Rice husk ash adsorbent modified by iron oxide with excellent adsorption capacity for arsenic removal from water

Javed, K.H.; Mahmood, Sajid; Ammar, Muhammad; Abbas, Nasir; Shah, Mohib; Mustafa, Ghulam

doi:10.1007/s13762-022-04390-7

Cited by 15 publications

(4 citation statements)

References 22 publications

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“…The significantly high arsenic content in Ch‐Fe suggests that the modification with Fe‐NPs improves the selectivity of the chitosan microspheres for As(V) ions. Several studies report that arsenic has a considerable affinity for the surface of iron oxides and oxyhydroxides [49–52] . A particular complexation geometry between AsO 4 tetrahedra and surface FeO 6 Polyhedra is the reason for the high sorption of arsenic on iron oxyhydroxides [53] .…”

Section: Resultsmentioning

confidence: 99%

“…Several studies report that arsenic has a considerable affinity for the surface of iron oxides and oxyhydroxides. [49][50][51][52] A particular complexation geometry between AsO 4 tetrahedra and surface FeO 6 Polyhedra is the reason for the high sorption of arsenic on iron oxyhydroxides. [53] A hydroxyl group from these compounds is implicated in the ligand exchange process, forming this inner sphere surface complexation.…”

Section: Composite Characterizationmentioning

confidence: 99%

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Arsenate Adsorption from Aqueous Solutions Using Chitosan/Fe‐Nanoparticles Composite Microspheres

Manzo‐Valencia,

Alfaro‐Cuevas‐Villanueva,

Zárate‐Medina

et al. 2024

ChemistrySelect

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The adsorption behavior and synthesis of a chitosan microsphere composite with iron nanoparticles (Ch‐Fe) for the removal of arsenates [As(V)] from aqueous solutions were investigated. First, the chitosan microspheres (Ch‐SD) were obtained using the Spray Dryer volatilization technique (SD), optimizing their particle size. Then, the iron nanoparticles (Fe‐NPs) were prepared using the microwave precipitation technique. The composite was characterized, and the arsenate adsorption parameters were determined through batch‐type experiments. Significantly fast adsorption rates were observed for both adsorbents. Besides, Ch‐Fe and Ch‐SD effectively removed arsenates over a wide pH range. The hydroxyl and amino functional groups are involved in removing arsenates. The Pseudo‐second order and the Elovich models described arsenate kinetic sorption data for Ch‐Fe and Ch‐SD, respectively. The As(V) maximum adsorption capacities were 27.46 mg/g and 29.94 mg/g for Ch‐SD and Ch‐Fe, respectively, increasing significantly at elevated temperatures. The Langmuir‐Freundlich model adequately described the isothermal data for both materials, suggesting adsorption heterogeneity. The composite's surface impregnation with Fe‐NPs enhanced the Ch‐SD adsorption properties. The SD method was suitable for obtaining the chitosan/Fe‐NPs microspheres and effectively removed As(V) from aqueous solutions.

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Section: Resultsmentioning

confidence: 99%

Section: Composite Characterizationmentioning

confidence: 99%

Arsenate Adsorption from Aqueous Solutions Using Chitosan/Fe‐Nanoparticles Composite Microspheres

Manzo‐Valencia,

Alfaro‐Cuevas‐Villanueva,

Zárate‐Medina

et al. 2024

ChemistrySelect

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“…In contrast, the adsorption effectiveness decreases when the temperature and the concentration of heavy metal ions rise. Javed et al [14] used RHA and iron-oxide-modified RHA adsorbents to extract arsenic from drinking water. In the study of Chanda et al [15], silica is extracted from RHA and used to synthesize the zeolite Faujasite (FAU).…”

Section: Literature Reviewmentioning

confidence: 99%

Pi̇ri̇nç Kabuk Külü İle Endüstri̇yel Atik Sudan Kadmi̇yum İyonunun Gi̇deri̇lmesi̇ni̇n Modellenmesi̇ne Yöneli̇k Bi̇lgi̇sayar Tabanli Bi̇r Yöntem

