N2 Adsorption-desorption Isotherm Analysis Research Articles

Synthesis of Fe-Cu/MCM-41 nanocomposite and its application for treatment of Reactive Red 195

A series of Fe-Cu/MCM-41 nanocomposites were synthesized by dispersion of Fe-Cu on mesoporous silica MCM-41 obtained from natri silicat. The physical properties of Fe-Cu/MCM-41 were characterized by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), scanning electron microscopy (SEM), x-ray photoelectron spectroscopy (XPS), N2 adsorption-desorption isotherm (BET) analysis. Effects of pH and H2O2 concentration were investigated. The best conditions were found to be pH of 3; 0.3 g.L−1 catalyst and reaction time of 60 min at room temperature. The novel Fe-Cu/MCM-41 composite exhibited highly photocatalytic performance of RR-195 degradation and the conversion reached to the value of 98.13 % for the 10Fe-2Cu/SBA-15 after 60 min of reaction.

Pathogen associated molecular pattern-decorated mesoporous silica-A colloidal model for studying bacterial-host cell interactions.

Tuberculosis is the top infectious disease worldwide and the development of a vaccine and diagnostic tools to control the disease is a priority that requires a better understanding of the factors involved in the pathogenesis of Mycobacterium tuberculosis, the infectious agent. It is known that bacterial cell surface components are released, interact with immune cell receptors, and may traffic toward host cell structures. Many of these compounds are lipids that have been associated with mycobacterial virulence. However, their hydrophobic nature has frequently hampered their biological study. In this work, silica particles were coated with functional lipids to obtain a colloidal bioinspired system based on nonhydrosoluble glycolipids. Mycobacterium tuberculosis phosphatidylinositol mannosides (PIMs), known to interact with receptors of innate immune cells, were purified from the M. tuberculosis H37Rv type strain, and used to prepare large unilamellar liposomes in combination with zwitterionic phosphatidyl choline. Then, bacillary-like Santa Barbara Amorphous-15 (SBA-15) silica particles were cationized and the vesicle fusion method was used to promote the attachment of anionic PIM-containing lipid bilayers. Thermogravimetric analysis, x-ray diffraction, N2 adsorption-desorption isotherm analysis, Fourier transform infrared spectroscopy, electron microscopy, and zeta potential analyses were used to characterize the materials obtained. The as-prepared PIM-containing colloids, named PIM@SBA-15, showed biocompatibility toward human fibroblasts and were found to colocalize with Toll-like receptor (TLR)2 upon their incubation with THP1-derived macrophages. Furthermore, the particles induced the formation of pseudopods and were internalized into phagocytic cells. In all, these data suggest the usefulness of PIM@SBA-15 particles to better comprehend the interactions between immune cells and PIMs.

The use of artificial neural network (ANN) for modeling adsorption of sunset yellow onto neodymium modified ordered mesoporous carbon

Discharging coloring products in water bodies has degraded water quality irreversibly over the past several decades. Order mesoporous carbon (OMC) was modified by embedding neodymium(III) chloride on the surface of OMC to enhance the adsorptive removal towards these contaminants. This paper represents an artificial neural network (ANN) based approach for modeling the adsorption process of sunset yellow onto neodymium modified OMC (OMC-Nd) in batch adsorption experiments. Neodymium modified OMC was characterized using N2 adsorption-desorption isotherm, TEM micrographs, FT-IR and XPS spectra analysis techniques. 2.5 wt% Nd loaded OMC was selected as the final adsorbent for further experiments because OMC-2.5Nd showed highest removal efficiency of 93%. The ANN model was trained and validated with the adsorption experiments data where initial concentration, reaction time, and adsorbent dosage were selected as the variables for the batch study, whereas the removal efficiency was considered as the output. The ANN model was first developed using a three-layer back propagation network with the optimum structure of 3-6-1. The model employed tangent sigmoid transfer function as input in the hidden layer whereas a linear transfer function was used in the output layer. The comparison between modeled data and experimental data provided high degree of correlation (R2 = 0.9832) which indicated the applicability of ANN model for describing the adsorption process with reasonable accuracy.

