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Author:

Tang, Zhiyun (Tang, Zhiyun.) | Sun, Jihong (Sun, Jihong.) (Scholars:孙继红) | Zhao, Hongwu (Zhao, Hongwu.) | Bai, Shiyang (Bai, Shiyang.) | Wu, Xia (Wu, Xia.) | Panezai, Hamida (Panezai, Hamida.)

Indexed by:

EI Scopus SCIE

Abstract:

Hybrid materials (Z1-BMMs) were prepared through grafting (2S, 2'S)-N,N'-([2,2'-bipyridine]-3,3'-diyl)bis (pyrrolidine-2-carboxamide) (Z1) onto the surface of bimodal mesoporous silicas (BMMs). Their structural properties and textural parameters were characterized with XRD, SEM, N-2 sorption, UV-vis, FT-IR, TGA, elemental analysis and fluorescence emission. Fluorescence profiles of the obtained Z1-BMMs showed the remarkable blue-shift of characteristic peak in emission spectra compared to that of pure 21, while their fluorescence intensity and peak position strongly depended on mass ratios of Z1 to BMMs. Meanwhile, their catalytic performances for asymmetric aldol reaction presented good activities (yield up to 75%) and high stereo selectivities fee up to 82%), however, Z1-BMMs, if reused more than 2 times, showed rapid catalytic deactivation.

Keyword:

Aldol reaction Bimodal mesoporous silicas Luminescence Bipyridine proline

Author Community:

  • [ 1 ] [Tang, Zhiyun]Beijing Univ Technol, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China
  • [ 2 ] [Sun, Jihong]Beijing Univ Technol, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China
  • [ 3 ] [Zhao, Hongwu]Beijing Univ Technol, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China
  • [ 4 ] [Bai, Shiyang]Beijing Univ Technol, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China
  • [ 5 ] [Wu, Xia]Beijing Univ Technol, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China
  • [ 6 ] [Panezai, Hamida]Beijing Univ Technol, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China

Reprint Author's Address:

  • 孙继红

    [Sun, Jihong]Beijing Univ Technol, Dept Chem & Chem Engn, Beijing Key Lab Green Catalysis & Separat, 100 PingLeYuan, Beijing 100124, Peoples R China

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Source :

MICROPOROUS AND MESOPOROUS MATERIALS

ISSN: 1387-1811

Year: 2018

Volume: 260

Page: 245-252

5 . 2 0 0

JCR@2022

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:260

JCR Journal Grade:1

Cited Count:

WoS CC Cited Count: 11

SCOPUS Cited Count: 12

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 6

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