scholarly journals Potential Applications for Solar Photocatalysis: From Environmental Remediation to Energy Conversion

10.5772/34849 ◽  
2012 ◽  
Author(s):  
Antonio Eduardo Hora Machado ◽  
Lidiaine Maria dos Santos ◽  
Karen Arajo ◽  
Paulo dos Santos Batista ◽  
Vinicius Alexandre Borges de Paiva ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Environmental Remediation ◽  
Solar Photocatalysis ◽  
Potential Applications

A peek in the micro-sized world: a review of design principles, engineering tools, and applications of engineered microbial community

2020 ◽  
Vol 48 (2) ◽  
pp. 399-409
Author(s):  
Baizhen Gao ◽  
Rushant Sabnis ◽  
Tommaso Costantini ◽  
Robert Jinkerson ◽  
Qing Sun
Keyword(s):  
Microbial Community ◽  
Microbial Communities ◽  
Environmental Remediation ◽  
Real Life ◽  
Design Principles ◽  
Microbial Interactions ◽  
Potential Applications ◽  
New Gene ◽  
Global Biogeochemical Cycles ◽  
Synthetic Microbial Communities

Microbial communities drive diverse processes that impact nearly everything on this planet, from global biogeochemical cycles to human health. Harnessing the power of these microorganisms could provide solutions to many of the challenges that face society. However, naturally occurring microbial communities are not optimized for anthropogenic use. An emerging area of research is focusing on engineering synthetic microbial communities to carry out predefined functions. Microbial community engineers are applying design principles like top-down and bottom-up approaches to create synthetic microbial communities having a myriad of real-life applications in health care, disease prevention, and environmental remediation. Multiple genetic engineering tools and delivery approaches can be used to ‘knock-in' new gene functions into microbial communities. A systematic study of the microbial interactions, community assembling principles, and engineering tools are necessary for us to understand the microbial community and to better utilize them. Continued analysis and effort are required to further the current and potential applications of synthetic microbial communities.

A Review on Recent Trends in Nanomaterials and Nanocomposites for Environmental Applications

2020 ◽  
Vol 16 ◽  
Author(s):  
Kannappan Panchamoorthy Gopinath ◽  
Malolan Rajagopal ◽  
Abhishek Krishnan ◽  
Shweta Kolathur Sreerama
Keyword(s):  
Environmental Pollution ◽  
Environmental Remediation ◽  
Carbon Capture ◽  
Potential Applications ◽  
Important Challenge ◽  
Term Basis ◽  
Short And Long Term ◽  
Recent Trends ◽  
Water And Soil Pollution

Background: Depletion and contamination of environmental resources such as water, air and soil caused by human activities is an increasingly important challenge faced around the world. The consequences of environmental pollution are felt acutely by all living beings, both on a short and long-term basis, thereby making methods of remediation of environmental pollution an urgent requirement. Objectives: The objective of this review is to dissect the complications caused by environmental degradation, highlight advancements in the field of nanotechnology and to scrutinize its applications in environmental remediation. Furthermore, the review aims to concisely explain the merits and drawbacks of nanotechnology compared to existing methods. Conclusion: The current and potential applications of nanomaterials and nanocomposites in the prevention, control and reduction of air, water and soil pollution and the mechanisms involved have been elucidated, as have their various merits and demerits. The applications of nanotechnology in the fields of carbon capture and agriculture have also received attention in this review.

The Isolation and Prospect of Biosurfactants

2012 ◽  
Vol 550-553 ◽  
pp. 1124-1127
Author(s):  
Yun Yun Xu ◽  
Tao Zhang ◽  
Xin Nian Li ◽  
Lei Chen ◽  
Hao Wang
Keyword(s):  
Environmental Remediation ◽  
Oil Production ◽  
Active Compounds ◽  
Strong Interest ◽  
Biological Technology ◽  
Natural Surface ◽  
Potential Applications ◽  
Surface Active ◽  
Surface Active Compounds

Biosurfactants are natural surface-active compounds mainly synthesized by microorganisms, which have distinct advantages like no secondly pollution and friendly to environment compared with chemical surfactants. With the development of modern biological technology, biosurfactants have been shown a variety of potential applications, including medicine, agriculture, oil production and environmental remediation, so it has already caused many researchers a strong interest in the production of biosurfactants making use of biological technology. A review is made from the isolation of biosurfactants. In addition, on the foundation of the analysis,several suggestions about the development of biosurfactants are proposed.

