Modified kaolin modified kaolin modified kaolin

Preparation and Characterization of Modified Kaolin by a MDPI

2023年3月14日  A mechanochemical approach was utilized to prepare modified kaolin, and the hydrophobic modification of kaolin was realized The study aims to investigate the changes in AMA Style Liang X, Li Q, Fang Y Preparation and Characterization of Versions Notes2022年6月7日  In this work, the production of dimethyl ether (DME) from methanol over natural kaolin clay modified through impregnation with various percentages of H 2 SO 4, WO 3, or ZrO Modified natural kaolin clay as an active, selective, and stable 2022年4月21日  Some modified kaolin materials have the potential as adsorbents for the removal of numerous pollutants In view of this, we developed two modified kaolin named Fe–kaolin Application of two modified kaolin materials in removing micro

Modified natural kaolin clay as an active, selective, and stable

2022年6月7日  In this work, the production of dimethyl ether (DME) from methanol over natural kaolin clay modified through impregnation with various percentages of H 2 SO 4, WO 3, or ZrO 2020年5月28日  The properties of Enugu kaolin were modified by thermal and alkaline hydrothermal means The raw and modified kaolin samples were characterized using Thermal and hydrothermal alkaline modification of kaolin for the 2017年1月1日  In this paper, we modified kaolin through using KH550 (ie, amine functionalized silanes), and prepared PPgMAH/Mkaolin composites by melt blending of PPgMAH and M Effect of surface modified kaolin on properties of polypropylene 2021年8月1日  In this study, a novel modification method, namely, intercalationexfoliation combined with acid leaching, was applied to improve sodium adsorption efficiency of kaolin, Effects of modified kaolin adsorbents on sodium adsorption

Influence of calcined and hexadecyltrimethoxysilane modified

2022年4月26日  The results show that silane modified kaolin leads to a better dispersion and to a better mechanical and thermal properties However, addition of untreated kaolin increases E− 2019年12月24日  The successful modification of kaolin by CTAB through intercalation and coating was investigated by XRD and FTIR pXRD confirms the raw kaolin obtained from Preparation of cationic surfactantmodified kaolin for enhanced 2023年4月14日  A mechanochemical approach was utilized to prepare modified kaolin, and the hydrophobic modification of kaolin was realized The study aims to investigate the changes in Preparation and Characterization of Modified Kaolin by a 2019年12月24日  In the current work, we have reported a cationic surfactantmodified Ethiopian kaolin for improved adsorption of Cr(VI) from aqueous solution The raw kaolin was modified by treating with CTAB to enhance the adsorption properties The crystal structure and vibrational analysis of CTAB–kaolin were investigated by Fourier transform infrared spectroscopy (FTIR) Preparation of cationic surfactantmodified kaolin for

Experiment and mechanism study on enrichment of heavy metals

2022年8月15日  Experiment and mechanism studies on the enrichment of Pb, Cd, Zn, As, and Cr by modified kaolin were investigated during MSW (municipal solid waste) pyrolysis at 450 ~ 650 °C The results showed that γAlOK(micro and nanoγAl2O3 by hydrothermal method modified kaolin) was relatively selective for the solid phase enrichment of Cr and As, while CaHPK 2021年9月15日  To investigate the adsorption effect of kaolin and modified kaolin on Pb, Cd, Zn and Cr at different temperature points (900 ℃~1300 ℃), the effect of coal ash sintering on the adsorption of heavy metals by additives was deducted The adsorption mechanism of heavy metals from coal combustion 2017年1月1日  In this paper, we modified kaolin through using KH550 (ie, amine functionalized silanes), and prepared PPgMAH/Mkaolin composites by melt blending of PPgMAH and Mkaolin Then we investigated the effects of Mkaolin on mechanical and thermal properties of PPgMAH compositesEffect of surface modified kaolin on properties of polypropylene 2021年6月15日  The modified kaolin (MK4HS sample) still maintained a high PbCl 2 adsorption efficiency at a high temperature of 900 ℃, indicating that the combined modification process can improve the application potential of kaolin in hightemperature furnace Download: Download highres image (114KB)Enhanced PbCl2 adsorption capacity of modified kaolin in the

