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GB/T 41050-2021: Nanotechnologies - Test method of the degradation of benzene by nano photocatalyst
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Nanotechnologies - Test method of the degradation of benzene by nano photocatalyst
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Basic data | Standard ID | GB/T 41050-2021 (GB/T41050-2021) | | Description (Translated English) | Nanotechnologies - Test method of the degradation of benzene by nano photocatalyst | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G10 | | Word Count Estimation | 16,119 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 41050-2021: Nanotechnologies - Test method of the degradation of benzene by nano photocatalyst
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Nanotechnologies -- Test method of the degradation of benzene by nano photocatalyst
ICS 71:060:01
CCSG10
National Standards of People's Republic of China
Degradation of benzene by nanotechnology photocatalytic nanomaterials
testing method
Published on 2021-12-31
2022-07-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents"
drafted:
This document is proposed by the Chinese Academy of Sciences:
This document is under the jurisdiction of the National Nanotechnology Standardization Technical Committee Nanomaterials Sub-Technical Committee (SAC/TC279/SC1):
Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents:
This document is drafted by: China Building Materials Inspection and Certification Group Co:, Ltd:, Ruifu Jingfeng (Beijing) Technology Co:, Ltd:, Guangzhou Olympic
Due to Environmental Protection Technology Co:, Ltd:, Guangdong Zhongke Huada Engineering Technology Testing Co:, Ltd:, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Xuancheng Jingrui
New Materials Co:, Ltd:, Zhangzhou Kibing Glass Co:, Ltd:, Metallurgical Industry Information Standards Research Institute, Jiaxing Zhongke Testing Technology Service Co:, Ltd:,
Foshan Qizhen Environmental Protection Technology Co:, Ltd:, Anhui Qijia Technology Co:, Ltd:, Guangdong Dongpeng Holdings Co:, Ltd:, Shenzhen Zefang
Environmental Protection Technology Co:, Ltd:, Guangdong Minyi Environmental Technology Co:, Ltd:, Guangzhou Sysmex New Material Technology Co:, Ltd:, Biofond Biology
Science and Technology (Guangdong) Co:, Ltd:, Chongqing Institute of Architectural Sciences:
The main drafters of this document: Pang Shihong, Xu Yulai, Wu Fan, Zhi Jinfang, Xu Jin, Yang Ping, Sun Jing, Zhang Jixiang, Ma Min, Hou Yinglan, Li Qian,
Zeng Yi, Liu Lu, Liao Qiming, Wang Yu, Xie Xintian, Shen Jian, Li Yangquan, Jiang Weizhong, Vanderpeng, Zheng Yanan, Hui Zhen, Xu Yong, Meng Luping, Zhao Jihu,
Tian Zijian and Zong Tongqiang:
Degradation of benzene by nanotechnology photocatalytic nanomaterials
testing method
1 Scope
This document specifies the principle, test equipment, reagents, and test steps for testing the performance of photocatalytic nanomaterials for benzene degradation by gas chromatography:
procedures, calculation of results and test reports:
This document is applicable to flat-plate materials coated with photocatalytic nanomaterials and the formation of photocatalytic function on the surface of flat-plate materials:
liquid material: This document uses a UV light source with a wavelength of 365 nm:
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document:
GB/T 30544:1 Nanotechnology Terminology Part 1: Core Terminology
GB/T 30809 Ultraviolet light source for performance testing of photocatalytic materials
JJG879 Verification Regulations for Ultraviolet Radiation Meters
3 Terms and Definitions
The terms and definitions defined in GB/T 30544:1 and the following apply to this document:
3:1
photocatalysis nanomaterials
Under the excitation of a certain light source, nanomaterials can produce photocatalytic effects:
3:2
photolysis performanceindex
The ability of photocatalytic nanomaterials to degrade organic matter per unit time:
4 Principles
Using gas-solid reaction and photocatalytic reaction (see Appendix A), the samples loaded with photocatalytic nanomaterials were placed in a closed reactor with benzene evaporation
air contact: Let the sample stand still to reach the equilibrium state of adsorption of benzene vapor; under the irradiation of ultraviolet light source, it is measured by gas chromatograph at regular intervals:
Determine the concentration of benzene in the reactor, and use the least squares method to fit the linear slope of the test data according to the concentration change, which is the photocatalytic material to benzene:
photolysis index:
5 Test equipment and reagents
5:1 Reactor system
5:1:1 Reactor
The reactor includes two parts: a sealing cover and a sample pool (see Figure 1), and the sealing cover and the sample pool are sealed by a zipper lock: sealing cap (see
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