CAJ | 학술논문

采用盐酸对竹木质纤维素进行改性，研究其吸附水溶液中铅离子的性能。采用傅立叶红外（FT-IR）对其结构进行了表征。研究了溶液pH、吸附时间、吸附剂用量、溶液浓度等对吸附容量的影响。实验结果表明，4 h后达到吸附平衡，在Pb(II)溶液浓度在100 mg/L时，pH在4.5～5.5范围内时达到最大吸附量，盐酸改性的竹木质纤维素吸附性能较高，表明HCl改性后的竹木质纤维素吸附性能得到提高。利用竹木质纤维素来吸附重金属离子，具有绿色环保，无污染点成本低廉等优点，具有良好的应用前景。
채용염산대죽목질섬유소진행개성，연구기흡부수용액중연리자적성능。채용부립협홍외（FT-IR）대기결구진행료표정。연구료용액pH、흡부시간、흡부제용량、용액농도등대흡부용량적영향。실험결과표명，4 h후체도흡부평형，재Pb(II)용액농도재100 mg/L시，pH재4.5～5.5범위내시체도최대흡부량，염산개성적죽목질섬유소흡부성능교고，표명HCl개성후적죽목질섬유소흡부성능득도제고。이용죽목질섬유소래흡부중금속리자，구유록색배보，무오염점성본저렴등우점，구유량호적응용전경。
A bioadsorbent for the remove of Pb(II) from aqueous solution was prepared from the bamboo modified with hydrochloric acid. The modified bamboo before and after adsorption were characterized by Fouri-er transform infrared spectroscop y (FT-IR). Batch adsorption exeriments were carried out to remove lead ions from the aqueous solutions using the bioadsorbent. The effect of pH, adsorption time, dosage of bioadsorbent and initial concentration of Pb(II) on the adsorption capacity of Pb2+were investigated. Results showed that the adsorption equilibrium was attained after 4 hours of contact. Results showed that the maximum of removal effi-ciency was achieved in the pH range 4.5-5.5 and with initial Pb (II) concentration of 100 mg/L. All results showed that modified bamboo was an attractive, alternative low-cost biosorbent for removal of Pb(II) from aque-ous solution.