Nanotechnology in Environmental Science, 2 Volumes

14Nanosensor in Gas Monitoring: A Review

Nurhidayatullaili Muhd Julkapli and Samira Bagheri

University Malaya, Nanotechnology and Catalysis Research Centre (NANOCAT), IPS Building, 50603 Kuala Lumpur, Malaysia

14.1 Introduction

It has been demonstrated that exposure to toxic gases at high concentrations has profound health effects on the human respiratory system and could induce unconsciousness with attendant neurological sequelae and even death [1–3]. Even at relatively low concentrations, it can cause a malodor nuisance problem [2]. Although the chromatography-based systems have been currently and most frequently employed in petroleum industries due to their reliability of high detectability and precision, they are not convenient enough ...