Design and characterization of PANI/starch/Fe2O3 bio composite for wastewater remediation

Ragab, Eman A.; Shaban, Mohamed; Abdel-Khalek, Amr Adel; Mohamed, Fatma

doi:10.1016/j.ijbiomac.2021.03.043

Cited by 21 publications

(13 citation statements)

References 79 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While the bands at 3401 and 1105 cm −1 are related to the formation of the N–H and C–N stretching vibration of NH 2 of aniline, respectively. The bands at 1467 and 1301 cm −1 are related to the C=C vibration of quinoid and benzenoid rings [ 45 , 46 , 47 ], respectively. After the PANI/PbS composite formation, N–H and C–N bands are red-shifted, whereas the chlorine bands are blue-shifted in comparison with the PANI only.…”

Section: Resultsmentioning

confidence: 99%

“…After the PANI/PbS composite formation, N–H and C–N bands are red-shifted, whereas the chlorine bands are blue-shifted in comparison with the PANI only. This shift is related to the interaction and formation of the composite constituents [ 45 , 46 , 47 , 48 , 49 , 50 ]. All the bands of the PANI and PANI/PbS are mentioned clearly in Figure 1 b and Table 1 [ 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 ].…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Facile Fabrication of Polyaniline/Pbs Nanocomposite for High-Performance Supercapacitor Application

et al. 2022

Self Cite

View full text Add to dashboard Cite

In this work, a polyaniline/lead sulfide (PANI/PbS) nanocomposite was prepared by combining the in situ oxidation polymerization method and the surface adsorption process. This nanocomposite was applied as a supercapacitor electrode. The crystal structure, nanomorphology, and optical analysis of PANI and PANI/PbS were investigated. The electrochemical performance of the designed PANI/PbS electrode-based supercapacitor was tested by using cyclic voltammetry (CV), chronopotentiometry (CP), and AC impedance techniques in HCl and Na2SO4 electrolytes. The average crystallite size of the PANI/PbS nanocomposite is about 43 nm. PANI/PbS possesses an agglomerated network related to PANI with additional spherical shapes from PbS nanoparticles. After the PANI/PbS nanocomposite formation, there are enhancements in their absorption intensities. At a current density of 0.4 A g−1, the specific capacitance of PANI/PbS in Na2SO4 and HCl was found to be 303 and 625 F g−1, respectively. In HCl (625 F g−1 and 1500 mF cm−2), the gravimetric and areal capacitances of the PANI/PbS electrode are nearly double those of the Na2SO4 electrolyte. Also, the average specific energy and specific power density values for the PANI/PbS electrode in HCl are 4.168 Wh kg−1 and 196.03 W kg−1, respectively. After 5000 cycles, the capacitance loses only 4.5% of its initial value. The results refer to the high stability and good performance of the designed PANI/PbS as a supercapacitor electrode.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Facile Fabrication of Polyaniline/Pbs Nanocomposite for High-Performance Supercapacitor Application

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…In this category, PANI has promoted ongoing research interest due to its intrinsic conductivity, where it can be used exclusively as a humidity-responsive material. However, to enhance its properties, PANI can be prepared in the form of composites by the addition of biopolymer additives, such as starch [ 18 , 19 , 20 ], cellulose [ 21 , 22 , 23 ] and chitosan [ 24 , 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

Polyaniline/Biopolymer Composite Systems for Humidity Sensor Applications: A Review

