Xu Hao, Gong Zhu-Xiang, Huo Li-Zhu, Guo Chao-Fei, Yang Xue-Juan, Wang Yu-Xuan, Luo Xi-Ping
Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou 311300, China.
Nanomaterials (Basel). 2023 Dec 15;13(24):3151. doi: 10.3390/nano13243151.
Cellulose-based carbon (CBC) is widely known for its porous structure and high specific surface area and is liable to adsorb gas molecules and macromolecular pollutants. However, the application of CBC in gas sensing has been little studied. In this paper, a ZnO/CBC heterojunction was formed by means of simple co-precipitation and high-temperature carbonization. As a new ammonia sensor, the prepared ZnO/CBC sensor can detect ammonia that the previous pure ZnO ammonia sensor cannot at room temperature. It has a great gas sensing response, stability, and selectivity to an ammonia concentration of 200 ppm. This study provides a new idea for the design and synthesis of biomass carbon-metal oxide composites.
纤维素基碳（CBC）因其多孔结构和高比表面积而广为人知，并且易于吸附气体分子和大分子污染物。然而，CBC在气体传感中的应用研究较少。本文通过简单的共沉淀和高温碳化法制备了ZnO/CBC异质结。作为一种新型氨传感器，制备的ZnO/CBC传感器在室温下能够检测到之前的纯ZnO氨传感器无法检测到的氨。它对200 ppm的氨浓度具有良好的气敏响应、稳定性和选择性。该研究为生物质碳-金属氧化物复合材料的设计与合成提供了新思路。
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