Comparative study of Pb(II) adsorption onto MIL–101 and Fe–MIL–101 from aqueous solutions

Graphene Oxide Adsorption Enhanced by Attapulgite to Remove Pb (II) from Aqueous Solution

“…When the pH was increased to 6, a precipitation reaction was initiated, thus maintaining the removal efficiency at approximately 99%. In fact, the main states of lead in aqueous solution include Pb 2+ , Pb(OH) + , Pb(OH) 2 , Pb(OH) 3 − , and Pb(OH) 4 2− [37]. When pH < 6, Pb 2+ is the primary form.…”

“…Long-term consumption of lead-ion-containing drinking water can induce serious diseases, such as anemia, reproductive diseases, genotoxicity, and nervous system effects. In particular, children bear the greatest risk of lead-induced toxicity [3]. These concerns have caused increasingly more scientists to investigate simple yet highly effective treatment methods for lead-containing wastewater [4].…”

“…These concerns have caused increasingly more scientists to investigate simple yet highly effective treatment methods for lead-containing wastewater [4]. Methods that have been used to date in the removal of lead ions from wastewater include chemical precipitation [5], coprecipitation [6], cloud-point extraction [7], electrochemical reduction [8], flocculation [9], ion exchange [10], membrane filtration [11,12], and adsorption [2][3][4][13][14][15][16]. Among these methods, adsorption offers the advantages of simple operation, high efficiency, and economic feasibility, and environmental friendliness [17].…”

Optimization of the adsorption and removal of Sb(iii) by MIL-53(Fe)/GO using response surface methodology

“…The sample has H4 curve type IV, which is the main feature of mesoporous materials. 33 As shown, the pore size is narrowly distributed between 1.72 nm and 2.34 nm, indicating that MIL-53(Fe)/GO has a highly uniform pore structure. 34 …”

Nanofused Hierarchically Porous MIL-101(Cr) for Enhanced Methyl Orange Removal and Improved Catalytic Activity

“…Due to the high thermal/chemical stability of MIL-101(Cr), it is not easy to prepare hierarchically porous MIL-101(Cr) (H-MIL-101(Cr)). In the previous report, MIL-101(Cr) is often combined with other materials to fabricate hierarchically porous structure as composites [ 31 , 32 , 33 , 34 ]. On the contrary, pure H-MIL-101(Cr) is still rarely reported.…”