SEM images of the different bentonite samples: (a) …

Natural bentonite clay from South Africa was used in preparation of pillared clay by the use of mixed oxide pillars of aluminium and zirconium.

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Oxidation of MoSi2 and MoSi2-based materials

SiO 2 and Al 2 O 3, which are the main compositions of bentonite, are reported to have good anti-oxidation properties at elevated temperature, [60][61][62] [63] [64][65][66][67] …

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Bentonite supported cobalt catalyst prepared by blending method …

Download Citation | On Feb 1, 2025, Fanbo Zeng and others published Bentonite supported cobalt catalyst prepared by blending method for the catalytic oxidation of desulfurization by …

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Effects of various relative humidity conditions on copper corrosion

Bentonite is still considered one of the most effective and reliable electrical grounding systems compared to other alternative grounding material [2 ... The patina is the …

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Hydroxyl-aluminum pillared bentonite enhanced Mn(II) removal by

The Mn(II) oxidation process includes the homogeneous oxidation, catalytic oxidation on the surface of the catalysts and self-catalytic oxidation produced by the newly …

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Competitive oxidation mechanism endows MXene-based …

The pristine Ti 3 CNT x film experiences a rapid drop in conductivity to 5.3 S cm-1 due to high-temperature oxidation. With the increase in bentonite nanosheets content, the …

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Enhanced oxidation of antibiotic residuals (Levofloxacin) using a …

The recognised oxidation results demonstrate significant enhancement in photocatalytic activity by using the polyaniline/bentonite composite as a carrier for ZnO …

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Insights on applications of bentonite clays for the removal of dyes …

Bentonite clays (BCs), whether in natural or modified form, have gained enormous potential in wastewater treatment and have been used successfully as a novel and cost-effective bio …

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Catalytic oxidation of aromatic VOCs with Cr or Pd-impregnated …

The catalytic behavior of chromium and palladium-impregnated Al-pillared bentonite for the oxidation of aromatic VOCs, i.e. chlorobenzene or xylene, was investigated. The Cr …

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Investigation of acid-activated iron-based bentonite materials for …

Thus, the iron-based bentonite catalytic oxidation mirrors this established Fenton reagent behavior. In the case of Fenton-like reactions, the stability of the active phase as well …

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Preparation and 1500 °C oxidation behavior of crack-free bentonite

In the current work, bentonite was doped in MoSi 2 powders to prepare MoSi 2-bentonite composite coating on Mo substrate using SPS.For comparison, Mo coated single …

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Optimization of bleaching power by sulfuric acid activation of bentonite

bentonite (Komadel, 2003; Noyan et al., 2007) have also been used for bleaching of various edible and. mineral oils. In general, raw and ac id act ivated clays are called "fuller …

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Engineering TiO2 supported CTAB modified bentonite for …

This study reports the removal of hydrocarbon pollutants from petroleum refinery wastewater by simultaneous photo-catalytic oxidation and adsorption using TiO 2 loaded on …

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Response of NiCrAl-bentonite abradable seal coatings to …

This variation is attributed to the sensitivity of the oxidation rate to temperature. The parabolic oxidation rate of the NiCrAl-bentonite ASCs was 7.9 g·m −2 ·h −1/2 during oxidation …

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Investigation of acid-activated iron-based bentonite materials for …

The chemical oxidation method is mainly through chemical oxidation, photocatalytic oxidation, combustion, and liquid absorption methods that require the use of …

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Mechanisms of Advanced Oxidation Processing on Bentonite …

The average bentonite particle diameter decreased from 4.6 to 3 μm, while the light-scattering surface area increased over 50% after 20 min ultrasonication. This would greatly …

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REDOX CHEMISTRY IN TWO IRON-BENTONITE FIELD

Excavated bentonite from two large iron—bentonite field experiments at Äspö Hard Rock Laboratory in Sweden was investigated with respect to iron redox chemistry and …

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Oxidation of alcohols with tert-butylhydroperoxide catalyzed by …

In summary, the Co(II) complexes/bentonite are active in catalyzing the oxidation of various alcohols with good conversion percentage and selectivity by using TBHP or H 2 …

