Preparation Strategies of p-Type Cuprous Oxide and Its Solar Energy Conversion Performance

Abstract

As a representative intrinsic p-type inorganic semiconductor material, cuprous oxide (Cu 2 O) has been widely used in photovoltaics, catalysis, chemical industries, and other fields, owning an extremely important position. For a long time, the literature on the preparation methods and preparation technologies of Cu 2 O have been relatively scattered and independent, resulting in a certain degree of obstacles and difficulty in obtaining relevant technical knowledge and understanding the internal principles. Aiming at the progress and innovation of Cu 2 O preparation methods and technologies in recent years, combined with our team's long-term experience accumulation and research results, this article focuses on the classification, principles, and characteristics of the various Cu 2 O preparation methods and also involves representative applications and performance in the light energy utilization area. This review aims to provide reference and guidance for the preparation and research of Cu 2 O and other related inorganic oxide semiconductors.

Localized Surface Plasmon Resonance Enhanced Continuous Flow Photoelectrocatalytic CO2 Conversion to CO

“…Continuous exploitation of fossil fuels has raised global carbon dioxide concentrations for centuries, leading to serious environmental problems such as climate change and global warming. , Photoelectrocatalytic carbon dioxide reduction seems to be an effective means to solve the problems, and it can also convert CO 2 into high value-added carbon-based fuels or chemical products (such as carbon monoxide, formic acid, methanol, ethylene, propane alcohol), which is an effective way to achieve a clean and low-carbon energy transformation. , Thus far, in the area of photoelectrochemical CO 2 reduction, the H-cell reactor has still been the most common reactor. , This reactor is uncomplicated to assemble and operate and can intuitively reflect the intrinsic characters of the catalyst. Consequently, it is suitable for rapid evaluation and screening of catalytic materials .…”

Construction of WSe2/In2S3 heterojunction for boosted photocatalytic performance for the degradation of methylene blue under visible light

“…Phenols, cyanide, antibiotics and various chemicals released from coking, plating and biotechnology are major water contaminants presenting risks 3 . At present, sunlight‐driven semiconductor photocatalysis is a ‘green’ and promising environmental remediation technology 4‐7 . One of the main goals in this field is to develop high‐efficiency photocatalytic materials 8,9 .…”

“…One of the main goals in this field is to develop high‐efficiency photocatalytic materials 8,9 . Owing to improved light absorption and charge separation, heterojunction fabrication has been an attractive research hotspot and widely studied in the field of high‐efficiency solar light conversion 6,10,11 . In particular, type II heterostructure photocatalyst systems have been extensively investigated because of their ability to separate electron and hole transfer pathways, which could improve charge carriers’ separation efficiency and extend electron lifetimes, so as to greatly improve photocatalytic activity 12‐14 .…”

“…3 At present, sunlight-driven semiconductor photocatalysis is a 'green' and promising environmental remediation technology. [4][5][6][7] One of the main goals in this field is to develop high-efficiency photocatalytic materials. 8,9 Owing to improved light absorption and charge separation, heterojunction fabrication has been an attractive research hotspot and widely studied in the field of high-efficiency solar light conversion.…”

“…8,9 Owing to improved light absorption and charge separation, heterojunction fabrication has been an attractive research hotspot and widely studied in the field of high-efficiency solar light conversion. 6,10,11 In particular, type II heterostructure photocatalyst systems have been extensively investigated because of their ability to separate electron and hole transfer pathways, which could improve charge carriers' separation efficiency and extend electron lifetimes, so as to greatly improve photocatalytic activity. [12][13][14] In addition, calcination, solvothermal and in situ crystallization methods are usually used to form chemical-bond contact between two semiconductors, which is conducive to the separation of photoexcited electrons and holes, 15,16 respectively.…”