Preparation and application of sunlight absorbing ultra-black carbon aerogel/graphene oxide membrane for solar steam generation systems

Abstract

The sunlight absorbing membrane consisting of ultra-black resorcinol-formaldehyde (RF)-based carbon aerogel (CA) and graphene oxide (GO) suspension was fabricated. The hydrophilic modified copper foam (MCF) was prepared and used as the substrate.

A Sandwich Structure Ag/MgFe2O4‐Deposited Surface Carbonized Wood for Integrated Solar Steam Generation and Photoreduction of Cr(VI)

“…As a type of renewable clean energy, solar energy is extensively exploited in photovoltaic, photocatalytic, and photothermal production. [5][6][7] Among them, solar-driven steam generation (SSG) is particularly promising for applications in wastewater purification, desalination, power generation, liquidliquid phase separation, etc. [8][9][10] Currently, a freshwater evaporation process in the seawater-air interface is achieved through the absorption of the broad-spectrum solar energy and its conversion to thermal energy by means of an SSG device, which is considered a promising zero emission technology to alleviate freshwater scarcity issue due to simplicity and high efficiency.…”

A Facile Approach to Fabricate Sustainable and Large-Scale Photothermal Polydopamine-Coated Cotton Fabrics for Efficient Interfacial Solar Steam Generation

“…1−4 Compared with traditional SSG, the key mechanism of ISSG is to confine the heat, converted from solar energy through the photothermal materials, at the water−air surface to enhance the temperature of surface water and accelerate the water evaporation to generate steam, which is then condensed to form freshwater via water collectors. 5−7 Recently, many kinds of photothermal materials with high light absorption performance have been employed as solar evaporators in ISSG, for instance, carbon black (CB), 8,9 carbon nanotubes (CNT), 10,11 graphene, 12,13 graphene oxide (GO), 14,15 reduced graphene oxide (rGO), 16,17 polypyrrole (PPy), 18,19 noble metal nanoparticles, 20,21 and Ti 3 C 2 -MXene. 22,23 Solar evaporators comprised with only the photothermal materials often suffer from many issues, such as dramatic heat loss due to high thermal conductivity, insufficient water supply because of poor hydrophilicity, and ultrahigh manufacturing cost, which significantly limit the large-scale fabrication of solar evaporators.…”

“…Employing solar energy as the energy source, interfacial solar steam generation (ISSG) developed in recent years is regarded as a green, low-cost, and environment-friendly desalination and wastewater treatment technology to meet the ever-growing need for freshwater at minimal energy consumption. − Compared with traditional SSG, the key mechanism of ISSG is to confine the heat, converted from solar energy through the photothermal materials, at the water–air surface to enhance the temperature of surface water and accelerate the water evaporation to generate steam, which is then condensed to form freshwater via water collectors. − Recently, many kinds of photothermal materials with high light absorption performance have been employed as solar evaporators in ISSG, for instance, carbon black (CB), , carbon nanotubes (CNT), , graphene, , graphene oxide (GO), , reduced graphene oxide (rGO), , polypyrrole (PPy), , noble metal nanoparticles, , and Ti 3 C 2 -MXene. , …”

Bayberry tannin directed assembly of a bifunctional graphene aerogel for simultaneous solar steam generation and marine uranium extraction

“…Graphene aerogel (GA) has inherent interworking porous structure, which is suitable as the substrate of bayberry tannin. Moreover, graphene has been extensively studied for its excellent photothermal conversion ability [23][24][25][26] . Its aerogel structure provides a wicking channel for water supply, facilitates steam escape, and plays a role of thermal insulation 27,28 , which is one of the most promising structures for SSG.…”