Synthesis of polyaniline by using CuCl2 as oxidizing agent

Bowmaker, Graham A.; Laslau, Cosmin; Waterhouse, Geoffrey I. N.; Žujović, Zoran D.; Ali, Khurshid; Shah, Anwar‐ul‐Haq Ali; Travaš-Sejdić, Jadranka

doi:10.1016/j.synthmet.2014.10.005

Cited by 24 publications

(13 citation statements)

References 38 publications

(70 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In the spectrum of PANI, the band at 325–338 nm is due to π-π* transitions of the benzenoid ring and the band at 660–680 nm is attributed to excitation of the quinoid ring [59]. The spectrum of PANI/Fe 3 O 4 composites shows a small band at 441 nm due to doping of benzenoid amine with Fe 3 O 4 particles, while the band at 770 nm is due to the change from polaron to bipolaron state, suggesting interactions between PANI and Fe 3 O 4 materials, which is in close resemblance to the already reported results [60,61].…”

Section: Resultsmentioning

confidence: 99%

Basic Blue Dye Adsorption from Water Using Polyaniline/Magnetite (Fe3O4) Composites: Kinetic and Thermodynamic Aspects

et al. 2019

Self Cite

View full text Add to dashboard Cite

Owing to its exciting physicochemical properties and doping–dedoping chemistry, polyaniline (PANI) has emerged as a potential adsorbent for removal of dyes and heavy metals from aqueous solution. Herein, we report on the synthesis of PANI composites with magnetic oxide (Fe3O4) for efficient removal of Basic Blue 3 (BB3) dye from aqueous solution. PANI, Fe3O4, and their composites were characterized with several techniques and subsequently applied for adsorption of BB3. Effect of contact time, initial concentration of dye, pH, and ionic strength on adsorption behavior were systematically investigated. The data obtained were fitted into Langmuir, Frundlich, Dubbanin-Rudiskavich (D-R), and Tempkin adsorption isotherm models for evaluation of adsorption parameters. Langmuir isotherm fits closely to the adsorption data with R2 values of 0.9788, 0.9849, and 0.9985 for Fe3O4, PANI, and PANI/Fe3O4 composites, respectively. The maximum amount of dye adsorbed was 7.474, 47.977, and 78.13 mg/g for Fe3O4, PANI, and PANI/Fe3O4 composites, respectively. The enhanced adsorption capability of the composites is attributed to increase in surface area and pore volume of the hybrid materials. The adsorption followed pseudo second order kinetics with R2 values of 0.873, 0.979, and 0.999 for Fe3O4, PANI, and PANI/Fe3O4 composites, respectively. The activation energy, enthalpy, Gibbs free energy changes, and entropy changes were found to be 11.14, −32.84, −04.05, and −0.095 kJ/mol for Fe3O4, 11.97, −62.93, −07.78, and −0.18 kJ/mol for PANI and 09.94, −74.26, −10.63, and −0.210 kJ/mol for PANI/Fe3O4 respectively, which indicate the spontaneous and exothermic nature of the adsorption process.

show abstract

Section: Resultsmentioning

confidence: 99%

Basic Blue Dye Adsorption from Water Using Polyaniline/Magnetite (Fe3O4) Composites: Kinetic and Thermodynamic Aspects

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…Анализ XPS позволил распознать наличие различных азотогрупп в составе композитов и определить их вклад. В спектрах линии N 1s обoих композитов присутствуют четыре компоненты, связаные с нейтральными и положительно заряженными иминными и аминными группами [13,23,25]. Иминный азот проявляется в спектрах в виде слабоинтенсивной компоненты в низкоэнергетической области спектров N 1s (398.4 eV).…”

Section: результаты и обсужденияunclassified

“…Полоса поглощения около 1240 сm −1 связана с колебаниями связи C−N +[17]. Полоса поглощения при 1128 сm −1 в спектре ПА-НИ, по-видимому, связана с колебаниями фрагмента B−NH + −Q[19] [23]. (электронные переходы N1s → σ * ), тогда как в области состояний π * (электронные переходы N1s → π * ) в спектрах наблюдаются различия.…”

unclassified

Электронная Структура Полианилина, Модифицированного Солями Меди И Циркония

Шматко¹,

Мясоедова²,

Яловега³

2020

Журнал Технической Физики

View full text Add to dashboard Cite

The results of spectroscopic studies of the electronic structure and chemical bonds of PANI - Me composites (Me - Cu, Zr) are presented. X-ray absorption spectroscopy, X-ray photoelectron spectroscopy, IR spectroscopy were used for research. It was established that regardless of which modifying additive polyaniline is used in composites is in partially oxidized form, however, in PANI - Zr is more oxidized than in PANI - Cu. The chemical states of nitrogen in the composites are determined; a different ratio of neutral and charged nitrogen groups is observed.

show abstract

“…13,17,18 Considering these numerous applications, it is worth mentioning that there is no report on the synthesis of the poly(4,4′-diaminodiphenylmethane) (PDDM) polymer by using CDs as initiators. In the case of the polymerization of aromatic amino compounds, the use of initiators such as persulfate salts and chloride salts 19−21 is problematic due to their toxicity and strong oxidation. In the present study, we established a method for the polymerization of 4,4′-diaminodiphenylmethane (DDM) with the help of CDs and UV light.…”

Section: Introductionmentioning

confidence: 99%

Carbon Dot Initiated Synthesis of Poly(4,4′-diaminodiphenylmethane) and Its Methylene Blue Adsorption

Maruthapandi

Kumar

2018

ACS Omega

View full text Add to dashboard Cite

Carbon dots (CDs) can generate free radicals in aqueous solutions which lead to their unique properties and many applications. The main goal of the current study is to employ CDs as initiators for the polymerization of the monomer 4,4′-diaminodiphenylmethane. Efforts have been recently focused on developing a polymerization process by using a facile one-step synthesis using HNO 3 , CDs, and UV light as initiators. Here, this acidic polymerization process is similarly carried out by using just UV light and CDs with no other initiator. The newly synthesized poly(4,4′-diaminodiphenylmethane) (PDDM) was confirmed by several analytical techniques, including X-ray diffraction, scanning electron microscopy, Fourier-transform infrared spectroscopy, thermogravimetric analysis, and solid-state NMR spectra. The synthesis of PDDM was further probed for dye adsorption and it was found that the polymer well adsorbs methylene blue. Adsorption experiments were carried out by changing different parameters such as the initial concentration of methylene blue and the contact time for which the reaction progress was monitored by UV–visible spectroscopy.

show abstract

Synthesis of polyaniline by using CuCl2 as oxidizing agent

Cited by 24 publications

References 38 publications

Basic Blue Dye Adsorption from Water Using Polyaniline/Magnetite (Fe3O4) Composites: Kinetic and Thermodynamic Aspects

Basic Blue Dye Adsorption from Water Using Polyaniline/Magnetite (Fe3O4) Composites: Kinetic and Thermodynamic Aspects

Электронная Структура Полианилина, Модифицированного Солями Меди И Циркония

Carbon Dot Initiated Synthesis of Poly(4,4′-diaminodiphenylmethane) and Its Methylene Blue Adsorption

Contact Info

Product

Resources

About