Functional Reutilization Of Discarded Hair Fiber

After a century of development,synthetic polymer have been explored a broad range of applications due to their lost of advantages,such as lightness,easy-machined,beautiful and practical.They can meet the needs of different fields,and gradually become the ideal substitutes of most of traditional materials applied in daily life.But,huge volumes of fossil fuels,non-renewable energy resource,are used everyday in the form of oil and coal,which leads to seriously abandon and squander of biomass resources.With the more and more prominent energy and environment issues,reuse of waste biomass resources is receiving much attention recently because of their recyclability and cheapness.Therefore,by developing technology,environment-friendly waste biomass materials can be changed into high value-added materials with inexpensive,clean and high quality.So it has great significance to change waste into treasure as well as govern waste by waste.In this study,using the cheap,non-toxic and waste biomass?feather and pig hair?as raw material,underwater oleophobic materials would be accomplished via a simple modifications which dramatically improve their hydrophilicity and waste absorption performance.Meanwhile,it also can as adsorbents for the treatment of dye wastewater.Further,choosing the feather as the precursorand adopting the simple method,it has prepared a high specific surface area and high adsorption performance's carbon materials,using them to deal with the water pollution which has been dyed.The main contents include the following sections:Firstly,choosing the poor hydrophilic feather fiber?CF?as raw materials as well as NaHSO₃ and KH570 as modifier,we sucefully prepared surface grafting feather fibers?CF-OH?via the method of surface reduction and surface graft modification.Further,we had not only characterized and analysied its structure and micromorphology adopting FT-IR?TG?SEM and so on,but surveying the hydrophilic/hydrophobic and hydrophilic/hydrophobic oil performance via contact angle measurement.It turned out that KH570 could effectively improve the surface morphology of feather fiber,that is,from hydrophilic and hydrophobic into hydrophilic and oleophilic.Among them,the water adsorption ratio of CF-OH had improved from 0.38?g/g?to 9.30?g/g?of the raw material.Hence,CF-OH had the underwater oleophobic performance.Second,adopting CV and MB as adsorbate models,the adsorption activity study of CF-OH was investigated.The decolorization rate of CF-OH for CV and MB could separately up to 89.95%and 81.66%,respectively.The adsorption equilibrium and adsorption kinetic and thermodynamics of MB and CV on the adsorbent were studied.Dye waste water was treated with CF-OH and darker than raw materials?CF?.So,CF-OH was proved to have better adsorptive effect than CF.Thirdly,we acquired MPF through modifying original obsoleting PF employed simple techniques.The microscopic morphology of the PF and MPF were well characterized and analyzed by FT-IR?SEM?TG and contact angle tasting measurements.The results revealed that a huge number of carboxyl groups existed in the surface of the treated Pig's wool,and also the surface became rough,in addition,the immersion performance of the original hydrophobic lipophilic was changed into amphipathic properties,that was,the surface of the MPF possed oleophobic in atmosphere of water.Fourth,using pretreated feather?CF?as raw materials,CFAC-K was prepared by one step carbonization-activation method.The structure and characterization were analyzed by FT-IR,BET,SEM and TG.Based on the above results,the pore-forming mechanisms were introduced and discussed in detail.The results showed that the resulting activated carbon materials possed hierarchical pores and high specific surface area.Fifth,adopting methylene blue as adsorbate models,the studies of the CFAC-K6adsorption activity were investigated.The results indicated that the decolorization rate of CFAC-K6 for MB as well as adsorption capacity were as high as 99.91%and 299.21mg/g when the initial concentration of MB was 300 mg/L,the dosage of CFAC-K6wass 0.05 g under 25oC,pH=6⁷ as well as the adsorption time of 50 min.The equilibrium data of CFAC-K6 were fitted with Langmuir isotherm models well,belonging to monolayer adsorption.The kinetic studies of CFAC-K6 showed that the pseudo second-order rate equation could fit the experimental data well therefore chemical adsorption played a dominant role.In summary,this article used biomass waste as raw material for modification to a high-value-additive,which had wide applications in fouling and pollution control.