Fabrication of a material based on the Schiff base reaction to achieve covalent attachment of NH2-MIL-53(Al) and 3-formylsalicylic acid ligand (3-FSA) for fluorimetric detection of Zn2+ ions based on inhibition...

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Cellulose is a significant widespread sustainable resource on earth. With the development of nanotechnology, the interest of cellulose scientists has moved to the separation of nanocellulose from many plants and their application in technical applications. The promising properties of nanocellulose and related products are driving rapid progress in nanocellulose chemistry and engineering. In fact, nanocelluloses integrate cellulose's essential features with the exceptional properties of nanoscale materials. This paper summarizes modern knowledge in nanocellulose research and development. The methods for synthesizing nanocellulose and its functionalization procedures will be discussed after an introduction to the chemical structure and microfibrillar organization of nanocellulose in cellulose bundles with other components. Finally, the usage of nanocellulose for pollutant detection will be discussed.

For efficient adsorbents of hazardous phenols from samples of waste, composite materials utilizing mesoporous silica and organic ligands were used. The 4-amino antipyrine (4-AAP) ligand has been effectively conjugated to the mesoporous nanoparticles and adsorbs phenols under appropriate conditions. The scanning electron microscope (SEM), X-ray diffraction, and N2 adsorption/desorption isotherms process have been used to research this modern adsorbent content. The data highlighted that the proposed sensor, as per its selectivity, response, financially savvy and eco-accommodating method is highly appropriate for phenols collecting from polluted water. A batch process was used: 50 ml of 50 mg/L of each phenolic solutions at pH=8.0 with (zwitterionic buffer HEPES), was introduced to 100 mg 4-AAP sensor, then the mixture was submitted to filtration and the remaining phenols specified by Gas Chromatography in the supernatant solution. The sorbent capacity was 151.05, 82.03 and 83.47mg of phenol, m-cresol, o-cresol and quinol per gram of 4-AAP sensor, respectively with a correlation coefficient range of 0.998-0.999.