Facile preparation of amino functionalized graphene oxide decorated with Fe3O4 nanoparticles for the adsorption of Cr(VI)

Zhao, Donglin; Gao, Xuan; Wu, Changnian; Xie, Rong; Feng, Shaojie; Chen, Changlun

doi:10.1016/j.apsusc.2016.05.022

Cited by 371 publications

(122 citation statements)

References 59 publications

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“…[26][27][28] This indicates that we can effectively the chromic oxide content in the leather shavings for the adsorption of CR, which has -NH 2 groups. Lastly, cost of metallic compounds usually limits their use as adsorbents, while leather shavings are cheap and abundant disposals.…”

Section: -14mentioning

confidence: 99%

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Superb adsorption capacity of biochar derived from leather shavings for Congo red

Huang

Peng

et al. 2018

RSC Adv.

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Section: -14mentioning

confidence: 99%

“…However, in approximately neutral pH, weight loss of chromium in the biochar reached in surface water. 28,33,34 As pH of CR solution is at $7.0, 35 the following experiment was performed without adjusting the pH of aqueous solution.…”

Section: Adsorption For Crmentioning

confidence: 99%

Superb adsorption capacity of biochar derived from leather shavings for Congo red

Huang

Peng

et al. 2018

RSC Adv.

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“…Effluents containing a high Cr(VI) concentration from these industries are undesirably discharged into the aquatic environment [7–9]. The chrome tanning process is the most preferred among 80% of tannery industries in India and most of them discharge untreated wastewater into nearby water bodies [4].…”

Section: Introductionmentioning

confidence: 99%

Cr(VI) remediation from aqueous environment through modified-TiO₂-mediated photocatalytic reduction

Acharya

Naik

Parida

2018

Beilstein J. Nanotechnol.

112

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Cr(VI) exhibits cytotoxic, mutagenic and carcinogenic properties; hence, effluents containing Cr(VI) from various industrial processes pose threat to aquatic life and downstream users. Various treatment techniques, such as chemical reduction, ion exchange, bacterial degradation, adsorption and photocatalysis, have been exploited for remediation of Cr(VI) from wastewater. Among these, photocatalysis has recently gained considerable attention. The applications of photocatalysis, such as water splitting, CO2 reduction, pollutant degradation, organic transformation reactions, N2 fixation, etc., towards solving the energy crisis and environmental issues are briefly discussed in the Introduction of this review. The advantages of TiO2 as a photocatalyst and the importance of its modification for photocatalytic reduction of Cr(VI) has also been addressed. In this review, the photocatalytic activity of TiO2 after modification with carbon-based advanced materials, metal oxides, metal sulfides and noble metals towards reduction of Cr(VI) was evaluated and compared with that of bare TiO2. The photoactivity of dye-sensitized TiO2 for reduction of Cr(VI) was also discussed. The mechanism for enhanced photocatalytic activity was highlighted and attributed to the resultant properties, namely, effective separation of photoinduced charge carriers, extension of the light absorption range and intensity, increase of the surface active sites, and higher photostability. Advantages and limitations for photoreduction of Cr(VI) over modified TiO2 are depicted in the Conclusion. The various challenges that restrict the technology from practical applications in remediation of Cr(VI) from wastewater were addressed in the Conclusion section as well. The future perspectives of the field presented in this review are focused on the development of whole-solar-spectrum responsive, TiO2-coupled photocatalysts which provide efficient photocatalytic reduction of Cr(VI) along with their good recoverability and recyclability.

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“…) Q m (mg/g)Sorbents (ref. ) Q m (mg/g)AMGO 34 123.40Al 2 O 3 nanofibres 35 204.10Fe-SC 36 148.99Fe 3 O 4 @TiO 2 37 118.80Fe 3 O 4 /GO 38 69.49Layered double oxides/carbon 39 354.2Magnetic cucurbit[6]uril/GO 40 122.50g-C 3 N 4 @Ni-Mg-Al-LDH 41 99.7Oxime-grafted CMK-5 42 62.00 l -C 3 N 4 /PDA/PEI 3 43 60.51Polyacrylamide–hydroxyapatite 44 0.95TiO 2-x 45 65Polypyrrole 46 87.72CaTiO x ; CaAlO x 47 241.7; 258.29Amidoxime modified Fe 3 O 4 @SiO 2 48 105.50Titanate 49 358Modified silica gel 50 90.30CNFs 51 125Birnessite-modified pine biochar 52 47.05p-AO/ CNFs; c-AO/CNFs 53 588.24; 263.18Talc 54 41.60RUB-15 55 152MnO 2 –Fe 3 O 4 –RGO 56 108.70GO-CS-P 57 779.44SA/CMC-Ca-Al 58 101.76Ca/Al-LDH@CNTs 59 382.9Phosphate-modified pine wood sawdust 60 74.10GO (Present study)16.03GOMO (Present study)153.85…”

Section: Resultsmentioning

confidence: 99%

Facile preparation and adsorption performance of graphene oxide-manganese oxide composite for uranium

Yang

Zhu

Huang

2018

Sci Rep

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To overcome the limits of low adsorption capacity and the separation difficulty of solid from liquid phase for graphene oxide (GO), a novel nanocomposite graphene oxide-manganese oxide (GOMO) was facilely fabricated under ultrasonic radiation. The structures and micro-morphology of the products were characterized by fourier transform infrared (FT-IR) spectroscopy, raman shift spectroscopy, X-ray diffraction (XRD) pattern and scanning electron microscopy (SEM). The effect of solution pH, adsorbent dose, contact time, initial uranium concentration, ionic strength and temperature on uranium removal efficiency was studied by batch adsorption experiments. The product GOMO was used to examine the feasibility of the removal of high salt content in uranium-containing wastewater. The adsorption results were fitted using the Langmuir and Freundlich isotherm models. The kinetic parameters in the adsorption process were measured and fitted. Five adsorption/desorption cycles were performed using 3 M HNO3 as the regenerant in order to evaluate the reuse of GOMO.

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Facile preparation of amino functionalized graphene oxide decorated with Fe3O4 nanoparticles for the adsorption of Cr(VI)

Cited by 371 publications

References 59 publications

Superb adsorption capacity of biochar derived from leather shavings for Congo red

Superb adsorption capacity of biochar derived from leather shavings for Congo red

Cr(VI) remediation from aqueous environment through modified-TiO₂-mediated photocatalytic reduction

Facile preparation and adsorption performance of graphene oxide-manganese oxide composite for uranium

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Facile preparation of amino functionalized graphene oxide decorated with Fe3O4 nanoparticles for the adsorption of Cr(VI)

Cited by 371 publications

References 59 publications

Superb adsorption capacity of biochar derived from leather shavings for Congo red

Superb adsorption capacity of biochar derived from leather shavings for Congo red

Cr(VI) remediation from aqueous environment through modified-TiO2-mediated photocatalytic reduction

Facile preparation and adsorption performance of graphene oxide-manganese oxide composite for uranium

Contact Info

Product

Resources

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Cr(VI) remediation from aqueous environment through modified-TiO₂-mediated photocatalytic reduction