Well-defined strategy for development of adsorbent using metal organic frameworks (MOF) template for high performance removal of hexavalent chromium

Gao, Ge; Nie, Lujie; Yang, Shengjiong; Jin, Penkang; Chen, Rongzhi; Ding, Dahu; Wang, Xiaochang C.; Wang, Wendong; Zhang, Qionghua

doi:10.1016/j.apsusc.2018.06.278

Cited by 55 publications

(21 citation statements)

References 46 publications

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“…Figure S5 display the impact of sorption time on the adsorption of Cr(VI) by carbon, Fe 3 O 4 and Fe 3 O 4 /C. The adsorption process experience three courses: fast course, slow course and equilibrium course . The removal behavior of Fe 3 O 4 /C and Fe 3 O 4 is consistent, Cr(VI) is quickly removed within 10 min, then the adsorption curve tends to be gentle from 10 to 120 min.…”

Section: Resultssupporting

confidence: 59%

Improved Removal of Cr(VI) using Fe₃O₄/C Magnetic Nanocomposites Derived from Potassium Fulvic Acid

Lin

Tian

et al. 2019

ChemistrySelect

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The development of high performance magnetic nanomaterials has a good application prospect in wastewater treatment. Herein, Fe3O4/C nanocomposites was synthesized by eco‐friendly hydrolysis‐calcination method using potassium fulvic acid (FA−K) and FeCl3⋅6H2O as raw materials. The morphology of Fe3O4/C nanocomposites exhibited a loose pore structure with uniform size (a diameter ∼ 27 nm). The prepared Fe3O4/C nanocomposites possessed excellent dispersibility and magnetic properties in aqueous solution. The removal efficiency and maximum adsorption capacity of Fe3O4/C nanocomposites were 98% and 64.0 mg g−1, respectively. Moreover, it was confirmed that the adsorption mechanism of Cr(VI) contains electrostatic attraction and redox reaction. In this work, we provide a convenient means for manufacturing Fe3O4/C nanocomposites, and prove that FA−K is a cheap carbon source for manufacturing Fe3O4/C nanocomposites, which makes Fe3O4/C nanocomposites have potential application value in the effective adsorption of Cr(VI).

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Section: Resultssupporting

confidence: 59%

Improved Removal of Cr(VI) using Fe₃O₄/C Magnetic Nanocomposites Derived from Potassium Fulvic Acid

Lin

Tian

et al. 2019

ChemistrySelect

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“…UV-vis DRS is also a useful tool to determine the band gap energy (Eg) of a semiconductor. For this purpose, the Tauc Plot approximation is usually employed [135,136]. This model determines the Eg by the equation:…”

Section: Ultraviolet-visible Diffuse Reflectance Spectroscopy (Uv-vismentioning

confidence: 99%

“…ICP-OES is an elemental analysis technique that uses the emission spectra of a sample to identify and quantify the present elements [136]. ICP-OES can detect most elements at very low concentrations, so it is used to know the purity of the MOFs and the relationship between the elements that form it [124].…”

Section: Inductively Coupled Plasma Optical Emission Spectroscopy (Icmentioning

confidence: 99%

A Review on the Synthesis and Characterization of Metal Organic Frameworks for Photocatalytic Water Purification

et al. 2019

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This review analyzes the preparation and characterization of metal organic frameworks (MOFs) and their application as photocatalysts for water purification. The study begins by highlighting the problem of water scarcity and the different solutions for purification, including photocatalysis with semiconductors, such as MOFs. It also describes the different methodologies that can be used for the synthesis of MOFs, paying attention to the purification and activation steps. The characterization of MOFs and the different approaches that can be followed to learn the photocatalytic processes are also detailed. Finally, the work reviews literature focused on the degradation of contaminants from water using MOF-based photocatalysts under light irradiation.

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“…The effects of dosage, pH, and initial concentration were evaluated respectively by keeping the other factors in the optimal condition. 4,8,12,16,20,24,28,32,36, and 40 mg of Fe/SA-C were mixed in 50 mL of Cd solution with the concentration of 50 mg L À1 at the designated temperature (298 K) and pH (6), respectively. The experiment with pH was controlled by adjusting the pH in the range of 3-10 with 0.1 mol L À1 NaOH and HNO 3 in 50 mL of 50 mg L À1 Cd(II) solution, and the dose of Fe/SA-C was 8 mg.…”

Section: Adsorption Experimentsmentioning

confidence: 99%

“…3 Among these methods, adsorption is regarded as a promising technique and has been studied extensively for its economy, high efficiency, simplicity, and absence of secondary contamination compared with other techniques. 4 Carbon is an attractive adsorption material with many advantages, such as low cost, easy processing, large specic surface area, excellent chemical stability and wide operating temperature range, and thus, numerous studies have reported the adsorption of pollutants by different carbon materials. [5][6][7][8][9] However, a single carbon material cannot fully meet the needs of pollutant treatment because carbon material with uncontrollable properties is sometimes easily affected by adsorption conditions.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of divalent cadmium by calcified iron-embedded carbon beads

Cheng

Wang

et al. 2020

RSC Adv.

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A novel iron-embedded carbon bead was prepared by the calcination of a calcium alginate gel bead mixed with iron nanoparticles coated by polydopamine. The prepared iron-embedded carbon bead was characterized by infrared spectrum analysis, X-ray diffraction, Raman spectroscopy, vibrating sample magnetometry, X-ray photoelectron spectroscopy, scanning electron microscopy and transmission electron microscopy. It was discovered that the novel structure efficaciously prevented the agglomeration of iron nanoparticles. Additionally, the effects of dose, pH, exposure time, temperature and initial concentration on the adsorption of Cd(II) were studied, and the reusability of the material was analyzed. Fe/SA-C showed high Cd(II) removal capability (220.3, 225.7, 240.8 mg g À1 at 288, 298, 308 K), easy recoverability and high stability. In addition, some slightly different interpretations of the adsorption mechanism are given. This study clearly revealed that Fe/SA-C has potential application in the removal of Cd(II).

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Well-defined strategy for development of adsorbent using metal organic frameworks (MOF) template for high performance removal of hexavalent chromium

Cited by 55 publications

References 46 publications

Improved Removal of Cr(VI) using Fe₃O₄/C Magnetic Nanocomposites Derived from Potassium Fulvic Acid

Improved Removal of Cr(VI) using Fe₃O₄/C Magnetic Nanocomposites Derived from Potassium Fulvic Acid

A Review on the Synthesis and Characterization of Metal Organic Frameworks for Photocatalytic Water Purification

Adsorption of divalent cadmium by calcified iron-embedded carbon beads

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Well-defined strategy for development of adsorbent using metal organic frameworks (MOF) template for high performance removal of hexavalent chromium

Cited by 55 publications

References 46 publications

Improved Removal of Cr(VI) using Fe3O4/C Magnetic Nanocomposites Derived from Potassium Fulvic Acid

Improved Removal of Cr(VI) using Fe3O4/C Magnetic Nanocomposites Derived from Potassium Fulvic Acid

A Review on the Synthesis and Characterization of Metal Organic Frameworks for Photocatalytic Water Purification

Adsorption of divalent cadmium by calcified iron-embedded carbon beads

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Improved Removal of Cr(VI) using Fe₃O₄/C Magnetic Nanocomposites Derived from Potassium Fulvic Acid

Improved Removal of Cr(VI) using Fe₃O₄/C Magnetic Nanocomposites Derived from Potassium Fulvic Acid