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Detection instrument scheme | Preparation of graphene oxide film and study on atmospheric purification mechanism

Abstract: 本文介绍了氧化石墨烯（GO）薄膜的制备及其在空气净化中的应用研究。采用改进的Hummers法制备GO，并使用刮涂和喷涂工艺制备GO薄膜。研究重点包括GO薄膜对甲醛、颗粒污染物和挥发性有机污染物的净化性能，以及低温热还原对其性能的影响。检测仪器包括光谱色谱仪（XRF-W7）、低温恒温槽（DC-1030）、真空吸附线棒加热一体式涂布试验机（TBJ-X4-XB）、喷枪（R-4300-S11）和真空干燥箱（DZF-6050），这些仪器用于原料性能检测、环境控制、制膜打样和样品干燥，以确保研究的准确性和可靠性。

"Preparation of Graphene Oxide Thin Films and Research on Atmospheric Purification Mechanism"

In this paper, graphene oxide (GO) was obtained by the improved Hummers method, and Go thin films were prepared by two different coating processes: scrape coating and spray coating. Based on formaldehyde (HCHO), particulate pollutants (PM) and volatile organic pollutants (voCs) in the air, the air purification performance of the Go film was studied; the effect of low temperature thermal reduction on the air purification performance of the Go film was studied , and make a preliminary discussion on the mechanism; finally, the applicability of Go material application is studied.

The following is a list of testing instruments used in this experimental research, for reference by industry users:

Raw Material Performance Testing - Spectrum Chromatography
Detection Instrument Scheme | Graphene Oxide Film Preparation and Atmospheric Purification Mechanism Research with Figure 1Cepu XRF-W7 X Fluorescence Spectrometer
Specification parameters: Elemental analysis ranges from elements between sulfur S-uranium U, sample form solid, liquid, powder, can be directly detected, the minimum detection limit is 2ppm, the test time is 60s-200s (automatically adjusted by software), X-ray source X-ray light tube (no radiation), X-ray tube window material beryllium window, X-ray tube service life is more than 20,000 hours, Detector electric cooling Si-Pin Detector (a new generation of Si-Pin Detector imported from the United States), suitable for resolution Rate 145±5eV, high-voltage power supply 0-50kev, 0-2mA, high-voltage protection measures overvoltage self-protection, self-recovery, high-definition camera positioning system is clear, accurate and convenient, integrated industrial computer Windows7 operating system (no need to buy another computer), Collimator spot φ1mm, 3mm, 4mm (automatic selection by software), working environment temperature -11°C--46°C, working environment relative humidity ≤85%, input power AC 220V±10%, 50Hz (recommended to configure a clean and stable power supply ), rated power 128W, instrument size 650mm*450mm*350mm, sample chamber size 280mm*280mm*200mm, weight about 32Kg
Laboratory General Equipment - Environment
Detection Instrument Scheme | Graphene Oxide Film Preparation and Atmospheric Purification Mechanism Research with Figure 2Sunny Hengping DC-1030 low temperature constant temperature bath
Specification parameters: temperature control range -10~95°C, temperature fluctuation ±0.05°C, temperature sensor Pt100, temperature resolution 0.1°C, working tank volume 30L, opening size 270*220mm, working tank depth 270mm, working tank material DC0504B stainless steel , pump flow rate 10L/min, external dimensions 520*550*1050mm, box material DC0504B stainless steel
Membrane Proofing- Membrane
Detection Instrument Scheme | Graphene Oxide Film Preparation and Atmospheric Purification Mechanism Research with Figure 3Domestic TBJ-X4-XB vacuum adsorption wire rod heating integrated coating testing machine
Specification parameters: coating speed 2~200mm/s, coating width 300*400mm (coating length 0-400mm can be set arbitrarily), coating speed digital display, different speeds, vacuum adsorption size 300*400mm (customizable) , Vacuum hole diameter Φ1.2mm, vacuum hole distance 20*20mm, coating rod specifications 1 domestic wire rod + 1 imported wire rod with a precision up to 1μm, effective coating width 300mm (determine the coating thickness according to the wire rod model), Host power supply 220V 50HZ, overall size 630*410*520mm, weight 65kg, speed control stepless speed change, bottom plate material aluminum alloy, heating temperature range RT+~200℃, temperature uniformity temperature ±3℃, power 1500W, Vacuum Pump size 380*180 *280mm, optional accessories leak tank, substrate fixing fixture, fine-tuning leveling support leg device, glass plate, silicone pad and weight (for the application of uneven coating substrate thickness), coating film width control baffle, Customizable functional jet system device, UV solid containing device, automatic ink filling system
Film proofing - spraying
Detection Instrument Scheme | Graphene Oxide Film Preparation and Atmospheric Purification Mechanism Research with Figure 4Polaroid R-4300-S11 Spray Gun
Specification parameters: paint supply method suction/pressure feed, nozzle diameter 1.1mm, spraying distance 200mm, air consumption 360L/min, paint spraying volume 380ml/min, spraying air pressure 2.0-2.5 (0.2-0.24)kg/cm² (Mpa), spray width 310mm, applicable air gun cap type RP, air interface 1/4PF, air cap material copper, nozzle material stainless steel, gun needle material stainless steel, high atomization effect atomization, weight 522g, application water-based car spraying ,
Environmental testing - temperature and humidity control
Detection Instrument Scheme | Graphene Oxide Film Preparation and Atmospheric Purification Mechanism Research with Figure 5Ronghua DZF-6050 vacuum Drying Oven
Specification parameters: temperature control range 50~250℃, volume 53L, studio size 415*370*345mm, studio material stainless steel, input power 1000W, double-layer toughened observation window, bulletproof glass door

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