5 documents found, page 1 of 1
Hybrid multi-core shell magnetic nanoparticles for wet peroxide oxidation of pa...
Silva, Adriano S.; Roman, Fernanda; Dias, Arnaldo; Díaz de Tuesta, Jose Luis; Narcizo, Alexandre; Silva, Ana P. F.; Çaha, Ihsan; Deepak, Francis LeonardClean water availability is becoming a matter of global concern in the last decades. The responsible entities for wastewater treatment do not have the proper facilities to deal with a wide range of pollutants. Special attention should be given to emerging contaminants, whose presence in water bodies may cause adverse effects on the aquatic ecosystem and human health. Most studies in the literature do not consid...
Simultaneous removal of o-and p-nitrophenol from contaminated water by wet pero...
Dias, Arnaldo; Silva, Adriano S.; Silva, Ana P. F.; Roman, Fernanda; Díaz de Tuesta, Jose Luis; Oliveira, Jéssica; Ferrari, Ana M.; Lenzi, Giane G.Groundwater is the most common source of drinking water worldwide and is currently facing contamination problems with the discharge of pollutants into aquatic systems through different means, namely through municipal, industrial and agricultural activities. Contaminants, such as herbicides, pharmaceuticals, phenolic compounds and personal care products are not removed by conventional treatments from wastewater ...
Wet peroxide oxidation of paracetamol using carbon-coated spinel ferrite nanopa...
Gomes, Helder; Dias, Arnaldo; Silva, Adriano S.; Roman, Fernanda; Silva, Ana P. F.; Lima, Ana M.F.; Díaz de Tuesta, Jose LuisIn this study, carbon-based magnetic nanoparticles (MNPs) have been prepared by sucessive sol-gel method for core bare preparation and carbon coated through polymerization of phloroglucinol/glyoxylic acid, which are greener carbon precursors than the conventional method of resorcinol/formaldehyde (R/F), since formaldehyde is known to be a carcinogenic reagent. The bare core (CoFe2O4) and the carbon-coated MNPs ...
Hybrid magnetic nanoparticles for wet peroxide oxidation of paracetamol
Dias, Arnaldo; Silva, Adriano S.; Roman, Fernanda; Silva, Ana P. F.; Díaz de Tuesta, Jose Luis; Lima, Ana Maria; Gomes, HelderA performance de nanopartículas de ferrite de cobalto, ferrite de cobalto recoberta por carbono preparada por uma metodologia tradicional e ferrite de cobalto preparada por metodologia verde foi avaliada na remoção de paracetamol (PCM), escolhido como poluente modelo, por um processo de oxidação húmida com peróxido de hidrogénio (CWPO). O núcelo magnético foi sintetizado por sol-gel, e na metodologia tradiciona...
A mobile application for orienteering events in physical education subjects
Metrôlho, J.C.M.M.; Ribeiro, Fernando Reinaldo; Fonseca, Eduardo; Machás, Luis; Dias, ArnaldoPhysical education in schools aims to promote physical activity, socialisation, and interaction among students. Today, it is considered a very important subject for development and health. It encompasses several sports modalities, always with the purpose of promoting physical activity and motor development of those who practice. Orienteering is one of the modalities that has recently gained fame. Orienteering i...