Design and development of an IoT-enabled portable phosphate detection system in water for smart agriculture

被引：22

作者：

Akhter, Fowzia ^{[1
]}

Siddiquei, H. R. ^{[1
]}

Alahi, Md Eshrat E. ^{[2
]}

Mukhopadhyay, S. C. ^{[1
]}

机构：

[1] Macquarie Univ, Fac Sci & Engn, Sydney, NSW 2109, Australia

[2] Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen, Peoples R China

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2021年 / 330卷

基金：

中国国家自然科学基金;

关键词：

Phosphate; MWCNT; PDMS; IoT; Water quality; ELECTROCHEMICAL SENSOR;

D O I：

10.1016/j.sna.2021.112861

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This research proposes a novel low-cost, low-power planar interdigital phosphate sensor for smart agriculture. A 3D printed mould is used for sensor fabrication. The electrodes and substrate of the sensor are formed using Multi-Walled Carbon Nanotubes (MWCNTs) and Polydimethylsiloxane (PDMS), respectively. Electrochemical Impedance Spectroscopy (EIS) is applied to characterize the sensor for a wide range of temperature and phosphate detection. The proposed sensor can differentiate differently concentrated phosphate solutions from 0.01 ppm similar to 40 ppm. Validation of the experimental outcomes using the standard UV-vis Spectrometry promotes the reliability of the sensor. An IoT-enabled portable smart phosphate detection system is also designed and developed. The Arduino-based system is trained with a machine learning model trains to predict phosphate concentration in actual water samples. This enables surveilling water quality from any place and getting experts opinion from any remote location. The portable phosphate detection system will be highly beneficial for continuous water quality monitoring and significantly impact smart agriculture. (c) 2021 Elsevier B.V. All rights reserved.

引用

页数：11

共 37 条

[21] Determination of phosphate in water by flow coulometry [J].