DataVXSmallPaper
journal article·2023-05

The Precision Defect Engineering with Nonmetallic Element Refilling Strategy in g‐C3N4 for Enhanced Photocatalytic Hydrogen Production

Yujie Liu, Muhammad Tayyab, Wenkai Pei, Liang Zhou, Juying Lei, Lingzhi Wang, Yongdi Liu, Jinlong Zhang

Small· Volume 19· Issue 21
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Source abstract

Abstract

Abstract Traditional defect engineering and doping strategies are considered effective means for improving H2 evolution, but the uncontrollability of the modification process does not always lead to efficient activity. A defect‐induced heteroatom refilling strategy is used here to synthesize heteroatoms introduced carbon nitride by precisely controlling the “introduction” sites on efficient N1 sites. Density functional theory calculations show that the refilling of B, P, and S sites have stronger H2O adsorption and dissociation capacity than traditional doping, which makes it an optimal H2 production path. The large internal electric field strength of heteroatom‐refilled catalysts leads to fast electron transfer and the hydrogen production of the best sample is up to 20.9 mmol g−1 h−1. This work provides a reliable and clear insight into controlled defect engineering of photocatalysts and a universal modification strategy for typical heteroatom and co‐catalyst systems for H2 production.
Source: crossref · Quality: baseline

Research context

Catalysis & surfaces

OpenAlex topics: Advanced Photocatalysis Techniques · Gas Sensing Nanomaterials and Sensors · MXene and MAX Phase Materials

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

Affiliations

Key Laboratory for Advanced Materials Shanghai Engineering Research Center for Multi media Environmental Catalysis and Resource Utilization 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 & Technology 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 School of Resources and Environmental Engineering East China University of Science & Technology Shanghai 200237 P. R. China

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

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China · Science and Technology Commission of Shanghai Municipality · Project 211

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