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Mechanisms of Advanced Oxidation Processing on Bentonite …

We herein sought to explore the mechanism of this enhancement and found that AO water displaced the carbon coating of pyrolyzed carbonaceous condensates that otherwise …

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Preparation and 1500 °C oxidation behavior of crack-free …

Bentonite is doped in MoSi 2 coating to reduce the mismatch of CTE. The bentonite-containing coating exhibits dense and crack-free morphologies after SPS. Low …

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Natural bentonite/cellulose/vanadium novel complex …

The first bentonite catalyst for oxidation of sulfides and oxidative coupling of thiols was fabricated. This novel catalyst was included natural bentonite, extracted cellulose from …

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Effects of iron corrosion products on the degradation of …

Bentonite is a key material for engineering barriers to prevent groundwater and nuclide migration in the multi-barrier system of high-level radioactive waste (HLW) geological disposal. However,...

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Sulphuric Acid Activation of a Calcium Bentonite

The objective of this work was to determine the changes of thermal and surface properties of a bentonite from Çankιrι after activation using different concentrations of H2SO4 …

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Unique roles of exfoliated bentonite in S-scheme BiOBr/Bi2MoO6

Oxidation of the piperazine ring and defluorination dominate the CIP degradation. Abstract. ... Bentonite as a kind of nature clay possessed many merits, such as large specific …

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Chemical and mineralogical reactions of bentonites in …

For reasonable inclusion of pyrite oxidation into geochemical models, empirical studies on the pyrite characteristics within the employed bentonite should be conducted and …

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Preparation and Characterization of a Bentonite-Based Hybrid …

The effect of the bentonite-based hybrid gel on coal oxidation measured by TG has shown that the addition of the hybrid gel leads to a significant reduction of mass increase …

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Synthesis and characterization of Au nanocatalyst on modifed bentonite

As an overall view, the silica supported catalyst displayed 55% higher cyclohexene oxidation than bentonite supported catalyst. As TEM images of the two catalysts show the size …

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Sn–bentonite-induced Baeyer–Villiger oxidation of 2

Abstract A tin ion-exchanged bentonite seems to be a rather efficient and highly selective catalyst for Baeyer–Villiger oxidation of 2-heptylcyclopentanone to d-dodecalactone using …

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High-temperature stability in air of Ti3C2Tx MXene-based …

The top row shows the oxidation of pristine Ti 3 C 2 T x, which is induced by interacting with oxygen molecules, and Ti 3 C 2 T x finally transforms to TiO 2.The bottom row …

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Surface and Coatings Technology | Vol 495, 1 January 2025

Research on the oxidation behavior and oxidation mechanism of NiCrAl-bentonite abradable seal coatings at 650 °C. Kaixuan Zhou, Yongchao Fang, Xiufang Cui, Guo Jin, ... Taoyi Shi. Article …

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Interface behavior and oxidation consolidation mechanism of titanium

In Li's research, the preparation parameters include an oxidation-roasting temperature of 1220 °C, an oxidation-roasting duration of 20 min, 0.5 wt% organic binder …

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Research on the oxidation behavior and oxidation mechanism of …

To study the oxidation behavior and microstructure transformation mechanism of NiCrAl-bentonite abradable seal coatings (ASCs), the NiCrAl-bentonite ASCs were prepared …

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Mechanisms of Advanced Oxidation Processing on Bentonite Consumption

Prior full-scale foundry data have shown that when an advanced oxidation (AO) process is employed in a green sand system, the foundry needs 20−35% less makeup …

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(PDF) Oxidation of alcohols with tert-butylhydroperoxide catalyzed …

Keywords: Co(II) complexes; Bentonite; Cyclohexanol; Oxidation of alcohols 1. Introduction The search for new oxidation catalysts is one of the most important topics connected with both …

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A novel layer-layer crossed structure of bentonite/g-C

In this work, a novel 2-dimentional (2D)-2D bentonite/g-C 3 N 4 composite (B/g-C 3 N 4), with a layer-layer cross structure and large surface area, was synthesized by a self …

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