Nitrogen-doped carbon dots (NCDs) have been constructed in which coal washing
wastewater is used as carbon precursor, tryptophan is added for nitrogen doping and …

This paper presents a thorough examination of methane capture from Polish coal mines,
contextualized within the framework of the European Union's (EU) climate policy objectives …

An economical facile method was established for the preparation of luminescent carbon
quantum dots (CQDs) by utilizing the waste coal washery rejects as precursor materials. The …

In solid waste management, the Methane (CH4) gas generation needs to be monitored and
assessed for the environmental protection and prevent the CH4 gas atmospheric dispersion …

The characteristics of HGI fractions of the blend coal were investigated. One rejected coal
(A) with three imported coals, Indonesian coal (B), Russian coal (G) and Australian coal (H) …