The removal of nickel and lead ions from aqueous solutions using green synthesized silica microparticles

Ifijen, Ikhazuagbe H.; Itua, Anastasia B.; Maliki, Muniratu; Ize-Iyamu, Christie O.; Omorogbe, Stanley O.; Aigbodion, A. I.; Ikhuoria, Esther U.

doi:10.1016/j.heliyon.2020.e04907

Cited by 48 publications

(6 citation statements)

References 35 publications

(39 reference statements)

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“…The linear Langmuir q m values ranged from 89.127 to 168.919 mg/g. For Langmuir, Freundlich, and Temkin with an R 2 value of 0.993, 0.974, and 0.952, respectively, the experimental data are better fitted by Langmuir with the highest R 2 signifying that the binding sites on the surface of MC/TiO 2 NP nanocomposite are homogeneous and monolayer, and a similar trend was observed in other studies. − …”

Section: Resultssupporting

confidence: 75%

Synthesis and Characterization of MC/TiO₂ NPs Nanocomposite for Removal of Pb²⁺ and Reuse of Spent Adsorbent for Blood Fingerprint Detection

et al. 2023

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The removal of toxic heavy metals from wastewater through the use of novel adsorbents is expensive. The challenge arises after the heavy metal is removed by the adsorbent, and the fate of the adsorbent is not taken care of. This may create secondary pollution. The study aimed to prepare mesoporous carbon (MC) from macadamia nutshells coated with titanium dioxide nanoparticles (TiO2 NPs) using a hydrothermal method to remove Pb2+ and to test the effectiveness of reusing the lead-loaded spent adsorbent (Pb2+-MC/TiO2 NP nanocomposite) in blood fingerprint detection. The samples were characterized using SEM, which confirmed spherical and flower-like structures of the nanomaterials, whereas TEM confirmed a particle size of 5 nm. The presence of functional groups such as C and Ti and a crystalline size of 4 nm were confirmed by FTIR and XRD, respectively. The surface area of 1283.822 m2/g for the MC/TiO2 NP nanocomposite was examined by BET. The removal of Pb2+ at pH 4 and the dosage of 1.6 g/L with the highest percentage removal of 98% were analyzed by ICP-OES. The Langmuir isotherm model best fit the experimental data, and the maximum adsorption capacity of the MC/TiO2 NP nanocomposite was 168.919 mg/g. The adsorption followed the pseudo-second-order kinetic model. The ΔH° (−54.783) represented the exothermic nature, and ΔG° (−0.133 to −4.743) indicated that the adsorption process is spontaneous. In the blood fingerprint detection, the fingerprint details were more visible after applying the Pb2+-MC/TiO2 NP nanocomposite than before the application. The reuse application experiments showed that the Pb2+-MC/TiO2 NP nanocomposite might be a useful alternative material for blood fingerprint enhancement when applied on nonporous surfaces, eliminating secondary pollution.

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Section: Resultssupporting

confidence: 75%

Synthesis and Characterization of MC/TiO₂ NPs Nanocomposite for Removal of Pb²⁺ and Reuse of Spent Adsorbent for Blood Fingerprint Detection

et al. 2023

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“…Nickel is notably carcinogenic and can cause a range of health issues, including digestive disorders, lung and kidney problems, and skin dermatitis [2]. A 2022 study highlighted the detrimental respiratory effects of nickel exposure on workers in a nickel refining factory, showing that long-term exposure to 116 E. Hidayani et al, Functionalization Mesoporous Silica ........... nickel dust and fumes significantly increases the risk of developing respiratory diseases such as bronchitis, asthma, and lung cancer [3].…”

Section: Introductionmentioning

confidence: 99%

Functionalization Mesoporous Silica using Aminopropyltriethoxysilane (APTES) as Adsorbent for Removal Ni (II) from Aqueous Solution

Hidayani,

Andriayani,

Taufik

2024

JKPK

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<p>This study successfully synthesized mesoporous silica using the template methyl ester ricinoleate (MS-TMR) and further functionalized the MS-TMR surface with 3-aminopropyltriethoxysilane (APTES). The functionalization of MS-TMR with APTES was achieved through a 48-hour grafting method. For the adsorption experiments, 20 mg of both MS-TMR and MS-TMR-APTES adsorbents were employed to remove Ni(II) from aqueous solutions at a concentration of 30 mg/L and pH 6. The objective was to assess the adsorption capacity and to characterize the synthesized adsorbents. Characterization was conducted using Fourier Transform Infrared Spectroscopy (FTIR) and X-ray Diffraction (XRD). FTIR analysis revealed that the MS-TMR adsorbent possessed silanol (Si-OH) and siloxane (Si-O-Si) groups. Conversely, the MS-TMR-APTES adsorbent exhibited additional amine (N-H) and C-H groups after the APTES grafting. XRD results indicated that both samples were amorphous. The concentration of Ni(II) ions was determined using Atomic Absorption Spectroscopy (AAS), which facilitated the calculation of removal percentages and adsorption capacities. MS-TMR achieved a mere 3.54% removal of Ni(II) ions, corresponding to an adsorption capacity of 3.21 mg/g. In contrast, MS-TMR-APTES demonstrated significantly enhanced performance, removing 54.23% of Ni(II) ions with an adsorption capacity of 48.81 mg/g. The findings suggest that APTES-functionalized MS-TMR has considerable potential for removing Ni(II) ions and could be explored further for the adsorption of other heavy metal ions.</p>

