Facile Synthesis of Silver Bromide-Based Nanomaterials and Their Efficient and Rapid Selective Adsorption Mechanisms Toward Anionic Dyes

2016 ◽  
Vol 4 (9) ◽  
pp. 4617-4625 ◽  
Author(s):  
Liang Tang ◽  
Jia-jun Wang ◽  
Liang Wang ◽  
Cheng-tao Jia ◽  
Geng-xin Lv ◽  
...  
2020 ◽  
Vol 49 (20) ◽  
pp. 6651-6660
Author(s):  
Ji-Min Yang ◽  
Wei Zhang ◽  
Run-Zhi Zhang ◽  
Meng-Xuan Tong

MIL-101-SO3H analogues functionalized with –SO3H groups exhibited superior CR, MO and AC adsorption capacities because of their distinct adsorption mechanisms.


2020 ◽  
Vol 241 ◽  
pp. 116369 ◽  
Author(s):  
Chuting Feng ◽  
Penggang Ren ◽  
Meixia Huo ◽  
Zhong Dai ◽  
Di Liang ◽  
...  

2021 ◽  
Vol 254 ◽  
pp. 117473
Author(s):  
Mei-Xia Huo ◽  
Yan-Ling Jin ◽  
Zhen-Feng Sun ◽  
Fang Ren ◽  
Lu Pei ◽  
...  

Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1437
Author(s):  
Chih Ming Ma ◽  
Bo-Yuan Yang ◽  
Gui-Bing Hong

Hydrogel beads based on the husk of agarwood fruit (HAF)/sodium alginate (SA), and based on the HAF/chitosan (CS) were developed for the removal of the dyes, crystal violet (CV) and reactive blue 4 (RB4), in aqueous solutions, respectively. The effects of the initial pH (2–10) of the dye solution, the adsorbent dosage (0.5–3.5 g/L), and contact time (0–540 min) were investigated in a batch system. The dynamic adsorption behavior of CV and RB4 can be represented well by the pseudo-second-order model and pseudo-first-order model, respectively. In addition, the adsorption isotherm data can be explained by the Langmuir isotherm model. Both hydrogel beads have acceptable adsorption selectivity and reusability for the study of selective adsorption and regeneration. Based on the effectiveness, selectivity, and reusability of these hydrogel beads, they can be treated as potential adsorbents for the removal of dyes in aqueous solutions.


2020 ◽  
Vol 720 ◽  
pp. 137449 ◽  
Author(s):  
Dujduan Sompornpailin ◽  
Chalita Ratanatawanate ◽  
Chanchai Sattayanon ◽  
Supawadee Namuangruk ◽  
Patiparn Punyapalakul

2018 ◽  
Vol 19 (9) ◽  
pp. 2797 ◽  
Author(s):  
Heleen Van Den Noortgate ◽  
Bert Lagrain ◽  
Tom Wenseleers ◽  
Johan Martens

The pharaoh ant is a notorious and hard to eradicate pest, which poses a threat in hospitals, spreading pathogens and contaminating sterile equipment. When applied on ants, zeolites adsorb part of their epicuticular wax layer. The ants are then vulnerable to desiccation, since this layer regulates water exchange. We analyzed the chemical composition of this wax layer using GC-MS (Gas Chromatography-Mass Spectrometry). A hexane wash of M. pharaonis foragers resulted in the identification of 53 components, four of which were not previously defined in Monomorium species. Selective adsorption of specific compounds on zeolites assisted in the identification of compounds which could not be separated on the GC column and allowed for the identification of three additional compounds. Zeolites show different affinities for the wax compounds depending on pore structure and chemical composition. Selective adsorption of alkanes on zeolites is also investigated in the fields of refinery processes and catalysis. Pore mouth and key lock adsorption mechanisms and selectivity according to molecular weight and branching, investigated in these fields, are also involved in adsorption processes of epicuticular waxes. The insecticidal activity of a zeolite is related to adsorption selectivity rather than capacity. One of the best adsorbing zeolites showed limited insecticidal activity and can be considered as a non-lethal alternative for epicuticular wax sampling.


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