Antibiotics are bio-accumulating and persistent. its inappropriate disposal can affect human health aquatic fauna. Development of antimicrobial resistance has been announced as one the top ten threats to global in 2019. In this study, Doxycycline adsorption on MCM-41 (not reported earlier) was studied. Adsorbent dose (m), solution pH, time (t) temperature (T) were considered process parameters,...

An efficient enzymatic process was developed to produce optically pure D-phenylalanine through asymmetric resolution of the racemic DL-phenylalanine using immobilized phenylalanine ammonia-lyase (RgPAL) from Rhodotorula glutinis JN-1. RgPAL was immobilized on a modified mesoporous silica support (MCM-41-NH-GA). The resulting MCM-41-NH-GA-RgPAL showed high activity and stability. The resolution ...

Grafting of Co(NCCH3)2Cl2 onto mesoporous Ti-MCM-41 silica in acetonitrile solution affords binuclear Ti-O-Co sites on the pore surface under complete replacement of the precursor ligands by interactions with anchored Ti centers and the silica surface. The Co ligand field spectrum signals that the Co centers are anchored on the pore surface in tetrahedral coordination. FT-infrared action spectr...

The synthesis of self-reinforced polyethylene-based materials prepared by in-situ polymerisation is described. The methodology developed uses MCM-41 mesoporous material in a triple role: as catalyst carrier for ethylene polymerisation within its pores and channels in a first stage, as nanofiller of the formed polyethylene matrix during its useful lifetime and, finally, as promoter for long-term...

Abstract Highly ordered pure MCM-41 and In-MCM-41 mesoporous adsorbents (with Si/In = 95 (IM0.05) 90 (IM0.1)) were synthesized using the hydrothermal-assisted method. The structural, morphological texture characteristics investigated by XRD, N 2 adsorption–desorption, SEM-EDX, TEM, diffuse reflectance (DR) FTIR. broadening XRD diffraction peaks as well shifts to higher lower 2-theta in IM0.05 I...

Tire pyrolytic oil (TPO) obtained from thermal pyrolysis of scrap tires is not a diesel equivalent fuel which can be used directly in vehicles due to its high density, viscosity, sulfur content, low flash point and cetane index. It only limited way by mixing with (DF) amounts less than 30 %. In this study, the was carried out at heating rates 5 10?C min-1 range 450?600?C, using mixture hierarch...

M41S: A family of mesoporous materials including MCM41, MCM-48, and MCM-50 MSU-1,2,3,4: Michigan State University no. 1, 2, 3, 4, a series of wormhole mesoporous materials prepared in the presence of nonionic surfactants Pluronic: polyethylene oxide–polypropylene oxide triblock surfactant, (EO)m(PO)n(EO)m, for example, P123 = (EO)20 (PO)70(EO)20 SBA-x: Santa Barbara no. x, a series of mesoporou...