Influence of particle size on the electrocatalytic activity and optical properties of NiO nanoparticles

Medeiros, Susane E.L.; Silva, Rodolfo Bezerra da; Gomes, Kelly Cristiane; Silva, Vinícius D.; Gonçalves, Juliana A.; Macedo, Daniel A.; Lourenço, Annaíres A.; Azevedo, S.

doi:10.1016/j.mseb.2023.116266

Cited by 7 publications

(2 citation statements)

References 79 publications

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“…61 Among metal oxide nanomaterials, NiO is an important semiconductor material with a wide band gap of 3.6 to 4.0 eV. 62 NiO is a nontoxic, eco-friendly and low-cost semiconductor material with good catalytic properties, high mechanical strength, high surface area, good chemical stability, high theoretical capacity and good cycling performance 63 and broadly applied in gas sensors, electrochemical sensors, solar cells, energy storage devices and adsorbents. 64 Therefore, in this work, the rGO nanosheets were modified with NiO nanoparticles to enhance their removal efficiency and eliminate toxic substances from aquatic environments.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of a symbiotic polyvinyl alcohol-functionalized NiO/rGO nanoadsorbent for control of bisphenol-a removal

Buledi,

Solangi,

Ali

et al. 2024

New J. Chem.

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Section: Introductionmentioning

confidence: 99%

Fabrication of a symbiotic polyvinyl alcohol-functionalized NiO/rGO nanoadsorbent for control of bisphenol-a removal

Buledi,

Solangi,

Ali

et al. 2024

New J. Chem.

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“…Results showed it to be both selective and effective against m-Tolyl HDZN. Moreover, the nanomaterials Er 2 O 3 and NiO are individually thought to be multifunctional because of their prestigious physio-chemical properties [25][26][27][28][29][30][31][32][33][34], and have a wide range of applications in biomedical [34][35][36][37], chemical [38,39], thermal conductivity [40,41], pharmaceutical [42][43][44][45], sensing [15,24,46,47], electrochromic [48,49], energy storage [50][51][52], agri-science [53][54][55], and catalysis fields [56][57][58][59][60][61][62].…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Study of Electrocatalytic Degradation of M-Tolylhydrazine with Binary Metal Oxide (Er2O3@NiO) Nanocomposite Modified Glassy Carbon Electrode

et al. 2023

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Generally, our ecosystem is continuously contaminated as a result of anthropogenic activities that form the basis of our comfort in our routine life. Thus, most scientists are engaged in the development of new technologies that can be used in environmental remediation. Herein, highly calcined binary metal oxide (Er2O3@NiO) semiconductor nanocomposite (NC) was synthesized using a classical wet chemical process with the intention to both detect and degrade the toxic chemicals in an aqueous medium using a novel electrochemical current–potential (I–V) approach for the first time. Optical, morphological, and structural properties of the newly synthesized semiconductor NC were also studied in detail using FT-IR, UV/Vis., FESEM-EDS, XPS, BET, EIS, and XRD techniques. Then, a modified glassy carbon electrode (GCE) based on the newly synthesized semiconductor nanocomposite (Er2O3@NiO-NC/Nafion/GCE) as a selective electrochemical sensor was fabricated with the help of 5% ethanolic-Nafion as the conducting polymer binder in order to both detect and electro-hydrolyze toxic chemicals in an aqueous medium. Comparative study showed that this newly developed Er2O3@NiO-NC/Nafion/GCE was found to be very selective against m-tolyl hydrazine (m-Tolyl HDZN) and to have good affinity in the presence of other interfering toxic chemicals. Analytical parameters were also studied in this approach to optimize the newly designed Er2O3@NiO-NC/Nafion/GCE as an efficient and selective m-Tolyl HDZN sensor. Its limit of detection (LOD) at an SNR of 3 was calculated as 0.066 pM over the linear dynamic range (LDR) of our target analyte concentration (0.1 pM–0.1 mM). The limit of quantification (LOQ) and sensitivity were also calculated as 0.22 pM and 14.50 µAµM−1cm−2, respectively. m-Tolyl HDZN is among the toxic chemicals in our ecosystem that have lethal effects in living beings. Therefore, this newly designed electrochemical sensor based on semiconductor nanostructure material offers, for the first time, a cost-effective technique, in addition to long-term stability, that can be used as an alternative for efficiently probing other toxic chemicals in real samples.

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BiVO4/boron-doped diamond heterojunction photoanode with boron doping engineering and enhanced photoelectrocatalytic activity

Huang

Meng

Zhang

et al. 2023

Diamond and Related Materials

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Influence of particle size on the electrocatalytic activity and optical properties of NiO nanoparticles

Cited by 7 publications

References 79 publications

Fabrication of a symbiotic polyvinyl alcohol-functionalized NiO/rGO nanoadsorbent for control of bisphenol-a removal

Fabrication of a symbiotic polyvinyl alcohol-functionalized NiO/rGO nanoadsorbent for control of bisphenol-a removal

A Comprehensive Study of Electrocatalytic Degradation of M-Tolylhydrazine with Binary Metal Oxide (Er2O3@NiO) Nanocomposite Modified Glassy Carbon Electrode

BiVO4/boron-doped diamond heterojunction photoanode with boron doping engineering and enhanced photoelectrocatalytic activity

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