Results 21 to 30 of about 7,048 (217)

Thermal Behavior of a Natural Sepiolite from Northeastern Iran [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2013
Sepiolite deposits have been recently discovered in northeastern Iran. However, there is still little information about its physicochemical and mineralogical characteristics.
S. Hojati, H. Khademi
doaj   +2 more sources

The Incorporation of Indigo Molecules in Sepiolite Tunnels

open access: yesChemistry – A European Journal, 2009
AbstractEvidence for access of molecules the size of acetone or pyridine to the intracrystalline tunnels of nanofibre clay (sepiolite) has indicated formation of a new type of organic–inorganic nanocomposites. However, the introduction of larger molecules has been a recurring problem.
Ovarlez, Sonia   +5 more
openaire   +4 more sources

A Biotechnological Approach to Enzyme-Based Fertilisers: Immobilisation of Acid Phosphatases. [PDF]

open access: yesMicrob Biotechnol
The immobilization performance of M2‐32 varied with clay type, with palygorskite providing the highest catalytic reaction and stability. After immobilization, the enzyme preserved its broad pH and temperature tolerance. Neither the free nor the immobilized protein produced measurable changes in the rhizosphere microbial diversity.
Recio MI   +4 more
europepmc   +2 more sources

The Structure and Properties of Sepiolite with Partial Lattice Ions Substituted by Aluminum Ions

open access: yesFrontiers in Chemistry, 2021
Sepiolite was modified with Al3+ via hydrothermal reaction. The substitution amount of Al3+ for Mg2+ and Si4+ located at sepiolite lattice and the influence of substitution amount on the structure, specific surface area, and surface acidity of Al ...
Huiwen Chen   +5 more
doaj   +1 more source

Mechanical and thermal properties of sepiolite strengthened thermoplastic polymer nanocomposites: A comprehensive review

open access: yesAlexandria Engineering Journal, 2022
Sepiolite (Si12Mg8O30(OH,F)4].(H2O)4·8H2O) is a valuable filler with an enormous capacity to be used in thermoplastic composites, substituting costly reinforcing fillers, such as graphene and CNTs.
Zahid Iqbal Khan   +4 more
doaj   +1 more source

Phosphate fertilizers facilitated the Cd contaminated soil remediation by sepiolite: Cd mobilization, plant toxicity, and soil microbial community

open access: yesEcotoxicology and Environmental Safety, 2022
In-situ immobilization does not remove Cd from the contaminated soil. It is vital to investigate the effects of fertilizers on soil Cd mobility during remediation with amendments.
Rong Huang   +7 more
doaj   +1 more source

Sepiolite: A domestic mineral raw material for small and medium enterprises and environmental protection [PDF]

open access: yesHemijska Industrija, 2002
The paper presents the phases in the research of sepiolite - hydrated in fibrous magnesium silicate, and in the development of different products based on sepiolite, at the Institute of General and Physical Chemistry (IGPC).
Dojčinović Miroslava M.   +2 more
doaj   +1 more source

"Preparation of high vinyl polybutadiene/sepiolite nanocomposite

open access: yesHecheng xiangjiao gongye, 2022
High vinyl polybutadiene / sepiolite nanocomposites were prepared by in-situ polymerization using sepiolite as catalyst carrier for the coordination polymerization of butadiene catalyzed by molybdenum-based catalyst.
WANG Xiao-tong, XIE Ting-hao, TANG Jian, HUA Jing
doaj   +1 more source

The influence of sepiolite on the self-healing capability of concrete by means of water permeability [PDF]

open access: yesMATEC Web of Conferences, 2023
This paper investigates the autogenous self-healing capability of conventional concrete (C30/37) mixtures with water encapsulated in sepiolite. Sepiolite was added in two conditions: previously saturated and dry, at a dosage of 5% by the cement weight ...
Doostkami Hesam   +3 more
doaj   +1 more source

Purification of sepiolite and its dissolution in hydrochloric acid and sodium Acetate-Acetic acid buffer. [PDF]

open access: yesDesert, 2023
The associated impurities with sepiolite, mainly palygorskite, quartz, and dolomite, reduce the industrial quality of this mineral. The objectives of this study were to i) investigate the efficiency of particle size separation for purifying sepiolite and
M. Momen   +3 more
doaj   +1 more source

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