PMID- 30217008
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20200930
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 11
IP  - 9
DP  - 2018 Sep 13
TI  - Crystalline/Amorphous Blend Identification from Cobalt Adsorption by Layered 
      Double Hydroxides.
LID - 10.3390/ma11091706 [doi]
LID - 1706
AB  - In this study, the adsorption behavior of CaAl-Cl layered double hydroxide 
      (CaAl-Cl-LDH) with a controlled pH value (pH = 6) on Co(II) ions ([Co] = 8 mM) is 
      investigated. The comprehensively accepted mechanism of cobalt adsorption on LDH 
      is considered to be co-precipitation, and the final adsorbed products are 
      normally crystalline Co-LDH. One unanticipated finding is that 
      crystalline/amorphous blends are found in the X-ray diffraction (XRD) pattern of 
      Co-adsorbed LDH. To shed light on the adsorption products and the mechanisms in 
      the adsorption process of Co(II) in an aqueous solution by CaAl-Cl-LDH, a series 
      of testing methods including Fourier-transform infrared spectroscopy (FT-IR), 
      Scanning electron microscope (SEM), High-resolution transmission electron 
      microscopy (HR-TEM), X-ray photoelectron spectroscopy (XPS), and inductively 
      coupled plasma (ICP) are applied to clarify the interaction between cobalt and 
      CaAl-Cl-LDH. According to the comprehensive analysis, the formation of the 
      crystalline/amorphous blends corresponds to two adsorption mechanisms. The 
      crystalline phases are identified as Co(6)Al(2)CO(3)(OH)(16).4H(2)O, which is attributed 
      to the co-precipitation process occurring in the interaction between Co(II) and 
      CaAl-Cl-LDH. The formation of the amorphous phases is due to surface complexation 
      on amorphous Al(OH)(3) hydrolyzed from CaAl-Cl-LDH.
FAU - Chi, Lin
AU  - Chi L
AUID- ORCID: 0000-0001-8700-0254
AD  - School of Civil Engineering, Harbin Institute of Technology, Harbin 150001, 
      China. chilin8958@163.com.
AD  - Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education, 
      Harbin Institute of Technology, Harbin 150090, China. chilin8958@163.com.
AD  - Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the 
      Ministry of Industry and Information Technology, Harbin Institute of Technology, 
      Harbin 150090, China. chilin8958@163.com.
FAU - Wang, Zheng
AU  - Wang Z
AD  - School of Civil Engineering, Harbin Institute of Technology, Harbin 150001, 
      China. wangz@163.com.
AD  - Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education, 
      Harbin Institute of Technology, Harbin 150090, China. wangz@163.com.
AD  - Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the 
      Ministry of Industry and Information Technology, Harbin Institute of Technology, 
      Harbin 150090, China. wangz@163.com.
FAU - Sun, Yuan
AU  - Sun Y
AD  - School of Civil Engineering, Harbin Institute of Technology, Harbin 150001, 
      China. qwertyburning@163.com.
AD  - Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education, 
      Harbin Institute of Technology, Harbin 150090, China. qwertyburning@163.com.
AD  - Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the 
      Ministry of Industry and Information Technology, Harbin Institute of Technology, 
      Harbin 150090, China. qwertyburning@163.com.
FAU - Lu, Shuang
AU  - Lu S
AD  - School of Civil Engineering, Harbin Institute of Technology, Harbin 150001, 
      China. hitlu@126.com.
AD  - Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education, 
      Harbin Institute of Technology, Harbin 150090, China. hitlu@126.com.
AD  - Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the 
      Ministry of Industry and Information Technology, Harbin Institute of Technology, 
      Harbin 150090, China. hitlu@126.com.
FAU - Yao, Yan
AU  - Yao Y
AD  - China Building Materials Academy, Beijing 100024, China. yy@cnbm.com.cn.
LA  - eng
PT  - Journal Article
DEP - 20180913
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC6164505
OTO - NOTNLM
OT  - CaAl-Cl-LDH
OT  - amorphous Al(OH)3
OT  - cobalt
COIS- The authors declare no conflict of interest. This article does not contain any 
      studies with human participants or animals performed by any of the authors.
EDAT- 2018/09/16 06:00
MHDA- 2018/09/16 06:01
PMCR- 2018/09/13
CRDT- 2018/09/16 06:00
PHST- 2018/08/16 00:00 [received]
PHST- 2018/09/04 00:00 [revised]
PHST- 2018/09/11 00:00 [accepted]
PHST- 2018/09/16 06:00 [entrez]
PHST- 2018/09/16 06:00 [pubmed]
PHST- 2018/09/16 06:01 [medline]
PHST- 2018/09/13 00:00 [pmc-release]
AID - ma11091706 [pii]
AID - materials-11-01706 [pii]
AID - 10.3390/ma11091706 [doi]
PST - epublish
SO  - Materials (Basel). 2018 Sep 13;11(9):1706. doi: 10.3390/ma11091706.