Enhanced photoelectrochemical water splitting and photocatalytic degradation performance of visible light active ZnIn2S4/PANI nanocomposite

被引：39
作者：
Khosya, Mohit [1 ]
Kumar, Dheeraj [1 ,2 ]
Faraz, Mohd [1 ,2 ]
Khare, Neeraj [1 ]
机构：
[1] Indian Inst Technol Delhi, Dept Phys, New Delhi 110016, India
[2] Indian Inst Technol Delhi, Nanoscale Res Facil NRF, New Delhi 110016, India
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2023年 / 48卷 / 07期
关键词：
PANI; Heterojunction; PEC water Splitting; Methylene blue dye; PHOTOSENSITIZATION; NANOPARTICLES; NANOMATERIALS; POLYANILINE; GENERATION;
D O I：
10.1016/j.ijhydene.2022.10.034
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In our work, zinc indium sulfide coupled polyaniline (ZnIn2S4/PANI) nanocomposites were synthesized using chemisorption method. The substantial enhancement in the photo -catalytic and photoelectrochemical (PEC) water splitting activity under visible light illu-mination was demonstrated. ZnIn2S4/PANI nanocomposites were shown similar to 3 times improvement in the photodegradation of methylene blue (MB) dye as compared to bare ZnIn2S4 (ZIS) nanoflakes. In addition, the ZIS/PANI nanocomposite photoelectrode was exhibited similar to 3 times enhancement in photocurrent density (similar to 260 mu A/cm(2) at 0.8 V vs. Ag/AgCl) as compared to ZnIn2S4 photoelectrode. However, the ZIS/PANI photoanode was demon-strated similar to 5 fold enhancement in the incident photon to current conversion efficiency (IPCE) than bare ZIS. The enhancement in the photodegradation and PEC water splitting activity of ZIS/PANI nanocomposite is ascribed to extended visible light absorption, and synergetic effect of PANI along with type-II heterojunction formation, which is beneficial for sepa-ration of charge and faster transfer efficiency of photogenerated charge carriers. This study demonstrates that establishing a heterostructure system by coupling a ternary chalco-genide semiconductor with a conducting polymer is effective for photocatalytic waste-water treatment and PEC water splitting applications. (c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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页码：2518 / 2531
页数：14
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