水钠锰矿的制备及其对Cd~(2+)的吸附性能试验研究

详细信息    查看全文 | 推荐本文 |

英文篇名：Preparation of Birnessite and Its Adsorption Performance Test for Cd~(2+) 作者：李胜英 ; 苏志恒 ; 蒋鹏杰 ; 陈慧文 ; 张艺嘉 ; 冯建海 英文作者：LI Shengying;SU Zhiheng;JIANG Pengjie;CHEN Huiwen;ZHANG Yijia;FENG Jianhai;College of Chemical and Biological Engineering,Hechi University; 关键词：反相乳液法 ; 水钠锰矿 ; 制备 ; Cd~(2+) ; 吸附 英文关键词：reverse emulsion method;;birnessite;;preparation;;Cd~(2+);;adsorption 中文刊名：SFYJ 英文刊名：Hydrometallurgy of China 机构：河池学院化学与生物工程学院; 出版日期：2019-06-27 16:35 出版单位：湿法冶金 年：2019 期：v.38;No.166 基金：自治区大学生创新创业训练计划项目(201710605082);; 2018年度广西高校中青年教师基础能力提升项目(2018KY0504);; 河池学院2018校级大学生创新创业训练项目(SJ201836) 语种：中文; 页：SFYJ201904018 页数：5 CN：04 ISSN：11-3012/TF 分类号：67-71

摘要

采用反相乳液法,以高锰酸钾为单一锰源,在恒温水浴条件下制备水钠锰矿纳米微粒,并用扫描电镜(SEM)、X射线衍射仪(XRD)、红外光谱分析仪(FTIR)、热重分析仪(TG)、能谱分析仪(EDS)对水钠锰矿微粒进行形貌结构表征,同时考察所制水钠锰矿从水体中吸附去除Cd~(2+)的效果。结果表明:所制备的水钠锰矿颗粒基本为片状,且较为纯净;对于溶液中的Cd~(2+),在313 K条件下吸附120 min,吸附量达120 mg/g,吸附行为符合Langmuir方程,吸附过程符合准二级动力学模型。
        The preparation of nanometer birnessite was prepared by inverse emulsion method using potassium permanganate as single manganese source.The morphology and structure of birnessite was characterized by SEM,XRD,IR,TG-DTG,energy spectrum.The removal of Cd~(2+)in water using the birnessite was studied.The results show that the prepared birnessite is sheet and pure.For the Cd~(2+) in solution,the adsorption capacity is about 120 mg/g under the conditions of adsorption time of 120 min and temperature of 313 K.The adsorption behavior of birnessite for Cd~(2+)corresponds to Langmuir isotherm,the adsorption process follows the pseudo second order kinetic equations.

引文

[1] 刘宇琪,谢龙悦,孟繁斌,等.水钠锰矿光电催化降解亚甲基蓝及其机理研究[J].环境科学与技术,2019,42(1):58-64.
    [2] GHALY M,EL-DARS F M,HEGAZY M M,et al.Evaluation of synthetic birnessite utilization as a sorbent for cobalt and strontium removal from aqueous solution[J].Chem Eng J,2016,284:1373-1385.
    [3] WANG Y,FENG X H,VILLALOBOS M.Sorption behavior of heavy metals on birnessite:Relationship with its Mn average oxidation state and implications for types of sorption sites[J].Chemical Geology,2012,292/293:25-34.
    [4] METWALLY S S,GHALY M,EL-SHERIEF E A.Physicochemical properties of synthetic nano-birnessite and its enhanced scavenging of Co2+ and Sr2+ions from aqueous solutions[J].Materials Chemistry and Physics,2017,193:63-72.
    [5] HOU J T,XIANG Y J,ZHENG D,et al.Morphology-dependent enhancement of arsenite oxidation to arsenate on birnessite-type manganese oxide[J].Chemical Engineering Journal,2017,327:235-243.
    [6] WANG Y,FENG X H,VILLALOBOS M,et al.Sorption behavior of heavy metals on birnessite:relationship with its Mn average oxidation state and implications for types of sorption sites[J].Chem Geol,2012,292:25-34.
    [7] LEFKOWITZ J P,ELZINGA E J.Structural alteration of hexagonal birnessite by aqueous Mn(Ⅱ):impacts on Ni(Ⅱ) sorption[J].Chemical Geology,2017,466:524-532.
    [8] WANG H W,ZHANG D Y,MOU S Y,et al.Simultaneous removal of tetracycline hydrochloride and As(Ⅲ) using poorly-crystalline manganese dioxide[J].Chemosphere,2015,36:102-110.
    [9] 王华伟,李晓月,李卫华,等.pH和络合剂对五价锑在水钠锰矿和水铁矿表面吸附行为的影响[J].环境科学,2017,38(1):180-187.
    [10] 幸雪冰,王小雨,朱忠军,等.微波诱导催化氧化水钠锰矿降解亚甲基蓝[J].化工进展,2013,32(8):1955-1959.
    [11] GU W L,LYU G C,LIAO L B,et al.Fabrication of Fe-doped birnessite with tunable electron spin magnetic moments for the degradation of tetracycline under microwave irradiation[J].Journal of Hazardous Materials,2017,338:428-436.
    [12] LEFKOWITZ J P,ROUFF A A,ELZINGA E J.Influence of pH on the reductive transformation of birnessite by aqueous Mn(Ⅱ)[J].Environ Sci Technol,2013,47(18):10364-10371.
    [13] BEVARA S,GIRI P,ACHARY S N,et al.Synthetic Na/K-birnessite for efficient management of Sr(Ⅱ) from nuclear waste[J].Journal of Environmental Chemical Engineering,2018,6(6):7200-7213.
    [14] PANG J B,FU F L,DING Z C,et al.Adsorption behaviors of methylene blue from aqueous solution on mesoporous birnessite[J].Journal of the Taiwan Institute of Chemical Engineers,2017,77:168-176.
    [15] 彭波,陈若愚,程晓迪,等.纳米酸性水钠锰矿去除亚甲基蓝的研究[J].环境工程,2015,33(2):48-52.
    [16] YANG X,LIU L H,TAN W F,et al.High-performance Cu2+ adsorption of birnessite using electrochemically controlled redox reactions[J].Journal of Hazardous Materials,2018,354:107-115.