Facile fabrication and application of highly efficient reduced graphene oxide (rGO)-wrapped 3D foam for the removal of organic and inorganic water pollutants

Sahu, Prateekshya Suman; Verma, Ravi Prakash; Tewari, Chetna; Sahoo, Nanda Gopal; Saha, Banani

doi:10.1007/s11356-023-28976-x

Cited by 7 publications

(3 citation statements)

References 70 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3.5 mL solution was extracted from the RhB solution at 15 min intervals to evaluate the adsorption capacity. The adsorption capacities were calculated by Equation (3).…”

Section: Adsorption and Photocatalytic Experimentsmentioning

confidence: 99%

“…In recent years, water pollution problems from frequent oil spills and discharge of industrial oily wastewater have posed a potential threat to the ecological environment and human health [1,2]. The wastewater containing organic oils and dyes from the process of industrial production needs to be settled urgently due to its toxicity, non-biodegradability, carcinogenicity and mutagenicity [3][4][5][6]. Therefore, it is necessary to develop efficient and environmentally-friendly technology to remove organic contaminants from the water environment.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Design of PAN-Based Janus Membrane with Adjustable Asymmetric Wettability in Wastewater Purification

Wang,

Huang,

Zhang

et al. 2024

Materials

View full text Add to dashboard Cite

In this paper, an environmentally friendly polyacrylonitrile-based (PAN-based) composite membrane with a Janus structure for wastewater treatment was successfully fabricated. To achieve the optimum adsorption of PAN-based Janus composite membrane, the asymmetric wettability was regulated through electrospinning, resulting in TiO2 modifying PAN as the hydrophilic substrate layer, and PCL gaining a different thickness as the hydrophobic layer. The prepared Janus composite membrane (PAN/TiO2-PCL20) showed excellent oil/water separation performance for diverse surfactant-stabilized oil-in-water emulsions. For n-hexane-in-water emulsion, the permeate flux and separation efficiency reached 1344 L m−2 h−1 and 99.52%, respectively. Even after 20 cycles of separation, it still had outstanding reusability and the separation efficiency remained above 99.15%. Meanwhile, the PAN/TiO2-PCL20 also exhibited an excellent photocatalytic activity, and the removal rate for RhB reached 93.2%. In addition, the research revealed that PAN/TiO2-PCL20 possessed good mechanical property and unidirectional water transfer capability. All results indicated that PAN/TiO2-PCL20 with photocatalysis and oil/water separation performance could be used for practical complex wastewater purification.

show abstract

“…3.5 mL solution was extracted from the RhB solution at 15 min intervals to evaluate the adsorption capacity. The adsorption capacities were calculated by Equation (3).…”

Section: Adsorption and Photocatalytic Experimentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Design of PAN-Based Janus Membrane with Adjustable Asymmetric Wettability in Wastewater Purification

Wang,

Huang,

Zhang

et al. 2024

Materials

View full text Add to dashboard Cite

show abstract

“…Even though the CVD method can produce high-quality graphene, it has some associated challenges, such as transferring the deposited layer from the substrate, a limited production capacity, and a high cost. Commonly used oxidative exfoliation, which includes the Hammers method for large production of graphene, requires a high amount of strong acids, oxidizing agents, and reducing agents. − The oxidation and reduction process damages the graphene lattices. Recently, there has been notable interest in the electrochemical exfoliation method.…”

Section: Introductionmentioning

confidence: 99%

IoT-Enabled Stretchable Piezoresistive Sensor for Real-Time Monitoring of Fruit Growth and Human Physiology

Verma,

Sahu,

Dabhade

et al. 2024

ACS Appl. Nano Mater.

Self Cite

View full text Add to dashboard Cite

Ensuring quality control by identifying issues such as nutrient deficiencies and pest infestations helps in crop yield estimation for effective planning and resource management. However, the development of sensors for real-time continuous monitoring of fruit growth in an open environment has been a challenge. Herein, we propose a hydrophobic and stretchable piezoresistive sensor to monitor real-time fruit growth using graphene−silicone-based screen-printable paste (GSiCP) remotely. Graphene has been synthesized with a green approach utilizing an electrochemical exfoliation process, wherein no hazardous or strong acids were employed. The synthesized graphene has been characterized using X-ray (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), Raman spectroscopy, and dynamic light scattering. The developed (GSiCP) sensors have shown a high sensitivity, stretchability, and cyclic durability of 2050, 125%, and 5000 cycles, respectively. The sensors show an exceptional minimal detection limit of 0.04%, which shows the capability of monitoring the slowest fruit growth. The GSiCP sensors have been used to monitor onfield the continuous real-time growth of fruit (brinjal) for 15 days using the Internet of Things (IoT). Further, the impact of an excess amount of fertilizer (urea) on fruit growth and plants has been investigated. Owing to the sensor's merits, GSiCP sensors have shown applicability in monitoring physiological signals (radial artery pulse rate) and physical activities.

show abstract

Influence of ethylene diamine functionalized waste plastic derived reduced graphene oxide as filler on the mechanical and thermal properties of low‐density polyethylene

Arya,

Rawat,

Bohra

et al. 2024

Polymer Composites

View full text Add to dashboard Cite

Reduced graphene oxide (rGO) was prepared from waste plastic using the two steps pyrolysis method and subsequently functionalized with ethylene diamine (EDA) to develop amino‐functionalized rGO (EDA‐rGO). To make the thermal and mechanical properties more proficient, EDA‐rGO was further incorporated as a nanofiller into a low‐density polyethylene (LDPE) matrix using the melt mixing method followed by hot‐pressing. A variety of analytical methods, such as FT‐IR, XRD, XPS, DSC, TGA, DMA, Raman spectroscopy, and HRTEM, were used to characterize the elements and morphology of rGO and EDA‐rGO. The results showed that the addition of 5 wt% EDA‐rGO to LDPE polymers significantly improved the mechanical and thermal properties, such as storage modulus by 62%, loss modulus by 67%, young's modulus by 123%, tensile strength by 79.83%, respectively. The thermal decomposition temperatures of 5%, 10% and 50% were increased by 14.01, 9.34, and 4.8°C, respectively. This study provides a feasible and ecologically sustainable way of repurposing plastic waste concurrently enhancing the properties of polymer composites.Highlights Synthesis & functionalization of rGO from waste plastic using EDA. EDA‐rGO used as a nanofiller to fabricate LDPE polymer nanocomposites. EDA‐rGO enhanced the thermal stability of LDPE nanocomposites. The tensile strength & modulus of the LDPE composites are greatly improved. The storage, loss modulus, Tm and Tc enhanced by 62%, 67%, 4.4°C & 2.6°C.

show abstract

Facile fabrication and application of highly efficient reduced graphene oxide (rGO)-wrapped 3D foam for the removal of organic and inorganic water pollutants

Cited by 7 publications

References 70 publications

The Design of PAN-Based Janus Membrane with Adjustable Asymmetric Wettability in Wastewater Purification

The Design of PAN-Based Janus Membrane with Adjustable Asymmetric Wettability in Wastewater Purification

IoT-Enabled Stretchable Piezoresistive Sensor for Real-Time Monitoring of Fruit Growth and Human Physiology

Influence of ethylene diamine functionalized waste plastic derived reduced graphene oxide as filler on the mechanical and thermal properties of low‐density polyethylene

Contact Info

Product

Resources

About