Toluene side chain alkylation with methanol over silica catalyst

MSN and SiO2 catalyst were investigated on side chain toluene alkylation with methanol reaction. Characterization of the catalyst were carried out by XRD, N2 physisorption analysis, FTIR spectroscopy. A pyrrole adsorption FTIR study reveals shifting of perturbed NH stretching increasing slightly in MSN compared to SiO2 catalyst revealed that MSN possessed higher basic sites than SiO2. N2 adsorption desorption isotherm analysis showed that MSN possessed higher surface area than SiO2 as well as increased the amount of mesopores in catalyst. The catalytic side chain toluene alkylation with methanol reaction was conducted in the range of 523K-673K under atmospheric pressure. MSN exhibits the highest catalytic performance compared to SiO2 catalyst.

Preparation of bio-oil-based polymer microspheres for adsorption Cu2+ and its adsorption behaviors

Bio oil, a liquid derived from pyrolyzing biomass, which is rich in oxygen and hard to utilize. Herein, a kind of bio-oil-based polymer microspheres for adsorbing Cu2+ was successfully synthesized. Pretreated bio-oil were cross-linked with phenol, formaldehyde into a polymer. Then the polymer was encapsulated into microspheres by sodium alginate sol-gel. In comparison with the microspheres produced without bio-oil and unpretreated bio-oil but under identical steps, the microspheres obtained with pretreated bio-oil had the maximum adsorption capacity of 194.54 mg g−1 for Cu2+ (293 K), which exceeded most capacity reported in the literature. The adsorption process followed pseudo-second-order kinetics, and fitted well with the Langmuir isotherm model. It was also an endothermic and spontaneous process. The structure and morphology were also characterized by fourier transform infrared (FT-IR) spectrometer, thermal gravimetric (TG), N2 adsorption–desorption isotherm analyses, scanning electron microscope (SEM), elemental analyzer, X–ray photoelectron spectroscopy analysis (XPS). This work provides a novel way of utilizing bio-oil and choosing adsorbents for the removal of heavy metals. The bio-oil based polymer microspheres were prepared and exhibited excellent adsorption of Cu2+. This phenomenon was attributed to the fact that the presence of oxygen-containing functional groups such as –OH, and –SO3 in the microspheres provided sites of action for chelation with heavy metal ions.

Thermally reduced graphene oxide as green and easily available adsorbent for Sunset yellow decontamination

The release of synthetic food dyes, like Sunset yellow, into industrial effluents can cause serious environmental and health problems. Due to its aromatic structure, it is recalcitrant towards degradation into non-toxic intermediates and its removal by efficient adsorption represents a cheap and efficient method. Herein we propose the use of thermally reduced graphene oxide (TRGO) as effective Sunset yellow dye adsorbent with an adsorption maximum capacity comparable with other sophisticated, chemically synthesized carbon-based nanomaterials. The reduced graphene oxide and the Sunset yellow adsorbed one were characterized by FT-IR, XPS and XRD spectroscopy, N2 adsorption-desorption isotherm and TGA analysis. BET surface area reduced from 274.1 m2/g (for TRGO) to 39.9 m2/g (for TRGO-SY) showing that Sunset Yellow molecules occupied the corresponding active sites while the number of sheets resulted from the XRD spectra – from 3 to 8 in TRGO to 5 in TRGO-SY indicates the ordered intercalations in the graphene structure. The adsorption isotherm experimental data were better fitted with the Langmuir model than the Freundlich model, with the maximum adsorption capacity of the SY dye monolayer of 243.3 mg/g at pH = 6.0 and 189.0 mg/g from synthetic wastewater. The kinetic study revealed a perfect fit following the Pseudo-second order model with an equilibrium achieved within 30 min. The lack of adsorption on the starting graphene oxide is indicative for π-π interactions between the adsorbate and adsorbent.

