Nano-silver functionalized spherical activated carbon with enhanced dipropyl sulfide adsorption capacity and antibacterial properties

Yang, Zhilian; Zhang, Tianhao; Ren, Jiarui; Li, Jiawen; Ge, Jianlong; Shan, Haoru; Tao, Jianhua; Xu, Mingshen; Liu, Qixia

doi:10.1039/d2ra00124a

Cited by 9 publications

(3 citation statements)

References 47 publications

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“…However, due to the high toxicity and strict control of sulfur mustard, some chemicals such as dipropyl sulfide (DPS), with a similar chemical structure and lower toxicity, have also been used as a simulator of a chemical warfare agent for research in the lab [ 13 , 14 ]. For example, YANG et al [ 15 ] used nano-metal modified spherical activated carbon and used it as an adsorbent for the adsorption of DPS; the result showed that the equilibrium adsorption capacity of modified SAC towards DPS increased by 13.41% compared with that of pristine SAC, and the maximum adsorption capacity could be up to 34.34 mg/g. However, the spherical activated carbon used in protective clothing still suffers from some problems, such as its relatively low adsorption speed, its ease of falling off the cloth, and the insufficient utilization of pore structures due to the coverage of adhesive.…”

Section: Introductionmentioning

confidence: 99%

Facile Preparation of Polyacrylonitrile-Based Activated Carbon Fiber Felts for Effective Adsorption of Dipropyl Sulfide

Zhang,

He,

et al. 2024

Polymers

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Activated carbon fibers (ACFs) derived from various polymeric fibers with the characteristics of a high specific surface area, developed pore structure, and good flexibility are promising for the new generation of chemical protection clothing. In this paper, a polyacrylonitrile-based ACF felt was prepared via the process of liquid phase pre-oxidation, along with a one-step carbonization and chemical activation method. The obtained ACF felt exhibited a large specific surface area of 2219.48 m2/g and pore volume of 1.168 cm3/g, as well as abundant polar groups on the surface. Owing to the developed pore structure and elaborated surface chemical property, the ACF felt possessed an intriguing adsorption performance for a chemical warfare agent simulant dipropyl sulfide (DPS), with the highest adsorption capacity being 202.38 mg/g. The effects of the initial concentration of DPS and temperature on the adsorption performance of ACF felt were investigated. Meanwhile, a plausible adsorption mechanism was proposed based on the kinetic analysis and fitting of different adsorption isotherm models. The results demonstrated that the adsorption process of DPS onto ACF felt could be well fitted with a pseudo-second-order equation, indicating a synergistic effect of chemical adsorption and physical adsorption. We anticipate that this work could be helpful to the design and development of advanced ACF felts for the application of breathable chemical protection clothing.

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Section: Introductionmentioning

confidence: 99%

Facile Preparation of Polyacrylonitrile-Based Activated Carbon Fiber Felts for Effective Adsorption of Dipropyl Sulfide

Zhang,

He,

et al. 2024

Polymers

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“…10 As a new antibacterial material, nano Ag has excellent antibacterial stability, high activity, low toxicity and broad-spectrum antibacterial advantages. 11,12 The development of nano Ag and nano Ag-based composite materials has rapidly attracted extensive attention of researchers. Changing the physical and chemical properties of nano Ag can improve its germicidal efficacy, such as the particle size, dispersion, surface charge and other properties of nano Ag.…”

Section: Introductionmentioning

confidence: 99%

Insights into efficient bacterial inactivation over nano Ag/graphdiyne: dual activation of molecular oxygen and water molecules

Pan,

Zhang,

Pan

et al. 2023

Environ. Sci.: Nano

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“…This is especially true of metallic nanoparticles and the metal oxides that correspond to them, such as copper [16], silver [17], titanium oxide [18], and zinc oxide [19]. By impregnating activated carbon with silver or metallic oxides, it is possible to create a material having antibacterial properties [20,21]. Producing Ag NPs supported on an activated carbon matrix may be done in a number of methods.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and investigation on synergetic effect of activated carbon loaded silver nanoparticles with enhanced photocatalytic and antibacterial activity

Ragupathy

Ramasundaram

Krishnakumar³

et al. 2023

Preprint

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In this study, we used a cashew nut shell to successfully manufacture silver nanoparticle-loaded cashew nut shell activated carbon (Ag/CNSAC). XRD, XPS, SEM with EDS, FT-IR, and BET analysis are used to characterize the products' structural and chemical contents. The XRD, XPS, and EDS data provided convincing proof that Ag loaded on CNSAC formed. The energy dispersive spectrum analysis and X-ray diffraction pattern both supported the face-centered cubic and amorphous structures of Ag/CNSAC. The SEM micrographs showed inner surface development of Ag NPs and many tiny pores in CNSAC. The photodegradation of methylene blue (MB) dye by the Ag/CNSAC photocatalyst was investigated. This effective degradation of MB dye by Ag/CNSAC is attributed to the cooperative action of Ag as a photocatalyst and CNSAC as a catalytic support and adsorbent. In tests with gram-positive and negative bacteria including Escherichia coli (E. coli) and Staphylococcus (S. aureus), the as-product Ag/CNSAC showed outstanding antibacterial efficacy. Additionally, this study demonstrates a workable procedure for creating an affordable and efficient Ag/CNSAC for the photocatalytic eradication of organic contaminants.

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Nano-silver functionalized spherical activated carbon with enhanced dipropyl sulfide adsorption capacity and antibacterial properties

Abstract: A kind of functional composite was prepared by loading silver nanoparticles firmly on the surface of spherical activated carbon, which showed chemical adsorption properties for chemical warfare agents and satisfactory antibacterial activity.

Cited by 9 publications

References 47 publications

Facile Preparation of Polyacrylonitrile-Based Activated Carbon Fiber Felts for Effective Adsorption of Dipropyl Sulfide

Facile Preparation of Polyacrylonitrile-Based Activated Carbon Fiber Felts for Effective Adsorption of Dipropyl Sulfide

Insights into efficient bacterial inactivation over nano Ag/graphdiyne: dual activation of molecular oxygen and water molecules

Synthesis and investigation on synergetic effect of activated carbon loaded silver nanoparticles with enhanced photocatalytic and antibacterial activity

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