Multifunctional Iron oxide embedded reduced graphene oxide as a versatile adsorbent candidate for effectual arsenic and dye removal

Pradhan, Sitangshu Sekhar; Konwar, Korobi; Ghosh, Tilak Narayan; Mondal, Barun; Sarkar, S.; Deb, Pritam

doi:10.1016/j.colcom.2020.100319

Cited by 37 publications

(5 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…37 For the purpose of drug delivery, the behavior of MNPs under a magnetic field can be engineered via different surface functionalization methods. 38 Furthermore, for application in environmental remediation such as heavy metal scavenging using porous nanostructures 39,40 dye removal, 41,42 pollutant removal from water, 43,44 and oil removal from water, [45][46][47] the efficiency and functionalities of MNPs can be modulated using various surface engineering techniques. 48,49,50 These surface modifications or functionalization of the nanoparticles using different techniques are attributed to the interface interactions between the nanoparticle and the system used for surface treatment on numerous occasions.…”

Section: Introductionmentioning

confidence: 99%

Quantum magnetic phenomena in engineered heterointerface of low-dimensional van der Waals and non-van der Waals materials

Gogoi

Gao

Ajayan

et al. 2023

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Quantum magnetic phenomena in engineered heterointerface of low-dimensional van der Waals and non-van der Waals materials

Gogoi

Gao

Ajayan

et al. 2023

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

show abstract

“…These analyses rely on the measurement of the absorbance of solutions and are comparative practices based on calibration curves and are practical tools in chemical analysis (Zayed et al, 2017;Marczenko and Balcerzak, 2000). Spectrophotometric processes take an important role in many areas such as coronal tooth discoloration , dental bleaching (Claudino et al, 2021), drug (Arabzadeh et al, 2019, hematite/magnetite nanocomposites (Zayed et al, 2017), eye preparations, vial and drops (Ragab et al, 2018), dye removal (Huong et al, 2020;Pradhan et al, 2020) and metal content (Kukielski et al, 2019) analysis. The devices used in the spectrophotometric analysis are called spectrophotometers.…”

Section: Introductionmentioning

confidence: 99%

Object Detection and Regression Based Visible Spectrophotometric Analysis: A Demonstration Using Methylene Blue Solution

Aytaç

2023

ADCAIJ

View full text Add to dashboard Cite

This study investigates the estimation of the concentration of methylene blue solutions to understand if visible spectrophotometry could be performed using a smartphone and machine learning. The presented procedure consists of taking photos, detecting test tubes and sampling region of interest (ROI) with YOLOv5, finding the hue, saturation, value (HSV) code of the dominant color in the ROI, and regression. 257 photos were taken for the procedure. The YOLOv5 object detection architecture was trained on 928 images and the highest mAP@05 values were detected as 0.915 in 300 epochs. For automatic ROI sampling, the YOLOv5 detect.py file was edited. The trained YOLOv5 detected 254 out of 257 test tubes and extracted ROIs. The HSV code of the dominant color in the exported ROI images was determined and stored in a csv file together with the concentration values. Subsequently, 25 different regression algorithms were applied to the generated data set. The extra trees regressor was the most generalizing model with 99.5% training and 99.4% validation R2 values. A hyperparameter tuning process was performed on the extra trees regressor and a mixed model was created using the best 3 regression algorithms to improve the R2 value. Finally, all three models were tested on unseen data and the lowest MSE value was found in the untuned extra trees regressor and blended model with values of 0.10564 and 0.16586, respectively. These results prove that visible spectrophotometric analysis can be performed using the presented procedure and that a mobile application can be developed for this purpose.

show abstract

“…The rGO is electrically conductive and hydrophobic, instead of the insulating and hydrophilic GO. These brings new possibilities of applications for the rGO, like sensors for wearable electronics [20,21] and removal of contaminants like arsenic from drinking water [22].…”

Section: Introductionmentioning

confidence: 99%

A Facile Production of Reduced Graphene Oxide Transparent Films in Polyethylene Terephthalate Substrates

Pereira¹,

Carballo²,

Felisberto³

et al. 2022

JNanoR

View full text Add to dashboard Cite

Graphene oxide and reduced graphene oxide films have widespread applications in many fields. There are several methods for preparing thin films of these materials in different substrates, but a method that offers low cost and high quality in thin-film fabrication is still lacking. Here, we report a low cost and easily scalable methodology to produce reduced graphene oxide conductive films in polyethylene terephthalate (PET) substrates from graphene oxide suspensions. In an environmentally friendly approach, the reduction process was carried out in a green chemistry fashion way using ascorbic acid as reduction agent. Graphene oxide was synthesized by modified Hummers' method and the coating was realized in a homemade dip-coating process. Films with light transmittance as high as 99% and surface resistance in the order of MΩ/sq were obtained with graphene oxide contents as low as 0.5 wt%. The increase in graphene oxide contents produced films with surface resistance as low as 13 kΩ/sq. These are very interesting results that allows these films to be considered for application in electromagnetic shielding and electrostatic dissipation.

show abstract

Multifunctional Iron oxide embedded reduced graphene oxide as a versatile adsorbent candidate for effectual arsenic and dye removal

Cited by 37 publications

References 29 publications

Quantum magnetic phenomena in engineered heterointerface of low-dimensional van der Waals and non-van der Waals materials

Quantum magnetic phenomena in engineered heterointerface of low-dimensional van der Waals and non-van der Waals materials

Object Detection and Regression Based Visible Spectrophotometric Analysis: A Demonstration Using Methylene Blue Solution

A Facile Production of Reduced Graphene Oxide Transparent Films in Polyethylene Terephthalate Substrates

Contact Info

Product

Resources

About