Assessment of adequate sodium hypochlorite concentration for pre‐oxidization of multi‐walled carbon nanotubes

Yang, Jhih-Ci; Yen, Chih−Hung; Wang, Wei-Jhih; Horng, Jao‐Jia; Tsai, Yung‐Pin

doi:10.1002/jctb.2359

Cited by 46 publications

(22 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A peak at 2320 cm ¡1 can be associated with À ÀOH stretching from strong HÀ ÀbondÀ ÀCOOH. The peak at 3422 cm ¡1 can be assigned to the -OH stretching vibration from carboxylic groups (19). The presence of these oxygencontaining groups confirms the occurrence of oxidation process that is in agreement with the results obtained from the Fig.…”

Section: Resultssupporting

confidence: 90%

See 1 more Smart Citation

Chemical Oxidation of Multi-Walled Carbon Nanotube by Sodium Hypochlorite for Production of Graphene Oxide Nanosheets

Abdolkarimi-Mahabadi

Manteghian

2015

Fullerenes, Nanotubes and Carbon Nanostructures

View full text Add to dashboard Cite

Carbon nanotubes (CNTs) were chemically oxidized to produce graphene oxide (GO) nanosheets via a simple method. Pristine CNTs were treated with sulfuric acid and acid-treated CNTs were oxidized with sodium hypochlorite (NaOCl) to obtain peeled CNTs and consequently GO nanosheets. Transmission electron microscopy and atomic force microscopy were used to determine the morphology of synthesized GO nanosheets and peeled CNTs, respectively. UV-vis spectroscopy, Raman spectroscopy, Fourier transform infrared, and thermal gravimetric analysis were used to characterize the product structure. The UV-vis spectroscopy revealed peak absorption at 245 nm, which is similar to what is seen on CNT unzipping in producing GO nano-ribbons.

show abstract

Section: Resultssupporting

confidence: 90%

“…Yang et al (19) applied adequate dosage of NaOCl to oxidize CNTs in adsorption performance. In addition, NaOCl oxidation of activated carbons for enhanced removal of Co (II) from aqueous solutions was reported by Liu et al (20).…”

Section: Introductionmentioning

confidence: 99%

Chemical Oxidation of Multi-Walled Carbon Nanotube by Sodium Hypochlorite for Production of Graphene Oxide Nanosheets

Abdolkarimi-Mahabadi

Manteghian

2015

Fullerenes, Nanotubes and Carbon Nanostructures

View full text Add to dashboard Cite

show abstract

“…The introduction of defect site that consist of oxygen functionalities ( e.g . carboxyl, carbonyl, and hydroxyl groups) by strong oxidizing agents, represents one common methodology employed to enhance the biocompatibility of CNTs [32, 33]. Carboxyl groups are attached to the graphitic backbone by one bond [34]; therefore, because it is necessary to cleave only a single bond, CNTs functionalized with these groups would therefore appeared most susceptible to enzymatic oxidation versus other functional groups.…”

Section: In Vitro Degradation Of Cnts Outside Living Systemsmentioning

confidence: 99%

Peroxidase-mediated biodegradation of carbon nanotubes in vitro and in vivo

Kotchey

Zhao

Kagan

et al. 2013

Advanced Drug Delivery Reviews

162

147

View full text Add to dashboard Cite

As a result of their unique electronic, optical, and mechanical properties, carbon nanotubes (CNTs) have been implemented in therapeutic and imaging applications. In an idealized situation, CNTs would be disposed of after they transport their theranostic payloads. Biodegradation represents an attractive pathway for the eliminating of CNT carriers post-delivery and may be integral in catalyzing the release of the cargo from the delivery vehicle. Accordingly, recent research efforts have focused on peroxidase-driven biodegradation of CNTs. In this review, we not only summarize recent efforts to biodegrade CNTs in the test tube, in vitro, and in vivo, but also attempt to explore the fundamental parameters underlying degradation. Encouraged by the in vivo results obtained to date, we envision a future, where carbon-based nano-containers, which are specifically designed to target organs/cells, deliver their cargo, and biodegrade via peroxidase-driven mechanism, will represent an attractive therapeutic delivery option in nanomedicine.

show abstract

“…2d) for E. coli removal, as confirmed by EDX (Table S1). Because bleach contains a strong oxidizer, sodium hypochlorite (NaOCl), that can potentially oxidize the MWCNTs2627, the incubation time of the MWCNT- E. coli films in the bleach solution was minimized (15 min) to effectively lyse the microbes while minimizing the oxidative damage to MWCNTs.…”

Section: Resultsmentioning

confidence: 99%

Biotemplating pores with size and shape diversity for Li-oxygen Battery Cathodes

Özgit-Akgün

Akca

et al. 2017

Sci Rep

View full text Add to dashboard Cite

Synthetic porogens provide an easy way to create porous structures, but their usage is limited due to synthetic difficulties, process complexities and prohibitive costs. Here we investigate the use of bacteria, sustainable and naturally abundant materials, as a pore template. The bacteria require no chemical synthesis, come in variable sizes and shapes, degrade easier and are approximately a million times cheaper than conventional porogens. We fabricate free standing porous multiwalled carbon nanotube (MWCNT) films using cultured, harmless bacteria as porogens, and demonstrate substantial Li-oxygen battery performance improvement by porosity control. Pore volume as well as shape in the cathodes were easily tuned to improve oxygen evolution efficiency by 30% and double the full discharge capacity in repeated cycles compared to the compact MWCNT electrode films. The interconnected pores produced by the templates greatly improve the accessibility of reactants allowing the achievement of 4,942 W/kg (8,649 Wh/kg) at 2 A/ge (1.7 mA/cm2).

show abstract

Assessment of adequate sodium hypochlorite concentration for pre‐oxidization of multi‐walled carbon nanotubes

Cited by 46 publications

References 29 publications

Chemical Oxidation of Multi-Walled Carbon Nanotube by Sodium Hypochlorite for Production of Graphene Oxide Nanosheets

Chemical Oxidation of Multi-Walled Carbon Nanotube by Sodium Hypochlorite for Production of Graphene Oxide Nanosheets

Peroxidase-mediated biodegradation of carbon nanotubes in vitro and in vivo

Biotemplating pores with size and shape diversity for Li-oxygen Battery Cathodes

Contact Info

Product

Resources

About