Efficient piezo-catalytic hydrogen peroxide production from water and oxygen over graphitic carbon nitride

Abstract

Efficient H2O2 production directly from water and oxygen via a piezo-catalytic process.

Piezocatalysis and Piezo‐Photocatalysis: Catalysts Classification and Modification Strategy, Reaction Mechanism, and Practical Application

“…More accurately, Au or Ag deposition under ultrasonic proved the existing of polarization along [001] direction, as the metals were found to be distributed on the edges of Mo 2 S or g-C 3 N 4 . [95,96] As a single element layered material, black phosphorus has been intensely investigated as an efficient photocatalyst and electrocatalyst. It has a highly anisotropic electronic structure with a high piezoelectric [70] Copyright 2018, Materials Research Society.…”

The Mechanism of Piezocatalysis: Energy Band Theory or Screening Charge Effect?

“…In addition to the auxiliary role that piezopotential plays in piezo‐photocatalysis, piezocatalysis based on the piezoelectric effect alone nowadays demonstrates high‐efficiency in organic synthesis, bio‐applications, water remediation, and small‐molecule catalysis such as the oxygen reduction reaction (ORR), [10] water splitting, [8a] and CO 2 reduction [11] . In these systems, piezoelectric materials with various morphologies, such as discrete powders or 2D films, are dispersed and subjected to external mechanical excitation to trigger the chemical reactions.…”

Mesoporous resin nanobowls with optimized donor-acceptor conjugation for highly efficient photocatalytic hydrogen peroxide production

“…Great efforts have been devoted to designing promising photocatalysts, which is the key in determining the H2O2 production performance. Recent studies have demonstrated that metalfree photocatalysts such as graphitic carbon nitrides [9][10][11][12], covalent triazine frameworks [13], polymer-supported carbon dots [14] and graphene oxides [15] are promising photocatalysts for H2O2 production compared to inorganic metal-based photocatalysts [13]. However, metal-free photocatalysts generally possess wide bandgaps and respond to a limited region of the solar spectrum (< 460 nm) [16][17][18].…”