Maryam Rasouli

4 Questions 5 Answers 0 Followers

Questions related from Maryam Rasouli

Does any one know why in an LDH with M-N-X chemical formula, the M2+ and N3+ ions dissolve differently in aging condition? L/S and pH effect?

during aging of my LDH material, Ca and Al ions dissolve with different proportions in aging process. At pH 8, L/S 20 Ca dissolves more than Al. However, at pH 12, L/S 20 Al dissolved more....

18 January 2019 251 5 View

How do you prevent hydroxides formation during layered double hydroxide (LDH) preparation with co-precipitation process?

I am preparing LDH with co-precipitation method using aluminium chloride and calcium chloride. Upon addition of NaOH to AlCl3.6H2O and CaCl2.6H2O, not only LDH but also Al(OH)3 is formed. How...

27 February 2015 1,914 8 View

What is the typical layered double hydroxide (LDH) dissolution during oxyanion adsorption test?

LDH is used for oxyanion removal from water. But, it dissolves to an extent in water during adsorption of oxyanion. To avoid it, aging of LDH is suggested by many researchers. I am interested to...

20 January 2015 2,681 3 View

As you konw, aging of layered double hydroxide (LDH) is required for crystallinity enhancement. What are experimental conditions for the aging step?

After co-precipitation step for LDH preparation, there is a step called "aging" to increase crystallinity of LDH materials. What is the best condition for aging (e.g., rpm, temperature).

19 December 2014 2,096 4 View