DataVXACS Applied Nano MaterialsPaper
journal article·2024-02-23

Polydopamine-Loaded ZnIn2S4 Photocatalyst for H2O2 Production in Water

Song Huang, Jianyu Gao, Liang Zhou, Juying Lei, Lingzhi Wang, Yongdi Liu, Jinlong Zhang

ACS Applied Nano Materials· Volume 7· Issue 4
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Source abstract

Abstract

Reasonably utilizing solar energy to synthesize hydrogen peroxide (H 2 O 2 ) from oxygen and water is a promising and sustainable solution. In this work, we constructed an S-scheme photocatalyst ZnIn 2 S 4 /PDA (ZIS/PDA) by loading polydopamine (PDA) on the surface of ZnIn 2 S 4, which significantly enhanced the separation and transfer of photogenerated charge carriers while retaining excellent oxidation and reduction abilities and exhibited outstanding H 2 O 2 production performance (1747 μmol·g –1 ·h –1 ) under visible light in pure water, which is 39 times the yield of pure ZnIn 2 S 4 . The presence of PDA coating enhanced the adsorption capacity of catalysts for oxygen and improved the selectivity of the direct two-electron oxygen reduction reaction (2e – ORR) and formation rate by effectively reducing the Gibbs free energy (Δ G ) of *OOH. In addition, ZIS/PDA significantly inhibited the decomposition of H 2 O 2 by promoting the rapid desorption of H 2 O 2, which is conducive to the stable accumulation of H 2 O 2 . In summary, the innovative ZIS/PDA photocatalyst demonstrates remarkable efficiency in H 2 O 2 production, offering a potential solution for the sustainable energy synthesis.
Source: openalex_inverted_index · Quality: baseline

Research context

Catalysis & surfaces

OpenAlex topics: Advanced Photocatalysis Techniques · Gas Sensing Nanomaterials and Sensors · Copper-based nanomaterials and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China

National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China

Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, P. R. China

Shanghai Engineering Research Center for Multi-media Environmental Catalysis and Resource Utilization, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China

Funding

National Key Research and Development Program of China · Science and Technology Commission of Shanghai Municipality · Fundamental Research Funds for the Central Universities · National Natural Science Foundation of China

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