Results 61 to 70 of about 2,730 (185)

Investigation of adsorption of Chromium & Copper ions on TEOS xerogel [PDF]

open access: yesشیمی کاربردی روز, 2017
In this research, TEOS xerogel was produced by sol-gel method and the best adsorbents for removal of heavy metals were chosen by test on this xerogel. TEOS xerogel was used for adsorption of Cr(III) and Cu(II). Various parameters such as contact time, pH,
Ali Aslrousta, Khamal haghbeen
doaj   +1 more source

Molybdate Recovery by Adsorption onto Silica Matrix and Iron Oxide Based Composites

open access: yesGels, 2022
Aggressive industrial development over the last century involved different heavy metals being used, including high quantities of molybdenum, which need to be treated before discharge in industrial waters.
Florin Matusoiu   +6 more
doaj   +1 more source

Electrospun fibrous sorbents for the removal of uranium and americium from aqueous media

open access: yesPolymer International, EarlyView.
Polymethacrylate‐based electrospun microfibers with tertiary amino functionalities are evaluated as adsorbents for U‐232 and Am‐241 in both simplified and complex (seawater) water matrices, highlighting their ability for efficient actinide removal. Abstract Polymethacrylate‐based electrospun microfibers containing tertiary amino functionalities were ...
Andreas Hadjianastasi   +4 more
wiley   +1 more source

Responsive nitric oxide‐releasing antibacterial materials for biofilm‐associated infections: Mechanisms, design strategies, and applications

open access: yesResponsive Materials, EarlyView.
This review summarizes the recent progress in responsive NO‐releasing materials and their applications in biofilm‐associated infectious diseases. The design principles and response mechanisms are given to provide inspiration toward the future development of multi‐responsive NO‐releasing materials.
Wenyue Sun   +8 more
wiley   +1 more source

Mixed TiO2–SiO2 thin coatings for selective adsorption and sunlight‐powered photodegradation of cationic pollutants

open access: yesResponsive Materials, EarlyView.
Environmental pollution and water scarcity demand innovative purification methods. This study presents a sol‐gel approach to fabricate mixed silica–titania thin films joining photocatalytic activity with selective sorption capability. The films exhibit higher surface area, enhanced degradation of cationic and improved performance over bare titania ...
Andrea Lanfranchi   +13 more
wiley   +1 more source

POROUS ANODIC ALUMINA MEMBRANES WITH XEROGEL FOR LUMINESCENCE AND PHOTOCATALYSIS

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2019
The method of synthesis of porous anodic alumina membrane with amorphous xerogel corresponding to chemical content of SrTiO3 is reported. The membrane was prepared in oxalic acid electrolyte and revealed intensive blue photoluminescence with a broad band
N. V. Gaponenko
doaj  

Process Variable Optimization in the Manufacture of Resorcinol–Formaldehyde Gel Materials

open access: yesGels, 2018
Influence of process parameters of resorcinol–formaldehyde xerogel manufacture on final gel structure was studied, including solids content, preparation/drying temperature, solvent exchange, and drying method.
Martin Prostredný   +3 more
doaj   +1 more source

Time‐resolved synchrotron X‐ray total scattering of alkali‐activated materials with high and low calcium contents

open access: yesJournal of Synchrotron Radiation, EarlyView.
Synchrotron in situ high‐energy X‐ray total scattering/pair distribution function (PDF) analysis quantifies the time‐resolved structural evolution of high and low calcium alkali‐activated binders, with PDF peak evolution tracking reaction progress and correlating with calorimetry (R2 > 0.97).
Hyeonseok Jee, Nishant Garg
wiley   +1 more source

Engineered surface strategies to manage dental implant‐related infections

open access: yesPeriodontology 2000, EarlyView.
Abstract When exposed to the oral environment, dental implants, like natural surfaces, become substrates for microbial adhesion and accumulation, often leading to implant‐related infections—one of the main causes of implant failure. These failures impose significant costs on patients, clinicians, and healthcare systems.
João Gabriel S. Souza   +7 more
wiley   +1 more source

Discriminating Bacteria With Functionalised Nanoporous Xerogels

open access: yesProcedia Chemistry, 2012
AbstractA new colorimetric and easy-to-use solid sensor for the detection of indole-producing bacteria is described. The sensor is a nanoporous matrix with tailored pores doped with a reactant, DMACA. The sensor turns rapidly from transparent to green-blue when exposed to metabolic indole coming from bacteria cultures, both in liquid and gas phases. An
Crunaire, S.   +6 more
openaire   +4 more sources

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