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Nano calcium peroxide resin matrix composite for removing formaldehyde in air and preparation method of nano calcium peroxide resin matrix composite

A technology of calcium peroxide and composite materials, applied in chemical instruments and methods, separation methods, gas treatment, etc., can solve the problem of reducing the reaction rate and removal efficiency of pollutant removal, secondary pollution of difficult-to-remove pollutants, and reduction of pollutant exposure Area and other issues, to achieve the effect of accelerating the degradation rate, high mechanical strength, and high safety

Inactive Publication Date: 2016-12-07
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] For the traditional non-nano-scale CaO in the prior art 2 The particle size is too large and easy to agglomerate, difficult to disperse, reducing the contact area with pollutants, thereby reducing the reaction rate and removal efficiency of pollutant removal; powdered nano-CaO 2 Difficult to apply in air purifiers to remove pollutants and secondary pollution and other issues, the invention provides a nano-calcium peroxide resin-based composite material for removing formaldehyde in the air and its preparation method

Method used

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  • Nano calcium peroxide resin matrix composite for removing formaldehyde in air and preparation method of nano calcium peroxide resin matrix composite
  • Nano calcium peroxide resin matrix composite for removing formaldehyde in air and preparation method of nano calcium peroxide resin matrix composite
  • Nano calcium peroxide resin matrix composite for removing formaldehyde in air and preparation method of nano calcium peroxide resin matrix composite

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Embodiment 1

[0046] A nano calcium peroxide resin-based composite material for removing formaldehyde in the air comprises an oxidizing agent and a carrier, and the oxidizing agent generated in situ is on the carrier.

Embodiment 2

[0048] combine figure 1 , a nano-calcium peroxide resin-based composite material for removing formaldehyde in the air, which includes an oxidizing agent and a carrier, the carrier has an oxidizing agent generated in situ, and the carrier is resin SD300; the oxidizing agent is nano-scale nCaO generated in situ 2 , the mass ratio of oxidant and carrier is 1:(5-12), and there is nanoscale nCaO generated in situ on resin SD300 2 . In the specific implementation and application of this embodiment, multiple application schemes are arranged, and the mass ratio of the oxidizing agent and the carrier can be selected as values ​​such as 1:5, 1:12, 1:8 and 1:10.

Embodiment 3

[0050] A kind of nano-calcium peroxide resin-based composite material that removes formaldehyde in the air of the present embodiment is similar to the scheme in embodiment 1 and embodiment 2, wherein, the difference is that the mass ratio of oxidizing agent and carrier is 1:( 5-12). In the specific implementation and application of this embodiment, multiple application schemes are arranged, and the mass ratio of the oxidizing agent and the carrier can be selected as values ​​such as 1:5, 1:12, 1:8 and 1:10.

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Abstract

The invention discloses a nano calcium peroxide resin matrix composite for removing formaldehyde in air and a preparation method of the nano calcium peroxide resin matrix composite, and belongs to the field of indoor air pollution control. The nano calcium peroxide resin matrix composite comprises an oxidizing agent and a carrier, the carrier is macroporous adsorption type styrene resin SD300, the oxidizing agent is in-situ generated nanoscale CaO2 (nCaO2) on SD300, the reagent used for in-situ generation of nCaO2 comprises CaCl2, ammonia water and H2O2, and the mass ratios between resin and CaCl2, ammonia water and H2O2 are 1:(0.5-10), 1:(0.1-5) and 1:(5-15) respectively. The prepared nCaO2-SD300 composite has the advantages of large CaO2 supported quantity and difficulty in stripping off; formaldehyde can be converted into calcium formate, CO2 and H2O rapidly and enduringly at room temperature, secondary pollution is avoided, and safety is high; the composite is simple in production process, low in cost, convenient to use and wide in application range.

Description

technical field [0001] The invention relates to a nano-calcium peroxide resin-based composite material and a purification method for removing formaldehyde in the air, belonging to the field of indoor air pollution control. Background technique [0002] About 65% to 85% of the time in people's lives is spent indoors, and indoor air quality has a great impact on human health, life and work. At present, formaldehyde is the most important pollutant in indoor air, mainly from the following three aspects: first, interior decoration materials and architectural decorations; second, incomplete combustion of indoor and outdoor fuels and tobacco; third, some daily Preservatives added to supplies (such as disinfectants and cosmetics), survey data on formaldehyde content in different indoor environments show that the order of formaldehyde concentration is: public places > central office buildings > residential buildings > schools. [0003] Formaldehyde has been determined by th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/81B01D53/72
CPCB01D53/72B01D53/81B01D2257/708B01D2258/06B01D2252/20B01D2251/404B01D2251/106
Inventor 毛亮郭敬
Owner NANJING UNIV
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