC Adv，2014，4
（50）：26447.
〔15〕林吉文，施祖培. 化工百科全书：第19 卷〔M〕. 北京：
化学工业出版社，1998：119-148.
〔16〕蔡汉临. 环己基过氧化氢的气相色谱分析〔J〕. 色谱，
1987（4）：245-247.

Nb₂O₅催化剂的制备及光催化环己烷选择氧化性能的研究

Study on the Synthesis of Nb2O5 Catalysts and Photocatalytic Selective Oxidation of Cyclohexane

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 0

编辑推荐

Metrics

本文评价