| 伊利石硅渣蒸汽辅助合成麦羟硅钠石及其对Cu2+的吸附研究 |
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| 引用本文： | 管冬冬,历新宇,陈爽,苏重洋,杨思祺,姜男哲.伊利石硅渣蒸汽辅助合成麦羟硅钠石及其对Cu2+的吸附研究[J].硅酸盐通报,2021,40(1):194-200. |
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| 作者姓名： | 管冬冬 历新宇 陈爽 苏重洋 杨思祺 姜男哲 |
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| 作者单位： | 延边大学理学院化学系,延吉 133000;延边大学工学院高分子材料与工程系,延吉 133000;延边大学理学院化学系,延吉 133000;延边大学工学院高分子材料与工程系,延吉 133000 |
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| 基金项目： | 国家自然科学基金(21661031,21263026) |
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| 摘 要： | 以伊利石硅渣为原料,采用蒸汽辅助转化法(SAC)合成了高产率、高结晶度的纯相麦羟硅钠石(Magadiite)。采用X射线衍射仪(XRD)和扫描电子显微镜(SEM)考察了钠硅比(n(Na2O)/n(SiO2))、晶化温度和晶化时间对合成样品结构及形貌的影响。结果表明,该体系的初步优化合成条件为钠硅比0.15,晶化温度170 ℃,晶化时间16 h,样品形貌为玫瑰花形(尺寸约12 μm)。对合成的Magadiite进行Cu2+吸附性能测试,探究了吸附剂用量、pH值、吸附时间和Cu2+初始浓度对吸附效果的影响。在吸附剂用量为2 g/L,pH值为5,吸附时间为30 min时,Magadiite对Cu2+的最大吸附量为25.99 mg/g。
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| 关 键 词： | 伊利石硅渣 蒸汽辅助转化 麦羟硅钠石 Cu2+ 吸附性能 |
| 收稿时间： | 2020-08-07 |
Steam-Assisted Synthesis of Magadiite from Illite Silica Residue andIts Adsorption of Cu2+ |
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| GUAN Dongdong,LI Xinyu,CHEN Shuang,SU Chongyang,YANG Siqi,JIANG Nanzhe.Steam-Assisted Synthesis of Magadiite from Illite Silica Residue andIts Adsorption of Cu2+[J].Bulletin of the Chinese Ceramic Society,2021,40(1):194-200. |
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| Authors: | GUAN Dongdong LI Xinyu CHEN Shuang SU Chongyang YANG Siqi JIANG Nanzhe |
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| Affiliation: | 1. Department of Chemistry,College of Science,Yanbian University,Yanji 133000,China; 2. Department of Polymer Materials and Engineering,College of Engineering,Yanbian University,Yanji 133000,China |
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| Abstract: | The pure phase magadiite with high yield and high crystallinity was synthesized using illite silica residue by steam-assisted conversion (SAC).X-ray diffractometer (XRD) and scanning electron microscopy (SEM) were used to investigate the influences of Na2O/SiO2 molar ratio,crystallization temperature (T) and crystallization time (t) on the structure and morphology of synthesized samples.The results show that the preliminary optimization of synthesis conditions of this system are n(Na2O)/n(SiO2)=0.15,T=170 ℃,t=16 h,and the sample morphology is rosette-like (about 12 μm).The Cu2+ adsorption test of magadiite synthesized was carried out,and the effects of adsorbent dosage,pH value,adsorption time and Cu2+ initial concentration on the adsorption effect were studied.The results show that when the adsorbent dosage is 2 g/L,the pH value is 5,and the adsorption time is 30 min,the maximum adsorption capacity of magadiite for Cu2+ is 25.99 mg/g. |
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| Keywords: | illite silica residue steam-assisted conversion magadiite Cu2+ adsorption property |
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