Ni–ZnO nanocomposites assembled under various morphologies like columnar, nanochains, and granular structure for removal of pollutants

Kaviyarasan, K.; Sivasankar, Thirugnanasambandam; Ponnusamy, Vinoth Kumar; Anandan, Sambandam

doi:10.1016/j.matchemphys.2020.123299

Cited by 5 publications

(3 citation statements)

References 38 publications

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Section: Preparation Of Zno-based Nanocompositesmentioning

confidence: 99%

“…A unique three-dimensional porous Ni-ZnO heterojunction nanocomposite was synthesized by a sonochemical method followed by annealing the zinc and nickel oxalate composite precursor formed at 400-600°C. This method leads to columnarlike morphology Ni-ZnO NCs (Kaviyarasan et al, 2020). Due to the interaction between ZnO nanoparticles and talc, the zinc oxide/talc nanocomposite had the maximum removal percentage of Pb 21 , approximately 95%.…”

Section: Sonicationmentioning

confidence: 99%

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ZnO-based nanocomposites for removal of lead (Pb²⁺) from water/wastewater: a review

Khashij

Salmani

Dalvand

et al. 2022

PRT

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Purpose This paper aims to investigation of processes for Pb2+ elimination from water/wastewater as a significant public health issue in many parts of world. The removal of Pb2+ ions by various nanocomposites has been explained from water/wastewaters. ZnO-based nanocomposites, as eco-friendly nanoparticles with unique physicochemical properties, have received increased attention to remove Pb2+ ions from water/wastewaters. Design/methodology/approach In this review, different ZnO-based nanocomposites were reviewed for their application in the removal of Pb2+ ions from the aqueous solution, typically for wastewater treatment using methodology, such as adsorption. This review focused on the ZnO-based nanocomposites for removing Pb2+ ions from water and wastewaters systems. Findings The ZnO-based nanocomposite was prepared by different methods, such as electrospinning, hydrothermal/alkali hydrothermal, direct precipitation and polymerization. Depending on the preparation method, various types of ZnO-based nanocomposites like ZnO-metal (Cu/ZnO, ZnO/ZnS, ZnO/Fe), ZnO-nonmetal (PVA/ZnO, Talc/ZnO) and ZnO-metal/nonmetal (ZnO/Na-Y zeolite) were obtained with different morphologies. The effects of operational parameters and adsorption mechanisms were discussed in the review. Research limitations/implications The findings may be greatly useful in the application of the ZnO-based nanocomposite in the fields of organic and inorganic pollutants adsorption. Practical implications The present study is novel, because it investigated the morphological and structural properties of the synthesized ZnO-based nanocomposite using different methods and studied the capability of green-synthesized ZnO-based nanocomposite to remove Pb2+ ions as water contaminants. Social implications The current review can be used for the development of environmental pollution control measures. Originality/value This paper reviews the rapidly developing field of nanocomposite technology.

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Section: Preparation Of Zno-based Nanocompositesmentioning

confidence: 99%

Section: Sonicationmentioning

confidence: 99%

ZnO-based nanocomposites for removal of lead (Pb²⁺) from water/wastewater: a review

Khashij

Salmani

Dalvand

et al. 2022

PRT

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“…However, as a photo-generated carrier it is shortlived, it has low photocatalytic efficiency under visible light and other flaws restraining its degradation efficiency [9,10]. Many approaches have been proposed to solve these problems, such as element doping, morphological control and so on [11][12][13]. Modifying the photocatalyst to be a heterojunction was found to be an efficient means to enhance the visible light utilization of g-C 3 N 4 and control its cost.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of La2O3/g-C3N4 Heterojunction with Enhanced Photocatalytic Performance of Tetracycline Hydrochloride

Zhu

Xia

et al. 2021

Crystals

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In this study, La2O3/g-C3N4 heterojunction photocatalysts doped with different dosages of La2O3 were constructed by a facile ultrasound-assisted calcination approach. The as-prepared photocatalysts were characterized by XRD, FTIR, FESEM, TEM, XPS, PL and DRS to verify the composite photocatalysts’ purity and to investigate their structural, morphological and elemental composition, and their energy band. According to the results, a type of pure rod–sheet-shaped, heterostructured nanoparticle was successfully obtained. Decorated with 10% La2O3, 2 g/L of the composite sample had a 93% degradation rate for 20 mg/L tetracycline hydrochloride within 2 h under visible light at a pH of 7. After four successive photocatalytic runs, satisfactory stability and reusability was exhibited, with 70% of the tetracycline hydrochloride being removed in the final experiment. Electrons (e−), photogenerated holes (h+), superoxide radical anions (·O2−) and hydroxyl radicals (·OH) were the fundamental active species during the photocatalytic process and were investigated via quenching experiments. Furthermore, possible photocatalytic mechanisms were analyzed in this work.

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Immobilization of nZVI particles on cotton fibers for rapid decolorization of organic dyes

Yang

Zhang

et al. 2021

Cellulose

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Ni–ZnO nanocomposites assembled under various morphologies like columnar, nanochains, and granular structure for removal of pollutants

Cited by 5 publications

References 38 publications

ZnO-based nanocomposites for removal of lead (Pb²⁺) from water/wastewater: a review

ZnO-based nanocomposites for removal of lead (Pb²⁺) from water/wastewater: a review

Fabrication of La2O3/g-C3N4 Heterojunction with Enhanced Photocatalytic Performance of Tetracycline Hydrochloride

Immobilization of nZVI particles on cotton fibers for rapid decolorization of organic dyes

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Ni–ZnO nanocomposites assembled under various morphologies like columnar, nanochains, and granular structure for removal of pollutants

Cited by 5 publications

References 38 publications

ZnO-based nanocomposites for removal of lead (Pb2+) from water/wastewater: a review

ZnO-based nanocomposites for removal of lead (Pb2+) from water/wastewater: a review

Fabrication of La2O3/g-C3N4 Heterojunction with Enhanced Photocatalytic Performance of Tetracycline Hydrochloride

Immobilization of nZVI particles on cotton fibers for rapid decolorization of organic dyes

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Product

Resources

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ZnO-based nanocomposites for removal of lead (Pb²⁺) from water/wastewater: a review

ZnO-based nanocomposites for removal of lead (Pb²⁺) from water/wastewater: a review