Vanadium-doped ZnO nanorods: magnetic and enhanced H2 properties

Bathalavaram, Poornaprakash; Puneetha, Peddathimula; Ramu, S.; Jeon, Junho; Kwon, Min-Woo; Lee, Dong-Yeon; Mallem, Siva Pratap Reddy; Kim, Young Lae; Park, Kwi‐Il

doi:10.1007/s00339-022-06219-z

Cited by 3 publications

(4 citation statements)

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“…Divya and Pradyumnan [22] observed enhanced photocatalytic activity in Er-doped ZnO nanoparticles via solid-state synthesis. Recently, our research group also achieved enhanced H 2 evolution outcomes in the ZnO nanorods after V doping [11]. Moreover, our research group also achieved enhanced photocatalytic dye degradation activity in ZnO nanorods after Ga and Co doping [9,10].…”

Section: Resultsmentioning

confidence: 67%

“…The diminishing could be attributed to the bigger ionic radius of the Er (III) dopant ion as compared to that of the Zn (II). The p4-3.tif Print mag: 47700x @ 7.0 in (a) Recently, our research group also successfully prepared Ga- [9], Co- [10], and V- [11] doped ZnO NRs through various methods. Moreover, to explore the additional structural analysis and defect sites of the fabricated ZnO and ZnO:Er NRs, Raman analysis was employed, as depicted in Figure 2(b).…”

Section: Resultsmentioning

confidence: 99%

“…On the other hand, ample endeavors have been studied to modify ZnO via doping with several cations. Lately, doping of Ga, Co, and V ions in the ZnO system can engender a notable red shift in the band gap, promoting electron transfer and tailoring of the Fermi level of the ZnO system [9][10][11]. In addition, TM/RE-doped ZnO compounds also come beneath the diluted magnetic semiconductors (DMSs).…”

Section: Introductionmentioning

confidence: 99%

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Chemical Synthesis of ZnO:Er Nanorods for Photocatalytic H2 Evolution

Poornaprakash,

Puneetha,

Reddy

et al. 2023

International Journal of Energy Research

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The growth of one-dimensional (1D) ZnO systems has been attaining ample engrossment because of their unique photocatalytic and optoelectronic properties. In this context, we synthesized the high-quality ZnO and ZnO:Er nanorods through an inexpensive and facile solvothermal route. Morphological studies revealed that the fabricated samples correspond to nanorods. Erbium ion substitution into the host ZnO matrix was affirmed via XRD and Raman analyses. XPS analysis proposed that Er ion substitution in the Zn (II) site occurred with trivalent Er ions. The trivial diminishing of the optical band gap with the incorporation of Er into the host matrix was assessed by diffuse reflectance spectroscopy (DRS) studies. The photoluminescence spectra of both fabricated NRs display two nodes at ultraviolet and red luminescence. The fluorescence efficiency of the ZnO NRs diminished after Er doping. The ZnO and ZnO:Er NRs were measured for H2 evolution by water splitting beneath the UV light illumination. The ZnO:Er illustrated the efficient H2 evolution ability (21311 μmol h−1 g−1) in 5 h, which is higher than that of ZnO. To analyze the attained engrossing H2 outcomes, electrochemical studies were also employed. Fortunately, this is the first-ever endeavor in H2 production of the ZnO:Er NRs.

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Section: Resultsmentioning

confidence: 67%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Chemical Synthesis of ZnO:Er Nanorods for Photocatalytic H2 Evolution

Poornaprakash,

Puneetha,

Reddy

et al. 2023

International Journal of Energy Research

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“…2). 44 Furthermore, due to the low contents of MWCNT in V@ZnO, it is difficult to identify the bands of this catalyst in the composite material. No other impurity peaks related to other groups are observed, showing our synthesized sample's purity.…”

Section: Ftir Analysismentioning

confidence: 99%