Mesoporous GO-TiO2 nanocomposites for flexible solid-state supercapacitor applications

Fabrication of flexible solid-state supercapacitor is a field of paramount importance because of its potential application in portable devices. In this article, graphene oxide and titanium dioxide hybrid (GO-TiO2) nanocomposites of different compositions are employed for the fabrication of flexible solid-state supercapacitors. An easy, fast, scalable and controlled sol-gel method is devised for GO-TiO2 nanocomposites growth from different amounts of graphene oxide and titanium isopropoxide at atmospheric pressure. Highly monodispersed rutile TiO2 nanospindle is homogenously grafted on GO by a controlled HCl catalyzed reaction. BET N2 adsorption desorption isotherm analysis confirms formation of the mesoporous structure having a large specific surface area favourable for faster reversible adsorption and desorption of ions. An optimum composition of GO-TiO2 nanocomposite (TG25) exhibits a high areal specific capacitance of 73.43 mF cm−2 at a current density of 0.5 mA cm−2 due to formation of electrical double layer in a solid-state supercapacitor. The fabricated device shows high power density (3.5 mW cm−2), a high energy density (0.007 mWh cm−2), good flexibility and excellent cycling stability, 92% specific capacitance retention after 10,000 continuous charge-discharge cycles. Finally, three supercapacitors in a series have illuminated a red LED, indicating the nanocomposite as a potential candidate for energy storage technology.

Novel band gap engineered Bi5Nb3O15/N-rGOcomposite catalyst for photo degradation of reactive dyes

Niobate photo catalysts draw significant attention in the fields of both pollutant degradation and H2 generation. However, their chemically inert nature limits the synthetic routes available to obtain these semiconductors. In this work, we report the synthesis of bismuth niobate (Bi5Nb3O15) by a simple solvothermal method and incorporation of this material with nitrogen doped reduced graphene oxide for the first time. The synthesized catalysts were characterized by XRD, Raman, N2 adsorption-desorption isotherm, DRS-UV, FESEM and TEM analyses. XRD patterns exhibited single crystalline orthorhombic structure for Bi5Nb3O15. Electron microscopy showed plate-like structure for Bi5Nb3O15/N-rGO. UV–vis diffuse reflectance spectra revealed red shifting of reduced graphene oxide and nitrogen doped reduced graphene oxide composite catalysts indicating its visible activity. This novel Bi5Nb3O15/N-doped reduced graphene oxide showed higher photocatalytic decolorization of reactive dyes namely reactive blue 19 and reactive orange 16 under visible light than bare Bi5Nb3O15orBi5Nb3O15/rGO.

Assessment of tailor-made mesoporous metal doped TiO2 monolithic framework as fast responsive visible light photocatalysts for environmental remediation applications

The article reports on the facile one-pot synthesis of a structurally organized mesoporous crack-free monolithic network of Bi3+ doped TiO2, as a visible light workable photocatalyst materials for environmental remediation. The monolithic photocatalyst efficacy has been investigated using Acid Blue 113, an organic textile dye as the model organic pollutant, thereby rooting its decontamination potential towards dye effluents from textile and dye industries. The controlled stoichiometric surface doping of Bi3+ with the continuous framework of the TiO2 monolithic material not only ensures visible light-induced photocatalysis but also high quantum yield upon light impingement thereby leading a rapid generation of reactive radical species. The monolith structural properties and its morphology are characterized using transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), selected area electron diffraction (SAED), energy dispersive X-ray spectrometry (EDAX), diffuse reflectance spectroscopy (DRS), photoluminescence spectroscopy (PLS), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and N2 adsorption-desorption isotherm analysis. The anatase phase TiO2 monolith offers a high surface area that promotes the voluminous generation of photo-induced e−/h+ pairs that proceed towards the formation of reactive radical intermediates for the fast dissipation of pollutants. To valid the efficiency and effectiveness of the Bi3+ doped TiO2 monolith photocatalyst, a comprehensive study on the physicochemical parameters such as solution pH, dopant stoichiometry, photocatalyst quantity, light intensity, photosensitizers, and reusability, proves crucial. The results reveal that under optimized conditions, the photocatalyst has an ultra-fast response time of ≤0.2 h for complete mineralization, with 0.06 g of monolithic photocatalysts that are recoverable and reusable.

