Abstract In the present work, three different kinds of In2S3: hierarchical microspheres A, B and C (HMa, HMb and HMc), which were synthesized by a hydrothermal method in the sodium dodecyl sulfate-thiourea (SDS-thiourea) system. XRD, SEM and BET were used to characterize the prepared In2S3 materials. Compared with the other two kinds of In2S3, the as-prepared In2S3 hierarchical microspheres B (In2S3 HMb) exhibit the best cataluminescence response to ammonium sulfide. The response and recovery times of the home-made ammonium sulfide gas sensor with In2S3 hierarchical microspheres B as sensing materials were about 8 s and 24 s, respectively. The linear dependence of the sensitivity on the ammonium sulfide concentration was observed in the range of 4–200 ppm with an excellent selectivity. These results indicated that In2S3 hierarchical microspheres B would be a good candidate for fabricating practical cataluminescence ammonium sulfide sensor.

中文翻译：

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基于 2 S 3 的硫化铵催化发光传感器的分级球体

摘要 在目前的工作中，在十二烷基硫酸钠-硫脲（SDS-硫脲）体系中通过水热法合成了三种不同的In2S3：分级微球A、B和C（HMa、HMb和HMc）。XRD、SEM 和 BET 用于表征制备的 In2S3 材料。与其他两种 In2S3 相比，所制备的 In2S3 分级微球 B（In2S3 HMb）对硫化铵表现出最好的催化发光响应。以 In2S3 分级微球 B 为传感材料的自制硫化铵气体传感器的响应时间和恢复时间分别约为 8 s 和 24 s。在 4-200 ppm 范围内观察到灵敏度与硫化铵浓度的线性相关性，具有出色的选择性。