Method for preparing flower-like nano SnO2 gas-sensitive material by adopting hydrothermal synthesis method

The invention discloses a method for preparing a flower-like nano SnO2 gas-sensitive material by adopting a hydrothermal synthesis method, which is characterized in that a flower-like SnO2 nano material with high dispersity and uniform size is synthesized in one step by adopting the hydrothermal synthesis method and taking trisodium citrate as an additive and tin dichloride as tin salt. The method solves the problems of high cost, tedious synthesis steps, complex post-treatment process and the like in the existing synthesis technology. The SnO2 nanomaterial with the flower-shaped structure, which is uniform in size and good in dispersity is obtained by taking the cheap trisodium citrate as an inducer through one-step synthesis, can be widely applied to the field of gas sensing, and can be widely applied to detection of dangerous chemical gases in various environments. 本发明公开了一种采用水热合成法制备花状纳米SnO2气敏材料的方法，采用水热合成法，以柠檬酸三钠为添加剂，二氯化锡为锡盐，一步合成具有高分散性并且尺寸均一的花状SnO2纳米材料，解决了现有合成技术中成本高、合成步骤繁琐及后处理过程复杂等问题，使其可以广泛应用于气体传感领域，以廉价的柠檬酸