Carbon material from polyvinyl chloride as an adsorbent of 2,4-dichlorophenoxyacetic acid

Vedenyapina, M. D.; Kryazhev, Yu. G.; Raiskaya, E. A.; Kulaishin, S. A.; Vedenyapin, A. A.; Лапидус, А. Л.

doi:10.3103/s0361521917040115

Cited by 6 publications

(3 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Solodovnichenko proposed a three‐step method for preparing carbon materials from polyvinyl chloride: dissolving polyvinyl chloride, dehydrochlorinating the PVC solution in the presence of potassium hydroxide and subsequent carbonization at relatively low temperatures. Vedenyapina fabricated carbon adsorbent from PVC through alkaline dehydrochlorination and subsequent heat treatment for the adsorption of 2, 4‐dichlorophenoxyacetic acid (2, 4‐D) from aqueous solutions. Bai prepared a kind of carbon materials through electro‐spinning of PVC solution followed by pyrolysis of the fibers.…”

Section: Introductionmentioning

confidence: 99%

Effects of Carbonization Conditions on Structure and Gas Adsorption of Carbon Membranes Derived from Polyvinyl Chloride

Zhao

Chen

et al. 2020

ChemistrySelect

View full text Add to dashboard Cite

Carbon membranes were fabricated through the pre-oxidation and pyrolysis of polyvinyl chloride (PVC). Their chemical composition and structure morphology were characterized using FTIR, SEM and XRD; their CO 2 and N 2 adsorption isotherms were measured at 25°C. The experimental results showed that heating rate and holding time have great influences on the pore structure during the pre-oxidation process as well as the carbonization process. The pore structure of the carbon membrane is also influenced by carbonization temperature. The carbon membrane obtained at 700°C has the largest CO 2 adsorption capacity of 1.45 mmol/g at 101 kPa. The carbon membrane prepared at heating rate of 3°C/min and holding time of 0.5 h at 800°C displayed an excellent adsorption selectivity of CO 2 over N 2 evidenced by the fact that its CO 2 adsorption capacity could reach 1.1 mmol/g and while it does not significantly adsorb N 2 .

show abstract

Section: Introductionmentioning

confidence: 99%

Effects of Carbonization Conditions on Structure and Gas Adsorption of Carbon Membranes Derived from Polyvinyl Chloride

Zhao

Chen

et al. 2020

ChemistrySelect

View full text Add to dashboard Cite

show abstract

“…2,4‐Dichlorophenoxyacetic acid (2,4D) is the third most widely used herbicide worldwide . Considering the fact that 2,4D has a carboxyl structure and the amino group of NHSH grafted onto the PDA nanosphere retains its reactivity, they can form an amide bond via a condensation reaction between the carboxyl and amino groups.…”

Section: Introductionmentioning

confidence: 99%

“…2,4-Dichlorophenoxyacetic acid (2,4D) is the third most widely used herbicide worldwide. [22][23][24] Considering the fact that 2,4D has a carboxyl structure and the amino group of NHSH grafted onto the PDA nanosphere retains its reactivity, they can form an amide bond via a condensation reaction between the carboxyl and amino groups. The amide bond makes the connection between the vehicle and cargo behave much more stably and makes it less susceptible to chemical hydrolysis.…”

Section: Introductionmentioning

confidence: 99%

Preparation of 2,4‐dichlorophenoxyacetic acid loaded on cysteamine‐modified polydopamine and its release behaviors

Shen

Zhou

Sun

et al. 2019

J of Applied Polymer Sci

View full text Add to dashboard Cite

With dopamine as the monomer, the model pesticide 2,4-dichlorophenoxyacetic acid (2,4D) was loaded on cysteamine (NHSH)-modified polydopamine (PDA) nanospheres [2,4-dichlorophenoxyacetic acid bound to cysteamine-modified polydopamine (2,4D-PDA-NHSH)] via the construction of amide bonds. We investigated the materials' structure, adhesive capability, and release behaviors, especially the mechanism of the release processes. The results demonstrate that the materials were spherical in appearance and adhesive. 2,4D loaded on the PDA vehicle was amorphous in structure. The amide bond between PDA and 2,4D generated by NHSH not only enhanced the loading amount of PDA from 296.28 to 692.56 mg/g but also decreased the thermal stability from 291 to 230 C. The 2,4D-PDA-NHSH showed no pH responsiveness, whereas the PDA system without NHSH modification exhibited pH sensitivity. A mechanism for the observed behaviors was suggested. First-order, logistic, Weibull, and Korsmeyer-Peppas models were applied to describe the release behaviors at different pH values.

show abstract

Influence of the porous structure and functionality of the MIL type metal-organic frameworks and carbon matrices on the adsorption of 2,4-dichlorophenoxyacetic acid

et al. 2021

View full text Add to dashboard Cite

Carbon material from polyvinyl chloride as an adsorbent of 2,4-dichlorophenoxyacetic acid

Cited by 6 publications

References 21 publications

Effects of Carbonization Conditions on Structure and Gas Adsorption of Carbon Membranes Derived from Polyvinyl Chloride

Effects of Carbonization Conditions on Structure and Gas Adsorption of Carbon Membranes Derived from Polyvinyl Chloride

Preparation of 2,4‐dichlorophenoxyacetic acid loaded on cysteamine‐modified polydopamine and its release behaviors

Influence of the porous structure and functionality of the MIL type metal-organic frameworks and carbon matrices on the adsorption of 2,4-dichlorophenoxyacetic acid

Contact Info

Product

Resources

About