Going beyond efficiency for solar evaporation

Nature Water, Journal Year: 2023, Volume and Issue: 1(6), P. 494 - 501

Published: May 29, 2023

Language: Английский

---

Engineering Metal–Phenolic Networks for Solar Desalination with Directional Salt Crystallization

Advanced Materials, Journal Year: 2022, Volume and Issue: 35(1)

Published: Oct. 17, 2022

Solar desalination is one of the most promising strategies to address global freshwater shortage crisis. However, residual salt accumulated on top surface solar evaporators severely reduces light absorption and steam evaporation efficiency, thus impeding further industrialization this technology. Herein, a metal-phenolic network (MPN)-engineered 3D evaporator composed photothermal superhydrophilic/superhydrophobic sponges side-twining hydrophilic threads for efficient with directional crystallization zero liquid discharge reported. The MPN coatings afford engineering alternating high heating efficiency defined vapor escape channels, while induce site-selective crystallization. exhibits stable indoor rate (≈2.3 kg m-2 h-1 ) concentrated seawater (20 wt%) under simulated sun irradiation over 21 days without need inhibitors. This direct also achieved in outdoor field operations production clean water up ≈1.82 from (10 wt%). Together affinity multiple functions MPNs, work expected facilitate rational design devices boost research translation materials broader applications.

Language: Английский

---

Low‐Cost, Unsinkable, and Highly Efficient Solar Evaporators Based on Coating MWCNTs on Nonwovens with Unidirectional Water‐Transfer

Advanced Science, Journal Year: 2021, Volume and Issue: 8(19)

Published: Aug. 11, 2021

Solar vapor generation technology is promising in seawater desalination, sewage purification, and other fields. However, wide application of this still largely confined due to its high cost difficulties for scalable production. In study, an ever-floating solar evaporator fabricated by coating multiwall carbon nanotubes on a bicomponent nonwoven composed polypropylene/polyethylene core-sheath fibers. This all-fiber structure highly porous ultralight, with large specific area (for efficient water evaporation), interconnected channels easy escape), low thermal conductivity (to avoid heat loss). The unique unidirectional water-transfer behavior the enables it spontaneously pump adjustable amount interfacial heating delicate balance between supply loss may accelerate evaporation speed water. These distinct benefits endow excellent rates 1.44 kg m-2 h-1 under simulated irradiation 1 sun 12.81 d-1 natural sunlight. Moreover, can be using low-cost materials industrialized methods (overall ≈2.4 USD ), making one believe practical significance commercial steam evaporation.

Language: Английский

---

Recent Advances in Fibrous Materials for Interfacial Solar Steam Generation

Advanced Fiber Materials, Journal Year: 2022, Volume and Issue: 5(3), P. 791 - 818

Published: Nov. 23, 2022

Language: Английский

---

Designing high-efficiency light-to-thermal conversion materials for solar desalination and photothermal catalysis

Journal of Energy Chemistry, Journal Year: 2023, Volume and Issue: 79, P. 581 - 600

Published: Jan. 23, 2023

Language: Английский

---

Solar-driven interfacial evaporation: Design and application progress of structural evaporators and functional distillers

Nano Energy, Journal Year: 2022, Volume and Issue: 108, P. 108115 - 108115

Published: Dec. 21, 2022

Language: Английский

---

A Multiscale Porous 3D‐Fabric Evaporator with Vertically Aligned Yarns Enables Ultra‐Efficient and Continuous Water Desalination

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(40)

Published: Aug. 3, 2022

Abstract Solar steam generation has emerged as an environment‐friendly and promising strategy to overcome the freshwater energy crisis. However, simultaneously attaining satisfied evaporation rate, durability utilization in a single system is challengeable, but crucial practical application. Herein, inspired by carpet weaving technique benefiting from “fiber–yarn–fabric” hierarchical structures, 3D fabric evaporator with vertical hemp‐yarn arrays innovatively constructed, featuring combined structure of multiscale pores tunable spacing between adjacent fibers or yarns, vertically aligned architecture coated superhydrophilic MXene‐sandwiched layer adjustable side height/areas. These structures work cooperatively, surprisingly achieving integrated functions excellent light capture, balanced area vapor escape space, additional adsorption environment salt exchange along micro/macro pores. Consequently, exhibits outstanding rate (3.95 kg m −2 h −1 under one‐sun illumination) extremely high outdoor (47.04 for 8 h), accompanied salt‐resistance (continuous 120 14% brine without accumulation), anti‐oilfouling anti‐bacterial (efficiency over 99.9%) performances. Finally, through rationally assembling multi‐function modules condenser, all‐in‐one “desalination–thermoelectricity–irrigation” platform built, realizing maximum condensation enthalpy.

Language: Английский

---

Solar-driven interfacial evaporation for water treatment: advanced research progress and challenges

Journal of Materials Chemistry A, Journal Year: 2022, Volume and Issue: 10(36), P. 18470 - 18489

Published: Jan. 1, 2022

Solar-driven interface evaporation, with photothermal materials as the core component, has an excellent seawater desalination effect and potential application prospect in field of water treatment.

Language: Английский

---

Cellulose‐based Interfacial Solar Evaporators: Structural Regulation and Performance Manipulation

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(36)

Published: May 15, 2023

Abstract The shortage of freshwater resources has become a major obstacle threatening human development, and directly utilizing solar energy by evaporators is emerging as promising method to produce from the seawater. Compared many synthetic polymer‐based evaporators, cellulose‐based are expected offer more interesting features benefiting renewable feature abundant reserves cellulose‐contained naturally occurring materials. First, according different fabrication methods, can be divided into two types, i.e., top‐down utilization (wood‐based) bottom‐up assembled (cellulose composite‐based), respectively. schemes also bring their own unique advantages, such bimodal porous structure wood‐based artificial interconnection microporous network cellulose composite‐based evaporators. Subsequently, this review further summarizes most recent advances highlights those focusing on structural regulation strategies (e.g., drilled channel array, asymmetric wettability structure, delignification, 2D waterway, etc.) evaporation performance improvements salt resistance, high rate, etc.). Finally, challenges in field potential solutions discussed, which anticipated provide new opportunities toward future development other kinds biomass‐based

Language: Английский

---

A polyelectrolyte hydrogel coated loofah sponge evaporator based on Donnan effect for highly efficient solar-driven desalination

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 462, P. 142265 - 142265

Published: March 5, 2023

Language: Английский

---