et al. 2021

View full text Add to dashboard Cite

The development of polyaniline (PANI)/biomaterial composites as humidity sensor materials represents an emerging area of advanced materials with promising applications. The increasing attention to biopolymer materials as desiccants for humidity sensor components can be explained by their sustainability and propensity to absorb water. This review represents a literature survey, covering the last decade, which is focused on the interrelationship between the core properties and moisture responsiveness of multicomponent polymer/biomaterial composites. This contribution provides an overview of humidity-sensing materials and the corresponding sensors that emphasize the resistive (impedance) type of PANI devices. The key physicochemical properties that affect moisture sensitivity include the following: swelling, water vapor adsorption capacity, porosity, electrical conductivity, and enthalpies of adsorption and vaporization. Some key features of humidity-sensing materials involve the response time, recovery time, and hysteresis error. This work presents a discussion on various types of humidity-responsive composite materials that contain PANI and biopolymers, such as cellulose, chitosan and structurally related systems, along with a brief overview of carbonaceous and ceramic materials. The effect of additive components, such as polyvinyl alcohol (PVA), for film fabrication and their adsorption properties are also discussed. The mechanisms of hydration and proton transfer, as well as the relationship with conductivity is discussed. The literature survey on hydration reveals that the textural properties (surface area and pore structure) of a material, along with the hydrophile–lipophile balance (HLB) play a crucial role. The role of HLB is important in PANI/biopolymer materials for understanding hydration phenomena and hydrophobic effects. Fundamental aspects of hydration studies that are relevant to humidity sensor materials are reviewed. The experimental design of humidity sensor materials is described, and their relevant physicochemical characterization methods are covered, along with some perspectives on future directions in research on PANI-based humidity sensors.

show abstract

“…Starch is a natural polymer, gained much attention because of its renewability, biodegradability, abundance, eco-friendly, relatively low cost, non-toxic, high adsorptive capacities, amenable to various chemical modifications, and cohesive film-forming properties. Starch molecules can bind with the heavy metal ions or contaminants through the functional (hydroxyl) groups on the starch structure [37,38]. Further, high amylopectin content in starch has powerful swelling properties that are important in sorption-based applications [39].…”

Section: Starch Hybrid Nanomaterialsmentioning

confidence: 99%

“…Wastewater remediation-adsorption of different heavy metals, including As 3+ , Zn 2+ , and Co 2+ and antibacterial effect [38] MWCNT-starch-iron oxide Adsorbent for removing methyl orange (MO) and methylene blue (MB) from aqueous solutions [58] Table 1.…”

Section: Starch Hybrid Nanomaterials Application Referencementioning

confidence: 99%

Starch-Based Hybrid Nanomaterials for Environmental Remediation

Gamage¹,

Thiviya²,

Madhujith³

2022

Biochemistry

View full text Add to dashboard Cite

Environmental pollution is becoming a major global issue with increasing anthropogenic activities that release massive toxic pollutants into the land, air, and water. Nanomaterials have gained the most popularity in the last decades over conventional methods because of their high surface area to volume ratio and higher reactivity. Nanomaterials including metal, metal oxide, zero-valent ions, carbonaceous nanomaterials, and polymers function as adsorbents, catalysts, photocatalysts, membrane (filtration), disinfectants, and sensors in the detection and removal of various pollutants such as heavy metals, organic pollutants, dyes, industrial effluents, and pathogenic microbial. Polymer-inorganic hybrid materials or nanocomposites are highly studied for the removal of various contaminants. Starch, a heteropolysaccharide, is a natural biopolymer generally incorporated with other metal, metal oxide, and other polymeric nanoparticles and has been reported in various environmental remediation applications as a low-cost alternative for petroleum-based polymers. Therefore, this chapter mainly highlights the various nanomaterials used in environmental remediation, starch-based hybrid nanomaterials, and their application and limitations.

show abstract

Design and characterization of PANI/starch/Fe2O3 bio composite for wastewater remediation

Cited by 21 publications

References 79 publications

Facile Fabrication of Polyaniline/Pbs Nanocomposite for High-Performance Supercapacitor Application

Facile Fabrication of Polyaniline/Pbs Nanocomposite for High-Performance Supercapacitor Application

Polyaniline/Biopolymer Composite Systems for Humidity Sensor Applications: A Review

Starch-Based Hybrid Nanomaterials for Environmental Remediation

Contact Info

Product

Resources

About