Simultaneous adsorption of Cd(ii) and phosphate on Al13 pillared montmorillonite

RSC Advances ◽  
2015 ◽  
Vol 5 (94) ◽  
pp. 77227-77234 ◽  
Author(s):  
Lingya Ma ◽  
Jianxi Zhu ◽  
Yunfei Xi ◽  
Runliang Zhu ◽  
Hongping He ◽  
...  

Al13 pillared montmorillonites (AlPMts) prepared with different Al/clay ratios were used to remove Cd(ii) and phosphate from aqueous solution.


Author(s):  
H. Mori ◽  
Y. Murata ◽  
H. Yoneyama ◽  
H. Fujita

Recently, a new sort of nano-composites has been prepared by incorporating such fine particles as metal oxide microcrystallites and organic polymers into the interlayer space of montmorillonite. Owing to their extremely large specific surface area, the nano-composites are finding wide application[1∼3]. However, the topographic features of the microstructures have not been elucidated as yet In the present work, the microstructures of iron oxide-pillared montmorillonite have been investigated by high-resolution transmission electron microscopy.Iron oxide-pillared montmorillonite was prepared through the procedure essentially the same as that reported by Yamanaka et al. Firstly, 0.125 M aqueous solution of trinuclear acetato-hydroxo iron(III) nitrate, [Fe3(OCOCH3)7 OH.2H2O]NO3, was prepared and then the solution was mixed with an aqueous suspension of 1 wt% clay by continuously stirring at 308 K. The final volume ratio of the latter aqueous solution to the former was 0.4. The clay used was sodium montmorillonite (Kunimine Industrial Co.), having a cation exchange capacity of 100 mequiv/100g. The montmorillonite in the mixed suspension was then centrifuged, followed by washing with deionized water. The washed samples were spread on glass plates, air dried, and then annealed at 673 K for 72 ks in air. The resultant film products were approximately 20 μm in thickness and brown in color.



RSC Advances ◽  
2014 ◽  
Vol 4 (75) ◽  
pp. 39732-39742 ◽  
Author(s):  
Ajay Devidas Hiwarkar ◽  
Vimal Chandra Srivastava ◽  
Indra Deo Mall

Granular activated carbon used for simultaneous adsorption of pyrrole and indole from aqueous solution.



2019 ◽  
Vol 282 ◽  
pp. 179-187 ◽  
Author(s):  
Shi-Wen Lv ◽  
Jing-Min Liu ◽  
Hui Ma ◽  
Zhi-Hao Wang ◽  
Chun-Yang Li ◽  
...  




2012 ◽  
Vol 557-559 ◽  
pp. 1629-1632
Author(s):  
Xing Shun Cong ◽  
Min Li

A set of pillared montmorillonite (PILM) catalysts were prepared by exchanging Na+ with iron pillars, chromium pillars, complexes pillars of iron and chromium with different proportion, as well as complexes pillar of silica sol and iron and chromium, respectively. X-ray diffraction (XRD), X-ray fluorescence (XRF), thermogravimetry (TG) and differential thermal analysis (DTA) were used to characterize the catalysts. The XRD results reveal that Fe-Cr complexes pillared montmorillonites (Fe/Cr-PILM) have the basal spacing of about 2.04 nm after calcination at 300 °C for 2 h, while sole metal PILM have that of about 1.0 nm; in particular, the basal spacing of silica sol complexes pillared montmorillonite (Fe-Cr-Si-PILM) are expanded up to 4.33 nm. The TG-DTA results show that both Fe-Cr-PILM and Fe-Cr-Si-PILM have high thermal stability up to 640 °C. Catalytic activity of Fe/Cr-Si-PILM in Longkou lignite (LL) and ShengLi coal residue (SCR) liquefaction was studied, which showed that PILM had a good catalytic performance in coal conversion field.



RSC Advances ◽  
2021 ◽  
Vol 11 (31) ◽  
pp. 18881-18897
Author(s):  
P. T. Tho ◽  
Huu Tap Van ◽  
Lan Huong Nguyen ◽  
Trung Kien Hoang ◽  
Thi Ngoc Ha Tran ◽  
...  

This study presents the modification of cassava root husk-derived biochar (CRHB) with ZnO nanoparticles (ZnO-NPs) for the simultaneous adsorption of As(iii), Cd(ii), Pb(ii) and Cr(vi).



2021 ◽  
pp. 118227
Author(s):  
Yu Zhang ◽  
Liang Zhang ◽  
Ruohui Gao ◽  
Lvling Zhong ◽  
Juanqin Xue


2019 ◽  
Vol 292 ◽  
pp. 111408 ◽  
Author(s):  
Mingming Yu ◽  
Manglai Gao ◽  
Tao Shen ◽  
Hao Zeng


2018 ◽  
Vol 66 (5) ◽  
pp. 466-473
Author(s):  
Jingyi Liu ◽  
Rui Chen ◽  
Yuru Li ◽  
Jiajia Chen ◽  
Lihui Chen ◽  
...  




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