Results 31 to 40 of about 6,141 (183)

Z‐Scheme BiOCl‐Based Photocatalysts: Recent Advances in Designing, Structural Engineering, Formation Mechanisms, and High Performance Photocatalytic Environmental Remediation

open access: yesEcoEnergy, EarlyView.
This review deals with the recent advancements in design and engineering of BiOCl‐based Z‐scheme photocatalysts with emphasis on tailoring of structural, optoelectronic properties and heterojunction assembly for environmental applications including photodegradation of industrial organic waste, pharmaceuticals, pesticides, herbicides, toxic heavy metals,
Sakshi Sharma   +7 more
wiley   +1 more source

Hybrid Nano-filtration and Micro-filtration Pilot Processes for the Removal of Chromium from Water [PDF]

open access: yesآب و فاضلاب, 2018
Heavy metal hexavalent chromium is known as a highly toxic compound and based on World Health Organization standards in concentrations greater than 50 micrograms per liter would lead to diseases such as allergic reactions, skin cancer, lung cancer ...
Mehdi Kargar, Ghasem Zolfaghari
doaj   +1 more source

Cobalt‐Free Single‐Crystal Cathodes for Next‐Generation Lithium‐Ion Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Cobalt‐free single‐crystal cathodes enhance lithium‐ion battery stability by mitigating fracture, degradation, and phase transitions. This review highlights Ni‐rich layered, Li‐Mn‐rich, spinel, and olivine frameworks, synthesis strategies enabling morphology and defect control, and structural tuning via doping and coatings, offering pathways toward ...
Srinivasan Alagar   +5 more
wiley   +1 more source

Reduction of Cr(VI) compounds by the immobilized cells of sulfate-reducing bacteria Desulfomicrobium sp. CrR3

open access: yesБіологічні студії, 2020
Immobilization of microorganisms is an effective method of intensification of wastewater purification form chromate-containing compounds. This paper presents a method of sulfate-reducing bacteria immobilization in agar developed in order to determine the
T. B. Peretyatko   +4 more
doaj   +1 more source

Rare Earth 3‐Hydroxyphenylacetate Complexes: Synthesis, Structural Characterization, and Surprising Improved Anticorrosion Performance on Mild Steel

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
The rare earth (RE) aqua complexes using 3‐hydroxyphenylacetate ligand were prepared using the corresponding RE salt and the sodium salt of the ligand by a salt metathesis reaction. Two different structural motifs of the complexes, {[La(3hpa)3(H2O)] × 2H2O}n, and [RE(3hpa)3(H2O)]n (RE = Ce (2), Nd (3), Gd (4), Dy (5), Y (6), Er (7), Yb (8)) were ...
Naveena Y. Salpadoru Thuppahige   +5 more
wiley   +1 more source

Levels of exposure to hexavalent chromium and occupational health risks among workers engaged in chromate salt production or chromium plating operations

open access: yesZhiye weisheng yu yingji jiuyuan
Objective To investigate the exposure levels and occupational health risks of workers exposed to hexavalent chromium compounds in the chromate production and chrome plating industries in China under currently accessible economic and technological ...
ZHU Yong
doaj   +1 more source

Photocatalytic Removal of Hexavalet Chromium and Divalent Nickel fromAqueous Solution by UV Irradiation in the Presence of Titanium Dioxide Vanoparticles [PDF]

open access: yesسلامت و محیط, 2010
"n "n "nBackgrounds and Objectives: Industrial wastewater included the heavy metal is one of the important sources of environmental pollution. Hexavalent chromiumand divalent nickel are founded in plating wastewater which is harmful for human health and ...
M.R Samarghandi   +5 more
doaj  

Exploring the Chemical Complexity and Toxicological Behaviour of Semi‐permanent Make‐Up Pigments: A Systematic Review

open access: yesJournal of Applied Toxicology, EarlyView.
ABSTRACT Semi‐permanent make‐up (SPMU), or micropigmentation, involves implanting pigments into the dermal layer of the skin for cosmetic enhancement. Unlike topical cosmetics, which are rapidly cleared from the body, SPMU pigments persist in living tissues, raising unique toxicological considerations.
T. A. N. Kaye   +3 more
wiley   +1 more source

The Electrochemical Treatment of Toxic Hexavalent Chromium from Industrial Effluents using Rotating Cylinder Electrode Cell

open access: yesInternational Journal of Electrochemical Science, 2009
This paper investigates a method to electro reduce toxic hexavelent chromium to trivalent state using rotating disc electrode (RDE) and rotating cylinder electrode (RCE) cell.
E.M. Elsayed, A.E. Saba
doaj   +1 more source

The survey of chromium (VI) Adsorption from aqueous solutions by powder and activated Carbon Pine Cones [PDF]

open access: yesPizhūhish dar Bihdāsht-i Muḥīṭ., 2017
Background& objective: The hexavalent chromium is a toxic and water-soluble heavy metal that is absorbed and stored through the digestive system and through the skin in the human body. That amount is exceeded in drinking water in Birjand.
Fahimeh Sharifan   +2 more
doaj   +1 more source

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