Control of Viscosity in Different Concentrations and Temperatures of Nutrient Solution for Hydroponic System

Hikashi, M.; Ishikawa, Katsumi; Mori, Masato; Yasutake, Daisuke

doi:10.3182/20130327-3-jp-3017.00065

Cited by 3 publications

(2 citation statements)

References 21 publications

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“…In the chronopotentiometry measurement, when there was no MoS 2 transducer layer, the LIG potential drifted up to 4.5 × 10 À 5 V/s, while a smaller drift value of 2 × 10 À 5 V/s was recorded for LIG-MoS 2 . Finally, the capacitance C of the LIG-MoS 2 / SC-K + -ISE was calculated via eqn [2]. The result of 50 μF is higher than that of the LIG/SC-K + -ISE (22 μF).…”

Section: Electrochemical Characteristics Of the Modified Electrodesmentioning

confidence: 99%

“…Hydroponic systems for agricultural production have several advantages. For example, they can be used in areas unsuitable for typical plant growth, be easily adapted to different growing conditions, greatly reduce the amount of labour needed, and produce high-productivity, high-quality, clean and safe products [2]. Hydroponic growers must understand the quality of the nutrient solution utilized by various crops at various stages of growth.…”

Section: Introductionmentioning

confidence: 99%

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Potassium Ion‐selective Electrode with a Sensitive Ion‐to‐Electron Transducer Composed of Porous Laser‐induced Graphene and MoS₂ Fabricated by One‐step Direct Laser Writing

et al. 2022

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In this study, an ion‐selective electrode with a sensitive ion‐to‐electron transducer composed of porous laser‐induced graphene (LIG) and MoS2 (LIG‐MoS2/ISE) was fabricated to measure the potassium ion concentration in a greenhouse nutrient solution for soilless culture. Additionally, a more effective and low‐cost method was proposed for the large‐batch production and manufacture of potassium ion‐selective electrodes (K+‐ISEs) using the direct laser writing technique, which differs considerably from existing methods. Moreover, the sensing mechanism of the proposed LIG‐MoS2/ISE for potassium ion detection was investigated. The morphology and physical properties of the LIG‐MoS2/SC‐K+‐ISEs were studied by X‐ray diffraction (XRD), scanning electron microscopy (SEM), Raman spectroscopy and energy‐dispersive spectroscopy. Potentiometric measurements, chronopotentiometry, potentiometric water layer tests, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were used to evaluate the analytical performance of the newly developed K+‐ISEs. A Nernstian slope of 30.1 mV/decade for the activity of potassium ions in a concentration range from 10−7 to 10−2 M was determined. The EIS and chronopotentiometry results revealed that the LIG‐MoS2/SC‐K+‐ISE had a larger resistance and double‐layer capacitance than the LIG/SC‐K+‐ISE. The ion‐selective membrane (ISM) and solid‐contact layer did not have any water film between them, according to the potentiometric water layer test. The results proved that the LIG‐MoS2 nanocomposite could possibly be used as a sensitive ion‐to‐electron transducer to fabricate K+‐ISEs. The K+‐ISE fabrication method using the direct laser writing technique had a higher efficiency, enabling its broad application prospects in agriculture.

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Section: Electrochemical Characteristics Of the Modified Electrodesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Potassium Ion‐selective Electrode with a Sensitive Ion‐to‐Electron Transducer Composed of Porous Laser‐induced Graphene and MoS₂ Fabricated by One‐step Direct Laser Writing

et al. 2022

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Mobile Application Development of Hydroponic Smart Farm using Information Flow Diagram

Rukhiran¹,

Netinant

2020

2020 - 5th International Conference on Information Technology (InCIT)

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Investigation of a Fuel Oil Viscosity and Temperature Control System Based on State Observation

Mao

Huang

2018

2018 11th International Symposium on Computational Intelligence and Design (ISCID)

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Control of Viscosity in Different Concentrations and Temperatures of Nutrient Solution for Hydroponic System

Cited by 3 publications

References 21 publications

Potassium Ion‐selective Electrode with a Sensitive Ion‐to‐Electron Transducer Composed of Porous Laser‐induced Graphene and MoS₂ Fabricated by One‐step Direct Laser Writing

Potassium Ion‐selective Electrode with a Sensitive Ion‐to‐Electron Transducer Composed of Porous Laser‐induced Graphene and MoS₂ Fabricated by One‐step Direct Laser Writing

Mobile Application Development of Hydroponic Smart Farm using Information Flow Diagram

Investigation of a Fuel Oil Viscosity and Temperature Control System Based on State Observation

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Control of Viscosity in Different Concentrations and Temperatures of Nutrient Solution for Hydroponic System

Cited by 3 publications

References 21 publications

Potassium Ion‐selective Electrode with a Sensitive Ion‐to‐Electron Transducer Composed of Porous Laser‐induced Graphene and MoS2 Fabricated by One‐step Direct Laser Writing

Potassium Ion‐selective Electrode with a Sensitive Ion‐to‐Electron Transducer Composed of Porous Laser‐induced Graphene and MoS2 Fabricated by One‐step Direct Laser Writing

Mobile Application Development of Hydroponic Smart Farm using Information Flow Diagram

Investigation of a Fuel Oil Viscosity and Temperature Control System Based on State Observation

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Product

Resources

About

Potassium Ion‐selective Electrode with a Sensitive Ion‐to‐Electron Transducer Composed of Porous Laser‐induced Graphene and MoS₂ Fabricated by One‐step Direct Laser Writing

Potassium Ion‐selective Electrode with a Sensitive Ion‐to‐Electron Transducer Composed of Porous Laser‐induced Graphene and MoS₂ Fabricated by One‐step Direct Laser Writing