The COVID-19 pandemic has led to the increased use of disposable face masks worldwide, resulting in a surge potentially infectious waste. This waste must be safely managed and disposed prevent spread virus. To address this issue, preliminary study explored hydrothermal carbonization (HTC) as potential method for converting surgical mask into value-added carbonaceous materials. HTC treatments we...

Metal-organic frameworks are nano-porous adsorbents of relevance to gas separation and catalysis, and separation of oxygen from air is essential to diverse industrial applications. The ferrous salt of 2,5-dihydroxy-terephthalic acid, a metal-organic framework of the MOF74 family, can selectively adsorb oxygen in a manner that defies the classical picture: adsorption sites either do or do not sh...

The adsorption of terephthalic acid [C(6)H(4)(COOH)(2), TPA] on a Pd(111) surface has been investigated by means of scanning tunneling microscopy (STM), x-ray photoelectron spectroscopy, and near-edge x-ray absorption fine structure spectroscopy under ultrahigh vacuum conditions at room temperature. We find the coexistence of one- (1D) and two-dimensional (2D) molecular ordering. Our analysis i...

2,5-Furan dicarboxylic acid (FDCA) is a promising intermediate for producing polyethylene furan dicarboxylate, an alternative to terephthalate that combines significantly lower greenhouse gas footprint with better mechanical and barrier properties. This work presents process design techno-economic evaluation FDCA from non-edible biomass via the oxidation of furfural furoate salt, subsequent car...

The development of graphene oxide/rare earth complexes luminescent materials is limited due to the strong quenching ability oxide. However, hybrid with pyromellitic acid (PMA) as ligand not only have better performance, but also stronger luminescence intensity. Herein we tested effect carboxylic structure PMA on intensity materials. Phthalic (PA), Isophthalic (i-PA) and Terephthalic (p-PA) are ...

Polyethylene terephthalate (PET) is a polymeric material with high global demand. Conventionally, PET is produced from fossil-fuel-based materials. Herein, we explored the feasibility of a sustainable method for PET production by using solely bio-renewable resources. Specifically, 2,5-dimethylfuran (derived from lignocellulosic biomass through 5-(hydroxymethyl)furfural) and acrolein (produced f...

The effect of polyesterase preparations from Thermomyces lanuginosus and Beauveria brongniartii on the hydrophilicity of PET materials was assessed. As a result of polyesterase treatment the hydrophilicity of PET fabrics was increased by up to 8 cm in terms of rising height with increases in surface tension from 6.2 mNm (heat-inactivated control samples) to above 8 mNm. Both enzymes were able t...

BACKGROUND It is well known that cerium oxide nanoparticles (CeNPs) have intense antioxidant activity. The antioxidant property of CeNPs are widely used in different areas of research, but little is known about the oxidative damage of Cu2+ associated with Type II diabetes mellitus (T2DM). MATERIAL AND METHODS In our research, the function of CeNPs was tested for its protection of β-cells from t...

Synthesis of Poly(propylene terepthalate) (PPT) is normally carried out (in batch as well as semi-batch mode) in a combined mixture of TPA (terephthalic acid) and PG (1,3-propanediol) with a suitable catalyst in two steps: esterification and polycondensation. Functional group modeling technique is used here to analyse the semibatch PPT formation system. Objectives of multiobjective optimization...