Benzene toluene ethylbenzene & xylene (BTEX) in indoor air has significant harm for human health. This paper designs an experiment platform for alternating adsorption-enhanced catalytic treatment of BTEX by plasma. The experiment platform consists of adsorption/catalysis dual-function module, low-temperature plasma generation module, pipeline system and control system. The development of the experiment platform achieves the green goal of continuous control of low concentration BTEX for a long time without O₃ secondary pollution. The teaching application of the platform enriches the form and content of experimental courses such as air pollution control engineering and environmental comprehensive experiment, and helps to cultivate students′ innovative thinking and comprehensive ability to solve practical engineering problems.

Exfoliated graphite (EG) is promising oil sorbent as well as an intermediate product for the preparation of flexible graphite films (FGFs). It has been a critical challenge to energy conservation and pollution abatement for the traditional EG production technique. Here, we propose a simple and effective preparation method to acquire EG in which flake graphite is intercalated and exfoliated at room temperature, not involving any pollutant emission. The influence factors in the preparation process were explored, such as the amount of H₂SO₄ and H₂O₂, the temperature for the preparation of room temperature exfoliated graphite (RTEG). In contrast to the EG by high temperature exfoliation (HTEG), RTEG exhibits a homogeneous structure and a significantly increased volume and surface area. Moreover, EG blocks with high oil sorption capacity and excellent reuse performance can be obtained by RTEG method. Especially, FGFs fabricated by RTEG has high flexibility, thermal conductivity and electrical conductivity. It suggests that this environment-friendly technology is suitable for large-scale industrial implementation of graphite-based oil sorbents and flexible materials.