Clay Soil Modification Techniques for the Adsorption of Heavy Metals in Aqueous Medium: A Review

Kayode, Adekeye Damilola; Sunday, Asaolu Samuel; Oluyemi, Adefemi Samuel; Adegalu, Adebawore Adefusisoye; Samson, Osundare Olusegun; Abidemi, Ibigbami Olayinka; Hellen, Olumide Abisola

doi:10.20431/2349-0403.0606003

Cited by 5 publications

(3 citation statements)

References 34 publications

(41 reference statements)

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“…In addition, the bands for the OHgroups were conspicuously observed around 1600 -1700 cm -1 . These peaks appeared as a result of inner surface OH and internal OH groups of NRK been perturbed by DMSO molecules [13,16,17]. Other additional obvious bands on DIK spectra, was an indication that the intercalation of functional organic molecules into the interlayer of the NRK clay material was successful.…”

Section: Infrared Absorption Spectra Characterizationmentioning

confidence: 97%

Exploration of Intercalated Kaolinite Clay for the Uptake of Basic Dye by Adsorption − Equilibrium, Kinetics and Thermodynamic Studies

Chigbundu¹,

Adebowale²

2021

JCSN

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Dyes are complex and sensitive organic chemicals which exposes microbial populations, aquatic lives and other living organisms to its toxic effects if their presence in water bodies or industrial effluents are not properly handled. This work therefore, comparatively studied the adsorption efficiencies of natural raw kaolinite (NRK) clay adsorbent and dimethyl sulphoxide (DMSO) faciley intercalated kaolinite clay (DIK) adsorbent for batch adsorption of Basis Red 2 (BR2) dye. The impact of varying the contact time, temperature and other operating variables on adsorption was also considered. The two adsorbents were characterized using SEM images, FTIR and XRD patterns. Linear and non-linear regression analysis of different isotherm and kinetic models were used to describe the appropriate fits to the experimental data. Error analysis equations were also used to measure the goodness-of-fit. Langmuir isotherm model best described the adsorption as being monolayer on homogenous surfaces while Kinetic studies showed that Elovich model provides the best fit to experimental data. The adsorption capacities of NRK and DIK adsorbents for the uptake of BR2 were 16.30 mg/g and 32.81 mg/g, respectively (linear regression) and 19.30 mg/g and 30.81 mg/g, respectively (non-linear regression). The thermodynamic parameter, ∆G showed that BR2 dye adsorption onto the adsorbents were spontaneous. DIK adsorbent was twice efficient compared with NRK for the uptake of BR2 dye.

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Section: Infrared Absorption Spectra Characterizationmentioning

confidence: 97%

Exploration of Intercalated Kaolinite Clay for the Uptake of Basic Dye by Adsorption − Equilibrium, Kinetics and Thermodynamic Studies

Chigbundu¹,

Adebowale²

2021

JCSN

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“…Recent advances in characterization and mineralogical evaluation of clay has led to the general classifications of clay minerals into three based on layer types [20]. This is also discussed in the recent work reported by Adekeye, et al [7] on physicochemical and mineralogical evaluation of a Nigeria clay mineral. The classification of clay minerals is based upon the number and arrangement of tetrahedral and octahedral sheets in the basic structures of clay minerals.…”

Section: Clay Minerals and Mineralogymentioning

confidence: 99%

“…The diversity of clay mineral applications can be attributed to their chemical, geotechnical, and biological characteristics. Clay minerals consist of various elements including the transition metals as shown by Adekeye, et al [7] (Figure 1) capable of interacting with microorganisms in soil.These elements may either be beneficial or toxic to microorganisms. Some elements may serve as sources of minerals for various biological functioning of clay minerals greatly influences the type of microorganism that can inhabit the minerals phyllo sphere and environment.…”

Section: Introductionmentioning

confidence: 99%

Bioactivities, Biomedical and Pharmaceutical Applications of Raw and Functionalized Clay Minerals: A Review

Kayode¹

2020

BJSTR

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Clay minerals are alumino-silicates that are relatively abundant in nature and materials derived from them are usually of low cost. The chemical and biogeochemical properties of clay minerals are of interests to researchers. Several nanostructured clay hybrid materials resulting from ion exchange and covalent bonding have been synthesized for environmental use, like removal of inorganic pollutants, herbicides, and pesticides from solution. Clay minerals and derived materials possess diverse biological properties. They play a vital role in microbial inhibition that is driven by different factors such as pH, presence of metals and metal ions and accompanied by several mechanisms. Biomedical and pharmaceutical applications of clay materials have grown in recent years due to interests of researchers in finding low cost alternative materials for problem solving in the field of medicine and pharmaceutical sciences. In these fields, clay minerals and their derived materials are often used as dietary supplements, widely applied in drug formulations and delivery systems, dermatology, pelotherapy or fangotherapy. Clay minerals are also ingested to soothe intestinal tracts and to remove toxins. This review discusses comprehensively the bioactivities, biomedical and pharmaceutical applications of clay minerals and their derived materials.

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Comparative study of chemical composition and evaluation of the In-Vitro antioxidant capacity of unripe and ripe banana species (Musa Sapientum) biowastes

Ogunlade¹,

Akinmade²,

Ogunlade³

et al. 2021

J Agric Sc Food Technol

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Clay Soil Modification Techniques for the Adsorption of Heavy Metals in Aqueous Medium: A Review

Cited by 5 publications

References 34 publications

Exploration of Intercalated Kaolinite Clay for the Uptake of Basic Dye by Adsorption − Equilibrium, Kinetics and Thermodynamic Studies

Exploration of Intercalated Kaolinite Clay for the Uptake of Basic Dye by Adsorption − Equilibrium, Kinetics and Thermodynamic Studies

Bioactivities, Biomedical and Pharmaceutical Applications of Raw and Functionalized Clay Minerals: A Review

Comparative study of chemical composition and evaluation of the In-Vitro antioxidant capacity of unripe and ripe banana species (Musa Sapientum) biowastes

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