Characteristics Of Animal Pyrolysis Carbonization Material And For Removal Of Heavy Metals From Aqueous Solution

In the present study,dead pig,chicken and soft-shelled turtle pyrolysis carbonization materials were utilized for environmental applications.Dead pig pyrolysis carbonization material?PPCM?and thiol-functionalized dead pig pyrolysis carbonization material?TPPCM?were then employed for the adsorptive removal of Cu²⁺ and Hg²⁺ from aqueous.Carbonization materials were characterized with assorted research methods such as scanning electron microscope?SEM?,X ray energy dispersion spectrometry?XRD?and Fourier transform infriared spectrometry?FTIR?.Characterization analyses unveiled the existence of abundan pores and PO43-functional groups.The main elements of pyrolysis carbonization material were Ca,P,C,O and so on;which was much different from the plant biomass charcoal.Ca and P contents in PPCM were found to be about 52.37%and 17.25%respectively.Studies showed that the carbonization material was amorphous in structure,while the crystal form did not make any difference after the adsorption.Influences of several experimental parameters including initial pH,temperature and adsorption time for the removal of Cu²⁺ from aqueous solutions using PPCM were investigated.Results demonstrated that the optimal initial pH value for the removal Cu²⁺ was about 5.0,and the higher temperature favored Cu²⁺ removal from aqueous solutions.On the other side,adsorption kinetics,isotherms and thermodynamics were utilized for the adsorption data,and good correlation coefficients got received in pseudo-second-order kinetics models.Experimental data of Cu²⁺ removal using PPCM fitted well in Langmuir isotherm model.Influences of several experimental parameters for the removal of Hg²⁺ from aqueous solutions using PPCM were investigated.Results demonstrated that theoptimal beginning pH value for removal Hg²⁺ was about 2.0,the adsorption capacity was of 14.57 mg/g on Hg²⁺when pH value was 5.0.The higher temperature favored Hg²⁺ removal of target solutions.Influences of several experimental parameters for the removal of Hg²⁺ from aqueous solutions using thiol-functionalized dead pig pyrolysis carbonization material?TPPCM?were investigated.Results demonstrated that initial pH value has minor effect on the the removal Hg²⁺,and the higher temperature favored Hg²⁺ removal of target solutions.On the other side,adsorption kinetics,isotherms and thermodynamics got utilized to the adsorption data,and good correlation coefficients got received in pseudo-second-order kinetics models.The Langmiur isotherm model fitted perfectly with experimental data of Hg²⁺ removal using TPPCM.Amino-functionalized pig carbonization material?PCM@SiO2-NH2?was synthesized via a co-condensation process for the enhanced removal of Cu²⁺ from aqueous solutions.The adsorption performance and influencing factors of PCM@SiO2-NH2 for the adsorption of Cu²⁺ were studied.PCM@SiO2-NH2 with specific surface area?62.2m2/g?showed the maximum adsorption capacity of 25.3 mg/g on Cu²⁺?the maximum adsorption capacity of PCM was 59.88 mg/g,which was found higher than prior Amino-functionalization?.The adsorption results of Cu²⁺ got fitted perfectly to Langmiur isotherm while also to pseudo-second-order kinetic models.Adsorption capacity grew with increasing temperature while removal reaction got shew of endothermic.