Efficient solar light photocatalytic degradation of commercial pharmaceutical drug and dye using rGO-PANI assisted c-ZnO heterojunction nanocomposites

Shankar, Edugulla Girija; Aishwarya, M. S.; Khan, Anas; Kumar, Avshish; Yu, Jae Su

doi:10.1016/j.ceramint.2021.03.206

Cited by 27 publications

(4 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3(a)). Furthermore, lattice parameters ( a , c ), full width at half maximum (FWHM), volume ( V ), and crystallite size ( D ) of the BCS-1 and BCS-2 were calculated using the diffraction peak at 37.98° to investigate the effect of the molar concentration ratio of Bi : Cu in growth solution on the crystal structure using the well-known relationship: 19 a = λ /√3 sin θ ; c = λ /sin θ ; D = kλ / β hkl cos θ ; V = 0.85( a 2 c )The comparative values are shown in Table 1. A comparative variation of all the values was observed among the BCS-1 and BCS-2.…”

Section: Resultsmentioning

confidence: 99%

Electrochemically triggered rational design of bismuth copper sulfide for wearable all-sulfide semi-solid-state supercapacitor with a wide operational potential window (1.8 V) and ultra-long life

Girija Shankar,

Ramulu,

Nagaraju

et al. 2024

Inorg. Chem. Front.

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 99%

Electrochemically triggered rational design of bismuth copper sulfide for wearable all-sulfide semi-solid-state supercapacitor with a wide operational potential window (1.8 V) and ultra-long life

Girija Shankar,

Ramulu,

Nagaraju

et al. 2024

Inorg. Chem. Front.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Besides, the PANI/EC-CPCF-based TENG was measured under different temperature conditions, as shown in Figure S4 (Supporting Information). Figure S4a (Supporting Information) shows the thermal images of the proposed TENG under various temperature conditions such as approximately 25,30,35,40,45,50,55,60,65, and 70 °C, respectively. Figure S4b (Supporting Information) shows the electrical output voltage of the PANI/EC-CPCF-based TENG under various temperature conditions.…”

Section: Resultsmentioning

confidence: 99%

“…As shown in Figure 1a−d, PANI NSs were synthesized via a polymerization reaction process. 45 Initially, aniline and hydrochloric acid were taken in a ratio of 1:1, and the mixture was then agitated at room temperature for approximately 30 min using a magnetic stirrer. Afterward, the mixture solution was transferred into an ice bath and maintained at 3 °C.…”

Section: Synthesis Process Of Pani Nssmentioning

confidence: 99%

Polyaniline Nanostructures Embedded Ethylcellulose Conductive Polymer Composite Films-Based Triboelectric Nanogenerators for Mechanical Energy Harvesting and Self-Powered Electronics

Manchi,

Graham,

Paranjape

et al. 2023

ACS Appl. Polym. Mater.

Self Cite

View full text Add to dashboard Cite

The fast growth of wearable/portable electronics and the demand for highly effective and long-lasting self-powered systems to support their off-grid operation have significantly increased. Triboelectric nanogenerators (TENGs), a promising energy-harvesting technology, have attracted research interest in recent years for wearable and self-powered portable electronic applications. In this report, conductive polyaniline (PANI) nanostructures (NSs) were synthesized via a facile chemical oxidation polymerization method. The synthesized PANI NSs were embedded into a triboelectric ethylcellulose (EC) polymer to form a conductive polymer composite film (PANI/EC-CPCF), which enhances the triboelectricity and electrical conductivity of the CPCF. The prepared PANI/EC-CPCF layer and commercially available fluorinated ethylene propylene were employed as positive and negative triboelectric materials, which are used to construct a TENG device. The output electrical performance of the fabricated TENGs was studied and optimized systematically by varying the filler amount of PANI NSs in the EC polymer. The optimized TENG exhibited high output voltage, current, charge density, and power density values of ∼130 V, ∼5 μA, ∼45 μC/m2, and ∼650 mW/m2, respectively. Furthermore, the robustness analysis and mechanical stability of the TENG were studied under a long-term durability test for several days. Finally, the practical and real-time applications of the proposed TENG were demonstrated by varying the environmental conditions and harvesting mechanical energy from daily human actions in a living environment, which is used to power several low-power electronic gadgets.

show abstract

“…Pharmaceutical wastes are among the emerging environmental contaminants that pose health risks to humans due to their toxicity and recalcitrant nature to treatment especially by traditional water treatment methods. Thus, quests for successful mitigation processes to achieve the complete remediation of this emerging class of pollutants from the environment and water have resorted to AOPs of which EF is a subset. − EF has recently been applied in the removal of various pharmaceuticals and bacteria in effluent water in Colombia by Martínez and co-authors . More similar work in the degradation of pharmaceuticals in wastewater was reported by Emeji and colleagues in the removal of antiretroviral drugs, while Wang and co-authors used EF in separate work for the removal of ciprofloxacin and an antibiotic (cefoperazone), respectively. , …”

Section: Introductionmentioning

confidence: 99%

Improved Magnetite Nanoparticle Immobilization on a Carbon Felt Cathode in the Heterogeneous Electro-Fenton Degradation of Aspirin in Wastewater

Muzenda

Arotiba

2022

ACS Omega

View full text Add to dashboard Cite

Toward the improvement of the application of heterogeneous electro-Fenton in water treatment, we report a new strategy of enhancing the immobilization of a magnetite nanoparticle catalyst on a carbon felt cathode. Exploiting the intrinsic ferrimagnetic properties of magnetite nanoparticles, magnet bars were used to attach the magnetite into the void spaces of the porous carbon felt (CF) cathode. The magnetite nanoparticles were prepared by coprecipitation with variations in the molar ratios of Fe 2+ /Fe 3+ . The magnetite was characterized, attached onto the CF electrode with magnetic bars, and used in the heterogeneous electro-Fenton (EF) degradation of aspirin. The effects of the following on the degradation were studied: Fe 2+ /Fe 3+ , pH, catalyst loading concentration, and voltage. The heterogeneous EF degradation of aspirin in wastewater improved by 23% when magnetic bars were used to enhance the immobilization of the magnetite catalysts. The 1:4 Fe 2+ /Fe 3+ ratio resulted in the highest hetero-EF catalytic degradation of aspirin with complete degradation (100%) achieved after 140 min. For a mixture of pharmaceuticals, degradation percentages of 94.3% (aspirin), 88% (ciprofloxacin), and 80% (paracetamol) in 3 h were obtained. The magnetized magnetite on the cathode was reusable for 10 cycles. Thus, the use of magnets shows a promising strategy to avoid the leaching of ferrimagnetic nanoparticle catalysts embedded in the cathode for heterogeneous EF processes.

show abstract

Efficient solar light photocatalytic degradation of commercial pharmaceutical drug and dye using rGO-PANI assisted c-ZnO heterojunction nanocomposites

Cited by 27 publications

References 51 publications

Electrochemically triggered rational design of bismuth copper sulfide for wearable all-sulfide semi-solid-state supercapacitor with a wide operational potential window (1.8 V) and ultra-long life

Electrochemically triggered rational design of bismuth copper sulfide for wearable all-sulfide semi-solid-state supercapacitor with a wide operational potential window (1.8 V) and ultra-long life

Polyaniline Nanostructures Embedded Ethylcellulose Conductive Polymer Composite Films-Based Triboelectric Nanogenerators for Mechanical Energy Harvesting and Self-Powered Electronics

Improved Magnetite Nanoparticle Immobilization on a Carbon Felt Cathode in the Heterogeneous Electro-Fenton Degradation of Aspirin in Wastewater

Contact Info

Product

Resources

About