Synthesize of dendritic fibrous nano-silica functionalized by cysteine and its application as advanced adsorbent

l-Cysteine-modified dendritic fibrous nanosilica grafted by amine groups (Cys-DFNS-NH2) have been synthesized by a novel hydrothermal method. The N2 adsorption–desorption isotherms analysis on the Cys-DFNS-NH2 show that the average pore volume and surface area of the prepared fibrous Cys-DFNS-NH2 were 2.2 cm3/g and 205 m2/g, respectively, while the average pore size is 6.06 nm. Adsorption behavior of the Cys-DFNS-NH2 for Cd2+, Cu2+, Ag+, and Pb2+ was investigated by electrochemical methods. The results show that Cys-DFNS-NH2 can selectively adsorb Cd2+, Ag+, and Pb2+ in different potentials. Finally, the application of the engineered adsorbent for the removal of Cd2+, Ag+, and Pb2+ from contaminated water samples was examined. This work provides a new platform to the synthesis of Cys-DFNS-NH2 with high specific surface area for efficient adsorbent of specific metal ions.

Novel method and its mechanism of reconstruction of commercial alumina to homogeneous porous alumina composite material

Abstract In this study, a novel method for reconstruction of commercial alumina to a homogeneous porous alumina composite material (HPACM) using an alumina powder, boric acid, and Na2SO4 and Na2CO3 additives is proposed for the first time and experimentally evaluated in detail. The properties of the as-prepared porous materials and their formation mechanisms are investigated. Unlike the traditional complex methods for manufacturing of porous alumina including electrochemical anodisation of aluminium and chemical etching, the HPACM can be simply prepared through sintering and dissolution. Scanning electron microscopy and N2 adsorption–desorption isotherm analyses demonstrate the formation of the HPACM with a diameter distribution centred at ∼20 nm after the sintering and decomposition at high temperatures and dissolution at room temperature. Transmission electron microscopy and X-ray diffraction results show that the main components of the as-prepared HPACM are alumina and sodium aluminate. The formation of the HPACM is attributed mainly to the reactions between the alumina powder, boric acid, and Na2SO4 and Na2CO3 additives at high temperatures and dissolution of the intermediate product of sodium aluminate at room temperature. A NaCl additive does not contribute to the formation of the intermediate product during the sintering process, owing to its considerable vapour loss at low temperatures. Moreover, a nanoindentation test shows that the HPACM has a good mechanical strength.

Green synthesis of aminocarbonyl compounds using a nanostructured heterogeneous catalyst under mild reaction conditions

The synthesis of aminocarbonyl derivatives as biologically active compounds by using polyethylene glycol (PEG-400)-SO3H-coated Fe2O3 is reported. The heterogeneous nanocatalyst was prepared via in-situ co-precipitation method and its structure and morphology was characterized by Fourier-transform infrared spectroscopy, energy-dispersive X-ray analysis, X-ray diffraction pattern, field-emission scanning electron microscopy image, vibrating sample magnetometer curves, N2 adsorption-desorption isotherm and inductively-coupled plasma analysis. Noteworthy, the green composite nanocatalyst was applied for the one-pot multicomponent synthesis of aminocarbonyl compounds at room temperature. This work had advantages such as significant nanocatalyst activity, recoverability, short process time, mild reaction conditions and high products yields.

Highly active catalysts: Double‐shelled hollow nanospheres with tiny Pt NPs

A facile strategy was reported to fabricate a novel Pt‐based metal oxide double‐shelled hollow nanospheres (MDSHs), which avoided the traditional tedious procedures. It was attractive that the formation mechanism of DSHs involved redeposition of etch‐released silica species and self‐assembly of metal oxide units. To verify the successful synthesis and structure features of Pt‐LCDSHs catalyst, the as‐prepared samples were characterized by several techniques, such as SEM, N2 adsorption–desorption isotherm analysis, TEM, EDX, XRD and XPS. Results indicated that all of MDSHs possessed double‐shelled structures with both the inner and outer shells composing of metal oxide units. Interestingly, the metal oxide of the DHSs could offer abundant active points for Pt NPs and the space between the double shells also could be filled with Pt NPs. What's more, compared with the pure samples, the Pt‐embedded La2O3‐CeO2‐DSHs exhibited the highest catalytic performance (6.58 × 10−3 min−1) and good reusability with a conversion of 94% even after eight cycles, which were evaluated by means of the reduction of 4‐nitrophenol monitored by UV–vis spectra. Finally, a possible reaction mechanism for the reduction reaction on Pt‐based La2O3‐CeO2‐DSHs was also proposed.

