IOCAS-IR  > 海洋地质与环境重点实验室
Thermogravimetric and kinetic analysis of thermal decomposition characteristics of microbial calcites induced by cyanobacteria Synechocystis sp PCC6803
Han, Zuozhen1,2; Zhuang, Dingxiang1,2,3; Yan, Huaxiao1,3; Zhao, Hui1,3; Sun, Bin1,3; Li, Dan1,3; Sun, Yanwei3; Hu, Wenya3; Xuan, Qize3; Chen, Jiaoan3; Xiu, Yang3
2017-02-01
Source PublicationJOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
Volume127Issue:2Pages:1371-1379
SubtypeArticle
AbstractAlthough various complicated methods have always been made attempts, it is still well difficult to efficiently distinguish between the biogenic and abiogenic minerals in geological area up to now. In present study, the thermal decomposition unique characteristics of microbial calcites (MC), induced by cyanobacteria Synechocystis sp. PCC6803, were compared with those of chemical calcites (CC) prepared by the reaction of sodium carbonate (Na2CO3) with calcium chloride (CaCl2). Two samples were firstly analyzed by scanning electron microscope and X-ray diffraction, and were further investigated thermal decomposition behaviors using a thermogravimetric analyzer at different heating rates of 278.15, 283.15, 293.15, and 303.15 K min(-1) from 323.15 to 1273.15 K, respectively, then kinetic parameters were calculated via Popescu, Kissinger-Akahira-Sunose, and Flynn-Wall-Ozawa methods, and then the kinetics mechanism functions were deduced by Popescu method. The results showed that these two kinds of precipitates were actually both calcite crystals although the surface morphologies were quite different. Whereas thermal decomposition kinetics mechanism function of MC can be described as Avrami-Erofeev equation ([-ln(1 - alpha)](1/3)), while CC corresponded to Contracting sphere (volume) ([1 - (1 - alpha)](1/3)), the results also showed that the average activation energy of MC and CC was 217.9 and 170.5 kJ mol(-1), respectively; that is, MC has higher thermal stability, which should be originated from the inducing effects and the different precipitation conditions provided by Synechocystis sp. PCC6803. These above results provided useful information not only for efficiently distinguishing between the biogenic and abiogenic minerals in geological area, and also for better understanding the microbial mineralization.
KeywordThermal Decomposition Calcium Carbonate Microbial Calcite Tg-dtg-dsc Kinetics Synechocystis Sp Pcc6803
DOI10.1007/s10973-016-6026-1
Indexed BySCI
Language英语
WOS IDWOS:000394142200026
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/136784
Collection海洋地质与环境重点实验室
Affiliation1.Shandong Univ Sci & Technol, Coll Earth Sci & Engn, Shandong Prov Key Lab Deposit Mineralizat & Sedim, Qingdao 266590, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China
3.Shandong Univ Sci & Technol, Dept Bioengn, Coll Chem & Environm Engn, Bioresources Lab, Qingdao 266590, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Han, Zuozhen,Zhuang, Dingxiang,Yan, Huaxiao,et al. Thermogravimetric and kinetic analysis of thermal decomposition characteristics of microbial calcites induced by cyanobacteria Synechocystis sp PCC6803[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2017,127(2):1371-1379.
APA Han, Zuozhen.,Zhuang, Dingxiang.,Yan, Huaxiao.,Zhao, Hui.,Sun, Bin.,...&Xiu, Yang.(2017).Thermogravimetric and kinetic analysis of thermal decomposition characteristics of microbial calcites induced by cyanobacteria Synechocystis sp PCC6803.JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,127(2),1371-1379.
MLA Han, Zuozhen,et al."Thermogravimetric and kinetic analysis of thermal decomposition characteristics of microbial calcites induced by cyanobacteria Synechocystis sp PCC6803".JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 127.2(2017):1371-1379.
Files in This Item:
File Name/Size DocType Version Access License
Thermogravimetric an(1457KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Han, Zuozhen]'s Articles
[Zhuang, Dingxiang]'s Articles
[Yan, Huaxiao]'s Articles
Baidu academic
Similar articles in Baidu academic
[Han, Zuozhen]'s Articles
[Zhuang, Dingxiang]'s Articles
[Yan, Huaxiao]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Han, Zuozhen]'s Articles
[Zhuang, Dingxiang]'s Articles
[Yan, Huaxiao]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Thermogravimetric and kinetic analysis of thermal decomposition characteristics of microbial calcites induced by cyanobacteria Synechocystis sp PCC6803.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.