Rational synthesis of hierarchical magnetic mesoporous silica microspheres with tunable mesochannels for enhanced enzyme immobilization

Abstract

Hierarchical magnetic mesoporous silica microspheres (MMSMs) with a core-shell structure have been fabricated through an improved water/oil biphase synthesis strategy. We firstly reported that the mesopore size can be readily tuned from 6.1 to 11.4 nm by the synergistic effect of surfactant concentration and an amphiphilic agent, thus holding a bright future in many possible applications.

Insight into the efficient catalytic conversion of biomass to EG and 1,2-PG over W–Ni bimetallic catalyst

“…27 The reason for the good catalytic performance of 15% W-5% Ni/MSM could be attributed to the mesoporous pores and spherical structure of the MSM, and the synergistic effect of active metal (W and Ni component) and support, which can increase the rate of mass-transfer on the catalyst surface and decrease carbon deposition. 22,23 However, only a small increase in cellulose conversion was obtained when the mass of the catalyst was increased from 0.45 g to 0.60 g, and the combined yield of EG and 1,2-PG increased slightly (2.84 wt%).…”

“…In particular, the surface structure of a MSM can play a vital part in good chemical durability and high active area for metal deposition, which promotes the synergistic action of the active metal and MSM. [20][21][22][23] The active sites of Ni and W could improve stability and capability through loading on the MSM support, which could accelerate the reaction rate of the catalytic conversion of biomass into polyols.…”

A New Magnetically Retrievable Porous Supported Catalyst for The Suzuki‐Miyaura Cross‐Coupling Reaction

“…Combination of MNPs with different forms of mesoporous silica such as MCMs and SBAs has been widely investigated in recent years. [9] There are plenty of reports on the incorporation of magnetic mesoporous for preparing magnetically retrievable supported catalyst in the Table 1. Magnetic properties of the prepared materials.…”

N‐heterocyclic carbene–palladium(II) complex supported on magnetic mesoporous silica for Heck cross‐coupling reaction

“…[18,20,21] Incorporation of MNPs within the channels of SBA-15 leads to the formation of Fe x O y @SBA-15 particles that can be employed as magnetically retrievable catalyst supports. That is why many researchers have investigated the modification of MNPs by mesoporous silica materials, e.g.…”

“…SBA-15 and various kinds of MCMs, in recent years. [18,20,21] Incorporation of MNPs within the channels of SBA-15 leads to the formation of Fe x O y @SBA-15 particles that can be employed as magnetically retrievable catalyst supports. [22,23] Application of such support material was reported by Tai et al, who studied the synthesis of magnetic core-shell structures of mesoporous silica functionalized with sulfonic acid and used the obtained nanoparticles for catalysis of esterification.…”