Hausmannite (Mn3O4) is considered as one of the promising electrode materials due to its environment friendly nature, low cost, natural abundance, good stability, and high theoretical specific capacitance (~1400 F g−1) [9, 10, 11].
In recent years, fiber has widely attracted attention as a multipurpose, renewable, and environment-friendly natural resource.
Three dimensional vertical graphene (3DVG) is synthesized via plasma enhanced chemical vapor deposition (PECVD) using cost-effective and environment-friendly natural oil of M. alternifolia as precursor.
Wooden material is one of the most commonly used construction materials since history of humanity due to its environment friendly and renewable natural source.
Natural fibres are suitable for reinforcement of soils due to their availability, low cost and environment-friendly nature.
The chitosan polymer has natural antimicrobial, environment friendly, biocompatible, biodegradable, and film-forming properties, and is nontoxic to mammals.
With an increasing concern on public safety, a renewed interest on the use of natural products of plant origin is desired because natural products are effective, environment friendly, biodegradable, inexpensive, and readily available [ 8, 9].
The toxic and allergic reactions associated with the synthetic dyes leads to the interest in the use of environment friendly dyes such as safer synthetic dyes and indisputably natural dyes.
Utilization of plant extract and biomass is another environment friendly way of managing the disease as a source of natural pesticides.
