Facile and large-scale synthesis of functional poly(m-phenylenediamine) nanoparticles by Cu2+-assisted method with superior ability for dye adsorption

Zhang, Liyuan; Wang, Haiying; Yu, Wanting; Su, Zhen; Chai, Liyuan; Li, Jiehong; Shi, Weilong

doi:10.1039/c2jm32859c

Cited by 65 publications

(52 citation statements)

References 73 publications

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“…In a typical synthesis, Cu 2+ solution was firstly added into mPD solution, producing dark brown mixture immediately (within 5 s). As confirmed by our former research [36], the dark brown solution indicates the formation of Cu-mPD complex, due to the strong chelation ability of Cu 2+ with mPD. This feature can also be confirmed by UV-vis spectra, which will be discussed in this section.…”

Section: Resultssupporting

confidence: 84%

“…More importantly, Cu + species ($932.8 eV) was observed [59]. As reported, Cu 2+ , based on Cu(II)/Cu(I) couple, is capable to mediate electron transfer between ligands and oxidants [36,37]. The proposed pathway is that Cu 2+ firstly acts as electron receptor, producing Cu + as transient species.…”

Section: Resultsmentioning

confidence: 84%

“…The rGO was synthesized using 1 M NaBH 4 dissolved in 0.1 M NaOH solution as reducing agent with hydrothermal treatment at 95°C for 1 h [49]. PmPD particles were synthesized via the polymerization of mPD using Na 2 S 2 O 8 as oxidant [36].…”

Section: Preparation Of Pmpd/rgo Hydrogelmentioning

confidence: 99%

“…Metal ions, as coordinating centre, significantly enrich materials property and a specific application such as stimuli responsive, self-healing, attractive redox, and feasible assembly property can be obtained via deliberately selecting precursors [29][30][31][32]. As a proof of the concept, metal-ligand complex exhibits higher polymerization activity than monomer, due to the metal ions function on electron transfer between ligands and oxidants [33][34][35][36][37]. For instance, copper ions catalyzed the efficient polymerization of aniline using O 2 or H 2 O 2 as mild oxidants based on Cu(II)/Cu(I) couple [38,39].…”

Section: Introductionmentioning

confidence: 99%

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Section: Resultssupporting

confidence: 84%

Section: Resultsmentioning

confidence: 84%

Section: Preparation Of Pmpd/rgo Hydrogelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Cu–m-phenylenediamine complex induced route to fabricate poly(m-phenylenediamine)/reduced graphene oxide hydrogel and its adsorption application

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“…The functional poly(m-phenylenediamine) (PmPD) nanoparticles synthesized by Cu 2+ -assisted method showed an adsorption capacity for OG of 387.6 mg g −1 , which is on average 200 mg g −1 more than that of the microparticles obtained by traditional chemical oxidative polymerization [28].…”

Section: Introductionmentioning

confidence: 99%

Batch and fixed bed column studies on removal of Orange G acid dye by a weak base functionalized polymer

Dulman

Cucu-Man

Bunia³

et al. 2016

Desalination and Water Treatment

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The performance of a weak base anion-exchange resin in removing Orange G dye from aqueous solutions in batch and column system was investigated. The adsorption capacity was found to depend on: pH, dye concentration, contact time, adsorbent dosage, electrolyte presence and temperature. The adsorption equilibrium is best described by the non-linear Langmuir isotherm model. At the optimum pH of 2, the maximum adsorption capacity was 1,076 and 1,218 mg g −1 , at 20 and 50˚C, respectively. The adsorption kinetics could be described by the pseudo-second-order reaction model. The thermodynamic parameters indicated that adsorption is a spontaneous and endothermic process. FT-IR and SEM analyses provided additional information on adsorption mechanism and on morphological changes of the adsorbent. The breakthrough experimental results were processed by means of Thomas, Yoon-Nelson and Wolborska models. The reusability of the column was examined by conducting several cycles of adsorption and desorption (with 0.05 M NaOH).

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Magnetically Separable Fe₃O₄@poly(m‐phenylenediamine)@Cu₂O Nanocatalyst for the Facile Synthesis of 5‐phenyl‐[1,2,3]triazolo[1,5‐c]quinazolines

2022

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Herein we report a facile approach for the preparation of a magnetically separable Fe 3 O 4 @poly(m-phenylenediamine)-@Cu 2 O nanocatalyst and its catalytic efficiency in the synthesis of 5-phenyl-[1,2,3]triazolo [1,5-c]quinazolines from (E)-1-bromo-2-(2-nitrovinyl)benzenes, aldehydes, and sodium azide under mild reaction condition is described. The morphology, chemical composition, interior structure and magnetic properties of the Fe 3 O 4 @PmPDs@Cu 2 O nanocomposites were studied using powder X-ray diffraction, scanning electron microscopy, high resolution transmission electron microscopy, energy dispersive X-ray spectroscopy, X-ray photoelectron microscopy, vibrating sample magnetometer and nitrogen adsorption-desorption technique. The as-prepared Fe 3 O 4 @PmPDs@Cu 2 O nanocatalyst was simply recovered using external magnet and reused up to successive six runs with no obvious loss in its catalytic efficiency and structural integrity (confirmed by powder X-ray diffraction and transmission electron microscopy of recycled nanocatalyst) along with low leaching of copper (2.32 ppm) and iron (0.008 ppm) ions. The present protocol has a broad substrate scope with high yield in shorter reaction time and it does not require any additive or base. Overall, it has better green chemistry metrices like low E-factor (0.93), process mass intensity (1.93), high reaction mass efficiency (51.9 %) and carbon efficiency (95 %).

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Facile and large-scale synthesis of functional poly(m-phenylenediamine) nanoparticles by Cu2+-assisted method with superior ability for dye adsorption

Cited by 65 publications

References 73 publications

A Cu–m-phenylenediamine complex induced route to fabricate poly(m-phenylenediamine)/reduced graphene oxide hydrogel and its adsorption application

A Cu–m-phenylenediamine complex induced route to fabricate poly(m-phenylenediamine)/reduced graphene oxide hydrogel and its adsorption application

Batch and fixed bed column studies on removal of Orange G acid dye by a weak base functionalized polymer

Magnetically Separable Fe₃O₄@poly(m‐phenylenediamine)@Cu₂O Nanocatalyst for the Facile Synthesis of 5‐phenyl‐[1,2,3]triazolo[1,5‐c]quinazolines

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Facile and large-scale synthesis of functional poly(m-phenylenediamine) nanoparticles by Cu2+-assisted method with superior ability for dye adsorption

Cited by 65 publications

References 73 publications

A Cu–m-phenylenediamine complex induced route to fabricate poly(m-phenylenediamine)/reduced graphene oxide hydrogel and its adsorption application

A Cu–m-phenylenediamine complex induced route to fabricate poly(m-phenylenediamine)/reduced graphene oxide hydrogel and its adsorption application

Batch and fixed bed column studies on removal of Orange G acid dye by a weak base functionalized polymer

Magnetically Separable Fe3O4@poly(m‐phenylenediamine)@Cu2O Nanocatalyst for the Facile Synthesis of 5‐phenyl‐[1,2,3]triazolo[1,5‐c]quinazolines

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Magnetically Separable Fe₃O₄@poly(m‐phenylenediamine)@Cu₂O Nanocatalyst for the Facile Synthesis of 5‐phenyl‐[1,2,3]triazolo[1,5‐c]quinazolines