Dielectric, magnetic and photocatalytic activity of PolyPyrrole/Prussian red nanocomposite for waste water treatment applications

Rizvi, Masood Ahmad; Moosvi, Syed Kazim; Jan, Tabee; Bashir, Shabnum; Kumar, Promod; Roos, W.; Swart, H.C.

doi:10.1016/j.polymer.2018.12.044

Cited by 34 publications

(17 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There are several ways to improve the photocatalytic properties of PPy, for instance, compositing it with semiconductors, 9,19 conductive material (i.e., carbon nanotubes, CNTs), 20 or other excellent photodegradation materials. 21,22 The combination of PPy with CNTs was believed to be one the most effective route to enhance the photocatalysis activity, i.e., by means of decreasing the bandgap energy. At the same time, due to their excellent electronic properties, CNTs was also discovered as an effective additive for the degradation of dyes such as MB, 23 acetaminophen, 24 methyl orange (MO), 25 RhB, 26 reactive black 5, 27 dianix blue and vat green 1 dyes, 28 as well as sunset yellow and congo red.…”

Section: Introductionmentioning

confidence: 99%

High efficient degradation of organic dyes by polypyrrole‐multiwall carbon nanotubes nanocomposites

Pang

Arsad

Ahmadipour

et al. 2022

Polymers for Advanced Techs

View full text Add to dashboard Cite

Over the years, there has been an emphasis on the improvement of novel materials for photocatalytic processes for practical application in treating wastewater. In this sense, the ultrasonic-assisted in-situ chemical polymerization route was used to synthesize polypyrrole-multiwall carbon nanotubes (PPy-MWCNTs) nanocomposites. The transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and ultraviolet visible (UV-vis) analysis were employed to study the impact of MWCNTs on the properties of PPy. TEM showed that the PPy-MWCNTs nanocomposites consist of spherical PPy with 80 nm particle size, while the MWCNTs showed inner and outer diameters of 7 nm and 13 nm, respectively. XRD analysis showed that the crystallinity of the PPy increased with MWCNTs loading. The potential of PPy-MWCNTs nanocomposites as photocatalysts was evaluated via the photodegradation of rhodamine B (RhB) and methylene blue (MB) dyes. The photodegradation efficiency was found to have improved with increasing MWCNTs loading. Almost 99.36% and 78.30% of RhB and MB dye degradation were achieved after 35 min of reaction for the highest loading of MWCNTs. The remarkable nanocomposite photocatalytic activity was attributed to the optical bandgap energy (E g ) reduction with the addition of MWCNTs. These results foreshadow the potential use of the PPy-MWCNTs nanocomposites for water purification.

show abstract

Section: Introductionmentioning

confidence: 99%

High efficient degradation of organic dyes by polypyrrole‐multiwall carbon nanotubes nanocomposites

Pang

Arsad

Ahmadipour

et al. 2022

Polymers for Advanced Techs

View full text Add to dashboard Cite

show abstract

“…Therefore,possible mechanism based on indirect redox reaction via reactive oxygen species(superoxide/hydrogen peroxide) falls in line with control experiments and literature reports Table S3. [23,38] ð1Þ ð2Þ…”

Section: Plausible Mechanisms Of Contaminant Degradationmentioning

confidence: 99%

“…[3,4,[15][16][17] The impact of different organic ligands can be rationalized in terms of the complexation effect on the reduction potential of Fe III /Fe II redox couple, [14,18,19] Depending upon relative stabilization of the two oxidation states in transition metal redox couple, different ligands tune the formal redox potential of the Fe III -Fe II couple to a range of values. Modulating the redox potential of environmentally widespread Fe II ions by complexation with naturally occurring organic compounds can be interesting towards natural attenuation of contaminants under environmental conditions, [5][6][7][8] In continuation of our interest in using coordination compounds for synthetic and environmental applications, [20][21][22][23][24][25] this work presents the use of Fe II -complexes with prevalent compounds as ligands for waste water treatment under environmental conditions (aerobic, 20°C, pH 6-7). The comparative kinetic studies for the removal of contaminants, demonstrated an increased performance of iron(II) complexes with ligands following the trend aqua < acetate < oxalate < NTA < IDA < EDTA.…”

Section: Introductionmentioning

confidence: 99%

Complexation Modulated Iron Redox Systems for Waste Water Treatment: A Natural Attenuation Model

et al. 2020

Self Cite

View full text Add to dashboard Cite

Natural attenuation mimics nature's own cleansing mechanism and offers an effective solution for contaminant treatment under prevalent environmental conditions without generating secondary toxins. Despite obvious advantages, these processes are restricted by a narrow range of reduction potential available within natural water systems. Complexation reaction offers to modulate the redox potential range of transition metals allowing detoxification of persistent contaminants. Consequently, present work describes complexation modulated redox potential of iron systems with environmentally available ligands for degradation of contaminants (textile dyes, antibiotics and toxic metal ions) for a possible application in water treatment under natural attenuation concept. The observed spectrophotometric results are indicative of a significant ligand effect on degradation kinetics of studied contaminants by iron(II) complexes. The kinetic efficacies of iron(II) complexes for contaminant degradation were in the order: aqua

show abstract

“…Industrial wastewater recycling has become an increasingly more evident need. The efforts of international governments to safeguard the environment have contributed to private companies taking action on the matter and making important investments in these fields [1,2,[4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. The textile industry discharges organic and inorganic waste that produces bioaccumulation and can cause high degrees of toxicity [19] (Table 1, Figure 1).…”

Section: Introductionmentioning

confidence: 99%

Uses of Nanoclays and Adsorbents for Dye Recovery: A Textile Industry Review

et al. 2021

View full text Add to dashboard Cite

Wastewater recovery is one of the most pressing contaminant-related subjects in the textile industry. Many cleaning and recovery techniques have been applied in recent decades, from physical separation to chemical separation. This work reviews textile wastewater recovery by focusing on natural or synthetic nanoclays in order to compare their capabilities. Presently, a wide variety of nanoclays are available that can adsorb substances dissolved in water. This review summarizes and describes nanoclay modifications for different structures (laminar, tubular, etc.) to compare adsorption performance under the best conditions. This adsorbent capacity can be used in contaminant industries to recover water that can be used and be recontaminated during a second use to close the production circle. It explores and proposes future perspectives for the nanoclay hybrid compounds generated after certain cleaning steps. This is a critical review of works that have studied adsorption or desorption procedures for different nanoclay structures. Finally, it makes a future application proposal by taking into account the summarized pros and cons of each nanoclay. This work addresses contaminant reuse, where part of the employed dyes can be reused in printing or even dyeing processes, depending on the fixing capacity of the dye in the nanoclay, which is herein discussed.

show abstract

Dielectric, magnetic and photocatalytic activity of PolyPyrrole/Prussian red nanocomposite for waste water treatment applications

Cited by 34 publications

References 54 publications

High efficient degradation of organic dyes by polypyrrole‐multiwall carbon nanotubes nanocomposites

High efficient degradation of organic dyes by polypyrrole‐multiwall carbon nanotubes nanocomposites

Complexation Modulated Iron Redox Systems for Waste Water Treatment: A Natural Attenuation Model

Uses of Nanoclays and Adsorbents for Dye Recovery: A Textile Industry Review

Contact Info

Product

Resources

About