Effects of modified kaolin adsorbents on sodium adsorption efficiency

2021年8月1日  Kaolin modified by the method of intercalationexfoliation combined with acid leaching had the best performance concerning sodium adsorption capacity and alleviation of slagging tendency, implying a broad application prospect Previous article in issue; Next article in issue; Keywords Kaolin2024年6月15日  Thermal activatedacid/alkali modification greatly enhanced S BET and V of kaolin Al IIIO formed by dealuminization in Hkaolin owned higher adsorption ability Unsaturated Si IIIO group provided a pathway for adsorbing HMs in OHkaolin PbCl 2 adsorption efficiency of Hkaolin was significantly higher than OHkaolin Derived chars were Thermal activatedacid/alkali modified kaolin for enhanced heavy 2021年10月1日  The original kaolin slightly increased the retention rate of Pb, while the modified kaolin with a higher pore volume and diameter provided more active sites with which Pb could combine, promoting Pb reactions with the modified kaolin to produce the corresponding silicate, aluminate, silicoaluminate, and other nonvolatile substances (Wang et al, 2016a)Comparative study on intercalationexfoliation and thermal activation 2023年11月15日  This study investigates the impact of kaolinmodified superabsorbent polymers (SAPs) as internal curing agents on mortar properties While SAPs have been known to mitigate the shrinkage of cementbased materials, their adverse effects on strength have limited their applicability In this paper, the strength and shrinkage of mortars with varying SAP proportions Effects of kaolinmodified superabsorbent polymers on mortar

Experimental study on enrichment of heavy metals by intercalation

2019年5月13日  Experiment and mechanism studies on the enrichment of Pb, Cd, Zn, As, and Cr by modified kaolin were investigated during MSW (municipal solid waste) pyrolysis at 450 ~ 650 °C2021年1月1日  Coexisting TiO 2 nanoparticles influencing adsorption/ desorption of tetracycline on magnetically modified kaolin Author links open overlay panel Teng Wang a, Zhaofu Meng a b, Hua Jiang c, Xiuxian Sun a, Lancui Jiang a Show more Add to Mendeley Share CiteCoexisting TiO2 nanoparticles influencing adsorption/ desorption of 2020年10月1日  Chitosan modified magnetic kaolin (CS/kaolin/Fe 3 O 4) composite was prepared by a facile onepot coprecipitation method and used for the removal of methyl orange (MO) from aqueous mediumUnder alkaline condition, Fe 3 O 4 nanoparticles were deposited on the kaolin layer by insitu growth method and chitosan was deposited on the kaolin layer by pH Facile preparation of chitosan modified magnetic kaolin by 2019年11月1日  The modified kaolin with the best adsorptive ability was selected The results showed that kaolin modified with a 20 M citric acid solution was strongly adsorptiveCitric Acid Modified Kaolin and Its Application in ResearchGate

Removal of heavy metal ions from wastewater by combined modified kaolin

2018年1月1日  Modified kaolin clays were used as adsorbents for SO(2) gas adsorptions The clays were heated up to 900 °C previous to acid treatments with 05 N sulfuric acid solutions at boiling temperature 2022年1月1日  Abstract Removal of Cu2+ ions from contaminated water is an important but challenging task This study reports the synthesis of a composite hydrogel from two natural polysaccharides, namely, sodium alginate and chitosan, using inexpensive kaolin as a raw material and polyacrylamide as a modifier The hydrogel had a high adsorption capacity and Modified kaolin hydrogel for Cu2+ adsorption Semantic Scholar2023年10月1日  Since the yield and the degree of structural order of clays vary for different regions, characterization of both the raw kaolin and modified kaolin becomes essential (Prasetyoko et al, 2020) The raw kaolin was modified for its pretreatment with iron to improve upon the prospects of optimal adsorptive capacity of the adsorbentRaw and modified Pakistani Kaolin as an efficient adsorbent for Herein, we report a simple strategy to modify kaolin clay with carbon as an electrocatalyst for quercetin detection The modified clay composite was characterized using Xray diffraction SEM images of kaolin (a, b) and carbonmodified kaolin (c, d),

