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activated carbon modification with surfactants

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  • (PDF) Assessment of Surfactant Modified Activated Carbon ...

    n and SDS modified activated carbon respectively at pH 2 we re 0.065, 0.075, and. 0.09 mmol/g but increased steadily to 0.13, 0.140 and 0.200 mmol/g …

  • Activated Carbon by Surfactant Modification

    In wastewater treatment, activated carbon modified by surfactant is used as an adsorbent to remove various pollutants, including organic pollutants [26,27], reactive dyes …

  • Review of modifications of activated carbon for enhancing ...

    Due to its versatility and wide range of applications, activated carbon is widely used as contaminant removal media. Recent research have focused on enhancing the effectiveness of activated carbon by modifying their specific properties in order to enable the carbon to develop affinity for certain contaminants. In view of this, a comprehensive list of literatures on chemical, …

  • Microwave-assisted modification of activated carbon …

    2018-1-25 · Microwave-assisted modification of activated carbon with cationic surfactants for enhancement of naphthalene adsorption Zhonghai Sun, Zhansheng Wu†, Dandan Liu, and Xiufang He School of Chemistry and Chemical Engineering/The Key Lab. for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi 832003, P. R. China

  • Gemini Surfactant-Modified Activated Carbon for ...

    The removal efficiency of the surfactant-modified activated carbon through adsorption of chromium (VI) was investigated under controlled laboratory conditions. Fourier-transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM) were used to investigate the surface changes of surfactant-modified activated carbon.

  • Anionic surfactant modification of activated carbon for ...

    2018-10-15 · Surfactant modification improves NH 4 + adsorption capacity of activated carbon (AC).. Surfactants used for modification are stably bound to AC. • SDS and SDBS provide AC with ion exchange sites favorable for NH 4 + adsorption.. Inhibition effect of competing ions at the same concentration as NH 4 + is negligible.

  • Nitric acid-anionic surfactant modified activated carbon ...

    2018-10-1 · The authors used a nitric acid (HNO 3)-sodium dodecyl benzene sulfonate (SDBS) method to modify a lignite-based activated carbon.These modified carbons were appraised for their removal of Cd(II) from aqueous solutions. Response surface methodology was employed to optimize the preparation factors including nitric acid concentration C N, temperature T and …

  • overview of the modification methods of activated carbon ...

    In this paper, these modification methods have been reviewed and the potential of surface modified activated carbons towards water treatment has been discussed. This review article is aimed at providing precise information on efforts made by various researchers in the field of surface modification of activated carbon for water pollution control.

  • IOP-JCC-12 A Arnelli

    of both surfactants trapped onto activated carbon. Table 1 indicates that the adsorption SLS and HDTMA-Br by activated carbon occurred at the optimum time of 4 hours. The adsorption of both surfactants increased insignificantly after 4 hours. It shows that at the time of 4 hours, the activated carbon optimally absorbed surfactants. Table 1.

  • Properties of Avermectin Delivery System Using Surfactant ...

    2018-1-31 · Properties of Avermectin Delivery System Using Surfactant-Modified Mesoporous Activated Carbon as a Carrier Journal of Nanomaterials ( IF 2.986) Pub Date : 2018-01-31, DOI: 10.1155/2018/3038902

  • Surface-modified spherical activated carbon for high ...

    2016-6-29 · We have synthesized a new type of activated carbon (AC) containing ion-selective functional groups, trimethylammonium (AC-N) for anodes and sulfonate (AC-S) for cathodes, for high carbon loading of flow-electrodes. The AC-N and AC-S were partially covered with a 50 nm-thick polymer layer and their surfaces became m

  • Adsorption of Cr(VI) onto cationic surfactant-modified ...

    Highly toxic oxyanions, such as hexavalent chromium (Cr(VI)), have caused adverse effects on human health. This study evaluated the feasibility of using cationic surfactant-modified activated carbon (AC) to remove Cr(VI). To modify activated carbon using a cationic surfactant, AC was mixed with a su …

  • Microwave-assisted modification of activated carbon with ...

