Occurrence of Vanadium in Groundwater of Jeju Island, Korea

Hyun, Ik-Hyun; Yun, Seong Taek; Kim, Ho-Rim; Kam, Sang-Kyu

doi:10.5322/jesi.2016.25.11.1563

Cited by 3 publications

(6 citation statements)

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“…As noted above, these results suggest that Korean bottled water chemistry is altered by the manufacturing process. In a previous study, the Rb concentration in groundwater sourced from a basaltic aquifer in Jeju Island (9.98 µg/L, n = 258 [31]) was several times higher than that in groundwater sourced from granitic and metamorphic rocks, which supports this interpretation.…”

Section: Rubidium (Rb)supporting

confidence: 67%

“…The water samples from metamorphic rocks had higher Li concentrations, similar to that of groundwater in Jeju Island, Korea, which is mostly composed of basaltic rocks (12.0 ± 20.0 µg/L, n = 11) [30]. By contrast, Hyun et al [31] reported significantly lower Li concentrations (0.6 µg/L) in Jeju groundwater (n = 258). By comparison, the Li concentration ranges in European bottled water range widely: 2.59 µg/L for the 25th percentile and 54.4 µg/L for the 75th percentile (median 10.0 µg/L).…”

Section: Lithium (Li) and Vanadium (V)mentioning

confidence: 63%

“…A relatively high V concentration (>10 µg/L) was reported in water samples from volcanic areas [29]. Similarly, the V concentration for groundwater in Jeju Island was relatively higher (12.0 µg/L, n = 2595) [31].…”

Section: Lithium (Li) and Vanadium (V)mentioning

confidence: 82%

“…Hence, the main factor controlling Ba concentration is likely to be site-specific, e.g., redox conditions [8]. In addition, groundwater derived from volcanic rocks in Korea (e.g., Jeju Island [31]) had higher Ba concentration than that from metamorphic rocks (Figure 4), which reflects the lithological features.…”

Section: Barium (Ba)mentioning

confidence: 99%

“…European bottled waters with the highest Cr concentrations (up to 27.2 µg/L) are linked to the occurrence of ultramafic rocks [8]. Similarly, groundwater from the volcanic island of Jeju in Korea have a higher Cr concentration (average 1.5 ± 1.41 µg/L, n = 258 [31]) than those in the Korean bottled waters. Likewise, the lower Cr concentration in the Korean bottled waters derived from felsic rocks water likely reflects lithological features.…”

Section: Chromium (Cr)mentioning

confidence: 99%

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Major and Trace Element Geochemistry of Korean Bottled Waters

Shin

Ryu

Shin

et al. 2020

Water

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The Korean bottled water market has continuously expanded during the last 25 years. However, in-depth studies of its geochemistry have not been conducted. Four types of bottled water manufactured in South Korea (i.e., natural mineral water, NMW; functional water, FW; carbonated water, CW; and desalinated seawater, DSW) were investigated to classify the water type, verify the accuracy of the ion contents detailed on the bottle labels, and decipher the origin of the water sources using major and trace elements and their isotopes. The waters was classified into three types: Ca-HCO3, Ca(Mg)-Cl, and Na-HCO3. NMW and FW are mainly of the Ca-HCO3 type. Our findings indicate that Korean bottled water chemistry is associated with lithological features and manufacturing processes; NMW is closely related to lithology while FW and DSW are strongly affected by manufacturing processes. Unlike major ions, trace elements cannot be used to decipher Korean bottled water chemistry because they show little apparent relationship with lithology. Regardless of the water chemistry, typical isotopic signals corresponding to intrinsic water were observed in all of the samples, indicating that groundwater and seawater were the sources of Korean bottled water.

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Section: Rubidium (Rb)supporting

confidence: 67%

Section: Lithium (Li) and Vanadium (V)mentioning

confidence: 63%

Section: Lithium (Li) and Vanadium (V)mentioning

confidence: 82%

Section: Barium (Ba)mentioning

confidence: 99%

Section: Chromium (Cr)mentioning

confidence: 99%

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Major and Trace Element Geochemistry of Korean Bottled Waters

Shin

Ryu

Shin

et al. 2020

Water

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Construction of Co–Se–W at Interfaces of Phase‐Mixed Cobalt Selenide via Spontaneous Phase Transition for Platinum‐Like Hydrogen Evolution Activity and Long‐Term Durability in Alkaline and Acidic Media

Zhang,

Cheng,

Xiao

et al. 2024

Advanced Materials

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Cost‐effective transition metal chalcogenides (TMCs) are highly promising electrocatalysts for both alkaline and acidic hydrogen evolution reactions (HER). However, unsatisfactory HER kinetics and stability have severely hindered their applications in industrial water electrolysis. Herein, a nanoflowers‐shaped W‐doped cubic/orthorhombic phase‐mixed CoSe2 catalyst ((c/o)‐CoSe2‐W) is reported. The W doping induces spontaneous phase transition from stable phase cubic CoSe2 to metastable phase orthorhombic CoSe2, which not only enables precise regulation of the ratio of two phases, but also realizes W doping at the interfaces of two phases. The (c/o)‐CoSe2‐W catalyst exhibits a Pt‐like HER activity in both alkaline and acidic media, with record‐low HER overpotentials of 29.8 mV (alkaline) and 35.9 mV (acidic) at 10 mA cm−2, respectively, surpassing the vast majority of previously reported non‐precious metal electrocatalysts for both alkaline and acidic HER. The Pt‐like HER activities originate from the formation of Co‐Se‐W active species on the c‐CoSe2 side at the phase interface, which effectively modulates electron structures of active sites, not only enhancing H2O adsorption and dissociation at Co sites, but also optimizing H* adsorption to ΔGH* ≈ 0 at W sites. Benefiting from the abundant phase interfaces, the catalyst also displays outstanding long‐term durability in both acidic and alkaline media.This article is protected by copyright. All rights reserved

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Shift of nitrate sources in groundwater due to intensive livestock farming on Jeju Island, South Korea: With emphasis on legacy effects on water management

Kim

et al. 2021

Water Research

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Occurrence of Vanadium in Groundwater of Jeju Island, Korea

Cited by 3 publications

References 0 publications

Major and Trace Element Geochemistry of Korean Bottled Waters

Major and Trace Element Geochemistry of Korean Bottled Waters

Construction of Co–Se–W at Interfaces of Phase‐Mixed Cobalt Selenide via Spontaneous Phase Transition for Platinum‐Like Hydrogen Evolution Activity and Long‐Term Durability in Alkaline and Acidic Media

Shift of nitrate sources in groundwater due to intensive livestock farming on Jeju Island, South Korea: With emphasis on legacy effects on water management

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