Comparative Study Between Two Zeolitic Imidazolate Frameworks as Adsorbents for Removal of Organoarsenic, As(III) and As(V) Species from Water

Ahmad, Khalil; Shah, Habib-ur-Rehman; Ahmad, Muhammad; Ahmed, Muhammad Mahboob; Naseem, Khalida; Riaz, Nagina; Ali, Muhammad Arif; Ayub, Asif; Ahmad, Mahmood; Ahmad, Zahoor; Munwar, Alisha; Rauf, Abdul; Hussain, Riaz; Ashfaq, Muhammad

doi:10.30744/brjac.2179-3425.ar-112-2021

Cited by 25 publications

(9 citation statements)

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“…6,7 In the case of As, the toxicity of inorganic forms is generally higher than that of the organic ones, and As( iii ) is more toxic than As( v ). 8…”

Section: Introductionmentioning

confidence: 99%

On site separation of inorganic forms of thallium and arsenic in sea water systems followed by ICP-MS determination

Kowalska,

Drwal,

Tutaj

et al. 2023

Anal. Methods

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“…6,7 In the case of As, the toxicity of inorganic forms is generally higher than that of the organic ones, and As( iii ) is more toxic than As( v ). 8…”

Section: Introductionmentioning

confidence: 99%

On site separation of inorganic forms of thallium and arsenic in sea water systems followed by ICP-MS determination

Kowalska,

Drwal,

Tutaj

et al. 2023

Anal. Methods

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“…ZIF-8 based on Zn 2+ due to its low toxicity and good biocompatibility has attracted important attention in various applications, mainly gas storage, contaminant adsorption [24][25][26][27] and drug delivery [28,29].…”

Section: Introductionmentioning

confidence: 99%

Sustainable Synthesis of Zeolitic Imidazolate Framework-8 Nanoparticles and Application in the Adsorption of the Drug Chlorhexidine

Oliveira¹,

Silva²,

Barbosa³

et al. 2023

Catal Res

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In an attempt to synthesize nanomaterial concerning chemistry, the sustainable synthesis of Zeolitic Imidazolate Framework-8 (ZIF-8) nanoparticles by a low-cost approach through the recycling of waste mother liquors was explored and then indicated the potential to remove chlorhexidine (CHLX) from an aqueous solution. ZIF-8 was produced under solvothermal reaction at 25°C and characterized by Fourier Transform Infrared Spectroscopy, X-ray diffraction, adsorption/desorption of N<sub>2</sub>, dynamic light scattering and contact angle. The water Chemical stability test was conducted using ZIF-8 and it was immersed in pure water for 24 h at room temperature. Batch-type adsorption was used to check the potential of ZIF-8 (first and second generation) for the adsorption of the chlorhexidine with initial chlorhexidine concentration (0.05, 0.06 and 0.07 mol/L), agitation time (1, 3.5 and 6 h) and the mass of nano-adosrbent (0.04, 0.05 and 0.06 g). Process optimization was performed through a Factorial experimental design. The optimum conditions were selected for the nano-adsorbent mass of 0.04 g, agitation time of 1 h and initial chlorhexidine concentration 0.07 mmol/L. The ZIF-8 sustainable synthesis was efficient and generated a crystalline nanomaterial. The result shows that ZIF-8 is stable in water under ambient conditions. The ZIF-8 first generation and ZIF-8 second generation exhibit a high adsorption capacity (27.17 mg/g and 30.96 mg/g). It was found that, under the synthesis conditions, the recycled mother liquor user did not affect the final characteristics of this nanomaterial. The results indicated that the initial concentration of chlorhexidine and nano-adsorbent mass influenced the adsorption capacity. Experimental design provided the process optimum conditions (1 h, 0.04 g of adsorbent mass and 0.07 mmol/L).

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“…It is important to note that many heavy metals are water-soluble, possess high toxicity, and are carcinogenic. Non-biodegradable heavy metals beyond an acceptable limit in water sources, if consumed, can lead to organ damage, cancer, nervous system damage, and in some extreme cases, even lead to death [15,16].…”

Section: Introductionmentioning

confidence: 99%

Adopting Sustainable Jatropha Oil Bio-Based Polymer Membranes as Alternatives for Environmental Remediation

et al. 2022

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This study aimed to optimize the removal of Cu(II) ions from an aqueous solution using a Jatropha oil bio-based membrane blended with 0.50 wt% graphene oxide (JPU/GO 0.50 wt%) using a central composite model (CCD) design using response surface methodology. The input factors were the feed concentration (60–140) ppm, pressure (1.5–2.5) bar, and solution pH value (3–5). An optimum Cu(II) ions removal of 87% was predicted at 116 ppm feed concentration, 1.5 bar pressure, and pH 3.7, while the validated experimental result recorded 80% Cu(II) ions removal, with 95% of prediction intervals. A statistically non-significant term was removed from the analysis by the backward elimination method to improve the model’s accuracy. Using the reduction method, the predicted R2 value was increased from −0.16 (−16%) to 0.88 (88%), suggesting that the reduced model had a good predictive ability. The quadratic regression model was significant (R2 = 0.98) for the optimization prediction. Therefore, the results from the reduction model implied acceptable membrane performance, offering a better process optimization for Cu(II) ions removal.

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Comparative Study Between Two Zeolitic Imidazolate Frameworks as Adsorbents for Removal of Organoarsenic, As(III) and As(V) Species from Water

Cited by 25 publications

References 0 publications

On site separation of inorganic forms of thallium and arsenic in sea water systems followed by ICP-MS determination

On site separation of inorganic forms of thallium and arsenic in sea water systems followed by ICP-MS determination

Sustainable Synthesis of Zeolitic Imidazolate Framework-8 Nanoparticles and Application in the Adsorption of the Drug Chlorhexidine

Adopting Sustainable Jatropha Oil Bio-Based Polymer Membranes as Alternatives for Environmental Remediation

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