摘要
制备一种新型海藻酸钠多胺吸附剂,通过构建三维网状物的形式,将其制备成能吸附Cu(Ⅱ)的水凝胶微球。并探究不同的酸度、盐度、时间、有机物浓度条件下吸附剂对Cu(Ⅱ)的吸附性能。结果表明,在pH=5时,吸附剂对Cu(Ⅱ)的去除效果最好。较低浓度的磺胺甲恶唑、柠檬酸、腐殖酸会促进吸附剂对铜离子的吸附,pH=5时,促进作用最优的磺胺甲恶唑、柠檬酸及腐殖酸浓度分别为0.5,0.4,0.4 mmol/L,最大吸附量Q_(e)分别为0.7708,0.7113,0.6988 mmol/g。
A new type of sodium alginate polyamine adsorbent was prepared.By constructing a three-dimensional network,the hydrogel microspheres capable of adsorbing Cu(Ⅱ)were prepared.The adsorption of Cu(Ⅱ)by the adsorbent was investigated under the conditions of different acidity,different salinity,different time and different organic concentration.When pH=5,the adsorbent has the best removal effect on Cu(Ⅱ).The lower concentrations of sulfamethoxazole,citric acid and humic acid can promote the adsorption of SA on copper ions.When pH=5,the best concentrations of sulfamethoxazole,citric acid and humic acid are 0.5,0.4,0.4 mmol/L,the maximum adsorption capacity Q e was 0.7708,0.7113,0.6988 mmol/g respectively.
作者
孙诗书
张花红
李邦森
张大帅
张小朋
史载锋
SUN Shi-shu;ZHANG Hua-hong;LI Bang-sen;ZHANG Da-shuai;ZHANG Xiao-peng;SHI Zai-feng(Key Laboratory of Water Pollution Treatment&Resource Reuse,College of Chemistry and Chemical Engineering,Hainan Normal University,Haikou 571158,China;School of Chemistry and Chemical Engineering,Nanjing University,Nanjing 210023,China;Engineering Research Center of Biofilm Water Purification and Utilization Technology of Ministry of Education,Anhui University of Technology,Ma’anshan 243032,China)
出处
《应用化工》
CAS
CSCD
北大核心
2023年第6期1778-1784,1799,共8页
Applied Chemical Industry
基金
海南省自然科学基金(220QN251)
海南省自然科学基金创新研究团队项目(222CXTD513)
生物膜法水质净化及利用技术教育部工程研究中心开放基金资助项目(BWPU2022KF01)
海南省重点研发计划项目(ZDYF2019140)。
关键词
海藻酸钠
水凝胶
吸附
重金属
多胺
sodium alginate
hydrogel
adsorption
heavy metal
polyamine
