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Reaction mechanism and luminescence properties of orange-red SrAlSi4N7:Eu2+ phosphor for white-LEDs刘元红,周小芳,陈磊,庄卫东,刘荣辉,胡运生National Engineering Research Center for Rare Earth Materials,General Research...-state reaction method using different types of Si3N4 raw material.The corresponding reaction mechanism was studied by means of X-ray diffraction(XRD),scanning electron microscopy(SEM),energy-dispersive......
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orange; degradation; reaction mechanism 铁氧化物主要包括铁的氢氧化物和铁的氧化物,广泛存在于自然环境中[1].其中,α-FeOOH,γ-FeOOH等由于价廉易得,且具有较稳定的物理化学性质,受到研究者的广泛关注.以α-FeOOH,γ-FeOOH等为非均相Fenton反应催化剂,光催化剂氧化降解废水中的有害有机物,取得了较好的效果[2-3].马军等[4]以α..., the pH is 2.54, the removal of methyl orange with mass concentration of 9.41 mg/L reaches 97.3% after reacting for 30 min at 60 ℃.In the process of the reaction, the most important oxidant OH· is produced......
Extraction and Reaction Mechanism of Potassium from Associated Phosphorus and Potassium Ore李亮1,2,雷绍民1,LIU Yuanyuan1,LUO Huihua21. School of Resources and Environmental Engineering,Wuhan University.... The thermodynamic and chemical reaction mechanism was revealed that the primary reaction could be completed spontaneously in a temperature range of 298-433 K. The increase of reaction temperature had......
content of 85% (mass fraction). Based on the optimal experiment, the leaching reaction mechanism of Mg2SiO4 in high NaOH content system was investigated. Raman spectra were measured for the reactions... of Mg(OH)2 from the silicates. Key words: Mg2SiO4; NaOH solution; Raman spectrum; reaction mechanism 在当前全球经济快速发展和对金属镍需求持续上升的形势下,随着硫化镍矿资源和高品位红土镍矿资源的逐渐减少,大量品位在1%左右的红土镍矿的经济利用问题日益受到关注[1-4].因此,如何高效率,低成本地处理低品位红......
, 106(16): 4236-4239. [5] WANG X, YANG J H. Effect mechanism of BaO on coke solution reaction [J]. Coal Conversion, 2003, 26(3): 46-50. (in Chinese). [6] ZHENG X J, LI J Y, ZHOU Y C. X-ray... Effects of mineral loading methods on carbon solution reaction of coal-derived carbonmat erial YANG Jun-he(杨俊和)1, WANG Xia(王 霞)1, CHENG Shu-hui(陈树晖)2, LIU Xiao-rong(刘晓荣)1, FANG Yong-zheng(房永征)1......
precursor compounds are observed. Fig.2 XRD spectra of standard JCPDS 10-0173 (a) and Al2O3 nanoparticles (b) 3.3 Reaction mechanism in microemulsion system During the preparation of Al2O3.... More and more resultant molecules adhere on the nucleus to form a particle at last, and this is the last step. Fig. 3 Reaction mechanism in reverse microemulsion system (Step 1: Solublization......
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Preparation and Reaction Mechanism of Red Mud based Ceramic Simple Bricks吴建锋School of Materials Science and Technology,Wuhan University of Technology摘 要:reaction mechanism was also discussed.The......
J. Cent. South Univ. Technol. (2008) 15: 663-668 DOI: 10.1007/s11771-008-0123-7 Dispersion mechanism of nano-magnetite coated with oleate in aqueous carrier HU Yue-hua(胡岳华), LIU Jian-ping(刘建平...; Abstract: To investigate dispersion mechanism of water-based ferrofluid......