scholarly journals Ultrasonic-assisted reduction for facile synthesis of ultrafine supported Pd nanocatalysts by hydroxyl groups on the surfaces of layered double hydroxides and their catalytic properties

2020 ◽  
Vol 60 ◽  
pp. 104746 ◽  
Author(s):  
Jiazhe Li ◽  
Xuefeng Bai ◽  
Hongfei Lv
Author(s):  
Guifeng Liu ◽  
Zongqiang Zhu ◽  
Ningning Zhao ◽  
Yali Fang ◽  
Yingying Gao ◽  
...  

A novel adsorbent Mn-Fe layered double hydroxides intercalated with ethylenediaminete-traacetic (EDTA@MF-LDHs) was synthesized by a low saturation coprecipitation method. The behavior and mechanism of As(III) removed by EDTA@MF-LDHs were investigated in detail in comparison with the carbonate intercalated Mn-Fe layered double hydroxides (CO3@MF-LDHs). The results showed that EDTA@MF-LDHs had a higher removal efficiency for As(III) than As(V) with a broader pH range than CO3@MF-LDH. The large adsorption capacity of EDTA@MF-LDHs is related to its large interlayer spacing and the high affinity of its surface hydroxyl groups. The maximum adsorption capacity for As(III) is 66.76 mg/g at pH 7. The FT-IR and XPS characterization indicated that the removal mechanism of the As(III) on EDTA@MF-LDHs include surface complexation, redox, and ion exchange.


RSC Advances ◽  
2015 ◽  
Vol 5 (13) ◽  
pp. 9341-9347 ◽  
Author(s):  
Hongjuan Li ◽  
Jia Wen ◽  
Ruijin Yu ◽  
Jia Meng ◽  
Cong Wang ◽  
...  

A hybrid graphene–ZnAl-LDH nanocomposite has been developed and used as a portable shelf of Ru(phen)3Cl2sensor to selectively discriminate DNA.


2006 ◽  
Vol 179 (3) ◽  
pp. 812-823 ◽  
Author(s):  
František Kovanda ◽  
Tomáš Rojka ◽  
Jana Dobešová ◽  
Vladimír Machovič ◽  
Petr Bezdička ◽  
...  

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