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

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.

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 ◽  
...  

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.


1980 ◽  
Vol 3 (4) ◽  
pp. 519-532 ◽  
Author(s):  
S.N. Kumar ◽  
L.K. Malhotra ◽  
K.L. Chopra

Author(s):  
Md Mizanur Rahman ◽  
◽  
Bidhan Chandra Nath ◽  
Subrato Paul ◽  
Md. Golam Kibria Bhuiyan ◽  
...  

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.


Solar Energy ◽  
2018 ◽  
Vol 170 ◽  
pp. 586-593 ◽  
Author(s):  
Xinzhi Wang ◽  
Yurong He ◽  
Yanwei Hu ◽  
Guangri Jin ◽  
Baocheng Jiang ◽  
...  

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

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.


RSC Advances ◽  
2016 ◽  
Vol 6 (112) ◽  
pp. 110566-110570 ◽  
Author(s):  
Oruganti Anjaneyulu ◽  
Satoshi Ishii ◽  
Tsubasa Imai ◽  
Toyokazu Tanabe ◽  
Shigenori Ueda ◽  
...  

Titanium-nitride (TiN) nanocubes were decorated with platinum nanoparticles via a wet-chemistry route to yield TiN-supported Pt catalysts (Pt/TiN).


2019 ◽  
Vol 58 (1) ◽  
pp. 226-247 ◽  
Author(s):  
You Xu ◽  
Jiacheng Yin ◽  
Jun Wang ◽  
Xianbao Wang

AbstractSolar steam generation with low-cost and excellent energy efficiency is of great significance for alleviating an energy crisis, reducing water pollution and promoting seawater desalination. However, there are still numerous challenges for solar steam generation system to practical energy utilization. In this review, based on our previous research, we summarize various methods of solar steam generation, photothermal conversion mechanism and efficiency. We studied a series of effecting factors for solar steam generation. Our systematic investigation provided a clearer understanding of how to design and optimize the photothermal conversion system to improve the steam generation rate and energy conversion rate, including improving light absorption, reducing heat loss, and optimizing water supply. This article aims to make a comprehensive review of present solar steam technology, so that people can better apply photothermal conversion technology. Meanwhile, it also provides a route for the selection of photothermal materials, the design and optimization of the photothermal conversion system.


2021 ◽  
Vol 11 ◽  
Author(s):  
Yun Zhou ◽  
Bixia Lin ◽  
Kai Li ◽  
Yufeng Zhao ◽  
Zhuo Sun ◽  
...  

At present, the clinical diagnosis of and treatment methods for hepatic carcinoma still fail to fully meet the needs of patients. The integrated theranostic system, in which functional materials are used to load different active molecules, created a new developmental direction for the combination treatment of hepatic carcinoma, realizing the synchronization of diagnosis and treatment. In this study, polydopamine (PDA), which has the functions of self-assembly, encapsulation, photothermal conversion, and photoacoustic interaction, was used as the carrier material. The IR780, a near-infrared fluorescence imaging (NIFI), photoacoustic imaging (PAI), and photothermal therapy (PTT) agent, and paclitaxel (PTX), a broad-spectrum chemotherapy drug, were selected to build the NIF/PA dual-mode imaging and PTT/chemo synergistic theranostic nanoparticles (DIST NPs). The DIST NPs have a 103.4 ± 13.3 nm particle size, a weak negative charge on the surface, good colloidal stability, slow and controlled drug release, and high photothermal conversion ability. The experiments results showed that the DIST NPs have a long circulation in vivo, high bioavailability, high biocompatibility, and low effective dose. DIST NPs showed an excellent NIFI/PAI dual-mode imaging and significant synergistic antitumor effect in hepatic carcinoma models. DIST NPs met the initial design requirements. A set of fast and low-cost preparation methods was established. This study provides an experimental basis for the development of new clinical theranostic methods for hepatic carcinoma.


2021 ◽  
Vol 10 (1) ◽  
pp. 118-121
Author(s):  
Luis A. Pérez ◽  
Jinhui Hu ◽  
M. Isabel Alonso ◽  
Alejandro R. Goñi

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.


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