    2017-12-7 · Polycyclic aromatic hydrocarbons (PAHs) are toxic pollutants harmful to humans. To improve the adsorption capacity of PAHs on activated carbon (AC) from the aqueous system, AC was modified with cationic surfactants through microwave heating. Naphthalene is a typical PAH used as a model pollutant to test the adsorption properties of sample; the sample with the best …

  • Enhanced surface activity of activated carbon by ...

    2016-6-29 · We have synthesized a new type of activated carbon (AC) containing ion-selective functional groups, trimethylammonium (AC-N) for anodes and sulfonate (AC-S) for cathodes, for high carbon loading of flow-electrodes. The AC-N and AC-S were partially covered with a 50 nm-thick polymer layer and their surfaces became m

  • Adsorption of Cr(VI) onto cationic surfactant-modified ...

    Highly toxic oxyanions, such as hexavalent chromium (Cr(VI)), have caused adverse effects on human health. This study evaluated the feasibility of using cationic surfactant-modified activated carbon (AC) to remove Cr(VI). To modify activated carbon using a cationic surfactant, AC was mixed with a surfactant solution of 0.5 critical micelle concentration (CMC), at which …

  • Effect of surface modification of anode with surfactant on ...

    However, when the surface of exfoliated graphite was modified with over 10‐mM anionic surfactant, some negative effects on start‐up time, activation resistance and maximum power density were observed. This modification also enhanced the bacterial attachment and biofilm formation on the modified anode surface.

  • Modification of Activated Carbon for the Adsorption of ...

    2021-7-9 · 117 Modification of Activated Carbon for the Adsorption of Humic Acid H.M.B. Eustáquio1,2,*, Christian W. Lopes2, Rafael S. da Rocha2, Brena D. Cardoso2 and Sibele B.C. Pergher 2 (1) Laboratório de Peneira Moleculares (LABPEMOL), Universidade Federal do Rio Grande do Norte, Avenida Senador Salgado Filho, 3000, Campus Universitário, CEP 59078 …

  • Effect of surface modification of anode with surfactant on ...

    2015-1-1 · Surface modification of anode using surfactant has great influence on the electrical performance of a microbial fuel cell (MFC). In this study, the effect of surface‐modified exfoliated graphite used for anode fabrication on a cube‐type MFC batch reactor was examined. The surface exfoliated graphite was modified with 5‐mM anionic surfactant, sodium dodecyl sulfate. …

  • A Surfactant-based Method for Carbon Coating of LiNi …

    A LiNi 0.8Co0.15Al0.05O2 (LNCAO/C) active material composite cathode was coated with carbon. The conductive carbon coating was obtained by addition of surfactant during synthesis. The addition of surfactant led to the formation of an amorphous carbon coating layer on the pristine LNCAO surface.

  • Activated carbon filtration systems

    2021-10-20 · Activated carbon filtration systems. Activated carbon filters are can retain free chlorine, chlorinated compounds, ozone, surfactants, solvents, pesticides and other organic pollutants present in water. The pressure filter consists of a device with a cylindrical body and two pseudo-elliptic convex ends, constructed in painted carbon steel or ...

  • Assessment of Surfactant Modified Activated Carbon for ...

    Assessment of Surfactant Modified Activated Carbon for ...

  • Performance of surfactant‐modified activated carbon ...

    2018-11-29 · Performance of surfactant-modified activated carbon prepared from dates wastes for nitrate removal from aqueous solutions Ouiza Allalou, Laboratory of Reaction Engineering, University of Sciences and Technology Houari – …

  • Nitric acid-anionic surfactant modified activated carbon ...

    It was confirmed that the developed surface area, functional groups and negative charges were mainly responsible for the higher adsorption capacity for the LAC that have been more favorably tailored by this HNO3-SDBS protocol. The authors used a nitric acid (HNO3)-sodium dodecyl benzene sulfonate (SDBS) method to modify a lignite-based activated carbon.

  • Supercapacitor studies of activated carbon functionalized ...

    Supercapacitor studies of activated carbon functionalized with poly(ethylene dioxythiophene): Effects of surfactants, electrolyte concentration on electrochemical ...

  • Graphene Sheets with Modified Surface by Sodium …

    2016-9-29 · Chemical modification of graphene dispersion by surfactants in the content of man-ufacturing and commercialization was reported [13]. Sodium lauryl sulphate (SLS)modified activated carbon from risk husk for waste- lead (Pb) removal was synthesized by using of series of treatments, such as: carbonization, ac-tivation with H 3PO

  • Adsorption CO2 on Activated Carbon with Surface ...