Application of PACmodified kaolin to mitigate Springer

2016年11月14日  Among various strategies for mitigating harmful algal blooms (HABs), coagulation–flocculation of algal cells by modified clay (MC) has proven to be an effective method that is widely applied in East Asia Inorganic nutrients produced by algal detritus decomposition after an HAB are quickly released into the overlying water, which may cause second 2024年10月1日  BET and SEM results showed that the addition of modified kaolin increased the pore structure and specific surface area of the biochar The Si/Al phase transition and hydroxyl leaching of the modified kaolin also provided more vacancies for solid–solid and gas–solid contact reactions between biochar with HMs and heavy metal vaporsEffect of copyrolysis of texting and dyeing sludge and modified kaolin 2023年1月1日  The experiments to compare the efficiency of kaolin, metakaolin (MK800), and acidmodified kaolin (AMK800) for upgrading tar by a simulated distillation gas chromatography (GC8890, Agilent, America) revealed that acidmodified kaolin was more effective than both kaolin and metakaolin and HCl modification of kaolin was necessary for tar upgrading (Fig S1)Insitu catalytic upgrading of Hami coal pyrolysis volatiles over 2024年1月15日  Insulation sample preparation In this paper, kaolin/EPDM and kaolin/BNNSs/EPDM composite samples were prepared by the melt blending method First, the appropriate amount of experimental EPDM, kaolin and BNNSs were weighed and added to a doubleroll opener and mixed at 60 °C for 20 min to make the filler uniformly dispersed in the Synergetic enhancement of the electricalthermalmechanical

Treatment of real industrial wastewater with high

Wastewater, Sulfate ions, Kaolin, Batch, Equilibrium, Kinetics In the present study, BaCl 2 modified Jordanian kaolin sorbent (obtained from Mahis, Jordan) was used to remove sulfatecontaminated industrial wastewater The kaolin 2023年1月1日  The adsorption energies of PbCl 2 on raw kaolin and modified kaolin were − 12460 and − 20590 kJ/mol, respectively P, Al and O atoms of modified kaolin served as active sites for PbCl 2 adsorption Al and O atoms on modified kaolin surface showed higher activity for PbCl 2 adsorption than P atomsExperimental and theoretical studies on the adsorption 2023年4月14日  A mechanochemical approach was utilized to prepare modified kaolin, and the hydrophobic modification of kaolin was realized The study aims to investigate the changes in particle size, specific surface area, dispersion ability, and adsorption performance of kaolin The structure of kaolin was analyz Preparation and Characterization of Modified Kaolin by a 2023年11月1日  For each modified kaolin used to capture heavy metal vapors, 005 g PbCl 2 and 005 g CdCl 2 respectively put into two boats were sent into the top stage of the fixed bed for producing heavy metal vapors 1 g modified kaolin powder was sent into the bottom stage of the fixed bed for capturing heavy metalsExperimental study on adsorption of PbCl2 and CdCl2 on kaolin modified

Effect of kaolin and sepiolite on fume emissions of rubber modified

2024年2月16日  Volatile organic compounds (VOCs) are the focus of current research on fume control of asphalt pavement Since the VOCs released from rubber modified asphalt come from both rubber and asphalt [8], new composition increases the complexity of the fumes compared to the conventional asphaltDifferent from matrix asphalt, the VOCs released from rubber 2023年4月24日  Abstract The preparation circumstances and effects of the kaolinmodified SAPO34 molecular sieves were studied in order to support the industrial application of the cuttingedge technology for producing light olefins from syngas catalyzed by bifunctional catalyst Additionally, their apparent morphology, crystal structure, structural features, and acid strength Efficient SyngastoOlefins Conversion via Kaolin Modified SAPO Download scientific diagram TGA of kaolin, metakaolinite, and modified kaolinite Fig 4a represents the FTIR spectra of the kaolin and the modification after adsorbing pyridine (Py) It has been TGA of kaolin, metakaolinite, and modified kaolinite Fig 4a 2023年4月14日  A mechanochemical approach was utilized to prepare modified kaolin, and the hydrophobic modification of kaolin was realized The study aims to investigate the changes in particle size, specific Preparation and Characterization of Modified Kaolin by a

