天然钒钛磁铁矿非均相Fenton法降解酸性橙Ⅱ的研究
The Degradation of Acid Orange II Throuth Non-Homogeneous Fenton Process by Using Natural Vanadium-Titanium Magnetite
查看参考文献24篇
|
文摘
|
用XRD、FTIR及TG-DSC等手段对磁选后的天然钒钛磁铁矿进行结构表征, 然后在酸性条件下, 探讨天然钒钛磁铁矿非均相Fenton法催化降解酸性橙Ⅱ的性能. 结果表明: 磁选后的天然磁铁矿主要以钛磁铁矿为主, 同时含有少量的钛铁矿和绿泥石. 降解实验结果表明, 天然钒钛磁铁矿催化降解酸性橙Ⅱ的能力明显强于人工合成的单相磁铁矿, 并随着钛磁铁矿含量的增加而增强. 降解过程以异相Fenton反应为主, 动力学曲线符合准一级方程. 反应开始210 min后, 天然钒钛磁铁矿对酸性橙Ⅱ的矿化率约为30%. 在降解过程中, 苯环和萘环逐步断裂 |
|
其他语种文摘
|
The natural magnetites after magnetic separation were characterized with XRD, polarizing microscope, FTIR and TG-DSC The catalytic activity of natural vanadium-titanium magnetite in the degradation of acid orange II throuth non-homogeneous Fenton reaction was also studied in the acid condition The results showed that the natural samples mainly contained titanomagnetite, with a small amount of ilmenite and chlorite The degradation experiment revealed that the catalytic activity of natural vanadium-titanium magnetite in the degradation of acid orange II was stronger than that of synthesized non-doped magnetite (Fe_3O_4) The improvement of the catalytic efficiency of the natural samples strongly depended on the content of titanomagnetite The present study showed that the degradation process was dominated by heterogeneous Fenton reaction, complying with pseudo-first-order rate law 210 min after the reaction starting, percentage of the mineralization of Acid Orange II was about 30% The phenyl and naphthyl in Acid Orange II were gradually broken during the degradation process |
|
来源
|
矿物学报
,2010,30(1):40-48 【核心库】
|
|
关键词
|
天然钒钛磁铁矿
;
非均相Fenton反应
;
降解
;
酸性橙Ⅱ
|
|
地址
|
中国科学院 广州地球化学研究所, 广东, 广州, 510640
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1000-4734 |
|
学科
|
地质学;行业污染、废物处理与综合利用 |
|
基金
|
国家自然科学基金
;
国家863计划
;
广东省自然科学基金
|
|
文献收藏号
|
CSCD:3929672
|
参考文献 共
24
共2页
|
|
1.
Andreozzi R. Use of an amorphous iron oxide hydrated as catalyst for hydrogen peroxide oxidation of ferulic acid in water.
J Hazard Mater,2008,152(2):870-875
|
被引
4
次
|
|
|
|
|
2.
Barreiro J C. Oxidative decomposition of atrazine by a Fenton-like reaction in a H_2O_2/ferrihydrite system.
Water Res,2007,41(1):55-62
|
被引
17
次
|
|
|
|
|
3.
Huang H H. Catalytic decomposition of hydrogen peroxide and 2-chlorophenol with iron oxides.
Water Res,2001,35(9):2291-2299
|
被引
17
次
|
|
|
|
|
4.
吴大清. 氧化铁矿物催化分解苯酚的动力学速率及其产物特征.
矿物岩石地球化学通报,2006,25(4):293-298
|
被引
7
次
|
|
|
|
|
5.
Feng J Y. Discoloration and mineralization of orange II using different heterogeneous catalysts containing Fe: A comparative study.
Environ Sci Technol,2004,38(21):5773-5778
|
被引
18
次
|
|
|
|
|
6.
Matta R. Fenton-like oxidation of 2, 4, 6-trinitrotoluene using different iron minerals.
Sci Total Environ,2007,385(1/3):242-251
|
被引
29
次
|
|
|
|
|
7.
Kwan W P. Rates of hydroxyl radical generation and organic compound oxidation in mineral-catalyzed Fenton-like systems.
Environ Sci Technol,2003,37(6):1150-1158
|
被引
55
次
|
|
|
|
|
8.
Costa R C C. Novel active heterogeneous Fenton system based on Fe_(3-x)M_xO_4 (Fe, Co, Mn, Ni): The role of M~(2+) species on the reactivity towards H_2O_2 reactions.
J Hazard Mater,2006,129(1/3):171-178
|
被引
34
次
|
|
|
|
|
9.
Magalhaes F. A Cr-containing magnetites Fe_(3-x)Cr_xO_4: The role of Cr~(3+) and Fe~(2+) on the stability and reactivity towards H_2O_2 reactions.
Appl Catal Agen,2007,332(1):1115-123
|
被引
1
次
|
|
|
|
|
10.
Costa R C C. Remarkable effect of Co and Mn on the activity of Fe_(3-x)M_xO_4 promoted oxidation of organic contaminants in aqueous medium with H_2O_2.
Catal Commun,2003,4(10):525-529
|
被引
15
次
|
|
|
|
|
11.
肖六均. 攀枝钒钛磁铁矿资源及矿物磁性特征.
金属矿山,2001(1):28-30
|
被引
5
次
|
|
|
|
|
12.
杨士建. 钛磁铁矿的制备及其异相Fenton反应催化性能.
地球化学,2009,38(2):159-164
|
被引
2
次
|
|
|
|
|
13.
Chen J X. Catalytic degradation of Orange II by UV-Fenton with hydroxyl-Fe-pillared bentonite in water.
Chemosphere,2006,65(7):1249-1255
|
被引
20
次
|
|
|
|
|
14.
Andreozzi R. Oxidation of aromatic substrates in water/goethite slurry by means of hydrogen peroxide.
Water Res,2002,36(19):4691-4698
|
被引
12
次
|
|
|
|
|
15.
Sheha R R. Equilibrium isotherm modeling of cesium adsorption onto magnetic materials.
J Hazard Mater,2007,143(1/2):354-361
|
被引
15
次
|
|
|
|
|
16.
Nohair M. Infrared spectra-structure correlation study of vanadium-iron spinels and of their oxidation-products.
Vib Spectrosc,1996,9(2):181-190
|
被引
1
次
|
|
|
|
|
17.
Nivoix V. Mechanical activation conditions of the Fe_2O_3 and V_2O_3 mixture powders in order to obtain a nanometric vanadium spinel ferrite.
Powder Technol,1999,105(1/3):155-161
|
被引
3
次
|
|
|
|
|
18.
彭文世.
矿物红外光谱图集,1982:99,107,403
|
被引
3
次
|
|
|
|
|
19.
Gillot B. New cation-deficient vanadium-iron spinels with a high v acancy content.
Materials Research Bulletin, Mater Res Bull,1999,34(10/11):1735-1747
|
被引
1
次
|
|
|
|
|
20.
陈国玺.
矿物热分析粉晶分析相变图谱手册,1989:152,471-474
|
被引
1
次
|
|
|
|
|
了解气象卫星更多信息，请访问