Periodic Mesoporous Organosilicas as adsorbents for the organic pollutants removal in aqueous phase

Ganiyu, Soliu O.; Bispo, Cláudia; Bion, Nicolas; Ferreira, Paula; Batonneau−Gener, Isabelle

doi:10.1016/j.micromeso.2014.07.047

Cited by 27 publications

(21 citation statements)

References 37 publications

(59 reference statements)

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“…Ganiyu et al [107] used a modified version of mesoporous silica prepared by cocondensation method-propylsulfonic acid-functionalized SBA-15 (SBA-15-SO 3 H)-in their adsorption experiments. The results indicated that pure SBA-15, which has no sulfonic acid groups, showed a lower capacity of adsorption toward mesosulfuron-methyl than the acid-functionalized SBA-15-SO 3 H. The adsorption efficiency of SBA-15-SO 3 H increased significantly when the initial concentration of mesosulfuron-methyl was increased.…”

Section: Other Groups Of Pesticidesmentioning

confidence: 99%

Removal of Pesticides from Waters by Adsorption: Comparison between Synthetic Zeolites and Mesoporous Silica Materials. A Review

Andrunik

Bajda

2021

Materials

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Pesticides are pollutants found in wastewater due to increasing agricultural activities over the years. Inappropriate dosing of pesticides results in the dispersal of active ingredients in the environment. The complete removal of pesticides from wastewater is an immediate concern due to their high toxicity and mobility. At present, adsorption is one of the most widely used methods for pesticide removal, in which synthetic zeolites and mesoporous silica materials are extensively applied. This article presents a systematic and comparative review of the applications and comparison of these adsorbents, based on the data reported in the literature. The paper summarizes the information collected from various studies, including the type of adsorbents and pesticides used, experimental conditions, and results of each work. The studies analyzed were laboratory-based and show potential advantages for the treatment of pesticide-bearing waters using functionalized and unfunctionalized synthetic zeolites and mesoporous silica materials. As a whole, functionalized materials are reported to exhibit better removal performance for different pesticides than conventional materials. It is expected that the results of this review will help researchers to establish a powerful strategy for the abatement of pesticides in wastewater.

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Section: Other Groups Of Pesticidesmentioning

confidence: 99%

Removal of Pesticides from Waters by Adsorption: Comparison between Synthetic Zeolites and Mesoporous Silica Materials. A Review

Andrunik

Bajda

2021

Materials

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“…To overcome these limitations, the literature reports different types of mesoporous solids for pollutants adsorption. In particular, ordered mesoporous silicas were studied due to their remarkable properties such as high specific surface area, large pore size, and high amount of surface functional groups that can be exploited for their excellent selectivity toward specific pollutants [ 12 , 13 ]. Mobil Composition of matter (MCM)-41, a mesoporous silica with high surface area (higher than 1000 m 2 /g) and large pore volume with highly ordered hexagonally packed cylindrical pores, was compared to selected hydrophobic zeolites such as silicalite-1 and zeolite Y silica as sorbents of some volatile organic compounds (VOCs) in the gas phase (i.e., benzene, carbon tetrachloride, and n-hexane) [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Toluene Adsorption by Mesoporous Silicas with Different Textural Properties: A Model Study for VOCs Retention and Water Remediation

et al. 2020

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In this work, different mesoporous silicas were studied as potential sorbents for toluene, selected as a model molecule of aromatic organic fuel-based pollutants. Three siliceous materials with different textural and surface properties (i.e., fumed silica and mesoporous Santa Barbara Amorphous (SBA)-15 and Mobil Composition of matter (MCM)-41 materials) were considered and the effect of their physico-chemical properties on the toluene adsorption process was studied. In particular, FT-IR spectroscopy was used to qualitatively study the interactions between the toluene molecule and the surface of silicas, while volumetric adsorption analysis allowed the quantitative determination of the toluene adsorption capacity. The combined use of these techniques revealed that textural properties of the sorbents, primarily porosity, are the driving forces that control the adsorption process. Considering that, under real conditions of usage, the sorbents are soaked in water, their hydrothermal stability was also investigated and toluene adsorption by both the gas and aqueous phase on hydrothermally pre-treated samples was studied. The presence of ordered porosity, together with the different pore size distribution and the amount of silanol groups, strongly affected the adsorption process. In toluene adsorption from water, SBA-15 performed better than MCM-41.

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“…In order to develop a simple synthesis procedure amenable to scale-up, some authors propose the functionalization of mesoporous silica during synthesis. One method consists in the co-condensation reaction adding a silane along with the primary silica precursor in the presence of a surfactant, thus obtaining structures known as periodic mesoporous organosilicas [50]. Cai's group reported the first one-pot synthesis of functionalized magnetic mesoporous silica composites for the adsorption removal of organic dyes from water [51].…”

Section: Silica-based Materialsmentioning

confidence: 99%

Nanomaterials with Tailored Magnetic Properties as Adsorbents of Organic Pollutants from Wastewaters

et al. 2020

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Water quality has become one of the most critical issue of concern worldwide. The main challenge of the scientific community is to develop innovative and sustainable water treatment technologies with high efficiencies and low production costs. In recent years, the use of nanomaterials with magnetic properties used as adsorbents in the water decontamination process has received considerable attention since they can be easily separated and reused. This review focuses on the state-of-art of magnetic core–shell nanoparticles and nanocomposites developed for the adsorption of organic pollutants from water. Special attention is paid to magnetic nanoadsorbents based on silica, clay composites, carbonaceous materials, polymers and wastes. Furthermore, we compare different synthesis approaches and adsorption performance of every nanomaterials. The data gathered in this review will provide information for the further development of new efficient water treatment technologies.

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Periodic Mesoporous Organosilicas as adsorbents for the organic pollutants removal in aqueous phase

Cited by 27 publications

References 37 publications

Removal of Pesticides from Waters by Adsorption: Comparison between Synthetic Zeolites and Mesoporous Silica Materials. A Review

Removal of Pesticides from Waters by Adsorption: Comparison between Synthetic Zeolites and Mesoporous Silica Materials. A Review

Toluene Adsorption by Mesoporous Silicas with Different Textural Properties: A Model Study for VOCs Retention and Water Remediation

Nanomaterials with Tailored Magnetic Properties as Adsorbents of Organic Pollutants from Wastewaters

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