大豆秸秆制备活性炭及其Cu2+吸附性能的研究

TS201.1; 以大豆秸秆为原料,采用ZnCl2活化法制备大豆秸秆活性炭(soybean straw activated carbon,记作SSAC),通过扫描电子显微镜(SEM)、傅立叶变换红外光谱(FT-IR)对样品进行形貌表征,研究了炭化温度、炭化时间等条件对SSAC亚甲基蓝吸附值的影响,通过静态实验研究了SSAC对水溶液中Cu2+的吸附特性,并考察了溶液pH、温度和时间对SSAC吸附Cu2+的影响.结果表明,制备SSAC的优化工艺条件是:ZnCl2活化浓度3 mol/L,炭化温度700℃,炭化时间40 min,该条件下SSAC的亚甲基蓝吸附值为1.84 mL/0.1 g.当Cu2+溶...

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Published in食品工业科技 Vol. 42; no. 1; pp. 68 - 74
Main Authors 燕翔, 张少飞, 王都留, 裴平, 王文健, 李娟, 李菲, 赵艳霞
Format Journal Article
LanguageChinese
Published 陇南师范高等专科学校农林技术学院,甘肃陇南742500%新疆阿图什市格达良乡库也克小学,新疆阿图什845355%陇南市成县鸡峰镇张坪小学,甘肃陇南742513 2021
Subjects
Cu2
大豆秸秆
吸附性能
层状裂隙
活性炭
Online AccessGet full text
ISSN1002-0306
DOI10.13386/j.issn1002-0306.2019080216

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Abstract TS201.1; 以大豆秸秆为原料,采用ZnCl2活化法制备大豆秸秆活性炭(soybean straw activated carbon,记作SSAC),通过扫描电子显微镜(SEM)、傅立叶变换红外光谱(FT-IR)对样品进行形貌表征,研究了炭化温度、炭化时间等条件对SSAC亚甲基蓝吸附值的影响,通过静态实验研究了SSAC对水溶液中Cu2+的吸附特性,并考察了溶液pH、温度和时间对SSAC吸附Cu2+的影响.结果表明,制备SSAC的优化工艺条件是:ZnCl2活化浓度3 mol/L,炭化温度700℃,炭化时间40 min,该条件下SSAC的亚甲基蓝吸附值为1.84 mL/0.1 g.当Cu2+溶液初始浓度为10 mg/L,SSAC投加量为0.2 g,在pH5.0、温度50 ℃、时间50 min时,SSAC对于Cu2+离子的吸附效果最好,最大吸附量4.589 mg/g,脱除率为91.77％.SEM和FT-IR观察发现,大豆秸秆活性炭具有丰富发达的基于多层石墨状的裂隙结构,表面含有丰富的C=0、0-H、C=C和C-0含氧官能团.大豆秸秆活性炭对于Cu2+离子吸附性能较好,适用于含Cu2+废水处理及金属离子吸附.
AbstractList TS201.1; 以大豆秸秆为原料,采用ZnCl2活化法制备大豆秸秆活性炭(soybean straw activated carbon,记作SSAC),通过扫描电子显微镜(SEM)、傅立叶变换红外光谱(FT-IR)对样品进行形貌表征,研究了炭化温度、炭化时间等条件对SSAC亚甲基蓝吸附值的影响,通过静态实验研究了SSAC对水溶液中Cu2+的吸附特性,并考察了溶液pH、温度和时间对SSAC吸附Cu2+的影响.结果表明,制备SSAC的优化工艺条件是:ZnCl2活化浓度3 mol/L,炭化温度700℃,炭化时间40 min,该条件下SSAC的亚甲基蓝吸附值为1.84 mL/0.1 g.当Cu2+溶液初始浓度为10 mg/L,SSAC投加量为0.2 g,在pH5.0、温度50 ℃、时间50 min时,SSAC对于Cu2+离子的吸附效果最好,最大吸附量4.589 mg/g,脱除率为91.77％.SEM和FT-IR观察发现,大豆秸秆活性炭具有丰富发达的基于多层石墨状的裂隙结构,表面含有丰富的C=0、0-H、C=C和C-0含氧官能团.大豆秸秆活性炭对于Cu2+离子吸附性能较好,适用于含Cu2+废水处理及金属离子吸附.
Author 燕翔
赵艳霞
王都留
王文健
李菲
张少飞
李娟
裴平
AuthorAffiliation 陇南师范高等专科学校农林技术学院,甘肃陇南742500%新疆阿图什市格达良乡库也克小学,新疆阿图什845355%陇南市成县鸡峰镇张坪小学,甘肃陇南742513
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Author_FL ZHAO Yan-xia
LI Fei
PEI Ping
WANG Du-liu
LI Juan
YAN Xiang
ZHANG Shao-fei
WANG Wen-jian
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大豆秸秆
吸附性能
层状裂隙
活性炭
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Title 大豆秸秆制备活性炭及其Cu2+吸附性能的研究
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