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Chromium (VI) removal from water by means of adsorption-reduction at the surface of amino-functionalized MCM-41 sorbents
(Elsevier Inc, 2016-10)
A first study that demonstrates the capability of the amino-functionalized MCM-41 sorbents to reduce Cr(VI) to the less toxic trivalent state is presented. To achieve this aim two mesoporous ordered silica with MCM-41 pores ...
Estudo da sorção do antibiótico ciprofloxacina em partículas de magnetita modificada com sílica e surfactante CTAB
(Universidade Tecnológica Federal do ParanáMedianeiraBrasilLicenciatura em QuímicaUTFPR, 2018-11-27)
The occurrence of emerging microcontaminants has been observed in several environmental compartments as result of anthropogenic activities. Pharmaceutical substances, such as residual antimicrobials, represent potential ...
Application of Natural Organic Residues as Adsorbents to Remove Lead from Waters
(2019-08-01)
The contamination of the environment by potentially toxic metals is highlighted by possible impacts of their high availability. Thus, the development of alternative absorbents that can be used in the remediation of ...
Interaction Study Between Humin and Phosphate: Possible Environmental Remediation for Domestic Wastewater
(2017-01-01)
The increase in demand for food due to the rapid population growth in recent years has raised the use of fertilizers, particularly phosphate salts. This fact has contributed to the excess amount of phosphorus species in ...
Estudo de adsorção de lipase de Candida rugosa em palha de milho e óxido de nióbio para aplicação em reação de hidrólise
(Universidade Tecnológica Federal do ParanáPato BrancoBrasilPrograma de Pós-Graduação em Tecnologia de Processos Químicos e BioquímicosUTFPR, 2019-03-13)
As the technology advances, it has become increasingly possible to modify processes, considering the coexistence of the three pillars of sustainability: environment, economy and society; and the increase in the enzymatic ...
Effect of pH on the Clarification of Stevia rebaudiana Bertoni Extract Using Alginate Beads
(Multi-science Publ Co Ltd, 2010-01-01)
Stevia rebaudiana Bertoni is plant used for producing a natural sweetener. After extraction from leaves, stevia extract is dark in colour and must be clarified for better acceptance by consumers. Adsorption processes are ...
Photosynthesis of H-2 and its storage on the Bandgap Engineered Mesoporous (Ni2+/Ni3+)O @ TiO2 heterostructure
(Elsevier, 2020)
A noble-metal free and surface defect-induced mesoporous mixed valent NiO decorated TiO2 heterostructure with tuned bandgap has been successfully prepared. Its outstanding visible-light driven hydrogen evolution and its ...
Síntese e caracterização de aluminofosfato impregnado com molibdênio/zinco visando a dessulfurização por adsorção
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em Engenharia QuímicaPesquisa e Desenvolvimento de Tecnologias Regionais, 2011-10-27)
Discussions about pollution caused by vehicles emission are old and have been developed
along the years. The search for cleaner technologies and frequent weather alterations have
been inducing industries and government ...
Remoção de melanoidinas aplicando carvão ativado produzido a partir de torta de nabo forrageiro carbonizado em forno de micro-ondas
(Universidade Federal de Minas GeraisUFMG, 2013-04-26)
The removal of melanoidins from aqueous solutions is the objective of this work. The molecules, also called Maillard Reaction Products, were synthesized and characterized in a glucoseglycine system. The chemical stability ...
Adsorption of methylene blue on raw and MTZ/imogolite hybrid surfaces: Effect of concentration and calorimetric investigation
(Elsevier Science BvAmsterdamHolanda, 2010)