Photocatalytic nanomaterials for solar-driven bacterial inactivation: recent progress and challenges

2017 ◽  
Vol 4 (4) ◽  
pp. 782-799 ◽  
Author(s):  
Wanjun Wang ◽  
Guiying Li ◽  
Dehua Xia ◽  
Taicheng An ◽  
Huijun Zhao ◽  
...  
Keyword(s):  
Solar Energy ◽  
Recent Progress ◽  
Water Disinfection ◽  
Bacterial Inactivation ◽  
Research Attention

Nanostructured photocatalysts have attracted ever-growing research attention in the application of solar energy for water disinfection.

scholarly journals Photosensitive Hybrid Nanostructured Materials: The Big Challenges for Sunlight Capture

Catalysts ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 103 ◽  
Author(s):  
Giuseppina Luciani ◽  
Claudio Imparato ◽  
Giuseppe Vitiello
Keyword(s):  
Solar Energy ◽  
Nanostructured Materials ◽  
Co2 Reduction ◽  
Cost Effective ◽  
Future Research ◽  
Oxide Semiconductors ◽  
Research Attention ◽  
Inorganic Semiconductors ◽  
Solar Energy Harvesting ◽  
Metal Organic

Solar radiation is becoming increasingly appreciated because of its influence on living matter and the feasibility of its application for a variety of purposes. It is an available and everlasting natural source of energy, rapidly gaining ground as a supplement and alternative to the nonrenewable energy feedstock. Actually, an increasing interest is involved in the development of efficient materials as the core of photocatalytic and photothermal processes, allowing solar energy harvesting and conversion for many technological applications, including hydrogen production, CO2 reduction, pollutants degradation, as well as organic syntheses. Particularly, photosensitive nanostructured hybrid materials synthesized coupling inorganic semiconductors with organic compounds, and polymers or carbon-based materials are attracting ever-growing research attention since their peculiar properties overcome several limitations of photocatalytic semiconductors through different approaches, including dye or charge transfer complex sensitization and heterostructures formation. The aim of this review was to describe the most promising recent advances in the field of hybrid nanostructured materials for sunlight capture and solar energy exploitation by photocatalytic processes. Beside diverse materials based on metal oxide semiconductors, emerging photoactive systems, such as metal-organic frameworks (MOFs) and hybrid perovskites, were discussed. Finally, future research opportunities and challenges associated with the design and development of highly efficient and cost-effective photosensitive nanomaterials for technological claims were outlined.

scholarly journals Understanding memristive switching via in situ characterization and device modeling

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Wen Sun ◽  
Bin Gao ◽  
Miaofang Chi ◽  
Qiangfei Xia ◽  
J. Joshua Yang ◽  
...  
Keyword(s):  
Recent Progress ◽  
Device Modeling ◽  
Device Performance ◽  
Unconventional Computing ◽  
Large Parameter ◽  
In Situ Characterization ◽  
Research Attention ◽  
Non Volatile Memory ◽  
Synergistic Approach

Abstract Owing to their attractive application potentials in both non-volatile memory and unconventional computing, memristive devices have drawn substantial research attention in the last decade. However, major roadblocks still remain in device performance, especially concerning relatively large parameter variability and limited cycling endurance. The response of the active region in the device within and between switching cycles plays the dominating role, yet the microscopic details remain elusive. This Review summarizes recent progress in scientific understanding of the physical origins of the non-idealities and propose a synergistic approach based on in situ characterization and device modeling to investigate switching mechanism. At last, the Review offers an outlook for commercialization viability of memristive technology.

Plasmonic nanostructures in solar energy conversion

2017 ◽  
Vol 5 (5) ◽  
pp. 1008-1021 ◽  
Author(s):  
Wei Ye ◽  
Ran Long ◽  
Hao Huang ◽  
Yujie Xiong
Keyword(s):  
Solar Energy ◽  
Energy Conversion ◽  
Recent Progress ◽  
Solar Energy Conversion ◽  
Plasmonic Nanostructures

This review outlines the recent progress on the integration of plasmonic nanostructures with photocatalysis and photovoltaics toward solar energy conversion.

scholarly journals Advanced Oxidation Process Based Water Disinfection- the Microbiology Beyond Bacterial Inactivation

2020 ◽  
Author(s):  
Habeeb Rahman A.P ◽  
Amrita Mishra ◽  
Cecilia Stålsby Lundborg ◽  
Suraj Kumar Tripathy
Keyword(s):  
Advanced Oxidation Process ◽  
Advanced Oxidation ◽  
Vital Role ◽  
Water Disinfection ◽  
Resistant Bacteria ◽  
Successful Implementation ◽  
Bacterial Inactivation ◽  
Bacterial Survival ◽  
Bacterial Adaptation ◽  
Hostile Environments

Different water treatment regiments are revealed to have potential in enriching antibiotic resistant bacteria (ARB). Advanced oxidation processes (AOPs) based disinfection techniques have been studied widely in the recent times due to their advantages over conventional treatment methods. However, bacterial response and adaptations against the hostile environments of AOPs is not clearly understood yet. Based on the existing knowledge on the ways in which bacteria surpass the antibiotic treatment, here we propose few important aspects of bacterial adaptation which could be true for AOPs as well since both antibiotics and AOPs generate reactive oxygen species (ROS) during their modes of action. We discuss the plausible role of ROS in the selection of ARB and bacterial heterogeneity as a strategy to bypass the lethal action of AOPs. Understanding bacterial adaptation during disinfection plays a vital role in devising strategies to outclass the bacterial survival. Hence, more importance should be given to such studies in the near future for the successful implementation of AOPs.

scholarly journals Genome editing for horticultural crop improvement

2019 ◽  
Vol 6 (1) ◽  
Author(s):  
Jiemeng Xu ◽  
Kai Hua ◽  
Zhaobo Lang
Keyword(s):  
Genome Editing ◽  
Crop Production ◽  
Recent Progress ◽  
Crop Improvement ◽  
Horticultural Crop ◽  
Research Attention ◽  
Horticultural Crops ◽  
Yield And Quality ◽  
Horticultural Research

Abstract Horticultural crops provide humans with many valuable products. The improvement of the yield and quality of horticultural crops has been receiving increasing research attention. Given the development and advantages of genome-editing technologies, research that uses genome editing to improve horticultural crops has substantially increased in recent years. Here, we briefly review the different genome-editing systems used in horticultural research with a focus on clustered regularly interspaced palindromic repeats (CRISPR)/CRISPR-associated 9 (Cas9)-mediated genome editing. We also summarize recent progress in the application of genome editing for horticultural crop improvement. The combination of rapidly advancing genome-editing technology with breeding will greatly increase horticultural crop production and quality.

Triplet–triplet annihilation photon-upconversion: towards solar energy applications

2014 ◽  
Vol 16 (22) ◽  
pp. 10345-10352 ◽  
Author(s):  
Victor Gray ◽  
Damir Dzebo ◽  
Maria Abrahamsson ◽  
Bo Albinsson ◽  
Kasper Moth-Poulsen
Keyword(s):  
Solar Energy ◽  
Recent Progress ◽  
Energy Applications ◽  
Annihilation Photon ◽  
Triplet Triplet Annihilation

This perspective discusses recent progress in photon upconversion systems and devices for solar energy applications.

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