Knoevenagel condensation between barbituric acid and aldehyde was investigated in the presence of sulfonic acid functionalized nanoporous silica (SBA-Pr-SO3H) and resulted in the formation of arylidene and bis-arylidene barbiturates. Excellent yields and short reaction times are related to the high efficiency of SBA-Pr-SO3H that the reactions take place easily in its nano-pores. SBA-Pr-SO3H as ...

Membrane reusability determines the economic sustainability of separation process. However, membrane was deduced by antifouling properties, while actual reuse performance using palm oil mill effluent (POME) is rarely reported. This study investigates nano-Fe3O4/PVDF (PVDF1) for POME treatment. The chemical oxygen demand (COD), total suspended solid (TSS) permeate, molecular weight cut off (MWCO...

Nano-materials and thin films have immense potential in supporting various applications such as purifying water resources, treating water-borne diseases, detecting pollutants through sensors, most importantly, preventing contamination. However, providing contamination-free for healthy living remains a challenging issue, many parts of the world are facing severe scarcity pollution problems. This...

The filtration of aerosol particles using composites of nano- and microsized fibrous structures is a promising method for the effective separation of nanoparticles from gases. A multi-scale physical system describing the flow pattern and particle deposition at a non-steady-state condition requires an advanced method of modelling. The combination of lattice Boltzmann and Brownian dynamics was us...

Thin-film composite nano-filtration (NF) and reverse osmosis (RO) membranes based NF followed by ROpilot plant at a feed pressure of 20 atm.and flow rate of 10 L/min. was used to remove colour, total dissolved solid (TDS) and chemical oxygen demand (COD) of distillery spent wash. NF was found to be effective for high rejection of TDS, colour and COD by 85%, 99% and 95%, respectively. Furthermor...

The current Covid-19 (SARS-CoV-2) pandemic is causing a tremendous impact on all people in the world. use of masks part preventive measures spreading certain respiratory viral diseases, including Covid-19. One way to prevent viruses fabric masks, but there still shortage that nano filters are needed as material mask layer. purpose this research examine effect nanosilver concentration and nano-T...