Synthesis, Characterization of Cr Doped TeO<sub>2</sub> Nanostructures and its Application as EGFET pH Sensor

Adimule, Vinayak; Revaiah, R. G.; Nandi, Santosh S.; Jagadeesha, Adarsha Haramballi

doi:10.1002/elan.202060329

Cited by 52 publications

(19 citation statements)

References 56 publications

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“…The surface morphology exposed that activated sludge obtained to be porous and irregular and thus would enable adsorption of metal ions on diverse parts of materials. Similar results were also observed by Krishna and Padma (2013) [31], Thai Anh Nguyen, and Ruey-Shin Juang (2014) [32]. As shown in Figure 2…”

Section: Scanning Electron Microscope Studiessupporting

confidence: 88%

Optimization, Statistical and Adsorption Analysis of Cr(VI) using Corn Industry Sludge: Kinetic and Isotherm Studies

Kerur

Hanagadakar

Nandi

et al. 2022

Preprint

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A novel, cost-effective activated carbon was prepared from local corn industry waste sludge to treat chromium (VI) ions from an aqueous solution. Adsorption is one of the promising techniques for treating chromium. The adsorption efficiency depends on temperature, pH, metal ion concentrations, contact time, and adsorbent dose. Activation increase the adsorbent sites on the surface of the adsorbent, and SEM micrographs indicate the adsorption sites before and after adsorption. IR spectrum of FT-IR spectrophotometer was used for analysis Investigation of equilibrium adsorption isotherm data reveals suitability of corn industry waste for treating chromium (VI) ions. The adsorption isotherm and kinetics of chromium (VI) adsorption indicate agreement of the experimental data to Frendulich isotherm and pseudo-second-order model and chemisorption as the reason for Cr(VI) removal. The corn industry waste is thermally activated by heating in a controlled atmosphere at 500° C. Kinetic data studies elucidated that adsorption tracks a pseudo-second-order kinetic model. The maximum adsorption capacity and adsorption efficiency of chromium (VI) were found to be 6.80 mg/g at were pH of 4 with a contact time of 150 min and 91.43% using 1.5 g of adsorbent. The outcomes of corn industry sludge as the advantage of low-cost material and an effective adsorbent for Cr (VI) removal. The statistical analysis of adsorption was studied through response surface methodology (RSM). The experimental and theoretical values for percentage adsorption of Cr were observed as 92.91% and 91.43%, respectively. The experimental results closely agree with the central composite design.

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Section: Scanning Electron Microscope Studiessupporting

confidence: 88%

Optimization, Statistical and Adsorption Analysis of Cr(VI) using Corn Industry Sludge: Kinetic and Isotherm Studies

Kerur

Hanagadakar

Nandi

et al. 2022

Preprint

Self Cite

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“…The 12 wt% Cr‐doped TeO

_{2}

nanostructure EGFET sensor gives a sensitivity of 62.03 mV/pH in the pH range of 6–12, and the obtained linearity and drift rates were 0.9345 mV/h and 1.12 mV, respectively. [ 328 ] Alghafour et al. reported a work in which they synthesized a V

_{2}

_{5}

thin film by thermal evaporation method.…”

Section: Fet‐based Microsensorsmentioning

confidence: 99%

A comprehensive review of FET‐based pH sensors: materials, fabrication technologies, and modeling

