基于氧化钙催化发光的丙酮气体传感器
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摘要
基于一定条件下丙酮气体可以在氧化钙的表面产生强烈的化学发光现象,设计了一种检测空气中丙酮气体的发光传感器。研究发现该传感器在波长535 nm,温度266℃,空气流量为400 m L/min的最佳实验条件下,测得丙酮气体浓度的线性范围为7. 6～1520 mg/m~3(R=0. 9984),相对标准偏差(RSD)为3. 65%,检出限为1. 52 mg/m~3(S/N=3)。考察了在相同浓度下的常见挥发性有机物的干扰情况,发现除丙烯腈、乙腈和甲醛外,其余9种挥发性有机物的干扰均小于1%,表明该传感器具有较好的选择性、使用寿命与稳定性。
Based on the fact that acetone has cataluminescence( CTL) phenomenon on CaO surface,a sensor was designed and fabricated to detect acetone gas in air. The linear range of CTL intensity versus acetone concentration was found to be 7. 6 to 1520 mg/m~3( R = 0. 9984) with a detection limit of 1. 52 mg/m~3( S/N = 3),under the optimal conditions of 535 nm wavelength at 266 °C with a flow rate of 400 m L/min. Some volatile organic compounds( VOC) were explored as interference materials,the result shows that the other nine organics possessed no obvious influences to the detection with interferences less than 1. 0%,except for acrylonitrile,acetonitrile and formaldehyde.The sensor has good selectivity,service life and stability.
Based on the fact that acetone has cataluminescence( CTL) phenomenon on CaO surface,a sensor was designed and fabricated to detect acetone gas in air. The linear range of CTL intensity versus acetone concentration was found to be 7. 6 to 1520 mg/m~3( R = 0. 9984) with a detection limit of 1. 52 mg/m~3( S/N = 3),under the optimal conditions of 535 nm wavelength at 266 °C with a flow rate of 400 m L/min. Some volatile organic compounds( VOC) were explored as interference materials,the result shows that the other nine organics possessed no obvious influences to the detection with interferences less than 1. 0%,except for acrylonitrile,acetonitrile and formaldehyde.The sensor has good selectivity,service life and stability.
引文
[1]王贞,林源绍,胡卢丰.丙酮致中毒性脑病的临床及磁共振特点(附3例病例报告)[C]//2015年浙江省神经病学学术年会论文汇编. 2015.
[2]Tassopoulos C,Barnett D,Russell F T. Breath-acetone and blood-sugar measurements in diabetes[J]. The Lancet,1969,293(7609):1282-1286.
[3]Michèle B,Claudel B,Faure L,et al. Chemiluminescence during the catalysis of carbon monoxide oxidation on a thoria urface[J]. Journal of Catalysis,1976,45(2):137-144.
[4]Nakagawa M. A new chemiluminescence-based sensor for discriminating and determining constituents in mixed gases[J]. Sensors&Actuators B,1995,29(29):94-100.
[5]饶志明,施进军,张新荣,等.利用Cr2O3-La Co O3-Pt纳米材料催化发光测定大气中的氨分子[J].化学学报,2002,60(9):1668-1671.
[6]Zhou K W,Li X,Su D,et al. A Rapid and sensitive acetone gas sensor utilizing thermal desorption coupled with cataluminescence on Nano-Cr4Ti O8[J]. Advanced Materials Research,2012,468-471:217-220.
[7]Zhang L,Rong W,Chen Y,et al. A novel acetone sensor utilizing cataluminescence on layered double oxide[J]. Sensors&Actuators B Chemical,2014,205(1):82-87.
[8]慕苗,张琰图,刘珍叶,等. Zn O-WO3纳米材料催化化学发光法测定呼吸气中的丙酮[J].分析测试学报,2016,35(1):107-110.
[9]Hattori H. Heterogeneous basic catalysis[J]. Chemical Reviews,1995,95(3),537-558.
[10]Zhu H,Zongbin W U,Chen Y,et al. Preparation of biodiesel catalyzed by solid super base of calcium oxide and its refining process[J]. Chinese Journal of Catalysis,2006,27(5):391-396.
[11]Viriya-Empikul N,Krasae P,Nualpaeng W,et al. Biodiesel production over Ca-based solid catalysts derived from industrial wastes[J]. Fuel,2012,92(1):239-244.
[12]熊继东,齐学振. Ca O催化糠醛丙酮羟醛缩合反应的研究[J].浙江化工,2017,48(12):30-34.
[13]Xu W,Raftery D. In situ solid-state nuclear magnetic resonance studies of acetone photocatalytic oxidation on titanium oxide surfaces[J]. Journal of Catalysis,2001,204(1):110-117.
[2]Tassopoulos C,Barnett D,Russell F T. Breath-acetone and blood-sugar measurements in diabetes[J]. The Lancet,1969,293(7609):1282-1286.
[3]Michèle B,Claudel B,Faure L,et al. Chemiluminescence during the catalysis of carbon monoxide oxidation on a thoria urface[J]. Journal of Catalysis,1976,45(2):137-144.
[4]Nakagawa M. A new chemiluminescence-based sensor for discriminating and determining constituents in mixed gases[J]. Sensors&Actuators B,1995,29(29):94-100.
[5]饶志明,施进军,张新荣,等.利用Cr2O3-La Co O3-Pt纳米材料催化发光测定大气中的氨分子[J].化学学报,2002,60(9):1668-1671.
[6]Zhou K W,Li X,Su D,et al. A Rapid and sensitive acetone gas sensor utilizing thermal desorption coupled with cataluminescence on Nano-Cr4Ti O8[J]. Advanced Materials Research,2012,468-471:217-220.
[7]Zhang L,Rong W,Chen Y,et al. A novel acetone sensor utilizing cataluminescence on layered double oxide[J]. Sensors&Actuators B Chemical,2014,205(1):82-87.
[8]慕苗,张琰图,刘珍叶,等. Zn O-WO3纳米材料催化化学发光法测定呼吸气中的丙酮[J].分析测试学报,2016,35(1):107-110.
[9]Hattori H. Heterogeneous basic catalysis[J]. Chemical Reviews,1995,95(3),537-558.
[10]Zhu H,Zongbin W U,Chen Y,et al. Preparation of biodiesel catalyzed by solid super base of calcium oxide and its refining process[J]. Chinese Journal of Catalysis,2006,27(5):391-396.
[11]Viriya-Empikul N,Krasae P,Nualpaeng W,et al. Biodiesel production over Ca-based solid catalysts derived from industrial wastes[J]. Fuel,2012,92(1):239-244.
[12]熊继东,齐学振. Ca O催化糠醛丙酮羟醛缩合反应的研究[J].浙江化工,2017,48(12):30-34.
[13]Xu W,Raftery D. In situ solid-state nuclear magnetic resonance studies of acetone photocatalytic oxidation on titanium oxide surfaces[J]. Journal of Catalysis,2001,204(1):110-117.