M.N. Capela

M.N. Capela
University of Aveiro | UA · Department of Materials and Ceramics Engineering

About

13
Publications
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112
Citations
Introduction
M.N. Capela currently works at the Department of Materials and Ceramic Engineering, CICECO - Aveiro Institute of Materials, University of Aveiro. M.N. does research in Materials Engineering.

Publications

Publications (13)
Article
In this work we developed improved bioactive glasses and glass-ceramics for biomedical applications, investigating their in vitro bioactivity, biocompatibility and antibacterial properties against E-Coli. A melt-quenched bioactive glass of the SiO2-CaO-P2O5-MgO system was modified with the addition of 1 and 2 mol% Ag2O and the 1 mol% Ag2O-containin...
Article
Red mud (RM), a highly alkaline iron oxide rich sludge obtained during the production of alumina, was treated to work as a coloring agent for ceramic glazes. The approach aims the valorization of this residue, adding environmental and economic value. RM was sintered at different temperatures (1100 °C, 1150 °C, 1200 °C, 1250 °C, 1300 °C and 1350 °C)...
Conference Paper
Full-text available
Citation: Capela, M.N.; Vieira, I.; Tarelho, L.A.C.; Seabra, M.P.; Labrincha, J.A. Preliminary Assessment of Biomass Fly Ash as a Partial Aggregate Replacement in a Screed Mortar Formulation. Mater. Proc. 2022, 8, 25. https://doi. Biomass fly ash (BFA) is an inorganic solid waste produced in biomass-fired power plants. Due to the adopted coal phase...
Conference Paper
Full-text available
Citation: Capela, M.N.; Cesconeto, F.R.; Tarelho, L.A.C.; Seabra, M.P.; Labrincha, J.A. Green Processing of Porous Biomass Fly Ash Monoliths with Methylene Blue Adsorption Capacity. Mater. Proc. 2022, 8, 24. Water contamination by dyes is a major worldwide issue. Intensive research has therefore been carried out to develop new materials for wastewa...
Article
Full-text available
The use of methylene blue (MB) by several industries generates contaminated industrial wastewaters that must be purified before discharge into the environment. Its removal can be achieved by adsorption, and low-cost and easily available materials should be used as adsorbents. Biomass fly ash (BFA) generated from biomass combustion, for heat and pow...
Article
Spent coffee ground, the residue obtained from the brewing process, is the primary unavoidable (inedible) waste from the coffee consumption. As coffee production and beverage consumption are increasing worldwide, a more sustainable waste management is required since the usual disposal in landfill is a liability to both humans and the environment. T...
Article
Full-text available
Substitute Ordinary Portland Cement (OPC) by biomass fly ash (BFA) reduce the environmental impact produced by cement-based materials, and at the same time, decreased the economic and environmental burden associated with the landfilling of this waste. This study aims to evaluate the recycling of BFA as supplementary cementitious materials (SCMs) in...
Article
Full-text available
Ordinary Portland Cement is the most widely used binder in the construction sector; however, a very high carbon footprint is associated with its production process. Consequently, more sustainable alternative construction materials are being investigated, namely, one-part alkali activated materials (AAMs). In this work, waste-based one-part AAMs bin...
Article
Full-text available
The use of wastes, some of them hazards, as raw materials of ceramic pigments has been a way to diminish their environmental impact, to economically valorize them, and to face the depletion of virgin raw materials. In this work were prepared pigments having in their composition only industrial wastes: Cr/Ni electroplating (ES), and sludges from the...
Poster
Full-text available
Treatment of small defects usually involves a new firing to repair small defects with only a few mm2, representing a significant increase in costs productions. Several approaches have been made using laser technology to solve microcracks formation ascribed to thermal stresses generated by the high-temperature gradients. The present alternative trie...
Article
The perception of industrial waste has changed, in the last decades, from an economic and environmental problem to a potential raw material. In this work, the synthesis of a stable pigment was prepared by combining two hazardous and unexplored wastes: red mud (RM, rich in Fe) and electroplating sludge (ES, rich in Ni/Cr). The wastes were mixed in d...
Article
In this investigation, an innovative and sustainable solution for glass fibre off-cuts is proposed. For the first time, glass fibre fabrics (non-woven mat) produced during wind turbine blade manufacture were used to produce reinforced inorganic polymer composites. The influence of fabric amount on the composites’ microstructure, water absorption, s...

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