CAJ | 학술논문

将普通零价锌在滚压振动磨中研磨13 h后,制备出不规则片状、粒径为20~30 nm的纳米零价锌(NZVZ)。采用所制备的 NZVZ 降解甲基橙,系统研究了搅拌速度、NZVZ 投入量、甲基橙初始浓度和NaCl的加入对甲基橙降解效率的影响。结果表明, NZVZ表面反应活性增高,反应60 min 时,2 g/L 的NZVZ对甲基橙降解率为98.5%,比4 g/L 的普通零价锌高60.3%,其中间降解产物有对氨基苯磺酸和对氨基二甲基苯胺。降解率随转速、NZVZ 投入量的增加而升高,随 MO 初始浓度的增加而降低；加入 NaCl能促进反应进行,且随着投入量增加降解率增加。通过对实验数据的分析,验证 NZVZ降解 MO 过程符合伪一级动力学方程式。
장보통령개자재곤압진동마중연마13 h후,제비출불규칙편상、립경위20~30 nm적납미령개자(NZVZ)。채용소제비적 NZVZ 강해갑기등,계통연구료교반속도、NZVZ 투입량、갑기등초시농도화NaCl적가입대갑기등강해효솔적영향。결과표명, NZVZ표면반응활성증고,반응60 min 시,2 g/L 적NZVZ대갑기등강해솔위98.5%,비4 g/L 적보통령개자고60.3%,기중간강해산물유대안기분광산화대안기이갑기분알。강해솔수전속、NZVZ 투입량적증가이승고,수 MO 초시농도적증가이강저；가입 NaCl능촉진반응진행,차수착투입량증가강해솔증가。통과대실험수거적분석,험증 NZVZ강해 MO 과정부합위일급동역학방정식。
The ordinary zinc powder was milled for 1 3 h with roller vibration milling and produced irregular sheet nanoscale zero-valent zinc particles(NZVZ).The particle size was between 20 and 30 nm.This paper here was focused on the degradation of water soluble methyl orange(MO)by NZVZ,and rotation speed of magnetic stirrer,NZVZ dosage,initial MO concentration and NaCl dosage were studied systematically.It was found that the degradation of MO with 2 g/L of NZVZ was 98.5% in 60 min,which was 60.3% higher than that of using 4 g/L of ordinary zinc powder,the sulfanilic acid and 1 ,4-benzenediamine,N,N-dimethyl-as degradation pro-gress products were identified.Degradation was enhanced with increase of rotation speed and NZVZ dosage, while decreased with increase of initial MO concentration.Moreover,the existence of NaCl can promote the re-action procress and degradation increased with increase of NaCl dosage.Kinetic analyses based on the experi-mental data elucidated that the degradation process followed the pseudo first-order kinetic equation.