Removal of methylene blue dye and lead ions from aqueous solution using activated carbon from black cumin seeds

Thabede, Patience Mapule; Shooto, Ntaote David; Naidoo, Eliazer Bobby

doi:10.1016/j.sajce.2020.04.002

Cited by 97 publications

(55 citation statements)

References 50 publications

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“…and the adsorbate, or a chemical reaction between adsorbent and adsorbate. In fact, at pH<pH ZCN , the surface of the carbon is positively charged, which promotes the adsorption of the anions, while the adsorption of cations is favored at pH>pH ZCN , where the surface of the carbon is negatively charged [28][29][30]135,159,176,184,196,211,[222][223][224]. Tu et al [183] studied the sorption properties of Bermuda grass derived activated carbon for Cr(VI) removal.…”

Section: Timementioning

confidence: 99%

“…Thus, the adsorption mechanism referred to as electrostatic interactions, hydrogen bonds, π-π stacking interactions, pore filling, hydrophobic interactions, ion exchange, and also other interactions (n-π interactions, etc.) and complexation reactions can take place [30,184,187,194,197,203,205,220,[226][227][228]. The micropores and mesopores of the porous network of activated carbon contribute to the adsorption of pollutants by pore-filling mechanisms according to their total volume and the size of the pollutant molecules, and this is influenced by the affinity of the adsorbent with respect to the pollutant [229].…”

Section: Timementioning

confidence: 99%

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Current State of Porous Carbon for Wastewater Treatment

et al. 2020

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Porous materials constitute an attractive research field due to their high specific surfaces; high chemical stabilities; abundant pores; special electrical, optical, thermal, and mechanical properties; and their often higher reactivities. These materials are currently generating a great deal of enthusiasm, and they have been used in large and diverse applications, such as those relating to sensors and biosensors, catalysis and biocatalysis, separation and purification techniques, acoustic and electrical insulation, transport gas or charged species, drug delivery, and electrochemistry. Porous carbons are an important class of porous materials that have grown rapidly in recent years. They have the advantages of a tunable pore structure, good physical and chemical stability, a variable specific surface, and the possibility of easy functionalization. This gives them new properties and allows them to improve their performance for a given application. This review paper intends to understand how porous carbons involve the removal of pollutants from water, e.g., heavy metal ions, dyes, and organic or inorganic molecules. First, a general overview description of the different precursors and the manufacturing methods of porous carbons is illustrated. The second part is devoted to reporting some applications such using porous carbon materials as an adsorbent. It appears that the use of porous materials at different scales for these applications is very promising for wastewater treatment industries.

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Section: Timementioning

confidence: 99%

Section: Timementioning

confidence: 99%

Current State of Porous Carbon for Wastewater Treatment

et al. 2020

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“…Lead is one of the heavy metals that are often found in industrial wastewater from various industrial activities ( Yarkandi, 2014 , Vasanthi et al, 2019 ). Its discharge into the environment possess a serious threat due to its toxicity to aquatic and terrestrial lives ( Thabede et al, 2020 ). Cadmium (Cd), lead (Pb), and mercury (Hg) are the most dangerous HMs, because of their cumulative nature in several organs ( Seiler and Berendonk, 2012 ).…”

Section: Introductionmentioning

confidence: 99%

Assessment the using of silica nanoparticles (SiO2NPs) biosynthesized from rice husks by Trichoderma harzianum MF780864 as water lead adsorbent for immune status of Nile tilapia (Oreochromis niloticus)

