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2,4,6-三氯酚的UV/H2O2光化学降解 高乃云1,祝淑敏1,马艳1,戎文磊2,周圣东2,陆纳新2 (1. 同济大学 污染控制与资源化研究国家重点实验室,上海,200092； 2. 无锡自来水公司,江苏 无锡,214031 ) 摘要:采用UV/H2O2工艺降解水中2,4,6-三氯酚(2,4,6-TCP),研究H2O2投加量,pH,阴离子,阳离子,叔丁醇和腐殖酸对降解效果的影响,并利用LC..., Shanghai 200092, China; 2. Wuxi Water Supply General Company, Wuxi 214031, China) Abstract: The degradation of 2,4,6-trichlorophenol (2,4,6-TCP) by UV/H2O2 in aqueous solutions was investigated......
2?4 times compared with those of coarse grain materials. The strengthening can be attributed to the ultrafine grains, dislocation and texture developed during ARB process, as well as the dispersed...]. Scripta Materialia, 2004, 51(11): 1093?1097. [2] Tsuji N, Saito Y, Lee S H, Minamino Y. ARB (Accumulative roll-bonding) and other new techniques to produce bulk ultrafine grained materials[J]. Advanced......
STUDY ON PREPARATION OF CERAMIC MATRIX COMPOSITE OF WC-Co ULTRAFINE POWDERS曹立宏,时东霞,欧阳世翕,关波摘 要:<正>The W-Co compound precursor powderswith an average particle size of 60 nm were prepared by thechemical coprecipitation as the raw materials of Na2WO4 andCoCl2 and as the reagents of HCl and NH3·H2O. After re-ducing and carburizing the precursor powders......
). Spherical ultrafine cuprous oxide (Cu2O) powder was prepared by glucose reduction of Cu(OH)2. The Cu2O particles were coated by Mg(OH)2 and reduced to metallic copper particles. At last, the copper...Preparation of spherical ultrafine copper powder via hydrogen reduction-densification of Mg(OH)2-coated Cu2O powderYue-jun Wang and Kang-gen Zhou School of Metallurgical Science and Engineering......
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,在反应瓶中装入所需质量浓度的2,4,6-TCP溶液,通过磁力搅拌器混合均匀.反应中臭氧尾气由质量分数为2%的碘化钾溶液吸收.臭氧质量浓度测定采用碘量法[9].在2个吸收瓶中均通入质量分数为20% KI,通入O3 40 min后所得臭氧量与时间的比值即为臭氧发生量.反应瓶中每隔一定时间取样,滴加过量亚硫酸钠(质量分数为10%)终止氧化,后待测定. 图1 试验工艺流程 Fig.1 Schematic flow of experiment system 1.2 试验药剂 药剂为:2,4,6-TCP(Sigma公司生产,纯度＞98%)储备液,质量浓度为100 mg/L,用去离子水配制,使用时根据需要进行稀释；流动相甲醇,冰醋酸,为色谱级(Sigma公司生产)；pH使用H2SO4和 NaOH溶液调节.试验期间水温为(12±2) ℃.调节离子浓度所用......
Microstructure and Mechanical Properties of Ultrafine Grained Mg15Al Alloy Processed by Equal-channel Angular Pressing王红霞1,2,梁伟1,21. College of Materials Science and Engineering, Taiyuan University of Technology2. Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology摘 要: Microstructures of mechanically activated Ti-46at.%Al powders and spark plasma sintered ultrafine TiAl alloyXIA Li1), DING Hui1), Ruan Xuefong1), and REN Yaoyao2) 1) College of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China 2) School of Physicals, Wuhan University, Wuhan, 430072, China摘 要:Powder of Ti-46at.%Al was synthesized......Microstructures of mechanically activated Ti-46at.%Al powders and spark plasma sintered ultrafine TiAl alloy
来源： 《Rare Metals2007年第6期》——XIA Li), DING Hui), Ruan Xuefong), and REN Yaoyao) ) College of Power and Mechanical Engineering, Wuhan University, Wuhan , China ) School of Physicals, Wuhan University, Wuhan, , China
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