Agradecimentos: This work was supported by the Brazilian research agencies Fundação de Amparo à Pesquisa do Estado de São Paulo - FAPESP (proposals 2017/18574-4 and 2017/25983-8), Conselho Nacional de Desenvolvimento Científico e Tecnológico - CNPq (Grants 310774/2020-9 (AP), 304119/2019-9 (AS), and 302450/2017-3 (PAPN), and CNPEM/LNLS; Abstract: The surface composition of a (root 5 x root 5)-R26.6 degrees (Rt5...
Agradecimentos: This work was supported by FAPESP (grant numbers 2007/54829-5, 2007/08244-5), CNPq (grant numbers 482390/2012-3 and 308717/2012-0), and CAPES from Brazil. S.F. gratefully acknowledges FAPESP studentship 2012/16860-8. MJP is thankful for the funding provided by the FAPESP grant 2011/12566-3; Abstract: The coverage-dependent self-assembly of Nickel-tetraphenyl porphyins on Gold vicinal surfaces wa...
Agradecimentos: The authors acknowledge CNPq/MCTIC and CAPES (Capes/Cofecub Project 835/18) for their financial support, CITIUS Laboratorio de Rayos-X at the Universidad de Seville (Spain) for X-ray measurements, and CNPq for financial support in the form of research fellowships awarded to M.G. Fonseca (Grant 310921-2017-1). A. Menezes thanks CAPES for the PNPD fellowship (Grant 88882.317938/2019-01) and C. Oli...
Agradecimentos: The author are thankful for the financial support from Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) under the project numbers 2007/08244-5, 2007/54829-5, and 2017/18574-4 and from Conselho Nacional Científico e Tecnológico (CNPq) under the project numbers 424633/2018-3 and 304119/2019-9. N.H.R. thanks CNPq for the studentship support. L.H.d.L. thanks FAPESP for the studentship s...
Agradecimentos: The authors acknowledge the financial support provided by the São Paulo Research Foundation (FAPESP) (Grants N° 2018/10492-1, N° 2018/12035-7, N° 2017/10118-0, N° 2013/02762-5, N° 2019/03641-3 and N° 2018/16360-0) and by the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) (Grants N° 155550/2018-7 and N° 405543/2016-6). The authors are also grateful to TANAC S.A., which suppl...
Agradecimentos: This work has been supported by FAPESP (Grant Nos. 2016/21402-8, 2017/18574-4, 2007/54829-5, and 2007/08244-5), and CNPq (Grant No. 401826/2013-9). We thank LNLS for the beamtime and PGM beamline staff for the technical support. The authors are grateful to the Multiuser Central Facilities CEMs-UFABC for the computational support. DCM acknowledges UFABC for the studentship; Abstract: CVD graphene...
Agradecimentos: The author authors thank the financial supported by the "National Council for Scientific and Technological Development—CNPq" (Process 142364/2016-9) and "São Paulo Research Foundation—FAPESP" (Process no. 2018/20532-0). This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brasil (CAPES)—Finance Code 001. This work is financially supported by the "Nat...
Agradecimentos: The author thanks the financial supports from Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) under the project numbers 2007/08244-5, 2007/54829-5 and 2017/18574-4 and from Conselho Nacional Científico e Tecnológico (CNPq) under the project numbers 424633/2018-3, 304119/2019-9. RJPR and LHL thanks FAPESP for the studentship supports under project numbers 2018/08543-7 and 2016/21402...
Abstract: Synthetic samples of Ag(I) and Cu(II) cations were treated with acidified dealginated Sargassum filipendula, a modified waste from the thickener industry. Binary isotherms demonstrated a balance of simultaneous chemisorption and physisorption processes, pointing out to the presence of ion-exchange, chelation, and complexation mechanisms along with a preference for 2-plus-charged copper ions. Modified-...
Abstract: Organosulphur-modified biochar (BC) can be used as a green adsorbent for removing potentially toxic metal ions from aqueous solutions. In this study, sugarcane bagasse BCs (produced at pyrolysis temperatures from 300 to 700 degrees C) were modified in a single-step reaction with isothiocyanate. The performance and selectivity of raw and modified BCs for removing Cd2+, Ni2+, Pb2+ and Cr3+ from mono- an...