Solar light harvest: modified d-block metals in photocatalysis

2020 ◽  
Vol 10 (16) ◽  
pp. 5321-5344
Author(s):  
Williams Kweku Darkwah ◽  
Masso Kody Christelle Sandrine ◽  
Buanya Beryl Adormaa ◽  
Godfred Kwesi Teye ◽  
Joshua Buer Puplampu
Keyword(s):  
Chemical Stability ◽  
Low Cost ◽  
Solar Light ◽  
Photocatalytic Process

With solar light, modified d-block metal photocatalysts are useful in areas where electricity is insufficient, with its chemical stability during the photocatalytic process, and its low-cost and nontoxicity.

scholarly journals Graphene nanocrystals in CO2 photoreduction with H2O for fuel production

2020 ◽  
Vol 2 (3) ◽  
pp. 991-1006 ◽  
Author(s):  
Williams Kweku Darkwah ◽  
Godfred Kwesi Teye ◽  
Yanhui Ao
Keyword(s):  
Chemical Stability ◽  
Low Cost ◽  
Solar Light ◽  
Photocatalytic Process ◽  
Fuel Production ◽  
Co2 Photoreduction

Graphene nanocrystals can utilize solar light and are valuable in cases where electricity is lacking due to their chemical stability during the photocatalytic process, low cost and non-toxicity.

scholarly journals Titanium Nitride Nanodonuts Synthesized from Natural Ilmenite Ore as a Novel and Efficient Thermoplasmonic Material

Nanomaterials ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 76
Author(s):  
Thanh-Lieu Thi Le ◽  
Lam Tan Nguyen ◽  
Hoai-Hue Nguyen ◽  
Nguyen Van Nghia ◽  
Nguyen Minh Vuong ◽  
...  
Keyword(s):  
Titanium Nitride ◽  
Low Cost ◽  
Visible Region ◽  
Resonance Absorption ◽  
Solar Light ◽  
Localized Surface Plasmon ◽  
Water Evaporation ◽  
Energy Applications ◽  
Simulated Solar Light ◽  
New Class

Nanostructures of titanium nitride (TiN) have recently been considered as a new class of plasmonic materials that have been utilized in many solar energy applications. This work presents the synthesis of a novel nanostructure of TiN that has a nanodonut shape from natural ilmenite ore using a low-cost and bulk method. The TiN nanodonuts exhibit strong and spectrally broad localized surface plasmon resonance absorption in the visible region centered at 560 nm, which is well suited for thermoplasmonic applications as a nanoscale heat source. The heat generation is investigated by water evaporation experiments under simulated solar light, demonstrating excellent solar light harvesting performance of the nanodonut structure.

TiO2–rGO nanocomposite as an efficient catalyst to photodegrade formalin in aquaculture's waters, under solar light

2020 ◽  
Vol 6 (4) ◽  
pp. 1018-1027 ◽  
Author(s):  
Joana F. Leal ◽  
Sandra M. A. Cruz ◽  
Bernardo T. A. Almeida ◽  
Valdemar I. Esteves ◽  
Paula A. A. P. Marques ◽  
...  
Keyword(s):  
Solar Light ◽  
Photocatalytic Process ◽  
Efficient Catalyst

A solar photocatalytic process, using TiO2–rGO as photocatalyst, is proposed to degrade the formalin disinfectant. This process can treat aquaculture freshwater before its discharge or recirculation, promoting sustainable water.

A low-cost and reusable photothermal membrane for solar-light induced anti-bacterial regulation

2019 ◽  
Vol 7 (18) ◽  
pp. 2948-2953 ◽  
Author(s):  
Qianhao Pan ◽  
Shiming Zhang ◽  
Ruiting Li ◽  
Yonglin He ◽  
Yapei Wang
Keyword(s):  
Low Cost ◽  
Solar Light ◽  
Photothermal Conversion

In this work, a simple, low-cost, and applicable strategy for preparing membranes which allow photothermal conversion and have excellent anti-bacterial ability is proposed.

scholarly journals Design and Development of BRRI Solar Powered Light Trap

2021 ◽  
Vol 11 (2) ◽  
pp. 12-16
Author(s):  
Md Mizanur Rahman ◽  
◽  
Bidhan Chandra Nath ◽  
Subrato Paul ◽  
Md. Golam Kibria Bhuiyan ◽  
...  
Keyword(s):  
Low Cost ◽  
Light Trap ◽  
Ultra Violet ◽  
Stem Borer ◽  
Solar Panel ◽  
Solar Light ◽  
Yellow Stem Borer ◽  
Solar Intensity ◽  
Solar Powered ◽  
Main Component

This research intends to design, assemble and evaluate the performance of an eco-friendly solar light trap to reduce the insect population in rice fields as well as to minimize the use of harmful chemical pesticides. An AutoCAD drawing tool 2016 was used to sketch the design of solar light trap. The main component of this light trap was bulb, solar panel and battery. Design of solar panel and battery was done considering by 5W LED bulb. A total of five bulbs with different colors were selected to test the insect’s reaction by visible light. Study indicated that ultra violet-blue bulb showed the best performance compare to others based on the high percentage of insect trap (31.22%). A 20-watt solar panel and two 4.5 ah batteries of 6 volts were used to operate the solar light trap. The current, voltage, solar intensity was recorded to check overall performance of solar panel. The solar panel generated more power in April than May due to higher solar radiation in the study area. Study suggested that only 4.26 sunshine hours were required to full charge the battery. The solar light trap was operated 5.5 hour in night which was sufficient to reduce the insects in rice field. Moreover, the light sensor was showed 100% functional for ON/OFF purposes. The dominant insects like yellow stem borer (YSB), green leafhopper (GLH) were mostly observed. The average largest numbers of YSB and GLH were 900 and 600 respectively. In conclusion, the solar light trap is eco-friendly, low cost, easy and self-sufficient in term of solar energy. Finally, the newly developed light trap could be helpful for manufactures, decision makers, and engineering community as well as farmers as a best tool to protect nature in comparison to other pesticide using practices.

