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Optimization of photoluminescence of Eu³⁺ doped YVO<inf>4</inf> nano...

A detailed investigation of the europium-doped yttrium orthovanadate (YVO4:Eu3+) phosphorus prepared by fast and facile microwave synthesis was undertaken. The phase purity, morphology, particle distribution analysis, and photoluminescence were all thoroughly examined. The photoluminescence (PL) properties of the as-synthesized YVO4:Eu3+ nanostructures depend greatly on the synthesis parameters. The PL intensit...

Layer formation, morphology and photoluminescent properties of ultrasonic spray...

In this work, we study the coating process and coating quality of photoluminescent particles deposited on a glass surface in terms of particle distribution and associated film continuity. The dispersion process of commercial ZnS:Mn particles and YVO4:Eu particles synthesized by microwave reactor in aqueous solutions onto solid surface was performed using an ultrasonic atomizer. Two methods of particle depositio...

Bacterial cellulose production: valorization of wastewater and life cycle asses...

Low-cost substrates, most from agro-industrial wastes, have increasingly been exploited as nutrient sources for the fermentation of bacterial cellulose (BC), an appealing approach from an economical and environmental point of view. However, these wastes carry a very high organic load, which, while advantageous for the fermentation, generate high organic load wastewaters as well, which require proper treatment b...

Life cycle assessment of bacterial cellulose production

Purpose: Bacterial cellulose (BC), obtained by fermentation, is an innovative and promising material with a broad spectrum of potential applications. Despite the increasing efforts towards its industrialization, a deeper understanding of the environmental impact related to the BC production process is still required. This work aimed at quantifying the environmental, health, and resource depletion impacts relate...

A circular approach for landfill leachate treatment: chemical precipitation wit...

ABSTRACT: The aim of this work was to study an integrated approach for landfill leachate remediation comprising chemical precipitation with biomass bottom ash as a pre-treatment to reduce color and turbidity followed by bioremediation through microalgae treatment for effluent disposal. Optimal pre-treatment conditions were determined through batch experiments and were found to be 160 g L-1 ash dose, 96 h of con...

Progress diseases in the city of São Paulo: the case of cardiorespiratory disea...

The central subject of this article is the historical study of the relationship established, in the 1940s and 1970s, between the city of São Paulo that was becoming metropolitan and for that purpose it was back to the construction of its industrial park and the consequences of this process in the life of its population, as well as the cooling of diseases. In this context, it is intended to point out how transfo...

Entre o particular e o geral: a constituição de uma “loucura negra” no Hospício...

História crítica da hipnose na psiquiatria da Faculdade de Medicina da Universi...

Das possibilidades de um conceito de saúde

O conceito de saúde na Saúde Coletiva: contribuições a partir da crítica social...