Menu
Mobile crushers can also be called mobile crushing plants, mobile crushers, etc. It is an inevitable product of high-tech crushing technology in the new era, and its main features are that it can be operated mobilely, can walk freely, and is more convenient for transitions, ensuring that the equipment While the production is safe, the work process is more reliable.
·Al2O3 and Al Ce 2O3 pillared montmorillonite materials were synthesized using the intercalation of large sized polyhydroxocomplexes of aluminum and aluminum/cerium in order to obtain adsorbents for removing the water soluble anionic acid red AR and cationic methylene blue MB dyes It was shown that the adsorption of dyes heavily depended upon
·The passive film of reinforcing steel in marine concrete is damaged by the infiltration of chloride and sulfate ions Layered double hydroxide LDH can adsorb anions and release interlayer ions to form passive films due to its ion exchange property A Mg Al NO3 layered double hydroxide/montmorillonite LDH/Mnt composite inhibitor was prepared by layer
·The composite s adsorption capacity reached 9 mg/g after 10 min at pH 4 Table 3 significantly higher than the adsorption of 5 mg/g recorded when applying biochar alone This increased adsorption capacity is probably due to the presence of montmorillonite with its high anion exchange capacity
·Montmorillonite Mt is a kind of 2 1 type layered phyllosilicate mineral with nanoscale structure large surface area high cation exchange capacity and excellent adsorption capacity By virtue of such unique properties many scholars have paid much attention to the further modification of Mt based two dimensional 2D functional composite materials such as
The cation exchange capacity CEC of Na MMT was determined using the methylene blue adsorption method 35 The found value 84 meq /100 g of dry clay correlates with the data reported in the literature 26 36 The Na MMT/IL composites were produced by mixing the components with a vibration shaker IKA VORTEX 4 basic IKA Werke GmbH & Co KG
·The most commonly used clay minerals in adsorption are kaolinite montmorillonite illite zeolite and bentonite [18 28 29] And the maximum adsorption capacity of Hg 2 at 20 and 35 °C was 245 and 305 mg/g respectively which was much higher than that of active carbon which ranging from 50 to 95 mg/g
·Preparation and Corrosive Anion curing Capability of Layered Double Hydroxide LDH /Montmorillonite Composites Volume 71 Issue 4 ions and sulfate ions exhibited high slow release efficiency The mass ratio of LDH and Mnt affected the curing capacity of the synthesized composites and the optimum mass ratio was LDH/Mnt = 1 1 for which
·Reducing the environmental issues brought on by nutrients especially nitrogen pollution and loss is important Owing to its unique composition and physico chemical characteristics biomass derived biochar exhibits varying degrees of adsorption and interception for all types of soil nutrients Thus a novel way to improve nutrient absorption in the soil is to
·Adsorption reactions play an influential role in the partitioning and uptake of chemicals Even at low concentrations amino acids are strongly adsorbed by clay minerals such as kaolinite and montmorillonite Hedges and Hare 1987 Clay minerals such as montmorillonite have a large surface area and high cation exchange capacity CEC
· 5 Ce q e = C e q max 1 b q max 6 ln q e = ln k f 1 n ln C e where C e is the concentration of the dye solution at the equilibrium state mg/L q e is the equilibrium adsorption capacity mg/g q max is the monolayer adsorption capacity of the adsorbent mg/g b is the constant of the Langmuir adsorption L/g k f is the Freundlich
The effect of adsorbed ions and pH on the adsorption of several purine and pyrimidine nucleotides on montmorillonite was studied The cations used to prepare homoionic montmorillonite were Na Mn2 Fe3 Co2 Ni2 Cu2 and Zn2 The nucleotides studied were 5′ 3′ and 2′ AMP and 5′ CMP in the pH range 2 through 12 The results show that preferential adsorption
·Nowadays there is a growing interest toward the investigation of clay based hybrid materials as they are promising in a wide range of applications from catalysis [] environmental [2 3] and cultural heritage preservation [4 5] Montmorillonite Mt which is a 2 1 type layered clay mineral characterized by propensity features such as high cation exchange
·The chemical nature and pore structure of clay materials generally influence their adsorption capability However due to the hydrophilicity of most clay materials the natural clay minerals usually are not effective for the adsorption of organic contaminants such as dyes antibiotics pesticides and biocidal compounds Koswojo et al 2010; Kurniawan et al 2011
·Adsorbents with high selectivity and adsorption capacity for toxic anions are needed in water purification procedures and in geotechnical barriers It was shown that certain clay minerals which were modified with certain organic cations exhibit the capability of anion adsorption Bors et al 2000 Krishna et al 2001 Li et al 2003
·In the montmorillonite−histidine system only slight distortions were observed in the histidine structures after adsorption Within the 1700−1200 cm −1 range the peak numbers positions and profiles of the adsorbed histidine resembled those of the corresponding solution spectrum Figs 1 B and 2 A− 2 C The discrepancies between the frequencies of the
·By calculating the montmorillonite elasticity constants under different adsorption capacity we found that the elasticity constant C33 which perpendicular to the crystal face with the maximum
·Adsorption of perchlorate ClO 4 − onto hexadecylpyridinium modified montmorillonite OMt was investigated by in situ and ex situ methods For the in situ method ClO 4 − was initially bound by hexadecylpyridinium HDPy in the form of HDPy ClO 4 which together with the excess HDPy were simultaneously captured by Mt The ex situ strategy
·Clay minerals have been recognized as one of the cheap and effective materials for wastewater remediation Among the various clay minerals montmorillonite MMT has received much attention due to its wide availability low cost and promising properties such as high porosity mechanical strength and cation exchange capacity Additionally MMT has high
·When cation anion surfactants are intercalated into Mt at the same time the formed strong distribution medium can remove pollutants cooperatively Therefore the adsorption property of cation anion OMt is better than single cationic or anionic OMt [15] and some other properties are also improved significantly
·Among clay minerals montmorillonite MMT and illite are generally used to remove radioactive cesium 137 Cs from radioactive objectives of this study were to investigate the mineralogical properties of MMT and illite with their Cs adsorption behavior and then demonstrate the type of clay mineral that should be used for removing high and low
·The purpose of the presented work was to invert the adsorption capacity of natural montmorillonite from cationic to anionic and to study the adsorption of inorganic anions on the surface of modified montmorillonite As model anions along with the above described Cr 2 O 7 2 and MoO 4 2 NO 3 were also investigated Despite the fact that
·The C16MImCl/MT is a mesoporous material which shows strong adsorption capacity for CR and its CR unit adsorption capacity CRUAC could reach mg/g which is about three times that of
·The adsorption isotherms of Pb²⁺ Cu²⁺ Ni²⁺ and Cd²⁺ fit with monolayer adsorption models and the adsorption capacity can reach up to and mmol/g respectively
·Our results showed that the HDA modification remarkably improved the adsorption ability of montmorillonite toward TZ molecules The highest adsorption efficiency was achieved >98% at the pH range of 4 6 within a fast process less than 30 min The maximum adsorption capacity Mt HDA toward TZ molecules was found to be 59 mg/g at 45 °C
