Continuous carbon dioxide (CO2) emissions have a substantial impact on the environment, crop output, and human health, necessitating further CO2 monitoring improvements. MXene, a new large family of two-dimensional (2D) transition metal carbides, carbonitrides, and nitrides have recently sparked interest in gas sensing due to their remarkable properties. In this study, we synthesized MXene by etching LiF and HCl. The as-synthesized MXene was developed on interdigitated electrode (IDE) as a thin layer of an active sensing materials. The microstructural and composition analysis of the MXene was investigated using Scanning Electron Microscope (SEM) and the sensing performance of the MXene-based CO2 sensor was performed towards 50 and 500 ppm of CO2 gas at room temperature. The response and recovery time of the sensor was 14.8/3.9 s and 33.4/3.2 s with sensor response of 3.60% and 9.68% respectively.