Photocatalytic oxidation of aromatic alcohols over silver supported on cobalt oxide nanostructured catalyst

In this paper, we report an in-situ synthesis of silver supported on cobalt oxide (Ag/Co3O4) nanoparticles (NPs) and studied the catalytic activity of this material as an eco-friendly, simple, recyclable and efficient catalyst for one-pot photocatalytic oxidation of aromatic alcohols. Ag nanoparticles with the sizes of 2–5 nm supported on spherical Co3O4 with the radius between 40 and 60 nm were synthesized by homogeneous chemical precipitation followed by hydrothermal heating. The as-synthesized catalyst was thoroughly characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), elemental mapping, transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and N2 adsorption-desorption isotherm (BET) analysis. It was observed that the catalysts with 1 wt% of silver loading shows high activity and selectivity toward the target aldehyde product. The effects of different reaction parameters such as reaction time, oxidant and solvent were investigated and studied in detail. The synergistic effect between the surface Ag NPs and Co3O4 nanospheres plays a vital role toward very high catalytic activity.

Low-Cost Synthesis of Organic–Inorganic Hybrid MSU-3 from Gold Mine Waste for CO2 Adsorption

Amine-grafted MSU-3 mesoporous silica samples were synthesized from pure and waste silica sources and their CO2 adsorption performances were evaluated. The obtained samples were characterized using X-ray diffraction (XRD), thermogravimetric analysis (TGA), N2 adsorption–desorption isotherm analysis, Fourier transform infrared (FTIR), and transmission electron microscopy (TEM). CO2 adsorption capacities of the samples at different temperatures were determined by TGA. The amine-modified MSU-3 synthesized from waste exhibited the highest CO2 adsorption capacity of 1.32 mmol/g at 25 °C and 1 bar, depending essentially on the porous texture and the amine content of the material. The CO2 adsorption isotherms of the synthesized samples were measured by a static volumetric method. Adsorption isotherm indicated that the amine-modified samples presented significantly higher CO2 adsorption capacity than the pure samples. The Avrami kinetic model fitted the experimental data well and suggested that complex reaction mechanism or the appearance of multiple reaction pathway occurred in the CO2 adsorption.

N-heterocyclic carbene-Pd(II) complex based on theophylline supported on Fe3O4@SiO2 nanoparticles: Highly active, durable and magnetically separable catalyst for green Suzuki-Miyaura and Sonogashira-Hagihara coupling reactions

In this paper, a novel heterogeneous palladium catalyst was synthesized by anchoring N-heterocyclic carbene-Pd(II) complex based on theophylline on magnetic Fe3O4@SiO2 nanoparticles. The synthesized magnetic composite was characterized by fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray analysis (EDX), thermogravimetric analysis (TGA), vibration sample magnetometry (VSM), transmission electron microscopy (TEM), field emission scanning electron microscopy (FE-SEM), dynamic light scattering (DLS), N2 adsorption-desorption isotherm analysis (BET), UV–vis spectroscopy and elemental analysis. Also, loading content of palladium on the catalyst was measured by inductive coupled plasma (ICP) analysis. The synthesized catalyst was used successfully for the Suzuki cross-coupling reactions of various aryl halides (I, Br, Cl) with phenylboronic acids. This reaction was best performed in water as a green solvent in the presence of just 0.37–0.5 mol% of the catalyst at 60 °C. Also, we have reported this recyclable catalytic system as a stable phosphine-free Pd catalyst for the Sonogashira cross-coupling of aryl halides (I, Br, Cl) with terminal aromatic and aliphatic alkynes under solvent-free conditions. All coupling reactions proceeded with good to excellent yields. The catalyst showed good stability and was recovered and reused for eight reaction cycles without a significant loss in its catalytic activity. Also, the leaching of the catalyst has been examined by a hot filtration test and ICP-AES analysis.

