| 甘氨酸在锐钛矿上的吸附及热缩合反应 |
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| 引用本文： | 钟小梅,刘明学,刘宇琪,魏红福,张伟,聂小琴,董发勤.甘氨酸在锐钛矿上的吸附及热缩合反应[J].岩石矿物学杂志,2018,37(3):505-511. |
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| 作者姓名： | 钟小梅 刘明学 刘宇琪 魏红福 张伟 聂小琴 董发勤 |
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| 作者单位： | 西南科技大学生命科学与工程学院;固体废物处理与资源化教育部重点实验室;核废物与环境安全国防重点学科实验室 |
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| 基金项目： | 国家重点基础研究发展计划项目"973"计划（2014CB846003）;国家自然科学基金资助项目（41272371,41502316） |
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| 摘 要： | 本文通过锐钛矿对不同pH值溶液中甘氨酸的吸附和中低温条件下锐钛矿表面甘氨酸的缩合研究,探讨半导体矿物吸附诱导氨基酸聚合的能力及其机理。结果表明:在pH=6.0时,甘氨酸在锐钛矿表面的吸附量达到最大值(约80.1 mg/g);且在弱酸条件下,甘氨酸通过羧基基团与锐钛矿表面相关原子或基团键合而吸附在其表面。在80~120℃范围内锐钛矿主要催化甘氨酸缩合形成DKP(环状二肽)、Gly_2(Gly-Gly)、Gly_3(Gly-Gly-Gly)等寡肽,催化缩合形成产物受温度的控制。锐钛矿表面为甘氨酸的吸附缩合提供了活性位点,在提供一定能量(加热)条件下,能催化甘氨酸缩合。
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| 关 键 词： | 甘氨酸 锐钛矿 吸附 热缩合 寡肽 |
| 收稿时间： | 2017/9/4 0:00:00 |
Adsorption and thermal polymerization of glycine on surface of anatase |
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| ZHONG Xiao-mei,LIU Ming-xue,LIU Yu-qi,WEI Hong-fu,ZHANG Wei,NIE Xiao-qin and DONG Fa-qin.Adsorption and thermal polymerization of glycine on surface of anatase[J].Acta Petrologica Et Mineralogica,2018,37(3):505-511. |
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| Authors: | ZHONG Xiao-mei LIU Ming-xue LIU Yu-qi WEI Hong-fu ZHANG Wei NIE Xiao-qin and DONG Fa-qin |
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| Institution: | Life Science and Engineering College, Southwest University of Science and Technology, Mianyang 621010, China,Life Science and Engineering College, Southwest University of Science and Technology, Mianyang 621010, China;Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education of China, Mianyang 621010, China,Life Science and Engineering College, Southwest University of Science and Technology, Mianyang 621010, China,Life Science and Engineering College, Southwest University of Science and Technology, Mianyang 621010, China,Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education of China, Mianyang 621010, China,Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Mianyang 621010, China and Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education of China, Mianyang 621010, China |
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| Abstract: | |
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| Keywords: | glycine anatase adsorption thermal polymerization oligopeptide |
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