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运用原位衰减全反射红外光谱法研究铬磁铁矿对磷酸根的吸附作用
An in Situ ATR-FTIR Study on Adsorption of Phosphate by Chromate Doped Magnetite

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林枭举 1   梁晓亮 2   初本莉 3 *   何宏平 2   朱建喜 2   朱润良 2  
文摘 采用原位衰减全反射红外光谱技术(ATR-FTIR)探讨pH值和磷酸根浓度对磷酸根在磁铁矿表面吸附形态的影响。结果表明:随着pH值降低,磷酸根浓度增大,磷酸根在磁铁矿表面的吸附量随之增加,形成内层吸附。发现有3种吸附模型:①在低pH值时,主要形成对称性为C_1的吸附形态,可能主要是单质子化双齿双核络合形态;②在高pH值条件下发现有2种形态,高磷酸根浓度条件下,形成1种对称性为C_(3v)吸附形态,主要是单齿单核络合形态,在低浓度条件下,发现1种C_(2v)对称性吸附形态,可能是去质子化双齿双核络合形态,与单齿单核络合形态的物种在低浓度条件下共同存在。
其他语种文摘 Phosphate adsorption on Cr-doped magnetite was characterized as the function of pH and phosphate concentration by in situ ATR-FTIR spectroscopy. The aim of this study is to investigate adsorption morphology of phosphate the variation medium condition. Results indicate that three inner-sphere complexes formed. At lower pH,monoprotonated bidentate-binuclear complex is dominated, while the monodentate mononuclear species are predomionated at higher pH and the nonprotonated and bidentate binonuclear species are also existing at higher and lower loadings.
来源 矿物学报 ,2017,37(1/2):188-195 【核心库】
DOI 10.16461/j.cnki.1000-4734.2017.01.023
关键词 磁铁矿 ; 吸附 ; 磷酸根 ; 衰减全反射红外光谱
地址

1. 华南师范大学物理与电信工程学院, 中国科学院矿物学与成矿学重点实验室;;广东省矿物物理与材料开发研究重点实验室, 广东, 广州, 510006  

2. 中国科学院广州地球化学研究所, 中国科学院矿物学与成矿学重点实验室;;广东省矿物物理与材料开发研究重点实验室, 广东, 广州, 510640  

3. 华南师范大学物理与电信工程学院, 广东, 广州, 510006

语种 中文
文献类型 研究性论文
ISSN 1000-4734
学科 地质学;环境污染及其防治
基金 国家自然科学基金项目
文献收藏号 CSCD:5986921

参考文献 共 25 共2页

1.  Williams A G B. Spectroscopic evidence for Fe (Ⅱ) - Fe (Ⅲ) electron transfer at the iron oxide-water interface. Environmental Science & Technology,2004,38(18):4782-4790 被引 17    
2.  Liang X L. The remarkable effect of vanadium doping on the adsorption and catalytic activity of magnetite in the decolorization of methylene blue. Applied Catalysis B: Environmental,2010,97(1/2):151-159 被引 8    
3.  Liang X L. The effect of transition metal substitution on the catalytic activity of magnetite in heterogeneous Fenton reaction: In interfacial view. Colloids and Surfaces A: Physicochemical and Engineering Aspects,2013,435:28-35 被引 5    
4.  Yang S J. Decolorization of methylene blue by heterogeneous Fenton reaction using Fe_(3-x)Ti_xO_4(0≤ x≤0.78) at neutral pH values. Applied Catalysis B: Environmental,2009,89(3/4):527-535 被引 15    
5.  Liang X L. The application of chromium substituted magnetite as heterogeneous Fenton catalyst for the degradation of aqueous cationic and anionic dyes. Chemical Engineering Journal,2012,191:177-184 被引 9    
6.  Kendelewicz T. X-ray absorption and photoemission study of the adsorption of aqueous Cr(VI)on single crystal hematite and magnetite surfaces. Surface Science,1999,424(2/3):219-231 被引 1    
7.  Paulino A T. Effect of magnetite on the adsorption behavior of Pb(Ⅱ), Cd(Ⅱ),and Cu(Ⅱ)in chitosan-based hydrogels. Desalination,2011,275(1/3):187-196 被引 10    
8.  Wu R C. Removal of azo dye from water by magnetite adsorption-Fenton oxidation. Water Environment Research,2004,76(7):2637-2642 被引 2    
9.  Sagert N H. The adsorption of uranium(VI) onto a magnetite sol. Journal of Colloid and Interface Science,1989,130(1):283-287 被引 1    
10.  Missana T. Selenite retention by nanocrystalline magnetite: Role of adsorption, reduction and dissolution/co-precipitation processes. Geochimica et Cosmochimica Acta,2009,73(20):6205-6217 被引 6    
11.  Stephen Inbaraj B. Dye adsorption characteristics of magnetite nanoparticles coated with a biopolymer poly (γ-glutamic acid). Bioresource Technology,2011,102(19):8868-8876 被引 3    
12.  Zhang D. Strong adsorption of chlorotetracycline on magnetite nanoparticles. Journal of Hazardous Materials,2011,192(3):1088-1093 被引 14    
13.  Vieira A P. Adsorption of cysteine on hematite, magnetite and ferrihydrite: FT-IR, Mossbauer,EPR spectroscopy and X-ray diffractometry studies. Amino Acids,2011,40(1):205-214 被引 2    
14.  Xue X F. Adsorption and oxidation of PCP on the surface of magnetite: Kinetic experiments and spectroscopic investigations. Applied Catalysis B: Environmental,2009,89(3/4):432-440 被引 18    
15.  Scott T B. Reduction of U(VI) to U(IV) on the surface of magnetite. Geochimica et Cosmochimica Acta,2005,69(24):5639-5646 被引 7    
16.  Conley D J. Controlling eutrophication: Nitrogen and phosphorus. Science,2009,323(5917):1014-1015 被引 314    
17.  吴萍萍. 离子强度和磷酸盐对铁铝矿物及土壤吸附As(V)的影响. 农业环境科学学报,2012,31(3):498-503 被引 17    
18.  Li Z W. Influence of different phosphates on adsorption and leaching of Cu and Zn in red soil. Transactions of Nonferrous Metals Society of China,2016,26(2):536-543 被引 3    
19.  Lefevre G. In situ Fourier-transform infrared spectroscopy studies of inorganic ions adsorption on metal oxides and hydroxides. Advances in Colloid and Interface Science,2004,107(2/3):109-123 被引 15    
20.  翁诗甫. 傅里叶变换红外光谱分析. (第2版),2010:1-389 被引 2    
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