Eryoldaş

Geyik

Tok

2023

Adıyaman Üniversitesi Mühendislik Bilimleri Dergisi

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Rice husk is a significant waste issue due to its high manufacturing rate. The removal of heavy metals from industrial wastewater using the adsorption method is one of the significant usage areas of rice husks. In addition to being more cost-effective than other methods for removing heavy metals from industrial wastewater, using rice husks for this purpose would solve the storage problem of the rice husks. In this study, Gaussian® 0.9 software is utilized to describe and simulate the binding process of the Cd2+ ion to the rice husk adsorbent and to perform geometric optimizations to identify the most stable structure. These optimized structures' adsorption energies were computed utilizing the Material Studio® 6.1 software. According to the findings, rice husks can be utilized as an adsorbent in place of more expensive substances. It has been demonstrated that, when compared to experimental procedures, the suggested strategy is both quicker and less expensive.

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“…Recent research has concentrated on developing cost-effective adsorbents for lead removal from aqueous solutions and industrial effluents such as lemon peels-doped iron (III) oxide-hydroxide [19], cotton stalk-derived biochar [20], human hair [21], cobalt ferrite-supported activated carbon [7], olive tree leaves [22], redox polymer [6], cucumber peel [23], corn straw biochar [24], tobacco leaves [25], fly ash geopolymer [26], polyvinyl alcohol modified tea waste [27], magnetite-waste tea composites [28], brewed tea waste [29], rice husk [30][31][32], cement-modified rice husk biochar [33], Ag-modified rice husk [34] and iron oxide modified rice husk [35]. Compared to unmodified rice husks, modified rice husks have been shown to have higher adsorption capabilities in various studies [36][37][38].…”

Section: Introductionmentioning

confidence: 99%

Removal of Lead Using Novel Composite Synthesized from Rice Husk and Used Tea Leaves Extract

Alam,

Sultana,

Sarker

et al. 2024

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Untreated industrial effluents, particularly from tanneries and heavy industries, are the main source of heavy metal pollution, which poses serious environmental risks. Lead is one of the most toxic heavy metals, adversely affects human functioning and accumulates in the environment. This study presents ACUTLaqE (Activated Carbon-Used Tea Leaves Aqueous Extract) as an effective adsorbent for Pb2+ ion removal from their aqueous solution. The composite was synthesized by blending activated carbon from rice husks with a tea extract solution and characterized using SEM, XRD, and FTIR spectroscopy. Batch tests demonstrated that ACUTLaqE is highly efficient, removing about 99% of Pb2+ ions at an adsorbent dose of 2 g/L within 30 minutes. The adsorption data conformed well to the Langmuir isotherm model, suggesting a homogeneous monolayer formation on the composite surface. The qm was 38.61 mg/g, with an RL value close to 0, indicating highly favourable adsorption. Thermodynamic parameters showed negative Gibbs free energy (ΔG⁰) values, reflecting a spontaneous adsorption process. The enthalpy (ΔH⁰) and entropy (ΔS⁰) changes were 66.86 KJmol-1 and 257.12 JK-1mol-1, respectively. The adsorption mechanism involved electrostatic interactions and surface complexation with the composite's hydroxyl and carboxyl groups. These findings suggest that ACUTLaqE is a promising adsorbent material for Pb2+ and potentially other heavy metals removal from industrial effluents.

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Rice husk ash adsorbent modified by iron oxide with excellent adsorption capacity for arsenic removal from water

Cited by 15 publications

References 22 publications

Arsenate Adsorption from Aqueous Solutions Using Chitosan/Fe‐Nanoparticles Composite Microspheres

Arsenate Adsorption from Aqueous Solutions Using Chitosan/Fe‐Nanoparticles Composite Microspheres

Pi̇ri̇nç Kabuk Külü İle Endüstri̇yel Atik Sudan Kadmi̇yum İyonunun Gi̇deri̇lmesi̇ni̇n Modellenmesi̇ne Yöneli̇k Bi̇lgi̇sayar Tabanli Bi̇r Yöntem

Removal of Lead Using Novel Composite Synthesized from Rice Husk and Used Tea Leaves Extract

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