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Topic Review
Biography
Topic Review
Green Bioprocessing of Algae-Derived Biochar
Biochar is a carbonaceous substance that is created from algal biomass by thermal breakdown in an oxygen-absence environment.
1.0K
31 Jan 2023
Topic Review
Graphene Family Nanomaterials (GFN)-TiO2
TiO2 is a naturally occurring oxide of titanium with structural stability and corrosion resistance. Although TiO2 is typically considered to be of low toxicity, the development of TiO2 nanotechnologies has resulted in increased human and environmental exposure, putting TiO2 nanoparticles under toxicological scrutiny. The points of view on the intrinsic properties of TiO2, GFNs (pristine graphene, graphene oxide (GO), reduced GO, and graphene quantum dots (GQDs)), and GFN-TiO2 are presented. This entry also explains practical synthesis techniques along with perspective characteristics of these TiO2- and/or graphene-based materials. The enhancement of the photocatalytic activity by using GFN-TiO2 and its improved photocatalytic reactions for the treatment of organic, inorganic, and biological pollutants in water and air phases are reported. It is expected that this entry can provide insights into the key to optimizing the photocatalytic activity of GFN-TiO2 and possible directions for future development in these fields.
531
01 Dec 2021
Topic Review
Graphene Applications in Microbial Fuel Cells
Microbial fuel cells are increasingly an object of interest due to the possibility of simultaneous electrical energy production and wastewater treatment, and connecting them with other technologies. In addition, this technology is used to recover different resources such as nutrients, e.g., nitrogen and phosphorus or critical metals, and for desalination and biodetection. One of the essential aspects on which intensive works are in progress is the material used to build electrodes. There has been considerable development in materials for electrodes used in microbial fuel cells. More and more often, scientists reach for materials based on the most recent achievements of technology, and one of them is graphene. This material is increasingly used in industry and science, including microbial fuel cells. Graphene is connected with other materials and modified in numerous ways, and it seems to be a perfect alternative for standard carbon or stainless steel electrodes.
634
20 Jan 2023
Topic Review
Government’s Role in Collaborative Innovation of Construction Enterprises
Suppliers’ participation in green project collaborative innovation has been widely recognized by construction enterprises. However, there are still many problems in the collaborative innovation system, such as a lack of collaborative innovation motivation, imperfect collaborative innovation infrastructure, and opportunistic behavior of suppliers. The role of the government in the collaborative innovation system of green building projects of construction enterprises is to promote innovation or formulate government regulations.
409
23 Aug 2022
Topic Review
GIS and MCDM in Flood Risk Management
The identification and classification of flood-prone areas comprise a fundamental step in the Flood Risk Management approach, providing subsidies for land use planning, floodproofing policies, the design of mitigation measures and early warning systems.
281
25 Aug 2023
Topic Review
Geosynthetics in Sustainable Engineering Solutions
Geosynthetics have proven to provide sustainable solutions for geotechnical and geoenvironmental problems when used with natural materials.
758
03 Dec 2021
Topic Review
Geopolymers vs. Cement Matrix Materials
Geopolymers are spreading more and more in the cementitious materials field, exhibiting technological properties that are highly competitive to conventional Portland concrete mixes.
764
24 Aug 2021
Topic Review
Geopolymers
Geopolymers represent novel material types at the interface of glass, ceramics, and materials based on traditional inorganic bonds. Geopolymers utilize waste materials as source material and activate the materials with alkaline activators to act as binders. Metakaolin is categorised as an aluminosilicate material because it contains variable amounts of alumina and silica. Geopolymers offer benefits due to their ease of synthesis and low emissions of greenhouse gases such as CO2, SO2, and NOx.
791
30 Sep 2022
Topic Review
Geopolymer Composites Designed for Water and Wastewater Treatment
Since the discovery of geopolymers four decades ago, they have come quite a long way successfully and gained attention, mostly due to the effortlessness for geo-synthesis with lesser emission of greenhouse gases (GHG). Their admirable properties, such as toughness, heat and fire resistance, refractory nature and radiation hardness, altogether make them promising for applications for radioactive waste containment, as well as for pozzolanic action, making them multi-functional. In realism, lots of industrial materials are derived using geopolymers. For example, fiber-based geopolymer composites are regarded as fire-resistant. Quite a lot of geopolymeric composites are positioned in metal tool coatings and the construction of cabinets of airplanes and buildings, with a view to trim down the intensity of inferno incidents. The polymeric chain-like structure of geopolymers contributes higher chemical resistance, lower shrinkage and enhanced resistance to abrasion with high early mechanical strength. This entry describes that applications and interaction of geopolymer.
1.0K
30 Dec 2021
Topic Review
Geopolymer Cement-Based Composite as Self-Cleaning Coating
Geopolymer is the combination of the pozzolanic compound, which is also known as aluminosilicate source materials with an alkaline activator solution. The concept of green blending materials has led to the development of a new binding material for green materials, which is geopolymer with an addition of photocatalyst. Moreover, concepts of self-cleaning have received great attention in construction building materials. Self-cleaning with the presence of photocatalyst has been applied in building materials to overcome the problem of building surfaces becoming dirty after exposure for a long time in highly polluted areas.
663
15 Feb 2022
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