<p>While the design of temperature-regulated resistive sensors for concurrent detection of multiple hazardous gases is notably underexplored and challenging, hollow tube structures offer a potential pathway to enhance sensing performance. Guided by waste utilization and sustainable engineering, two CeO₂/ZnO hetero-tubes and one CeO₂ homo-tube were synthesized by simply impregnating waste catkins in mixed solutions of zinc and cerium nitrates with different molar ratios, followed by air calcination at 500&#xa0;°C. Thereinto, the mesoporous 12.0 wt% CeO₂/ZnO hetero-tubes possess large specific surface area, rich oxygen vacancies and high concentration of adsorption oxygen species, which can promote rapid gas diffusion, expose more active sites and improve surface reaction kinetics, thereby establishing a detecting platform for two harmful gases. Under the synergistic effect of n-n hetero-interface and surface Ce³⁺/Ce⁴⁺ ion-pair catalysis, 12.0 wt% CeO₂/ZnO sensor realizes a high response (response value of&#xa0;521 for 10 ppm NO) at near-room temperature of 50&#xa0;°C, and a good response (response value of&#xa0;34&#xa0;for&#xa0;100 ppm aniline) at relatively low working temperature of 170&#xa0;°C. This is the first reported resistive-type gas sensor to realize dual-selective detection of trace NO/aniline under temperature modulation. This sensor also exhibits fast response-recovery, reversible reproducibility, good selectivity and moisture resistance. In addition, the temperature-regulated dual-sensing mechanism was explored in detail using various advanced techniques.</p> Graphical Abstract <p></p>