Arsenic adsorbing fiber and synthesizing method thereof
A technology for absorbing fibers and fibers, applied in chemical instruments and methods, adsorbing water/sewage treatment, alkali metal compounds, etc., can solve the problems of less research on polymer materials and fiber materials, and achieve easy elution and regeneration, and large specific surface area , The effect of stable performance and quality
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[0017] Example 1
[0018] 5g acrylic fiber was immersed in 30mL of ethylenediamine for reaction at a temperature of 90°C for 4h; then the fiber was washed with deionized water and immersed in 100mL of 0.2M hydrochloric acid for reaction at a temperature of 30°C for time 6h; Finally, the fiber is washed with deionized water, dried at 70°C to a constant weight, the weight is 5.91g, the weight gain rate is 18.2%, and the amine content is measured to be 4.51mmol / g fiber. Its infrared spectrum is attached figure 1 As shown, there is a significant change compared with the infrared spectrum of acrylic fiber, the absorption peak of cyano group (2243cm -1 ) Is significantly weakened, the absorption peak of the amine group (3428cm -1 , 1616cm -1 ) Significantly enhanced.
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[0019] Example 2
[0020] 5g acrylic fiber was immersed in 50mL of triethylenetetramine for reaction at 140℃ for 2h; then the fiber was washed with deionized water and immersed in 100mL of 0.5M hydrochloric acid for reaction at 40℃ , Time 6h; finally, the fiber was washed with deionized water, dried at a temperature of 70 ℃ to a constant weight, the weight was 6.03 g, the weight gain rate was 20.6%, and the amine content was measured to be 5.33 mmol / g fiber.
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