CAJ | 학술논문

在运用X射线衍射仪（ XRD）、扫描电子显微镜与能谱仪（ SEM-EDS）和傅立叶红外光谱议（ FTIR）等仪器分析烧烤竹炭表面结构特性基础上，研究其对水体中铵氮的静态吸附行为。结果表明，以微孔为主的烧烤竹炭表面含有多种含氧官能团，如羟基、羧基等，同时还含有亚甲基、反异烯烃、芳香族和脂肪族结构；烧烤竹炭对铵氮的吸附在80 min内基本达到吸附平衡，其吸附量随着水溶液中铵氮的增加而增加，Freundlich方程能够更好地描述铵氮在烧烤竹炭上的等温吸附行为；系统的ΔG ＜0，ΔH ＞0，烧烤竹炭对铵氮的吸附作用是一个自发的吸热过程；铵氮在烧烤竹炭上的吸附动力学数据符合准二级方程，吸附过程受外部液膜扩散、表面吸附和颗粒内扩散过程的影响。
재운용X사선연사의（ XRD）、소묘전자현미경여능보의（ SEM-EDS）화부립협홍외광보의（ FTIR）등의기분석소고죽탄표면결구특성기출상，연구기대수체중안담적정태흡부행위。결과표명，이미공위주적소고죽탄표면함유다충함양관능단，여간기、최기등，동시환함유아갑기、반이희경、방향족화지방족결구；소고죽탄대안담적흡부재80 min내기본체도흡부평형，기흡부량수착수용액중안담적증가이증가，Freundlich방정능구경호지묘술안담재소고죽탄상적등온흡부행위；계통적ΔG ＜0，ΔH ＞0，소고죽탄대안담적흡부작용시일개자발적흡열과정；안담재소고죽탄상적흡부동역학수거부합준이급방정，흡부과정수외부액막확산、표면흡부화과립내확산과정적영향。
The surface structure characteristics of barbecue bamboo charcoal was analyzed using X -ray diffraction (XRD), scanning electron microscope and X-ray energy dispersive spectrometer (SEM-EDS), and Fourier trans-form infrared spectrometer ( FTIR) .The adsorption behavior of ammonium onto bamboo charcoal was also investiga-ted by adsorption experiments .The results showed that the barbecue bamboo charcoal was dominated with micro -pore, and contained various oxygen-functional groups (-OH,-COOH), methylene, trans-isoolefine, aromatic and ali-phatic compounds.Ammonium adsorption equilibrium was reached within about 80 min, and the adsorption capacity of barbecue bamboo charcoal tended to increase with elevated ammonium concentration in solutions .The Freundlich isotherm equation could well describe the isothermal adsorption behavior of ammonium on barbecue bamboo charcoal . The ΔG of the equation is negative , whileΔH is positive, indicating that the adsorption reaction of ammonia nitrogen is spontaneous .The pseudo-second-order model could effectively explain the adsorption kinetics .Pore diffusion , sur-face adsorption and intra-particle diffusion would affect the adsorption process .