Molten state synthesis of nickel phosphides: mechanism and composition-activity correlation for electrochemical applications

2021 ◽  
Author(s):  
Rotem Geva ◽  
Natasha Ronith Levy ◽  
Jonathan Tzadikov ◽  
Reut Cohen ◽  
Michal Weitman ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Electronic Structure ◽  
Chemical Stability ◽  
Low Cost ◽  
Single Step ◽  
Molten State ◽  
Electrochemical Applications ◽  
Nickel Phosphides ◽  
Scalable Synthesis

Nickel phosphides are highly attractive low-cost (electro)catalysts, thanks to their unique electronic structure, versatile phase diagram, and chemical stability. Herein, we describe a single-step, simple, and scalable synthesis of nickel...

scholarly journals Using plasmons to harness infrared solar light

2021 ◽  
Vol 10 (1) ◽  
pp. 118-121
Author(s):  
Luis A. Pérez ◽  
Jinhui Hu ◽  
M. Isabel Alonso ◽  
Alejandro R. Goñi
Keyword(s):  
Surface Plasmons ◽  
Low Cost ◽  
Solar Light ◽  
Electronic Charge ◽  
Gold Films ◽  
Sound Waves ◽  
Absorption Performance ◽  
Scalable Methods ◽  
Nanostructured Metal ◽  
Ir Light

Using plasmons to harness infrared solar light The PLASMIONICO project aims to advance the sustainable production of electricity by harnessing infrared (IR) solar light, which is typically wasted in conventional solar cells. The key concept is to allow IR light to be absorbed at nanostructured metal cathodes to launch surface plasmons (rapid oscillations of electronic charge analogous to sound waves in liquids) to generate a photocurrent. Our strategy uses inverted silicon pyramid arrays covered with thin gold films, manufactured employing low-cost and scalable methods. After optimising the infrared absorption performance, we are set to improve photocurrent delivery with promising results.

scholarly journals Imidazolium-modification enables enhanced photocatalytic CO2 reduction on ZnSe quantum dots

2021 ◽  
Author(s):  
Constantin Sahm ◽  
Eric Mates-Torres ◽  
Nora Eliasson ◽  
Kamil Sokolowski ◽  
Andreas Wagner ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Low Cost ◽  
Co2 Reduction ◽  
Solar Light ◽  
Product Selectivity ◽  
Carbon Based

Colloidal photocatalysts are a promising, low-cost material to utilize solar light for the conversion of CO2 to carbon-based fuels, but controlling the product selectivity for CO2 reduction remains challenging, in...

Low Cost Graphene Oxide Modified Alumina Nanocomposite as Solar Light Induced Photocatalyst

2018 ◽  
Vol 1 (9) ◽  
pp. 4612-4621 ◽  
Author(s):  
Anum Iqbal ◽  
Shamaila Sajjad ◽  
Sajjad Ahmed Khan Leghari
Keyword(s):  
Graphene Oxide ◽  
Low Cost ◽  
Solar Light ◽  
Modified Alumina

scholarly journals A Self-Powered Wireless Water Quality Sensing Network Enabling Smart Monitoring of Biological and Chemical Stability in Supply Systems

Sensors ◽  
2020 ◽  
Vol 20 (4) ◽  
pp. 1125 ◽  
Author(s):  
Marco Carminati ◽  
Andrea Turolla ◽  
Lorenzo Mezzera ◽  
Michele Di Mauro ◽  
Marco Tizzoni ◽  
...  
Keyword(s):  
Chemical Stability ◽  
Low Cost ◽  
Monitoring Networks ◽  
Efficient Management ◽  
Processing Strategies ◽  
Management Processes ◽  
Direct Energy ◽  
Spatio Temporal ◽  
Self Powered ◽  
Supply Systems

A smart, safe, and efficient management of water is fundamental for both developed and developing countries. Several wireless sensor networks have been proposed for real-time monitoring of drinking water quantity and quality, both in the environment and in pipelines. However, surface fouling significantly affects the long-term reliability of pipes and sensors installed in-line. To address this relevant issue, we presented a multi-parameter sensing node embedding a miniaturized slime monitor able to estimate the micrometric thickness and type of slime. The measurement of thin deposits in pipes is descriptive of water biological and chemical stability and enables early warning functions, predictive maintenance, and more efficient management processes. After the description of the sensing node, the related electronics, and the data processing strategies, we presented the results of a two-month validation in the field of a three-node pilot network. Furthermore, self-powering by means of direct energy harvesting from the water flowing through the sensing node was also demonstrated. The robustness and low cost of this solution enable its upscaling to larger monitoring networks, paving the way to water monitoring with unprecedented spatio-temporal resolution.

Sign in / Sign up

Export Citation Format

Share Document