Topic Review Peer Reviewed
Physical-Chemical Properties of Nano-Sized Phyllosilicates: Recent Environmental and Industrial Advancements
Phyllosilicates are common minerals that include the most widely known micas and clay minerals. These minerals are found in several natural environments and have unique physical-chemical features, such as cation exchange capacity (CEC) and surface charge properties. When phyllosilicates are nano-sized, their physical-chemical properties are enhanced from those of the micro-sized counterpart. Because of their unique crystal chemical and physical-chemical features, kinetics, and particle size, nano-sized clay minerals (i.e., kaolinite, montmorillonite/illite) and micas (i.e., muscovite) are of great interest in several fields spanning from environmental applications to engineered materials. This paper aims to overview the recent developments of environmental protection and technological applications employing nano-sized natural micas and clay minerals. Emphasis is given to the role that the unique physical-chemical properties of montmorillonite, vermiculite, kaolinite, and muscovite play in nanoparticle formulations, manufacture, and technical performance.
  • 665
  • 06 Dec 2023
Topic Review
Initiatives for Reducing the Carbon Footprints at Ports
Seaport activities account for 3% of global carbon emissions, and as an important industrialised economic centre, ports engage in numerous industrial and financial activities that could increase their greenhouse gas (GHG) emissions and carbon footprints (CF). The 13th sustainable development goal (SDG) states that these activities must be balanced with environmental considerations.
  • 274
  • 06 Dec 2023
Topic Review
Oceanic Environmental Impact in Seaports
Seaports are gateways that connect a nation to the world economy. With trade by sea increasing due to globalization, the need for the improvement and development of seaports cannot be overlooked. While the development of ports is considered essential for the economic growth and prosperity of a nation, they also result in environmental deterioration that can hurt the future of humanity.
  • 236
  • 06 Dec 2023
Topic Review
Dolomite Mineralogy
Dolomite [CaMg(CO3)2] is a rhombohedral carbonate mineral. The dolomite structure consists of an ordered arrangement of alternating layers of Ca2+ and Mg2+ cations interspersed with CO32− anion layers normal to the c-axis, which is in contrast to the disordered distribution of Ca2+ and Mg2+ in the (high-Mg) calcite structure.
  • 198
  • 04 Dec 2023
Topic Review
Quinone-Based Redox Mediators
Quinone compounds are a class of substances that contain cyclic unsaturated diketones, especially carbocyclic compounds and their derivatives with quinone groups. These compounds contain either q-quinone or o-quinone groups and can be divided into benzoquinone, naphthoquinone, anthraquinone, and phenanthraquinone according to their structural characteristics. Structurally, all compounds containing quinone groups have the potential to act as redox mediators to accelerate electron transfer.
  • 466
  • 01 Dec 2023
Topic Review
Molybdenum-Based Electrode Materials
As a novel type of green energy storage device, supercapacitors exhibit several orders of magnitude higher capacities than the traditional dielectric capacitors and significantly higher power density than the traditional secondary batteries. Supercapacitors have been widely applied in energy storage fields. Electrode materials, as pivotal components of supercapacitors, play an important role in electrochemical performance. Molybdenum-based materials have attracted widespread attention for their high theoretical capacitance, abundant resources, and facile synthesis tactics. Therefore, it is necessary to systematically summarize the application of Mo-based electrode materials in high-performance supercapacitors and unveil their developmental direction and trends.
  • 175
  • 01 Dec 2023
Topic Review
Application of Non-Thermal Plasma over Zeolite-Based Materials
 Zeolite based materials are widely used as adsorbents and catalysts for purifying air pollutants (such as NO) and VOCs due to rich pore structure, regular pore distribution and numerous ion exchange sites. Heat treatment is a necessary procedure to remove impurities in pores and promote the uniform dispersion of metal active substances, and then zeolite based adsorbent/catalyst is used to purify nox/volatile organic compounds. However, the traditional thermal field treatment (i.e. high temperature calcination, high temperature purging, etc.) requires a lot of energy consumption. In contrast, non thermal plasma and other unconventional external field treatments show significant advantages of high efficiency, low energy consumption and low pollution, and are used to replace traditional heat treatment in many fields. 
  • 223
  • 01 Dec 2023
Topic Review
Chemical and Biological Degradation for Perfluorooctanoic Acid
Perfluorooctanoic acid (PFOA) is a perfluoro compound that contains an eight-carbon perfluoroalkyl chain followed by a carboxylic acid function group. It has found applications in water-resistant coating and is produced either by degrading other long-chain perfluorinated carboxylic acids or fluorotelomer alcohol. PFOA is challenging to further degrade during water treatment processes, leading to its accumulation in natural systems and causing contamination. Research has been conducted to develop several methods for its removal from the water system.
  • 326
  • 01 Dec 2023
Topic Review
Carbon Footprint Reduction through Modern Supply-Chain Measures
The worldwide Sustainable Development Goals (SDGs) for smart cities and communities focus significant attention on air quality and climate change. Technology and management can reduce fossil fuel dependence in smart cities’ energy supply chains (SC). A sustainable smart city and reduced carbon emissions require coordinated technology and management with appropriate infrastructure. 
  • 159
  • 01 Dec 2023
Topic Review
Energy Efficiency in Land Consolidation
Land consolidation in rural areas is greatly influenced by a number of social, agricultural, and economic factors. They extend the time and complicate activities related to the implementation of this project. Land consolidation is a huge investment, requiring a good and up-to-date map. 
  • 256
  • 01 Dec 2023
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