The effect of activated carbon fiber structure and loaded copper, cobalt, silver on the adsorption of dichloroethylene

Shen, Wenzhong; Guo, Qingjie; Zhang, Yanshu; Liu, Yin; Zheng, Jingtang; Cheng, Jian; Fan, J.

doi:10.1016/j.colsurfa.2005.08.010

Cited by 28 publications

(6 citation statements)

References 16 publications

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“… 18 ) and activated carbon for these metal ions are also shown in Figure 5c . It clearly indicates that the maximum uptake capacities of activated BN are significantly larger than that of the porous BN and activated carbon reported in the literatures 33 34 35 36 . We believe that different from the activated carbon with covalent C-C bonds, our activated BN with polar B-N bonds is more suitable for the metal ion chemisorption, since the activated BN exhibits the “lop-sided” densities characteristic of ionic B-N bonding, and the polyelectron nitride can transfer more electron density to the metal ions.…”

Section: Resultsmentioning

confidence: 55%

Activated boron nitride as an effective adsorbent for metal ions and organic pollutants

Xiao

et al. 2013

Sci Rep

220

165

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Novel activated boron nitride (BN) as an effective adsorbent for pollutants in water and air has been reported in the present work. The activated BN was synthesized by a simple structure-directed method that enabled us to control the surface area, pore volume, crystal defects and surface groups. The obtained BN exhibits an super high surface area of 2078 m2/g, a large pore volume of 1.66 cm3/g and a special multimodal microporous/mesoporous structure located at ~ 1.3, ~ 2.7, and ~ 3.9 nm, respectively. More importantly, the novel activated BN exhibits an excellent adsorption performance for various metal ions (Cr3+, Co2+, Ni2+, Ce3+, Pb2+) and organic pollutants (tetracycline, methyl orange and congo red) in water, as well as volatile organic compounds (benzene) in air. The excellent reusability of the activated BN has also been confirmed. All the features render the activated BN a promising material suitable for environmental remediation.

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Section: Resultsmentioning

confidence: 55%

Activated boron nitride as an effective adsorbent for metal ions and organic pollutants

Xiao

et al. 2013

Sci Rep

220

165

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“…Efforts to generate engineered BC which retains well-customized pore dimensions, and wider structural heterogeneity have been excreted. One of the effective approaches to stimulate meso- and macropore formation is activation via transition metals which act by pitting holes in the carbonaceous matrix [ 33 , 34 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Application of Cobalt Oxide (Co3O4)-Impregnated Olive Stones Biochar for the Removal of Rifampicin and Tigecycline: Multivariate Controlled Performance

El-Shafie

Ahsan

Radhwani³

et al. 2022

Nanomaterials

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Cobalt oxide (Co3O4) nanoparticles supported on olive stone biochar (OSBC) was used as an efficient sorbent for rifampicin (RIFM) and tigecycline (TIGC) from wastewater. Thermal stabilities, morphologies, textures, and surface functionalities of two adsorbents; OSBC and Co-OSBC were compared. BET analysis indicated that Co-OSBC possesses a larger surface area (39.85 m2/g) and higher pore-volume compared to the pristine OSBC. FT-IR analysis showed the presence of critical functional groups on the surface of both adsorbents. SEM and EDX analyses showed the presence of both meso- and macropores and confirmed the presence of Co3O4 nanoparticles on the adsorbent surface. Batch adsorption studies were controlled using a two-level full-factorial design (2k-FFD). Adsorption efficiency of Co-OSBC was evaluated in terms of the % removal (%R) and the sorption capacity (qe, mg/g) as a function of four variables: pH, adsorbent dose (AD), drug concentration, and contact time (CT). A %R of 95.18% and 75.48% could be achieved for RIFM and TIGC, respectively. Equilibrium studies revealed that Langmuir model perfectly fit the adsorption of RIFM compared to Freundlich model for TIGC. Maximum adsorption capacity (qmax) for RIFM and TIGC was 61.10 and 25.94 mg/g, respectively. Adsorption kinetics of both drugs could be best represented using the pseudo-second order (PSO) model.

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“…In practical applications [6][7][8], there are three key points in the preparation of the metal/ACF materials: (1) conserving the high specific surface area of the ACF after metal loading, (2) high antibacterial activity and (3) high washing resistance. As reported in the literature [9][10][11][12][13][14][15][16], reprocessing is regularly used to load nano-silver particles onto the surface of ACF, that is, Ag-containing processing was carried out after preparation of ACF. The problems of reprocessing are: (1) the silver particles have low washing resistance because of the weak bonding between Ag particles and ACF, (2) the nano-silver particles have nonuniform distribution on the surface of ACF, (3) some impurities will be introduced into the ACF during reprocessing and they are difficult to remove.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Ag-containing ACF and its Application for Dye Removal

Yao

Zhang

et al. 2017

Journal of Engineered Fibers and Fabrics

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Silver containing activated carbon fiber (Ag/ACF) has excellent adsorption properties for removing dyes. Silver particles are loaded onto ACF after carbonization and activation at present, and the fibers have low washing resistance and impurities are introduced onto ACF. In this research, pre-treatment techniques were used. Nano-silver solution with a particle size about 10 nm was prepared by using β-cyclodextrin as a stabilizer and reducer, and then the nano-silver solution was used as pretreatment liquid for modifying viscose fiber. Nano-silver particles with functional groups have high activity and can be readily adsorbed on the surface of viscose fibers. Ag/ACF was successfully prepared by carbonizing and activating the Ag-containing viscose fiber. The number and content of nano-silver particles on the surface of ACF was controlled by changing the concentration of nano-silver solution. The results show that the Ag/ACF have a high washing resistance and more efficiently remove methyl orange (MO) and methylene blue (MB) than ACF.

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The effect of activated carbon fiber structure and loaded copper, cobalt, silver on the adsorption of dichloroethylene

Cited by 28 publications

References 16 publications

Activated boron nitride as an effective adsorbent for metal ions and organic pollutants

Activated boron nitride as an effective adsorbent for metal ions and organic pollutants

Synthesis and Application of Cobalt Oxide (Co3O4)-Impregnated Olive Stones Biochar for the Removal of Rifampicin and Tigecycline: Multivariate Controlled Performance

Preparation of Ag-containing ACF and its Application for Dye Removal

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