Mixed metal nanoparticles loaded catalytic polymer membrane for solvent free selective oxidation of benzyl alcohol to benzaldehyde in a reactor

作者：Prakash S; Charan Chumki; Singh Ajay K; Shahi Vinod K^*

来源：Applied Catalysis B: Environmental , 2013, 132: 62-69.

DOI：10.1016/j.apcatb.2012.11.001

• Selective oxidation
• Catalytic polymeric membranes
• Catalytic membrane reactor
• Metal nanoparticles, Solvent free reaction

Catalytic polymer membrane (CPM) was prepared by in situ loading of mixed (silver and lead) metal nanoparticles (MNPs) in sulfonated poly(ether sulfone) (SPES) matrix. Developed membrane (SPES-Ag-0(35)/Pb-0(65)) was used as a catalyst (oxidant) loaded and separator, in two-compartment catalytic membrane reactor (CMR) for selective oxidation of benzyl alcohol (BnOH) to benzaldehyde (BzH) in ambient conditions without regeneration of catalysts, separation steps and waste generation. CPM acts as barrier and contactor between organic and aqueous phase, which was characterized by FTIR, XRD EDX, SEM, and physicochemical properties. Reported SPES-Ag-0(35)/Pb-0(65) showed good solvent, chemical and thermal stabilities in compare with fluorinated membrane and assessed to be more suitable for CMR. Effects of various reaction parameters such as substituted BnOH, concentration, silver nanoparticles (AgNPs) load etc. were investigated. High performance, low cost and stability of reported SPES-Ag-0(35)/Pb-0(65) suggested its commercial viability for chemical transformations in CMR.

• 出版日期2013-3-27
• 单位海洋化工研究院有限公司