Abstract:
This study presents the in situ deposition of nickel selenide (NiSe2) on tungsten trioxide (WO3) nanorods to enhance the photo electrocatalytic degradation of organic pollutants in water. The synthesis involves integrating nickel selenide (NiSe2) and tungsten trioxide (WO3) nanorod to form a heterojunction, utilizing a facile in situ growth method. The resulting NiSe2/WO3 heterojunction exhibits enhanced photocatalytic properties attributed to efficient charge separation, improved charge transfer dynamics, and synergistic catalytic activity created by an internal electric field and oxygen vacancy. The heterojunction demonstrates remarkable performance in the degradation of ciprofloxacin under visible light irradiation. Under optimum conditions, the photodegradation of ciprofloxacin reached 89% (0.0179 min−1) compared to pristine WO3, which only achieved 48% (0.0069 min−1) under the same conditions. The study systematically investigates the structural and morphological characteristics of the NiSe2/WO3 heterojunction and elucidates its superior photocatalytic efficacy through comprehensive experimental analyses. The primary reactive species responsible for CIP degradation were identified as photo generated h+ and ˙OH. The successful development of the NiSe2/WO3 heterojunction holds significant promise for advancing environmentally sustainable technologies in water treatment and pollution remediation.
Description:
DATA AVAILABITY STATEMENT: The data supporting this study's findings are available from
the corresponding author upon reasonable request. The
datasets generated during and/or analyzed during the current
study are not publicly available but are available from the
corresponding author on reasonable request. Additionally,
supplementary data and materials can be found in the ESI†
files associated with this publication.