scholarly journals Preparation and Characterization of Montmorillonite/PEDOT-PSS and Diatomite/PEDOT-PSS Hybrid Materials. Study of Electrochemical Properties in Acid Medium

2020 ◽  
Vol 4 (2) ◽  
pp. 51 ◽  
Author(s):  
Mohamed Kiari ◽  
Raúl Berenguer ◽  
Francisco Montilla ◽  
Emilia Morallón
Keyword(s):  
Electron Transfer ◽  
Electrochemical Properties ◽  
Hybrid Materials ◽  
Environmental Remediation ◽  
Electroactive Material ◽  
Physico Chemical ◽  
Emerging Pollutant ◽  
Transfer Capability ◽  
Potential Applications ◽  
Concentration Sensitivity

The hybridization of clay minerals with conducting polymers receives great interest for different potential applications, including environmental remediation. This work studies and compares the electrochemical properties of two different clays, montmorillonite (Mont) and diatomite (Diat), and their respective clay/PEDOT-PSS hybrid materials in H2SO4 medium. The hybrid materials were prepared by electropolymerization of EDOT in the presence of PSS. The physico-chemical and electrochemical properties of both clays were analyzed by different techniques, and the influence of the clay properties on electropolymerization and the electroactivity of the resulting clay/PEDOT-PSS hybrids was investigated. Specifically, the Fe2+/Fe3+ redox probe and the oxidation of diclofenac, as a model pharmaceutical emerging pollutant, were used to test the electron transfer capability and oxidative response, respectively, of the clay/PEDOT-PSS hybrids. The results demonstrate that, despite its low electrical conductivity, the Mont is an electroactive material itself with good electron-transfer capability. Conversely, the Diat shows no electroactivity. The hybridization with PEDOT generally enhances the electroactivity of the clays, but the clay properties affect the electropolymerization efficiency and hybrids electroactivity, so the Mont/PEDOT displays improved electrochemical properties. It is demonstrated that clay/PEDOT-PSS hybrids exhibit diclofenac oxidation capability and diclofenac concentration sensitivity.

NIR-plasmon-enhanced Systems for Energy Conversion and Environmental Remediation

2020 ◽  
Vol 36 (6) ◽  
pp. 1000-1005
Author(s):  
Wenke Wang ◽  
Sandra Elizabeth Saji ◽  
Siva Karutur ◽  
Hong Zheng ◽  
Guodong Meng ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Environmental Remediation

A Critical Review on Energy Conversion and Environmental Remediation of Photocatalysts with Remodeling Crystal Lattice, Surface, and Interface

ACS Nano ◽  
2019 ◽  
Vol 13 (9) ◽  
pp. 9811-9840 ◽  
Author(s):  
Jinming Luo ◽  
Shuqu Zhang ◽  
Meng Sun ◽  
Lixia Yang ◽  
Shenglian Luo ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Crystal Lattice ◽  
Critical Review ◽  
Environmental Remediation ◽  
Surface And Interface ◽  
Lattice Surface

Thermoelectric Transport in Silicon Germanium Nanocomposite

2008 ◽  
Author(s):  
Hohyun Lee ◽  
Daryoosh Vashaee ◽  
Xiaowei Wang ◽  
Giri Joshi ◽  
Gaohua Zhu ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Energy Conversion ◽  
Silicon Germanium ◽  
Figure Of Merit ◽  
Waste Heat ◽  
Electrical Energy ◽  
Energy Conversion Efficiency ◽  
Thermoelectric Effects ◽  
Thermoelectric Transport ◽  
Potential Applications

Direct energy conversion between heat and electrical energy based on thermoelectric effects is attractive for potential applications in waste heat recovery and environmentally-friendly refrigeration. The energy conversion efficiency depends on the dimensionless figure of merit of thermoelectric materials, ZT, which is proportional to the electrical conductivity, the square of the Seebeck coefficient, and the inverse of the thermal conductivity. Currently, the low ZT values of available materials restrict the applications of this technology. However, significant enhancements in ZT were recently reported in nanostructured materials such as superlattices mainly due to their low thermal conductivities. According to recent studies, the reduced thermal conductivity of nanostructures is attributed to the large number of interfaces at which phonons are scattered. Based on this idea, nanocomposites are expected to have a lower thermal conductivity than their bulk counterparts with low fabrication cost just by mixing nano sized particles. In this work, we will discuss mechanisms of thermoelectric transport via modeling and provide experimental evidence on the enhancement of thermoelectric figure of merit in SiGe-based nanocomposites.

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