El‐Gazzar

Almanaa

Reda

et al. 2021

Saudi Journal of Biological Sciences

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Rice husks (RHs) was used as a substrate for biosynthesis of high-value Silica nanoparticles (SiO 2 NPs). An isolate of Trichoderma harzianum MF780864 ( T. harzianum ) was isolated and identified based on the Internal Transcribed Spacers (ITS) sequences; it showed the potentiality to induce SiO 2 NPs in the process of RHs biotransformation. SiO 2 NPs were produced extracellularly and their size was of about 89 nm. SiO 2 NPs characterized by oval, rod and cubical particles by using Transmission Electron Microscope (TEM).The Fourier transform infrared spectroscopy (FTIR) confirmed the presence of various functional groups of biomolecules and capping protein, encapsulating SiO 2 NPs. Water and fish samples were collected from private fish farms in El-Sharkia Governorate, Egypt. Lead (Pb) was detected from water and fish samples at its highest concentration at about 0.088 mg/L. The adsorption capacity of Pb by SiO 2 NPs was evaluated by testing different concentrations of SiO 2 NPs viz. 1, 2, and 3 mg/L, wherein 1 mg/L revealed the highest Pb adsorption efficiency. Within laboratory trials, the results indicated that highest Pb adsorption efficiency revealed through the increasing of SiO 2 NPs concentrations until 120 h. In vivo trial that lasted for 8 weeks, Nile tilapia ( Oreochromis niloticus) (29.78 ± 0.36 g body weight) supplemented with 0.088 mg/L Pb was divided into four experimental groups having three replicates (15 fish/replicate; 45 fish/group). The results showed that SiO 2 NPs supplementation through water revealed significant increase in growth and hematological parameters of O. niloticus . Moreover, enhancement of antioxidant capacity (TAC), and immune related gene expression of IL-1 β were increased in the presence of SiO 2 NPs compared with the groups of Pb exposure. Moreover, Pb residue level in fish muscles was noticeably decreased in the SiO 2 NPs treated groups. Thus, this research opens up other possibilities in the field of using SiO 2 NPs as a lead adsorbent for water bioremediation.

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“…1415 cm -1 'deki pik karboksilik grubun -OH eğilme titreşimine işaret eder [41]. 1236 cm -1 ve 1155 cm -1 'deki pikler -CO grubundan dolayıdır [27]…”

Section: Yüzeysel Fonksiyonel Gruplarunclassified

Çörek Otu Posasının Aktif Karbon Üretiminde Değerlendirilmesi

Aslan

2021

Fırat Üniversitesi Mühendislik Bilimleri Dergisi

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Öz: Çörek otu posası; çörek otundan yağ ekstrakte edildikten sonra geriye kalan kalıntıdır. Bu çalışmada zirai endüstriyel bir atık olan çörek otu posası aktif karbon üretimi amacıyla öncül madde olarak kullanılmıştır. Aktif karbon üretiminde kimyasal aktivasyon işlemi uygulanmıştır. Aktifleştirici madde olarak ZnCl2 kullanılmıştır. Farklı ZnCl2 emdirme oranlarında (1:1 ve 2:1) ve 500 o C'lik aktivasyon sıcaklığında aktif karbon üretimi gerçekleştirilmiştir. Elde edilen aktif karbon örneklerinin yapısal ve morfolojik karakterizasyonu BET, FTIR, XRD ve pHpzc analizleri ile yapılmıştır. 1:1 (AK1) ve 2:1 (AK2) emdirme oranlarında elde edilen aktif karbon örneklerinin yüzey alanları sırasıyla 505.073 m 2 /g ve 276.563 m 2 /g olarak bulunmuştur. Çalışmadan elde edilen sonuçlar çörek otu posasının aktif karbon üretimi için uygun bir öncül madde olduğunu göstermiştir. Anahtar kelimeler: Çörek otu posası, aktif karbon, kimyasal aktivasyon, çinko klorür (ZnCl2).

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Removal of methylene blue dye and lead ions from aqueous solution using activated carbon from black cumin seeds

Cited by 97 publications

References 50 publications

Current State of Porous Carbon for Wastewater Treatment

Current State of Porous Carbon for Wastewater Treatment

Assessment the using of silica nanoparticles (SiO2NPs) biosynthesized from rice husks by Trichoderma harzianum MF780864 as water lead adsorbent for immune status of Nile tilapia (Oreochromis niloticus)

Çörek Otu Posasının Aktif Karbon Üretiminde Değerlendirilmesi

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