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兼具光催化和类Fenton活性的Co-TiO2催化机理研究陈晴空1,吉芳英1,郭倩2,关伟1,晏鹏1,徐璇11. 重庆大学三峡库区生态环境教育部重点实验室2. 林同棪国际工程咨询(中国)有限公司摘 要:采用溶胶-凝胶法制备了Co-TiO2催化剂.研究了不同掺钴量和焙烧温度下,催化剂的可见光光催化和类Fenton活性,并通过XRD,UV-DRS和XPS对催化剂的结构进行表征,分析了催化机理.结果表明,Co2+掺杂使Co-TiO2同时获得了可见光光催化和类Fenton活性.当掺钴量为1.0%,500℃焙烧时,苯酚的光催化降解率达到52.3%,类Fenton降解率为65.3%.关键词:类Fenton;光催化;钴;二氧化钛;苯酚;......
J. Cent. South Univ. (2017) 24: 2266-2274 DOI: https://doi.org/10.1007/s11771-017-3637-z Extracting reaction mechanism analysis of Zn and Si from zinc oxide ore by NaOH roasting method CHEN Bing(陈兵... Central South University Press and Springer-Verlag GmbH Germany 2017 Abstract: The orthogonal test was used to optimize the reaction conditions of roasting zinc oxide ore with NaOH aiming......
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J. Cent. South Univ. (2018) 25: 1895-1903 DOI: https://doi.org/10.1007/s11771-018-3879-4 A new reaction system to determine nonlinear chemical fingerprint and its use in Panax ginseng identification method based on double reaction system TAN Xue-ying(谭雪莹), DENG Fei-yue(邓飞跃), ZHANG Tai-ming(张泰铭),HUANG Jian(黄坚), CHEN Chun-nan(陈春楠) School of Chemistry and Chemical Engineering, Central South......
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Synthesis and reaction behavior of calcium silicate hydrate in basic system LIU Gui-hua(刘桂华), HE Qiang(贺 强), LI Xiao-bin(李小斌), PENG Zhi-hong(彭志宏), ZHOU Qiu-sheng(周秋生) (School... of reaction time. The decomposition rate is all less than 1.2% in caustic solution, and XRD pattern of the residue after reaction with caustic solution is found as the same as that of original calcium silicate......
金属催化剂对Fenton试剂活性的影响因素分析周红星唐山学院土木工程系摘 要:在分析Fenton氧化法作用机理的基础上,研究了金属催化剂Fe2+/Fe3+对Fenton试剂活性的影响.结果表明:Fe2+和Fe3+对Fenton试剂活性均具有催化作用,Fe2+催化作用远大于Fe3+催化作用;在H2O2投加量为12 mmol/L,反应温度为25℃,反应时间为25 min条件下,[Fe2+]/[H2O2]的物质的量比为1∶10时,焦化含酚废水COD去除率最高达到90.2%(质量分数);在光照特别是紫外线协同作用下,Fe2+和Fe3+活性增大,且Fe3+的活性增强趋势明显高于Fe2+.关键词:金属催化剂;Fe2+/Fe3+;Fenton试剂;苯酚废水;......
Effect of porosity on hydrogenation kinetics of Mg-3Ni-2MnO2 nanocomposite powder reaction bed ZHANG Wen-cong(张文丛), SHI Fei(史 菲) School of Materials Science and Engineering, Harbin Institute... hydrogenation kinetics and temperature field of reaction bed with various porosities (0.37, 0.53 and 0.63) were measured. The results show that the accumulative hydrogenation kinetics of Mg-3Ni-2MnO2......