Facile one-pot synthesis of heterostructure SnO₂/ZnO photocatalyst for enhanced photocatalytic degradation of organic dye

Abstract

In this work, heterostructure SnO2/ZnO nanocomposite photocatalyst was prepared by a straightforward one step polyol method.

Photocatalytic Degradation of Deoxynivalenol Using Cerium Doped Titanium Dioxide under Ultraviolet Light Irradiation

“…Under general conditions, photogenerated electrons-hole carriers are easily inclined to recombine, resulting in only a small part of the electrons involved in the catalytic degradation process [ 37 ]. The band position of doped samples is mainly calculated by the following formulas [ 38 ]: E VB = χ − E e + 0.5 E g E CB = χ − E e − 0.5 E g where E VB , E CB , χ and the E g are the VB edge potential, CB edge potential, Sanderson electronegativity and the band gap of the photocatalysts. The value of χ for TiO 2 is 5.81 eV, and E e represents the free electron energy on the hydrogen scale, with a value of 4.5 eV.…”

“…Under general conditions, photogenerated electrons-hole carriers are easily inclined to recombine, resulting in only a small part of the electrons involved in the catalytic degradation process [37]. The band position of doped samples is mainly calculated by the following formulas [38]:…”

Strategies to Enhance ZnO Photocatalyst's Performance for Water Treatment: A Comprehensive Review

“…ZnO−TiO 2 is type II heterojunction as CB of ZnO is a bit higher than CB of TiO 2 and VB of TiO 2 is a bit lower than ZnO that lead to transfer of photogenerated electrons from CB of ZnO to CB of TiO 2 and the photogenerated holes to the CB of ZnO leading to a remarkable charge carrier separation and thus enhancing the photocatalytic degradation [140–142] . ZnO‐SnO 2 heterojunction was reported as another efficient photocatalyst for organic pollutant degradation [143] . The band positions of ZnO and SnO 2 are type II heterojunctions.…”

Potential Application of Perovskite Glass Material in Photocatalysis Field

“…Some semiconductors, including titanium dioxide, zinc oxide, tin disulfide, and so on, have been widely used in clean energy collection to solve the environmental pollutant crisis. 4,6,7 Beyond that, a semiconductor QDs possess an adjustable band gap, narrow band emission, and high photoluminescence (PL) efficiency and, as a promising advanced material, shows great advantages in photoelectric applications. Besides, the desirable light-trapping ability and light induced electron transfer capability also made it a promising candidate in the field of environmental applications.…”

“…Photocatalysis is the significant research of using sunlight and converting it into chemical energy for environmental water degradation. , Semiconductor materials have received much consideration due to their excellent electronic, optical, and chemical properties in various applications such as sensing, catalysis, and solar cells. − So far, much investigation effort has been made to develop light-driven semiconductor photocatalysts to treat the various environmental garbage. Some semiconductors, including titanium dioxide, zinc oxide, tin disulfide, and so on, have been widely used in clean energy collection to solve the environmental pollutant crisis. ,, Beyond that, a semiconductor QDs possess an adjustable band gap, narrow band emission, and high photoluminescence (PL) efficiency and, as a promising advanced material, shows great advantages in photoelectric applications. Besides, the desirable light-trapping ability and light induced electron transfer capability also made it a promising candidate in the field of environmental applications. , …”