Sinha

Pal

2021

Electrochemical Science Adv

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The demand for miniaturized point‐of‐care chemical/biochemical sensors has driven the development of field‐effect transistors (FETs) based pH sensors over the last 50 years. This paper aims to review the fabrication technologies, device structures, sensing film materials, and modeling techniques utilized for FET‐based pH sensors. We present the governing principles of potentiometric sensors, with major focus on the working principles of ion‐sensitive FETs (ISFETs). We extensively review different sensing film materials deposited by various techniques, which is critical to the sensing performance of ISFETs. The popular fabrication technologies have been presented, with special emphasis on state‐of‐the‐art silicon‐on‐insulator based technology, which can achieve high sensitivity by utilizing the dual‐gate effect. Furthermore, recent advancements in nano‐ISFETs has been elucidated. We also discuss the adoption of unmodified complementary metal‐oxide semiconductor (CMOS) ISFETs using standard CMOS processes, which has enabled the fabrication of integrated ISFET arrays, which are especially suited for ion‐imaging applications. Moreover, recent developments in extended‐gate FETs has been discussed, which have gained lot of attention due to their design flexibility and ease of fabrication, which is desirable for wearable sensing applications. In addition, recently there have been efforts to utilize nonsilicon channel materials for pH‐sensing application to obtain superior performance and various channel materials have been reviewed. Finally, we have extensively reviewed the ISFET device modeling and simulation techniques using various computer‐aided design tools, which aid in sensor design and characterization.

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“…Burg strip serves as a platform for running computer applications and ensuring the integrity of the components while also connecting relays and an analog pH sensor to an Arduino mini board. Analog pH sensors sense the amount of hydrogen ion presents in the fluid medium with the help of the potassium chloride solution (KCl) carried in the cylindrical body [15]. The LCD display screen is used to visually display the readings that the sensor has recorded.…”

Section: Methodsmentioning

confidence: 99%

Cutting Fluid pH Value Maintenance in CNC Machine by Arduino Nano

M A,

et al. 2024

E3S Web of Conf.

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Cutting fluid plays an important role in machining operations like milling, drilling, reaming, etc. In production industry such as automobile industries, aerospace industries, etc., soluble cutting fluids are mainly used for machining operations. The maximum service life of the cutting fluid is about 3 to 4 months in that industry, when they mixed with water, the cutting fluid will get dried out or converted into vapour due to heat generation and due to friction between the cutting tool and the components. The repeated use of cutting fluid for machining operations, the chemical and physical property of the cutting fluid will be changed. The proper mixing ratio of cutting fluid can be done with the help of Arduino nano device and valves, sensors. Automatic cutting fluid filling process can be done by proper Arduino coding. In the present study, the pH sensor is used to detect the pH level of cutting fluid and the Solenoid valves are electromagnetic valves, these valves are used to maintain the proper flow of cutting fluid and water mixture ratio, whenever the cutting fluid pH value differs from the fixed value, the pH sensor will indicate in Arduino nano. The mixing of cutting fluid and water is carried out by stirrer mechanism, which is attached at just above the cutting fluid tank. Control valve is used to control the flow of cutting fluid during the machining operation. The electric signal from touch sensor will stops automatically, when the cutting fluid in the tank reaches its maximum limit. In this paper, cutting fluid pH value is maintained automatically by Arduino nano device for CNC Machine in industries is discussed.

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Synthesis, Characterization of Cr Doped TeO₂ Nanostructures and its Application as EGFET pH Sensor

Cited by 52 publications

References 56 publications

Optimization, Statistical and Adsorption Analysis of Cr(VI) using Corn Industry Sludge: Kinetic and Isotherm Studies

Optimization, Statistical and Adsorption Analysis of Cr(VI) using Corn Industry Sludge: Kinetic and Isotherm Studies

A comprehensive review of FET‐based pH sensors: materials, fabrication technologies, and modeling

Cutting Fluid pH Value Maintenance in CNC Machine by Arduino Nano

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Synthesis, Characterization of Cr Doped TeO2 Nanostructures and its Application as EGFET pH Sensor

Cited by 52 publications

References 56 publications

Optimization, Statistical and Adsorption Analysis of Cr(VI) using Corn Industry Sludge: Kinetic and Isotherm Studies

Optimization, Statistical and Adsorption Analysis of Cr(VI) using Corn Industry Sludge: Kinetic and Isotherm Studies

A comprehensive review of FET‐based pH sensors: materials, fabrication technologies, and modeling

Cutting Fluid pH Value Maintenance in CNC Machine by Arduino Nano

Contact Info

Product

Resources

About

Synthesis, Characterization of Cr Doped TeO₂ Nanostructures and its Application as EGFET pH Sensor