In this study, organic amines were used to modify zeolite NaA and analcime synthesized using fly ash iron tailing slag as raw materials, respectively, the adsorption properties of modified zeolites toward CO2 determined. We found that when tetraethylenepentamine (TEPA) was used, had highest nitrogen content. The capacity for 4.02 mmol/g 1.16 temperature 70 °C flow rate 50 mL/min. According isot...

Abstract Novel hypercrosslinked polymers nanoparticles (HCPNs) were designed by suspension polymerization technique with high surface area as well HCPNs functional groups have the affinity to removal of copper ions from aqueous solutions. Two synthesized through a two-step reaction, initially including N-methacryloxytetrachlorophthalimide (NMTPA) divinyl benzene (DVB) give poly(NMTPA-co-DVB) an...

FTER parental exposure to mutagens and subsequent mating, adverse A genetic effects may manifest sequentially by preimplantation losses of fertilized ova and zygotes, early fetal deaths, and sterility and semisterility in F, progeny ( CATTANACH 1964; EPSTEIN et al. 1970a). Effects of ionizing irradiation of the male or of sperm in uitro on fertilization and subsequent development of the zygote ...

Nonenzymatic and glutathione S-transferase (GST) catalyzed glutathione (GSH) conjugation has been postulated as a mechanism by which alkylating cytostatic drugs can be inactivated intracellularly. In this study, we describe studies on the glutathione-dependent biotransformation of thiotepa (tris(1-aziridinyl)phosphine sulfide), a trifunctional alkylating agent. 31P NMR studies showed that thiot...

Metal-incorporated SAPO-34 catalysts were prepared by one-step hydrothermal method. Effects of various parameters including the types metal ions, Cu2+ sources, structure directing agents (SDAs), temperature and time on catalyst activity metal-incorporated investigated. Three (Cu/SAPO-34, Fe/SAPO-34 Mn/SAPO-34) successfully obtained. Compared with Mn/SAPO-34 catalysts, Cu/SAPO-34 revealed comple...

Abstract It is known that the world scenario one of constant search for sustainable technologies can reduce emission carbon dioxide (CO 2 ) in atmosphere. This because CO seen as main responsible increase generation greenhouse gases, which leads to global warming and climate change. The development efficient adsorbents capture a current challenge. MCM-41 SBA-15 were synthesized microwave reacto...