Adsorption Techniques - A Review

The industrial significance of adsorption phenomenon and some i mportant aspects of the adsorption technqiue are discussed. A brief i ntroduction on some fundamentals of adsorption and a modern theory which is based on the concept of excess surface work is included. Some noble adsorbents, which are significant from industrial poitn of view, are reported. Some important spectroscopic techniques like IR, Raman, NMR, etc., along with other techniques are discussed' and some important results from spectroscopic investigation are also i ncluded. Also, the work done by the other workers in the past decade, specially in the adsorption of low molecular weight compounds onto metal oxide, activated carbon and some miscellaneous adsorbents are critically reviewed.