The relevance of this work resides in the fact that earthen materials are still widely used worldwide because of their low cost, availability, and low environmental impact.
Nowadays, various nanomaterials have been developed for quite a few applications in different fields of endeavors, due to their low cost, availability, high surface area, and most prominently environmental-friendly.
This finding demonstrated that 0.01% CCa, 0.5% H2O2, and 0.5% CA could be useful in improving the safety and quality of betel leaf, however, use of 0.01% CCa is preferable because of its low cost, availability, biodegradable and non-hazardous characteristics compared to other sanitizers used.
It embraces a wide range of advantageous properties such as low cost, availability, and biological and chemical inertness.
Some researchers have been used naturally occurring adsorbent for fluoride removal from water due to its low cost availability.
The nano-TiO2 photo semiconductor continues to attract attention of agricultural researchers because of its favorable physical/chemical properties, low cost, availability, and high stability.
Thus, with considering to low cost, availability and abundance of date-palm cultivation in Iran (242000 ha), it seems that date-palm wastes can be replaced with perlite media for growing of certain vegetable in Iran.
Unavoidably, in spite of its genotoxic and carcinogenic properties [4], it is still inevitably, being extensively used in the aforementioned industries due to its low cost, availability, and efficacy [5] and from these ways enter massively to the underground waters.
Some of the advantages of adsorption process are possible regeneration at low cost, availability of known process equipment, sludge-free operation and recovery of the sorbate (Kapdan and Kargi 2002).
In recent decades, organic-based semiconducting materials have been widely used as active layers of various electronic devices such as photovoltaic devices [7], light-emitting diodes [8], and thin-film transistors [9] due to their relatively low cost, availability for large-area fabrication, and mechanical flexibility [10].
