Results 21 to 30 of about 54,666 (197)

Biosorption of Lead (Pb) Metal using Immobilized Pseudomonas putida: Kinetic Analysis and Langmuir-Freundlich Adsorption Isotherm

Berkala Sainstek
Heavy metal Pb(II) contamination in industrial wastewater requires effective and environmentally friendly remediation technologies. This research aims to evaluate biosorbent performance for Pb(II) removal through kinetic and adsorption isotherm analysis.
Khairunnisa, Rahmahtriananda Faradilla, Ahmad Moh. Nur   +2 more
doaj   +1 more source

Adsorção de selênio em latossolos Selenium adsorption in oxisols

Revista Brasileira de Ciência do Solo, 2008
A retenção de Se pelos colóides do solo constitui importante processo para a manutenção da sanidade ambiental. A informação sobre a adsorção de Se em solos altamente intemperizados é restrita e existem poucos padrões quantitativos disponíveis para a ...
Ernesto Rinaldi Mouta, Wanderley José de Melo, Marcio Roberto Soares, Luis Reynaldo Ferracciú Alleoni, José Carlos Casagrande   +4 more
doaj   +1 more source

Absorption of Cu(II) and Zn(II) from Aqueous Solutions onto Biochars Derived from Apple Tree Branches

Energies, 2020
The aim of this study was to investigate the adsorption of Cu(II) and Zn(II) onto apple tree branches biochar (BC) produced at 300, 400, 500 and 600 °C (BC300, BC400, BC500, and BC600), respectively. The effect of adsorbent dosage, pH value, contact time,
Shixiang Zhao, Na Ta, Xudong Wang
doaj   +1 more source

Polyvinyl Alcohol Assisted Iron–Zinc Nanocomposite for Enhanced Optimized Rapid Removal of Malachite Green Dye

Nanomaterials, 2023
Eliminating hazardous contaminants is a necessity for maintaining a healthy environment on Earth. This work used a sustainable method to create Iron–Zinc nanocomposites with polyvinyl alcohol assistance.
Muhammad Saad, Hajira Tahir, Seher Mustafa, Osama A. Attala, Waleed A. El-Saoud, Kamal A. Attia, Wessam M. Filfilan, Jahan Zeb   +7 more
doaj   +1 more source

Arundo donax L. as a low-cost and promising biosorbent for the removal of crystal violet from aqueous media: kinetic, isotherm and thermodynamic investigations [PDF]

Chemical Review and Letters, 2019
In the present study, Arundo donax L was used as a low-cost biosorbent for the uptake of basic dye crystal violet (CV) from aqueous media. Systematic batch mode studies of adsorption of crystal violet (CV) on Arundo donax were carried out as a function ...
Fouad Krika, Abderrezak Krika, Ahmed Azizi   +2 more
doaj   +1 more source

Polyvinylpolypyrrolidone Immobilized Cu, Cd and Zn in Soils and Reduced Their Uptake by Oilseed Rape

Agronomy
Organic amendments application has been proposed as an efficient method for remediation of heavy metals-contaminated soils. This study evaluated the performance of the water-insoluble organic material polyvinylpolypyrrolidone on decontaminating water and
Yiliu Wang, Diedrich Steffens, Yunsheng Jia, Huoyan Wang   +3 more
doaj   +1 more source

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

FEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source

Blood RNA Biomarker Signatures for Early Diagnosis and Prognosis in Ischemic and Hemorrhagic Stroke: The IBIS‐CT1 Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To evaluate the expression of nine blood RNA biomarkers in a clinical trial based on genes previously identified in an experimental monkey model of stroke for diagnosis feasibility and prognostication. Methods IBIS‐CT1 was a prospective longitudinal study enrolling patients with ischemic stroke (IS) or intracerebral hemorrhage (ICH ...
Salomé Retailleau, Marie Bruguet, Irina Viakhireva‐Dovganyuk, François‐Mathias Merrien, Denis Marechal, Aurore Jourdain, Philippe Goas, Jordan Coris, Julien Asselineau, Maëlys Consigny, Gérald Le Gac, Serge Timsit   +11 more
wiley   +1 more source

Inverse gas chromatography of chromia. Part II. Finite surface coverage [PDF]

Journal of the Serbian Chemical Society, 2002
The interactions of n-hexane, benzene, chloroform, and tetrahydrofuran with dried (amorphous) chromia (I) and chromia heated at 1073 K (crystalline) (II), both obtained from a colloidal dispersion, and a commercially available chromia (III) were studied ...
LJ. V. RAJAKOVIC, S. K. MILONJIC, A. E. ONJIA   +2 more
doaj  

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source