A route for largescale preparation of multifunctional

2022年11月1日  As shown in Fig 1, kaolin was hydrophobically modified by electrochemical means to obtain superhydrophobic kaolin powder (kaolin/HDTMS), and then kaolin/HDTMS was mixed with adhesives (E51 and PDMS) to form a coating mixture, which was applied on the substrate surfaces by spraying methodThe specific operation steps are as follows A 2022年10月21日  Different concentrations solutions of NaOH and NaCl were used to modify raw kaolin for improving its heavy metal capture performance The best modified kaolin was formed by 019375 g NaOH modifying 10 g kaolin Study on Capture Performance on PbCl2 and CdCl2 2022年12月15日  When kaolin was added with 10 wt% sulfuric acid and calcined at 700 °C for 3 h, the performance of its dosage and unmodified kaolin dosage on sludge dewatering were shown in Fig 1The SRF value of the raw sludge was about 816 × 10 11 m/kg, which indicated the poor dewatering performance With the increase of modified kaolin, both SRF and water content of Effect of modified kaolin conditioning sludge on organic matter Some modified kaolin materials have the potential as adsorbents for the removal of numerous pollutants In view of this, we prepared the aqueous solution containing methylene blue, rhodamine B and orange II and developed two modified kaolin materials called FekaolinAdsorption effect of two modified kaolin materials on wastewater

Preparation and Mechanical Properties of Polyurethane/Modified Kaolin

2011年2月1日  Polyurethane/modified kaolin foam composites were prepared via in situ polymerization with calcined kaolin as well as intercalated kaolin by onestep procedure The lattice structures of the kaolin were characterized by XRD The calcined kaolin under 600°C became amorphous structure and were well dispersed in the polyurethane (PU) matrixModied natural kaolin clay as an active, selective, and stable catalyst for methanol dehydration to dimethyl ether Mohamed Abd El‑Aal1, Abd El‑Aziz Ahmed Said1*, Mohamed H Abdallah2 Modified natural kaolin clay as an active, selective, and stable 2022年2月2日  The present study focuses on nitrate removal from water using kaolin and modified kaolin in a batch system The adsorption studies were executed to study the influence of initial pH (20–70), contact time (5–240 min), adsorbent dosage (1–30g/L), and initial nitrate concentration (50–250 mg/L) using kaolin and modified kaolin as adsorbents The percentage Denitrification performance of kaolin and modified kaolin for the 2021年4月14日  Kaolin modified with urea (KU) was prepared by mechanochemical method The FTIR and XRD data of KU showed that urea was successfully inserted into kaolin layer and the intercalation rate of KU was 63% KU/SiO 2 @MAPP/DPER was applied as a flame retardant to improve the flame retardancy of LDPEStudy on synergistic expansion and flame retardancy of modified kaolin

Effects of kaolinmodified superabsorbent polymers on mortar

2023年11月15日  Results indicate that kaolinmodified SAPs effectively reduce autogenous and drying shrinkages in mortars Although modified SAPs influenced pore size distributions, resulting in reduced strength, higher content of kaolin composite strengthened the bond between SAPs and cementbased materials2023年4月14日  1 Introduction The natural clay mineral kaolin has been used for many years []It is a porous substance primarily made up of kaolinite and is a typical silicate mineral, with a crystalchemical formula of 2SiO 2 Al 2 O 3 2H 2 O [2,3]The ratio of silicon–oxygen tetrahedrons to aluminum–oxygen octahedrons is 1:1 and the two are linked by shared oxygen Preparation and Characterization of Modified Kaolin by a

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