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合准二级动力学模型;将吸附PCP后的NH2-nFe3O4加入Fe3+-H2O2体系,采用类Fenton反应可以实现PCP在可见光下原位降解.在pH值为3.08.0,5 min内对固载量为6.25120.0mg/g的PCP实现近100%降解,较普通Fenton反应体系有更宽的pH适用范围.且NH2-nFe3O4可循环使用,是具有优异潜力的水中PCP绿色吸附与降解材料.关键词:氨基功能化纳米Fe3O4;磁性复合材料;五氯酚;吸附;降解;类Fenton反应;......
Reaction mechanism in high Nb containing TiAl alloy by elemental powder metallurgy WANG Yan-hang(王衍行)1, LIN Jun-pin(林均品)1, HE Yue-hui(贺跃辉)2, WANG Yan-li(王艳丽)1, LIN Zhi(林 志)1, CHEN Guo-liang(陈国良)1... University, Changsha 410083, China Received 15 September 2005; accepted 5 March 2006 Abstract: High Nb containing TiAl alloy was fabricated in argon atmosphere by reactive hot pressing process. Reaction......
均相类Fenton催化剂,在固定床实验平台上进行快速氧化脱除NO实验研究.通过X射线荧光光谱分析仪(XRF),X射线衍射仪(XRD),扫描电子显微镜(SEM),傅氏转换红外线光谱分析仪(FTIR)等表征方法考察碱磁改性过程对于底渣灰的化学成分,晶体结构,微观形貌及表面官能团的影响.实验研究了反应温度,H2O2溶液质量分数,NO体积分数以及是否通入SO2等反应条件对于NO脱除效率的影响,并通过电子顺磁共振技术(ESR)分析了非均相类Fenton体系脱除NO的机理.结果表明:在最佳反应条件(温度为80℃,H2O2为6%,NO为500×10-6,未通入SO2)下NO的脱除效率达到了86%;碱磁改性后电厂锅炉底渣中铁含量明显提升有利于催化反应的进行;晶体的种类没有发生变化但FeOX的强度升高石英的强度降低利于催化反应;底渣的表面变得更加粗糙多孔,内部FeOX明显暴露出来,增加了与H2O2的接触面积......
of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China)Abstract:the synthesis and transport properties of the Li6La3BiSnO12 solid electrolyte by a solid-state reaction...; solid-state reaction......
on reaction path of Hg(Ⅱ) with S(Ⅱ) in solution CHAI Li-yuan(柴立元), WANG Qing-wei(王庆伟), WANG Yun-yan(王云燕), LI Qing-zhu(李青竹), YANG Zhi-hui(杨志辉), SHU Yu-de(舒余德) School of Metallurgical Science... and determine the reaction paths of Hg(Ⅱ) reacting with S(Ⅱ) in the solution, the concerned thermodynamics was studied. Species of S(Ⅱ)-H2O system and Hg(Ⅱ)-H2O system at different pH values were......
Soret and Dufour effects in strongly endothermic chemical reaction system of porous media LI Ming-chun(李明春)1, 2, TIAN Yan-wen(田彦文)1, ZHAI Yu-chun(翟玉春)1 1. School of Materials and Metallurgy... 2006 Abstract: Taking account of the thermal-diffusion (Soret) and the diffusion-themo (Dufour) effects, the properties of the heat and mass transfers in a strongly endothermic chemical reaction system......
Reaction procedure of a graphite fiber reinforced Ti-Al composite produced by squeeze casting-in situ reactionWU Gaohuia, LIU Yanmeia, XIU Ziyangb, JIANG Longtaoa, and YANG Wenshua a School... id="ChDivSummary" name="ChDivSummary">The in situ reaction procedure and microstructure evolution of a graphite fiber reinforced Ti-Al composite (Grf/Ti-Al) was investigated, and the stability of TiAl3......
Investigation on Reaction Interface between the Aluminum and K2ZrF6 by Freezing the Molten Salt ReactionQing-Feng Zhu1,2,Fei Li1,2,Lei Li1,2,Wen-Jing Wang1,2,Gao-Song Wang1,2,Jian-Zhong Cui1,21. Key..." name="ChDivSummary">A reaction interface between the aluminum and K2ZrF6 during molten salt reaction process was frozen by quenching the mold in water, and the interface structure was analyzed......
J. Cent. South Univ. Technol. (2009) 16: 0725-0729 DOI: 10.1007/s11771-009-0120-5 Preparation of β-Sialon/ZrN bonded corundum composites from zircon by nitridation reaction sintering process MA... using fused white corundum, alumina micro powder, zircon and carbon black by nitridation reaction sintering process. Phase composition and microstructure of the synthesized composites were......
J. Cent. South Univ. (2019) 26: 1362-1373 DOI: https://doi.org/10.1007/s11771-019-4092-9 Magneto-hydrodynamic flow of squeezed fluid with binary chemical reaction and activation energy S. AHMAD, M.... The processes of heat and mass transport incorporate the temperature-dependent binary chemical reaction with modified Arrhenius theory of activation energy function which is not yet disclosed for squeezing flow......
