Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Carlos Roberto Bellato"'
Autor:
Brunela Pereira da Silva, Lorenna Almeida Botelho, Abelardo Barreto de Mendonça Neto, Rita de Cássia Superbi de Sousa, Carlos Roberto Bellato, Deusanilde de Jesus Silva
Publikováno v:
The Journal of Engineering and Exact Sciences, Vol 2, Iss 3, Pp 132-145 (2016)
Water used in industrial processes requires a special treatment to achieve a high level of quality. In this context, the aim of this study was to investigate the use of cellulosic materials for water softening, such as microcrystalline cellulose (101
Externí odkaz:
https://doaj.org/article/80aff2bc513e4240bd16abd232b699d0
Autor:
Odilaine Inácio de Carvalho Damasceno, César Reis, Efraim Lázaro Reis, Carlos Roberto Bellato, Paulo Henrique Fidêncio
Publikováno v:
Revista Brasileira de Ciência do Solo, Vol 39, Iss 6, Pp 1786-1795 (2015)
ABSTRACT Heavy metals contained in electronic waste, if discarded improperly, can become bioavailable after vermicomposting, posing a risk to the environment. Small-scale vermicomposting experiments were carried out with printed circuit boards (PCBs)
Externí odkaz:
https://doaj.org/article/4e6653df9ee14172b76c044c2e689d26
Autor:
Thiago Vinícius Toledo, Carlos Roberto Bellato, Kenia Dias Pessoa, Maurício Paulo Ferreira Fontes
Publikováno v:
Química Nova, Vol 36, Iss 3, Pp 419-425 (2013)
In this work, hydrotalcite, a layered double hydroxide, had its ion exchange properties combined with the magnetic properties of iron oxide to produce a magnetic adsorbent, HT-Fe 500. These magnetic composites can be used as adsorbents for anionic co
Externí odkaz:
https://doaj.org/article/2340aa4821854c8db5d5531fc28a9082
Autor:
Thiago Vinícius Toledo, Carlos Roberto Bellato, Rafael Henrique do Rosário, José de Oliveira Marques Neto
Publikováno v:
Química Nova, Vol 34, Iss 4, Pp 561-567 (2011)
In this work, hydrotalcite, a layered double hydroxide, had its adsorption and ion exchange properties combined with the magnetic properties of iron oxide to produce a magnetic adsorbent, HT-Fe. The removal of As(V) by a HT-Fe adsorbent was evaluated
Externí odkaz:
https://doaj.org/article/279c3efe57694de0b610fe6f310e7a70
Autor:
Eduardo Vinícius Vieira Varejão, Carlos Roberto Bellato, Jaime Wilson Vargas de Mello, Maurício Paulo Ferreira Fontes
Publikováno v:
Revista Brasileira de Ciência do Solo, Vol 33, Iss 4, Pp 875-883 (2009)
A determinação de As por espectrometria de absorção atômica com geração de hidretos (HG-AAS) constitui um método simples, sensível, preciso e de baixo custo. Entretanto, essa técnica requer a pré-redução das espécies de As(V), o que se
Externí odkaz:
https://doaj.org/article/ae44afe186fc4ecb8831c8c111a93ea4
Publikováno v:
Química Nova, Vol 32, Iss 6, Pp 1471-1476 (2009)
The oxidation of arsenic (As(III) to As(V)) in water samples was performed by heterogeneous photocatalysis using a TiO2 film immobilized inside a photochemical reactor. After oxidation, As(V) was removed from the water samples by coprecipitation with
Externí odkaz:
https://doaj.org/article/db006561a07940d88569a87e0dd226ac
Publikováno v:
Química Nova, Vol 29, Iss 4, Pp 761-764 (2006)
This article deals with synthesis and reactivity of complexes with triphenylstibine (SbPh3) as the ligand. A comparative study of analogous complexes of triphenylphosphine (PPh3) and triphenylarsine (AsPh3) with platinum in the oxidation states zero,
Externí odkaz:
https://doaj.org/article/5ee100bfef4040cba6614a6d799dd797
Publikováno v:
Química Nova, Vol 24, Iss 1, Pp 18-23 (2001)
Externí odkaz:
https://doaj.org/article/1c7c1889931042f48982ba665e80f9ce
Autor:
Efraim Lázaro Reis, Maria Isabel Cristina Batista Mayrink, Carlos Roberto Bellato, César Reis
Publikováno v:
The Journal of Engineering and Exact Sciences. 9:15347-01e
Utilizando-se a técnica de voltametria de redissolução anódica com pulso diferencial, foram determinados em uma primeira etapa os íons metálicos Cd(II), Pb(II), Zn(II) e Cu(II), em amostra de sedimento certificado pelo “National Institute of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8a058f58e77e7246e870776c7c3fdc8
https://doi.org/10.18540/jcecvl9iss2pp15347-01e
https://doi.org/10.18540/jcecvl9iss2pp15347-01e
Autor:
Maurício Paulo Ferreira Fontes, Hedinaldo Narciso Lima, Carlos Roberto Bellato, José de Oliveira Marques Neto, Scott Fendorf, Matheus da Silva Ferreira
Publikováno v:
Environmental pollution (Barking, Essex : 1987). 277
Rare earth elements (REEs) are generally defined as a homogenous group of elements with similar physical-chemical properties, encompassing Y and Sc and the lanthanides elements series. Natural REEs contents in soils depend on the parent material, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d45ffc0370d717ff8a69438845e6016
https://pubmed.ncbi.nlm.nih.gov/33640811
https://pubmed.ncbi.nlm.nih.gov/33640811