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“…Due to their numerous properties, such as increased strength, chemical reactivity, or conductivity due to high surface to volume ratios, altered electronic bandgap energy (optical properties), and tailored functionality, nanostructures are a product of the industrial revolution era and have led to an explosion of hundreds of new products. These properties enable their use in a wide range of inventive applications [ 22 – 33 ]. Particularly, metallic NPs have been established to be a promising biomedical therapeutic antibacterial agent as they function by directly impacting the bacterial cell wall without condition of endocytosis [ 33 – 36 ].…”

Section: Introductionmentioning

confidence: 99%

“…These properties enable their use in a wide range of inventive applications [ 22 – 33 ]. Particularly, metallic NPs have been established to be a promising biomedical therapeutic antibacterial agent as they function by directly impacting the bacterial cell wall without condition of endocytosis [ 33 – 36 ]. Furthermore, they have also been shown to possess magnetic or even optical features [ 37 ].…”

Section: Introductionmentioning

confidence: 99%

Treatments of Mycobacterium tuberculosis and Toxoplasma gondii with Selenium Nanoparticles

Ifijen

Atoe²,

Ekun

et al. 2023

BioNanoSci.

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Toxoplasma gondii and Mycobacterium tuberculosis are pathogens that are harmful to humans. When these diseases interact in humans, the result is typically fatal to the public health. Several investigations on the relationship between M. tuberculosis and T. gondii infections have found that there is a strong correlation between them with each infection having a reciprocal effect on the other. TB may contribute to the reactivation of innate toxoplasmosis or enhance susceptibility to a new infection, and toxoplasma co-infection may worsen the severity of pulmonary tuberculosis. As a consequence, there is an earnest and urgent necessity to generate novel therapeutics that can subdue these challenges. Selenium nanostructures’ compelling properties have been shown to be a successful treatment for Mycobacterium TB and Toxoplasma gondii. Despite the fact that selenium (Se) offers many health advantages for people, it also has a narrow therapeutic window; therefore, consuming too much of either inorganic or organic compounds based on selenium can be hazardous. Compared to both inorganic and organic Se, Se nanoparticles (SeNPs) are less hazardous. They are biocompatible and excellent in selectively targeting specific cells. As a consequence, this review conducted a summary of the efficacy of biogenic Se NPs in the treatment of tuberculosis (TB) and toxoplasmosis. Mycobacterium tuberculosis , Toxoplasma gondii , and their co-infection were all briefly described.

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The removal of nickel and lead ions from aqueous solutions using green synthesized silica microparticles

Cited by 48 publications

References 35 publications

Synthesis and Characterization of MC/TiO₂ NPs Nanocomposite for Removal of Pb²⁺ and Reuse of Spent Adsorbent for Blood Fingerprint Detection

Synthesis and Characterization of MC/TiO₂ NPs Nanocomposite for Removal of Pb²⁺ and Reuse of Spent Adsorbent for Blood Fingerprint Detection

Functionalization Mesoporous Silica using Aminopropyltriethoxysilane (APTES) as Adsorbent for Removal Ni (II) from Aqueous Solution

Treatments of Mycobacterium tuberculosis and Toxoplasma gondii with Selenium Nanoparticles

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The removal of nickel and lead ions from aqueous solutions using green synthesized silica microparticles

Cited by 48 publications

References 35 publications

Synthesis and Characterization of MC/TiO2 NPs Nanocomposite for Removal of Pb2+ and Reuse of Spent Adsorbent for Blood Fingerprint Detection

Synthesis and Characterization of MC/TiO2 NPs Nanocomposite for Removal of Pb2+ and Reuse of Spent Adsorbent for Blood Fingerprint Detection

Functionalization Mesoporous Silica using Aminopropyltriethoxysilane (APTES) as Adsorbent for Removal Ni (II) from Aqueous Solution

Treatments of Mycobacterium tuberculosis and Toxoplasma gondii with Selenium Nanoparticles

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Product

Resources

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Synthesis and Characterization of MC/TiO₂ NPs Nanocomposite for Removal of Pb²⁺ and Reuse of Spent Adsorbent for Blood Fingerprint Detection

Synthesis and Characterization of MC/TiO₂ NPs Nanocomposite for Removal of Pb²⁺ and Reuse of Spent Adsorbent for Blood Fingerprint Detection