Dr. Sandro Luiz dos Santos
Pharmacy Department
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Academic Career Length
12Years (2015-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications1 September 2020 in Electrochimica Acta
Journal Article
CLCamila D. Lima
Camila D. Lima
RCRosa A.S. Couto
Rosa A.S. Couto
Luciano ArantesPMPablo A. Marinho
Pablo A. Marinho
Dilton Martins PimentelWSWallans T.P. dos Santos
Wallans T.P. dos Santos
+4
21 January 2021 in Scientific Reports
Journal Article
Sandro Luiz dos SantosMFMilton de S. Freitas
Milton de S. Freitas
WSWallans T. P. dos Santos
Wallans T. P. dos Santos
DNDavid Lee Nelson
David Lee Nelson
SKStanlei I. Klein
Stanlei I. Klein
AWAlexandre P. Wentz
Alexandre P. Wentz
+3
SiO2-SO3H, with a surface area of 115 m2/g, pore volumes of 0.38 cm3g−1 and 1.32 mmol H+/g, was used as a 10% w/w catalyst for the preparation of 5-hydroxymethyl-2-furfural (HMF) from fructose. A conversion of 100% was achieved in a microwave reactor during 10 min at 150 °C in DMSO, with 100% selectivity for HMF, at a molar ratio of fructose: DMSO equal to 1:56. The catalyst could be re-used three times.
1 October 2021 in Sensors and Actuators B: Chemical
Journal Article
Dilton Martins PimentelLuciano ArantesLSLuan M. Santos
Luan M. Santos
KSKarla A.O. Souza
Karla A.O. Souza
RVRodrigo Verly
Rodrigo VerlyWSWallans T.P. dos Santos
Wallans T.P. dos Santos +1
25 May 2020 in Biomass Conversion and Biorefinery
Journal Article
Sandro Luiz dos SantosMFMilton S. de Freitas
Milton S. de FreitasWSWallans T. P. dos Santos
Wallans T. P. dos SantosDNDavid Lee Nelson
David Lee NelsonMFMaria Betânia de Freitas-Marques
Maria Betânia de Freitas-MarquesABAdriano C. Moraes Baroni
Adriano C. Moraes Baroni +7
1 August 2015 in Catalysis Communications
Journal Article
Sandro Luiz dos SantosMOMyrlene Ottone
Myrlene Ottone
MSMaisa C. Santos
Maisa C. Santos
GJGelson C. Junior
Gelson C. Junior
CLCamila D. Lima
Camila D. Lima
SKStanlei I. Klein
Stanlei I. Klein
+2
Journal Article
Sandro Luiz dos SantosARAdeline C. Pereira Rocha
Adeline C. Pereira RochaDNDavid Lee Nelson
David Lee NelsonMFMilton S. de Freitas
Milton S. de FreitasAMAntônio A. P. Fulgêncio Mestre
Antônio A. P. Fulgêncio MestreRRRegiane D. Fernandes Rios
Regiane D. Fernandes Rios +7
SiO2-SO3H, with a surface area of 115 m2·g−1, pore volumes of 0.38 cm3·g−1 and 1.32 mmol H+/g, was used as a transesterification catalyst. Triglycerides of waste cooking oil reacted with methanol in refluxing toluene to yield mixtures of diglycerides, monoglycerides and fatty acid methyl esters (FAMEs) in the presence of 20% (w/w) catalyst/oil using the hydrophilic sulfonated silica (SiO2-SO3H) catalyst alone or with the addition of 10% (w/w) co-catalyst/oil [(Bun4N)(BF4) or Aliquat 336]. The addition of the ammonium salts to the catalyst lead to a decrease in the amounts of diglycerides in the products, but the concentrations of monoglycerides increased. Mixtures of (Bun4N)(BF4)/catalyst were superior to catalyst alone or Aliquat 336/catalyst for promoting the production of mixtures with high concentrations of FAMEs. The same experiments were repeated using DMSO as the solvent. The use of the more polar solvent resulted in excellent conversion of the triglycerides to FAME esters with all three-catalyst media. A simplified mechanism is presented to account for the experimental results.
About Me
He graduated with a Bachelor of Science Degree in Chemistry from the University of São Paulo (1995), a Master of Science Degree in Chemistry from the University of São Paulo (1998), a Ph.D. in Chemistry from the University of São Paulo (2003), and a Post-Doctorate Degree in Mass Spectrometry at the University of São Paulo (2012-2013). He is currently a full professor at the Federal University of Vales do Jequitinhonha and Mucuri (UFVJM) and a permanent professor of postgraduate programs in pharmacy, chemistry, and biofuels. He coordinated the postgraduate program in biofuels (PPGBiocomb) at UFVJM/UFU from 2016 to 2018. He coordinates the postgraduate program in pharmaceutical sciences (PPGCiFarm) at the Federal University of Vales do Jequitinhonha and Mucuri (2018 to present). He has experience in chemistry, focusing on organic synthesis, acting on the following subjects: biodiesel synthesis, additive synthesis for biofuels, drug synthesis (development of new synthetic methods for the preparation of bioactive substances, such as anticancer); all of these processes are carried out using solid or heterogeneous catalysts.