Results 161 to 170 of about 103,942 (331)

High‐Performance Solar‐Thermal Hydrogel Based on Waste Biomass Materials for Power Generation and Water Purification

open access: yesEcoEnergy, EarlyView.
An environmentally friendly and highly efficient solar evaporator was constructed using waste biomass materials and polyvinyl alcohol carrier, which achieves an outstanding evaporation rate of 1.48 kg m−2 h−1, corresponding to an energy conversion efficiency of 82.49% under 1.0 kW m−2 simulated sunlight irradiation.
Shuo Qi   +10 more
wiley   +1 more source

Biomass‐Derived Transparent Bamboo Composite Films with Europium‐Based Photoconversion for Energy‐Efficient Smart Agriculture

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A biomass‐based transparent bamboo composite doped with europium efficiently converts UV light into photosynthetically active red light, significantly enhancing plant growth and providing a sustainable alternative to petroleum‐based agricultural films. The rational design of sustainable light‐conversion agricultural materials is critical for enhancing ...
Dandan Xu   +8 more
wiley   +1 more source

Elucidating the Charge‐Separation and Oxidation Dynamics in Fluorenone‐COF/CdS S‐Scheme Heterojunction for Photocatalytic Benzaldehyde and Hydrogen Production

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The novel S‐scheme heterojunction, constructed by combining 1D CdS with 2D Fluorenone‐COF as the oxidation end, is designed for the efficient photocatalytic coupling of hydrogen evolution with benzyl alcohol oxidation. This design achieves the effective separation and mobility of photoinduced charge carriers, a low reaction energy barrier, and reduced ...
Boning Feng   +6 more
wiley   +1 more source

Concave microlens arrays with tunable curvature for enhanced photodegradation of organic pollutants in water: A non‐contact approach

open access: yesEcoMat
Solar‐driven photodegradation for water treatment faces challenges such as low energy conversion rates, high maintenance costs, and over‐sensitivity to the environment. In this study, we develop reusable concave microlens arrays (MLAs) for more efficient
Qiuyun Lu   +5 more
doaj   +1 more source

No Charging but Protection: Lifetime Prolongation of Spontaneously‐polarized Electrets for Energy Harvesting Applications

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A bilayer protection approach is proposed for slowing down the surface potential decay of thin films of spontaneously‐polarized electret materials. The electret and the protective films are characterized, and the protection effectiveness is investigated under the effects of light illumination, water contact and mechanical impact.
Seyedali Sabzpoushan   +2 more
wiley   +1 more source

Boosting Photocatalytic H2O2 Synthesis Over HKUST‐1 MOFs‐Derived Hollow HKUST‐1@CuFePBA@CuS Heterojunctions

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Photoelectron transfer mechanism and photocatalytic O2‐to‐H2O2 reduction process over hollow HS@CuFe@CuS heterojunction photocatalysts. Recently, photocatalytic synthesis of H2O2 has received much attention. However, the photocatalytic activity of photocatalysts is generally limited due to multiple factors, such as insufficiency of photoelectrons, low ...
Xiao Mu   +6 more
wiley   +1 more source

Rational Design of CdS QDs/CeO2 Nanocube S‐Scheme Heterojunctions for Highly Efficient C2H4 Scavenging in Fresh Produce Preservation

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A novel S‐scheme heterojunction of CdS quantum dots on CeO2 nanocubes was designed to enhance charge separation and oxygen activation for efficient photocatalytic ethylene removal. The optimized composite achieved complete C2H4 degradation within 4 min under low‐intensity visible light, with a rate constant of 1.72 min−1. Mechanistic analysis confirmed
Zining Xu   +7 more
wiley   +1 more source

Thermochromic Radiative Cooling Coatings with Robust Superhydrophobicity for Energy‐Efficient Buildings

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A scalable, color‐adaptive radiative cooling coating is developed to enable dynamic spectral regulation via a reversible thermochromic transition at ~45 °C and a high solar reflectance of 91.7%. The coating achieves 4.44 °C outdoor sub‐ambient cooling while providing robust superhydrophobicity and environmental durability through its micro/nano ...
Ziqi Li   +8 more
wiley   +1 more source

Reliability and Degradation Mechanisms of Photovoltaic Modules in Pakistan

open access: yesEnergy Science &Engineering, EarlyView.
Reliability of the PV module. ABSTRACT The number of photovoltaic (PV) installations has grown rapidly in the last 10 years in Pakistan due to the growing electricity demand, the availability of favourable solar resources, and the national renewable energy objectives.
Zafar Ullah Khan   +2 more
wiley   +1 more source

Recent Advances in Conjugated Microporous Polymers for Photocatalysis: Mechanism, Synthesis and Applications

open access: yesExploration, EarlyView.
Conjugated microporous polymers (CMPs) have attracted more and more attention as new photocatalysts due to their unique advantages such as high performance, long stability and strong light absorption. This review summarizes the application of CMPs as a photocatalyst in recent years and introduces the catalytic mechanism.
Dun Zhou   +5 more
wiley   +1 more source

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