三乙烯四胺固化单宁吸附剂制备及性能研究OACSTPCD
Preparation and adsorption performance of tannin cured with triethylenetetramine
利用曼尼希反应将三乙烯四胺固化到单宁表面,制备得到胺化改性单宁吸附剂TETA-TA,并通过正交实验优化制备工艺.采用红外光谱、扫描电镜、比表面积及孔隙度分析仪对TETA-TA进行了结构表征,探讨了其对Cd2+和Pb2+的吸附性能,研究不同pH值、时间、金属离子初始质量浓度对吸附的影响.正交结果表明反应最佳条件为:反应温度为80℃,反应时间为4h,醋酸用量为4%(w/%),n(TA)∶n(TETA)∶n(甲醛)=1∶2∶2.5.吸附实验表明:pH值…查看全部>>
An amine-modified tannin adsorbent(TETA-TA)was prepared by Mannich reaction,in which triethylenetetramine(TETA)was used to cure tannin,and its preparation process was optimized by orthogonal experiment.The structure of TETA-TA was characterized by FT-IR,SEM and BET,and the adsorption properties of the adsorbent to Cd2+ and Pb2+ were investigated at different pH,different adsorption time and different initial concentrations of metal ions.The results of orthog…查看全部>>
金绍娣;许雪儿;顾东雅
盐城工业职业技术学院,江苏 盐城 224005盐城工业职业技术学院,江苏 盐城 224005盐城工业职业技术学院,江苏 盐城 224005
环境科学
三乙烯四胺单宁Cd2+Pb2+吸附
triethylenetetraminetanninCd2+Pb2+adsorption
《日用化学工业（中英文）》 2024 (3)
290-297,8
江苏省科技厅产学研项目(BY20231102)
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