    The success of CO2 capture from flue gas with solid sorbent is dependent of a low cost sorbent with high CO2 adsorption capacity and selectivity. Modifying surface texture of activated carbon with impregnating amines is expected to offer the benefits of liquid amines in the typical adsorption process routes. In this work, cocoanut activate carbon (AC) is firstly alkalified by …

  • Removal characteristics of reactive black 5 using ...

    Cationic surfactant could enhance sorption capacity of RB5 on activated carbon, and the extent of enhancement is highly dependent on pore size distribution of activated carbon. Authors Kitae Baek (5), Do-Hyung Kim (3), Chil-Sung Jeon (1), Min-Chul Shin (3), Hyun-Dock Choi (1) Tags. Surface modification (7) ...

  • Surface modification of activated carbon by surfactants ...

     · Adsorption of surfactants is widely used for surface modification of different materials. Using of the mixtures of the surfactants in many cases is more attractive compared with single surfactants, however composition of mixed adsorption layers at solid surface was not sufficiently studied yet. In this work, the mutual effect of anionic and nonionic surfactants on the …

  • Surface modification of activated carbon by surfactants ...

    Adsorption of surfactants is widely used for surface modification of different materials. Using of the mixtures of the surfactants in many cases is more attractive compared with single surfactants, however composition of mixed adsorption layers at solid surface was not sufficiently studied yet. In this work, the mutual effect of anionic and nonionic surfactants on the composition of the …

  • SURFACE MODIFICATIONS OF ACTIVATED CARBON AND …

    2017-12-26 · The main and new surface modification methods of activated carbon (AC) and their influence on application (adsorption capacity) were reviewed. Adsorption capacity is an important issue, contributing to hazardous substances environment management. According to literature, it is true that surface chemistry strongly affects adsorption capacity.

  • Adsorption of Surfactants on Activated Carbons. VS* 1.

    distributionof the activated carbon. The ad-sorption in low concentration occurs in mi-cropores and the adsorption in high concen-tration occurs in large pores. It can be seen from Fig.-1 that the carbon [B] has the sec-ond peak in the range of pore size from 2 to 5 nm.

  • SURFACE MODIFICATIONS OF ACTIVATED CARBON AND …

    2021-9-6 · The main and new surface modification methods of activated carbon (AC) and their influence on application (adsorption capacity) were reviewed. Adsorption capacity is an important issue, contributing to hazardous substances environment management. According to literature, it is true that surface chemistry strongly affects adsorption capacity.

  • Modification of activated carbon using urea to enhance …

    2021-9-22 · The best modification effect was achieved at a modification temperature of 600 °C, an impregnation ratio of urea to activated carbon of 1:1, and with high-temperature treatment for 2 h. The mesopore volume of the modified activated carbon (AC600) reached 0.38 cm 3 /g, accounting for 57.58% of the total pore volume.

  • Anionic surfactant modification of activated carbon for ...

    The potential of anionic surfactant-modified ACs as the excellent adsorbents for ammonium removal from water is shown. This study investigates the effect of anionic surfactant modification on activated carbon (AC) to enhance the adsorption of ammonium ion in aqueous solution. Sodium dodecyl sulfate (SDS), sodium dodecyl benzene sulfonate (SDBS) or sodium …

  • Gemini Surfactant-Modified Activated Carbon for ...

    2018-2-7 · water Communication Gemini Surfactant-Modified Activated Carbon for Remediation of Hexavalent Chromium from Water Yingying Zhou 1,2, Zhenghua Wang 1,2,* ID, Andrew Hursthouse 1,3 ID and Bozhi Ren 1,2 1 Hunan Provincial Key Laboratory of Shale Gas Resource Exploitation, Xiangtan 411201, China; [email protected] (Y.Z.); …

  • Assessment of Surfactant Modified Activated Carbon for ...

    The modified activated carbon usually shows maximum contaminant uptake around its critical micelles concentration. Surfactant modification reduces specific surface area and/or micro pore volume but hot NaOH or HNO 3 treatment before surfactant modification minimises this drawbacks and increases the net surface charge.

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