Styrene Epoxidation with t-Butyl Hydroperoxide Catalyzed by Nanometer TiO2(Ⅰ)

Abstract

Abstract: The catalysts of nanometer TiO₂/EtOH, nanometer TiO₂/#em/em#-PrOH and nanometer TiO₂/EtOH-BuOH were prepared by the liquid-phase method from Ti(SO₄)₂in different alcohols. The properties of the catalysts were characterized by TG-DTA, IR, XRD and TEM methods. The results showed that the nanometer TiO₂/#em/em#-PrOH was 20nm×20nm anatase particle with an excellent thermal stability. The activities and selectivities of the catalysts in styrene epoxidation with t-butyl hydroperoxide(TBPH) were studied and compared with the commercial TiO_2.When the oxidation was carried out under a suitable condition the main product and by product were styrene peroxide and phenylformaldehyde, respectively. The conversion of styrene and the selectivity of epoxide at 80 were 33.4% and 70.2% over the catalyst of nanometer TiO₂/#em/em#-PrOH, respectively. The activity of commercial TiO₂was only 1/3 that of nanometer TiO₂/#em/em#-PrOH. The iso-propanol supported nanometer TiO₂improved obviously the activity and selectivity in the epoxidation of styrene.

Key words: Nanometer TiO₂, Characterization, Styrene epoxidation

CLC Number:

O643.1

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QI Jian-Ying, YANG Qi-Yun, LIU Zheng-Yi, LI Xian-Jun . Styrene Epoxidation with t-Butyl Hydroperoxide Catalyzed by Nanometer TiO₂(Ⅰ)[J]. Chem. J. Chinese Universities, 1999, 20(4): 640.

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URL: http://www.cjcu.jlu.edu.cn/EN/

http://www.cjcu.jlu.edu.cn/EN/Y1999/V20/I4/640

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Styrene Epoxidation with t-Butyl Hydroperoxide Catalyzed by Nanometer TiO₂(Ⅰ)

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[1]	YAO Qing, YU Zhiyong, HUANG Xiaoqing. Progress in Synthesis and Energy-related Electrocatalysis of Single-atom Catalysts [J]. Chem. J. Chinese Universities, 2022, 43(9): 20220323.
[2]	GENG Chuannan, HUA Wuxing, LING Guowei, TAO Ying, ZHANG Chen, YANG Quanhong. Catalysis in Li-sulfur Battery： Materials and Characterization [J]. Chem. J. Chinese Universities, 2021, 42(5): 1331.
[3]	MA Chao, LIU Xiaona, NIE Chenyang, CHEN Lu, TIAN Peng, XU Hongyi, GUO Peng, LIU Zhongmin. Applications of X-ray and Electron Crystallography in Structural Investigations of Zeolites [J]. Chem. J. Chinese Universities, 2021, 42(1): 188.
[4]	ZHAO Xingling, QI Guodong, WANG Qiang, CHU Yueying, GAO Wei, LI Shenhui, XU Jun, DENG Feng. Structure， Nature and Activity of Ga Species for Propane Aromatization in Ga/ZSM-5 Revealed by Solid-state NMR Spectroscopy [J]. Chem. J. Chinese Universities, 2020, 41(12): 2681.
[5]	ZHANG Jian,ZHU Zhaowu,LEI Ze,WANG Lina,CHEN Desheng,YI Aifei,SU Hui,QI Tao. Preparation of Vanadium Oxalate by Solvent Extraction and Purification with P507 and Its Physicochemical Properties^† [J]. Chem. J. Chinese Universities, 2019, 40(4): 740.
[6]	NIU Qingtao,ZOU Chen,WANG Riguo,LI Lange,HE Aihua. Fractionation and Fraction Characterization of trans-Polyisoprene Rubber Alloys within Reactor^† [J]. Chem. J. Chinese Universities, 2018, 39(10): 2312.
[7]	ZHANG Wenhua, YIN Di, LU Ning, LI Zhenyu, YANG Jinlong. Computational Spectroscopy for Structure Characterization of Nanomaterials: a Case Study of Graphene Oxide [J]. Chem. J. Chinese Universities, 2015, 36(11): 2081.
[8]	OUYANG Qiaofeng, ZHENG Lanlan, CAO Hong, ZHANG Xin, LI Chun, SHEN Jiao, CHEN Liting, LIU Jin. Spectral Performance and Fluorescence Detection of Ionic Liquid [MBPy]Tf₂N^† [J]. Chem. J. Chinese Universities, 2015, 36(10): 1906.
[9]	ZHOU Haifeng, YANG Dongjie, QIU Xueqing, WU Xiaolei. Structural Characterization, Adsorption and Dispersion Properties of Sodium Lignosulfonate by Horseradish Peroxidase Incubation^† [J]. Chem. J. Chinese Universities, 2014, 35(4): 895.
[10]	MA Chao, XU Yan, GUO Xin-Yu, LUO Xiang-Ren, WU Xue-Min. Adsorption Properties of Comb-shaped Copolymer of Polycarboxylic Acid Superplasticizer on the Interface of Fipronil Particles [J]. Chem. J. Chinese Universities, 2013, 34(6): 1441.
[11]	CAI Liang-Yuan, QI Qi, YANG Chun, JIANG Shan, JIANG Qian, WANG Qing-Lun, REN Hong-Xia. Synthesis and Characterization of Chromate Cu(Ⅱ)/Ni(Ⅱ) Chain Complexes [J]. Chem. J. Chinese Universities, 2013, 34(3): 520.
[12]	WEI Yong-Ji, LI Shun-Lai, YU Ming-Wu, DU Hong-Guang. Synthesis of 6-Amino-2-alkylthio Adenosine and Their Anti-platelet Aggregation Activity [J]. Chem. J. Chinese Universities, 2013, 34(11): 2524.
[13]	ZHANG Hua-Peng, ZHANG Jing, NAN Zheng, SUN Run-Guang, ZHANG Peng, LIU A-Juan, LIANG Tao. Structure Characterization and Antitumor Activity of Polysaccharide WPP2 from Pleurotus Eryngii [J]. Chem. J. Chinese Universities, 2013, 34(10): 2327.
[14]	ZHOU Hai-Feng, YANG Dong-Jie, WU Xiao-Lei, QIU Xue-Qing. Structure and Adsorption Characterization of Sodium Lignosulfonate by Laccase Modification [J]. Chem. J. Chinese Universities, 2013, 34(1): 218.
[15]	SU Man-Xiu, WANG Li-Feng, DAI Zhi-Jun, YUAN Zhe-Ming, BAI Lian-Yang. Primary Structural Characterizations of Polypeptide and Antimicrobial Peptides QSAM Modeling [J]. Chem. J. Chinese Universities, 2012, 33(11): 2526.