Department of Basic Sciences, IITM, IES University, Madhya Pradesh, Bhopal, 462044, India.
Department of Physics, University Centre for Research and Development (UCRD), Chandigarh University, Gharuan, Mohali, Punjab, 140413, India.
Environ Sci Pollut Res Int. 2023 Sep;30(42):95039-95053. doi: 10.1007/s11356-023-29235-9. Epub 2023 Aug 14.
More than 60% of India's population relies on agriculture as their primary source of income, making it the nation's most important economic sector. Rice husk (often abbreviated as RH) is one of the most typical by-products of agricultural production. Every five tonnes of rice that is harvested results in the production of one tonne of husk. The concept of recycling and reusing waste from agricultural production has received interest from a variety of environmental and industrial perspectives. A wide variety of nanomaterials, including nano-zeolite, nanocarbon, and nano-silica, have been discovered in agro-waste. From rice cultivation to the finished product, there was a by-product consisting of husk that comprised 20% of the overall weight, or RH. The percentage of silica in RH ash ranges from 60 to 40%, with the remaining percentage consisting of various minerals. As a direct consequence of this, several distinct approaches to generating and extracting nanomaterial from rice husk have been developed. Because it contains a significant amount of cellulose and lignin, RH is an excellent and economical source of carbon precursor. The goal of this chapter is to produce carbon-based nanomaterials from RH.
超过 60%的印度人口依赖农业作为主要收入来源，这使得农业成为印度最重要的经济部门。稻壳（通常缩写为 RH）是农业生产中最典型的副产品之一。每收获五吨大米就会产生一吨稻壳。从农业生产中回收和再利用废物的概念已经引起了各种环境和工业方面的关注。在农业废弃物中发现了各种各样的纳米材料，包括纳米沸石、纳米碳和纳米硅。从水稻种植到成品，都有一个由稻壳组成的副产品，占总重量的 20%，即 RH。RH 灰分中二氧化硅的百分比在 60%到 40%之间，其余部分由各种矿物质组成。因此，已经开发出几种从稻壳中生成和提取纳米材料的不同方法。由于 RH 含有大量的纤维素和木质素，因此它是一种极好且经济的碳前体来源。本章的目的是从 RH 中生产基于碳的纳米材料。
