Cristovao Ramiro Belo

• PhD Student at Universidade de Évora

This work presents a first approach concerning the valorization of Tectona Grandis tree by-products, from East Timor through their transformation into high activated carbon (AC) by chemical activation with KOH and K2CO3. The better ACs, Teak-KOH-1-1-700 and Teak-K2CO3-1-2-700, presented a high ABET (995 and 1132 m²·g⁻¹) and micropore volume (0.43 a...

Highly efficient low cost carbon adsorbents were prepared from synthetic polymers mixture, such as polyethyleneterephthalate (PET) and polyacrylonitrile (PAN), by chemical activation, with potassium hydroxide or potassium carbonate, at 1073 K. Mixtures polymers carbon activation is more effective with KOH than with K2CO3, since the apparent surface...

The university lecturer certification and accreditation ( was elaborated in Portuguese language, as the official language in East Timor)

The mixture of natural and synthetic polymers for the production of activated for the pesticides removals in liquid phase

Commercial activated carbons used in winery area

The utilization of activated carbon through sawdust of Teak Tree (Tectona grandis) for pesticides removal from Liquid phase

The use of Teak sawdust wastes for the production of activated carbon

Production of activated carbon through synthetic polymers blend by chemical activation with KOH

The usage of Teak sawdust for the production of activated carbons through physical activation for the pesticides removals

This work presents a first approach concerning the use of Tectona Grandis tree sawdust (from East Timor) for high activated carbon production, by physical activation with carbon dioxide at different temperatures. The activated carbons (AC) obtained exhibit a well-developed porous structure with a pore size distribution varying from micro to mesopor...

Valorization of Teak sawdust by the prduction of activated carbon for the pesticides removals in liquid phase ...

The poster is about the surface and materials chemistry sciences

For the activated carbon (AC) production, we used the most common industrial and consumer solid waste, namely polyethyleneterephthalate (PET), alone or blended with other synthetic polymer such polyacrylonitrile (PAN). By mixing PET, as a recycled raw material, with PAN, an improvement in the yield of the AC production was found and the basic chara...

Piper betle is a species growing in South East Asia, where its leaves are economically and medicinally important. To screen the highest possible number of volatile and semivolatile components, the leaves were subjected to headspace solid-phase microextraction, hydrodistillation and Soxhlet extraction, prior to analysis by GC/MS. Fifty compounds (id...