Promotion of phenol photodecomposition and the corresponding decomposition mechanism over g-C3N4/TiO2 nanocomposites

Composite photocatalysts containing TiO2 nanoparticles grown on nanosheet-structured graphitic carbon nitride (g-C3N4) were synthesized using a facile calcination approach. A series of g-C3N4/TiO2 nanocomposites was prepared by varying the amount of the urea precursor from 1 g to 5 g. The as-prepared catalysts were characterized by X-ray diffraction; scanning electron microscopy; N2 adsorption-desorption isotherm analysis; and Fourier transform infrared, X-ray photoelectron, and UV–Vis spectroscopies. The results revealed that small TiO2 particles were well dispersed on the surface of the g-C3N4 nanosheets. Compared with pure TiO2 nanoparticles, the obtained g-C3N4/TiO2 nanocomposites showed enhanced photocatalytic activity toward the degradation of phenol as a result of improved separation of photogenerated electrons and holes derived from the synergistic interaction of TiO2 and g-C3N4. The g-C3N4/TiO2 composite prepared with 4 g of urea precursor showed the best photocatalytic performance toward phenol decomposition with a degradation rate of 99.4%. It was found that during the degradation process, p-benzoquinone, catechol, and hydroquinone were generated; hydroquinone was identified as the main intermediate product. Furthermore, mechanisms were proposed to explain the electron-hole separation and transport over the g-C3N4/TiO2 photocatalyst as well as phenol degradation under ultraviolet light irradiation.

Synthesis and characterization of Ce-SBA-15 supported cesium catalysts and their catalytic performance for synthesizing methyl acrylate

A series of Ce-SBA-15 mesoporous materials were synthesized through a direct hydrothermal method and further impregnated with different amounts of Cs. The catalysts were characterized by XRD, XPS, SEM, NH3-TPD, CO2-TPD, FT-IR and N2 adsorption–desorption isotherm analyses. The XRD and N2 adsorption–desorption isotherm results showed that the Ce successfully incorporated into the framework of SBA-15, which was favorable for the generation of mesoporous materials with high specific surface areas, large pore volumes and narrow pore size distribution. The incorporation of Ce changed the acid–base properties of the support and promoted the dispersion of Cs species. NH3–CO2 TPD results indicated that a number of medium-strong acid and base sites existed in the 10Cs/Ce-SBA-15(10) catalyst, which made it suitable as a catalyst for the aldol condensation of methyl acetate with formaldehyde to prepare methyl acrylate.

Fe–Mn/MCM-41: Preparation, Characterization, and Catalytic Activity for Methyl Orange in the Process of Heterogeneous Fenton Reaction

Active Fe- and Mn-loaded MCM-41 (Fe–Mn/MCM-41), which was synthesized via a hydrothermal reaction followed by impregnation, is used in the heterogeneous Fenton reaction to degrade methyl orange (MO) in aqueous solution. The synthesized samples were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, N2 adsorption–desorption isotherm analysis, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy. Compared with Fe/MCM-41 and Mn/MCM-41, Fe–Mn/MCM-41 showed higher activity for MO degradation and mineralization. Effects of various operating parameters, such as pH, Mn content, and H2O2 dosage, on the degradation process were subsequently investigated. Results of experiments on the effect of radical scavengers revealed that the degradation of MO could be attributed to oxidation by HO·. The synergy of Fe and Mn species in the Fenton oxidation process was also explained.

Removal of Cr(VI) and fluoride by membrane capacitive deionization with nanoporous and microporous Limonia acidissima (wood apple) shell activated carbon electrode

Abstract Membrane capacitive deionization (MCDI) is an attractive desalination technique to achieve pure water by adsorbing ions in charge porous electrodes. In the current study nano-porous and micro porous activated carbon was derived from Limonia acidissima shells. The Limonia acidissima shell activated carbon (LASAC) prepared with chemical and thermal modification. The characterization techniques such as SEM, TGA, DTA, DTG, and N2 adsorption–desorption isotherm analysis were used for analysis LASAC. The LASAC electrode was used in MCDI lab scale self-made set up for simultaneous sorption of Cr(VI) and fluoride from the aqueous system. The LASAC electrode performance of was found effective for simultaneous removal of Cr(VI) and fluoride from mixed feed solution with maximum electrosorption capacity of Cr(VI) and fluoride were found to 0.8086 mg/g and 0.7805 mg/g for 10 mg/L; 3.227 mg/g and 2.7554 mg/g for 100 mg/L respectively. The parameters estimation of the monocomponent isotherm, multicomponent isotherm models and kinetic models were carried out in the present study. Thus MCDI with LASAC electrode could be useful for treatment of low concentrated Cr(VI) and fluoride wastewater.