Fabrication of quartz crystal microbalance humidity sensors based on super-hydrophilic cellulose nanocrystals

被引：19

作者：

Chen, Weixiang ^{[1
]}

Chen, Bo ^{[1
]}

Lv, Rixin ^{[2
]}

Wu, Milian ^{[1
]}

Zhou, Jie ^{[1
]}

Lu, Beili ^{[1
]}

Huang, Biao ^{[1
]}

Lu, Qilin ^{[3
]}

Tang, Lirong ^{[1
]}

机构：

[1] Fujian Agr & Forestry Univ, Coll Mat Engn, Jinshan Coll, 63 Xiyuangong Rd, Fuzhou, Fujian, Peoples R China

[2] Fujian Agr & Forestry Univ, Coll Life Sci, 15 Shangxiadian Rd, Fuzhou, Fujian, Peoples R China

[3] Minjiang Univ, Fujian Key Lab Novel Funct Text Fibers & Mat, 200 Xiyuangong Rd, Fuzhou, Fujian, Peoples R China

来源：

CELLULOSE | 2021年 / 28卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Humidity sensor; Quartz crystal microbalance; Cellulose nanocrystals; Super-hydrophilic; High sensitivity;

D O I：

10.1007/s10570-021-03777-y

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

Natural cellulose nanocrystals (CNCs) possess outstanding properties, such as biodegradability, hydrophilicity, large specific surface areas, and are low in cost. A highly stable and sensitive humidity sensor based on a quartz crystal microbalance (QCM) was prepared using CNCs as the sensing film. To investigate the impact of CNCs loading on the sensor performance, a series of humidity-sensitive performance tests, including linearity, response and recovery times, repeatability, hysteresis characteristics, selectivity, and long-term stability tests, was conducted. The experimental results indicated that the humidity sensor with CNCs loading of 2 mu g (QCM-2) exhibited excellent logarithmic linearity, high sensitivity (32.35 Hz/% relative humidity (RH)), excellent reversible behavior, and long-term stability at a RH of 11-84%. The contact angle of QCM-2 was 12.5 degrees, revealing its suitable hydrophilicity. Thus, we demonstrate that CNCs are great prospects for potential application in humidity sensors with high performance and low cost. [GRAPHICS] .

引用

页码：3409 / 3421

页数：13

共 48 条

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