CAJ | 학술논문

采用水蒸气活化法制备得到椰壳活性炭,以850℃活化得到微孔率最高的活性炭为吸附剂,考察其对肌酐的体外吸附性能,探讨了吸附时间、肌酐初始质量浓度、吸附温度及 pH值对肌酐吸附量的影响。结果表明,微孔率高的(71.0%)椰壳活性炭对肌酐吸附性能良好；30 min 内吸附量迅速升至57.8 mg/g,7 h 时达到平衡,平衡吸附量为76.4 mg/g；在30~70℃温度范围内,肌酐吸附量随温度升高而增加；酸性环境有利于肌酐的吸附,pH值为2时吸附量达到最大,为123.55 mg/g。
채용수증기활화법제비득도야각활성탄,이850℃활화득도미공솔최고적활성탄위흡부제,고찰기대기항적체외흡부성능,탐토료흡부시간、기항초시질량농도、흡부온도급 pH치대기항흡부량적영향。결과표명,미공솔고적(71.0%)야각활성탄대기항흡부성능량호；30 min 내흡부량신속승지57.8 mg/g,7 h 시체도평형,평형흡부량위76.4 mg/g；재30~70℃온도범위내,기항흡부량수온도승고이증가；산성배경유리우기항적흡부,pH치위2시흡부량체도최대,위123.55 mg/g。
Activated carbons were prepared from coconut shell by steam activation at different activation temperatures. The effects of adsorption time, initial concentration of solution, pH value and reaction temperature on the adsorption behavior of creatinine on coconut-shell activated carbon which was activated at 850 ℃ was studied. The results showed that activated carbon with high microporosity is an excellent adsorbent for creatinine. The adsorption equilibrium was reached in 7 h and its equilibrium adsorption capacity was 76. 4 mg/g. The adsorption ability increased with the increase of temperature while temperature ranged between 30℃ and 70℃. The adsorption capacity of CAC for creatinine on the acid conclition was better than that on the basic condition. When pH value is 2, the maximum adsorption capacity was found to be 123. 55 mg/g.